SU1654088A1 - Device for identification of railway vehicles - Google Patents

Abstract

The invention relates to automatics and telemechanics in transport and can be used to automatically identify transport objects. The purpose of the invention is to increase credibility. In the case of a vehicle with a code matrix 1 on permanent magnets, the sensing element 2 emits a pulse through the readout zone, which, through the threshold element 3 and the signal extracting unit 4, enters the one-oscillator 5 or 6 depending on the polarity of the magnet. The counting of pulses is carried out by the counter 11 and, in accordance with the accepted direction of movement, the information is entered into the shift register 9. The processing of information is carried out in the decoder 13.1 Il. five

Description

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The invention relates to automatics and telemechanics in transport and can be used to automatically identify transport objects.

The purpose of the invention is to increase credibility.

The drawing shows a functional diagram of the proposed device.

The device contains a code matrix

1 of the elements on the permanent magnets located on the vehicle: the sensitive element 2, which through the threshold element 3 is connected to the signal extraction unit 4, the outputs of which are connected respectively to the inputs of the one-shot 5 and 6c by restarting, the outputs of which through the element OR 7 Zana with shaper 8 pulses.

The output of the one-shot 5 with restarting is also connected to the information input of the shift register 9 and the trigger 10. The pulse shaper 8 is connected to the clock input of the shift register 9 and to the input of the counter 11, the output of which is connected to the clock input of the trigger 10. The output of the block 10 is connected to a mode input of the shift register 9 and to the input of the indication of the direction of movement of the display unit 12, the input of which is connected to the output of the decoder 13.

The device works as follows.

The serial number of the magnets of the code matrix 1 corresponds to the bit number of the transferred information. To determine the direction of the vehicle, the extreme magnets have a field of opposite polarity. Medium magnets carry information about the vehicle number code.

When past the sensitive element

2 (flux-gate sensor) passes an identifiable transport means, then due to the action of a magnetic field in the sensitive element 2, the impulse emf is induced. The amplitude of the induced pulses depends on the distance between the magnet and the sensitive element, and the polarity depends on the direction of the magnetic field. The threshold element 3 filters out the pulses due to noise and interference occurring in the line, as well as the pulses that occur while the code magnet is in the area of uncertain reception, and normalizes them in amplitude. At the input of block 4 they receive.

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pulses whose amplitude is higher in modulus of the threshold value. Depending on the negative or positive polarity of the pulses, pulses appear either on one or the other of the output of block 4, which trigger a single vibrator 5 or 6 (respectively). The pulse at the output of the one-shot is held for as long as the magnet is in range of the element 2.

Claims (1)

Regardless of the polarity of the magnet, these pulses through element 7 cause at the output of the imaging unit 8 synchronizing pulses, on the falling edge of which information from the one-oscillator 5 is recorded and shifted. Counter 11 at the time of passage of the first code element of the code matrix 1 generates a synchronization signal for D-trigger 10. Depending on the polarity of the first magnet, the output signal of the trigger 10 appears to allow the information to shift the information to the right or left of the register 9. The number of bits of the information being transferred must be equal to stvu bits register 9. In this case, regardless of the direction of vehicle motion information output register 9 is not izmenits. On the display of the display unit, the direction of travel and the code of the vehicle number are displayed. Claims The device for identifying rail vehicles comprising a code matrix installed on a vehicle and a sensing element installed at a readout point, a signal extraction unit, a pulse counter, an output connected to a trigger input connected to the display unit, and a shift register clock input connected via a pulse shaper to the output element OR. The output is connected to the input of the decoder, the output of which is connected to the display unit, characterized in that. that, in order to increase reliability, it is equipped with one-shot, outputs connected to the inputs of the OR element. and inputs with the output of a signal extraction unit, the input of which through the threshold element is connected to the output of the sensitive element, and the output of one of the single vibrators is connected to the trigger inputs and the shift register. the mode input of the last of which is connected to the trigger output.