Method for radio communications between mobile object and stationary one residing at initial center of mobile-object route

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile object from stationary one residing at initial center of mobile-object route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 6 dwg, 1 tbl

 

The technical solution relates to radio communications, and in particular to methods of information transmission on the movable object fixed object located at the initial point of the route of movement of the moving object.

There is a method of satellite communication (see, for example, Owhali, Niestetal, Usarc, Hardon Aguilar. Radio communication. Edited Avelona. - M.: Hot line - Telecom, 2001, S. 224-279), namely, that transmit radio signals with a fixed object, take these radio signals on an artificial Earth satellite, transmit the radio signals from artificial Earth satellite, receive these radio signals on a movable object, transmit radio signals with a mobile object, take these radio signals on an artificial Earth satellite, transmit the radio signals from artificial Earth satellite, receive these radio signals to a stationary object.

This method allows a great range of radio communication between ground stationary object and a moving object located on the surface of the Earth or near it, regardless of their routes, however, requires removal of radio communication satellites in earth orbit and motion control and operation, which complicates the method.

However, the considerable height of the orbits of satellites (from hundreds of kilometers in systems with low earth which orbits up to tens of thousands of kilometers in systems with high-elliptical and geostationary orbits (see, for example, Umoristi, War, Lamnidae. Future satellite communication systems. - M.: Hot line - Telecom, 2000, S. 71) require on the space station, as well as on the stationary and movable objects transceiver devices with large capacity, equipped vysokonapolnennyh antennas.

However, increasing the power transmitting devices causes the deterioration of their mass and size parameters, decreased immunity of various electronic funds placed on the stationary and movable objects, as well as the reduction of electromagnetic safety of people on the immovable and movable objects.

The above drawback in combination with disabilities create antennas with higher gain leads to an increase in the geometric space occupied by this system with radio (local coverage of the earth surface by a single beam satellite repeater reach hundreds of kilometers in diameter - see ibid., S. 78-110), which reduces the efficiency of the method in the simultaneous operation of multiple radio systems.

The term “volume of geometric space” describes one of the three major (along with the bandwidth and time) components of the RF space radio system the ligature (see Naagin. Topical issues of monitoring in the Russian Federation. - M.: Radio and communication, 2000, S. 11-12).

There is a method of radio communication between ground control station and the aircraft (see, for example, PS Davydov, P.A. Ivanov. The maintenance of avionics. The Handbook. - M.: Transport, 1990, S. 88-92), namely, that transmit radio signals with ground control point, take these radio signals to aircraft, transmit radio signals from the aircraft, take these signals to ground control points.

This method does not require solving complex problems inherent in satellite radio, and allows a great range of radio communication with the aircraft performing flight at high altitudes on arbitrary route.

However, the communication distance with low-flying aircraft significantly decreases as a result of the influence of reflection of electromagnetic waves from the Earth's surface (see, for example, theoretical foundations of radar. Edited Vaitulevich. - M.: Soviet radio, 1978, S. 410).

To increase the range of radio communication it is necessary to increase the power transmitting-receiving stations located at the ground control tower and aircraft, as well as the orientation of the antennas of these radio stations is.

However, increasing power transceiver stations causes the deterioration of their mass and size parameters, decreased immunity of various electronic funds placed in the CWP and aircraft, as well as the reduction of electromagnetic safety of people on the control tower and aircraft.

The above drawback in combination with disabilities create antennas with higher gain leads to an increase in the geometric space occupied by the communication system, which reduces the efficiency of the method in the simultaneous operation of multiple radio systems.

Meeting the technical challenge is to improve mass and size parameters transceiver stations of a moving object and a stationary object located at the initial point of the route of movement of the moving object, increasing the noise immunity of various electronic funds placed on the stationary and movable objects, the increase of electromagnetic safety of people on the immovable and movable objects, the reduction in the geometric space occupied by the radio system, and hence, increase the efficiency of the method in the simultaneous operation of the som is such radio communication systems based on the implementation of the radio using discharged from the movable object low intermediate transceiver stations, equipped with omnidirectional antennas, and discharged intermediate transceiver station pre-create on a movable object.

The solution of the technical problem in the way radio communication between the mobile object and a stationary object located at the initial point of the route of movement of the moving object, namely, that transmit at a given operating frequency of the radio signals from a stationary object are specified operating frequencies of the radio signals on the movable object is achieved by the fact that since the time of the first removal of a moving object from a stationary object at a distance determined by the given ranges of validity radio station, placed on a stationary object, and the intermediate transceiver stations, rolling object discharge established on the movable object intermediate transceiver stations at intervals along the range defined given the range of action of transmitting and intermediate transceiver stations, with radio transmission from a fixed object on the movable object is that accept transferred from a fixed object signals at first thrown from a moving object intermediate transceiver station and transmit them, accept transferred from the first dropped from under iznaga object intermediate transceiver station radio signals on the second thrown from a moving object intermediate transceiver station and transmit them similarly carry out reception and transmission of radio signals using other discarded at a later time with the rolling object intermediate transceiver stations in the direction of transmission of the radio signals from the reset intermediate transceiver stations in earlier times to reset at a later time, take on a movable object, the radio signals are radio signals transmitted from the past thrown from a moving object intermediate transceiver station.

When transmitting radio signals from a fixed object on the movable object specified operating frequency of the radio signals received at each thrown from a moving object intermediate transceiver station, except for the first one thrown from a moving object intermediate transceiver station is specified operating frequency of the radio signals transmitted from the intermediate transceiver station, thrown from a moving object closest to the time of reset of this intermediate transceiver station to an earlier point in time, the specified operating frequency of the radio signals received at the first thrown from a moving object intermediate transceiver station is specified operating frequency of the radio signals transmitted from a fixed object, ass is Noy working frequency radio signals, taken on a movable object is specified operating frequency of the radio signals transmitted from the past thrown from a moving object intermediate transceiver station.

The term “moving object” is generally accepted (see, for example, Soloviev Y.A. satellite navigation System. M: Eco-trends, 2000, S. 39). To moving objects include, in particular, means of land, water and air transport, equipped with radio communication, and moving objects can not only be in motion, but also to make a stop.

Figure 1 is conventionally depicted a stationary object and a movable object, a transmitting station and a receiving station, placed respectively on the fixed object and the moving object, the intermediate transceiver station, thrown from a moving object, for the case where the stationary object is a ground control station, the movable object is a low-flying aircraft, the number dropped intermediate transceiver stations is eight.

Figure 2 is conventionally depicted a receiving station, a control unit, a speed meter, a unit of task unit reset, containing the actuator, the conveyor placed on a movable object, the bearing elements are mounted on the conveyor belts, magnets, mounted on odnomu each of the bearing elements, intermediate transceiver station placed after creating one in each of the critical elements are in the upper position, and each of these intermediate transceiver stations attached using straps a parachute, for the case where the number of intermediate transceiver stations is six.

Figure 3 is conventionally depicted transmitting station.

Figure 4 is conventionally depicted a receiving station.

Figure 5 is conventionally depicted transceiver unit intermediate transceiver station.

Figure 6 is conventionally depicted intermediate transceiver station after it is created.

The system for implementing the method presented in figures 1-6, contains placed on stationary object 1 and the movable object 2 radio transmitting station 3 and a receiving station 4, respectively, intermediate transceiver station 5 posted after you create on the movable object 2, unit 6, management, measurement, 7 speed, block 8 job 9 reset, placed on the movable object 2, block 9 contains reset the actuator 10, the conveyor belt 11, the belt 12 of conveyor 11 fixed bearing elements 13, and the intermediate transceiver station 5 are placed one in each of the bearing elements 13 located in the upper position, and to each intermediate transceiver is station 5, placed in the bearing element 13 attached using straps 14 parachute 15, arranged in this support element 13, block 9 contains reset magnets 16, placed one in each of the bearing elements 13, the housing 17 of the movable object 2 has a hole 18, a radio transmitting station 3 contains a source 19 of messages, the first Converter 20 frequency first local oscillator 21, the first amplifier 22 power, the first transmitting antenna 23, a receiving station 4 includes the first receiving antenna 24, the first band-pass filter 25, the first low noise amplifier 26, the second inverter 27 frequency controllable oscillator 28, the first amplifier 29 intermediate frequency demodulator 30, the receiver 31 of the message, each intermediate transceiver station 5 includes after creating transceiver block 32 and block 33 of the power transmitting unit 32 includes a second receiving antenna 34, the second bandpass filter 35, the second low noise amplifier 36, the third inverter 37 frequency, a second local oscillator 38, a second amplifier 39 intermediate frequency, a fourth inverter 40 frequency, the third local oscillator 41, a second amplifier 42 power, the second transmitting antenna 43, block 33 includes an electromagnetic power relay 44, the switch 45, the battery 46.

The outputs of block 8 jobs and meter 7 speed connected to respective inputs of the control block 6, athe output of which is connected with the control input of the controlled oscillator 28 a receiving station 4, another output of the control block 6 is connected to the input of the actuator 10 of the conveyor 11, a transmitting station 3, the output of a source 19 of messages connected to the first input of the first Converter 20 frequency, a second input connected to the output of the first local oscillator 21, the output of the first Converter 20 frequency connected to the input of the first amplifier 22 power, the output of which is connected to the first input of the transmitting antenna 23, a receiving station 4, the output of the first receiving antenna 24 is connected to the input of the first bandpass filter 25, the output of which is connected to the input of the first low-noise amplifier 26, the output of which is connected to the first input of the second inverter 27 frequency second input connected to the output of the controlled oscillator 28, the output of the second inverter 27 frequency connected to the input of the first amplifier 29 intermediate frequency, the output of which is connected to the input of the demodulator 30, the output of which is connected to the input of the receiver 31, the message transceiver unit 32 of each intermediate transceiver station 5 the output of the second receiving antenna 34 is connected to the input of the second bandpass filter 35, the output of which is connected to the input of the second low-noise amplifier 36, the output of which is connected to the first input of the third inverter 37 frequency, a second input connected to the output of the second local oscillator 38, the output of tert is it Converter 37 frequency connected to the input of the second amplifier 39 intermediate frequency, the output of which is connected to the first input of the fourth inverter 40 frequency, a second input connected to the output of the third local oscillator 41, the output of the fourth inverter 40 frequency connected to the input of the second amplifier 42 power, the output of which is connected to the second input of the transmitting antenna 43, in block 33 the power of each intermediate transceiver station 5, the first output winding of an electromagnetic relay 44 is connected with the positive pole of the battery 46, the second terminal is connected to the first output of the reed switch 45, the second terminal of which is connected to the negative pole of the battery 46, the positive pole of the battery 46 is connected through the normally closed contacts of the electromagnetic relay 44 to the positive terminal the power transmitting-receiving unit 32, a negative power terminal of which is connected to the negative pole of the battery 46.

The range of radio broadcast stations 3 are set according to specified ranges of action of the intermediate transceiver stations 5, the frequency of the first local oscillator 21 is specified transmission frequency radio transmitting station 3, the frequency of the second local oscillator 38 each intermediate transceiver station 5 is different from the predetermined frequency of reception of this intermediate transceiver station 5 to the preset value of the intermediate frequency last, cha is Thoth configuration of the third local oscillator 41 of each intermediate transceiver station 5 is different from the frequency for the transmission of this intermediate transceiver station 5 to the preset value of the intermediate frequency last, the desired transmission frequency of each of the intermediate transceiver station 5 is different from the set of transmit frequencies other intermediate transceiver stations 5, given the frequency of use of each intermediate transceiver station 5, located on the movable object 2, in addition to the intermediate transceiver station 5, located at a minimum destruction along the conveyor 11 from the opening 18, is specified transmission frequency of the intermediate transceiver station 5, located at a minimum distance from this intermediate transceiver station 5 in the direction along the conveyor 11 to the hole 18, the set reception frequency of the intermediate transceiver station 5, located on the movable object 2 at a minimum destruction along the conveyor 11 from the opening 18, is specified transmission frequency radio transmitting station 3, located on stationary object 1.

The method consists in the following.

Consider a situation in which a fixed object 1 is ground control station, a movable object 2 is low-flying aircraft such as a helicopter or blimp.

The term “low flying aircraft” is generally accepted (see, for example, the Radio system. Edited by Prof. Umetalieva. - M.: Higher school, 1990, S. 221). Movable objects is CT 2, in particular an aircraft is flying at low levels, if the condition (see theoretical bases of radar. Edited Vaitulevich. - M.: Soviet radio, 1978, S. 410):

where C is the speed of light; ha- the height of the first transmitting antenna 23 transmitting station 3, located on stationary object 1; hb- the height of the first receiving antenna 24 a receiving station 4, is placed on the movable object 2; d - distance between a fixed object 1 and a movable object 2.

The expression (1) is true, if the condition of mirror reflection of radio waves from the underlying surface (see ibid., 405 S.):

where ψ - angle slip; δ - the height of the irregularities of the underlying surface.

For definiteness, let us assume that the surface on which the Ground surface is a mirror reflecting the horizontal plane, i.e. condition (2) is performed.

On stationary object 1 is placed radio station 3.

On the movable object 2 is placed a receiving station 4 and N previously created on the movable object 2 intermediate transceiver stations 5 with n=1,2,...,N, where n is a positive integer.

In the General case of a moving object 2 in each point is e reset can be reset on more than one intermediate transceiver stations 5.

Take that with a movable object 2 at each point of the reset discharge only one intermediate transceiver station 5.

Earlier time points reset intermediate transceiver stations 5 with the movable object 2 are in the intermediate transceiver station 5 with lower numbers:

where tn, tv- time reset of the n-th and v-th intermediate transceiver stations 5, respectively; v=1,2,...,N be positive integers.

On the movable object 2, the reference time tbconduct from the timeat which the movable object 2 was the starting point Of your route.

In the initial paragraph On the route of movement of the moving object 2 is the stationary object 1 (Fig 1).

Last reset with the movable object 2 intermediate transceiver station 5 is an intermediate transceiver station 5, the discharge of which is carried out in the most recent point in time:

The range of the n-th reset with the movable object 2 intermediate transceiver station 5, except the last one thrown from a moving object 2 intermediate transceiver station 5 (n = nmax), equal

where Rn)- power the awn radio signals, transferred from the n-th reset intermediate transceiver station 5; Pn+pminsome threshold value, which characterizes the sensitivity of the (n+1)-th reset intermediate transceiver station 5; hnhn+1- the height of the second transmitting antenna 43 n-th and the second receiving antenna 34 (n+1)-th reset intermediate transceiver stations 5, respectively.

The range of the last reset with the movable object 2 intermediate transceiver station 5 is equal to

where- power radio signals transmitted since the last reset with the movable object 2 intermediate transceiver station 5; Pb.some threshold value, which characterizes the sensitivity of the receiving station 4 movable object 2;

- the height of the second transmitting antenna 43 last reset with the movable object 2 intermediate transceiver station 5.

The range of radio broadcast stations 3 a stationary object 1 is equal to

where Rand [Izl]- power radio signals transmitted from a fixed object 1;some threshold value, which characterizes the sensitivity of the first with Rosenau with the movable object 2 intermediate transceiver station 5; - the height of the second receiving antenna 34 first thrown from a moving object 2 intermediate transceiver station 5.

Under the height of the antenna understand the distance to under the antenna point of the underlying surface.

The height handthe location of the first transmitting antenna 23 transmitting station 3 is fixed and is determined by the unique design and layout a stationary object 1 and the radio station 3.

The height hbthe location of the first receiving antenna 24 a receiving station 4 is changed in the range of hb minto hb max. The minimum value of the height hb minis achieved when the movable object 2 is located on an underlying surface, and is determined by the characteristics of the structures and layout of the mobile object 2 and a receiving station 4. The maximum value of the height hb maxdoes not exceed the sum of the values of hb minand maximum flight altitude hb maxmovable object 2.

Height hnthe location of the second receiving antennas 34 and second transmitting antennas 43, thrown from a moving object 2 intermediate transceiver stations 5, range of values of hn minto hn max. The minimum value of the height hn minis achieved when the n-th intermediate priemere the surrounding station 5 is located on an underlying surface, depending on the design of this intermediate transceiver station 5. The maximum value of the height hn mincorresponds to the time of discharge of the n-th intermediate transceiver station 5 with the movable object 2 and does not exceed the value of hn max.

Expression(1), (2), (5)-(7) are approximate and do not take into account the geometry of the object 1, the movable object 2 and the intermediate transceiver stations 5.

Considering the above, we assume that for all n fair equality

From expressions (5), (6) it follows that under the conditions (8) - (11) the minimum range of the intermediate transceiver stations 5 equal

For given values of R[Izl], Rprminand hmintaking into account formulas (12) range intermediate transceiver stations 5 set equal

The range of radio broadcast stations 3 specify the given ranges of action of the intermediate transceiver stations 5, for example, by the formula:

In General, if you route the movable object 2 can make a stop at arbitrary time intervals.

Assume that moving objects is CT 2 carries on from the initial point O where is the stationary object 1, the vertical height hb maxand then performs a horizontal flight at a height of hb maxwith constant velocity Vbalong the x-axis in the direction of in the direction of increasing values of x; the maximum distance from a fixed object 1 to the movable object 2 is equal to db maxandcharacterizes the length of the route of movement of the moving object 2.

Before time tb minfirst remove the movable object 2 on object 1 at a distance of db minwith the movable object 2 reset intermediate transceiver stations 5 do not exercise. While the implementation of the method lies in the fact that transmit radio signals from a fixed object 1, take these signals to the movable object 2.

The value of db mindetermined by specified distances of Ra=Rn=Rminaction radio transmitting station 3 and the intermediate transceiver stations 5.

In particular, the value of db minyou can set

where k1≥1 - factor, taking into account the approximate nature of the applied formulas.

From the moment of time tb minfirst remove the movable object 2 on object 1 at a distance of db minwith the movable object 2 discharge intermediate preempted the existing stations 5 intervals in range, defined by the given ranges of validity transmitting station 3 and the intermediate transceiver stations 5.

Effect of the assumptions interval reset intermediate transceiver stations 5 with the movable object 2 can be

where k2≥1 - factor.

Reset the first intermediate transceiver station 5 with the movable object 2 is carried out in a time tb minfirst remove the movable object 2 on object 1 at a distance of db min.

The distance from a fixed object 1 to the movable object 2, which discharge the intermediate transceiver stations 5, can be measured on a movable object 2 using inertial or Doppler systems reckoning (see Aeronautical radionavigation: a Handbook. Edited Ass. - M.: Transport, 1990, S. 6-8).

When the previously specified characteristics of movement of the moving object 2 reset the n-th intermediate transceiver station 5 is carried out in time

and

where τhmax- vertical lift movable object 2 from the starting point Of the height hmax.

Formula (17) is due to the fact that the intervals in range Δdndefine max is possible distances between two intermediate transceiver stations 5, thrown from a moving object 2 in the next time.

Formula (18) is due to the fact that the range of db mindetermines the maximum distance from the moving object 2 to object 1, corresponding to time tb min.

In the General case, the movable object 2 can move along a complex route. In particular, it can first be removed from a fixed object 1, and then to approach him, then again be removed and closer, etc. While the movable object 2 may repeatedly pass through the start point Of which is the stationary object 1, and, therefore, repeatedly placed him at a distance < db min. However, the reset intermediate transceiver stations 5 with the movable object 2 is not carried out only until the time of the first removal of the movable object 2 on object 1 at a distance of db min. From this point in time with the movable object 2 discharge intermediate transceiver stations 5 intervals range defined by the given ranges of validity transmitting station 3 and the intermediate transceiver stations 5, and the intermediate reset transceiver stations 5 is carried out and in that case, if the movement of the moving object 2 on the route of rasstojanie stationary object 1 will again become less than the value of d b min.

If the wind speed is negligible, the velocity Vbthe movement of the moving object 2 is so small that it does not cause significant disturbance of air masses, the trajectory of the fall intermediate transceiver stations 5, you can take vertical. While the aerodynamic properties of the structures of the intermediate transceiver stations 5 should not have any special features that cause a significant deviation of the trajectories of falling from a vertical.

After falling on the surface of the intermediate transceiver station 5 remain motionless.

The factor k2take into account the possible inaccuracy of the scatter intermediate transceiver stations 5, due to the influence of various factors.

There are two characteristic cases:

When the movement of the movable object 2 on the route, the duration of which is equal towhen both of conditions (19), (19 b). In each moment of time is only one of the specified conditions. In addition, due to the irreversibility of time, if it is condition (19 b), the condition (19) will not come. Thus, from the above it follows that the method can be carried out only in one way.

In the first case, (19) with the movable object 2 sbro the intermediate transceiver stations 5 do not exercise. The implementation of the method in this case considered above.

Consider the implementation of the method in the case of (19 b), which corresponds to the reset intermediate transceiver stations 5 with the movable object 2.

With a fixed object 1 transmit radio signals. Accept transferred from a fixed object 1 signals to the first (n=1) thrown from a moving object 2 intermediate transceiver station 5 and pass them. Accept transferred from the first (n=1) thrown from a moving object 2 intermediate transceiver station 5 radio signals for the second (n=2) reset with movable object 2 intermediate transceiver station 5 and pass them. Similarly carry out reception and transmission of radio signals using other discarded at a later time with the movable object 2 intermediate transceiver stations 5 (n=3,4,...,nmax) in the direction of transmission of the radio signals from the reset intermediate transceiver stations 5 in earlier times tnto reset at a later time tvwhere v>n. Take on the movable object 2, the radio signal transmitted from the last (n=nmax) thrown from a moving object 2 intermediate transceiver station 5.

Each intermediate transceiver station 5 starts to operate at the time of discharge and continues unctionality before and after contact with the underlying surface.

At lower intermediate transceiver stations 5 of their range and the range of radio broadcast stations 3 are reduced, but, in accordance with formulas (5)-(14), does not become less than the value of Rmin.

When the movement of the movable object 2 and discharged from the intermediate transceiver stations 5 occurs Doppler effect, the negative impact on the communication quality can be resolved by rational choice of the frequency characteristics of signals and devices transmitting station 3, a receiving station 4 and the intermediate transceiver stations 5.

When implementing the method in rough terrain to determine discharge points intermediate transceiver stations 5, you must take into account the information about the height field terrain. For this purpose, the movable object 2 can be used in the review and comparative systems of navigation (see Aeronautical radionavigation: a Handbook. Edited Ass. - M.: Transport, 1990,S. 8-9).

The underlying surface may be the surface of the water. In this case, when implementing the method, you must keep the intermediate transceiver stations 5 on the surface of the water after a fall. In addition, when specifying ranges of validity transmitting station 3 and the intermediate transceiver stations 5 is edue to take account of the agitation of the water surface and possible flow.

When the movement of the movable object 2 occurs, the vibration of its design (see, for example, Simulation and compensation of operational vibration. Edited Assurecare. - M.: Mashinostroenie, 1996, S. 10-12), which may lead to unauthorized inclusion on the intermediate transfer transceiver stations 5, is placed on the movable object 2, which will significantly reduce the noise immunity of various electronic means, placed on the movable object 2.

To improve noise immunity, various electronic means, placed on the movable object 2, the method involves creating an intermediate transceiver stations 5 on the movable

the object 2 of the blocks, each of which alone is capable of unauthorized radio transmission.

To create, to create is to give existence to bring to life; to produce, to make, to build, to erect; to invent, to produce something new, before unknown (see Dictionary of modern Russian literary language. - M.: Publishing house of the USSR Academy of Sciences, 1963, so-14, S. 151).

The duration of the time interval from the moment of creation of each intermediate transceiver station 5 on the movable object 2 until it is reset, it is desirable to reduce.

Intermediate transceiver station 5 can be created on the movable about who the target 2 using human or technical means (for example, when manual or automatic Assembly, respectively).

The term “operating frequency” understand the value of carrier frequency oscillations, Central or any other characteristic frequency band of radio signals. When this band of frequencies of the radio signals, corresponding to different operating frequencies do not overlap.

For an arbitrary route of movement of the moving object 2 set the operating frequencies of the radio signals transmitted at the same time with a fixed object 1 and each of the intermediate transceiver stations 5, thrown from a moving object 2 must be different:

When transmitting radio signals from a fixed object 1 on the movable object 2 given operating frequency fn’ radio signals received on the n-th reset with the movable object 2 intermediate transceiver station 5, except for the first (n=1) thrown from a moving object 2 intermediate transceiver station 5 is specified operating frequency fn-1radio signals transmitted from the (n-1)-th intermediate transceiver station 5, thrown from a moving object 2 at the time tnreset this (nth) intermediate transceiver station 5 in an earlier time tn-1:

The given work is her frequency radio signals received at the first (n=1) thrown from a moving object 2 intermediate transceiver station 5 is specified operating frequency faradio signals transmitted from a fixed object 1:

Specified operating frequencyradio signals received on the movable object 2 is specified operating frequencyradio signals transmitted from the last (n=nmax) thrown from a moving object 2 intermediate transceiver station 5, if the mobile object 2 is reset at least one intermediate transceiver station 5, or, otherwise, the specified operating frequency faradio signals transmitted from a fixed object 1 (the characteristic inherent in the prototype, and therefore it is included in the General part of the stated claims):

From the above it follows that the operating frequencies of the radio signals transmitted from a fixed object 1, and the radio signals received at the intermediate transceiver stations 5 and transmitted with them can be fixed.

However, when the reset with the movable object 2 regular (n = nmax) intermediate transceiver station 5 desired operating frequency f'bradio signals received n the movable object 2, must match the specified operating frequencyradio signals transmitted from a given (n=nmax) intermediate transceiver station 5.

In addition, for the implementation of radio communication between a fixed object 1 and a movable object 2 in the situation of (19), which have not dropped a single intermediate transceiver station 5, the specified operating frequency f’bradio signals received on the movable object 2 must coincide with the given operating frequency faradio signals transmitted from a fixed object 1.

All items and blocks included in the system represented in figure 1-6, are known and described in literature.

As the meter 11 speed on the movable object 2, which, in particular, low-flying aircraft, can be used Doppler velocity meter and drift angle or inertial velocity meter (see Aeronautical radionavigation: a Handbook. Edited Ass. - M.: Transport, 1990, S. 6-8).

As block 8 jobs can be used any known and described in the literature digital input devices (see, for example, Shevkoplyas BV Microprocessor structure. Engineering solutions. - M.: Radio and communication, 1993, S. 27).

As unit 6 controls can be used microprocess is rnie system with analog and digital inputs and outputs, composed of a clock generator, memory devices, analog-to-digital and digital-analog converters, and other devices (see, for example, Horowitz, Whill. Art circuitry. - M.: Mir, 1993, S. 294-295), not shown in figure 2.

Unit 9 reset is intended to effect a reset of the intermediate transceiver stations 5 with a specified interval in range.

As the conveyor 11 is applied belt conveyor with horizontal closed track (see, for example, the Conveyors. The Handbook. Under the General editorship Uairen. - L.: engineering, 1984, S. 4-9).

The conveyor 11 is designed to move the intermediate transceiver stations 5, placed in the supporting elements 13, in the direction of the hole 18.

The actuator 10 is designed for driving the belt 12 of conveyor 11 with a speed corresponding to the signals generated by the control block 6.

The actuator 10 is automated. Systems of automated control of electric drives provide a given angular velocity of the shaft of the motor in accordance with external control signals, which, depending on the type of motor and control system can be analog or digital (see, for example, Polytechnical dictionary. The editorial Board.: Awesomse (editor-in-chief) and others - 3rd ed., Rev. and supplementary) P “Great Russian encyclopedia”, 1998, S. 13). The design of the actuator is known (see, for example. The conveyors. The Handbook. Under the General editorship Uairen. - L.: engineering, 1984, S. 87-91).

The power of the signals generated by the control block 6, sufficient to control operation of the drive 10.

Construction of block 9 reset provides unrestricted movement of the intermediate transceiver stations 5 to the hole 18 when they are flushed.

The size of the holes 18 exceed overall dimensions of each intermediate transceiver station 5 in conjunction with the attached stowed parachute 15.

The number of bearing elements 13, which is in the initial position is equal to N the number of intermediate transceiver stations 5, is placed on the movable object 2.

The upper position of the bearing elements 13 corresponds to their position on the longitudinal axis of symmetry of the conveyor 11.

In the General case, in block 9 reset for loading the intermediate transceiver stations 5 can be applied well-known boot device (see, for example. The conveyors. The Handbook. Under the General editorship Uairen. - L.: engineering, 1984, S. 97-100).

The bearing elements 13 attached along the conveyor 11C interval equal to Δln.

Fixed in the supporting elements 13, the magnets 16 is a plate made of hard magnetic materials.

Split timing is e transceiver station 5 is placed after the establishment in the supporting elements 13 in the vicinity of the magnets 16, the magnetic field which provides the closure of the contacts of reed switches 45, however, is negligible in its impact on the movement of the intermediate transceiver stations 5 when they are flushed.

The first transmitting antenna 23, the first receiving antenna 24, the second receiving antenna 34 and the second transmitting antenna 43 are non-directional.

Construction of the intermediate transceiver stations 5 will be developed with consideration of impact loads that occur when confronted with the underlying surface (see, for example, V.B. have been Karpushin. Vibration and shock in radio. - M.: Soviet radio, 1971, S. 155-216). In this regard, the second receiving antenna 34 and the second transmitting antenna 43 of the intermediate transceiver stations 5 can be placed inside the high impact of the radio waves buildings, made for example of PTFE.

Parachutes 15 serve to reduce the speed of falling intermediate transceiver stations 5 and, consequently, to reduce the shock loads that occur when they collide with the underlying surface.

The parachutes 15 in the supporting elements 13 eliminates the tangling of legs 14 when the reset intermediate transceiver stations 5.

The physical and geometric characteristics of parachutes 15 (permeability, elasticity fabric dome, the shape and size of the dome, the presence and shape of the cutouts and other) determine basedfrom mass intermediate transceiver stations 5 and the required dynamics of parachutes 15 (see, for example, Wasiljev, Vnesheco, Whatamango. Dynamics of parachute systems. - Kyiv, Odessa: “high school”. Head publishing house, 1985). Design and characteristics of parachutes 15 assume their automatic disclosure of resetting the intermediate transceiver stations 5.

The source of 19 messages can serve as a device to sequentially output the digital signals, and the receiver 31 messages - device serial input digital signals (see, for example, Digital and analog integrated circuits. The Handbook. Edited Svechenovskoj. - M.: Radio and communication, 1990, S. 151).

The voltage transmitting station 3 generates the power supply system stationary object 1, not shown in figure 1-6.

The supply voltage receiving station 4, block 8 job, meter 7 speed, unit 6 control and actuator 10 produces an onboard power supply system of a moving object 2, not shown in figure 1-6.

Each of the battery 46 is designed to generate a voltage corresponding to the intermediate transceiver station 5. The capacity of the battery 46 is set on the basis of the power consumption of the corresponding intermediate transceiver station 5 and the duration of the operation.

The frequency of the radio transmission station 3 and the intermediate receiving erediauwa stations 5 are specified operating frequencies of the radio signals, transmitted respectively from the transmitting station 3 and the intermediate transceiver stations 5.

The frequency of reception of radio receiving station 4 and the intermediate transceiver stations 5 are specified operating frequencies of the radio signals received respectively at the receiving station 4 and the intermediate transceiver stations 5.

The terms “transmission frequency” and “frequency of use” of any device are generally accepted (see, for example, Gromakov Y.A. Standards and mobile radio systems. ): Eco-Trends, 2000, S. 22).

The term “controlled oscillator is generally accepted (see, for example, theoretical foundations of radar. Edited Vaitulevich. - M.: Soviet radio, 1978, S. 358). The oscillation frequency generated by the controlled oscillator is determined by the voltage acting on its control input. In this case, the controllable oscillator is controlled oscillator voltage. Generators driven by voltage, are known and described in the literature devices (see, for example, Horowitz P., hill. U. Art circuitry. In 3 volumes: T.I. Lane. from English. - 4th ed. revised and enlarged extra - M.: Mir, 1993, S. 308).

Consider the implementation of the method using the system presented in figure 1-6.

The movable object 2 is in the initial paragraph On your route. In the initial paragraph Of the Mar is the root of the movement of the moving object 2 is the stationary object 1.

Each intermediate transceiver station 5 can be created, in particular, on the movable object 2 of the transceiver block 32 and block 33 power just before it is reset. Initially, these blocks are placed on a movable object 2 separately from each other, for example, in various compartments. The probability that the result of vibration impacts these blocks are interconnected as needed and will thus create unauthorized joined to the intermediate transfer transceiver station 5, is practically zero.

In the described implementation of the method of intermediate transceiver station 5 created on the movable object 2 to the beginning of the last movement on the route. When you do this manually or by using technical means attached unit 33 power to the transceiver unit 32. The positive pole of the battery 46 block 33 power connect, as shown in Fig.6, through the normally closed contacts of the electromagnetic relay 44 to the positive terminal of the power transmitting-receiving unit 32, a negative power terminal of which is connected to the negative pole of the battery 46 of the block 33 of the power supply. The thus created intermediate transceiver station 5 are placed in the respective bearing elements 13 of the conveyor 11.

Then to the intermediate transceiver stations 5, size is placed in the supporting elements 13 of the conveyor 11, attach by means of straps 14 parachutes 15, arranged in the respective bearing elements 13.

The conveyor 11 is shown in an initial state in which the bearing element 13, closest to the hole 18, must pass the path equal to the lb minto the point where there is separation of the corresponding intermediate transceiver station 5 from the support member 13 and begins her fall.

This is the ratio of:

The gain of the first low-noise amplifier 26 and second low noise amplifiers 36 are set so that the sensitivity of the receiving station 4 and the intermediate transceiver stations 5 was equal to Rprmin.

The gain of the first amplifier 22 and second power amplifiers 42 power set so that the power of radio signals transmitted from a fixed object 1 and the intermediate transceiver stations 5, was equal to R[Izl].

Then taking into account expressions (5)-(14) the range of radio broadcast stations 3 and intermediate transceiver stations 5 is equal to Rmin.

In block 8 of the job, enter values in the ranges Rminsteps intermediate transceiver stations 5.

Unit 6 reads the code from the outputs of block 8 of the job, containing information about the specified values of the distances Rminactions, and what determines the formulas (15), (16) the value of db minand Δdh.

Unit 6 control generates the control signals, by which the oscillation frequency generated by the controlled oscillator 28, takes the value ofmoreover, in accordance with the formula (23):

where fbn- intermediate frequency receiver station 4;- receiving frequency intermediate transceiver station 5, located in the bearing element 13 located at the nearest distance from the hole 18 (early reset this intermediate transceiver station 5 will be first cleared with the movable object 2).

The contacts of the reed switch 45 of each of the intermediate transceiver stations 5, placed in the supporting elements 13, are closed in the magnetic field of the magnet 16. The conclusions of the winding of an electromagnetic relay 44 applied voltage of battery 46. The contacts of the electromagnetic relay 44 are open. Transceiver unit 32 is de-energized. Intermediate transceiver station 5 does not function.

At timethe movable object 2 starts to execute from a common start point Of the vertical height hb maxand then performs a horizontal flight at a height of hb maxc constant velocity Vbin the ol the x-axis in the direction of in the direction of increasing values of X.

The block 6 management continuously reads from the outputs of the meter 7 speed with the speed of movement of the moving object 2 and using formulas (17), (18) determines the points in time of the reset intermediate transceiver stations 5.

Let us assume that the acceleration of a moving object 2 to a speed of Vbwith the beginning of the horizontal movement is negligible. If the acceleration cannot be neglected, the time tb minreset the first intermediate transmitting-receiving station 5 is determined from the solution of the equation

At timecomplete the lifting of the rolling object to a height of 2 hb maxunit 6 control generates the control signal by which the actuator 10 causes the belt 12 of conveyor 11 in the moving speed:

The movement of the tape 12 on the longitudinal axis of symmetry of the conveyor 11 is in the direction of the hole 18 (figure 2).

The time during which the speed of the tape 12 reaches the value Ub, is negligible.

Before time tb minfirst remove the movable object 2 on object 1 at a distance of db minwith the movable object 2 reset intermediate transceiver stations 5 is not carried out (case 19, a).

In this case, the transmission radio signal with nebody the tion of the object 1 on the movable object 2 is as follows.

The binary sequence of pulses from the output of the source 19 message transmitting station 3, located on stationary object 1, is fed to the first input of the first Converter 20 frequency. On its second input receives the oscillation frequency fagenerated by the first local oscillator 21. The value of frequency faasked by formula (25). Amplitude-shift keyed signal with the output of the first Converter 20 frequency is fed to the input of the first amplifier 22 power, the output of which is fed to the input of the first transmitting antenna 23. The first transmitting antenna 23 transmits at a given operating frequency fathe corresponding signal.

The first receiving antenna 24 a receiving station 4, is placed on the movable object 2 receives the radio signal transmitted by a radio transmitting station 3. The output signal from the first receiving antenna 24 to the input of the first bandpass filter 25, which provides selectivity image channel (see, for example, a Receiving device. Edited Vietrova. - M.: Soviet radio, 1974, S. 235). The output signal of the first bandpass filter 25 is fed to the input of the first low-noise amplifier 26, the output of which is fed to the first input of the second inverter 27 frequency. On its second input receives the oscillation frequencyvyrabatyvat is managed by the generator 28. The value of the frequency f’bthe received radio signals is set by the formula (25). The signal of the intermediate frequency fbnthe output of the second inverter 27 frequency is fed to the input of the first amplifier 29 intermediate frequency, the output of which is fed to the input of the demodulator 30. The binary sequence of pulses corresponding to the transmitted message arrives from the output of the demodulator 30 to the input of the receiver 31 messages.

The value of the intermediate frequency receiving station 4 and the intermediate transceiver stations 5 ask given the known limitations (see, for example. A receiving device. Edited Vietrova. - M.: Soviet radio, 1974, S. 240).

At timeas a result of movement of the belt 12 of conveyor 11 closest to the hole 18 of the bearing element 13 occupies a position in which there is separation of the corresponding intermediate transceiver station 5 from the support member 13 and begins its decline. This is reset the first intermediate transceiver station 5 with the movable object 2. (Until reset with the movable object 2 of the following intermediate transceiver station 5 this intermediate transceiver station 5 is at the same time last reset with the movable object 2 intermediate transceiver station 5.)

If this is m contacts of the reed switch 45 this intermediate transceiver station 5 is open. The contacts of the electromagnetic relay 44 take normally closed. On the transmitting-receiving unit 32 receives a supply voltage. The intermediate transceiver station 5.

Simultaneously, the control block 6 generates the control signal, whereby the oscillation frequency generated by the controlled oscillator 28, takes the value ofmoreover, in accordance with the formula (23):

After some interval of time determined, in particular, the mass of the intermediate transceiver station 5 and aerodynamic characteristics of its design, the parachute opens 15, attached to this intermediate transceiver station 5 loops 14, which causes a decrease in the speed of its fall.

Radio transmission from a fixed object 1 on the movable object 2 is as follows.

Radio transmitting station 3 transmits at a given operating frequency fathe radio signal. In this work blocks transmitting station 3 proceeds as described above.

The second receiving antenna 34 of the first (being the last) thrown from a moving object 2 intermediate transceiver station 5 receives the radio signal transmitted by a radio transmitting station 3. The output signal from the second receiving antenna 34 post is Paeth at the input of the second bandpass filter 35, providing selectivity image channel. The output signal from the second bandpass filter 35 is fed to the input of the second low-noise amplifier 36, the output of which is fed to the first input of the third inverter 37 frequency. On its second input receives the oscillation frequencygenerated by the second local oscillator 38 (down conversion). The signal of the intermediate frequency fn pwith an output of the third inverter 37 frequency is fed to the input of the second amplifier 39 intermediate frequency, the output of which is fed to the first input of the fourth inverter 40 frequency. On its second input receives the oscillation frequencyproduced by the third local oscillator 41 (up conversion). Amplitude-shift keyed signal with the output of the fourth inverter 40 frequency is fed to the input of the second amplifier 42 power, the output of which is fed to the input of the second transmitting antenna 43. The second transmitting antenna 43 passes at a given operating frequencythe corresponding signal.

Radio receiving station 4 receives the radio signal transmitted from the past (being the first) thrown from a moving object 2 intermediate transceiver station 5. In this work blocks the receiver mill is AI 4 proceeds in a manner similar to the above, moreover, the frequency of the oscillations generated by the controlled oscillator 28 as well; the value of the operating frequency fb’ radio signals received on the movable object 2, is set by the formula (28).

From the moment of time tb minfirst remove the movable object 2 on object 1 at a distance of db minin the uniform motion of the belt 12 of conveyor 11 with a speed Ubwith the movable object 2 is reset intermediate transceiver stations 5 with an interval of distance, equal, as follows from formulas (27), Δdn.

Thus at time tnreset the next n-th intermediate transceiver station 5 unit 6 control generates the control signal, whereby the frequencyvibrations generated by the controlled oscillator 28, takes a value in accordance with formula (23).

After some interval of time determined, in particular, the mass of the n-th intermediate transceiver station 5 and aerodynamic characteristics of its design, the parachute opens 15, attached to this intermediate transceiver station 5 loops 14, which causes a decrease in the speed of its fall.

Enable reset intermediate transceiver stations 5 in the breaking of the contacts of gerco the s 45 is the same as that described above.

Consider the transmission of radio signals from a fixed object 1 on the movable object 2 in the case when a mobile object 2 resetintermediate transceiver stations 5.

Radio transmitting station 3 transmits at a given operating frequency fathe radio signal. In this work blocks transmitting station 3 proceeds as described above.

First flushed with movable object 2 intermediate transceiver station 5 receives the radio signal transmitted from a fixed object 1, and transmits it. In this work blocks this intermediate transceiver station 5 proceeds as described above, the frequency of the oscillations generated by the second local oscillator 38, equalthe oscillation frequency generated by the third local oscillator 41, equalspecified operating frequencies of the radio signals received by this intermediate transceiver station 5 and transmitted with equal respectively

The second reset with the movable object 2 intermediate transceiver station 5 receives the radio signal transmitted from the first thrown from a moving object 2 intermediate transceiver station 5, and transmits it. In this work blocks this intermediate primaparous the th station 5 proceeds in a manner similar to the above, moreover, the frequency of oscillations generated by the second local oscillator 38, equalthe oscillation frequency generated by the third local oscillator 41, equalspecified operating frequencies of the radio signals received by this intermediate transceiver station 5 and transmitted with equal respectively

Similarly carry out reception and transmission of radio signals using other discarded at a later time with the movable object 2 intermediate transceiver stations 5 (n=3,4,...,nmax) in the direction of transmission of the radio signals from the reset intermediate transceiver stations 5 in earlier times tnto reset at a later time tvwhere v>n.

The frequency of the oscillations generated by the second local oscillator 38 n-th intermediate transceiver station 5, equalthe oscillation frequency generated by the third local oscillator 41, equalspecified operating frequencies of the radio signals received by this intermediate transceiver station 5 and transmitted with equal respectively

Radio receiving station 4 receives the radio signal transmitted from the last reset with the movable object 2 Prohm is filling transceiver station 5. In this work blocks radio receiving station 4 proceeds as described above, and the value of the oscillation frequency generated by the controlled oscillator 28 as wellthe value of the operating frequency of the radio signals received on the movable object 2, as well

The range of radio broadcast stations 3 and intermediate transceiver stations 5 can theoretically have a very small set of values. In this regard, even at large distances between the fixed object 1 and a movable object 2 is the volume of the geometric space occupied by the communication system may be small.

In the example below, the values of parameters satisfying applied in the description of the formulas:

N=10;

δ≤0.1 m; k1=k2=1;

Rmin=250 m; hmin=0.1 m; hmax=200 m; Pprmp=10-13W; R[Izl]=4 W;

db min=Δdn=Rmin=250 m;

lb min=Δln=0.25 m;

Vb=2 m/c; Ub=0.0034 m/c;

type of modulation - amplitude shift keying;

the baud rate 512 bps;

frequencies f’breceiving a receiving station 4 when the next reset nmaxintermediate transceiver stations 5 with the movable object 2, and znachenieto send and receive intermediate transceiver stations 5 are summarized in table 1.

Thus, the implementation of radio communication between the mobile object and a stationary object located at the initial point of the route of movement of the moving object, using discharged from the movable object low intermediate transceiver stations, are equipped with omnidirectional antennas, and discharged intermediate transceiver station pre-create on a movable object, can improve weight and dimensions transceiver stations stationary and moving objects, to increase the robustness of various electronic funds placed on the stationary and movable objects, to improve electromagnetic safety of people on the immovable and movable objects, to reduce the volume of the geometric space occupied by the communication system, and consequently, to improve the efficiency of the way in the simultaneous operation of multiple radio systems.

Table 1
Intermediate transceiver station 5Radio receiving station 4
nReception frequency fnMHzFrequency per the villas f nMHzReception frequency f’bMHZ for nmax=n
---100.2
1100.2102.2102.2
2102.2102.4102.4
3102.4102.6102.6
4102.6102.8102.8
5102.8103.0103.0
6103.0103.2103.2
7103.2103.4103.4
8103.4103.6103.6
9103.6103.8103.8
10103.8104.0104.0

1. Way radio communication between the mobile object and a stationary object located at the initial point of the route of movement of the moving object, namely, that transmit at a given operating frequency of the radio signals from a stationary object are specified operating frequencies of the radio signals on a movable object, characterized in that since the time of the first removal of a moving object from a stationary object at a distance determined is passed on specified ranges of validity radio transmitting station, posted on stationary object, and the intermediate transceiver stations, rolling object discharge established on the movable object intermediate transceiver stations at intervals along the range defined by the given ranges of the transmitting steps and intermediate transceiver stations, with radio transmission from a fixed object on the movable object is that accept transferred from a fixed object signals at first thrown from a moving object intermediate transceiver station and transmit them, accept transferred from the first thrown from a moving object intermediate transceiver station radio signals on the second thrown from a moving object intermediate transceiver station and transmit them, in the same way carry out reception and transmission of radio signals using other discarded at a later time with the rolling object intermediate transceiver stations in the direction of transmission of the radio signals from the reset intermediate transceiver stations in earlier times to reset at a later time, take on a movable object, the radio signals are radio signals transmitted by the latter thrown from a moving object intermediate transceiver hundred is tion.

2. The method according to claim 1, characterized in that when transmitting radio signals from a fixed object on the movable object specified operating frequency of the radio signals received at each thrown from a moving object intermediate transceiver station, except for the first one thrown from a moving object intermediate transceiver station is specified operating frequency of the radio signals transmitted from the intermediate transceiver station, thrown from a moving object closest to the time of reset of this intermediate transceiver station earlier point in time, the specified operating frequency of the radio signals received at the first thrown from a moving object intermediate transceiver station is specified operating frequency of the radio signals transmitted from a fixed object specified working frequency of the radio signals received on the movable object is specified operating frequency of the radio signals transmitted from the past thrown from a moving object intermediate transceiver station.



 

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