CN113467364B

CN113467364B - Subway platform door PEDC emergency device

Info

Publication number: CN113467364B
Application number: CN202110875773.4A
Authority: CN
Inventors: 王潇; 王尧; 李俊勇; 赵浚丞; 吴发明; 侯涛; 罗煜; 宋育成; 锁星辉; 彭龙; 林�建
Original assignee: Chengdu Metro Operation Co ltd
Current assignee: Chengdu Metro Operation Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2024-03-19
Anticipated expiration: 2041-07-30
Also published as: CN113467364A

Abstract

The invention provides a PEDC emergency device for a subway platform door, and relates to the technical field of subway emergency. The subway platform door PEDC emergency device receives the door opening and closing signal through the door opening and closing signal receiving circuit, and controls the corresponding trigger sub-circuit to be conducted according to the source of the door opening and closing signal to generate a trigger signal; the corresponding door opening logic sub-circuit is controlled to be conducted through the door opening command logic circuit according to the trigger signal, and a door opening command conducting signal is generated; the door closing command logic circuit controls the corresponding door closing logic sub-circuit to be conducted according to the trigger signal, and generates a door closing command conduction signal; a door opening command line which is controlled to be conducted according to a door opening command conduction signal; and the door closing command line is controlled to be conducted according to the door closing command conduction signal. The device can enable the three-level control (SIG, PSL, IBP) to continue to work so as to ensure stable operation and driving safety.

Description

Subway platform door PEDC emergency device

Technical Field

The invention relates to the technical field of subway emergency, in particular to a subway platform door PEDC emergency device.

Background

At present, an integrated platform door unit controller (Platform Electrical Door Controller, PEDC) is generally adopted as a core logic control unit of a subway platform door, and the problems of invalid three-level control (SIG, PSL, IBP), interruption of a safety loop, invalid interlocking release and the like can be caused after the PEDC is damaged, so that the operation stability and the driving safety are seriously influenced.

Disclosure of Invention

The invention aims to provide a subway platform door PEDC emergency device which is used for solving the problems that in the prior art, after PEDC is damaged, three-level control (SIG, PSL, IBP) is invalid, a safety loop is interrupted, interlocking is released to be invalid and the like, and the operation stability and the driving safety are seriously influenced.

The embodiment of the application provides a subway platform door PEDC emergency device, which comprises a door opening and closing signal receiving circuit, a door opening command logic circuit, a door closing command logic circuit, a door opening command circuit and a door closing command circuit, wherein the door opening command logic circuit and the door closing command logic circuit are connected with the door opening and closing signal receiving circuit, the door opening command circuit is connected with the door opening command logic circuit, and the door closing command circuit is connected with the door closing command logic circuit; wherein,

the switch door signal receiving circuit is used for receiving the switch door signal and controlling the corresponding trigger sub-circuit to be conducted according to the source of the switch door signal so as to generate a trigger signal;

the door opening command logic circuit is used for controlling the corresponding door opening logic sub-circuit to be conducted according to the trigger signal and generating a door opening command conduction signal;

the door closing command logic circuit is used for controlling the corresponding door closing logic sub-circuit to be conducted according to the trigger signal and generating a door closing command conduction signal;

The door opening command line is used for controlling the door opening command line to be conducted according to the door opening command conduction signal;

and the door closing command line is used for controlling the door closing command line to be conducted according to the door closing command conduction signal.

In the implementation process, all main control in the circuit is controlled by adopting the relay, and the logic control sequence is built by adopting the relay, so that the control on the platform door is more stable, and the control logic of the device is clearer, the principle is clearer and the reliability is higher because a large number of boards are simplified; and meanwhile, the cost can be reduced. The system adopts SIG door opening logic sub-circuit, PSL door opening logic sub-circuit, IBP door opening logic sub-circuit and IBP head and tail door opening logic sub-circuit to control, thus obtain the three-stage control logic command loop, the loop adopts the interlocking logic control mode, the door is opened and closed through the control signal, the operation panel is operated on the spot, the operation panel is operated remotely, the auxiliary contact of the function relay controls the three-stage linkage priority of the platform door system, because the platform door is divided into five control modes of three stages, the logic control priority is manual, platform and system in sequence from high to low; the control mode priority is manual unlocking, an on-site control box, a remote control panel, an on-site control panel and a signal system door opening and closing signal in sequence from high to low, and for strict priority control level, the interlocking loop is utilized: when the signal switch door, on-site operation dish and remote operation dish can in time be removed and by the higher operation of authority, when the on-site control dish operation, signal system's switch door signal can not be cut, but remote operation dish can in time be removed and control, when the remote operation dish operation, signal system and on-site control dish can not remove switch door command to ensured the logical nature and the stability of tertiary operation authority. When the PEDC is damaged, the device can enable the three-level control (SIG, PSL, IBP) to work continuously so as to ensure stable operation and running safety.

Based on the first aspect, in some embodiments of the invention, the switch door signal receiving circuit includes a SIG trigger sub-circuit including a relay S1 and a relay S3;

the relays S1 are respectively connected to a first group of door opening control command lines of the signal automatic control system;

the relays S3 are respectively connected to a first set of door closing control command lines of the signal automatic control system.

Based on the first aspect, in some embodiments of the invention, the door opening and closing signal receiving circuit further comprises a PSL-H trigger sub-circuit, the PSL-H trigger sub-circuit comprising a relay PEB1, a relay PEB2, a relay PIO, a relay PLO, a relay PLC and a PSL-H console;

the relay PEB1, the relay PEB2 and the PSL-H operation table are sequentially connected in series;

the relay PIO, the relay PEB2 and the PSL-H operation table are sequentially connected in series;

the relay PLO, the relay PEB1 and the PSL-H operation table are sequentially connected in series;

the relay PLC, the relay PEB1 and the PSL-H operation table are sequentially connected in series.

Based on the first aspect, in some embodiments of the invention, the switch door signal receiving circuit further comprises a PSL-T trigger sub-circuit;

the relay PEB2, the relay PEB1 and the PSL-H operation table are sequentially connected in series;

the relay PIO, the relay PEB1 and the PSL-H operation table are sequentially connected in series;

The relay PLO, the relay PEB2 and the PSL-H operation table are sequentially connected in series;

the relay PLC, the relay PEB2 and the PSL-H operation table are sequentially connected in series.

Based on the first aspect, in some embodiments of the invention, the switch door signal receiving circuit further comprises an IBP trigger sub-circuit; the IBP trigger sub-circuit comprises a relay IEB1, a relay IEB2, a relay IEB3, a relay IO, a relay IC, a relay IEO, a relay IEC and an IBP operation console; wherein,

the relay IEB1, the relay IEB2 and the relay IEB3 are connected in series with the IBP operation table; relay IEB1, relay IEB2 and relay IEB3 are connected in parallel with each other;

the relay IO, the relay IEB1 and the IBP operation table are sequentially connected in series;

the relay IC, the relay IEB1 and the IBP operation table are sequentially connected in series;

the relay IEO, the relay IEB2 and the IBP operation table are sequentially connected in series;

the relay IEC, the relay IEB2 and the IBP operation table are sequentially connected in series.

Based on the first aspect, in some embodiments of the invention, the door opening command logic circuit includes a SIG door opening logic sub-circuit, a PSL door opening logic sub-circuit, an IBP door opening logic sub-circuit, and an IBP head-to-tail door opening logic sub-circuit; the SIG door opening logic sub-circuit, the PSL door opening logic sub-circuit, the IBP door opening logic sub-circuit and the IBP head and tail door opening logic sub-circuit are mutually connected in parallel;

The SIG door opening logic sub-circuit comprises a relay LCGO, a relay PEB2, a relay PEB1, a relay IEB, a relay S3 and a relay S1 which are sequentially connected in series;

the PSL door opening logic sub-circuit comprises a relay LCLO, wherein the relay LCLO, a relay PEB1, a relay LCEC, a relay IEB, a relay PLC and a relay PLO are sequentially connected in series; the relay PEB2 is connected with the relay PEB1 in parallel, and the relay LCLO is connected with the relay PLO in parallel;

the IBP door opening logic sub-circuit comprises a relay LCPO, wherein the relay LCPO, a relay IEB3, a relay IC and a relay IO are sequentially connected in series; the relay LCPO is connected with the relay IO in parallel;

the IBP head-end opening logic sub-circuit comprises a relay LCEO, wherein the relay LCEO, a relay IEC and a relay IEO are sequentially connected in series; the relay LCEO is connected in parallel with the relay IEO.

Based on the first aspect, in some embodiments of the invention, the door open command logic comprises a SIG door close logic sub-circuit, a PSL door close logic sub-circuit, an IBP door close logic sub-circuit, and an IBP head-to-tail door open logic sub-circuit; the SIG door closing logic sub-circuit, the PSL door closing logic sub-circuit, the IBP door closing logic sub-circuit and the IBP head-tail door opening logic sub-circuit are mutually connected in parallel;

the SIG door closing logic sub-circuit comprises a relay LCGC, wherein the relay LCGC, a relay PEB2, a relay PEB1, a relay IEB2, a relay S1 and a relay S3 are sequentially connected in series;

The PSL door closing logic sub-circuit comprises a relay LCLC, a relay PEB1, a relay LCEC, a relay IEB2, a relay PLO and a relay PLC which are sequentially connected in series; the relay PEB2 is connected with the relay PEB1 in parallel, and the relay LCLC is connected with the relay PLC in parallel;

the IBP door closing logic sub-circuit comprises a relay LCPC, wherein the relay LCPC, a relay IEB3, a relay IO and a relay IC are sequentially connected in series; the relay LCPC is connected with the relay IC in parallel;

the IBP head-tail end door closing logic sub-circuit comprises a relay LCEC, and the relay LCEC, the relay IEO and the relay IEC are sequentially connected in series.

Based on the first aspect, in some embodiments of the invention, the relay LCGO, the relay LCLO, the relay LCPO, and the relay LCEO are disposed on the door opening command line; the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO are mutually connected in parallel;

the relay LCGC, the relay LCLC, the relay LCPC and the relay LCEC are arranged on the door closing command line; the relay LCGC, the relay LCLC, the relay LCPC, and the relay LCEC are connected in parallel with each other.

Based on the first aspect, in some embodiments of the invention, a safety loop circuit is further included, the safety loop circuit including relay PO, relay ADCL1, and relay ADCL2;

The relay PO, the relay ADCL1 and the relay ADCL2 are connected with the door control unit;

the relay ADCL1 is connected in parallel with the SIG signal processing system.

Based on the first aspect, in some embodiments of the invention, an interlock release switch is further included, the interlock release switch being in parallel with the relay PIO, the relay PIO being in parallel with the SIG signal processing system.

The embodiment of the invention has at least the following advantages or beneficial effects:

the embodiment of the invention provides a PEDC emergency device for a subway platform door, wherein all main control in a circuit is controlled by adopting a relay, and a logic control sequence is built by adopting the relay, so that the control on the platform door is more stable, and the device has clearer control logic, clearer principle and higher reliability because a large number of boards are simplified; and meanwhile, the cost can be reduced. The system adopts SIG door opening logic sub-circuit, PSL door opening logic sub-circuit, IBP door opening logic sub-circuit and IBP head and tail door opening logic sub-circuit to control, thus obtain the three-stage control logic command loop, the loop adopts the interlocking logic control mode, the door is opened and closed through the control signal, the operation panel is operated on the spot, the operation panel is operated remotely, the auxiliary contact of the function relay controls the three-stage linkage priority of the platform door system, because the platform door is divided into five control modes of three stages, the logic control priority is manual, platform and system in sequence from high to low; the control mode priority is manual unlocking, an on-site control box, a remote control panel, an on-site control panel and a signal system door opening and closing signal in sequence from high to low, and for strict priority control level, the interlocking loop is utilized: when the signal switch door, on-site operation dish and remote operation dish can in time be removed and by the higher operation of authority, when the on-site control dish operation, signal system's switch door signal can not be cut, but remote operation dish can in time be removed and control, when the remote operation dish operation, signal system and on-site control dish can not remove switch door command to ensured the logical nature and the stability of tertiary operation authority. When the PEDC is damaged, the device can enable the three-level control (SIG, PSL, IBP) to work continuously so as to ensure stable operation and running safety. By adopting the relay PO, the relay ADCL1 and the relay ADCL2 as core devices for control, after all doors of a platform are closed and locked, the closed and locked loop power supply supplies power to the closed and locked relay coil through the locking contact point of the door control unit, the relay acts after power is obtained, the relay contacts are correspondingly closed or opened, the positive and negative poles of a safety loop from a signal are respectively conducted, a high-level signal is transmitted to a signal system, and the closed and locked loop is transmitted to the signal automatic control system through the shielding door. Therefore, after the PEDC is damaged, the system can ensure that the safety loop and the interlocking are released from normal operation, and further ensure stable operation and driving safety. The full-open and full-close states of the platform door can be monitored through the safety loop circuit, and when the full-close state is abnormal, the SIG signal processing system can timely receive the high-level signal, so that the abnormal state is obtained, further actions can be timely made, dangers are avoided, and driving safety is guaranteed. By arranging the interlocking release circuit, when the interlocking contacts, the SIG signal processing system can acquire and act in time, so that the driving safety is ensured. Meanwhile, the interlocking unlocking operation can be performed without a PSL-H operation table by arranging the interlocking unlocking switch, the SIG signal processing system can acquire and act in time, and the driving safety is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of an emergency device for a subway platform door PEDC provided by an embodiment of the invention;

fig. 2 is a circuit diagram of a SIG trigger sub-circuit provided by an embodiment of the present invention;

FIG. 3 is a circuit diagram of a PSL-H trigger sub-circuit according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of a PSL-T trigger sub-circuit according to an embodiment of the present invention;

fig. 5 is a circuit diagram of an IBP trigger sub-circuit according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of a gate-on command logic circuit according to an embodiment of the present invention;

FIG. 7 is a circuit diagram of a door closing command logic circuit according to an embodiment of the present invention;

FIG. 8 is a circuit diagram of a door opening/closing command circuit according to an embodiment of the present invention;

FIG. 9 is a circuit diagram of a close lock and security circuit according to an embodiment of the present invention;

Fig. 10 is a circuit diagram of a power supply circuit according to an embodiment of the present invention;

fig. 11 is a functional schematic diagram of implementation of the PEDC emergency device for subway platform doors according to an embodiment of the present invention.

Icon: 1-a door opening and closing signal receiving circuit; 2-door open command logic; 3-door closing command logic; 4-a door opening command line; 5-door closing command line.

Detailed Description

Examples

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The various embodiments and features of the embodiments described below may be combined with one another without conflict.

Referring to fig. 1, fig. 1 is a block diagram of a PEDC emergency device for a subway platform door according to an embodiment of the invention. The subway platform door PEDC emergency device comprises a door opening and closing signal receiving circuit 1, a door opening command logic circuit 2, a door closing command logic circuit 3, a door opening command circuit 4 and a door closing command circuit 5, wherein the door opening command logic circuit 2 and the door closing command logic circuit 3 are connected with the door opening and closing signal receiving circuit 1, the door opening command circuit 4 is connected with the door opening command logic circuit 2, and the door closing command circuit 5 is connected with the door closing command logic circuit 3; wherein,

the switch door signal receiving circuit 1 is used for receiving the switch door signal and controlling the corresponding trigger sub-circuit to be conducted according to the source of the switch door signal so as to generate a trigger signal;

Referring to fig. 2, fig. 2 is a circuit diagram of a SIG trigger sub-circuit according to an embodiment of the present invention. The switch door signal receiving circuit 1 comprises a SIG trigger sub-circuit, wherein the SIG trigger sub-circuit comprises a relay S1 and a relay S3; the relay S1 and the relay S3 can be a relay with model number MY2N-J, and the relay comprises 4 normally-open contacts and 4 normally-closed contacts.

The relays S1 are respectively connected to a first group of door opening control command lines of the signal automatic control system; both ends of the coil of the relay S1 are respectively connected to a first group of door opening control command lines of the signal automatic control system. The first group of door opening control command lines comprise two groups of normally open contacts, two ends of a coil of the relay S1 are respectively connected with one ends of the two groups of normally open contacts, and the other ends of the two groups of normally open contacts are respectively connected to a power supply +24V and 0V. When the first group of door opening control command lines receive signals to enable the two groups of normally open contacts to be closed, the coil of the relay S1 is electrified, the auxiliary contacts act, and accordingly trigger signals are generated, and the whole side sliding door is controlled to be opened through on-off of the auxiliary contacts.

The coil of the relay S1 is connected with the diode D1 in parallel, the negative electrode of the diode D1 is connected with the A1 end of the relay S1, voltage and current mutation can be prevented, a release reverse current path is provided for the inductance coil of the relay S1, and accordingly damage to the relay S1 is avoided.

The coil of the relay S1 is also connected in parallel with a digital voltmeter V1, so that the switch door voltage from the signal automatic control system can be monitored in real time to assist in positioning the fault position of the interface.

The relays S3 are respectively connected to a first set of door closing control command lines of the signal automatic control system. Both ends of the coil of the relay S3 are respectively connected to a first group of door closing control command lines of the signal automatic control system. The first group of door closing control command lines comprise two groups of normally open contacts, two ends of a coil of the relay S3 are respectively connected with one ends of the two groups of normally open contacts, and the other ends of the two groups of normally open contacts are respectively connected to a power supply +24V and 0V. When the first group of door closing control command lines receive signals to enable the two groups of normally open contacts to be closed, the coil of the relay S3 is powered on, the auxiliary contacts act, and accordingly trigger signals are generated, and the whole side sliding door is controlled to be closed through on-off of the auxiliary contacts.

The coil of the relay S3 is connected with the diode D3 in parallel, the negative electrode of the diode D3 is connected with the A1 end of the relay S3, abrupt change of voltage and current can be prevented, a reverse current release path is provided for an inductance coil of the relay S3, and accordingly damage to the relay S3 is avoided.

The coil of the relay S3 is also connected in parallel with a digital voltmeter V2, so that the switch door voltage from the signal automatic control system can be monitored in real time to assist in positioning the fault position of the interface.

The SIG trigger sub-circuit adopts two independent safety relays as core control devices, the two relays are independent and do not interfere with each other, and can simultaneously receive a door opening and closing command from the signal automatic control system (a response mechanism is completed by a logic part of the door control unit). When a door opening command is received, firstly, a shielding door specialty provides a group of voltages for a signal automatic control system, a first group of door opening control command lines fed back through signals are connected with a door opening relay coil, when signals from the automatic control system when the door opening command is at a high level are received, a relay S1 coil is electrified, an auxiliary contact acts, the whole sliding door is controlled to be opened through the on-off of the auxiliary contact, when the door is closed, a first group of door closing control command lines fed back through signals are connected with a door closing relay coil, when signals from the signal system when the door closing command is at the high level are received, the coil of a relay S3 is electrified, the auxiliary contact acts, so that a trigger signal is generated, and the whole sliding door is controlled to be closed through the on-off of the auxiliary contact.

Referring to fig. 3, fig. 3 is a circuit diagram of a PSL-H trigger sub-circuit according to an embodiment of the present invention. The switch door signal receiving circuit 1 further comprises a PSL-H triggering sub-circuit, wherein the PSL-H triggering sub-circuit is used for controlling PSL triggering of the locomotive. The PSL-H trigger sub-circuit comprises a relay PEB1, a relay PEB2, a relay PIO, a relay PLO, a relay PLC and a PSL-H operation table;

The relay PEB1, the relay PEB2 and the PSL-H operation table are sequentially connected in series; one end of the coil of the relay PEB1 is connected in series with a set of normally-closed contacts of the relay PEB2 and then connected to an operation permission switch on the PSL-H operation table. Relay PEB1 and relay PEB2 may employ a relay with a signal of SF40, pin 6 of relay PEB2 is connected to pin A1 of relay PEB1, pin 5 of relay PEB2 is connected to one end of an operation permission switch of the PSL-H console, the other end of the operation permission switch is connected to +24v of power supply, and pin A2 of relay PEB1 is connected to 0V of power supply. This forms a head operating loop. When the operation permission switch is closed, the head operation running loop is conducted, the relay PEB1 coil is electrified, and the auxiliary contact acts.

The relay PIO, the relay PEB2 and the PSL-H operation table are sequentially connected in series; one end of a coil of the relay PIO is connected with the other group of normally-closed contacts of the relay PEB2 in series and then connected to an interlocking release switch on the PSL-H operation table. The relay PIO and the relay PEB2 can adopt a relay with a signal of SF40, the No. 18 pin of the relay PEB2 is connected with the A1 pin of the relay PIO, the No. 17 pin of the relay PEB2 is connected with one end of an interlocking contact switch of the PSL-H operation table, the other end of the interlocking contact switch is connected to a power supply +24V, and the A2 pin of the relay PIO is connected to a power supply 0V. This creates a head interlock release circuit. When the interlocking contact switch is closed, the head interlocking release loop is conducted, the relay PIO coil is electrified, and the auxiliary contact acts.

The relay PLO, the relay PEB1 and the PSL-H operation table are sequentially connected in series; one end of a coil of the relay PLO is connected with a group of normally open contacts of the relay PEB1 in series and then connected to a door opening button on the PSL-H operation table. The relay PLO and the relay PEB1 can adopt a relay with SF40 signals, the No. 14 pin of the relay PEB1 is connected with the A1 pin of the relay PLO, the No. 13 pin of the relay PEB1 is connected with one end of a door opening button of a PSL-H operating platform, the other end of the door opening button is connected to +24V of a power supply, and the A2 pin of the relay PLO is connected to 0V of the power supply. Thus forming a head opening loop. When the door opening button is closed, after the relay PEB1 is powered on, the head door opening loop is conducted, the relay PLO coil is powered on, and the auxiliary contact acts, so that a trigger signal is generated.

The relay PLC, the relay PEB1 and the PSL-H operation table are sequentially connected in series; one end of a coil of the relay PLC is connected with the other group of normally open contacts of the relay PEB1 in series and then connected to a door closing button on the PSL-H operation table. The relay PLC and the relay PEB1 can adopt a relay with SF40 signals, the No. 10 pin of the relay PEB1 is connected with the A1 pin of the relay PLC, the No. 9 pin of the relay PEB1 is connected with one end of a door closing button of the PSL-H operating platform, the other end of the door closing button is connected to +24V of a power supply, and the A2 pin of the relay PLC is connected to 0V of the power supply. Thus forming a head closing circuit. When the door closing button is closed, after the relay PEB1 is powered on, the head door closing loop is conducted, the relay PLC coil is powered on, and the auxiliary contact acts, so that a trigger signal is generated.

The coil of the relay PEB1, the relay PIO, the relay PLO and the relay PLC is respectively connected with a diode D7, a diode D8, a diode D9 and a diode D10 in parallel, and the negative terminals of the diode D7, the diode D8, the diode D9 and the diode D10 are connected with the A1 terminal of the relay. The diode is connected in parallel with the coil of the relay to prevent voltage and current mutation and provide a release reverse current path for the inductance coil of the relay, so that the relay is prevented from being damaged.

The permission switch, the interlocking contact switch, the door opening button and the door closing button are respectively triggered on the PSL-H operation table, so that the coils of the relay PEB1, the relay PIO, the relay PLO and the relay PLC are respectively electrified, and the auxiliary contacts act, thereby generating trigger signals.

Referring to fig. 4, fig. 4 is a circuit diagram of a PSL-T trigger sub-circuit according to an embodiment of the present invention. The switch door signal receiving circuit 1 also comprises a PSL-T trigger sub-circuit;

the relay PEB2, the relay PEB1 and the PSL-H operation table are sequentially connected in series; one end of the coil of the relay PEB2 is connected in series with a set of normally-closed contacts of the relay PEB1 and then connected to the operation-permitting switch of the PSL-H operation table. Relay PEB1 and relay PEB2 may employ a relay with a signal of SF40, pin No. 18 of relay PEB1 is connected to pin A1 of relay PEB2, pin No. 17 of relay PEB1 is connected to one end of an operation permission switch of the PSL-H console, the other end of the operation permission switch is connected to +24v of power supply, and pin A2 of relay PEB2 is connected to 0V of power supply. Thus forming a tail operation running loop. When the operation permission switch is closed, the tail operation loop is conducted, the relay PEB2 coil is electrified, and the auxiliary contact acts.

The relay PIO, the relay PEB1 and the PSL-H operation table are sequentially connected in series; one end of a coil of the relay PIO is connected with the other group of normally-closed contacts of the relay PEB1 in series and then connected to an interlocking contact switch of the PSL-H operation table. The relay PIO and the relay PEB1 can adopt a relay with a signal of SF40, the No. 16 pin of the relay PEB1 is connected with the A1 pin of the relay PIO, the No. 15 pin of the relay PEB1 is connected with one end of an interlocking contact switch of a PSL-H operation table, the other end of the interlocking contact switch is connected to a power supply +24V, and the A2 pin of the relay PIO is connected to a power supply 0V. This creates a tail interlock release loop. When the interlocking contact switch is closed, the tail interlocking release loop is conducted, the relay PIO coil is electrified, and the contact is assisted.

The relay PLO, the relay PEB2 and the PSL-H operation table are sequentially connected in series; one end of a coil of the relay PLO is connected with a group of normally open contacts of the relay PEB2 in series and then connected to a door opening button of the PSL-H operation table. The relay PLO and the relay PEB2 can adopt a relay with SF40 signals, the No. 10 pin of the relay PEB2 is connected with the A1 pin of the relay PLO, the No. 9 pin of the relay PEB2 is connected with one end of a door opening button of the PSL-H operating platform, the other end of the door opening button is connected to +24V of a power supply, and the A2 pin of the relay PLO is connected to 0V of the power supply. Thus forming a tail door opening loop. When the door opening button is closed, after the relay PEB2 is powered on, the tail door opening loop is conducted, the relay PLO coil is powered on, and the auxiliary contact acts, so that a trigger signal is generated.

The relay PLC, the relay PEB2 and the PSL-H operation table are sequentially connected in series. The door closing button relay PLC and the relay PEB2 which are connected to the PSL-H operation table after one end of a coil of the relay PLC is connected in series with the other group of normally open contacts of the relay PEB2 can adopt a relay with the model SF40, the No. 20 pin of the relay PEB2 is connected with the A1 pin of the relay PLC, the No. 19 pin of the relay PEB2 is connected with one end of the door closing button of the PSL-H operation table, the other end of the door closing button is connected to +24V of a power supply, and the A2 pin of the relay PLC is connected to 0V of the power supply. Thus forming a tail gate loop. When the door closing button is closed, the relay PEB2 is powered on, the tail door closing loop is conducted, the relay PLC coil is powered on, and the auxiliary contacts act, so that a trigger signal is generated.

The coils of the relay PEB2, the relay PIO, the relay PLO and the relay PLC are respectively connected with a diode D21, a diode D22, a diode D23 and a diode D24 in parallel, and the negative terminals of the diode D21, the diode D22, the diode D23 and the diode D24 are connected with the A1 terminal of the relay. The diode is connected in parallel with the coil of the relay to prevent voltage and current mutation and provide a release reverse current path for the inductance coil of the relay, so that the relay is prevented from being damaged.

The permission switch, the interlocking contact switch, the door opening button and the door closing button are respectively triggered on the PSL-H operation table, so that the coils of the relay PEB2, the relay PIO, the relay PLO and the relay PLC are respectively electrified, and the auxiliary contacts act, thereby generating trigger signals.

Referring to fig. 5, fig. 5 is a circuit diagram of an IBP trigger sub-circuit according to an embodiment of the present invention.

The switch door signal receiving circuit 1 further comprises an IBP trigger sub-circuit; the IBP trigger sub-circuit comprises a relay IEB1, a relay IEB2, a relay IEB3, a relay IO, a relay IC, a relay IEO, a relay IEC and an IBP operation console; wherein,

the relay IEB1, the relay IEB2 and the relay IEB3 are connected in series with the IBP operation table; relay IEB1, relay IEB2 and relay IEB3 are connected in parallel with each other; one end of each of the coil of the relay IEB1, the coil of the relay IEB2 and the coil of the relay IEB3 are connected with the IBP operation table in series, and the other end of each of the coil of the relay IEB3 is connected to a power supply 0V. The IBP operation allowing switch with the A1 pin of relay IEB1, relay IEB2, relay IEB3 connected in series with the IBP operation table has one end connected, the IBP operation allowing switch has the other end connected to +24V power supply, and the A2 pin of relay IEB1, relay IEB2, relay IEB3 is connected to 0V power supply. Pressing IBP operation allows the switch, relay IEB1, relay IEB2, relay IEB3 to be powered.

The relay IO, the relay IEB1 and the IBP operation table are sequentially connected in series; one end of a coil of the relay IO is connected with a group of normally open contacts of the relay IEB1 in series and then connected to an IBP door opening switch of the IBP operation platform. The relay IO, the relay IEB1 and the relay IEB2 can adopt SF40 relays, the A1 pin of the relay IO is connected with the No. 7 pin of the relay IEB1, the No. 11 pin of the relay IEB1 is connected with one end of an IBP door opening switch of an IBP operation console, the other end of the IBP door opening switch is connected to +24V of a power supply, and the A2 pin of the relay IO is connected to 0V of the power supply. When the IBP door opening switch is closed, after the relay IEB1 is powered on, the relay IO is powered on, the auxiliary contact acts, and a trigger signal is generated, so that the door opening is controlled.

The relay IC, the relay IEB1 and the IBP operation table are sequentially connected in series; one end of a coil of the relay IC is connected with the other group of normally open contacts of the relay IEB1 in series and then connected to an IBP door closing switch of the IBP operation table. The relay IC can adopt an SF40 relay, the A1 pin of the relay IC is connected with the No. 8 pin of the relay IEB1, the No. 12 pin of the relay IEB1 is connected with one end of an IBP door closing switch of an IBP operation platform, the other end of the IBP door closing switch is connected to a power supply +24V, and the A2 pin of the relay IC is connected to a power supply 0V. When the IBP door closing switch is closed, the relay IEB1 is powered on, the relay IC is powered on, the auxiliary contact acts, and a trigger signal is generated, so that the door closing is controlled.

The relay IEO, the relay IEB2 and the IBP operation table are sequentially connected in series; one end of a coil of the relay IEO is connected with a group of normally open contacts of the relay IEB2 in series and then connected to an IBP head-end door opening button of the IBP operation platform. The relay IEO can adopt a MY2NJ relay, the relay IEB2 can adopt an SF40 relay, the A1 pin of the relay IEO is connected with the No. 5 pin of the relay IEB2, the No. 9 pin of the relay IEB2 is connected with one end of an IBP initial and final door opening button of an IBP operation platform, the other end of the IBP initial and final door opening button is connected to a power supply +24V, and the A2 pin of the relay IEO is connected to a power supply 0V. Pressing the first and last door opening button of IBP, under the condition that relay IEB2 gets the electricity simultaneously, relay IEO gets the electricity, and auxiliary contact acts, generates trigger signal to control first and last door opening.

The relay IEC, the relay IEB2 and the IBP operation table are sequentially connected in series; one end of a coil of the relay IEC is connected with the other group of normally open contacts of the relay IEB2 in series and then connected to an IBP head-end door closing button of the IBP operation table. The relay IEC can adopt a MY2NJ relay, the A1 pin of the relay IEC is connected with the No. 8 pin of the relay IEB2, the No. 12 pin of the relay IEB2 is connected with one end of an IBP head and tail door closing button of an IBP operation table, the other end of the IBP head and tail door closing button is connected to a power supply +24V, and the A2 pin of the relay IEC is connected to a power supply 0V. And pressing an IBP head-end door closing button, and under the condition that the relay IEB2 is powered on, the relay IEC is powered on, the auxiliary contact acts, and a trigger signal is generated, so that the head-end door is controlled to be closed.

The coil of the relay IEB1, the relay IEB3, the relay IO, the relay IC, the relay IEO and the relay IEC is respectively connected with a diode D35, a diode D36, a diode D37, a diode D38, a diode D39 and a diode D40 in parallel, and the negative electrode ends of the diode D35, the diode D36, the diode D37, the diode D38, the diode D39 and the diode D40 are connected with the A1 end of the relay. The diode is connected in parallel with the coil of the relay to prevent voltage and current mutation and provide a release reverse current path for the inductance coil of the relay, so that the relay is prevented from being damaged.

The IBP operation permission switch, the IBP door opening button, the IBP door closing button, the IBP head and tail door opening button and the IBP head and tail door closing button are respectively triggered on the IBP operation platform, so that the coils of the relay IEB1, the relay IEB3, the relay IO, the relay IC, the relay IEO and the relay IEC are respectively powered on, and the auxiliary contacts act, so that a trigger signal is generated.

The door opening command logic circuit 2 is used for controlling the corresponding door opening logic sub-circuit to be conducted according to the trigger signal and generating a door opening command conduction signal;

referring to fig. 6, fig. 6 is a circuit diagram of a gate-on command logic circuit according to an embodiment of the invention.

The door opening command logic circuit 2 comprises a SIG door opening logic sub-circuit, a PSL door opening logic sub-circuit, an IBP door opening logic sub-circuit and an IBP head-tail door opening logic sub-circuit; the SIG door opening logic sub-circuit, the PSL door opening logic sub-circuit, the IBP door opening logic sub-circuit and the IBP head and tail door opening logic sub-circuit are mutually connected in parallel;

The SIG door opening logic sub-circuit comprises a relay LCGO, a relay PEB2, a relay PEB1, a relay IEB, a relay S3 and a relay S1 which are sequentially connected in series; the coil of the relay LCGO, the normally-closed contact of the relay PEB2, the normally-closed contact of the relay PEB1, the normally-closed contact of the relay IEB, the normally-closed contact of the relay S3 and the normally-open contact of the relay S1 are sequentially connected in series. The relay LCGO may employ an SF40 relay, with the A1 pin of the relay LCGO connected to the 11 pin of the relay PEB2, the 12 pin of the relay PEB2 connected to the 11 pin of the relay PEB1, the 12 pin of the relay PEB1 connected to the 9 pin of the relay IEB, the 1 pin of the relay IEB connected to the 5 pin of the relay S3, the 9 pin of the relay S3 connected to the 8 pin of the relay S1, the 12 pin of the relay S1 connected to the power +24v, and the A2 pin of the relay LCGO connected to the power 0V. When the coil of the relay S1 is electrified, a trigger signal is generated, the normally open contact corresponding to the relay S1 is closed, namely the No. 8 pin and the No. 12 pin of the relay S1 are communicated, so that the SIG door opening logic sub-circuit is conducted, the coil of the relay LCGO is electrified, and a door opening command conduction signal is generated. And a coil of the relay LCGO is also connected with a SIG door opening indicator lamp R in parallel and used for displaying the power-on condition of a SIG door opening logic sub-circuit, so that faults can be found conveniently. The relay S3, the relay IEB, the relay PEB1 and the relay PEB3 on the SIG door opening logic sub-circuit are all normally closed contacts, so that the SIG door opening logic sub-circuit is conducted only when a coil of the relay S1 is electrified, and a door opening command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

The PSL door opening logic sub-circuit comprises a relay LCLO, wherein the relay LCLO, a relay PEB1, a relay LCEC, a relay IEB, a relay PLC and a relay PLO are sequentially connected in series; the relay PEB2 is connected with the relay PEB1 in parallel, and the relay LCLO is connected with the relay PLO in parallel; the coil of the relay LCLO, the normally open contact of the relay PEB1, the normally closed contact of the relay LCEC, the normally closed contact of the relay IEB, the normally closed contact of the relay PLC and the normally open contact of the relay PLO are sequentially connected in series, the normally open contact of the relay PEB2 is connected in parallel with the normally open contact of the relay PEB1, and the normally open contact of the relay LCLO is connected in parallel with the normally open contact of the relay PLO. The relay LCLO may employ an SF40 relay, the A1 pin of the relay LCLO is connected to the No. 9 pin of the relay PEB2 and the No. 9 pin of the relay PEB1, the No. 5 pin of the relay PEB2 and the No. 5 pin of the relay PEB1 are connected to the No. 11 pin of the relay LCEC, the No. 3 pin of the relay LCEC is connected to the No. 10 pin of the relay IEB, the No. 2 pin of the relay IEB is connected to the No. 17 pin of the relay PLC, the No. 18 pin of the relay PLC is connected to the No. 8 pin of the relay PLO and the No. 5 pin of the relay LCLO, the No. 7 pin of the relay PLO and the No. 9 pin of the relay LCLO are connected to the power +24v, and the A2 pin of the relay LCLO is connected to the power 0V. When the coil of the relay PEB1 is powered on and the coil of the relay PLO is powered on, the generated trigger signal enables the PSL door opening logic sub-circuit to be conducted, the coil of the relay LCLO is powered on, and therefore a door opening command conducting signal is generated. When the coil of the relay PEB2 is powered on and the coil of the relay PLO is powered on, the generated trigger signal enables the PSL door opening logic sub-circuit to be conducted, the coil of the relay LCLO is powered on, and therefore a door opening command conducting signal is generated. The relay PLC, the relay IEB and the relay LCEC on the PSL door opening logic sub-circuit are normally closed contacts, so that the PSL door opening logic sub-circuit is conducted only when the relay PEB1 coil is powered on and the relay PLO or the relay PEB2 coil is powered on and the relay PLO coil is powered on, and the door opening command conduction signal is generated, so that interference of trigger information generated in other modes is avoided.

The IBP door opening logic sub-circuit comprises a relay LCPO, wherein the relay LCPO, a relay IEB3, a relay IC and a relay IO are sequentially connected in series; the relay LCPO is connected with the relay IO in parallel; the coil of the relay LCPO, the normally open contact of the relay IEB3, the normally closed contact of the relay IC and the normally open contact of the relay IO are sequentially connected in series, and the normally open contact of the relay LCPO is connected in parallel with the normally open contact of the relay IO. The relay LCPO may employ an SF40 relay, the A1 pin of the relay LCPO is connected to the No. 5 pin of the relay IEB3, the No. 9 pin of the relay IEB3 is connected to the No. 9 pin of the relay IC, the No. 1 pin of the relay IC is connected to the No. 5 pin of the relay IO and the No. 5 pin of the relay LCPO, the No. 9 pin of the relay IO and the No. 9 pin of the relay LCPO are connected to the power +24v, and the A2 pin of the relay LCPO is connected to the power 0V. When the coil of the relay IEB3 is powered on and the coil of the relay IO is powered on, the IBP door opening logic sub-circuit is conducted only by generating trigger information, the coil of the relay LCPO is powered on, and therefore a door opening command conduction signal is generated. The relay IC on the IBP door opening logic sub-circuit is normally closed contact connection, so that the IBP door opening logic sub-circuit can be conducted only when the coil of the relay IEB3 is powered on and the coil of the relay IO is powered on, a door opening command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

The IBP head-end opening logic sub-circuit comprises a relay LCEO, wherein the relay LCEO, a relay IEC and a relay IEO are sequentially connected in series; the relay LCEO is connected with the relay IEO in parallel; the coil of the relay LCEO, the normally-closed contact of the relay IEC and the normally-open contact of the relay IEO are sequentially connected in series, and the normally-open contact of the relay LCEO is connected in parallel with the normally-open contact of the relay IEO. The relay LCEO may employ an SF40 relay, the A1 pin of the relay LCEO is connected to the 11 pin of the relay IEC, the 3 pin of the relay IEC is connected to the 7 pin of the relay IEO and the 10 pin of the relay LCEO, the 11 pin of the relay IEO and the 6 pin of the relay LCEO are connected to the power +24v, and the A2 pin of the relay LCEO is connected to the power 0V. When the coil of the relay IEO is electrified, the start-end opening logic sub-circuit of the IBP is conducted only by generating trigger information, and the coil of the relay LCEO is electrified, so that a door opening command conduction signal is generated. The relay IEC on the IBP head-end door opening logic sub-circuit is normally closed contact connection, so that the IBP head-end door opening logic sub-circuit can be conducted only when the coil of the relay IEO is electrified, a door opening command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

The door closing command logic circuit 3 is used for controlling the corresponding door closing logic sub-circuit to be conducted according to the trigger signal and generating a door closing command conducting signal;

referring to fig. 7, fig. 7 is a circuit diagram of a door closing command logic circuit 3 according to an embodiment of the invention. The door closing command logic circuit 3 comprises a SIG door closing logic sub-circuit, a PSL door closing logic sub-circuit, an IBP door closing logic sub-circuit and an IBP head-tail door opening logic sub-circuit; the SIG door closing logic sub-circuit, the PSL door closing logic sub-circuit, the IBP door closing logic sub-circuit and the IBP head-tail door opening logic sub-circuit are mutually connected in parallel;

the SIG door closing logic sub-circuit comprises a relay LCGC, wherein the relay LCGC, a relay PEB2, a relay PEB1, a relay IEB2, a relay S1 and a relay S3 are sequentially connected in series; the coil of the relay LCGC, the normally-closed contact of the relay PEB2, the normally-closed contact of the relay PEB1, the normally-closed contact of the relay IEB2, the normally-closed contact of the relay S1 and the normally-open contact of the relay S3 are sequentially connected in series. The relay LCGC may employ an SF40 relay, the A1 pin of the relay LCGC is connected to the 16 pin of the relay PEB2, the 15 pin of the relay PEB2 is connected to the 6 pin of the relay PEB1, the 5 pin of the relay PEB1 is connected to the 11 pin of the relay IEB2, the 3 pin of the relay IEB2 is connected to the 9 pin of the relay S1, the 5 pin of the relay S1 is connected to the 12 pin of the relay S3, the 8 pin of the relay S3 is connected to the power +24v, and the A2 pin of the relay LCGC is connected to the power 0V. When the coil of the relay S3 is electrified, a trigger signal is generated, the normally open contact corresponding to the relay S3 is closed, namely the No. 8 pin and the No. 12 pin of the relay S3 are communicated, so that the SIG door closing logic sub-circuit is conducted, the coil of the relay LCGC is electrified, and a door closing command conduction signal is generated. And a coil of the relay LCGC is also connected with a SIG door closing indicator lamp R in parallel and used for displaying the power-on condition of a SIG door closing logic sub-circuit so as to be convenient for finding faults. The relay S1, the relay IEB2, the relay PEB1 and the relay PEB3 on the SIG door closing logic sub-circuit are all normally closed contacts, so that the SIG door closing logic sub-circuit is conducted only when a coil of the relay S3 is electrified, a door closing command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

The PSL door closing logic sub-circuit comprises a relay LCLC, a relay PEB1, a relay LCEC, a relay IEB2, a relay PLO and a relay PLC which are sequentially connected in series; the relay PEB2 is connected with the relay PEB1 in parallel, and the relay LCLC is connected with the relay PLC in parallel; the coil of the relay LCLC, the normally open contact of the relay PEB1, the normally closed contact of the relay LCEC, the normally closed contact of the relay IEB2, the normally closed contact of the relay PLO and the normally open contact of the relay PLC are sequentially connected in series; the normally open contact of the relay PEB2 is connected in parallel with the normally open contact of the relay PEB1, and the normally open contact of the relay LCLC is connected in parallel with the normally open contact of the relay PLC. The relay LCLC may employ an SF40 relay, the A1 pin of the relay LCLC is connected to the 10 pin of the relay PEB2 and the 10 pin of the relay PEB1, the 6 pin of the relay PEB2 and the 6 pin of the relay PEB1 are connected to the 2 pin of the relay LCEC, the 10 pin of the relay LCEC is connected to the 2 pin of the relay IEB2, the 6 pin of the relay IEB2 is connected to the normally closed contact of the relay PLO, the 5 pin of the relay PLO is connected to the 8 pin of the relay PLC and the 9 pin of the relay LCLC, the 7 pin of the relay PLC and the 5 pin of the relay LCLC are connected to the power +24v, and the A2 pin of the relay LCLC is connected to the power 0V. When the coil of the relay PEB1 is powered on and the coil of the relay PLC is powered on, the generated trigger signal enables the PSL door opening logic sub-circuit to be conducted, the coil of the relay LCLC is powered on, and therefore a door closing command conducting signal is generated. When the coil of the relay PEB2 is powered on and the coil of the relay PLC is powered on, the generated trigger signal enables the PSL door closing logic sub-circuit to be conducted, the coil of the relay LCLC is powered on, and therefore a door closing command conducting signal is generated. The relay PLO, the relay IEB2 and the relay LCEC on the PSL door closing logic sub-circuit are all normally closed contacts, so that the PSL door closing logic sub-circuit is conducted only when the relay PEB1 coil is powered on and the relay PLC or the relay PEB2 coil is powered on and the relay PLC coil is powered on, and a door closing command conduction signal is generated, so that interference of trigger information generated in other modes is avoided.

The IBP door closing logic sub-circuit comprises a relay LCPC, wherein the relay LCPC, a relay IEB3, a relay IO and a relay IC are sequentially connected in series; the relay LCPC is connected with the relay IC in parallel; the coil of the relay LCPC, the normally-open contact of the relay IEB3, the normally-closed contact of the relay IO and the normally-open contact of the relay IC are sequentially connected in series, and the normally-open contact of the relay LCPC is connected in parallel with the normally-open contact of the relay IC. The relay LCPC may employ an SF40 relay, the A1 pin of the relay LCPC is connected to the No. 8 pin of the relay IEB3, the No. 12 pin of the relay IEB3 is connected to the No. 4 pin of the relay IO, the No. 12 pin of the relay IO is connected to the No. 10 pin of the relay IC and the No. 8 pin of the relay LCPC, the No. 6 pin of the relay IC and the No. 7 pin of the relay LCPC are connected to the power +24v, and the A2 pin of the relay LCPC is connected to the power 0V. When the coil of the relay IEB3 is powered on and the coil of the relay IC is powered on, the IBP door closing logic sub-circuit is conducted only by generating trigger information, and the coil of the relay LCPC is powered on, so that a door closing command conduction signal is generated. The relay IO on the IBP closing logic sub-circuit is normally closed contact connection, so that the IBP closing logic sub-circuit is conducted only when the coil of the relay IEB3 is powered on and the coil of the relay IC is powered on, a closing command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

The IBP head-tail end door closing logic sub-circuit comprises a relay LCEC, and the relay LCEC, a relay IEO and a relay IEC are sequentially connected in series; the coil of the relay LCEC, the normally-closed contact of the relay IEO and the normally-open contact of the relay IEC are sequentially connected in series. The relay LCEC may employ an SF40 relay, the A1 pin of the relay LCEC is connected to the No. 4 pin of the relay IEO, the No. 12 pin of the relay IEO is connected to the No. 12 pin of the relay IEC, the No. 8 pin of the relay IEC is connected to the power +24v, and the A2 pin of the relay LCEC is connected to the power 0V. When the coil of the relay IEC is electrified, the start-end door closing logic sub-circuit of the IBP is conducted only by generating trigger information, and the coil of the relay LCEC is electrified, so that a door closing command conduction signal is generated. The relay IEO on the IBP head-end door closing logic sub-circuit is normally closed contact connection, so that the IBP head-end door closing logic sub-circuit can be conducted only when a coil of the relay IEC is electrified, a door closing command conduction signal is generated, and interference of trigger information generated in other modes is avoided.

Referring to fig. 8, fig. 8 is a circuit diagram of a door opening/closing command line 5 according to an embodiment of the present invention. A door opening command line 4 for controlling the door opening command line 4 to be turned on according to the door opening command on signal; the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO are arranged on the door opening command line 4; the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO are mutually connected in parallel; the door opening command line 4 comprises a 01A line, a 01C line, a 03A line and a 03C line, wherein a No. 5 pin and a No. 9 pin of the relay LCGO are connected to the 01A line, a No. 6 pin and a No. 10 pin of the relay LCLO are connected to the 01A line, and a No. 6 pin and a No. 10 pin of the relay LCPO are connected to the 01A line; the No. 6 pin and the No. 10 pin of the relay LCGO are connected to the 01C circuit, the No. 7 pin and the No. 11 pin of the relay LCLO are connected to the 01C circuit, and the No. 7 pin and the No. 11 pin of the relay LCPO are connected to the 01C circuit; the No. 9 pin and the No. 5 pin of the relay LCEO are connected to a 03A circuit; the 12 # pin and the 8 # pin of the relay LCEO are connected to the 03C line. The 01A circuit and the 01C circuit are respectively connected to the head end and the tail end of the gating unit, and the gating unit can receive signals to control the gating unit to open as long as one of the 01A circuit and the 01C circuit is conducted. Similarly, the 03A line and the 03C line are respectively connected to the front and the rear ends of the front and the rear gate control units, and the front and the rear gate control units can receive signals to control the front and the rear gates to be opened as long as one of the 03A line and the 03C line is conducted. Normally open contacts of the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO connected to the door opening command line 4 are used for obtaining door opening command conduction signals when a coil of the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO is powered on, so that the normally open contacts are closed, the door opening command line 4 is conducted, and then the door control unit is controlled by the signals.

And the door closing command line 5 is used for controlling the door closing command line 5 to be conducted according to the door closing command conduction signal.

The relay LCGC, the relay LCLC, the relay LCPC and the relay LCEC are arranged on the door closing command line 5; the relay LCGC, the relay LCLC, the relay LCPC, and the relay LCEC are connected in parallel with each other. The door opening command line 4 comprises a 05A line, a 05C line, a 04A line and a 04C line, wherein a No. 5 pin and a No. 9 pin of the relay LCGC are connected to the 05A line, a No. 6 pin and a No. 10 pin of the relay LCLC are connected to the 05A line, and a No. 9 pin and a No. 10 pin of the relay LCPC are connected to the 05A line; the No. 6 pin and the No. 10 pin of the relay LCGC are connected to the 05C circuit, the No. 7 pin and the No. 11 pin of the relay LCLC are connected to the 05C circuit, and the No. 14 pin and the No. 13 pin of the relay LCPC are connected to the 05C circuit; the No. 9 pin and the No. 5 pin of the relay LCEC are connected to a 04A circuit; the No. 5 pin and the No. 9 pin of the relay LCEC are connected to the 04C line. The 05A circuit and the 05C circuit are respectively connected to the head end and the tail end of the gate control unit, and the gate control unit can receive signals to control the gate switch as long as one of the 05A circuit and the 05C circuit is conducted. Similarly, the 04A line and the 04C line are respectively connected to the front end and the rear end of the front-to-rear gate control unit, and the front-to-rear gate control unit can receive signals to control the front-to-rear gate to be opened as long as one of the 04A line and the 04C line is conducted. Normally open contacts of the relay LCGC, the relay LCLC, the relay LCPC and the relay LCEC connected to the door closing command line 5 obtain door closing command conduction signals when coils of the relay LCGC, the relay LCLC, the relay LCPC and the relay LCEC are powered on, so that the normally open contacts are closed, the door closing command line 5 is conducted, and the door control unit is controlled by the signals.

In the implementation process, all main control in the circuit is controlled by adopting the relay, and the logic control sequence is built by adopting the relay, so that the control on the platform door is more stable, and the control logic of the device is clearer, the principle is clearer and the reliability is higher because a large number of boards are simplified; and meanwhile, the cost can be reduced. The system adopts SIG door opening logic sub-circuit, PSL door opening logic sub-circuit, IBP door opening logic sub-circuit and IBP head and tail door opening logic sub-circuit to control, thus obtain the three-stage control logic command loop, the loop adopts the interlocking logic control mode, the door is opened and closed through the control signal, the operation panel is operated on the spot, the operation panel is operated remotely, the auxiliary contact of the function relay controls the three-stage linkage priority of the platform door system, because the platform door is divided into five control modes of three stages, the logic control priority is manual, platform and system in sequence from high to low; the control mode priority is manual unlocking, an on-site control box, a remote control panel, an on-site control panel and a signal system door opening and closing signal in sequence from high to low, and for strict priority control level, the interlocking loop is utilized: when the signal switch door, on-site operation dish and remote operation dish can in time be removed and by the higher operation of authority, when the on-site control dish operation, signal system's switch door signal can not be cut, but remote operation dish can in time be removed and control, when the remote operation dish operation, signal system and on-site control dish can not remove switch door command to ensured the logical nature and the stability of tertiary operation authority. When the PEDC is damaged, the device can enable the three-level control (SIG, PSL, IBP) to work continuously so as to ensure stable operation and running safety. The PEDC emergency device for the subway platform door is suitable for a platform door line of a NABCO system, can be connected into the system under the condition that the SIG, PSL, IBP level of the sliding door of the whole side platform cannot be normally opened or closed on site, controls the opening or closing of the whole side platform door, and reduces the influence on driving and passenger transport. The material can also be used as a substitute of original PEDC, so that the normal realization of important functions of traveling crane is ensured, and the maintenance cost of equipment is saved.

The circuit further comprises a safety loop circuit, please refer to fig. 9, fig. 9 is a circuit diagram of the closing lock and safety circuit according to the embodiment of the invention. The safety loop circuit comprises a relay PO, a relay ADCL1 and a relay ADCL2;

the wire package of the relay PO is connected with a door opening sensor in the door control unit to monitor whether the door control unit is fully opened or not, the door control unit comprises door control units of a plurality of carriages, and when the door opening sensor detects that the door control units are all in an open state, the wire package of the relay PO is powered on, and the relay PO works; when the door opening sensor of one or more door control units detects that the door is closed, a coil of the relay PO is not powered, and the relay PO does not work, so that the full-open state of the door control units can be detected. When the detection is in the open state, the coil of the relay PO is not electrified, and the relay PO does not work. For example, the A1 pin of the relay PO is connected to the power +24v, and the a2 pin is connected to the power 0V; DCU24#, DCU23#, DCU2# and DCU1# are sequentially connected in series between the A1 pin and the power supply +24V; DCU24#, DCU23#, DCU2# and DCU1# are sequentially connected in series between the A2 pin and the power supply 0V.

The coil of the relay ADCL1 and the coil of the relay ADCL2 are respectively connected with a door closing sensor in a door control unit to monitor whether the door control units are all closed, the door control unit comprises door control units of a plurality of carriages, and when the door closing sensors detect that the door control units are all in a closed state, the coil of the relay ADCL1 and the coil of the relay ADCL2 are powered on, and the relay ADCL1 and the relay ADCL2 work; when the door closing sensor of one or more door control units detects that the door is opened, the coil of the relay ADCL1 and the coil of the relay ADCL2 are not powered, and the relay ADCL1 and the relay ADCL2 do not work, so that the fully closed state of the door control units can be detected. For example: the A1 pin of the relay ADCL1 is connected to a power supply +24V, and the A2 pin is connected to a power supply 0V; DCU24#, DCU23#, DCU2# and DCU1# are sequentially connected in series between the A1 pin and the power supply +24V; DCU24#, DCU23#, DCU2# and DCU1# are sequentially connected in series between the A2 pin and the power supply 0V. The coil of the relay ADCL2 is connected in parallel with the coil of the relay ADCL 1.

When the relay ADCL1 works, the normally closed contact in the relay ADCL1 is closed, the relay ADCL1 is communicated with the SIG signal processing system, and the SIG signal processing system receives a signal, so that the condition that a door is opened is known, and further actions are performed. For example, when the train has not arrived, the SIG signal processing system notifies the train to stop arriving after detecting that the door is open. The connection mode of the relay ADCL1 may be that the pin 14 and the pin 8 of the relay ADCL1 are connected to the SIG signal processing system, the pin 13 of the relay ADCL1 is connected to the power supply 0V, and the pin 7 of the relay ADCL1 is connected to the power supply +24v.

In the implementation process, the fully-opened and fully-closed states of the platform door can be monitored by the aid of the safety loop circuit, and when the fully-closed states are abnormal, the SIG signal processing system can timely receive high-level signals, so that the abnormal states are obtained, further, actions are timely made, dangers are avoided, and driving safety is guaranteed.

The device further comprises an interlocking release switch, wherein the interlocking release switch is connected with the relay PIO in parallel, and the relay PIO is connected with the SIG signal processing system in parallel. The normally open contact of the relay PIO is connected in parallel with the SIG signal processing system, and the interlock release switch may be a key interlock release switch. When an interlocking contact key is pressed on a PSL-H operation table, a coil of the relay PIO is electrified, a normally closed contact of the relay PIO is closed, and the SIG signal processing system receives a high-level signal, so that the interlocking contact is known. When the interlocking contact key on the PSL-H operation table fails or is in other conditions, the interlocking contact key can be released through an interlocking release switch, and after a circuit in the interlocking release switch is conducted, the SIG signal processing system receives a high-level signal, so that the interlocking contact is known. For example, pin 8 and pin 10 of the relay PIO are connected to the SIG signal processing system, pin 9 of the relay PIO is connected to power supply 0V, and pin 7 of the relay PIO is connected to power supply +24v. Two ends of a first interlocking contact switch in the interlocking release switch are respectively connected with a No. 9 pin and a No. 10 pin of the relay PIO, and two ends of a second interlocking contact switch in the interlocking release switch are respectively connected with a No. 8 pin and a No. 7 pin of the relay PIO.

In the implementation process, by arranging the interlocking release circuit, when interlocking contact is performed, the SIG signal processing system can acquire and act in time, so that driving safety is ensured. Meanwhile, the interlocking unlocking operation can be performed without a PSL-H operation table by arranging the interlocking unlocking switch, the SIG signal processing system can acquire and act in time, and the driving safety is ensured.

Referring to fig. 10, fig. 10 is a circuit diagram of a power supply circuit according to an embodiment of the invention. The anti-interference magnetic ring FC1 and the EMI filter NF1 are added before the power supply is input. The anti-interference magnetic ring has good electrostatic pulse absorption capability, and can effectively inhibit high-frequency noise, so that the electronic equipment can reach the corresponding international standard of electromagnetic compatibility and electrostatic discharge. The EMI filter can inhibit the interference of high-frequency interference in the alternating current power grid to equipment, and can inhibit the interference of the equipment to the alternating current power grid.

Referring to fig. 11, fig. 11 is a schematic functional diagram of a PEDC emergency device for a subway platform door according to an embodiment of the invention. The subway platform door PEDC emergency device can realize the functions of closing, locking, signal door opening and closing and three-level command after being connected with the existing PEDC, the signal door opening and closing can realize door opening and door closing, and the three-level command can realize three-level control of manual level, platform level and system level.

Claims

1. The PEDC emergency device for the subway platform door is characterized by comprising a door opening and closing signal receiving circuit, a door opening command logic circuit, a door closing command logic circuit, a door opening command circuit and a door closing command circuit, wherein the door opening command logic circuit and the door closing command logic circuit are connected with the door opening and closing signal receiving circuit, the door opening command circuit is connected with the door opening command logic circuit, and the door closing command circuit is connected with the door closing command logic circuit; wherein,

a door closing command line for controlling the door closing command line to be turned on according to a door closing command turn-on signal;

The switch door signal receiving circuit comprises a SIG trigger sub-circuit, wherein the SIG trigger sub-circuit comprises a relay S1 and a relay S3; the relays S1 are respectively connected to a first group of door opening control command lines of the signal automatic control system; the relays S3 are respectively connected to a first group of door closing control command lines of the signal automatic control system;

the switch door signal receiving circuit further comprises a PSL-H trigger sub-circuit, wherein the PSL-H trigger sub-circuit comprises a relay PEB1, a relay PEB2, a relay PIO, a relay PLO, a relay PLC and a PSL-H operation table; the relay PEB1, the relay PEB2 and the PSL-H operation table are sequentially connected in series; the relay PIO, the relay PEB2 and the PSL-H operation table are sequentially connected in series; the relay PLO, the relay PEB1 and the PSL-H operation table are sequentially connected in series; the relay PLC, the relay PEB1 and the PSL-H operation table are sequentially connected in series;

the switch door signal receiving circuit also comprises a PSL-T trigger sub-circuit; the relay PEB2, the relay PEB1 and the PSL-H operation table are sequentially connected in series; the relay PIO, the relay PEB1 and the PSL-H operation table are sequentially connected in series; the relay PLO, the relay PEB2 and the PSL-H operation table are sequentially connected in series; the relay PLC, the relay PEB2 and the PSL-H operation table are sequentially connected in series;

The switch door signal receiving circuit further comprises an IBP trigger sub-circuit; the IBP trigger sub-circuit comprises a relay IEB1, a relay IEB2, a relay IEB3, a relay IO, a relay IC, a relay IEO, a relay IEC and an IBP operation console; the relay IEB1, the relay IEB2 and the relay IEB3 are connected with the IBP operation table in series; the relay IEB1, the relay IEB2 and the relay IEB3 are mutually connected in parallel; the relay IO, the relay IEB1 and the IBP operation platform are sequentially connected in series; the relay IC, the relay IEB1 and the IBP operation table are sequentially connected in series; the relay IEO, the relay IEB2 and the IBP operation platform are sequentially connected in series; the relay IEC, the relay IEB2 and the IBP operation table are sequentially connected in series;

the door opening command logic circuit comprises a SIG door opening logic sub-circuit, a PSL door opening logic sub-circuit, an IBP door opening logic sub-circuit and an IBP head-tail door opening logic sub-circuit; the SIG door opening logic sub-circuit, the PSL door opening logic sub-circuit, the IBP door opening logic sub-circuit and the IBP head and tail door opening logic sub-circuit are mutually connected in parallel;

the SIG door opening logic sub-circuit comprises a relay LCGO, wherein the relay LCGO, the relay PEB2, the relay PEB1, the relay IEB, the relay S3 and the relay S1 are sequentially connected in series;

The PSL door opening logic sub-circuit comprises a relay LCLO, and the relay LCLO, the relay PEB1, the relay LCEC, the relay IEB, the relay PLC and the relay PLO are sequentially connected in series; the relay PEB2 is connected in parallel with the relay PEB1, and the relay LCLO is connected in parallel with the relay PLO;

the IBP door opening logic sub-circuit comprises a relay LCPO, and the relay LCPO, the relay IEB3, the relay IC and the relay IO are sequentially connected in series; the relay LCPO is connected with the relay IO in parallel;

the IBP head-tail end door opening logic sub-circuit comprises a relay LCEO, and the relay LCEO, the relay IEC and the relay IEO are sequentially connected in series; the relay LCEO is connected in parallel with the relay IEO.

2. The subway platform door PEDC emergency device of claim 1, wherein the door closing command logic comprises SIG door closing logic, PSL door closing logic, IBP door closing logic, and IBP head-to-tail door closing logic; the SIG door closing logic sub-circuit, the PSL door closing logic sub-circuit, the IBP door closing logic sub-circuit and the IBP head and tail door closing logic sub-circuit are mutually connected in parallel;

The SIG door closing logic sub-circuit comprises a relay LCGC, wherein the relay LCGC, the relay PEB2, the relay PEB1, the relay IEB2, the relay S1 and the relay S3 are sequentially connected in series;

the PSL door closing logic sub-circuit comprises a relay LCLC, and the relay LCLC, the relay PEB1, the relay LCEC, the relay IEB2, the relay PLO and the relay PLC are sequentially connected in series; the relay PEB2 is connected with the relay PEB1 in parallel, and the relay LCLC is connected with the relay PLC in parallel;

the IBP door closing logic sub-circuit comprises a relay LCPC, and the relay LCPC, the relay IEB3, the relay IO and the relay IC are sequentially connected in series; the relay LCPC is connected in parallel with the relay IC;

3. The subway platform door PEDC emergency device of claim 2, wherein the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO are provided on the door opening command line; the relay LCGO, the relay LCLO, the relay LCPO and the relay LCEO are mutually connected in parallel;