SU1463606A1 - Device for reading number of railway vehicle - Google Patents

Abstract

The invention relates to transport automation and can be used to identify the transport units of the source 11 and determine their direction of movement. The purpose of the invention is to increase reliability. When the vehicle is moving through the control point, the code elements of the information carrier modulate the luminous flux. The signals are sensed by sensors 2 and 3, which open the coincidence element 10, and the device goes into operating mode. When a signal arrives, the key elements 7 and 8 set up the switching trigger 13 to the state of the unit from which the signal enters the switch 9, disabling the passage of signals from sensor 3 to amplifier 14 and peak detector 15. Signals from amplifier 9 output go to two levels an amplitude detector 16, the signal of which convokes the trigger 17 of the code in one state. The correctness of the code is determined by the code control block 18, which carries out a one-shift shift by one bit of the shift register 1 19. 5 il. i (L

Description

elements 4 and 6 to the element OR-NOT 5. When the vehicle is moving through the control point in the direction indicated by the arrow, the code elements of the carrier 1 of information first modulate the light flux E of the emitter of the sensor 2, and then the sensor 3 (Fig. 5a). The photodetectors of sensors 2 and 3 convert the light flux E into electrical impulses (Fig. 56), the amplitude U of which depends on the width d of the code elements. To a code element with a width d corresponds to a pulse with amplitude and, and to a code element with a width

. about - impulse uq

,

 and.

and, 0,8 id, „kc

Up 0.5; Ui 0.4,

where U / "oi" .t is the amplitude of the signal from sensors 2 and 3 with the MODULE 1

100% luminous flux E.

As sensors 2 and 3, for example, photo relay FRSU-1-0 can be used.

When reading the latter (in the direction of travel) of the enclosing element of the information carrier 1 by the sensor 2, the sensor 3 reads the first inclusive element. The signals of the sensors 2 and 3 open element 10

Switch 13 enters the switch 9, allowing the passage of signals from sensor 3 to amplifier 14 and peak detector 15.

At the same time, trigger 11 on Yugeni translates peak detector 15 into sample mode. The switch-on trigger signal 11 through the input 43 of the peak detector 15 opens the switch 37, allowing the signal of the sensor 3 to pass from the input 44 to the input of the amplifier 36. The switch 40 through the switch-on trigger trigger opens the switch 40, through which the capacitor S9 discharges,

The signal of sensor 3, amplified by element 36, charges the capacitor 39. After reaching the value of U, 0.8, the amplitude of the signal of sensor 3 and the force of the bodies 36 decreases.

Diode 38 prevents capacitor 39 from discharging through repeater 36 and remains charged until voltage and ,. This voltage is amplified by amplifier 41 and from the input of the peak detector 15 is fed to the control input of amplifier 14.

From the output of the amplifier 14 (Fig. 5i), the signals of the sensor 3 are fed to a two-level amplitude detector 16,

tuned to highlight signals

unit and zero code elements of the carrier 1 information. When reading the zero code element, nta / signal appears at one of the outputs (zero) of the two-level amplitude and amplitude detector 16, a. when reading a single code element - on both outputs (zero and single, Fig. 5k, l). The signal of a single output of two: sine-level amplitude detector 16 cocks the trigger 17 of the code to state 1.

With the falling edge of the zero-output signal of the two-level amplitude I detector 16, the firing trigger 1t is set to state O. At the same time, the key 37 and the peak detector 15 switch to the amplitude storage mode. At the same time, on the falling edge of the zero output signal two: the level amplitude detector 16 is increased by one the content of the distributor 23 of the code control unit 18 and shifted by one bit of the shift register 19. If this is done, the code element of the carrier 1 of the information circuit of the device is read and it goes into standby mode.

After reading the last code element (including) of the information carrier 1, the distributor 23 of the code control unit 18 generates a signal according to which the comparison element 25 compares the control code from shift register Pa 19 to the counter code 24 corresponding to the number of unit data cells read by sensor 3. If the codes are equal, the comparison element 25 generates a signal that

15 through the one-shot 27 opens the keys 29 and through the output 34 of the code control unit 18, the output keys 20 receive a signal allowing the reading of information about the number of the transport vehicle, its direction of movement and orientation (front, rear). The vehicle number code is read from the corresponding bits of the shift register 19, the injection code, the trigger 17 is in the 25th direction state — from the flip-flops 12 and 13 com1 and the lower part of the shift register 19 starts the code, and the contents of the counter 24 of the control unit 18 code one is added. Pr-and

mutations, and the orientation code is from the trigger 26 of the code control block 18. And regardless of the orientation of the vehicle. And, therefore.

Reading the zero code element of the information carrier 1 reads the code, that code trigger 17 is in the O state, and the O code is written to the low-order bit of the shift register 19, and the contents of the counter 24 remain unchanged.

After reading the first three bits of the information carrier 1 (including the beginning or end of the carrier; 1 information), the distributor 23 of the code control unit 18 generates a signal according to which the comparison element 25 compares the soda: the three first bits of the shift register 19 are shifted from

 the same (for example, starting from the older bit).

After the end of the reading, the single-vibrator 28 generates a signal, according to which 35 the reset unit 21 puts the device into standby mode. If the control code and the counter code 24 are not equal, the information is not matched by the output keys 20 and 40 element 25 is not produced, the comparison through the one-shot 28 generates a signal to the reset unit 21, which puts the device in standby mode.

When moving the vehicle’s start and end information, 45 va in the opposite direction to

stored register 22. If an information start code is read, trigger 26 is cocked to state 1, and if an end code is read, trigger 26 remains in state O. If the read code does not match the start and end codes (i.e., read not media 1 information), element 25 comparison

With an arrow, the code elements of the information carrier 1 first modulate the luminous flux of the sensor 3 and then the sensor 2. When the code element 3 is read the last 50 motion of the sensor 3, the sensor 2 reads the first code element of the information carrier 1. The signals from sensors 2 and 3 open the coincidence element 10 and the device through the one-shot 28 forms a sigg 55 which goes to the operating mode. With further, coming through the output 35 of the block 18 of the control code in the block 21 of the reset When this block 21 of the reset generates a signal installation in O trigger

By moving the information carrier 1, the amplitude of the signal of the sensor 2 is reduced and the coincidence element 10 is closed. Behind, pick up the front exit of the device and it goes into standby mode.

After reading the last code element (including) of the information carrier 1, the distributor 23 of the code control unit 18 generates a signal according to which the comparison element 25 compares the control code from the shift register 19 with the counter code 24 corresponding to the number of unit data cells read by sensor 3. If the codes are equal, the comparison element 25 forms a signal which

through the one-shot 27 opens the keys 29 and through the output 34 of the code control unit 18, the output keys 20 receive a signal permitting the reading of information about the number of the transport office, the direction of its movement and orientation (front, rear). The vehicle number code is read from the corresponding bits of the shift register 19, the direction code is from the switching triggers 12 and 13, and the orientation code is from the trigger 26 of the code control unit 18. And regardless of the orientation of the vehicle. And, therefore.

media information is read code

30 information carrier 1 is read code

 the same (for example, starting from the older bit).

After the end of the reading, the single-vibrator 28 generates a signal, according to which 35 the reset unit 21 puts the device into standby mode. If the control code and the counter code 24 are not equal, the information is not matched by the output keys 20 and 40 element 25 is not produced, the comparison through the one-shot 28 generates a signal to the reset unit 21, which puts the device in standby mode.

When moving a vehicle in the opposite direction specified

With an arrow, the code elements of the information carrier 1 first modulate the luminous flux of the sensor 3 and then the sensor 2. When the code element 3 is read the last 50 motion of the sensor 3, the sensor 2 reads the first code element of the information carrier 1. The signals from sensors 2 and 3 open the coincidence element 10 and the device switches to operating mode. Upon further movement of the information carrier 1, the amplitude of the signal of the sensor 2 decreases and the coincidence element 10 closes. For, pick up the front of the output signal, the coincidence element 10 cocks in state 1 an activation trigger 11, which opens the key elements 7 and 8. When the amplitude of the signal of the sensor 2 reaches the response threshold of the key element 7, it opens and sets one switching trigger 12 to state 1. Signal

connected to the control inputs of the switch and respectively to the first and second inputs of the output keys, the third input of which is connected to the output of the shift register and connected to the new input of the code control unit, which is connected to the control input of the output keys with one output.

the inverse signal of the trigger 12 com Q, another output - to the input of the block of shutdown closes another key element 8, preventing the passage of signals: sensor 3 to the trigger 13. switching. The direct output signal of the switching trigger 12 enters the switch 9, allowing the passage of the signals from sensor 2 to the amplifier 14 and the peak detector 15. The device then works in a similar way.

If the luminous flux of the illuminators of the sensors 2 and 3 is modulated by non-code elements of the information carrier 1, and by the elements of the vehicle body, the modulation depth will reach 100%. The amplitude of the signals of the sensors 2 and 3 at the same time (11 ,,.) Will be sufficient for the triggering of the threshold elements 4 and 6. The threshold elements 4 and 6 close the element 10 OR-HE 5 and the element 10 coincides with the simultaneous overlapping of the sensors 2 and 3, the device remains: Yots in standby mode.

Claims (1)

Claims I A device for reading a railway vehicle number containing a lattice data carrier located on a vehicle and sensors installed at the test point connected to the threshold element inputs, key elements connected to the outputs of the installation in 1 switching triggers, inverse output one of which is connected to one of the inputs of one key element, the inverse output of the other is connected to one of the inputs of the other key element, and the direct outputs are switching iggerov Sa, the output of which is connected to the installation inputs to O of one and the other switching triggers, code control block, activation trigger and shift register, coincidence element, the output of which is connected to the installation input in 1 activation trigger connected by the output to the third inputs of key elements , and a two-level-20 amplitude detector, characterized in that, for the purpose of increased reliability, it is equipped with an OR-NOT element installed at the control point, connected to 25 inputs to the outputs of the threshold elements, and an output to the first input lementa coincidence that the second and third inputs respectively connected to said outputs sen- tors 30 and to data inputs switch, an amplifier whose control input is connected to the switch output, a peak detector, the control input of which is connected 35 to the switch trigger code, information input to the switch output, and output to the information input of the amplifier, with a two-level amplitude detector input 40 Dinen with amplifier output and code trigger, connected to the installation inputs in 1 and O to one and another outputs of a two-level amplitude detector, the last of which 45 is connected to the second input of the code control unit, with input the house of the trigger trigger and with the control input of the shift register, and the information one, the input of which is connected to the output 50 of the code trigger. eight connected to the control inputs of the switch and respectively to the first and second inputs of the output keys, the third input of which is connected to the output of the shift register and connected to the new input of the code control unit, which is connected to the control input of the output keys with one output. Sa, the output of which is connected to the installation inputs to O of one and the other switching triggers, code control block, activation trigger and shift register, coincidence element, the output of which is connected to the installation input in 1 activation trigger connected by the output to the third inputs of key elements , and a double-level amplitude detector, characterized in that, for the purpose of increased reliability, it is equipped with an OR-NOT element installed at the control point, connected to 5 outputs of the threshold elements, and output to the first ementa coincidence that the second and third inputs respectively connected to said outputs 0 sen- tors and to data inputs switch, an amplifier whose control input is connected to the switch output, a peak detector, the control input of which is connected 5 to the switch on trigger code, information input to the switch output, and output to the information input of the amplifier, and a two-level amplitude detector input from Dinen with amplifier output and code trigger, connected by installation inputs to 1 and to O to one and another outputs of a two-level amplitude detector, the last of which 5 is connected to the second input of the code control unit, to the input m and incorporating a trigger control input of the shift register, and the data whose input is connected to the output code 0 trigger.