Subway platform door dcu interface board

Abstract

The application discloses a subway platform door DCU interface board, which comprises a bus command module, a position isolation module, a three-time obstacle module, an LCB interface module and an interface module; the bus command module receives opening and closing door command signals sent from a PSC cabinet, and sends the opening door command signal to the position isolation module and the closing door command signal to the three-time obstacle module; the opening door command signal enters the three-time obstacle module through the normally closed contact of a position isolation relay; the opening and closing door command signals enter the LCB interface module and the interface module in turn through the relays of the three-time obstacle module; and the interface module sends the opening and closing door command signals to a main control board. The application has the advantages of high integration degree, simple wiring and high system reliability, and the interface board can not only connect the PSC control cabinet and the DCU main control board, but also realize the functions of position isolation, three-time obstacle opening door and safety loop, and is a multifunctional interface board integrating interface, position isolation, three-time obstacle, safety loop and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to a subway platform door DCU interface board, belonging to the traffic platform control device. BACKGROUND

[0002] In today's rapid development of social economy and science and technology, urban rail transit has become one of the necessary transportation methods for people in China. However, due to the frequent occurrence of subway incidents in recent years, people have doubts about the safety of subway travel, and the failure rate of platform doors has relatively increased, which has also caused the decline of passenger travel experience. Therefore, in order to ensure the safety of China's subway and protect the safety of people's travel and increase the travel experience of passengers, the relevant departments have proposed many solutions to hope to quickly handle and avoid risk failures.

[0003] The existing DCU circuit board includes a network port board, an interface board, a drive board and a main control board, a total of 4 circuit boards, the DCU circuit board has poor integration, internal wiring is chaotic, and cannot realize the function of increasing in use. Defects such as. At the same time, the alignment isolation and three times obstacle modules of the door control system are independently set up from the DCU circuit board, which leads to complex wiring of the network port board and the interface board, therefore, a high integration degree and a kind of interface board for platform door DCU which can integrate network port, interface and alignment isolation, three times obstacle functions into one become the goal pursued by the technical personnel in the field. SUMMARY

[0004] The purpose of the present application is to solve the problem of low integration degree of the existing platform door DCU circuit board, complex circuit and wiring of the network port board and the interface board;

[0005] Another purpose of the present application is to solve the problem of low integration of the existing platform door control system, the alignment isolation and three times obstacle modules are independently set up from the interface board and the network port board, leading to complex circuit, complex wiring and low integration, the function of the interface board is single, and the function of alignment isolation and three times obstacle cannot be realized.

[0006] In order to achieve the above-mentioned purpose of the application, the technical scheme adopted by the present application is: a subway platform door DCU interface board is arranged between the subway PSC cabinet and the subway door main control board, characterized in that: it comprises: a bus command module, an alignment isolation module, a three times obstacle module, an LCB interface module and an interface module.

[0007] The bus command module: connected with the PSC cabinet, and connected with the alignment isolation module and the three times obstacle module; for receiving the opening and closing door command signal sent from the PSC cabinet, and sending the opening door command signal to the alignment isolation module and the closing door command signal to the three times obstacle module;

[0008] The alignment isolation module is connected with the third-time obstacle module, and is configured to receive the door opening command signal sent by the bus command module and output the door opening command signal to the third-time obstacle module.

[0009] The third-time obstacle module is connected with the LCB interface module, and is configured to receive the door opening command signal sent by the alignment isolation module and transmit the door opening command signal to the LCB interface module.

[0010] The LCB interface module is directly connected with the peripheral LCB switch, and is configured to collect the state signal of the LCB switch; the LCB interface module is connected with the interface module; when the LCB switch is in the automatic position and the automatic signal is collected, the LCB interface module is configured to receive the door opening command signal sent by the third-time obstacle module and send the door opening command signal to the interface module.

[0011] The interface module is configured to receive the door opening command signal sent by the LCB interface module and send the door opening command signal to the main control board, and is configured to receive the door closing command signal sent by the third-time obstacle module and send the door closing command signal to the main control board.

[0012] As a preferred solution, the door opening command signal enters the alignment isolation module, is output to the third-time obstacle module through the normally closed contact of the alignment isolation relay K7, enters the third-time obstacle module, is transmitted to the LCB interface module through the normally closed contact of the third-time obstacle relay K6 of the third-time obstacle module, enters the LCB interface module, is sent to the interface module after the normally open contact of the LCB relay K4 of the LCB interface module is closed, and the door opening command signal is sent to the interface module; the door closing command signal enters the third-time obstacle module, and is transmitted to the interface module through the normally closed contact of the third-time obstacle relay K5.

[0013] The subway platform door DCU interface board further comprises an MCU processing module and a network port module, so that the platform door can be aligned and isolated when the door fails, as a preferred solution; the MCU processing module is connected with the alignment isolation module, and is configured to send an alignment isolation signal to the alignment isolation module; the network port module is arranged between the PSC cabinet and the MCU processing module, and is configured to exchange data between the PSC cabinet and the MCU processing module.

[0014] The network port module is configured to receive the door failure signal sent by the upper computer in the PSC cabinet, and transmit the door failure signal to the MCU processing module.

[0015] The MCU processing module is configured to receive the corresponding train door failure signal transmitted by the network port module, process the corresponding train door failure signal, and send an alignment isolation signal to the alignment isolation module.

[0016] The alignment isolation module is used for receiving the alignment isolation signal sent by the MCU processing module. After receiving the signal, the alignment isolation module cuts off the door opening command signal sent by the bus command module, and does not execute the door opening action.

[0017] As a preferred solution, the alignment isolation module comprises a relay drive module I and an alignment isolation relay K7. The bus command module is connected with the three-time obstacle module through the alignment isolation relay K7. The MCU processing module is connected with the relay drive module I, which is used for controlling the action of the alignment isolation relay K7.

[0018] The relay drive module I receives the alignment isolation signal sent by the MCU processing module, sends an alignment isolation control signal ISOLATE, controls the alignment isolation relay K7 to be attracted, and makes the normally closed contact of the alignment isolation relay K7 be disconnected, thereby cutting off the door opening command signal sent by the bus command module.

[0019] In order to collect the state signal of the platform door in time and send the signal to the upper computer in time, as a preferred solution, the MCU processing module is connected with the LCB interface module.

[0020] The LCB interface module is directly connected with the peripheral LCB switch, and is used for receiving and processing the state signal of the LCB switch. When the LCB switch is in the “automatic” position, the LCB interface module controls the conduction of the door opening command signal from the three-time obstacle module to the interface module.

[0021] When the LCB switch is in the “manual opening” position, the LCB interface module cuts off the door opening command signal from the three-time obstacle module to the interface module, sends a local door opening signal to the interface module, and sends a manual control state signal to the interface module.

[0022] When the LCB switch is in the “manual closing” position, the LCB interface module cuts off the door opening command signal from the three-time obstacle module, and sends a manual control state signal to the interface module.

[0023] The MCU processing module is used for receiving the state signal of the LCB switch sent by the LCB interface module. When the LCB switch is in the “isolation” state of non-manual opening, non-manual closing, and non-automatic, the LCB interface module sends an isolation state signal to the MCU processing module. The MCU processing module converts the isolation state signal into a digital signal and uploads it to the upper computer of the PSC cabinet through the network interface module.

[0024] As a preferred solution, the LCB interface module comprises a DI acquisition circuit, an LCB switch interface terminal and a relay unit; the LCB switch interface terminal is connected with the LCB switch for receiving the state signal of the LCB switch; the DI acquisition circuit is connected between the MCU processing module and the LCB switch interface terminal for receiving the state signal of the LCB switch and transmitting to the MCU processing module; the LCB switch interface terminal is connected with the relay unit for controlling the relay unit to act according to the state signal of the LCB switch.

[0025] As a preferred solution, the relay unit comprises LCB relay one K1, LCB relay two K3 and LCB relay three K4; the three-time obstacle module is connected with the interface module through the LCB relay three K4, one end of the automatic signal PCC on output end of the LCB switch interface terminal is connected with the LCB relay two K3 and the LCB relay three K4, the other end of the LCB relay two K3 and the LCB relay three K4 is connected with 0V voltage; one end of the manual opening signal OPEN output end of the LCB switch interface terminal is connected with the LCB relay one K1, the other end of the LCB relay one K1 is connected with 0V voltage; the power signal POWEREN output end of the LCB switch interface terminal is connected with the interface module; the power signal POWEREN output end of the LCB switch interface terminal is connected with the MCU processing module through the DI acquisition circuit.

[0026] When the LCB switch is in the "automatic position", the LCB interface module receives the automatic signal PCC on and the power signal POWEREN, the automatic signal PCC on is 48V, the LCB relay two K3 and the LCB relay three K4 are in the power-on state, the normally open contact is closed, the normally closed contact is opened, the opening door signal from the three-time obstacle module is transmitted to the interface module through the normally open contact of the LCB relay three K4 which is closed; at this time, the power signal POWEREN is high level, the DI acquisition circuit acquires the high level state of the power signal POWEREN, generates and sends the power state signal POWEN to the MCU processing module, and the MCU processing module determines that the LCB switch is in the "non-isolation" state.

[0027] When the LCB switch is in the "manual open" position, the LCB interface module receives a manual open signal OPEN and a power signal POWEREN, the manual open signal OPEN is 48V, the LCB relay K1 is in the power-on state, the normally open contact is closed, and the normally closed contact is open, and the two normally open contacts of the LCB relay K1 are closed to send a local door opening signal DOP1IN (48V) and DOP2IN (0V) to the interface module; at this time, the power signal POWEREN is high, the DI acquisition circuit acquires the high level state of the power signal POWEREN, generates and sends a power state signal POWEN to the MCU processing module, and the MCU processing module determines that the LCB switch is in a "non-isolation" state;

[0028] When the LCB switch is in the "manual open" position, the LCB interface module receives a manual open signal OPEN and a power signal POWEREN, the manual open signal OPEN is 48V, the LCB relay K1 is in the power-on state, the normally open contact is closed, and the normally closed contact is open, and the two normally open contacts of the LCB relay K1 are closed to send a local door opening signal DOP1IN (48V) and DOP2IN (0V) to the interface module; at this time, the power signal POWEREN is high, the DI acquisition circuit acquires the high level state of the power signal POWEREN, generates and sends a power state signal POWEN to the MCU processing module, and the MCU processing module determines that the LCB switch is in a "non-isolation" state;

[0029] When the LCB switch is in the "manual open" position, the LCB interface module receives a manual open signal OPEN and a power signal POWEREN, the manual open signal OPEN is 48V, the LCB relay K1 is in the power-on state, the normally open contact is closed, and the normally closed contact is open, and the two normally open contacts of the LCB relay K1 are closed to send a local door opening signal DOP1IN (48V) and DOP2IN (0V) to the interface module; at this time, the power signal POWEREN is high, the DI acquisition circuit acquires the high level state of the power signal POWEREN, generates and sends a power state signal POWEN to the MCU processing module, and the MCU processing module determines that the LCB switch is in a "non-isolation" state;

[0030] When the vehicle door encounters obstacles three times, it needs to be opened immediately, and as a preferred solution, it further includes a 485 communication module arranged between the MCU processing module and the interface module, for communication between the interface module and the MCU processing module; the MCU processing module is connected with the three-time obstacle module, for sending an obstacle opening signal to the three-time obstacle module;

[0031] The interface module is used for receiving the door body three-time obstacle signal sent by the main control board and transmitting the three-time obstacle signal to the 485 communication module;

[0032] The 485 communication module receives the door body three-time obstacle signal sent by the interface module and transmits the three-time obstacle signal to the MCU processing module;

[0033] The MCU processing module receives the door body three-time obstacle signal, processes the signal, and sends an obstacle door opening signal to the three-time obstacle module; after receiving the obstacle door opening signal sent by the MCU processing module, the three-time obstacle module cuts off the transmission line of the door opening command signal from the bus command module to the main control board; a local door opening command signal is separately given to realize the simultaneous reverse opening of the two platform doors after three-time obstacle.

[0034] As a preferred mode, the three-time obstacle module comprises a three-time obstacle relay unit and a relay drive module two, the three-time obstacle relay unit comprises a three-time obstacle relay one K6 and a three-time obstacle relay two K5; the MCU processing module is connected with the relay drive module two, and the relay drive module two is used for controlling and driving the three-time obstacle relay one K6 and the three-time obstacle relay two K5 to act; one end of the relay drive module two output end is connected with the three-time obstacle relay one and the three-time obstacle relay two, and the other end of the three-time obstacle relay one and the three-time obstacle relay two is connected with a 48V power supply; the normally open contact of the three-time obstacle relay one K6 is connected with the 48V power supply; the alignment isolation module is connected with the LCB interface module through the normally closed contact of the three-time obstacle relay one K6, and the bus command module is connected with the interface module through the normally closed contact of the three-time obstacle relay two K5;

[0035] The relay drive module two receives the obstacle door opening signal sent by the MCU processing module, emits an obstacle door opening control signal OBSTACLE (0V) after the obstacle door opening signal is optically coupled and electrically converted, and is used for driving the three-time obstacle relay one K6 and the three-time obstacle relay two K5 to act; after the coils of the three-time obstacle relay one K6 and the three-time obstacle relay two K5 are electrified and attracted, the normally closed contact is disconnected, the transmission line of the door closing command signal from the bus command module to the interface module and the door opening command signal from the alignment isolation module to the LCB interface module is cut off; the normally open contact of the three-time obstacle relay one K6 is closed to separately give a local door opening command signal, and the sliding door is opened after three-time obstacle.

[0036] In order to realize the real-time state monitoring of the PSC on the door body, as a preferred scheme, the interface module receives the hardware handshake signal from the main control board and transmits the signal to the MCU processing module through the 485 communication module;

[0037] When the hardware handshake signal is high, the main control board communication is ready, at this time the MCU processing module sends data query DCU state command to the main control board through the 485 communication module and the interface module; the main control board returns DCU state data to the interface module, and the interface module is used for receiving the queried data sent by the main control board, and the queried data is transmitted to the MCU processing module through the 485 communication module;

[0038] The MCU processing module receives the queried data sent by the main control board through the 485 communication module, and the data includes but is not limited to door body failure and state information, which is stored in the internal FLASH after processing;

[0039] The network port module is used for receiving the data query command sent by the PSC cabinet in the form of network cable, and transmitting the data query command to the MCU processing module;

[0040] The MCU processing module is used for receiving the data query command sent by the PSC cabinet in the form of network cable through the network port module, and the MCU processing module uploads the data (including but not limited to door body failure and state information) stored in the internal FLASH to the PSC cabinet in the form of network cable through the network port module, so as to realize real-time state monitoring of the PSC on the door body.

[0041] As a preferred scheme, it further comprises an EED bypass module connected with the MCU processing module;

[0042] The EED bypass module is used for collecting the EED bypass state signal EED PL of the EED bypass switch in the emergency door bypass box, and uploading the EED bypass state signal EED PL to the MCU processing module;

[0043] The MCU processing module is used for receiving the EED bypass state signal EED PL of the bypass switch collected by the EED bypass module, and uploading the EED bypass state signal EED PL to the PSC cabinet in the form of network cable through the network port module.

[0044] As a preferred scheme, the EED bypass module comprises a wiring terminal and a collection circuit; the wiring terminal is connected with the peripheral EED bypass switch, and is used for receiving the EED bypass state signal EED PL of the EED bypass switch; the output end of the wiring terminal is connected with the input end of the collection circuit, and the collection circuit is connected with the MCU processing module;

[0045] When the EED bypass switch is in the "bypass" position, the terminal (1010) outputs the EED bypass signal EED_PL0V to the acquisition circuit, and the EED bypass signal EED_PL is processed by the acquisition circuit to output the 0V bypass output signal EED-PL to the MCU processing module; when the EED bypass switch is in the "normal" position, the acquisition circuit outputs the normal signal 3.3V to the MCU processing module.

[0046] In order to realize the local change of the position information of the platform door door number, as a preferred solution, it further comprises a dial switch connected with the MCU processing module, for setting the position information of the dial switch;

[0047] The MCU processing module acquires the position information of the dial switch for representing the platform door door number in time, and when the position information of the dial switch changes, the MCU processing module sends an IP address initialization command to the network port module; the network port module is used for receiving the IP address initialization command sent by the MCU processing module, and the network port module sets the IP address as the position information of the dial switch.

[0048] As a preferred solution, it further comprises an isolation voltage reduction module for supplying power to the MCU processing module, the network port module and the 485 communication module.

[0049] In order to confirm that the platform door has been safely closed and locked before the train departs, the bus command module is used for receiving the safety loop signal sent by the PSC cabinet, the safety loop signal passes through the interface module and is connected in series with the closing state travel switch of the sliding door and the locking state travel switch of the emergency door, and finally returns to the PSC cabinet through the bus command module.

[0050] As a preferred solution, the bus command module receives the safety loop input signal V1 sent by the PSC cabinet, and the safety loop input signal V1 enters the main sliding door travel switch through the interface module; and then returns to the interface module through the normally closed contact of the main sliding door travel switch, to obtain the main sliding door safety loop output signal V2;

[0051] The main sliding door safety loop output signal V2 enters the slave sliding door travel switch through the interface module; and then returns to the interface module through the normally closed contact of the slave sliding door travel switch, to obtain the sliding door safety loop output signal V3;

[0052] The sliding door safety loop output signal V3 passes through the bus command module, to obtain the emergency door safety loop input signal V4; the emergency door safety loop input signal V4 enters the main emergency door travel switch through the interface module, and then returns to the interface module through the normally closed contact of the main emergency door travel switch, to obtain the main emergency door safety loop output signal V5;

[0053] The main emergency door safety loop output signal V5 enters a slave emergency door travel switch through an interface module, and then returns to the interface module from the slave emergency door travel switch to obtain a safety loop output signal V6.

[0054] The safety loop output signal V6 enters a PSC cabinet through a bus command module.

[0055] When a certain platform door fails, in order to avoid affecting the normal operation of the train and ensure the conduction of the safety loop, as an optional mode, the LCB switch is connected between the safety loop input signal V1 and the sliding door safety loop output signal V3, and when the LCB switch is rotated to the "manual opening" or "manual closing" position, the safety loop is short-circuited.

[0056] The EED bypass switch is connected between the emergency door safety loop input signal V4 and the safety loop output signal V6, and when the EED bypass switch is rotated to the bypass state, the fault emergency door safety loop is short-circuited.

[0057] The network port board and the interface board for network communication with the PSC cabinet and the interface board are integrated into one interface board, so that the wiring of the DCU circuit board is simpler.

[0058] Further, the MCU processing module, the network port module and the 485 communication module are arranged in the interface board, so that information and commands other than the door opening command can be transmitted between the PSC cabinet and the main control board, and the MCU processing module is connected with the position isolation module and the three-time obstacle module to send the position isolation command and the three-time obstacle door opening command to the position isolation module and the three-time obstacle module.

[0059] Further, the MCU processing module is connected with the LCB interface module and the EED bypass module, can receive the state of the LCB switch and the bypass switch collected by the LCB interface module and the EED bypass module, and send the state information to the PSC cabinet according to the state.

[0060] Further, the dial switch is arranged, the MCU processing module collects the position information of the dial switch at regular intervals, when the position information of the dial switch changes, the MCU processing module sends an IP address initialization command to the network port module, so that the IP address information can be changed on site.

[0061] The present application integrates the existing independently set network port board, interface board and alignment isolation module, three obstacle encountering modules into an interface board, thereby greatly reducing the complicated wiring problem, and simultaneously realizing alignment isolation, three obstacle encountering door opening, realizing PSC cabinet real-time monitoring door state, and in-situ IP address changing function.

[0062] The present application further outputs and inputs safety signals through the bus command module, realizes that when the safety circuit is conducted, it means that the sliding door and emergency door are in the closed state, and ensures safety by connecting the travel switch of the sliding door and the travel switch of the emergency door in series in the safety circuit.

[0063] In summary, the present application realizes high integration of the interface board, reduces wiring complexity, improves device reliability, reduces failure rate, simplifies equipment and reduces spare parts types, optimizes and perfects the function of the interface board of the platform door. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a structure schematic diagram of the DCU interface board of the subway platform door provided by the present application;

[0065] Figure 2 is a schematic diagram of the bus command module of the DCU interface board of the subway platform door provided by the present application;

[0066] Figure 3 is a schematic diagram of the alignment isolation module of the DCU interface board of the subway platform door provided by the present application;

[0067] Figure 4 is a schematic diagram of the three obstacle encountering module of the DCU interface board of the subway platform door provided by the present application;

[0068] Figure 5 is a schematic diagram of the LCB interface module of the DCU interface board of the subway platform door provided by the present application;

[0069] Figure 6 is a schematic diagram of the LCB interface module of the DCU interface board of the subway platform door provided by the present application;

[0070] Figure 7 is a schematic diagram of the EED bypass switch module of the DCU interface board of the subway platform door provided by the present application;

[0071] Figure 8 is a schematic diagram of the alignment isolation of the DCU interface board of the subway platform door provided by the present application;

[0072] Figure 9 is the MCU processing module of the subway platform door DCU interface board provided by the application and the hardware handshake signal transmission principle diagram of the main control board;

[0073] Figure 10 is the principle diagram of the three-time obstacle of the subway platform door DCU interface board provided by the application;

[0074] Figure 11 is the principle diagram of the safety loop of the subway platform door DCU interface board provided by the application;

[0075] Figure 12 is the safety loop circuit diagram of the subway platform door DCU interface board provided by the application;

[0076] Figure 13 is the relay driving module one circuit diagram of the alignment isolation module of the subway platform door DCU interface board provided by the application;

[0077] Figure 14 is the relay driving module two circuit diagram of the three-time obstacle module of the subway platform door DCU interface board provided by the application;

[0078] Figure 15 is the DI acquisition circuit / input acquisition circuit diagram of the LCB interface module and EED bypass switch module of the subway platform door DCU interface board provided by the application.

[0079] The figure mark explanation: bus command module 100; wiring terminal one X11, wiring terminal two X12; alignment isolation module 200, relay driving module one 210, alignment isolation relay K7; three-time obstacle module 300, relay driving module two 310, three-time obstacle relay unit 320: three-time obstacle relay one K6, three-time obstacle relay two K5; LCB interface module 400, LCB switch interface terminal 410, DI acquisition circuit 420, relay unit 430, LCB relay one K1, LCB relay two K3, LCB relay three K4; interface module 500, wiring terminal three X18, wiring terminal four X19; MCU processing module 600; network port module 700; 485 communication module 800; dial switch 900; EED bypass module 1000, wiring terminal 1010, 1-way input acquisition circuit 1020; isolation voltage reduction module 1100; LCB switch 10, EED bypass switch 20, main DCU sliding door travel switch 1; slave DCU sliding door travel switch 2; main DCU emergency door travel switch 3, slave DCU emergency door travel switch 4; PSC cabinet A; main control board B. DETAILED DESCRIPTION

[0080] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, but the protection scope of the present application cannot be limited by the preferred embodiments.

[0081] Embodiment one, see Figure 1 The DCU interface plate of the subway platform door according to the present application is located between a PSC cabinet A and a main control board B, the PSC cabinet A is also called a central control panel and is located in a platform door equipment room; the DCU interface plate comprises a bus command module 100, a position isolation module 200, a three-time obstacle module 300, an LCB interface module 400, an interface module 500, an MCU processing module 600, a network port module 700, a 485 communication module 800, a dial switch 900, an EED bypass module 1000 and an isolation voltage reduction module 1100; wherein:

[0082] The bus command module 100:

[0083] The bus command module 100 is connected with the PSC cabinet A and is used for receiving a door opening command signal sent by the PSC cabinet A and receiving a safety loop output signal sent by the PSC cabinet and inputting a safety loop signal to the PSC cabinet, the safety loop signal is used for determining that the sliding door and the emergency door are all in the locking state. Figure 2 The bus command module 100 comprises two 12P plug-in terminals, i.e. a first terminal X11 and a second terminal X12, which are used for receiving a door opening command signal and a door closing command signal sent by the PSC cabinet through a hard line; the bus command module 100 is also connected with the position isolation module 200 and the three-time obstacle module 300 and sends the door opening command signal to the position isolation module 200 and sends the door closing command signal to the three-time obstacle module 300;

[0084] The bus command module 100 is connected with the interface module 500 and is also used for receiving a safety loop signal sent by the PSC cabinet and sending the input signal of the safety loop to the interface module 500, the output signal of the safety loop is output from an output end of the interface module 500 to the bus command module 100, and the bus command module 100 finally returns the output signal of the safety loop to the PSC cabinet.

[0085] The position isolation module 200:

[0086] The position isolation module 200 is connected with the three-time obstacle module 300 and is used for sending the received door opening command signal to the three-time obstacle module 300; the position isolation module 200 is connected with the MCU processing module 600 and is used for receiving a position isolation signal sent by the MCU processing module 600 and performing position isolation.

[0087] See Figure 1 and Figure 3The alignment isolation module 200 comprises a relay drive module 1 210 and an alignment isolation relay K7; wherein the bus command module 100 is connected with the three-time obstacle module 300 through the normally closed contact of the alignment isolation relay K7; the alignment isolation module 200 is used for receiving the door opening command signal sent by the bus command module 100, and outputs the door opening command signal to the three-time obstacle module 300 through the normally closed contact of the alignment isolation relay K7;

[0088] The MCU processing module 600 is connected with the relay drive module 1 210, and the relay drive module 1 210 is used for driving the alignment isolation relay K7, that is, the output end of the relay drive module 1 210 is connected with one end of the alignment isolation relay K7, and the other end of the alignment isolation relay K7 is connected with the 48V power supply. The relay drive module 1 210 is used for receiving the alignment isolation signal sent by the MCU processing module 600, and after the alignment isolation signal is optically coupled and electrically converted, the alignment isolation control signal ISOLATE(0V) is sent to drive the alignment isolation relay K7 to act. The alignment isolation relay K7 is powered to attract, the normally closed contact of the alignment isolation relay K7 is disconnected, the door opening command signal sent by the bus command module 100 is cut off, and the DCU does not execute the door opening and closing action. The purpose of alignment isolation is achieved, that is, when a train door fails, the door opening command signal corresponding to the failed door sent by the bus command module 100 is cut off.

[0089] Referring to Figure 13 The relay drive module 1 210 is an optical coupling isolation circuit, which comprises a light emitting diode D50, an optical coupling UD2 and a current limiting resistor R71. The output end of the MCU processing module 600 is connected with the negative electrode of the light emitting diode D50, the positive electrode of the light emitting diode D50 is connected with the negative electrode of the internal light emitting diode AK of the optical coupling UD2, one end of the current limiting resistor R71 is connected with the 3.3V voltage, and the other end is connected with the positive electrode of the light emitting diode AK. One end of the diode CE of the output end of the optical coupling UD2 is connected with the ground, and the other end is connected with the coil of the alignment isolation relay K7 and then connected with the 48V voltage.

[0090] When the MCU processing module 600 sends the alignment isolation command signal 0V, the input end of the optical coupling UD2 forms a 3.3V loop, the internal light emitting diode AK emits light, the internal diode CE is turned on, the output end sends the alignment isolation control signal ISOLATE(OV), the coil of the alignment isolation relay K7 is turned on, a 48V loop is formed, the coil of the alignment isolation relay K7 is powered, the alignment isolation relay K7 is attracted, the normally closed contact of the alignment isolation relay K7 is disconnected, the door opening command signal sent by the bus command module 100 is cut off, and the door opening and closing action is not executed.

[0091] The three-time obstacle module 300:

[0092] The alignment isolation module 200 is connected with the bus command module 100 for receiving the open door command signal and connected with the LCB interface module 400 for sending the open door command signal to the LCB interface module 400; and connected with the interface module 500 for sending the close door command signal to the interface module 500; in addition, the three-time obstacle module 300 is connected with the MCU processing module 600 for receiving the obstacle open door signal sent by the MCU processing module 600 and cutting off the open and close door command signals from the bus command module 100 to send the local three-time obstacle open door command.

[0093] Referring to Figure 1 and Figure 4 which comprises the three-time obstacle relay unit 320 and the relay drive module two 310, the three-time obstacle relay unit 320 comprises: the three-time obstacle relay one K6, the three-time obstacle relay two K5.

[0094] The alignment isolation module 200 is connected with the LCB interface module 400 through the normally closed contact of the three-time obstacle relay one K6, and the bus command module 100 is connected with the interface module 500 through the normally closed contact of the three-time obstacle relay two K5; the three-time obstacle module 300 is used for receiving the open door command signal sent by the alignment isolation module 200 and transmitting the open door command signal to the LCB interface module 400 through the normally closed contact of the three-time obstacle relay one K6; the close door command signal sent by the bus command module 100 enters the interface module 500 through the normally closed contact of the three-time obstacle relay two K5;

[0095] MCU processing module 600 is connected with relay drive module two 310, relay drive module two 310 is used for controlling driving three times obstacle relay one K6, three times obstacle relay two K5, namely, the output end of relay drive module two 310 is connected with one end of three times obstacle relay one K6, three times obstacle relay two K5, the other end of three times obstacle relay one K6, three times obstacle relay two K5 is connected with 48V power supply, and the normally open contact of three times obstacle relay one K6 is connected with 48V power supply.Obstacle door opening signal sent by MCU processing module 600 is received by relay drive module two 310, and relay drive module two 310 sends obstacle door opening control signal OBSTACLE (0V) after the obstacle door opening signal is carried out optical coupling isolation and level conversion, and drives three times obstacle relay one K6 to act, and the electric coil of three times obstacle relay one K6 is attracted, and the normally closed contact is disconnected, and the normally open contact is closed, when the normally closed contact is disconnected, the normally open contact of three times obstacle relay one K6 is closed, and 48V voltage is connected, and the door opening command is sent alone, and the obstacle door opening is completed; the normally closed contact is disconnected, and the bus door opening command signal from the PSC cabinet is cut off, that is, the door opening command from the alignment isolation module 200 is cut off; at the same time, the electric coil of three times obstacle relay two K5 is driven by obstacle door opening control signal OBSTACLE (0V), the normally closed contact is disconnected, and the door closing command signal from bus command module 100 to interface module 500 is cut off.

[0096] Referring to Figure 14 The circuit diagram of relay drive module two 310 is shown in the figure, which comprises light emitting diode D51, current limiting resistor R74 and optical coupler UD1, the negative electrode of light emitting diode D51 is connected with the output end of MCU processing module 600, the positive electrode of light emitting diode D51 is connected with the negative electrode of internal light emitting diode AK of optical coupler UD1, one end of current limiting resistor R74 is connected with 3.3V voltage, and the other end is connected with the positive electrode of light emitting diode AK; the 3rd end of diode CE of optical coupler UD2 output end is connected with ground, and the 4th end is connected with the coil of three times obstacle relay two K5 and three times obstacle relay one K6, and the other end of the coil of K5 and K6 is connected with 48V voltage.

[0097] When the MCU processing module 600 sends out the encounter obstacle open door signal 0V, the light coupling UD1 input end forms a 3.3V loop, the internal light emitting diode AK emits light, the internal diode CE is turned on, the output end outputs the control signal OBSTACLE (0V), and a 48V loop is formed with the three encounter obstacle relay two K5 and the three encounter obstacle relay one K6 coil. The three encounter obstacle relay two K5 and the three encounter obstacle relay one K6 coil are powered, the three encounter obstacle relay one K6 is attracted, the normally closed contact is disconnected, the open door command signal sent by the bus command module 100 is cut off, and at the same time, the normally open contact is closed, the 48V local open door signal is turned on, and local open door is realized in the three encounter obstacle mode. The three encounter obstacle relay two K5 is attracted, the normally closed contact is disconnected, and the close door command signal sent by the bus command module 100 is cut off.

[0098] LCB interface module 400, wherein LCB is the abbreviation of "Local control box", which is a local control box.

[0099] Referring to Figure 1 , 5 , 6, the interface module 500 is connected, used for sending the open door command signal sent by the three encounter obstacle module 300 to the interface module 500; the MCU processing module 600 is connected, and the LCB switch 10 on the platform door is connected, used for collecting the state signal of the LCB switch 10. Generally, the LCB switch 10 on the high platform door is arranged on the lintel, and the LCB switch 10 on the low platform door is arranged in the side box, and the LCB state signal is uploaded to the MCU processing module 600.

[0100] Among them, the LCB switch 10 is a four-bit key switch, which has automatic, manual closing, manual opening and isolation four states. In the normal signal switch door condition, the LCB switch 10 is in the "automatic" position, allowing the interface module 500 to receive the "open door command" of the PSC cabinet. When the LCB switch 10 is in the "isolation" position, the single sliding door unit is isolated from the system, cutting off the power supply of the unit, without affecting the normal work of the whole system, facilitating maintenance. In this mode, the safety circuit of this door is not bypassed. When the LCB switch is in the "manual closing" or "manual opening" position, the open door command from the PSC cabinet (central control panel) is not executed. The door can be operated by the "manual closing" or "manual opening" arranged on the local control box. The safety circuit of this door is bypassed.

[0101] When the LCB switch is in the "automatic" position, the interface module 400 sends the open door command signal sent by the three encounter obstacle module 300 to the LCB interface module 400 to control the normally open contact of the LCB relay three K4 to be closed, and sends the open door command signal to the interface module 500.

[0102] Referring to Figure 5 , 6 ​, specifically, the LCB interface module 400 comprises a DI acquisition circuit 420, an LCB switch interface terminal 410 and a relay unit 430, wherein the LCB switch interface terminal 410 is a 12P interface terminal, the relay unit 430 comprises an LCB relay one K1, an LCB relay two K3 and an LCB relay three K4; the LCB switch interface terminal 410 is connected with an LCB switch 10 (a local control box) for receiving a state signal of the LCB switch 10, the LCB switch 10 has three switch position states of "manual on", "manual off" and "automatic" and an "isolated" position state of non-manual on, non-manual off and non-automatic, the DI acquisition circuit 420 is connected between the MCU processing module 600 and the LCB switch interface terminal 410 for delivering the state signal of the LCB switch 10 to the MCU processing module 600; the three-time obstacle module 300 is connected with the interface module 500 through the LCB relay three K4 for delivering an open door command signal to the interface module 500; the LCB switch 10 is connected with the relay unit 430 through the LCB switch interface terminal 410 and controls the relay unit 430 to act; specifically, an automatic signal PCC on (48V) output end of the LCB switch interface terminal 410 is connected with one end of the LCB relay two K3 and the LCB relay three K4, the other end of the LCB relay two K3 and the LCB relay three K4 is connected with 0V voltage; a manual open signal OPEN (48V) output end of the LCB switch interface terminal 410 is connected with one end of the LCB relay one K1, the other end of the LCB relay one K1 is connected with 0V voltage; a power signal POWEREN output end of the LCB switch interface terminal 410 is connected with the interface module 500; the power signal POWEREN output end of the LCB switch interface terminal 410 is connected with the MCU processing module 600 through the DI acquisition circuit 420.

[0103] When the LCB switch 10 (local control box switch) is in the "automatic position", the automatic signal is sent: PCC on and the power signal POWEREN are both 48V, the LCB relay two K3 and the LCB relay three K4 are in the power-on state (PCC on is 48V), the normally open contact is closed, and the normally closed contact is open. At this time, the door opening signal 1 and the door opening signal 2 from the bus are transmitted to the interface module 500 through the closed normally open contact of the relay three K4, and then continue to be transmitted to the main control board. The power signal POWEREN is a high-level signal: 48V, which is transmitted to the interface module 500. At the same time, after the DI acquisition circuit 420 acquires the high-level state of the power signal POWEREN, the power state signal POWEN (0V) is generated and sent to the MCU processing module 600, and the MCU processing module 600 determines that it is in a non-isolated state; the LCB manual control state signal LCBCON is cut off by the normally closed contact of the LCB relay two K3, and cannot be transmitted to the interface module 500 and the main control board.

[0104] When the LCB switch 10 is in the "manual open" position, the LCB switch 10 sends the manual open signal OPEN, which is 48V, the LCB door opening signal 1 (LCB DOP1), the LCB door opening signal 2 (LCB DOP2) and the 48V power signal POWEREN. The manual open signal OPEN makes the LCB relay one K1 in the power-on state, the normally open contact is closed, and the normally closed contact is open. The local door opening signal DOP1IN (48V) and DOP2IN (0V) are sent to the interface module 500 and the main control board through the two normally open contacts of the LCB relay one K1; the power signal POWEREN is in a high-level state: 48V, which is transmitted to the interface module 500. At the same time, after the high-level state of the power signal POWEREN is acquired by the DI acquisition circuit 420, the power state signal POWEN (0V) is generated and sent to the MCU processing module 600. At this time, the MCU processing module 600 determines that it is in a non-isolated state;

[0105] When the LCB switch 10 is in the manual off position, no automatic signal PCC on is sent, PCCon is 0V, the power supply signal POWEREN is in a high level state 48V, the power supply signal POWEREN (48V) is transmitted to the interface module 500, and after being collected by the DI collection circuit 420, the power supply state signal POWEN (0V) is generated and sent to the MCU processing module 600, and the MCU processing module 600 determines that it is in a non-isolation state. The LCB relay two K3 and the LCB relay three K4 are in a loss of power state (i.e. the original state), the normally open contact is disconnected, and the normally closed contact is closed. At this time, the door opening signal 1 and the door opening signal 2 from the three obstacle encountering modules 300 are cut off by the normally open contact of the LCB relay three K4, and cannot be transmitted to the interface module 500 and the main control board B. The LCB manual control state signal LCBCON is transmitted to the interface module 500 and the main control board B through the normally closed contact of the LCB relay two K3.

[0106] When the LCB switch 10 is in the isolation position, i.e. in the non-automatic position, the non-manual open position, and the non-manual off position, the automatic signal PCC on is 0V, the manual opening signal OPEN is 0V, and the low-level power supply signal POWEREN is 0V; the LCB relay one K1, the LCB relay two K3, and the LCB relay three K4 are in a loss of power state (i.e. the original state). When the DI collection circuit 420 collects the power supply signal POWEREN as 0V, which is in a low level state, the power supply state signal POWEN (3.3V) is generated and sent to the MCU processing module 600, and the MCU processing module 600 determines that the LCB switch state is in an "isolation" state at this time.

[0107] Referring to Figure 15 , the DI collection circuit 420 comprises a current limiting resistor R94, a light emitting diode D35, an optocoupler U9, and a pull-up resistor R86; wherein: the power output end of the LCB switch 10 is connected in series with the current limiting resistor R94, and then connected to the positive electrode of the light emitting diode D35, the negative electrode of the light emitting diode D35 is connected to the positive electrode of the internal light emitting diode of the optocoupler U9, and the negative electrode of the internal light emitting diode of the optocoupler U9 is grounded; one end of the pull-up resistor R86 is connected to a 3.3V voltage, and the other end is respectively connected to the positive electrode of the diode of the output end of the optocoupler U9 and the input end of the MCU processing module 600, and the negative electrode of the diode of the output end of the optocoupler U9 is grounded;

[0108] When the LCB switch 10 is in a non-isolation state, the output power supply signal POWEREN is 48V, forming a 48V loop, the 15-16 diode of the output end of the optocoupler U9 is turned on, the left output end forms a 3.3V loop, and the POWEN signal input to the MCU processing module 600 changes from 3.3V to 0V, i.e. the MCU processing module 600 does not collect the isolation state signal;

[0109] When the LCB switch 10 is in the isolation state, the output power signal POWEREN is 0V, in the low level state, the photo-coupler U9 output end is not turned on, the power state signal POWEN collected by the MCU processing module 600 is 3.3V, at this time, it is determined that it is in the "isolation" state.

[0110] The interface module 500 is connected with the main control board B, and is used for transmitting data between the main control board B.

[0111] Referring to Figure 1 and Figure 12 , the interface module 500 is connected with the main control board B, and is used for transmitting data between the main control board B. It includes a 40P wiring terminal three X18 and a 40P wiring terminal four X19, specifically, it is used for receiving the door opening command signal sent by the LCB interface module 400, and sending the signal to the main control board B, receiving the door closing command signal sent by the three-time obstacle module 300, and sending the door closing command signal to the main control board.

[0112] The interface module 500 is connected with the MCU processing module 600 through the 485 communication module 800, and is used for receiving the data query command sent by the MCU processing module 600 through the 485 communication module 800 at regular intervals, and uploading the command to the main control board; correspondingly, the interface module 500 is used for receiving the data queried by the main control board, and transmitting the above-mentioned data queried to the MCU processing module 600 through the 485 communication module 800.

[0113] The interface module 500 is used for receiving the door body three-time obstacle signal sent by the main control board, and transmitting the door body three-time obstacle signal to the MCU processing module 600 through the 485 processing module 800.

[0114] The MCU processing module 600 is connected with the interface module 500, and is connected with the alignment isolation module 200, the three-time obstacle module 300, the LCB interface module 400, the network control module 700, the dial switch 900 and the bypass interface module 1000 through the 485 communication module 800.

[0115] The MCU processing module 600 is connected with the interface module 500, and is connected with the alignment isolation module 200, the three-time obstacle module 300, the LCB interface module 400, the network control module 700, the dial switch 900 and the bypass interface module 1000 through the 485 communication module 800.

[0116] Referring to Figure 1 , Figure 6, MCU processing module 600 and LCB interface module 400 are connected, for receiving through LCB interface module 400 collected in the LCB switch 10 of the "isolation" state signal (LCB state has automatic, manual off, manual open, isolation 4 kinds, here only collect LCB isolation bit state); MCU processing module 600 will be isolated state signal, through the network interface module 700 in the form of network cable upload to the host computer (located in the PSC cabinet), the host computer will send fault information (platform number and fault platform door number) to the signal system, the signal system will forward this information to the vehicle related equipment, isolation and the corresponding train door of the isolation platform door;

[0117] Referring to Figure 1 、 7 , MCU processing module 600 and EED bypass interface module 1000 are connected, and the MCU processing module 600 is used for receiving the state of the EED bypass switch 20 of the emergency door bypass box collected by the EED bypass interface module 1000. The state of the EED bypass switch 20 is divided into normal and bypass 2 kinds. When in bypass state, the bypass switch connects the safety circuit, and uploads the collected "bypass" state of the above EED bypass switch to the PSC cabinet A through the network interface module 700 in the form of network cable; the PSC cabinet A sends the fault information (platform number and fault emergency door number) to the signal system.

[0118] MCU processing module 600 and network interface module 700, alignment isolation module 200 are connected, MCU processing module 600 is used for receiving the corresponding train door alignment isolation information transmitted by PSC cabinet A through network interface module 700, after processing the alignment isolation information, alignment isolation signal is sent to alignment isolation module 200;

[0119] MCU processing module 600 and 485 communication module 800 are connected, and the third time obstacle module 300 is connected, for receiving the door body three times obstacle signal sent by the main control board through the interface module 500 transmitted by the 485 communication module 800, after processing the three times obstacle signal, the obstacle opening door signal is sent to the third time obstacle module 300;

[0120] MCU processing module 600 and dial switch 900 are connected, for collecting the position information of dial switch 900 at regular intervals, when the position of dial switch 900 changes, MCU processing module 600 sends IP address initialization command to network interface module 700;

[0121] MCU processing module 600 is connected with interface module 500, for collecting hardware handshake signal from main control board through interface module 500, when the hardware handshake signal is high level, MCU processing module 600 sends query data command to interface module 500 through 485 communication module 800, and interface module 500 transmits the query data command to main control board; correspondingly, MCU processing module 600 receives the query data sent by main control board through interface module 500 and 485 communication module 800, and stores the query data after processing in internal FLASH, and the data includes but is not limited to door body fault and state information;

[0122] MCU processing module 600 is connected with PSC cabinet A through network port module 700, for receiving data query command sent by PSC cabinet through network port module 700 in the form of network cable, and MCU processing module 600 uploads the query data stored in internal FLASH, i.e. door body fault and state information, to PSC cabinet A in the form of network cable through network port module 700, to realize real-time state monitoring of PSC on door body.

[0123] Network port module 700 is connected between PSC cabinet and MCU processing module 600;

[0124] For receiving the state signal of on-site control box LCB switch 10 and EED bypass switch 20 sent by MCU processing module 600, and uploading the state signal to PSC cabinet in the form of network cable;

[0125] For receiving the vehicle door fault signal transmitted by platform door PSC cabinet in the form of network cable, and sending the vehicle door fault signal to MCU processing module 600 through network port module 700;

[0126] For receiving the query data command sent by PSC cabinet in the form of network cable, and transmitting the query data command to MCU processing module 600,

[0127] For receiving the door body fault and state information stored in internal FLASH of MCU processing module 600, and uploading the door body fault and state information to PSC cabinet in the form of network cable through network port module 700, to realize real-time state monitoring of PSC on door body.

[0128] For receiving the IP address initialization command sent by MCU processing module 600, network port module 700 sets the IP address as the position information of dial switch 900, to realize the function of changing the IP address of network port module 700 on site.

[0129] 485 communication module 800 is connected between MCU processing module 600 and interface module 500;

[0130] For receiving the data query command sent by MCU processing module 600 in time, and uploading the command to the main control board through interface module 500; correspondingly, for receiving the queried data transmitted by main control board B through interface module 500, and transmitting the above data to MCU processing module 600; for receiving the door body three obstacle signals sent by main control board B through interface module 500, and transmitting the door body three obstacle signals to MCU processing module 600;

[0131] Dial switch 900: connected with MCU processing module 600, setting the position information of dial switch 900 (the position information includes 0-99, and the number represents the door number of the platform door), transmitting the position information to MCU processing module 600, and used for setting the IP address of network interface module 700, so as to realize the function of changing the IP address of network interface module 700 on site.

[0132] Referring to Figure 7 EED bypass module 1000: for collecting the state of EED bypass switch 20 in the emergency door bypass box, and uploading the bypass state to MCU processing module 600; MCU processing module 600 sends the "bypass" state signal to PSC cabinet through network interface module 700.

[0133] Specifically, it includes a 6P terminal 1010 and a 1-way input acquisition circuit 1020; the 6P terminal 1010 is connected with the EED bypass switch 20 in the safety circuit, the output end of the 6P terminal 1010 is connected with the input end of the 1-way input acquisition circuit 1020, for conveying the bypass signal EED_PL to the 1-way input acquisition circuit 1020, the 1-way input acquisition circuit 1020 is connected with the MCU processing module 600, for conveying the bypass output signal EED-PL to the MCU processing module 600. The EED bypass switch 20 is a 2-position key switch, having "normal" and "bypass" two states, when the EED bypass switch 20 is in the "bypass" position, on the one hand, the safety circuit is turned on, on the other hand, the EED bypass switch 20 outputs the EED bypass state signal (EED PL) 0V to the 6P terminal 1010, the 6P terminal 1010 outputs the EED bypass signal (EED_PL) 0V to the acquisition circuit 1020, the EED bypass state signal EED_PL signal is processed by the input acquisition circuit 1020 and then outputs the bypass output signal EED-PL (0V) to the MCU processing module 600; when the EED bypass switch is in the "normal" position, the bypass switch is in the open state, the switch has no bypass signal EED-PL output, the 1-way input acquisition circuit 1020 outputs the normal signal 3.3V to the MCU processing module 600. The MCU processing module 600 sends the 0V bypass output signal EED-PL to the upper computer (in the PSC cabinet) through the network port module 700, and the upper computer sends the fault information (platform number and fault platform door number) to the signal system.

[0134] Referring to Figure 15 , the 1-way input acquisition circuit 1020 is shown in the figure, which includes: a current limiting resistor R92, a light emitting diode D21, an optocoupler U9 and a pull-up resistor R87; wherein: the bypass signal EED PL output end of the EED bypass switch 20 is connected in series with the current limiting resistor R92, and then connected with the negative electrode of the light emitting diode D21, the positive electrode of the light emitting diode D21 is connected with the negative electrode of the internal 3-4 light emitting diode of the optocoupler U9, and the positive electrode of the internal light emitting diode 3-4 of the optocoupler U9 is connected with the 48V voltage; one end of the pull-up resistor R87 is connected with the 3.3V voltage, and the other end is respectively connected with the positive electrode of the 13-14 diode of the output end of the optocoupler U9 and the input end of the MCU processing module 600, and the negative electrode of the 13-14 diode of the output end of the optocoupler U9 is connected with the ground;

[0135] When the EED bypass switch 20 is in the bypass state, the input acquisition circuit 1020 inputs the emergency door bypass signal EED PL as 0V, a 48V loop is formed, the light coupling U9 output end 13-14 diode is turned on, the left output end forms a 3.3V loop, the bypass output signal EED-PL of the MCU processing module 600 changes from 3.3V to 0V, and the MCU processing module 600 sends the collected bypass output signal EED-PL (0V) to the upper computer through the network port module 700;

[0136] When the EED bypass switch 20 is in the normal state, there is no bypass state signal EED PL output, the input end and the output end of the light coupling U9 are not turned on, and the normal signal collected by the MCU processing module 600 is 3.3V. At this time, it is in the "normal" state.

[0137] The isolation voltage reduction module 1100 is connected with the MCU processing module 600, the network port module 700 and the 485 communication module 800, and is used for power supply of the signal circuit of the MCU processing module 600, the network port module 700 and the 485 communication module 800.

[0138] Embodiment two, see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The control process of the subway platform door DCU interface board in the normal state is as follows:

[0139] 1. The bus door opening command signal (DOP1, DOP2, or door opening signal 1, door opening signal 2) from the PSC cabinet A enters through the 13, 14 terminals of the wiring terminal two X12 of the bus command module 100, is output from the 1, 2 terminals of the wiring terminal one X11, enters the two normally closed contacts of the alignment isolation relay K7 of the alignment isolation module 200, and obtains the signals DOP1IN and DOP2IN.

[0140] 2. The alignment isolation module 200 continues to deliver the two signals DOP1IN and DOP2IN to the three-time obstacle module 300, and the two normally closed contacts of the three-time obstacle relay one K6 of the three-time obstacle module 300 are obtained again to obtain the signals DOP1-IN and DOP2-IN.

[0141] 3. The three-time obstacle module 300 delivers the signals DOP1-IN and DOP2-IN to the LCB interface module 400, and the two normally open contacts of the LCB relay three K4 of the LCB interface module 400 are obtained to obtain the signals DOP1_IN and DOP2_IN.

[0142] 4. DOP1_IN, DOP2_IN signals enter the interface module 500 and pass through the interface module 500 to the main control board B.

[0143] Example three, see Figure 1 , Figure 4 , the control flow of the subway platform door DCU interface board described in example one transmits the closing command signal in the normal state:

[0144] 11. The bus command module 100 receives the bus closing command signal DCL from the PSC cabinet A and transmits it to the three obstacle module 300. The closing signal DCL passes through the normally closed contact of the three obstacle relay K5 (OMRON-G5V-2_48VDC) in the three obstacle module 300 to obtain the signal DCL-IN;

[0145] 12. DCL-IN enters the interface module 500 and is transmitted to the main control board B through the interface module 500.

[0146] Example four, see Figure 1 , Figure 3 , Figure 7 , when a train door fails, the subway platform door DCU interface board described in example one needs to be isolated and aligned with the corresponding platform door:

[0147] 21. When the train door fails, the station door host computer (located in the PSC cabinet) transmits the door failure information to the network port module 700 in the form of a network cable. The network port module 700 sends the above-mentioned door failure information to the MCU processing module 600;

[0148] 22. The MCU processing module 600 receives the corresponding train door failure information transmitted by the network port module 700, and after processing by the MCU, sends an alignment isolation signal to the alignment isolation module 200;

[0149] 23. The alignment isolation module 200 receives the alignment isolation signal sent by the MCU processing module 600, that is, the relay drive module 1 210 receives the alignment isolation signal. After the relay drive module 1 210 performs optical coupling isolation and level conversion on the alignment isolation signal, it sends an alignment isolation control signal ISOLATE (0V) to drive the alignment isolation relay K7 to act. The alignment isolation relay K7 is attracted, and the normally closed contact of the alignment isolation relay K7 is disconnected, cutting off the transmission line of the bus opening command signal to the main control board B, that is, cutting off the transmission route between the bus command module 100 and the three obstacle module 300, and the DCU does not perform the opening action of the isolated door.

[0150] Example five, see Figure 1 , Figure 5 , Figure 6、 Figure 8 The DCU interface board of the subway platform door according to the embodiment one, when a certain platform door fails, the LCB switch 10 of the on-site control box is manually rotated to the isolation state, the power supply of the main control board is cut off, and the vehicle door needs to be isolated and aligned:

[0151] 31. The LCB switch 10 of the on-site control box is manually rotated to the isolation state (i.e. in the non-automatic position, the non-hand-on and non-hand-off position), and the power supply of the main control board is cut off; at this time, when the DI acquisition circuit 420 in the LCB interface module 400 acquires the low level power signal POWEREN (0V), i.e. the LCB is in the isolation position, the LCB relay three K4 is in the release state, the normally open contact is disconnected, the normally closed contact is closed, and the door opening command signal from the PSC cabinet is cut off;

[0152] 32. After the LCB interface module 400 receives the low level power signal POWEREN (0V), the power state signal POWEN is generated and sent to the MCU processing module 600, and the MCU processing module 600 determines that it is in the isolation state;

[0153] 33. The MCU processing module 600 uploads the isolation state signal to the upper computer (located in the PSC cabinet) in the form of network cable through the network port module 700, the upper computer sends the fault information (platform number and fault platform door number) to the signal system, the signal system forwards the information to the related equipment of the vehicle, and the train door corresponding to the isolated platform door is isolated.

[0154] Embodiment six, see Figure 1 、 Figure 8 The DCU interface board of the subway platform door according to the embodiment one, which can realize the real-time state monitoring of the PSC cabinet on the door body through the 485 to network function.

[0155] 41. The MCU processing module 600 acquires the hardware handshake signal from the main control board B through the interface module 500, and when the hardware handshake signal is high, it indicates that the main control board is ready;

[0156] 42. At this time, the MCU processing module 600 sends data query commands to the main control board through the 485 communication module 800 and the interface module 500 at regular intervals;

[0157] 43. After the main control board receives the data query command, it performs query and transmits the queried data to the MCU processing module 600 through the interface module 500 and the 485 communication module 800;

[0158] 44. The MCU processing module 600 stores the data (including but not limited to door body failure and state information) received by the 485 communication module 800 from the main control board in the internal FLASH after processing.

[0159] 45. MCU processing module 600 receives the query data command sent by PSC cabinet through network interface module 700 in the form of network cable, MCU processing module 600 uploads the data information (door body fault and state information) stored in the internal FLASH to PSC cabinet through network interface module 700 in the form of network cable, and realizes the real-time state monitoring of PSC cabinet on the door body.

[0160] Example seven, see Figure 1 , Figure 8 , the DCU interface board of the subway platform door described in embodiment one can realize the function of changing the IP address of network interface module 700 on site:

[0161] MCU processing module 600 collects the information of dial switch 900 regularly, when the position of dial switch 900 changes, MCU processing module 600 sends IP address initialization command to network interface module 700, network interface module 700 sets the IP address as the position information of dial switch 900, and realizes the function of changing the IP address of network interface module 700 on site.

[0162] Example eight, see Figure 1 , Figure 9 , the DCU interface board of the subway platform door described in embodiment one can realize the function of opening the door three times when encountering obstacles:

[0163] 51. Interface module 500 receives the door three times obstacle signal sent by main control board B, and transmits the three times obstacle signal to 485 communication module 800;

[0164] 52. 485 communication module 800 receives the door three times obstacle signal sent by interface module 500, and transmits the three times obstacle signal to MCU processing module 600;

[0165] 53. MCU processing module 600 receives the door three times obstacle signal sent by 485 communication module 800, processes it, and sends the obstacle opening signal to relay drive module two 310 of three times obstacle module 300;

[0166] 54. The relay drive module two 310 of the third obstacle module 300 receives the obstacle opening door signal sent by the MCU processing module 600, and after the obstacle opening door signal is optically coupled and isolated and the level is converted, the obstacle opening door control signal OBSTACLE(0V) is sent to drive the third obstacle relay two K5 and the third obstacle relay one K6 to act. The normally closed contact of the third obstacle relay two K5 is disconnected, cutting off the transmission line of the bus door closing command signal to the main control board. After the coil of the third obstacle relay one K6 is attracted, the normally closed contact is disconnected, and the normally open contact is closed. When the normally closed contact is disconnected, the transmission line of the bus door opening command signal to the main control board is cut off. After the normally open point of the third obstacle relay one K6 is closed, the local door opening command signal is given, the door body is opened locally after the third obstacle, and the obstacle opening door is completed.

[0167] In the ninth embodiment, the DCU interface board of the subway platform door as described in the first embodiment can realize the half-height safety circuit function. The safety circuit conduction signal is an important signal used by the signal system to determine whether to send a train (the sending condition: all platform doors are closed and locked). The safety circuit is a circuit in series with the closing state travel switch and the locking state travel switch of all platform doors (including sliding doors and emergency doors). When all platform doors are closed and locked, the safety circuit conduction signal is sent. When unexpected situations cause the platform door (sliding door or emergency door) to fail to close, the method of temporarily operating the LCB switch to short-circuit the sliding door travel switch or operating the emergency door bypass switch to short-circuit the emergency door travel switch can be used to conduct the safety circuit and send the safety circuit conduction signal. The specific safety circuit implementation is as follows: Figure 1 、 Figure 10 、 Figure 11

[0168] 61. The bus command module 100 receives the safety circuit signal sent by the PSC cabinet A and transmits it to the input end of the interface module 500;

[0169] 62. The safety circuit signal is output from the output end of the interface module 500 and enters the main control board in series with the sliding door travel switch and the emergency door travel switch arranged in the sliding door interface and the emergency door interface, and then returns to the interface module 500;

[0170] 63. The safety circuit signal is returned to the bus command module 100 through the interface module 500;

[0171] 64. The bus command module 100 outputs the safety circuit output signal to the PSC cabinet. The safety circuit is conducted, confirming that all platform doors (including sliding doors and emergency doors) are in a closed state.

[0172] In the ninth embodiment, the DCU interface board of the subway platform door as described in the first embodiment can realize the half-height safety circuit function. The safety circuit conduction signal is an important signal used by the signal system to determine whether to send a train (the sending condition: all platform doors are closed and locked). The safety circuit is a circuit in series with the closing state travel switch and the locking state travel switch of all platform doors (including sliding doors and emergency doors). When all platform doors are closed and locked, the safety circuit conduction signal is sent. When unexpected situations cause the platform door (sliding door or emergency door) to fail to close, the method of temporarily operating the LCB switch to short-circuit the sliding door travel switch or operating the emergency door bypass switch to short-circuit the emergency door travel switch can be used to conduct the safety circuit and send the safety circuit conduction signal. The specific safety circuit implementation is as follows: Figure 11

[0173] ​​611. The safety circuit input signal VI (positive and negative dual redundant circuit) enters the interface board as described in the present invention through terminals 17, 18 of terminal block one X11 of the bus command module 100;

[0174] 612. The input signal VI enters the main DCU slide gate travel switch 1 through terminals 2, 4 of terminal block three X18 of the interface module 500;

[0175] 613. The main DCU slide gate travel switch 1 normally closed contact returns to terminals 6, 8 of terminal block three X18 of the interface module 500 to obtain the main DCU slide gate safety circuit output signal V2;

[0176] 614. The main DCU slide gate safety circuit output signal V2 enters the slave DCU slide gate travel switch 2 through terminals 2, 4 of terminal block four X19 of the interface module 500;

[0177] 615. The slave DCU slide gate travel switch 2 normally closed contact returns to terminals 6, 8 of terminal block four X19 of the interface module 500 to obtain the slide gate safety circuit output signal V3;

[0178] 616. The slide gate safety circuit output signal V3 enters through terminals 5, 6 of terminal block two X12 of the bus command module 100, 11, 12 output enters terminals 19, 20 of terminal block one X11 to obtain the emergency gate safety circuit input signal V4;

[0179] 617. The emergency gate safety circuit input signal V4 enters the main DCU emergency gate travel switch 3 through terminals 10, 12 of terminal block three X18 of the interface module 500, the main DCU emergency gate travel switch normally closed contact returns to terminals 14, 16 of terminal block three X18 of the interface module 500 to obtain the main DCU emergency gate safety circuit output signal V5;

[0180] 618. The main DCU emergency gate safety circuit output signal V5 enters the slave DCU emergency gate travel switch 4 through terminals 10, 12 of terminal block three X18 of the interface module 500, the slave DCU emergency gate travel switch returns to terminals 14, 16 of terminal block three X18 of the interface module 500 to obtain the safety circuit output signal V6;

[0181] 619. The safety circuit output signal V6 enters the PSC cabinet through terminals 7, 8 of terminal block two X12 of the bus command module 100.

[0182] Referring to Figure 11When a platform door fails, in order to avoid affecting the safety circuit conduction, the LCB switch 10 is connected between the safety circuit input signal V1 and the sliding door safety circuit output signal V3 through the LCB interface module 400. When a sliding door fails, the on-site maintenance personnel operate the LCB switch to the manual state (manual open, manual close), and manually opening the door will not affect the safety circuit state of the platform on this side, that is, the safety circuit of the faulty door is short-circuited at this time.

[0183] When an emergency door fails, in order to avoid affecting the safety circuit conduction, the EED bypass switch 20 is connected between the emergency door safety circuit input signal V4 and the bus safety circuit output signal V6 through the EED bypass interface module 1000. When an emergency door fails, the on-site maintenance personnel operate the EED bypass switch to the bypass state, and will not affect the safety circuit state of the platform on this side, that is, the safety circuit of the faulty emergency door is short-circuited at this time.

[0184] The above description is only illustrative and not limiting, and the present application aims to provide an interface board which has the functions of the interface board itself, and also has the functions of a network port board, alignment isolation, three times obstacle, local IP address change, PSC can monitor the platform door state in real time, etc. Those skilled in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined by the claims, for example, applied to other rail transit platform door control systems, such as high-speed rail, or urban overground rail transit, but all will fall within the protection scope of the present application.

Claims

1. A subway platform door DCU interface board, which is arranged between a subway PSC cabinet (A) and a subway door master control board (B), characterized in that: It includes: Bus command module (100), bit isolation module (200), three obstacles module (300), LCB interface module (400), interface module (500); The bus command module (100): connected with PSC cabinet (A), and connected with bit isolation module (200), three obstacles module (300); for receiving the opening and closing door command signal from PSC cabinet (A), and sending the opening door command signal to bit isolation module (200), and sending the closing door command signal to three obstacles module (300); The bit isolation module (200) is connected with the three obstacles module (300), and is used for receiving the opening door command signal sent by the bus command module (100) and outputting the opening door command signal to the three obstacles module (300); The three obstacles module (300) is connected with the LCB interface module (400), and is used for receiving the opening door command signal sent by the bit isolation module (200) and transmitting to the LCB interface module (400); the three obstacles module (300) is connected with the interface module (500), and is used for receiving the closing door command signal sent by the bus command module (100) and transmitting to the interface module (500); The LCB interface module (400) is directly connected with the peripheral LCB switch (10), and is used for collecting the state signal of the LCB switch (10); and is connected with the interface module (500); the LCB switch is "automatic bit", and when the automatic signal is collected by the LCB interface module (400), the opening door command signal sent by the three obstacles module (300) is received and sent to the interface module (500); The interface module (500) is used for receiving the opening door command signal sent by the LCB interface module (400) and sending the opening door command signal to the main control board (B), and is used for receiving the closing door command signal sent by the three obstacles module (300) and sending the closing door command signal to the main control board (B); The opening door command signal enters the bit isolation module (200), and is output to the three obstacles module (300) through the normally closed contact of the bit isolation relay (K7); the opening door command signal enters the three obstacles module (300), and is transmitted to the LCB interface module (400) through the normally closed contact of the three obstacles relay one (K6) of the three obstacles module (300); the opening door command signal enters the LCB interface module (400), and is sent to the interface module (500) after the normally open contact of the LCB relay three (K4) of the LCB interface module (400) is closed; the closing door command signal enters the three obstacles module (300), and is transmitted to the interface module (500) through the normally closed contact of the three obstacles relay two (K5). It further includes MCU processing module (600) and network interface module (700); the MCU processing module (600) is connected with alignment isolation module (200), for sending alignment isolation signal to alignment isolation module (200);Network interface module (700) is arranged between PSC cabinet (A) and MCU processing module (600), for data exchange between them; The network interface module (700) is used for receiving the vehicle door failure signal sent by the upper computer in the PSC cabinet (A), and transmitting the vehicle door failure signal to the MCU processing module (600); The MCU processing module (600) is used for receiving the vehicle door failure signal transmitted by the network interface module (700), and sending alignment isolation signal to the alignment isolation module (200) after processing; The alignment isolation module (200) is used for receiving the alignment isolation signal sent by the MCU processing module (600), and cutting off the door opening command signal sent by the bus command module (100) after receiving the signal, so as to not execute the door opening and closing action; It further includes a 485 communication module (800), which is arranged between the MCU processing module (600) and the interface module (500), and is used for communication between the interface module (500) and the MCU processing module (600);The MCU processing module (600) is connected with the three-time obstacle module (300), and is used for sending obstacle opening signal to the three-time obstacle module (300); The interface module (500) is used for receiving the three-time obstacle signal of the door body sent by the main control board (B), and transmitting the three-time obstacle signal to the 485 communication module (800); The 485 communication module (800) receives the three-time obstacle signal of the door body sent by the interface module (500), and transmits the three-time obstacle signal to the MCU processing module (600); The MCU processing module (600) receives the three-time obstacle signal of the door body, and sends obstacle opening signal to the three-time obstacle module (300) after processing;After receiving the obstacle opening signal sent by the MCU processing module (600), the three-time obstacle module (300) cuts off the transmission line of the door opening and closing command signal from the bus command module (100) to the main control board (B);Local door opening command signal is given separately, and two platform doors are opened simultaneously after three-time obstacle.

2. The metro platform gate DCU interface board of claim 1, wherein, The alignment isolation module (200) includes a relay drive module one (210) and an alignment isolation relay (K7);The bus command module (100) is connected with the three-time obstacle module (300) through the alignment isolation relay (K7);The MCU processing module (600) is connected with the relay drive module one (210), and the relay drive module one (210) is used for controlling the action of the alignment isolation relay (K7); The relay drive module one (210) receives the alignment isolation signal sent by the MCU processing module (600), sends the alignment isolation control signal (ISOLATE), controls the action of the alignment isolation relay (K7), and the normally closed contact of the alignment isolation relay (K7) is disconnected, so that the opening command signal sent by the bus command module (100) is cut off.

3. The metro platform gate DCU interface board of claim 1, wherein, The MCU processing module (600) is connected with the LCB interface module (400); The LCB interface module (400) is directly connected with the peripheral LCB switch (10), and is used for receiving and processing the state signal of the LCB switch (10). When the LCB switch (10) is in the "automatic" position, the opening command signal from the three-time obstacle module (300) to the interface module (500) is controlled to be conducted. When the LCB switch (10) is in the "manual opening" position, the LCB interface module (400) cuts off the transmission of the opening command signal from the three-time obstacle module (300) to the interface module (500), sends a local opening signal to the interface module (500), and sends a manual control state signal to the interface module (500). When the LCB switch (10) is in the "manual closing" position, the LCB interface module (400) cuts off the opening command signal from the three-time obstacle module (300), and sends a manual control state signal to the interface module (500). The MCU processing module (600) is used for receiving the state signal of the LCB switch (10) sent by the LCB interface module (400). When the LCB switch (10) is in the non-manual opening, non-manual closing, and non-automatic "isolation" state, the LCB interface module (400) sends an isolation state signal to the MCU processing module (600). The MCU processing module (600) converts the isolation state signal into a digital signal and uploads it to the upper computer of the PSC cabinet (A) through the network port module (700).

4. The metro platform gate DCU interface board of claim 3, wherein, The LCB interface module (400) comprises a DI acquisition circuit (420), an LCB switch interface terminal (410), and a relay unit (430). The LCB switch interface terminal (410) is connected with the LCB switch (10) and is used for receiving the state signal of the LCB switch (10). The DI acquisition circuit (420) is connected between the MCU processing module (600) and the LCB switch interface terminal (410), and is used for receiving the state signal of the LCB switch (10) and sending it to the MCU processing module (600). The LCB switch interface terminal (410) is connected with the relay unit (430), and is used for controlling the action of the relay unit (430) according to the state signal of the LCB switch (10).

5. The metro platform door DCU interface board of claim 4, wherein, The relay unit (430) comprises LCB relay one (K1), LCB relay two (K3) and LCB relay three (K4); the three-time obstacle module (300) is connected with the interface module (500) through the LCB relay three (K4), one end of the automatic signal (PCC on) output end of the LCB switch interface terminal (410) is connected with the LCB relay two (K3) and the LCB relay three (K4), the other end of the LCB relay two (K3) and the LCB relay three (K4) is connected with 0V voltage; one end of the manual open signal (OPEN) output end of the LCB switch interface terminal (410) is connected with the LCB relay one (K1), the other end of the LCB relay one (K1) is connected with 0V voltage; the power signal (POWEREN) output end of the LCB switch interface terminal (410) is connected with the interface module (500); the power signal (POWEREN) output end of the LCB switch interface terminal (410) is connected with the MCU processing module (600) through the DI acquisition circuit (420); When the LCB switch (10) is in the "automatic position", the LCB interface module (400) receives the automatic signal (PCC on) and the power signal (POWEREN), the automatic signal (PCC on) is 48V, the LCB relay two (K3) and the LCB relay three (K4) are in the power-on state, the normally open contact is closed, the normally closed contact is opened, the door opening signal from the three-time obstacle module (300) is transmitted to the interface module (500) through the normally open contact of the LCB relay three (K4) which is closed; at this time, the power signal (POWEREN) is high level, the DI acquisition circuit (420) acquires the high level state of the power signal (POWEREN), generates and sends the power state signal (POWEN) to the MCU processing module (600), and the MCU processing module (600) determines that the LCB switch is in the "non-isolation" state; When the LCB switch (10) is in the "manual open" position, the LCB interface module (400) receives the manual open signal (OPEN) and the power signal (POWEREN), the manual open signal (OPEN) is 48V, the LCB relay one (K1) is in the power-on state, the normally open contact is closed, the normally closed contact is opened, and the two normally open contacts of the LCB relay one (K1) emit the local door opening signal DOP1IN and DOP2IN to the interface module (500) after being closed; at this time, the power signal (POWEREN) is high level, the DI acquisition circuit (420) acquires the high level state of the power signal (POWEREN), generates and sends the power state signal (POWEN) to the MCU processing module (600), and the MCU processing module (600) determines that the LCB switch is in the "non-isolation" state; When the LCB switch (10) is in the "manual off position, the LCB interface module (400) receives the power signal (POWEREN), the power signal (POWEREN) is high, the DI acquisition circuit (420) acquires the high level state of the power signal (POWEREN), generates and sends the power state signal (POWEN) to the MCU processing module (600), and the MCU processing module (600) determines that the LCB switch is in the "non-isolation" state; the LCB relay two (K3) and the LCB relay three (K4) lose power, the normally open contact is disconnected, the normally closed contact is closed, and the door opening signal from the three obstacle encountering module (300) is cut off by the LCB relay three (K4); the LCB manual control state signal (LCBCON) is transmitted to the interface module (500) through the normally closed contact of the LCB relay two (K3); When the LCB switch (10) is in the "isolation" position, the LCB interface module (400) receives the power signal (POWEREN), at this time, the power signal (POWEREN) is low, the DI acquisition circuit (420) receives the low level power signal (POWEREN), generates and outputs the power state signal (POWEN) to the MCU processing module (600), the MCU processing module (600) determines that the LCB switch is in the "isolation" state, the MCU processing module (600) converts the isolation state signal into a digital signal and uploads it to the upper computer of the PSC cabinet (A) through the network interface module (700); the automatic signal (PCC on) and the manual opening signal (OPEN) received by the LCB interface module (400) are both 0V, the LCB relay one (K1), the LCB relay two (K3) and the LCB relay three (K4) lose power, and the LCB relay three (K4) cuts off the door opening signal from the three obstacle encountering module (300).

6. The metro platform door DCU interface board of claim 1, wherein, The three obstacle encountering module (300) includes a three obstacle encountering relay unit (320) and a relay drive module two (310), the three obstacle encountering relay unit (320) includes a three obstacle encountering relay one (K6) and a three obstacle encountering relay two (K5); the MCU processing module (600) is connected with the relay drive module two (310), the relay drive module two (310) is used for controlling and driving the three obstacle encountering relay one (K6) and the three obstacle encountering relay two (K5) to act, the output end of the relay drive module two (310) is connected with one end of the three obstacle encountering relay one (K6) and the three obstacle encountering relay two (K5), and the other end of the three obstacle encountering relay one (K6) and the three obstacle encountering relay two (K5) is connected with a 48V power supply; the normally open contact of the three obstacle encountering relay one (K6) is connected with the 48V power supply; the alignment isolation module (200) is connected with the LCB interface module (400) through the normally closed contact of the three obstacle encountering relay one (K6), and the bus command module (100) is connected with the interface module (500) through the normally closed contact of the three obstacle encountering relay two (K5); The relay drive module two (310) receives the obstacle opening door signal sent by the MCU processing module (600), and sends out the obstacle opening door control signal OBSTACLE (0V) after the obstacle opening door signal is optically coupled and electrically converted, which is used to drive the third obstacle relay one (K6) and the third obstacle relay two (K5) to act; after the coils of the third obstacle relay one (K6) and the third obstacle relay two (K5) are powered and attracted, the normally closed contact is disconnected, and the transmission line of the door closing command signal from the bus command module (100) to the interface module (500) and the door opening command signal from the alignment isolation module (200) to the LCB interface module (400) is cut off; the normally open contact of the third obstacle relay one (K6) is closed to separately give a local door opening command signal, so that the two platform doors are simultaneously and reversely opened after three obstacles.

7. The DCU interface board of the subway platform door according to claim 5, characterized in that, The interface module (500) receives the hardware handshake signal from the main control board (B) and transmits it to the MCU processing module (600) through the 485 communication module (800); When the hardware handshake signal is at a high level, the main control board (B) is ready for communication, at this time, the MCU processing module (600) sends a DCU state data query command to the main control board (B) through the 485 communication module (800) and the interface module (500) at a fixed time; The main control board (B) returns the DCU state data to the interface module (500), and the interface module (500) is used for receiving the queried data sent by the main control board (B) and transmitting the queried data to the MCU processing module (600) through the 485 communication module (800); The MCU processing module (600) stores the queried data sent by the main control board (B) in the internal FLASH after processing; The network port module (700) is used for receiving the data query command sent by the PSC cabinet (A) in the form of a network cable and transmitting the data query command to the MCU processing module (600); The MCU processing module (600) is used for receiving the data query command sent by the PSC cabinet in the form of a network cable through the network port module (700), and uploading the data stored in the internal FLASH to the PSC cabinet (A) in the form of a network cable through the network port module (700), so as to realize the real-time state monitoring of the door body by the PSC.

8. The metro platform gate DCU interface board of claim 1, wherein, It further comprises an EED bypass module (1000) connected with the MCU processing module (600); The EED bypass module (1000) is used for collecting the EED bypass state signal (EED PL) of the EED bypass switch (20) in the emergency door bypass box and uploading the EED bypass state signal (EED PL) to the MCU processing module (600); The MCU processing module (600) is configured to receive an EED bypass state signal (EED PL) of the bypass switch (20) collected by the EED bypass module (1000) and upload the EED bypass state signal (EED PL) to the PSC cabinet (A) through the network port module (700) in the form of a network cable.

9. The DCU interface board of the subway platform screen door according to claim 8, characterized in that, The EED bypass module (1000) comprises a wiring terminal (1010) and a collection circuit (1020); the wiring terminal (1010) is connected with the peripheral EED bypass switch (20) and is configured to receive an EED bypass state signal (EED PL) of the EED bypass switch (20); and the output end of the wiring terminal (1010) is connected with the input end of the collection circuit (1020), and the collection circuit (1020) is connected with the MCU processing module (600). When the EED bypass switch (20) is in the "bypass" position, the wiring terminal (1010) outputs an EED bypass signal (EED_PL) 0V to the collection circuit (1020), and the EED bypass signal (EED_PL) is processed by the collection circuit (1020) and then outputs a bypass output signal (EED-PL) 0V to the MCU processing module (600); when the EED bypass switch (20) is in the "normal" position, the collection circuit (1020) outputs a normal signal 3.3V to the MCU processing module (600).

10. The metro platform door DCU interface board of claim 1, wherein, The DCU interface board further comprises a DIP switch (900) connected with the MCU processing module (600) and configured to set position information of the DIP switch (900). The MCU processing module (600) is configured to collect the position information of the DIP switch (900) representing the platform screen door number in a time manner, and send an IP address initialization command to the network port module (700) when the position information of the DIP switch (900) changes; the network port module (700) is configured to receive the IP address initialization command sent by the MCU processing module (600), and set the IP address as the position information of the DIP switch (900).

11. The metro platform screen door DCU interface board of any one of claims 3-5, wherein, The DCU interface board further comprises an isolation and voltage reduction module (1100) configured to supply power to the MCU processing module (600), the network port module (700) and the 485 communication module (800).

12. The metro platform screen door DCU interface board of any one of claims 1-5, wherein, The bus command module (100) is configured to receive a safety circuit signal sent by the PSC cabinet (A), and the safety circuit signal is connected in series with a travel switch of a closing state of the sliding door and a travel switch of a locking state of the emergency door after passing through the interface module (500) and finally returns to the PSC cabinet (A) through the bus command module (100).

13. The DCU interface board of the subway platform screen door according to claim 12, characterized in that, The bus command module (100) receives the safety circuit input signal (V1) sent by the PSC cabinet (A), which enters the main sliding door travel switch (1) through the interface module (500); then returns to the interface module (500) through the normally closed contact of the main sliding door travel switch (1), and obtains the main sliding door safety circuit output signal (V2); The main sliding door safety circuit output signal (V2) enters the slave sliding door travel switch (2) through the interface module (500); then returns to the interface module (500) through the normally closed contact of the slave sliding door travel switch (2), and obtains the sliding door safety circuit output signal (V3); After the sliding door safety circuit output signal (V3) passes through the bus command module (100), the emergency door safety circuit input signal (V4) is obtained; the emergency door safety circuit input signal (V4) enters the main emergency door travel switch (3) through the interface module (500), and then returns to the interface module (500) through the normally closed contact of the main emergency door travel switch, and obtains the main emergency door safety circuit output signal (V5); The main emergency door safety circuit output signal (V5) enters the slave emergency door travel switch (4) through the interface module (500), and then returns to the interface module (500) through the slave emergency door travel switch (4), and obtains the safety circuit output signal (V6); The safety circuit output signal (V6) enters the PSC cabinet (A) through the bus command module (100).

14. The metro platform screen door DCU interface board of claim 13, wherein, The LCB switch (10) is connected between the safety circuit input signal (V1) and the sliding door safety circuit output signal (V3), when the LCB switch (10) is rotated to the "manual open" or "manual close" position, the safety circuit is short-circuited; The EED bypass switch (20) is connected between the emergency door safety circuit input signal (V4) and the safety circuit output signal (V6), when the EED bypass switch (20) is rotated to the bypass state, the fault emergency door safety circuit is short-circuited. ​

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