SU1689175A1 - Device for selective receiving and transmitting information in automatic rail traffic control system - Google Patents

Abstract

The invention relates to the field of railway automatics and can be used in the systems of automatic control of train movement and interoperation control. The purpose of the invention is to increase reliability. This goal is achieved by that the device provides transmission with high reliability to the idle post 24 and outputs it to information output 51 via the corresponding address entry 52. If for some reason the dialogue with any set of 2 hardware is not completed, the pulse signal is not input to the timer 39 which, counting out a predetermined time, acts through the element OR 40 on the trigger 41, switching it over, and also acts on the counter 43, which records one actuation of the timer 39. In this case, the equipment of the central post 24 again calls for Sews a set of 2 instruments. 1 il.

Description

The invention relates to the field of railway automation and can be used in automatic train control systems and interval regulation. 5

The purpose of the invention is to increase reliability.

The drawing shows a structural diagram of a device.

A device for selectively receiving 10 and transmitting information from a central post to vehicles contains a communication line 1, in which sets of equipment 2 are installed on vehicles, each of which 15 consists of a receiver 3 connected to a decoder 4, the outputs of which are connected with one of the inputs of the comparison unit 5, the key element 6, the memory unit 7, the key element 8, the D-trigger 9, 20, the outputs of the key elements 6 and 8 are connected respectively to the memory unit 10 ′ and the inputs of the comparison unit 11, the output of block 12 the comparison is connected to one of the inputs of the element And 13, the output of which is connected to the 25th input of the memory unit 14, the output of which is connected to the encoding unit 15, which also connects the output of the address setting unit 16, the pulse presence control unit 17, to the other input of which - 30 keys, the power source 18, and the output to the common power bus 19. The output of the D-flip-flop 9 is connected to the second input of the element YNE 20, the output of which is connected to the switch 21. Kit 2 has external inputs 35 22 and outputs 23 used to connect the actuating elements. Input 22 is connected to the third input of coding block 15. The output of the AND-NOT element 20 is connected to one of the inputs of the switch 21 and 40 to the fourth input of the block 15, the fifth input of the block 15 is connected to the output of the block 14. The other output of the receiver 3 is connected to the input of the decoder 4 and to one of the inputs of the AND element -NOT 20, the other 45th input of which is connected to the output of the Trigger, and the other inputs of block 15 are connected to the outputs of the comparison unit 5 vs the memory unit 14.

A 50 receiver 25 is installed at the central post 24, one of the inputs connected to the information input of the decoder 26, the outputs of which are connected to one of the inputs of the comparison unit 27, the other input of which is connected to the outputs of the address setting unit 28, the key element 29, the output of which connected to. the input of the comparison unit 30, the other input of which is connected to the output of the control command generation unit 31, and the output is connected to the signal generation unit 32 and the end of communication and the key element 33, the output of which is connected to one of the inputs of the memory unit 34 and key elements 35 and 36, one of the inputs of the AND 37 elements, the output of which is connected to one of the inputs of the OR 38 element and the input of the timer 39, the output of which through the IL AND 40 element and the trigger 41 is connected to the input of the element ΜΗ E 42 and connected to the input of the counter 43, the output which is connected to another input of the OR element 38. You od OR gate 38 is connected to control unit 44 the presence of the pulse signal associated with the source 45 and the power supply common bus 46. The first input of coding unit 47 is connected to the output of block 32, the second input is with the output of block 28, the third input is with the output of block 31, the fourth input is with the output of key element 36, and the fifth is with the output of AND-NOT 42 element. One of the outputs the coding unit is connected to one of the inputs of the switch 48. the outputs are connected to the communication line, and the other output is connected to the other input of the trigger 41. The equipment of the central post contains external inputs of the address, information inputs for connecting the elements of the command, information outputs 51 and address outputs dy 52.

The device operates as follows.

Information from the central post 24 at the input 50 and at the input 49 of the address is supplied to the program task block, which can be implemented, for example, on multiplexers. Further, this information from the corresponding inputs of the multiplexers, depending on the address, goes to the inputs of the encoding unit 47, which, depending on the state of the trigger, is in the off or on state.

Suppose that the trigger is in a single state and there is no signal at the input of the receiver 25, then the logical unit from the direct output of the trigger and the logical unit from the output of the receiver 25 act on the switch through the AND-NOT element 42 and connect the first output of the encoding unit 47 to communication line 1 . The logical zero signal from the output of the AND-NOT 42 element also removes the ban from block 47 and it begins to read information from its inputs and transmit it through switch 48 and communication line I. The address is set by block 28.

The information in the form of a code signal is received via connection’s connection 1 equipment set, in which the switch 21 is in the reception mode. The code signal from the communication line 1 is received by the receiver and the signal from its output goes to the main inputs of the decoder 4, where it is decrypted and the signals from the corresponding outputs go to the inputs of the comparison unit 5, key element 6, memory unit 7, key element 8, if the address is the inputs of the comparison unit 5 from the output of the decoder 4 coincides with the address of the unit 16, then a signal appears at the output of the unit 5 that allows the memory unit 7 to work, includes key elements 6 and 8, fixes the corresponding signal at the input of the D-trigger 9. Therefore, then ko one vehicle having a corresponding address, receives information from the central station 24.

Information from the output of the decoder 4 is fed to the input of the memory unit 7 and is recorded in it. As a result of the absence of a signal at the output of the key element 6, the memory unit 7 is set to the recording mode, and the second, respectively, to the reading mode. But this information is not yet reliable, since when the signal was transmitted from central post 24 to set 2 of the equipment, a code signal could be damaged by interference. To verify the accuracy of the received information, the last one from the output of the memory unit 7 is sent to the encoding unit 15 so that upon completion of receiving information from the central post 24 and releasing the communication line 1, transmit the received information back to the central post 24 to verify its authenticity. As soon as the code cycle ends, a signal appears at the output of the decoder 4, which arrives at the counting input of the C-trigger 9 and sets it, for example, to a single state. Switching of the trigger 9 will occur only when the inputs of the comparison unit 5 match the address information and, therefore, the information input of the D-trigger 9 has a corresponding signal. Trigger 9 by switching. prepares a set of 2 equipment to switch to receive mode in transmission mode. As soon as a passive pause occurs in the communication line 1, a signal, for example, of a logical unit, appears at the output of the receiver 3, which sets the decoder 4 to its original state and goes to the input of the AND-NOT element 20. where the logical unit from the received one is already present at the other input trigger 9. The logic zero signal appears at the output of the element, which removes the ban from block 15, and at the input of the switch 21 switches it to transmission mode, that is, connects block 15 to communication line 1.

At the same time, at the central post 24, when block 47 transmits a code signal to line 1, after the completion of the transmission of the code signal, a special signal is generated at the output of block 47, which affects the installation input to zero of trigger 41. Trigger 41, switching, sends the input of the AND-NOT element 42 is a logical zero signal, as a result of which a logical unit appears, which sets the unit 47 to its original state and prevents it from working, and also switches the switch 48 to the information receiving mode. In this case, a passive phase is formed in communication line 1, which is perceived by all receivers.

Set 2 of the equipment switches to the transmission mode only after the equipment at the central station 24 switches to the reception mode.

Unit 15 of set 2 of the equipment transmits to the central post 24 via communication line 1 the address of its set, which is fed to the input of block 15, and the output from block 16 also receives information from the output of block 7 of the memory to control its reliability and information from control points of control devices or any other circuits on a dispersed object (this information can also be Diagnostic Information for orders transmitted to central post 24).

The code signal via communication line 1 is sent to the central post 24 and through the switch 48 acts on the input of the receiver 25. The presence of a signal at the input of the receiver 25 turns off the corresponding signal from its second output, which removes the ban from the decoder 26, and it begins to decrypt the signal coming to its input code signal. At the first output of the decoder 26, address information is generated, which is compared by the comparison unit 27 with the information at the output of the block 28. If both information is the same, then the central post 24 knows that it transmitted information from itself to the very set of equipment 2 for which it is intended. The signal from the output of the first comparison unit 27 includes elements 29 and 33. Then, the information from the output of the decoder 26 enters through the included key element 29 to one of the inputs of the comparison unit 30, where it is compared with information supplied to its other input from the output of the unit 31, from which the information was previously transferred to kit 2.

If the information at the inputs of block 30 is the same, this indicates that the information from the output of block 31 was correctly encoded in block 47, transmitted without distortion via communication line 1, correctly received by receiver 3 and decoded by decoder 4, and written to memory block 7 without errors , then correctly encoded in block 15 and without distortion was transmitted back to the central post 24 on the same communication line 1. If the information at the inputs of block 30 is different, then at the central post 24 it is not known where the failure occurred, the ion again repeats the transmission of the same information to the same set of equipment.

If the information at the inputs of the second comparison unit 30 is the same, then a signal is generated at its output, which acts on the unit 32, which is turned on and stored in it. The signal from the output of block 32 goes to the input of block 47, and the signal from the output of block 32 goes to the input of block 34, in addition, the signal from the output of block 32 includes the fourth key element 36. Information from the output of the decoder 26 goes to the input of block 34, which is located in recording mode, since there is no information at the output of element 33, and this signal is fed to the input of block 34.

This information also through block 34 enters through the key element 36 to the input of block 47.

Information at the output of the decoder 26 is not available at this stage, it appears only when the dialogue of the central post 24 with this set of 2 equipment ends.

At the output of the decoder 26, a signal appears at the end of the code cycle, which is input to the AND 37 element, and also through the OR 40 element to the trigger 4 на installation input, switching it to the single state, thereby preparing the central post equipment 24 for the information transfer mode. Since there is no information about the end of communication at the output of the decoder 26, it is also absent at the output of the key element 33. Therefore, the key element 35 is turned off and the information from the block 34 is not read into external devices, that is, the And element 37 is also blocked, thereby, the request address of the central post 24 remains the same.

As soon as a passive pause is formed in the communication line 1, a signal appears at the second output of the receiver 25, which sets the decoder 26 to its initial state, also turns on block 47 via the AND-NOT element 42 and switches the switch 48 to transmission mode.

In the second cycle of information transfer from the central post 24 to the equipment set 2, provided that the primary information was transmitted correctly, unit 47 transmits information to the communication line 1 for the same set of equipment, which consists of the address part, the end of communication from the central post 24, information from the output of the key element 36, which is recorded in the block 34 of the memory.

As noted above, a set of 10 equipment, after having transmitted the code signal to the central post 24 via the communication line, immediately switched to the reception mode. The receiver 3 and the decoder 4 receive and decode the code signal 15 coming from the communication line 1. If the code signal from the central post 24 contains the End of communication information, along with the address and control information, then the third output of decoder 4 does not have information, and the memory unit 7 works, since the output signal of the block 7 is supplied with an output the first comparison unit 5, and since there is information on the second output of the decoder 25 4 End of communication, the signal of which through the key element 6 is fed to the input of the operating mode switch of the memory unit 7, the latter switches to read mode. The signal from the output of key element 6 also arrives at the input of block 10, which switches to the recording mode, and the information is rewritten from block 7 to block 10, while ensuring the correct recording of information in 35 block 10 from the first multi-bit block

7.Memory using block 12 comparison.

Information from the output of the decoder 4 enters through the key element 8 to the output of the comparison unit 11. This information 40 is control with respect to the information that comes from external inputs 22 to another input of block 11. If the information at both inputs matches, it says that it goes from external inputs 22 to another input of block 11. If the information is on both the inputs are the same, this says that from the external inputs 22 the information was correctly received by the central post 24.

The unit signal from the output of the second comparison unit 11 is fed to one of the inputs of the And 13 element, to the other inputs of which single signals are received, provided that the information from the memory unit 7 is correctly55 but copied to the memory unit -10, which is checked by the third comparison unit 12, the signal from which the element And 13 arrives at the input, there is also a single signal at the output of the comparison unit 5, that is, there is ___ place for confirmation that the dialogue of the central post 24 is carried out precisely with the indicated set 2 of equipment.

The signal from the output of the element And 13, when a match appears at the inputs of the latter, acts on the block 14, is stored in it. Block 14 generates at its output a signal End of communication, which is fed to the input of coding block 15.

As soon as the transmission of the code signal from the central post 24 ends, a signal appears on the last output of the decoder 4, which turns on the trigger 9 and it prepares the equipment for the transmission mode. And when there is a passive pause in the communication line 1, as was already noted above, the equipment switches to the transmission mode and to the communication line 1 from the output of block 15, a code signal will be received through the switch 21, which contains the information “End of communication”.

The specified code signal is sent to the central post 24, where the signal is received by the receiver 25 and decoded by the decoder 26. If the address at the output of the decoder 26 matches the address from the output of the address setting unit 28, a signal appears at the output of the block 27, which includes key elements to another input block 11. If the information on both inputs matches, it says that from the external inputs 22 the information was correctly received by the central post 24.

The unit signal from the output of the second comparison unit 11 is supplied to one of the inputs of the And 13 element, to the other inputs of which single signals are received, provided that the information from the memory unit 7 is correctly copied to the memory unit 10, which is checked by the third comparison unit 12, the signal with which goes to the input element. That And 13, at the output of the comparison unit 5 there is also a single signal, that is, there is confirmation that the dialogue of the central post 24 is carried out with the specified set of equipment 2.

The signal from the output of the element And 13, when a match appears at the inputs of the latter, acts on the block 14, is stored in it. Block 14 generates at its output a signal End of communication, which is fed to the input of coding block 15.

As soon as the transmission of the code signal from the central post 24 ends, a signal appears on the last output of the decoder 4, which turns on the trigger 9 and it prepares the equipment for the transmission mode. And when there is a passive pause in the communication line 1, as was already noted above, the equipment switches to the transmission mode and a code signal that contains the address information and the end of communication will enter the communication line 1 from the unit output through the switch 21.

The specified code signal is sent to the central post 24, where the signal is received by the receiver 25 and decoded by the decoder 26. If the address at the output of the decoder 26. matches the address from the output of the address setting unit 28, a signal appears on the output of the block 27, which includes the key elements of the decoder 26 , and if not, then the output of the key element 29 is also missing information, although it is included.

At the output of the decoder 26, the signal End of communication appears, which enters through the key element 33 and switches the operating mode of the memory unit 34 to the read mode, and also includes the element 35 through which information is read into the external memory, information is read through the external outputs 51.

Upon completion of the transmission of the code signal to the central post 24, a signal appears on the last output of the decoder 26, which acts through the element 40 to the trigger 41, switching it to a single state and preparing the equipment of the central post 24 for transmission. In addition, the signal from the last output of the decoder 26 is fed to one of the inputs of the And 37 element, where the logical unit is already present at the other input. The presence of a signal at the output of the AND element 37 also leads to a reset to the initial state of the timer 39, acts on the block 44 and through the OR element 38 resets the block 32 to the initial state and brings the address setting unit to a new state.

With the onset of a pause in line 1, the central post begins a dialogue with another set of equipment.

When the equipment is in good condition, pulse signals appear at the inputs of blocks 44 and 17, which are erected by blocks 44 and 17, and they provide a continuous supply of voltage to buses 46 and 19 from power sources 45 and 18. In the absence of pulse signals at the inputs of blocks 44 and 17, they turn off after a while, thereby removing on. Tension from supply tires 46 and 19.

If for some reason the dialogue with any set of equipment is interrupted, the pulse signal does not go to the reset input of timer 39, which, after counting the set time, activates through the second element OR 40 n trigger 41, switching it, and also acts on the trigger a counter 43, which records one actuation of the timer 39. In this case, the equipment of the central post 24 again requests a set of 2 equipment. If the timer 39 is triggered a predetermined number of times, then a signal appears at the output of the trigger counter 43, which translates the address into the address setting unit 28 to a new state, in addition, the signal from the output of the first OR 38 element sets the block 32 to its initial state and impulses the block 44.

The lack of information on the external output 51 at this address (output 52) notifies external devices that the hardware set 2 is not working.

Claims (1)

Claim A device for the selective reception and transmission of information 'in the automatic control system for the movement of trains, containing elements for specifying a command code installed on a central post, OR elements and a signal-end signal generation unit mounted on a D-trigger vehicle and installed on a central post and on vehicles receivers, decoders, memory job blocks, AND elements, power supplies, key elements and coding blocks, the first input of the first of which is installed on the transport the tool is connected to the output of the first address setting unit connected to one of the inputs of the first Comparison unit, the other input of which is connected to the output of the first decoder, and the output to the first input of the first AND element, D-trigger input, the first input of the first memory unit and the first the input of the first key element, the second input of which is connected to the second output of the decoder, and the output to the second input of the first memory block and the first input of the second memory block, the output of which is connected to the block of executive elements, and the second input is connected to the output of the first memory block connected to the second input of the first coding block, the third input of which is connected to the output of the block of executive elements associated with the first input of the second comparison block, the OUTPUT of which is CONNECTED & H to the second input of the first element And, and the second input is connected to the output of the second key element, the input of which is connected to the third output of the first decoder, the fourth output of which is connected to the third input of the first memory block, the information input and the installation input in the initial state, respectively the first and second outputs of the first receiver, and the fifth output to the input of the D-flip-flop, the input of the initial state of which is connected to the first output of the first encoding unit installed on the vehicle, the first and second outputs installed at the central post of the second receiver are connected respectively to the information the input and the input of the installation in the initial state of the second decoder, the first output of which is connected to the first input of the third comparison unit, the second input of which is connected to the output of the second task unit I am the address, and the output is with the first inputs of the third and fourth key elements, the second inputs of which are connected respectively to the second and third outputs of the second decoder, the fourth output of which is connected to the first input of the second memory unit, and the fifth output to the first inputs of the first OR element and the second AND element, the second input of which is connected to the output of the fourth key element connected to the second input of the second memory block, and the output - with the first input of the second OR element, the output of the signal conditioning block End of communication nen with the first input of the second coding unit, characterized in that, in order to increase reliability, it is equipped with a timer installed at the central station, a pulse counter, an additional trigger, additional key elements, a control command generation unit and OR elements installed at the central station and the vehicle -NOT, by pulse signal presence control units, switches, additional comparison blocks, and additional memory blocks, while the signal conditioning block and represents a distributor, and the second block of setting the address is a register, the input of which is connected to the output of the second OR element, the second input of which is connected to the output of the pulse counter, the input of which is connected to the output of the timer, the input of which is connected to the output of the second AND element, the information input of the block the formation of control commands associated with the outputs of the elements of the command code, the address inputs are connected to the output of the second block of the address set, connected to the second input of the second coding block, and the output to the third input in the second coding unit and the first input of the first additional comparison unit, the second input of which is connected to the output of the third key element, the output is the first input of the signal conditioning unit. End of communication, the second input of which is connected to the output of the second OR element, connected to the input of the first presence control unit pulse signal, the output of which is connected to the first power source and connected to the first input of the first additional key element and the second input of the third memory block, the output of which is connected to the first input of the second additional key element, the second input connected to the output of the fourth key element and the second input of the first additional key element, the output of which is connected to the fourth input of the second coding block, the first output of which is connected to the first input of the first switch, the second output to the first input of the additional trigger whose second input is connected to the output of the first OR element, the output to one of the inputs of the first AND-NOT element, the second input of which is connected to the second output the second receiver ^from ka, and the output to the fifth input of the second coding unit and the second input of the switch, the first output of which is connected to input 25 of the second receiver, and the third input and second output are connected through the communication line to the first input and output of the second switch installed on a 5 vehicle, the second input of which is connected to the second output of the second coding unit, the second output is to the input of the first receiver, the second output of which is connected to the first input of the second 10 AND-NOT element, the second input of which is connected the output of the D-flip-flop, and the output - to the third input of the switch and the fourth input of the first coding block, the fifth • input of which is connected to the output of the second 15 additional memory block connected to the input of the second control unit for the presence of a pulse signal, the output connected to the power source, and the first output - to the first input of the second additional memory block, the second input of which is connected to the output of the first AND element, the third input is connected to the output of the second additional comparison block, whose inputs are connected to the outputs of the first- and second memory blocks. Compiled by V. Skorikov Editor M. Jankovic Tehred M. Morgenthal Corrector, M. Demchik Order 3776 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the USSR State Committee for Science and Technology about 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.