RU31553U1 - Arrangement of an automated workstation for a railway station control officer (AWP-DSP) - Google Patents

Description

2003107240

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in 61 L 19/14 V 61 L 23/16

DEVICE OF THE AUTOMATED WORK PLACE OF THE DUTY BUT THE RAILWAY MANAGEMENT OF THE RAILWAY STATION

The utility model relates to railway automation and telemechanics, namely, devices containing critical information.

It is known “A device for activating an executive relay of railway automation (copyright certificate No. 1017570, B61L 23/16, priority 03/02/81), containing the first switching unit, one input of which is connected to the first output of the pulse signal generation unit, and the other is connected to one power source. It is equipped with a second switching unit, another power source and a voltage multiplier, while one input of the second switching unit is connected to the second output of the pulse signal generating unit. The second input is connected to another power source, and the outputs of one and the other switching blocks are connected to the input of the voltage multiplier connected by the output to the executive relay.

However, in this device, it is necessary to use two bipolar power sources. In addition, it uses a complex multiplication block scheme.

It is also known “Device for activating an executive relay (copyright certificate No. 1017571, B61L 23/16, priority 11.12.81), containing the first and second switching units, one of whose inputs are connected to the outputs of the pulse signal generating unit. Another input of the first switching unit is connected to the positive pole of one power source, and the other input of the second switching unit is connected to the negative pole of another power source. Moreover

(ARM-DSP).

the negative pole of one power source is connected to the positive pole of another power source, the outputs of the switching blocks are connected to the input of the voltage multiplier, the output of which is connected to an executive relay. It is additionally equipped with a choke, one output of which is connected to the input of the voltage multiplier, and the other to the poles of the power sources connected to each other.

However, in this device, it is required to use two bipolar power sources, and the presence of a choke reduces the reliability of the device. In modern microelectronics, the use of inductive components is inappropriate.

Also known is a "Device for transmitting pulse signals for monitoring elements of railway automation and telemechanics (copyright certificate .№1242414, B61L 19/14, NOZK 19/23, priority 13.07.84), containing isolation units, the first input of each of which is connected to the output of the corresponding source of pulse signals, and the outputs are connected to the receiving unit. It is additionally equipped with inverters, the output of each of which is connected to the second input of the corresponding isolation unit. Moreover, the input of the second inverter is connected to the output of the first pulse signal source, the input of the third inverter to the output of the second pulse signal source, and the input of the first to the output of the third pulse signal source.

However, in this device, the serviceability of isolation blocks is not controlled.

It is also known "Device for decoding pulse signals of electrical centralization (copyright certificate No. 1393698, B61L 1/20, priority 10.28.85), containing a pulse voltage shaper, the output of which is connected to the input of the voltage multiplier and the actuator, characterized in that, in order to increase reliability, it is equipped with an additional pulse voltage driver and a key element made in the form of a field effect transistor, the source of which is connected to the output of the voltage multiplier, drain

connected to the actuator, and the shutter is connected to the output of the additional pulse voltage driver.

However, this device requires the use of a double-wound polarized relay.

Also known are actuator switching devices, (“Methods for constructing safe microelectronic systems of railway automation, edited by V. V. Sapozhnikov, M., Transnort, 1995, pp. 252-262, Fig. 8.3, 8.5, 8.7, 8.8, 8.16 ) They contain, as a rule, transformer or capacitor galvanic isolation. Pulse transformers are non-technological elements. In galvanic capacitor isolation, it is required to use a polarized relay with an asymmetric failure.

Thus, in these devices there is a transformer, inductor, double-wound polarized relay, and also uses a complex voltage multiplication scheme.

Also known is a “Device for activating an executive relay of railway automation (copyright certificate No. 1588615, B61L 19/14, НОЗК 19/23, priority July 27, 87), containing pulse signal sources, inverters, an executive unit, to the input of which the units are connected by outputs isolation, each of which has a capacitor and a diode connected in series, one of the plates of which and the other output are the inputs of the isolation blocks, some of which are connected through inverters to one of the outputs, and the other to other outputs of the source of impulses pure signals. In this case, the isolation blocks are additionally equipped with optocouplers, the LED of one of which is connected through a resistor parallel to the diode of one of the isolation blocks. Another isolation unit has additional diodes and a capacitor connected in series with one of the diodes, connected to the other output of the first diode of its isolation unit with one of the outputs, and the other through the second

additional diode - to one of the terminals of the optocoupler LED connected through a third additional diode and another resistor parallel to the first diode. Another lining of the additional capacitor forms the third input of this isolation block, which is connected to one of the sources of impulse signals, which is connected to the inverter of the first isolation block, and their outputs are formed by phototransistors of the isolation blocks.

However, this device also uses a double-wound polarized relay, and in addition, a break in the output circuits of the optocouplers is not controlled. In addition, in the absence of pulses at two of the three inputs, the LEDs are affected by the charge voltage of the capacitors, approximately two times less. As a result, the optocouplers do not switch, and the executive relay releases the anchor. Twice reducing the voltage is not enough, because optocouplers have a greater variation in sensitivity.

The closest in technical essence and the achieved effect to the claimed noisy model is “A device for activating executive relays of railway automation (utility model certificate No. 14368, B61L 19/14, NOZK 19/23, priority 03.20.2000). It contains two sources of information made in the form of microprocessor-based computing channels for receiving paraphase signals, two channels consisting of serially connected galvanically isolated input converters, decoders for phase signals, output converters with galvanic isolation, matched pairs of output relays and executive relays, and also pulse generators in each channel connected to the second inputs of the paraphase signal decoders. Each channel of this device is equipped with an input sets control module and a common for two channels of control relays for pairs of output relays and admissibility of input sets, and the inputs of the input sets control modules are connected to the outputs of the input

u; (

4 converters, and the outputs of the control modules of the input sets are connected to the inputs

decoders of paraphase control signals, by the way, the control relays of the input sets are connected to the outputs of the output control converters, and the control relays of the consistency of pairs of output relays and the admissibility of the input sets are connected to the power source through the series-connected switching contacts of the matched pairs of output relays and the relay of control of the input sets, as well as through own front contact.

However, in this device, the input information is not duplicated, and the output information may be realized if the command is output incorrectly in each channel and the information between the channels is inconsistent, so the responsibility of the input information displayed on the ARM-DSP monitors is insufficient

The task to which the claimed utility model is aimed is to increase the safety of train traffic by increasing the responsibility of the input information issued to the ARM-DSP monitors and the safe implementation of the commands entered by the DSP, which are necessary for controlling the railway station.

The technical result that can be obtained using the utility model is that the input information is duplicated, and the output information is not realized if the command is output incorrectly in each channel and the information between the channels is inconsistent.

The problem is solved due to the fact that in the device of the automated workstation of the duty station for the management of the railway station, containing two channels, each of which includes a series of critical signal input module, the source of which is switching contacts, as well as an industrial computer and a critical command output module, which controls the windings of the output relays, as well as the duty station’s own workplace, including a programmable functional keyboard connected to odes

5

two industrial computers and monitors connected to the outputs of the industrial computers of the standby duty station and a safe relay-contact comparison circuit included between the poles of the power supply, the critical command output module of each channel is made up of an information register with a write input, a driver with a read input and a group key with a control input, the listed inputs being connected to the outputs of an industrial computer. The output of the group key is connected to the output elements. In addition, the industrial computers of the duty station are connected to each other and to the industrial computer of each channel. As well as a safe relay-contact comparison circuit, a common monitoring relay has been introduced, normally closed contacts of which are included in the control circuit of the channel consistency monitoring relay, and switching contacts are connected between the power source and the inputs of the railway automation modules.

Thus, increasing the responsibility of input information is achieved due to the presence of two channels for its processing and presentation, and output information for controlling a railway station is achieved by controlling the output information in each channel and the mismatch of information between the channels.

The essence of the utility model is illustrated in the drawing, which shows a structural diagram of the device.

The device for the automated workstation of the duty station for managing the railway station (AWP-DSP) includes the following elements:

two channels, each of which contains critical signal input modules (MOC) 1, an industrial computer (PC) 2 and critical command output modules (IOC) 3;

the duty station workstation 4, which contains a programmable functional keyboard 5, two industrial computers 6, 7 and two monitors 8.9;

comparison circuit 10 safe relay contact.

The responsible command modules (IOC) 3 contain registers RG 11, shapers (RC / TF) 12, group keys (CC) 13 and output elements 14.

Sources of input information are switching contacts OS And ... OS In, OS21 ... OS2p - 15 of railway automation, and the output information is recorded on the output relays OK11 ... OK1p, OK21 ... OK2p, KVN 1, KVN2 -16.

Comparison scheme 10 safe relay contact made on the contacts of the output relays of both channels OK11 ... OK1p, OK21 ... OK2p, KVN1, KVN2 - 16, control relays VOK 17 (enable command), OK 18 (responsible team), KSK 19 (control of channel consistency) and OCD 20 (general control relay), and the executive relays are OKI ... OKp -21.

The device of the automated workstation of the duty station for managing the railway station (AWP-DSP) works as follows.

The inputs of both channels are supplied with voltage from the switching contacts of the railway automation 15. Industrial computers NK 6,7 process the input information and present it on the monitors 8, 9 of the workstation of the duty station 4 AWS SDS. Based on the information presented, the station attendant, using the programmable keyboard 5, enters control commands into the industrial computers of PC 6.7, which transmits them to the critical command modules (IOC) 3, which control the output relays OKI ... OKIп, ОК21 ... ОК2п , KVN1, KVN2. -16. In the responsible command output module (IOC) 3, the RECORD signal from the industrial PC 2 computer stores the input information in the register RG-11, which, through the READ signal from the industrial computer 2, is supplied to the industrial PC 2 computer via the RC / TF-12 driver. This information is compared in PC 2 and if it matches, the group key GK -13 is opened and the commands are transmitted to the output relays 14. Thus, the responsibility of the information increases. Comparison scheme 10 safe relay contact ensures the correct

the operation of the executive relays OK1 ... OKp - 16. In case of any inconsistent work, the general monitoring relay OKR -20, connected through a serial circuit of contacts OKI, OK21, ... OKln, OK2p, KVN1, KVN2 -16, is de-energized, while it is also de-energized KSK-19 relay, whose contact disconnects the executive relays OK1 ... OKp -21.

The switching contacts of the OCR -20 relay connected to the inputs of the modules of critical signals MOS 1 of both channels, through the industrial computers 6.7, display on the monitors the alarm state of the OCR -20 relay.

The VOKN button, the BOK -17 and OK -18 relays are used to force the relay KSK -19 to be installed under current, if it is de-energized for one reason or another.

Claims (1)

The device of the automated workstation of the duty station for managing the railway station (ARM-DSP), containing two channels, each of which includes a serially connected module for inputting critical signals, an industrial computer and a module for outputting critical commands, as well as the workstation of the person on duty, including a programmable functional keyboard, connected to the inputs of two industrial computers, and monitors connected to the outputs of industrial computers of the duty station and a comparison circuit a safe relay contact connected between the poles of the power source, characterized in that the critical command output module of each channel is made up of an information register with a write input, a driver with a read input and a group key with a control input, and these inputs are connected to the outputs of an industrial computer, and the group key output is connected to the output elements, in addition, the industrial computers of the duty station are connected to each other and to the industrial computer of each channel, and a comparison circuit introduced general control relay, the normally closed contacts of which are included in the relay control channel coherence control circuit, and the switching contacts connected between the power supply and inputs railway automation modules.