Vehicle door control system and rail train

Abstract

The embodiment of the invention provides a vehicle door control system and a rail train, and the vehicle door control system comprises a vehicle door state detection device; each door in the train is provided with a door state detection device; when the vehicle door is normally closed, an effective vehicle door closing output signal is generated, and the vehicle door closing output signal is accessed to the safety loop; a gating station; a door control station is arranged beside at least one vehicle door and used for opening or closing the corresponding vehicle door. When the door control station is activated, the corresponding vehicle door can be opened through the door control station, and the vehicle door closing signal of the corresponding vehicle door is bypassed, so that the opened vehicle door does not affect a train safety loop. According to the vehicle door control system and the rail train provided by the embodiment of the invention, the vehicle door opened by the door control station does not influence a safety loop, and the other vehicle door states are still interlocked with the traction, so that a trainman can open the vehicle door to observe surrounding conditions in the running process of the train, and the running safety of the train is improved.

Description

Technical Field

[0001] The present application relates to rail train technology, and in particular to a door control system and a rail train. Background Art

[0002] The operation safety of rail trains is extremely important. In order to ensure the safety of passengers, the train is allowed to be towed only after all doors are closed and locked and a safety loop is established. In addition, after the safety loop is established, the "all doors closed indicator light" in the driver's cab lights up to remind the driver.

[0003] In the related art, all doors of the train are equipped with door lock switches, which are connected in series to the safety loop. If a door fails, the safety loop cannot be established and the train cannot run normally. In some countries or regions, crew members are required to open the doors when the train is running at a low speed in order to observe the train and the surrounding environment. This requires that the train can be towed even when some doors are open, and other unopened doors are still interlocked with the towing to ensure driving safety. Trains with common safety loops cannot meet this requirement. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, a door control system and a rail train are provided in an embodiment of the present application.

[0005] According to a first aspect of an embodiment of the present application, a vehicle door control system is provided, comprising:

[0006] Door status detection device: Each door in the train is equipped with a door status detection device; when the door is closed normally, it generates an effective door closing signal and is connected to the train safety loop;

[0007] A door control station is provided next to at least one door, and is used to open or close the corresponding door; when the door control station is activated, the corresponding door can be opened through the door control station and the door closing signal of the corresponding door can be bypassed, so that the opened door does not affect the train safety loop.

[0008] According to a second aspect of an embodiment of the present application, a rail train is provided, comprising: a door control system as described above.

[0009] The technical solution provided in the embodiment of the present application adopts a door status detection device and a gate control station, wherein each door in the train is provided with a door status detection device; when the door is normally closed, an effective door closing signal is generated and connected to the train safety loop; a gate control station is provided next to at least one door, and the gate control station is used to open or close the corresponding door; when the gate control station is activated, the corresponding door can be opened through the gate control station and the door closing signal of the corresponding door can be bypassed, so that the opened door does not affect the train safety loop, so that the crew can open the door to observe the surrounding situation when leaving the platform normally at a low speed, thereby improving the safety of train driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0011] Figure 1 A schematic diagram of the structure of the door layout provided in an embodiment of the present application;

[0012] Figure 2 A schematic diagram of the structure of an implementation of a door control system provided in an embodiment of the present application;

[0013] Figure 3 A schematic structural diagram of another implementation of a door control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0014] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0015] This embodiment provides a door control system that can be applied to rail trains. When the train is traveling at a low speed, the local doors can be opened through a door control station, so that the crew can observe the surrounding environment, thereby improving driving safety.

[0016] The door control system provided in this embodiment includes: a door state detection device and a door control station. The rail train includes multiple carriages, and each door in each carriage is provided with a door state detection device for detecting whether the door is closed normally. When the door is closed normally, the door state detection device generates a valid door closing signal, and the door closing signal is connected to the safety loop.

[0017] Specifically, when a door is closed normally, the output signal generated by the door state detection device of the door is a valid signal; when the door is not closed normally, the door is faulty or the door state detection device is faulty, the output signal generated by the door state detection device of the door is an invalid signal. When the output signals generated by the door state detection devices corresponding to all doors are valid signals, a safety loop is established, allowing the train to be towed.

[0018] One or more door control stations can be set up in a carriage, so that the crew can open the door individually. The opened door will not affect the conduction state of the door safety loop. The door control station set up next to the door can be equipped with buttons, knobs and key switches. The crew turns the special key to activate the door control station, operates the button or knob to open the door, and the opened door also generates a valid door opening signal. A mechanical lock can also be set up. The crew uses a special key to open the mechanical lock and then activates the door control station to conduct the circuit of the door control station, and the opened door also generates a valid door opening signal.

[0019] In actual application, when the door status detection devices corresponding to all doors output valid door closing signals, the safety loop is established and the train is allowed to be towed. During the train running, the doors opened by the activated door control station bypass the opening and closing states of the corresponding doors, so as not to affect the contact state of the loop relay of this car.

[0020] During low-speed driving, the crew can open the local door through the door control station to check the environment. The opened door does not affect the safety loop and the train can still run at low speed. For example, the door control station can be activated and the door can be opened by pressing a button, turning a knob or inserting a special key into the lock.

[0021] The technical solution provided in this embodiment adopts a door status detection device and a door control station, wherein each door in the train is provided with a door status detection device; when the door is normally closed, an effective door closing signal is generated and connected to the train safety loop; a door control station is provided next to at least one door, and the door control station is used to open or close the corresponding door; when the door control station is activated, the corresponding door can be opened through the door control station and the door closing signal of the corresponding door can be bypassed, so that the opened door does not affect the train safety loop, so that the crew can open the door to observe the surrounding situation when leaving the platform at a normal low speed, thereby improving the safety of train travel.

[0022] On the basis of the above technical solution, in order to ensure driving safety, manual opening of doors is not allowed during high-speed travel of the train. Specifically, the gate control station is connected to the zero-speed train line. During the high-speed travel of the train, the zero-speed train line has no signal, and the gate control station cannot be activated even with a key. The door cannot be opened by operating the gate control station button, knob or mechanical lock next to the door. In addition, when the speed of the train exceeds the set value and enters the high-speed travel state, if a door is detected to be open, the main door controller in the train will control the open door to close automatically.

[0023] On the basis of the above technical solution, the door status detection device includes: a door closing detection switch and a door locking detection switch. The left and right doors are fully closed and locked. The auxiliary contacts of the relay are connected to the safety loop. The door closing detection switch is used to detect whether the door is closed normally. When the door is closed normally, the limit switch contact is closed. The door locking detection switch is used to detect whether the door is locked normally. When the door is locked normally, the door locking detection switch contact is closed.

[0024] The use of a door closing detection switch to detect door closing and a door locking detection switch to detect door locking can improve safety. The vehicle can only travel at high speeds when the doors are normally closed and locked.

[0025] Furthermore, the door control station is provided with a local door opening button, a local door closing button, a centralized door opening button, a centralized door closing button, a door status indicator light and a door control station activation indicator light, etc. The crew operates the local door opening button to open the door and operates the local door closing button to close the door.

[0026] In addition, the door control station device also includes: a key switch, which is used to activate the door control station with a special key. The attendant must first activate the door control station with a special key before operating the button to open the door to improve driving safety. The special key can only be equipped by the attendant to prevent ordinary passengers from opening the door by mistake. The buttons, knobs, and mechanical locks operated by the attendant can trigger the corresponding control functions of the door control station, such as turning the door control station on or off, and performing corresponding actions, as input signals for the door control station device.

[0027] Furthermore, a main door controller and a local door controller are used, and the main door controller and the local door controller are connected. The local door controller is also connected to a door drive motor so that the door drive motor drives the door to open and close. For a single-door solution, a door is set in the door area; for a double-door solution, a pair of doors, i.e., two doors, are set in the door area, and the two doors move toward each other to close the door, and the two doors move away from each other to open the door. A local door controller can be set corresponding to a pair of doors, or a local door controller can be set for each door. The input signal of the gate control station and the corresponding train line signal are connected to the main door controller.

[0028] Based on the above technical solution, this embodiment provides a specific implementation method, such as Figure 1 and Figure 2 As shown, it is assumed that two double doors are set on each side of a carriage, with a total of 8 doors, and the two doors are a pair and open and close synchronously. Figure 1 Among them, door 1 and door 2 are a pair, door 3 and door 4 are a pair, door 5 and door 6 are a pair, and door 7 and door 8 are a pair. Each door is provided with a set of door state detection device.

[0029] Assume that the door control station device is set at the B end of the carriage, one on each side, respectively set at the positions of door 3, door 4, door 5, and door 6. During low-speed operation, the crew can open door 3, door 4, or door 5, and door 6 separately. The other doors are closed. Of course, this embodiment is only an example, and it is also possible that only one pair of doors on each side can be opened separately, or all four pairs of doors can be opened separately.

[0030] The carriage is equipped with a main door controller, which is connected to the traction interlock, zero-speed train line, high-speed train line, and other related train lines. A door control station device is set near doors 3, 4, 5, and 6. The door control station device includes a key switch, a control module, an indicator light, and a relay. Among them, the control module is connected to the main door controller and related train lines. After activating the door control station key switch S1, the local door opening button of the door control station (left) can be used to open doors 3 and 4. After activating the door control station key switch S2, the local door opening button of the door control station (right) can be used to open doors 5 and 6.

[0031] by Figure 2 For example, 8 local door controllers are set, and each door corresponds to 1 local door controller. The local door controllers are connected to the main door controller and the door drive motor M respectively.

[0032] The door control station device includes: a key switch, a control module and an activation relay; the key switch is connected to the coil of the activation relay, and the normally open contacts of the activation relay are connected in parallel with the door closing detection switch and the door locking detection switch to realize the bypass function of the local door opening state.

[0033] Specifically, Figure 2There are two door control station activation relays, K5 and K6. The coil of relay K5 is connected between the door control station key switch S2 and the negative line of the train. The normally open contacts 1 and 2 of relay K5 are connected in parallel with the door closing detection switch of doors 3 and 4 and the auxiliary contacts 1 and 2 of the door locking detection switch relay K3. Then the auxiliary contacts of the left door closing and locking relay K1 and the right door closing and locking relay K2 are connected to the safety loop. When the crew opens doors 3 and 4, the door control station activation switch S2 is closed, the coil of relay K5 is energized, and its normally open contact closes to bypass the auxiliary contacts of the door closing and locking relay K3 of doors 3 and 4. It is equivalent to bypassing the door closing detection switch and door locking detection switch of doors 3 and 4. Regardless of whether doors 3 and 4 are open or closed, the coil of the right door closing and locking relay K2 is not affected, so that the safety loop is established. At the same time, the opening and closing status of doors 3 and 4 can be monitored by the local door controllers of doors 3 and 4.

[0034] The coil of the gate station activation relay K6 is connected between the gate station activation key switch S1 and the negative line of the train. The normally open contact of relay K6 is connected in parallel with the auxiliary contacts of the door closing detection switch and door locking detection switch relay K4 of doors 5 and 6. When the crew opens doors 5 and 6, the gate station activation switch S1 is closed, the coil of relay K6 is energized, the normally open contact of K6 is closed, and the auxiliary contacts of the door closing and locking relay K4 of doors 5 and 6 are bypassed. This is equivalent to bypassing the door closing detection switch and door locking detection switch of doors 5 and 6. Regardless of whether the state of doors 5 and 6 is open or closed, it does not affect the conduction of the coil of the left door closing and locking relay K1, so that the safety loop is established. At the same time, the opening and closing states of doors 5 and 6 can be monitored by the local door controllers of doors 5 and 6.

[0035] If other doors are opened due to a fault, or the closed or locked limit switches are disconnected due to a fault, the door safety loop will be disconnected, and the status of the remaining doors will still be interlocked with the traction.

[0036] Furthermore, the door control circuit includes: a door detection relay and a loop relay. The door closing detection switch and the door locking detection switch corresponding to the door with the door control station are connected in series and then connected to the coil of the door detection relay. The contacts of the door detection relay are connected in series with the door closing detection switch and the door locking detection switch corresponding to the door without the door control station switch, and are connected to the coil of the loop relay, and the contacts of the loop relay are connected to the safety loop; the normally open contacts of the door control station activation relay are connected in parallel with the contacts of the door detection relay.

[0037] Figure 2The circuit includes door detection relays K3 and K4, and loop relays K1 and K2. The contacts of the door closing detection switch S31 for door 3, the door locking detection switch S32 for door 3, the door closing detection switch S41 for door 4, and the door locking detection switch S42 for door 4 are connected in series and then connected to the coil of the door detection relay K3.

[0038] The contacts of the 5-door door closing detection switch S51, the 5-door door locking detection switch S52, the 6-door door closing detection switch S61, and the 6-door door locking detection switch S62 are connected in series and then connected to the coil of the door detection relay K4.

[0039] The contacts of the door closing detection switch S11 of door 1, the door locking detection switch S12 of door 1, the door closing detection switch S21 of door 2, and the door locking detection switch S22 of door 2 are connected in series, and then connected in series with the contacts 1 and 2 of the door detection relay K3, and then connected in series with the coil of the loop relay K2. The contacts of the loop relay K2 are connected in series to the first train line to form a safety loop. The normally open contacts of the door control station activation relay K5 are connected in parallel with the contacts of the door detection relay K3.

[0040] The contacts of the door closing detection switch S71 for 7 doors, the door locking detection switch S72 for 7 doors, the door closing detection switch S81 for 8 doors, and the door locking detection switch S82 for 8 doors are connected in series, and then connected in series with the contacts 1 and 2 of the door detection relay K4, and then connected in series with the coil of the loop relay K1. The contacts of the loop relay K1 are connected in series to the first train line to form a safety loop. The normally open contact of the door control station activation relay K6 is connected in parallel with the contacts 1 and 2 of the door detection relay K4.

[0041] Taking door 3 as an example, when door 3 is closed, the contact of door closing detection switch S31 is closed; when door 3 is locked, the contact of door locking detection switch S32 is closed, and the other doors are similarly configured.

[0042] When door 1 is closed and locked, door 2 is closed and locked, door 3 is closed and locked, and door 4 is closed and locked, the contacts of S31, S32, S41, S42, S11, S12, S21, and S22 are all closed, the coil of K3 is energized, and contacts 1 and 2 of K3 are closed, so that the coil of loop relay K2 is energized, and the contacts of loop relay K2 are closed, generating an effective door closing output signal to connect to the safety loop. When the crew activates the door control station and opens doors 3 and 4, the contacts of limit switches S31, S32, S41, and S42 are disconnected, the coil of K3 is de-energized, and contacts 1 and 2 of K3 are opened. The door control station activates the key switch S2 to close, and the coil of relay K5 is energized and its normally open contact is closed, bypassing contacts 1 and 2 of K3, that is, bypassing the door closing detection switch and door locking detection switch of doors 3 and 4, so that the safety loop is established.

[0043] When door 5 is closed and locked, door 6 is closed and locked, door 7 is closed and locked, and door 8 is closed and locked, the contacts of S51, S52, S61, S62, S71, S72, S81, and S82 are all closed, the coil of K4 is energized, and contacts 1 and 2 of K4 are closed, so that the coil of loop relay K1 is energized, and the contacts of loop relay K1 are closed, generating an effective door closing output signal to connect to the safety loop. When the crew wants to open doors 5 and 6 through the door control station, they first turn the key to activate key switch S1. At this time, the S1 switch is closed, the coil of relay K6 is energized, and its normally open contacts are closed, bypassing the contacts of K4, that is, bypassing the door closing detection switches and door locking detection switches of doors 5 and 6. Regardless of whether doors 5 and 6 are open or closed, the safety loop is established.

[0044] The manual opening and closing of the above doors and the series relationship between the door switches can be adjusted according to actual conditions and are not limited to Figure 2 The scheme shown.

[0045] Based on the above scheme, the door control system consists of a door safety loop, a door control station, switches and relays, a train line and a door controller.

[0046] Among them, the positive pole of the safety loop is powered by the leading car or the tail car, through the first train line (traction interlocking train line) through the auxiliary contacts 1 and 2 of the loop relays K1 and K2 of each carriage with all the doors fully closed and locked, and then through the second train line back to the negative pole of the door safety loop of the locomotive or the leading car to form a closed loop.

[0047] After the door safety loop is established, all door closing indicators in the driver's cab and all door closing indicators L1 and L2 on the door control station (left) and (right) light up to remind the driver of the door status.

[0048] A door control station is set up next to the doors that need to be opened during the low-speed train operation. The control module of the door control station integrates special centralized control and local door opening and closing buttons and related indicator lights. A special key is required to activate the door control station before the buttons can be operated.

[0049] If other doors are opened due to a fault, or the closed or locked limit switches are disconnected due to a fault, the door safety loop will be disconnected, and the status of the remaining doors will still be interlocked with the traction.

[0050] The power supply of relays K1 and K2 is supplied by the train line, and they can still work normally when the low-voltage power supply of the local train fails.

[0051] The traction interlock (also called the door fully closed train line), zero-speed train line, high-speed train line and other related train lines (opening and closing doors, door button enable, etc.) are connected to the input port of the main door controller to provide judgment conditions for the main door controller. The train speed signal is given by the train speed sensor, and the low-speed train line signal is transmitted to the door controller of each car through the zero-speed train line. The setting value is generally ≤5km / h, 3mph, etc. The high-speed train line is usually 10km / h, 15km / h or 20mph, etc.

[0052] Each train is equipped with a master door controller, which controls the local door controller of each door drive mechanism position, and then controls the motor to open and close the door. When doors 5 and 6 are open, another set of auxiliary contacts of the closed and locked limit switches of doors 5 and 6 will be connected to the input port of the door controller, and the switch status of doors 5 and 6 will be monitored by the door controller, and the status of doors 5 and 6 will be fed back to the driver's display screen, so there will be no misjudgment.

[0053] If the train exceeds the set speed (the high-speed train line value can be changed as needed), and the crew or driver has not manually closed doors 5 and 6, the main door controller will control the open doors 5 and 6 to automatically close after comprehensive judgment based on the zero-speed train line, high-speed train line and other relevant signals to ensure high-speed driving safety.

[0054] Based on the above technical solution, this embodiment provides another implementation method: Figure 3 As shown in the figure, a carriage is equipped with 8 single-opening doors, each of which can be opened individually through a door control station. Therefore, a door control station device and a door controller are installed at each door. Due to the large number of door controllers and door control station devices, the left and right doors are wired separately through the train control panel and participate in certain logical operations before sending signals to each door controller. The door key is no longer activated. Figure 2 The door control station in the door activates the relay, but turns the key and closes the related switch auxiliary contacts at the same time.

[0055] The door control station corresponding to each door is connected to the corresponding door controller and train control panel. Figure 3 In the figure, the doors on the left and right sides of the carriage are set separately, and the corresponding devices of doors 1, 2, 3, and 4 are all connected to the train control board (right), and the corresponding devices of doors 5, 6, 7, and 8 are all connected to the train control board (left).

[0056] Specifically, the door control circuit includes: a loop relay. The contact of the door closing detection switch is connected to the coil of the loop relay, and the contact of the loop relay is connected to the safety loop; the contact of the door locking detection switch is connected to the coil of another loop relay, and the contact of the loop relay is connected to the safety loop; the normally open contact of the door control station activation key is connected in parallel with the contact of the door closing detection switch and the contact of the door locking detection switch.

[0057] For example: By default, all side doors are in the closed state. The contact of the door closing detection switch S51 of the 5-door is connected to the coil of the loop relay K3, and the contacts 1 and 2 of the loop relay K3 are connected to the safety loop. The contact of the door locking detection switch S52 of the 5-door is connected to the coil of the loop relay K4, and the contacts 1 and 2 of the loop relay K4 are connected to the safety loop. The contacts 3 and 4 of the key switch S5 activated by the door control station are connected in parallel with S51, and the contacts 5 and 6 of the key switch S5 activated by the door control station are connected in parallel with S52.

[0058] When the 5 doors are closed and locked, the coils of the loop relays K3 and K4 are energized, the contacts of the loop relays K3 and K4 are closed, and an effective door closing output signal is generated and connected to the safety loop. When the 5 doors need to be opened separately through the door control station, the door control station of the 5 doors is activated, the contacts 1 and 2 of the key switch S5 are closed, and the door control station of the 5 doors is energized and can be operated. At the same time, the contacts 3 and 4 of the key switch S5 are closed, bypassing the door closing state of the 5 doors, and the contacts 5 and 6 of the key switch S5 are closed, bypassing the door locking state of the 5 doors. At this time, the switch contacts S51 and S52 of the 5 doors are open, but it does not affect the conduction state of the coils of the loop relays K3 and K4 and the establishment of the safety loop.

[0059] On the basis of the above technical solution, the contacts of the door lock detection switches of at least two pairs of doors are connected in series, and then connected to the coil of the loop relay accordingly; the contacts of the door lock detection switches of at least two pairs of doors are connected in series, and then connected to the coil of the loop relay accordingly. Each door is provided with a door control station, and the normally open contacts of the door control station activation key switch are respectively connected in parallel with the contacts of the door closing detection switch and the contacts of the door lock detection switch of the corresponding door.

[0060] Specifically, the contacts of the door closing detection switch S51 for door 5, the contacts of the door closing detection switch S61 for door 6, the contacts of the door closing detection switch S71 for door 7, and the contacts of the door closing detection switch S81 for door 8 are connected in series and then connected to the coil of the loop relay K3. Contacts 1 and 2 of the loop relay K3 are connected to the safety loop.

[0061] The contacts of the door lock detection switch S52 for door 5, the contacts of the door lock detection switch S62 for door 6, the contacts of the door lock detection switch S72 for door 7, and the contacts of the door lock detection switch S82 for door 8 are connected in series and then connected to the coil of the loop relay K4. Contacts 1 and 2 of the loop relay K4 are connected to the safety loop.

[0062] Contacts 3 and 4 of the door activation key switch S5 of the door control station are connected in parallel with the contact of the door closing detection switch S51 of the 5th door, and contacts 5 and 6 of the door activation key switch S5 of the door control station are connected in parallel with the contact of the door locking detection switch S52 of the 5th door.

[0063] Contacts 3 and 4 of the door control station's activation key switch S6 are connected in parallel with the contact of the door closing detection switch S61 of the 6th door, and contacts 5 and 6 of the door control station's activation key switch S6 are connected in parallel with the contact of the door locking detection switch S62 of the 6th door.

[0064] Contacts 3 and 4 of the door control station's activation key switch S7 are connected in parallel with the contact of the door closing detection switch S71 of door 7, and contacts 5 and 6 of the door control station's activation key switch S7 are connected in parallel with the contact of the door locking detection switch S72 of door 7.

[0065] Contacts 3 and 4 of the door control station's activation key switch S8 are connected in parallel with the contact of the 8-door door closing detection switch S81, and contacts 5 and 6 of the door control station's activation key switch S8 are connected in parallel with the contact of the 8-door door locking detection switch S82.

[0066] The above scheme connects the corresponding door closing and locking limit switches of the four doors on each side in series, and then uses a loop relay to reduce the number of limit switch contacts in the door safety loop, thereby reducing the complexity of wiring and reducing possible limit switch failure points, thereby improving maintenance efficiency.

[0067] Similarly, the contacts of the door closing detection switch S11 of door 1, the contacts of the door closing detection switch S21 of door 2, the contacts of the door closing detection switch S31 of door 3, and the contacts of the door closing detection switch S41 of door 4 are connected in series and then connected to the coil of the loop relay K1. Contacts 1 and 2 of the loop relay K1 are connected to the safety loop.

[0068] The contacts of the door lock detection switch S12 for door 1, the contacts of the door lock detection switch S22 for door 2, the contacts of the door lock detection switch S32 for door 3, and the contacts of the door lock detection switch S42 for door 4 are connected in series and then connected to the coil of the loop relay K2. Contacts 1 and 2 of the loop relay K2 are connected to the safety loop.

[0069] Contacts 3 and 4 of the activation key switch S1 of the door control station are connected in parallel with the normal point of the door closing detection switch S11 of door 1, and contacts 5 and 6 of the activation key switch S1 of the door control station are connected in parallel with the contact of the door locking detection switch S12 of door 1.

[0070] Contacts 3 and 4 of the activation key switch S2 of the door control station are connected in parallel with the contact of the door closing detection switch S21 of the 2nd door, and contacts 5 and 6 of the activation key switch S2 of the door control station are connected in parallel with the contact of the door locking detection switch S22 of the 2nd door.

[0071] Contacts 3 and 4 of the activation key switch S3 of the door control station are connected in parallel with the contact of the door closing detection switch S31 of door 3, and contacts 5 and 6 of the activation key switch S3 of the door control station are connected in parallel with the contact of the door locking detection switch S32 of door 3.

[0072] Contacts 3 and 4 of the door activation key switch S4 of the door control station are connected in parallel with the contact of the door closing detection switch S41 of the 4th door, and contacts 5 and 6 of the door activation key switch S4 of the door control station are connected in parallel with the contact of the door locking detection switch S42 of the 4th door.

[0073] If you need to open door No. 1, turn the key switch of door control station 1, and the auxiliary contacts 1 and 2 of key switch S1 are closed, activating door control station 1. At the same time, the auxiliary contacts 3 and 4 of key switch S1 are closed, and 5 and 6 are closed, respectively bypassing the auxiliary contacts of the door closing limit switch (S11) and the locking limit switch (S12) of door No. 1. Press the local door opening button of the door control station to open the door. After the door is opened, S11 and S12 are disconnected, and the circuits of relays K1 and K2 remain conductive. When the remaining doors are closed, the circuits of relays K3 and K4 are conductive. At this time, the auxiliary contacts 1 and 2 of the door closing relays K1 and K3 of each vehicle are closed, and the auxiliary contacts 1 and 2 of the door locking relays K2 and K4 are closed, and the door safety loop is still established when door No. 1 is open.

[0074] In the above scheme, when a door is electrically opened by pressing a button at the door control station when the train is running at a low speed, it does not affect the establishment of the safety loop.

[0075] The technical solution provided in this embodiment solves the need to open the door to observe the platform when the train is running at a low speed, which increases the scope of application of the train. It also reduces the number of auxiliary contacts in the door safety loop and reduces the failure rate. The use of the main door controller and the train control board makes the system wiring simpler, reducing the system cost and troubleshooting time.

[0076] On the basis of the above technical solutions, this embodiment further provides a rail train, including the door control system provided by any of the above contents. The rail train provided by this embodiment has the same technical effect as the above door control system.

[0077] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A door control system, characterized in that: include: Door status detection device; Each door in the train is equipped with a door status detection device; when the door is closed normally, an effective door closing signal is generated and connected to the train safety loop; Gate control station; A door control station is provided next to at least one door, and is used to open or close the corresponding door; when the door control station is activated, the corresponding door can be opened through the door control station and the door closing signal of the corresponding door can be bypassed, so that the opened door does not affect the train safety loop.

2. The door control system according to claim 1, characterized in that: The door state detection device comprises: a door closing detection switch and a door locking detection switch, and the contacts of the door closing detection switch and the contacts of the door locking detection switch are both connected to a safety loop.

3. The door control system according to claim 1, characterized in that: The door control station is equipped with a local door opening button, a local door closing button, a centralized door opening button, a centralized door closing button, a door status indicator light and a door control station activation indicator light, etc. There is also a key switch used to activate the door control station with a special key before the buttons can be operated.

4. The door control system according to claim 3, characterized in that: The gate control station is connected to the train's master gate controller and the relevant train line; Or the gate control station is connected to the train control panel, door controller and related train lines.

5. The door control system according to claim 4, characterized in that: The door control station also includes: an activation relay; a key switch connected to the coil of the activation relay; a normally open contact of the activation relay connected in parallel with a door closing detection switch and a door locking detection switch to realize a bypass function of the local door opening state.

6. The door control system according to claim 5, characterized in that: Also includes: Door detection relay and loop relay; The door closing detection switch and the door locking detection switch corresponding to the door with the door control station are connected in series, and then connected to the coil of the door detection relay; The contacts of the door detection relay are connected in series with the door closing detection switch and the door locking detection switch corresponding to the door without the door control station, and are connected to the coil of the loop relay. The contacts of the loop relay are connected to the safety loop; the normally open contacts of the door control station activation relay are connected in parallel with the contacts of the door detection relay.

7. The door control system according to claim 4, characterized in that: Also includes: Loop relay; the contact of the door closing detection switch is connected to the coil of the loop relay, and the contact of the loop relay is connected to the safety loop; The contact of the door lock detection switch is connected to the coil of another loop relay, and the contact of the loop relay is connected to the safety loop; The normally open contacts of the door control station key switch are respectively connected in parallel with the contacts of the door closing detection switch and the contacts of the door locking detection switch.

8. The door control system according to claim 7, characterized in that: The contacts of the door lock detection switches of at least two pairs of doors are connected in series and then connected to the coils of the loop relays accordingly; the contacts of the door lock detection switches of at least two pairs of doors are connected in series and then connected to the coils of the loop relays accordingly.

9. The vehicle door control system according to claim 8, characterized in that: Each door is provided with a door control station, and the normally open contacts of the key switch of the door control station are connected in parallel with the contacts of the door closing detection switch and the contacts of the door locking detection switch of the door.

10. A rail train, characterized in that: include: A door control system as claimed in any one of claims 1 to 9.

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