Repair team warning device

FIELD: railway transport.

SUBSTANCE: proposed repair team warning device contains "n" navigational satellites, dispatcher station consisting of receiving antenna, satellite signals receiver, computing unit to determine corrections to radio navigational parameter for signals from each navigational satellite, modulator, transmitter, transmitting antenna and computer of standard values of radio navigational parameters, movable object installed on locomotive and consisting of satellite signals receiving antenna, satellite signals receiver, computing unit for determining location of movable object, first receiving antenna, first receiver, first demodulator, matching unit, modulator, transmitter, transmitting antenna, second receiving antenna, second receiver and second demodulator, and warming device consisting of receiving antenna, receiver, demodulator, computing unit for determining distance between movable object, warning device, modulator, transmitter, transmitting antenna, satellite signals receiving antenna, satellite signals receiver and control unit.

EFFECT: improved safety of track maintenance and repair teams in wide zone of operation.

6 dwg

 

The device relates to techniques for railway transport, in particular to a device alert maintenance crews.

A device for warning of the approach of trains containing the receiver connected to the rails and connected to the processing unit of the signal element and the alarm unit. The principle of operation of this device is based on capturing the receiver elastic acoustic waves that are generated during the passage of the wheels over the joints as dynamic shock [1].

The disadvantages of this device is the possibility of receiving a false signal in the form of elastic acoustic oscillations and the low accuracy of determination of the distance to the train.

A device alert maintenance crews on the path of the approaching train, containing the track relays, encoder, tone generator frequency, the output of which through the communication line connected to the input of the established on the site of the receiving block and the block signal signaling [2].

The disadvantage of this device is the low reliability because of the possibility of damage to the line.

You know the automatic warning of trains to the site, where track work containing installed on the site of the work, the laser generator and the receiver of the reflected signal, which includes a photocell and fil is R, associated with the actuating elements of the alarm system, connected to a controlled power source that is connected to the unit changes modes alarm, and installed in the control zone of approaching trains reflectors [3].

The disadvantage of this device alerts is the inability to apply in areas where a safe area for crews is not in line of sight for this device.

The known method of controlling the position of moving objects, such as moving trains, and the system for its implementation (options) [4]. The method can be implemented using a system which contains a control point For moving objects, n navigation satellites. Equipment operating on the control center, contains the first receiving antenna connected to the receiver of the satellite signals, connected in series, a second receiving antenna, a receiver, a demodulator, a computing unit, modulator, transmitter and transmitting antenna, a control unit, connected with the computing unit, connected to the output of the receiver to the satellite signals. Equipment operating on each of the moving objects, contains the first receiving antenna connected to the receiver of the satellite signals, connected in series, a second receiving antenna, p is jamnik, the demodulator, computing unit, modulator, transmitter and transmitting antenna, a control unit, connected with the computing unit, an input connected to the output of the receiver to the satellite signals, and output - control input of the receiver to the satellite signals.

The disadvantage of this device is the inability of the application to alert maintenance crews.

The basis of the invention is to create a device that would alert crews of approaching vehicles.

The problem is solved in that the device alerts crews containing n navigation satellites, control station, consisting of series-connected receiving antenna, a receiver of satellite signals, computing unit, modulator, transmitter and transmitting antenna of the transmitter parameter connected with the second input of the computing unit, the movable object, consisting of series-connected receiving antenna of the satellite signals, the receiver of the satellite signals and computing unit, connected in series, the first receiving antenna, a first receiver and the first demodulator, the output of which is connected to a second input of the computing unit, the connection unit, an input connected to the first output of the computing block, and Ihad the connection unit is connected to the control system of the locomotive, according to the invention additionally contains a movable object connected in series modulator connected to the second output of the computing unit, the transmitter and transmitting antenna, connected in series, a second receiving antenna, a second receiver and a second demodulator, the output of which is connected to the third input of the computing unit, the alarm device containing connected in series receiving antenna, a receiver, a demodulator, a computing unit, modulator, transmitter and transmitting antenna connected in series receiving antenna of the satellite signals and satellite signals, the output of which is connected to a second input of the computing unit, a control unit, connected with the computing unit.

The device is illustrated by the attached drawings, on which: figure 1 - structural diagram of the device alert maintenance crews; figure 2 - block diagram of the algorithm computing unit of a moving object; figure 3 - block diagram of the algorithm computing unit alarm; 4 is a structural diagram of a simplified version of the notification device repair crews; 5 is a block diagram of the algorithm computing a simplified block signalling devices; 6 is a diagram of a variant of the computational block.

The signal maintenance teams(figure 1) contains n navigation satellites l 1,l2,...,ln, control point 2, containing connected in series receiving antenna 3 satellite signals, the receiver 4 of the satellite signals, the computing unit 5, a modulator 6, a transmitter 7 and a transmitting antenna 8 and the transmitter parameter 9, the output of which is connected with the computing unit 5, the movable object 10, which includes connected in series receiving antenna 11 of the satellite signals, the receiver 12 of the satellite signals, the computing unit 13 and the connection unit 14, connected in series, the first receiving antenna 15, the first receiver 16 and the first demodulator 17, the output of which is connected to a second input of the computing unit 13, connected in series modulator 18, an input connected to the second output of the computing unit 13, the transmitter 19 and the transmitting antenna 20, connected in series, the second reception antenna 21, a second receiver 22 and the second demodulator 23, the output of which is connected to the third input of the computing unit 13, and the alarm device 24 containing connected in series receiving antenna 25, a receiver 26, a demodulator 27, computing unit 28, the modulator 29, the transmitter 30 and the transmitting antenna 31, the control unit 32, which is connected with the computing unit 28, and connected in series receiving antenna 33 of the satellite signals, the receiver 34 sputnikovaya, connected to a second input of the computing unit 28.

The principle of operation of this device is as follows.

Control point 2 (figure 1) antenna 3 receives signals from navigation satellites l1-lndetermines radionavigation parametersfor each of the satellites. With a receiver of satellite signals 4 measured values radionavigation parametersfed to the input of the computing unit 5, a second input connected to the transmitter parameter 9, the determining reference values radionavigation parameters R1(3)-Rn(3)on the basis of the reference coordinates of the phase center of the antenna 3, XCTU, YCTU, ZCTUposition XAF-Xapp, YAF-Yapp, ZAF-Zappeach of the satellites l1-ln.

Computing unit 5 generates values amendments radionavigation parameters for each of the satellites in accordance with the algorithm of [5, str]:

where i=1,...,n is the current number of the satellite.

From the output of the computing unit 5 signals that contain information about the number of a satellite, the time for receiving the navigation signal, the amendments to the radionavigation parameters to each satellite ΔR1-ΔRncome on modulate the p 6. From the output of the modulator 6, the signals are sent to the transmitter 7, which is converted, amplified and radiated into space by the antenna 8.

Simultaneously, the signals of the navigation satellites l1-lnare received by the antenna 11 connected to the input of the receiver 12 of the satellite signals, making the definition of navigation parameters. From the output of the receiver 12 satellite signals from the satellites, the time of reception of signals and the values of the navigation parameters supplied to the computing unit 13.

The signals of the control point 2 are received by the antenna 15 of the movable object 10, is fed to the input of the first receiver 16, which allows amplification, conversion, and the selection signals of the control point 2. From the output of the receiver 16, the signals fed to the input of the first demodulator 17, emitting signals from the number information of the satellite, the time of signal reception and amendments radionavigation settings ΔR1-ΔRngenerated by the computing unit 5 of the control point 2.

Computing unit 13 performs cyclic processing of input data in accordance with the block diagram of the algorithm is shown in figure 2.

After entering the information of the blocks 17 and 12 computing unit 13 adjusts the navigation parameters measured by the receiver 12 satellite signals in accordance with [5, str]:

As a result of this correction to get accurate values radionavigation parameters R1(11)-Rn(11)that use to calculate the exact coordinates of the antenna 11. In the case of use as navigation parameters measurements of pseudorange to determine the coordinates of the antenna can be used the algorithm described, for example in [5, str-231].

The exact values of the coordinates of the movable object 10 are received in the interface block 14 and then fed into the control system of the locomotive, and is transmitted through the modulator 18 in the transmitter 19, which is converted, amplified and radiated into the space of the transmitting antenna 20. The signal radiated by the transmitting antenna 20, is received by the antenna 25 of the alarm device 24 and to the input of the receiver 26. After amplification and conversion of the signal in the receiver 26 in the demodulator 27 is the information about the coordinates, the speed of the engine and the transmission time of a signal. Simultaneously, the signals of the navigation satellites l1-lnare received by the antenna 33 is connected to the input of the receiver of the satellite signals 34 which define navigation options. From the output of the receiver satellite television with flat screen the output signals 34 information about the numbers of satellites, time of reception of signals and the values of the navigation parameters supplied to the computing unit 28. The coordinates of the location of the signaling device 24 is calculated in the computing unit 28, where also on the known coordinates of the movable object 10 calculates the distance between the movable object 10 and the alarm device 24. The result of the calculation is given on the indicator control unit 32. The indicator is given information about the estimated time of arrival of the movable object 10 to the place of repair with the known speed of a mobile object 10, the distance from the moving object 10 to a critical point of convergence, which depends on known parameters. When the correlation between the calculated and critical values recorded in the computing unit 28, the control unit 32 signals danger, for example, an audio message recorded in the control unit 32, since the critical point of convergence, there is the danger to the lives of workers.

Information computing unit 28 about the coordinates of the signaling device 24, the estimated time of arrival of the movable object 10 to the place of repair with the known speed of a mobile object 10, the distance from the moving object 10 to a critical point of convergence, passing through the modulator 29 is converted and amplified in the transmitter 30 and emits the I in the space of the transmitting antenna 31. The signal radiated by the antenna 31, is received by the antenna 21 of the mobile object 10, is amplified and converted by the second receiver 22. Information extracted from the signal of the second demodulator 23, enters the computing unit 13. In the computing unit 13 information about the estimated time of arrival of the movable object 10 to the place of repair with the known speed of the locomotive, the coordinates of the alarm device 24 is compared with the allowable values and exceeding them through the interface unit 14 is supplied to the control system by the engine and generates a message about the situation on the route of the locomotive. Equipment movable object 10 is installed on the locomotive apparatus signaling device 24 is located at the foreman maintenance crews.

Computing unit 28 performs cyclic processing of input data in accordance with the block diagram of the algorithm is shown in figure 3.

The variant of the notification device repair crews (figure 4), which is characterized by ease of implementation of the signaling device 24. When this alarm device 24 is connected in series receiving antenna 25, a receiver 26, a demodulator 27, computing unit 28, the modulator 29, the transmitter 30 and the transmitting antenna 31, a memory unit 35, the output of which is connected to a second input of the computing unit 28, the driven unit is I 32, connected with the computing unit 28. A distinctive feature of the simplified version is the lack of a receiving antenna 33 and receiver of satellite signals 34 in the alarm device 24. Coordinates maintenance crews recorded before working in the memory unit 35. This option works the notification device repair crews in a similar manner as described in figure 1.

The signal of the coordinates, the speed of the engine and transmission time of the signal radiated by the transmitting antenna 20 on the movable object 10, is received by the antenna 25 and to the input of the receiver 26. After amplification and conversion of the signal in the receiver 26 in the demodulator 27 are coordinates, the speed of the engine and the transmission time of the signal and fed to the computing unit 28. In the computing unit 28 calculates the distance between the locomotive and repair team. The results obtained are given in the control unit 32 and delivered to the indication, and, passing through the modulator 29 and the transmitter 30, are radiated into space by the antenna 31. Radiated signals on the movable object 10 are received by the antenna 21 and served in the computing unit 13. This information is processed by the computing unit 13 and the interface block 14, the message about the situation on the route of a locomotive.

Computing unit 28 in this variant which performs cyclic processing of input data in accordance with the block diagram of the algorithm shown in figure 5.

Computing unit 28, 13 may be implemented as elements of "hard" (non-programmable) logic, and based on a microprocessor on a model structure, as described, for example, in [6, str].

Structural diagram of a variant of the computing unit 28, 13 is shown in Fig.6. The decoder 36 provides a choice of DC 37 or 38 operational storage elements that store programs, constants, or current information, respectively. Microprocessor module 39 performs the processing and exchange of information in accordance with the flowchart (figure 3) and is associated with blocks 36-38, 40 bus address (SHA) and data bus (SM) with blocks 37, 38, 41-44, may have control outputs with signals "read" and "write" to control a constant 37 and 38 operational storage elements, respectively, output - for example, to display information on the bus SM in blocks 29, 32, "input" - to enter information in the microprocessor module 39 via bus from SM blocks 27, 34, input "interrupt request" to enter information in the microprocessor module 39 of the blocks 32. The signal handling (input) from external blocks 27, 32 to the computing unit 28 and the signal conversion (output) from the computing unit 28 to the outer block 29, 32 is formed by decoding the code address of the corresponding register in the decoder 40 and the conjunction of its input is the yaschih signals with signal "input" elements And 45-46 and signal output elements And 47-48. Output signals of the elements And 45-46 recording information from external blocks 27, 34 registers 41-42. Output signals of the elements And 47-48 recording information from the microprocessor module 39 in the registers 43-44.

When implementing a computing unit 28, 13 on the basis of microprocessor C microprocessor module 39 consists of three integrated circuits - CPU To 580 IR 80, the system controller To 580 VK 88, a clock generator For GF 580 24.

Thus, the use of this device alerts crews allows you to determine the location of the train relative to the maintenance teams with less error in comparison with known devices (the error is 20-30 m [5]) and, consequently, improve the safety of work crews in a wide work area.

Literature

1. AC NO. 1066868 THE USSR. Device for warning of approaching trains. / Publ. 1984, bull. No. 2.

2. AC NO. 1220998 THE USSR. Device alert maintenance crews on the path of the approaching train. / Pivovarchik NI, Tarasov SCI and other Publ. 1986, bull. No. 12.

3. AC NO. 914383 THE USSR. The automatic warning of trains to the area with track work. / Levin, B.A., Shevandin M.A. Publ. 1982, bull. No. 11.

4. RF patent №2115140. The method of controlling the position of moving objects, such as moving train, the train is, and system for its implementation (options). / Vasikin A.I., Kokorin VI, CMYK - and other Publ. 1998, bull. No. 19.

5. Network satellite navigation system./ Edited Wasserchemie. 2nd ed., revised and enlarged extra - M.: Radio and communication, 1993, 283-288.

6. Balashov, H.E., Pusenkoff A.I Microprocessors and microprocessor systems. - M.: Radio and communication, 1990.

Device alert crews of the approach of rolling stock containing n navigation satellites, control station, consisting of series-connected receiving antenna, a receiver of satellite signals, a computing unit for determining the corrections to the radionavigation parameters for each of the navigation satellites, modulator, transmitter and transmitting antenna, and transmitter reference values radionavigation parameters connected with the second input of the computing unit for determining the corrections to the radionavigation parameters for each of the navigation satellites, the mobile object installed on the locomotive and consisting of series-connected receiving antenna of the satellite signals, the receiver of the satellite signals, and a computing unit for determining the location of a moving object, series-connected first receiving antenna, a first receiver and the first demodulator, the output of which is connected to the n second input of the computing unit to determine the location of a moving object, the connection unit, an input connected to the first output of the computing unit to determine the location of a moving object, and the connection unit is connected to the control system of the locomotive, characterized in that it further comprises an alarm device, comprising sequentially connected receiving antenna, a receiver, a demodulator, a computing unit to determine the distance between the movable object and alarm device, a modulator, a transmitter and a transmitting antenna connected in series receiving antenna of the satellite signals and satellite signals, the output of which is connected to a second input of the computing unit to determine the distance between the movable object and alarm device, a control unit connected to the second output and the third input of the computing unit to determine the distance between the movable object and alarm device, and the mobile object entered modulator connected in series, connected to a second output of the computing unit to determine the location of a moving object, the transmitter and the transmitting antenna, connected in series, a second receiving antenna, a second receiver and a second demodulator, the output of which is connected to the third input of the computing unit to determine IU is topologize movable object, in the alarm device computing unit to determine the distance between the movable object and alarm device calculates its coordinates and the known coordinates of a moving object calculates the distance between the movable object and the alarm device, the result of this calculation, the control unit signals the convergence with the dangerous critical point of convergence of the rolling stock and space renovations.



 

Same patents:

FIELD: radio engineering, applicable in receivers of signals of satellite radio navigational systems.

SUBSTANCE: the micromodule has a group of elements of the channel of the first frequency conversion signals, group of elements of the first channel of the second frequency conversion of signals, group of elements of signal condition of clock and heterodyne frequencies and a group of elements of the second channel of the second frequency conversion signals.

EFFECT: produced returned micromodule, providing simultaneous conversion of signals of standard accuracy of two systems within frequency ranges.

4 dwg

FIELD: aeronautical engineering; determination of aircraft-to-aircraft distance.

SUBSTANCE: aircraft-to-aircraft distance is determined by the following formula: where position of first of first aircraft is defined by azimuth α1, slant range d1, altitude h1 and position of second aircraft is determined by azimuth α2, slant range d2 and altitude h2. Proposed device includes aircraft azimuth indicators (1,4), flying altitude indicators (2,5), indicator of slant range to aircraft (3,6), adders (7, 14, 15, 19), multiplication units (8-12, 16, 18), cosine calculation unit 913), square root calculation units (17-20) and indicator (21).

EFFECT: avoidance of collision of aircraft; enhanced safety of flight due to determination of true aircraft-to-aircraft distance with altitude taken into account.

2 dwg

FIELD: the invention refers to radio technique means of determination of a direction, location, measuring of distance and speed with using of spaced antennas and measuring of a phase shift or time lag of taking from them signals.

SUBSTANCE: the proposed mode of determination of coordinates of an unknown transmitter is based on the transmitter's emitting of a tracing signal to the satellite, on receiving of signals of an unknown transmitter and legimite transmitters which coordinates are known, on forming a file of clusters, on selection of the best clusters out of which virtual bases are formed for calculating coordinates of legimite and unknown transmitters according to the coordinates of legimite transmitters and the results of calculation of their coordinates one can calculate mistakes of measuring which are taken into account at calculating the coordinates of the unknown transmitter.

EFFECT: increases accuracy of determination of coordinates of an unknown transmitter in the system of a satellite communication with a relay station on a geostationary satellite.

2 dwg, 1 tbl

The invention relates to receivers, which provide a measure of the information of the location of the satellites and are used in the detection system (GPS)location

The invention relates to the field of satellite navigation and can be used to determine the state vector (coordinates, speed and time) of users on the signals of two satellite navigation systems (SNS) GLONASS (Russia) and GPS NAVSTAR (USA)

The invention relates to the field of satellite navigation and can be used in tracts of primary information processing voltage signals of global navigation satellite systems GPS NAVSTAR (USA) and GLONASS (Russia)

The invention relates to a method of Autonomous lowering the limits of detection and tracking of bearing taken on orbit receiver equipped with orbital navigation system, inside or outside the specified receiver, the latter has at least one ring phase-locked loop

The invention relates to radio engineering, in particular, to a radionavigation systems determine the location of objects

The invention relates to methods and means of identification

The invention relates to radar systems and can be used in development of advanced radar or their modernization

The invention relates to the field of radar, in particular to radar stations (RLS) lighting conditions

The invention relates to electrical engineering and can be used for identification of mobile objects (e.g., aircraft) and their recognition

Passive transceiver // 2178897
The invention relates to radar systems and is designed for transmission of identification signals of the transmission object and messages from external sources of information through active radar to the consumer

Passive transceiver // 2174239
The invention relates to radar systems and is intended for transmitting signals recognition and identification of objects surveillance radar

The invention relates to radio engineering, in particular to radar, and can be used in atmospheric and meteorological radiosondes missiles for measuring range

Frequency detection // 2156497

The invention relates to radar systems and more specifically to a radar methods of measuring the distance to a source of secondary radiation with nonlinear transformation of the probing signal
Up!