Head-end station of system for radio communications with mobile objects

FIELD: radio communications engineering; digital communications in computer-aided ground-to-air data exchange systems.

SUBSTANCE: proposed system designed to transfer information about all received messages irrespective of their priority from mobile objects to information user has newly introduced message processing unit, group of m modems, (m + 1) and (m + 2) modems, address switching unit, reception disabling unit whose input functions as high-frequency input of station and output is connected to receiver input; control input of reception disabling unit is connected to output of TRANSMIT signal shaping unit; first input/output of message processing unit is connected through series-connected (m + 2) and (m + 1) modems and address switching unit to output of control unit; output of address switching unit is connected to input of transmission signal storage unit; t outputs of message processing unit function through t respective modems as low-frequency outputs of station; initialization of priority setting and control units, message processing unit clock generator, and system loading counter is effected by transferring CLEAR signal to respective inputs.

EFFECT: enhanced efficiency due to enhanced throughput capacity of system.

1 cl, 2 dwg

 

The invention relates to techniques for radio communication and can be used for digital communication systems, automated data exchange, air-to-ground.

A well-known system of radio communication with mobile objects, containing ground transceiver station receiver, demodulator, decoder message buffer register addresses of mobile objects, the first element And the decoder priority messages, block timers priority messages, the unit registers a priority message, the switch allocator messages, count the number of moving objects, the counter of the boot, the clock free access, the shaper time window, the clock address of the survey, the delay line, the second element And the key of free access, the block of data output as a source of information, the key address of the survey, a buffer memory unit, counter the number of repeating, the pulse generator is reset, block registration data modulator and transmitter, modem terrestrial communications, a location sensor, transducer data format, remote control ground transceiver station [1].

The disadvantages of this system should include the inability to perform the functions of the Central station of the mobile radio (ON) to monitor the entire network connection.

N is the most similar to the claimed object is the Central station of a wireless system with movable objects, containing the serially connected receiver, a demodulator and a block address decoders, as well as the transmitter, the pulse generator, n timers, counter boot block set priorities, count the number of priority messages connected in series generator enable signal transmission, the storage unit of the transmission signal, the recording unit data unit data output, n elements And n counters of impulses n keys, the control unit, n first n second pulse shapers, third, fourth formers pulses, the first, second, third, fourth elements OR memory block, where n is the number of processed messages with moving objects [2].

The disadvantages of the prototype are as follows:

- does not provide message routing for both air and ground networks;

- does not maintain dynamically changing the address database of moving objects and recipient information for routing;

- there is no conversion of message formats in accordance with the characteristics of information requirements-logical pairing recipients of information;

is not provided, billing, and monitoring and control of remote ground stations;

- no view real-time air situation for all zones radio the ligature, providing monitoring network;

- it is not the function of the notices to the message delivery;

- there is no archiving of messages passing through your service provider, and taking into account categories of urgency.

The main task, which is aimed by the invention, is to expand the functionality of the Central station system mobile radio providing network monitoring all radio zones defined area of airspace, namely: message routing for both air and ground networks; management of archives of messages passing through the Central station, and taking into account categories of urgency; monitoring the current state of the communication network; accounting schedules messages and connections of subscribers; providing an automatic search of the rolling object for the delivery of messages.

This technical result is achieved in that the Central station communication systems with mobile objects containing the serially connected receiver, a demodulator and a block address decoders, as well as the transmitter, the pulse generator, n timers, counter boot block set priorities, count the number of priority messages connected in series shaper signal including the Oia transmission, the storage unit of the transmission signal, the recording unit data unit data output, n elements And n counters of impulses n keys, the control unit, n first n second pulse shapers, third, fourth formers pulses, the first, second, third, fourth, OR elements, where n is the number of processed messages with moving objects, and the signal output block address decoders connected to the inputs key outputs through which the fourth element OR is connected to the signal input of the control unit, the inputs of the comparison block address decoder connected to the reference input of priorities, inputs of counters and inputs “Reset” n delay lines whose outputs are through the respective timers are connected with the first inputs of the respective elements And the outputs are connected to inputs of delay of the respective pulse counters, the outputs of which through the corresponding second pulse shapers are connected with inputs of the second element OR the output of which is connected to the input “Reset” the counter of moving objects, the input record which is connected to the output of the first element OR the input of which is through the corresponding first pulse shaper connected to the output of comparison block address decoders, the output of the pulse generator is connected to the second inputs of n elements, And the output of the meter moving volume is connected via tov the third element OR input meter boot the output of which is connected with the control input of the block set priorities and a second input of the control unit, the first through third pulse shaper is connected to a second of the third element OR, a third input connected to the output of the fourth pulse shaper, an input connected to the output of the transmitter in the transmit output power setting priorities is connected to the control inputs of the first key, the entered block of message processing (BOS), the group of m modems, (m+1)-th and (m+2)-th modems, block address switching unit lock reception entrance which is a high-frequency input station and the output is connected to the receiver input, the control input of the lock block connected to receive the output of the block signal “Enable transmission”, the first input-output barefoot through the serially-connected (m+2)-th and (m+1)-th modems, block address switching is connected to the output of the control unit, the output of the block address switching is connected to the input of the storage unit of the transmission signals, m outputs barefoot through m corresponding modems are low frequency outputs of the station, the initial installation of units to prioritize and control, clock pulses barefoot, meter boot by submitting to corresponding inputs of a signal “Reset”in the block processing the message block format conversion is connected bilateral ties with the (m+2)-m modem router, the storage unit address database, block rating, block messages, block display, remote control, clock state clock inputs connected to the block format conversion, router, storage unit address database, block rating, block messages, block the display of the remote control, the storage unit address database connected bilateral ties with the router and block rating, m input-output router connected to respective m modems.

Figure 1 shows the structural diagram of the Central station communication systems with mobile objects, figure 2 - block diagram of the processing block of the message.

Central station system mobile radio contains serially connected receiver 1, a demodulator 2 and the block 3 address decoders, block 4 prioritize, n timers 5, the first n lines 6 delay n elements And 7, n counter 8 pulses, the pulse generator 9, n the first 10 and the second n 11 shapers pulses, the first 12 and second 13 element OR the counter 14 number of moving objects, the third element OR 15, a counter 16 boot, the first n keys 17, the fourth element OR 18, the third shaper 19 pulses, block 20 control transmitter 21, a counter of the number of priority messages sequentially to connect the military unit 22 forming signal transmission, block 23 storage of signal transmission, the fourth shaper 24 pulses, the elements 25 matches, block 26 addresses, shifting register. The control unit 20 contains a second delay line 28, the second set of keys 29, the fourth formers 30, the counter 31 number of priority messages, the third key 32, a storage unit 33, k decoders 34 types of messages, block 35 message processing (BOS), the group of m modems 36, (m+1)th 37 and (m+2)th 38 modems, block 39, the address switching unit 40 of the lock reception, the entrance of which is a high-frequency input station and an output connected to the input of the receiver 1, the control input unit 40 lock admission is connected to the output of block 22 signal "Enable transmission", the first input-output barefoot 35 through serially-connected (m+2)th 38 and (m+1)th 37 modems, block 39, the address switching is connected to the output of the control block 20, the output of block 39 of the address switching is connected to the input unit 23, the storage of the transmission signals, m outputs barefoot 35 m of the respective modems 36 are low-frequency output station initial setting blocks setting priorities 4 and control 20, the generator 48 clock pulses, BFB 35, the counter 16 boot the system by submitting to corresponding inputs of a signal “Reset”, m - total number of mating stations in the area and recipients of information in bare block 41 conversions is of formats connected bilateral ties with the (m+2)-m modem 38, the router 42, block 43 storing the base address, the block 44 of the charging unit 45 for storing messages, block 46 display, 47 remote control, generator 48 clock state clock inputs connected to the block 41 format conversion, router 42, block 43, the address database storing unit 44 of the charging unit 45 message storage unit 46 of the display panel 47 of the control unit 44 of the storing of the address database is connected bilateral ties with the router 42 and block 44 rating, m input-output router 42 is connected with the corresponding m modems 36.

Central station system mobile radio operates in the following way. Formed on the movable object messages sequentially in time arrive at the receiver 1 are processed in the demodulator 2 and a sequence of pulses to the decoder 3 addresses. Then the numerical sequence of the moving shear register 27. The phasing of the counter 8i, i=1,..., n is the pulse from the output of the corresponding circuit 25 matches. When matching incoming address and the address stored in the block 26 addresses is triggered, the corresponding scheme 25 matches. The signal from its output through the first imaging unit 10 pulses, the first element OR 12 increases in the counter 14 in the number of mobile objects monitoring and recording the percent earlier value per unit. Simultaneously, the signal from the output of the circuit 25 matches resets the counter 8 and through the first line 6 delay starts the timer 5, which activates and opens during the corresponding element And 7, through which the counter 8 starts to do the counting pulses from the pulse generator 9. If time τ i-I scheme 25 matches does not work, i.e. the movable object is not released to us (out of the zone of stable radio communication), the counter 9 will be filled and formed at its output a pulse through the second imaging unit 11 pulses, the second element OR 13 goes to the subtractive input of the counter 14 moving objects. If time τ i-I scheme 25 matches again triggered, the pulse from the output of this circuit matches will reset the counter 8iand through the delay element 6 again starts the timer at the time τ. If this does not match an address specified by the Manager or by the imposition of messages from a number of output circuits 25 of the coincidence signals are absent. Simultaneously, the signal from the output of the circuit 25 matches to the input of the unit 4 task priorities, which has several modes of operation and changes the modes of survey key 17 depending on the signal at the control input unit 4 task priorities. The counter 16 loading system is used to evaluate the number of messages processed during a specified time interval. Data on the number of the e received messages are displayed on the unit 46 to display the data in the block 35 message processing. The output of the counter 16 load system connected to the inputs of block 4 set priorities and control block 20. The Reset command is input at block 4 job priorities, the counter 16 boot the system, the generator 48 clock pulses barefoot 35 and the control block 20 only at the beginning of the work to be installed in “Scratch” registers and counters of the respective blocks.

Message in a sequence of pulses are received at the signal input unit 20 of the control performed on the structure similarly as in the prototype, the second n-lines 28 delay and k decoders 34 message type. The message type carries information about its purpose, for example for aircraft: alarms, messages automatic dependent surveillance data exchange pilot-controller”. In the General case can be k message types, which are separated by priority. Signs of message types with the outputs of the fourth formers 301-30kgo to the input unit 23, the storage of the transmission signals, producing a corresponding message data rolling object. If a message does not require a response word, this time can be generated for the transmitter 21 messages, parcels which are necessary to indicate the type of (non) Central station communication systems with surface objects, such as wells the characteristic parcels for civil aircraft. When a message arrives highest priority fires decoder 341type the message and through the corresponding shaper 301pulse opens the key 291through which information is recorded in the storage unit 33, while the contents of the reversible counter 31 number of priority messages is incremented. Less urgent messages (priority 2 to k) after passing sequentially in time, as they are formed for communication with a mobile object, is processed similarly to the above blocks 28 and 29. Until then, until transferred to the priority message storage unit 33, the output of the counter 31 number of priority messages is high, which permit the passage through the third key 32 pulses “read”. After each transmission of priority messages pulses to the subtractive input of the counter 31 priority message arrives pulse that returns to its original condition. From the output of block 20 control messages through the block 39 address switching, (m+2)th 38 and (m+1)th 37 modems come in barefoot 35 on block 41 format conversion. If the distance between the block 20 and barefoot 35 does not exceed the quantity specified in the requirements on the interface used, the modem 37 and 38 may be missing. In block 41 format conversion Inbox conversions which are in a format required for all nodes barefoot 35. At the same time address messages are compared with the data block 43 storage of the address database. The results of this comparison a decision is made to schedule a message set by the router 42, the amount of payment in block 44 of the charging, recording the message in block 45 of the messages and, if necessary, the indication at block 46, the display and the formation of the response signal. This ensures automatic search of the rolling object for the delivery of messages and obtaining proof of delivery. In block 45 of messages is provided by the records of the messages by category of urgency. There is operational (at the time of “aging” of information) and long-term (e.g., 30 days) memory. Memory data is constantly updated. Data of long-term memory required for the analysis of conflict situations and evaluate the accuracy of calculations of the recipients of the information. Accounting for traffic messages and connections of subscribers, the calculation amount for payment of services performed in block 45 rating depending on the address and size of the message. The account of the recipient information is exposed for a specified time interval, such as daily, on a schedule determined by the block 43 storing the base address and the router 42. In block 43 storing the base address laid the Adra is and the types of all messages processed at the Central station, as well as addresses serviced BY mating peripheral stations radio system with mobile objects and recipients of information. The router 42 provides message routing for both air and ground communications networks, namely, the connection to the Central station via modems 36 peripheral stations radio system with mobile objects and recipients of information, such as service airlines and ATC. Synchronize all processes messages in the BOS 35 is a generator of clock pulses 48. Query data with is 47 remote control Central station or by using control commands transmitted via an appropriate modem 36, the router 42, block 41 format conversion, connected in series (m+2)th 38 and (m+1)th 37 modems, block 39, the address switching unit 23 of the retention signal transmission. The last operation is carried out, for example, when the request data ON the basis of “past due”. Block 39 address commutation intended for distribution of messages circulating between the block 20 management and biofeedback 35 address (type) of the message. Message BY confirming their correct reception received at the memory block control block 20, and the messages for the storage block 23 of the transmission signal for transmission at EF is R. Similar to the above operations can be carried out in the peripheral stations radio system with mobile objects. Observation of the current state of the network connection is made in block 41 format conversion on the receipts coming from the respective modems 36 in the form of the confirmation received from the Central station the message. The structure of these receipts is compared with the one embedded in the block 43 storage of the address database and after review of the conformity of the decision o the health of the remote object. Central station system mobile radio combines remote mating peripheral station radio system with mobile objects and recipients of information in a single network and delivers messages from the recipients, among which, for example, for civil aviation (GA) can be service HA, workstations controllers and computers airlines. Entering data via the control unit 20 automatically processed and sent to the recipients, which can be, for example, air traffic control centres, airlines, services HA and other objects. Traffic data, interacting, the status of remote peripheral stations and communication channels is reflected in the block 46 in real time. Graphic the ski interface provides detailed information and also gives the operator the ability to start testing the remote recipient information, to carry out the necessary operations on the establishment or disconnection of the communication channel, display statistical data. Block 45 message storage has drives for data storage with redundancy, and provides the print data to an external printer.

Blocks 1-34 in purpose and structure identical to the prototype. They can be implemented on known repetitive elements and nodes. Put blocks 35-48 can be implemented in known circuits and serial sites. Function blocks 3-20 and 23-35, 39-48 can be done programmatically using the computer.

The advantages of the inventive device are as follows:

- providing message routing for both air and ground networks within the territory of the Russian Federation with the help of dynamically changing the address database of moving objects and recipients of information;

- automatically programmatically is charging, as well as monitoring and control of remote ground stations;

- use messages automatic dependent surveillance allows you to provide real-time air situation for all areas of radio communications, which provides network monitoring and support functions transfers the notification delivery message;

- introduced sites allow you to maintain archives of messages passing through the Central station systems, mobile radio, and taking into account categories of urgency.

Thus, the proposed Central station system mobile radio will allow you to gather information about existing connections subnet air-ground in the areas of radio communications, in which is provided a monitoring network for:

- monitor the current state of the communication network;

- traffic message;

- traffic connections of subscribers;

- enable automatic search of the aircraft for the delivery of messages.

Literature

1. RF patent №2195774, M CL H 04 b 7/26, 2002.

2. A/C No. 2050695, M CL H 04 b 7/26, 1995 (prototype).

Central station communication systems with mobile objects containing the serially connected receiver, a demodulator and a block address decoders, as well as the transmitter, the pulse generator, n timers, counter boot block set priorities, count the number of priority messages connected in series generator enable signal transmission, the storage unit of the transmission signal, the recording unit data unit data output, n elements And n counters of impulses n keys, the control unit, n first n second pulse shapers is s, the third, fourth formers pulses, the first, second, third, fourth, OR elements, where n is the number of processed messages with moving objects, and the signal output block address decoders connected to the inputs key outputs through which the fourth element OR is connected to the signal input of the control unit, the inputs of the comparison block address decoder connected to the input unit ,set priorities, inputs of counters and inputs Reset n delay lines whose outputs are through the respective timers are connected with the first inputs of the respective elements And the outputs are connected to inputs of delay of the respective pulse counters, the outputs of which through the corresponding second pulse shapers are connected with inputs of the second element OR the output of which is connected to the input “Reset” the counter of moving objects, the input record which is connected to the output of the first element OR the input of which is through the corresponding first pulse shaper connected to the output of comparison block address decoders, the output of the pulse generator is connected to the second inputs of n elements, And the output of the meter moving objects is connected via a third element OR to the input of the counter system boot, the output of which is connected with the control input of the block set priorities and a second input unit of the control is to be placed, the first through third pulse shaper is connected to a second input of the third element OR, a third input connected to the output of the fourth pulse shaper, an input connected to the output of the transmitter in the transmit output power setting priorities is connected to the control inputs of the first keys, characterized in that it introduced the processing unit messages (SPM), a group of m modems, (m+1)-th and (m+2)-th modems, block address switching unit lock reception, the entrance of which is a high-frequency input station and the output connected to the receiver input, the control input of the lock block connected to receive the output of the block signal “Enable transmission”, the first input-output barefoot through the serially-connected (m+2)-th and (m+1)-th modems, block address switching is connected to the output of the control unit, the output of the block address switching is connected to the input of the storage unit of the transmission signals, m outputs barefoot through m corresponding modems are low frequency outputs of the station, the initial installation of units to prioritize and control, clock pulses barefoot, meter boot by submitting to the relevant inputs signal “Reset”, in processing block message block format conversion is connected bilateral ties with the (m+2)-the modem router, the storage unit address database, block rating, block messages, block display, remote control, clock state clock inputs connected to the conversion unit formats, router, storage unit address database, block rating, block messages, block the display of the remote control, the storage unit address database connected bilateral ties with the router and block rating, m input-output router connected to respective m modems.



 

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