RU1787852C - Automatic device for reading numbers of railway transportation facilities - Google Patents

Abstract

Usage: to identify vehicle units and can be used to automatically read vehicle numbers. The inventive contains a carrier 1, receivers 2,12, the key block 3, the elements of the IL AND 4,24,26, 27, the elements And 5. 10. 16, 17. inverter 9, triggers 6, 11, 15, 18, 19 22. register 23. counter 25. 2-6-10-11-14-15-5-19-17-18-21-22-3-3-23. 2-3-24-25-27-26-22, 2-4-21-22, 8-9-1bg 17-18, 12-13-5-19-28-27, 12-4-20-26 , 20-23. 2 ill.

Description

The invention relates to the field of identification of transport units and can be used to automatically read vehicle numbers, for example, railway cars.

. The aim of the invention is to increase reliability.

In FIG. 1 shows a functional diagram of the device; in FIG. 2 - code carrier

and receivers. ..:

A device for reading vehicle numbers contains one information carrier 1 located on the vehicle and a receiver 2 installed at the checkpoint connected to the key block 3, the OR element 4, the 5 AND element, the trigger 6 and the inverter 7, the receiver 8 connected to the block 3 , ele.-, ment 4 OR, element 5 AND, inverter 9, element 10 AND, connected to trigger 6 and trigger 11, the receiver 12 connected to block 3, element 4, inverter 13 and element 14 AND, connected to trigger 11 and trigger 15, element 16 AND, connected to the element at 5, inverters 7, 9, 13 and the And element 17, which is connected to the trigger 18 and the trigger 19, connected to the element 5 and the And element 20, which is connected to the element 4, the trigger 15, circuit 5 and the element 21 M, which is connected to circuit 4, trigger 18 and trigger 22 connected to block 3, which is connected to register 23 and OR element 24, connected to register 25 and counter 25, OR element 26, which is connected to triggers 18, 22, element 20, register 26 and an OR element 27 connected to triggers 6, 11, 15, 19, register 23, counter 25. And circuit 28, which is connected to circuits 16, 1 7 and trigger 19. The distance between receiver 2 and receiver 8, as well as between receiver 8 and receiver 12, is equal to the distance between adjacent elements of the same code group of carrier code 1, which necessarily contains an opaque element. In addition, this distance is a multiple of the number of code groups of code carrier 1. The code group of the beginning of code carrier 1 is located on the code carrier 1 on the left after the inclusion element (see Fig. 2). Between the first v (second, second, and third elements of the code group of the code carrier start 1, the first and second elements of the first, second, and third information groups are arranged sequentially through the gaps, which are elements of synchronizing groups, respectively. ice behind the third element of the code group of the beginning of the code carrier 1.

The device operates as follows.

Reading information from the carrier 1 is carried out at a checkpoint. max with the photographic method in the light, When the vehicle moves through the checkpoint, the code elements of the code carrier 1 modulate the light fluxes of successive receivers

0 2.8 and 12, Receivers 2, 8 and 12 convert the modulated light flux into electrical impulses. When the transport unit passes the checkpoint in the direction from receiver 2 to receivers 5, 8, 12, the first (including) code opaque code carrier element 1 alternately blocks the light fluxes of the receivers 2, 8 and 12. At the moment of completely blocking the light flux of the receiver 2

0 the output signal of this receiver goes to the input of the unit in trigger unit 6, trigger 6 from the initial state O goes to state 1. Therefore, the signal is set to the first input of circuit 10 AND

5 logical units. With further movement of the code carrier 1 in a given direction, the first element of this carrier leaves the zone of action of the light flux of the receiver 2 and crosses the light flux

0 of receiver 8. At the moment of completely blocking the luminous flux by the first code element of the code carrier 1, the signal from the output of receiver 8 through circuit 10 is supplied to the input of the unit in trigger unit 11, setting it to state 1, which ensures that the signal of the logical unit is the first input of the circuit is 14 I. When the first code element passes the code carrier 1 of the light flux

l. of receiver 12 at the time of complete overlap of this light flux, the signal from the output of receiver 12 through circuit 14 is applied to the input of the unit in trigger unit 15. Trigger 15 from the initial state O goes to state 1. Logical unit,

after having arrived at the single output of trigger 15, it enters the first inputs of circuits 5 and

20 I. At the time of leaving the zone of action

the receiver 12 of the first switching element “code carrier 1” into the zone of action of the light fluxes of the receivers 12, 8, and 2 receives the second and third elements of the code group of the beginning of the carrier 1. Moreover, the first element of the code group of the beginning

 the carrier is lumen, and the second and third elements are jumpers (opaque elements). Thus, when the code group of the beginning of the code carrier 1 is located in the range of the receivers 12, 8 and 2 at all inputs of the circuit 5 And signals 1 are set, the output signal of the circuit 5 is fed to the setup input 1 of the trigger 19, which is from the trailing edge of the input pulse from the initial state goes to state 1, The output signal from the direct output of the trigger 19 is fed to the second inputs of the circuits 17 and 20 I. After passing through the code group, the beginning of the code carrier 1 of the section, reading in the zones of the light flux of receivers 2, 8 and 12 after elements are the first synchronizing group consisting of only gaps. The simultaneous appearance of transparent elements in the zones of operation of all receivers 2, 8, and 12 causes the formation of the output signal by the 16 I circuit, which, through the 17 I circuit, is fed to the setup input 1 of trigger 18, the signal from the single output of which is supplied to the first input of the 21 I circuit. Immediately after the first synchronizing group passes the reading section in the zones of action of the light fluxes of the receivers 2, 8 and 12, the first information group of the code carrier 1 appears. Moreover, when the light flux receiver 12 is modulated, the first element of the of the information code group, the second and third elements of this code group modulate the light fluxes of receivers 8 and 2, respectively. Since the information code group necessarily contains an opaque element, a signal appears on the output of OR circuit 4, which is transmitted through circuit 21 arrives at the input of the unit in the trigger unit 22, the signal from the direct output of which is supplied to the control input of the key block 3. The signals from the outputs of the receivers 2, 8 and 12 through the open block 3 are fed to the first information inputs of the register 23 and to the inputs of the OR circuit 24. The output signal of the circuit 24 is fed to the information input of the counter 25, which from the initial state goes to state 1. In addition, the output signal of the circuit 4 is fed to the third input of the And circuit 20, at the first and second input of which there are signals 1 from the outputs of the triggers, respectively 15 and 19. The output signal of the circuit 20 is supplied to the shift input of the register 23 and through the OR circuit to the reset inputs of the triggers 18 and 22. On the trailing edge of the output signal of the circuit 20, the register 23 shifts the recorded information by three bits, the triggers 18 and 22 are returnedin the initial state.

After the first information code group passes the reading carrier 1 of the reading section, the synchronization and information elements of the second and third code groups appear in the zones of action of the light fluxes of receivers 2, 8 and 12, and the device works in the same way as when passing through the reading zone 5 of the first information group. At the moment the code carrier exits the read zone, the signal that appears at the output 3 of counter 25. is fed through the OR circuit 27 to the reset inputs of register 23, triggers 6, 11, 15, 19, counter 25 and through circuit 26 to the reset inputs of triggers 18, 22. On this signal, the register 23 provides the information read from the code carrier, and returns to its original state, in

5, triggers 6 are also returned to their initial state. 11. 15, 18, 19.22, counter 25. At this point, the cycle of reading information from the carrier has ended.

Claims (1)

0 Claims A device for reading numbers from railway vehicles, containing a lattice code plate mounted on the vehicle and 5 emitters and receivers installed in the reading point, the first of which is connected to the first input of the first OR element and the input of the first inverter, triggers, the first of which is connected the first Q input to the output of the first receiver connected to the first input of the key block, and the output to the first input of the first And element, the first input of the second And element is connected to the output of the first and a rotor, 5 register and a pulse counter, furthermore, in order to increase the reliability, it is equipped with additional receivers, inverters, AND, OR elements, and the outputs of the Q key block are connected to information inputs the register and the second OR element, the output of which is connected to the first input of the pulse counter, the second input of which is connected to the output of the third OR element, which is connected to the control input of the register, the first input of the fourth OR element, the second input of the first trigger and the first the entrances of the second, tre rd and fourth flip-flops and OR Yield fourth element is connected to first inputs of said fifth and sixth flip-flops, wherein the second receiver output is connected to the third input key unit and the second input of the first. the And element, the output of which is connected to the second input of the second trigger, the output connected to the first input of the fourth And element, the second input of which is connected to the output of the additional receiver and connected to the second inputs of the key block, the first OR element, and the second inverter. 0 5 the output of which is connected to the first input of the fifth AND element and the second input of the second AND element, the third input of which is through three. The third inverter is connected to the output of the second receiver and connected to the third input of the first OR element and the second input of the fifth AND element, the third input of which is connected to the output of the first receiver, the fourth input to the output of the third trigger, and the output to the second input of the fourth trigger, the first the output of which is connected to the first input of the third element I. the second input of which is connected to the output of the second element And connected to the first input of the sixth element And, the output of which is connected to the second input of the sixth trigger, and the second input to the second the output of the fourth trigger connected to the first input of the seventh AND element, the second input of which is connected to the output of the third trigger, the third input - with the output of the first OR element connected to the first input of the eighth AND element, and the output with the second input of the fourth OR element and the input of the register entry, the output of the fourth AND element is connected to the second input the third trigger, and the output of the eighth element And is connected to the second input of the fifth trigger, while the output of the sixth trigger is connected to the second input of the eighth element And, and the output of the third element And the first input of the third OR element, the second input of which is connected to the output of the pulse counter.