A platform screen door control system

Abstract

An embodiment of the present invention discloses a platform screen door control system. On the basis of the traditional platform screen door control system, the embodiment of the present invention adds a communication control interface to the platform screen door control system by setting up a secure communication module, enabling the platform screen door control system to communicate with an external system and receive platform screen door control instructions issued by the external system. At the same time, the embodiment of the present invention also sets up a communication control relay module in the control system, enabling the secure communication module to uniformly control the opening and closing of the platform screen doors according to the platform screen door control instructions received by the external system. The platform screen door control system in the embodiment of the present invention can be adapted to the usage scenarios of the intelligent subway system, and under the control of the intelligent subway system, can realize the function of one-key opening and closing of the station, improving the control efficiency of the platform screen doors.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of rail transit, and in particular, to a platform screen door control system. Background Art

[0002] At present, with the continuous development of the economy, the construction of rail transit is in full swing in major cities. At present, in order to isolate passengers from the track, platform screen doors are generally installed on both sides of the platform at rail transit stations to ensure the safety of train operation. The control methods of traditional platform screen door control systems mainly include the following five types: controlling the opening and closing of platform screen doors through the signal system, local control panel, integrated backup panel or local control box, or using a special key on the platform side or opening the platform screen door through an unlocking mechanism on the track side. Among them, the first three methods are used to control the opening and closing of the entire side of platform screen doors, and the latter two methods are used for the maintenance, debugging of individual platform screen doors, and for use in emergency evacuation.

[0003] During the daily operation and maintenance of the subway, the operation personnel need to go to the position of the end wall door on each side of the platform before the station opens, and manually operate the local control panel to test the opening and closing of the platform screen doors to determine whether the platform screen doors can be opened normally. This operation and maintenance method has low efficiency, is easily affected by human factors, and has poor reliability. In addition, the one-key station opening and closing function of the multi-system joint in the intelligent subway cannot be used in the traditional platform screen door control system, resulting in low control efficiency of the platform screen door system for the platform screen doors.

[0004] In summary, how to improve the control efficiency of platform screen doors has become a technical problem that needs to be solved urgently at present. Summary of the Invention

[0005] The embodiments of the present invention provide a platform screen door control system, which solves the technical problem of low control efficiency of platform screen doors in the prior art.

[0006] In a first aspect, the embodiments of the present invention provide a platform screen door control system, including a door control unit, a safety communication module, and a control system. The control system includes a communication control relay module, and the communication control relay module includes a plurality of first relays communicatively connected to the door control unit.

[0007] The first data transmission port of the safety communication module is used to receive a platform screen door control instruction. The second data transmission port of the safety communication module is connected to the third data transmission port of the control system, and is used to confirm whether to allow the control of the platform screen door after receiving the platform screen door control instruction. If allowed, the platform screen door control instruction is sent to the control system.

[0008] The control system is used to control the action of the first relay in the communication control relay module according to the received platform door control instruction, so as to send a door opening / closing signal to the door control unit;

[0009] The door control unit is used to control the opening or closing of the platform door according to the received door opening / closing signal.

[0010] Preferably, the control system further includes a control device relay module, and the control device relay module includes a plurality of second relays that are communicatively connected to the door control unit; an action priority between the control device relay module and the communication control relay module is set in the control system;

[0011] The control device relay module is used to control the action of the second relay under the control of the platform door control device, so as to send the door opening / closing signal to the door control unit;

[0012] The control system is further used to collect the status information of the first relay in the communication control relay module and the status information of the second relay in the control device relay module, and is used to generate priority information according to the action priority, and send the status information and the priority information to the safety communication module;

[0013] The safety communication module is specifically used to confirm whether to allow the control of the platform door according to the status information and the priority information after receiving the platform door control instruction.

[0014] Preferably, the action priority of the control device relay module is greater than the action priority of the communication control relay module;

[0015] The safety communication module is specifically used to determine the action priority according to the priority information after receiving the platform door control instruction, and prohibit the control of the platform door when the second relay in the control device relay module is in an action state according to the status information.

[0016] Preferably, the safety communication module is further used to, during the process of sending the platform door control instruction to the control system, if it is determined according to the status information that the second relay in the control device relay module is in an action state, stop sending the platform door control instruction to the control system, so as to reset the first relay.

[0017] Preferably, the control device relay module includes three relay sub-modules, namely an IBP relay sub-module, a PSL relay sub-module and a SIG relay sub-module, and the second relays include an IBP relay, a PSL relay and a SIG relay;

[0018] The IBP relay sub-module is used to control the IBP relay to act under the control of the integrated backup panel, so as to send the door opening / closing signal to the door control unit;

[0019] The PSL relay sub-module is used to control the PSL relay to act under the control of the local control panel, so as to send the door opening / closing signal to the door control unit;

[0020] The SIG relay sub-module is used to control the SIG relay to act under the control of the signal system, so as to send the door opening / closing signal to the door control unit.

[0021] Preferably, each of the relay sub-modules and the communication control relay module further includes a priority input unit, an enable control unit, and a priority output unit;

[0022] The priority input unit is used to cut off the communication link between the corresponding relay and the door control unit when receiving a priority signal; the relays include the first relay and the second relay;

[0023] The enable control unit is used to connect the communication link between the corresponding relay and the door control unit when receiving an enable signal and the priority input unit does not receive the priority signal, and to cut off the communication link between the corresponding relay and the door control unit when not receiving the enable signal and the priority input unit does not receive the priority signal;

[0024] The priority output unit is used to output the priority signal to all subordinate relay sub-modules or communication control relay modules when the communication link between the corresponding relay and the door control unit is connected.

[0025] Preferably, the output end of the priority output unit of the IBP relay sub-module is connected to the input end of the priority input unit of the PSL relay sub-module, the output end of the priority output unit of the PSL relay sub-module is connected to the input end of the priority input unit of the SIG relay sub-module, and the output end of the priority output unit of the SIG relay sub-module is connected to the input end of the priority input unit of the communication control relay module.

[0026] Preferably, the first data transmission port of the security communication module includes a set of transmission interface pairs;

[0027] The security communication module is further configured to, when any one of the transmission interfaces in the transmission interface pair receives data, compare the data received by this transmission interface with the data received by the other transmission interface in the same group of transmission interfaces within the current synchronization period; if the data is consistent, determine that the data is valid; if the data is inconsistent, continue to compare the data received by the two transmission interfaces in subsequent synchronization periods, and if the number of consecutive inconsistent synchronization periods of the data reaches a preset number, perform a protection action.

[0028] Preferably, the security communication module is specifically configured to, after receiving the platform door control instruction, determine whether the current time is within a preset time period;

[0029] If so, allow the control of the platform door, and send the platform door control instruction to the control system; otherwise, do not allow the control of the platform door, and prohibit sending the platform door control instruction to the control system.

[0030] Preferably, the control system is communicatively connected to the door control unit;

[0031] The control system is further configured to obtain the door control status information of the door control unit, and send the status information to the security communication module;

[0032] The security communication module is further configured to determine whether the door control unit is communicatively connected to the first relay according to the door control status information.

[0033] As described above, based on the traditional platform door control system, the embodiment of the present invention adds a communication control interface to the platform door control system by setting a security communication module, enabling the platform door control system to communicate with an external system and receive the platform door control instruction issued by the external system. At the same time, the embodiment of the present invention also sets a communication control relay module in the control system, enabling the security communication module to uniformly control the opening and closing of the platform door according to the platform door control instruction received by the external system. The platform door control system in the embodiment of the present invention can be adapted to the usage scenario of the intelligent subway system, and under the control of the intelligent subway system, can realize the function of one-key station opening and closing, improving the control efficiency of the platform door. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic structural diagram of a platform door control system provided by an embodiment of the present invention.

[0035] Figure 2 It is a schematic structural diagram of another platform door control system provided by an embodiment of the present invention.

[0036] Figure 3Schematic diagram of the operation principle of a relay sub-module or a communication control relay module provided by an embodiment of the present invention.

[0037] Figure 4 Schematic diagram of the connection between a relay sub-module and a communication control relay module provided by an embodiment of the present invention.

[0038] Figure 5 Schematic diagram of the structure of another platform door control system provided by an embodiment of the present invention. Detailed implementation manners

[0039] The following description and drawings fully illustrate the specific implementation manners of the present application, enabling those skilled in the art to practice them. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The scope of the embodiments of the present application includes the entire scope of the claims and all available equivalents of the claims. In this document, the embodiments can be individually or collectively referred to by the term "invention" for convenience only, and if more than one invention is actually disclosed, it is not intended to automatically limit the scope of the application to any single invention or inventive concept. In this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method or device comprising a series of elements includes not only those elements but also other elements not explicitly listed. The embodiments in this document are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the structures, products, etc. disclosed in the embodiments, since they correspond to the parts disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0040] The intelligent subway system is a comprehensive system that, based on the full automation of subway operation without drivers, breaks through the traditional subway's orientation towards automated train operation and aims to provide safe, comfortable, and fast travel for subway passengers as the ultimate need. The intelligent subway system not only includes a signaling system but also core systems such as an integrated monitoring system, a vehicle system, and a platform screen door system. Among them, the one-key station opening and closing function of multiple systems combined means that before the station starts operation, the control center issues instructions to each core system through a communication interface. Each core system completes self-check within the system and feeds back the results to the control center, thus realizing the one-key station opening and closing function. Currently, however, the traditional platform screen door control system cannot be adapted to the intelligent subway system, resulting in the inability to achieve the one-key station opening and closing function.

[0041] As Figure 1 shown, Figure 1 FIG. is a schematic structural diagram of the platform screen door control system provided by an embodiment of the present invention. The platform screen door control system provided by this embodiment includes a door control unit, a safety communication module, and a control system. The control system includes a communication control relay module, and the communication control relay module includes a plurality of first relays communicatively connected to the door control unit.

[0042] The first data transmission port of the safety communication module is used to receive the platform screen door control instruction. The second data transmission port of the safety communication module is connected to the third data transmission port of the control system and is used to confirm whether to allow control of the platform screen door after receiving the platform screen door control instruction. If allowed, the platform screen door control instruction is sent to the control system.

[0043] In this embodiment, the first data transmission port of the safety communication module is used to receive the platform screen door control instruction, and the platform screen door control instruction is used to control the opening and closing of the platform screen door. The platform screen door control instruction can be issued by the control center in the intelligent subway system. For example, the first data transmission port of the safety communication module can be connected to the integrated monitoring system of the control center. The integrated monitoring system is used to collect the status information of each device on the rail transit line, monitor each device according to the status information, and at the same time, the integrated monitoring system can also respond to user input, issue the platform screen door control instruction, and send the platform screen door control instruction to the safety communication module through the first data transmission port.

[0044] The second data transmission port of the security communication module is connected to the third data transmission port of the control system. After receiving the platform door control instruction, the security communication module needs to further confirm whether it is allowed to control the platform door. If allowed, it will send the platform door control instruction to the control system through the second data transmission port; otherwise, it will not send the platform door control instruction to the control system. Exemplarily, after receiving the platform door control instruction, the security communication module determines whether the current time is a period when it is allowed to control the platform door. If so, it will send the platform door control instruction to the control system. Or, after receiving the platform door control instruction, the security communication module determines whether there is any other external device currently controlling the platform door. For example, it determines whether any one of the current local control box, integrated backup panel, local control panel, or signal system is controlling the platform door. If so, it will also not send the platform door control instruction to the control system.

[0045] The control system is used to control the first relay in the communication control relay module to act according to the received platform door control instruction, so as to send the door opening and closing signals to the door control unit.

[0046] In this embodiment, when the control system receives the platform door control instruction sent by the security communication module, the control system controls the first relay in the communication control relay module to act according to the platform door instruction, so as to send the door opening signal to the door control unit. Exemplarily, the platform door system can be a PEDC system. The third data transmission port includes an output interface and an input interface. The input interface is used to receive the data sent by the security communication module, and the output interface is used to send data to the security communication module. A communication control relay module is provided in the PEDC system. The first relay in the communication control relay module includes an opening relay and a closing relay. Both the opening relay and the closing relay are connected to each door control unit in the station through hard wires. The PEDC system outputs the relay coil states of the opening relay and the closing relay to the hard wire interface through contacts. The platform door control instruction includes an opening control signal and a closing control signal. When the opening control signal is transmitted to the opening relay, the opening relay acts and sends the door opening signal to each door control unit through the hard wire; when the closing control signal is transmitted to the closing relay, the closing relay acts and sends the door closing signal to each door control unit through the hard wire.

[0047] The door control unit is used to control the opening or closing of the platform door according to the received door opening and closing signals.

[0048] The gating unit is used to control the opening or closing of the platform screen door when receiving the door opening / closing signal sent by the communication control relay module. Specifically, when the gating unit receives the door opening signal sent by the communication control relay module, it controls the platform screen door to open, and when it receives the door closing signal sent by the communication control relay module, it controls the platform screen door to close.

[0049] As described above, based on the traditional platform screen door control system, the embodiment of the present invention adds a communication control interface to the platform screen door control system by setting a safety communication module, enabling the platform screen door control system to communicate with an external system and receive the platform screen door control instructions issued by the external system. At the same time, the embodiment of the present invention also sets a communication control relay module in the control system, enabling the safety communication module to uniformly control the opening and closing of the platform screen door according to the platform screen door control instructions received by the external system. The platform screen door control system in the embodiment of the present invention can be adapted to the usage scenario of the intelligent subway system, and under the control of the intelligent subway system, it can realize the function of one-key station opening / closing, improving the control efficiency of the platform screen door.

[0050] Based on the above embodiment, the control system further includes a control device relay module, and the control device relay module includes a plurality of second relays communicatively connected to the gating unit; an action priority between the control device relay module and the communication control relay module is set within the control system.

[0051] In one embodiment, the control system further includes a control device relay module, and the control device relay module includes a plurality of second relays communicatively connected to the gating unit. Similarly, the relay coil state of the second relay is output to the hardwired interface through the contact, so that the control device relay module can send the door opening / closing signal to the gating unit by controlling the action of the second relay. In addition, it should be further noted that an action priority between the control device relay module and the communication control relay module is also set within the control system. The action priority refers to the priority degree of the control device relay module and the communication control relay module in controlling the platform screen door. If the action priority of the control device relay module is greater than that of the communication control relay module, then when the control device relay module controls the platform screen door, the communication control relay module cannot control the platform screen door.

[0052] The control device relay module is used to control the action of the second relay under the control of the platform screen door control device, so as to send the door opening / closing signal to the gating unit.

[0053] The control device relay module is used to control the second relay to act under the control of the platform screen door control device, so as to send door opening and closing signals to the door control unit. Among them, the platform screen door control device can be a local control box, an integrated backup panel, a local control panel or a signal system, etc., so that the platform screen door control system can also be compatible with the traditional platform screen door control method to control the platform screen door.

[0054] The control system is also used to collect the status information of the first relay in the communication control relay module and the status information of the second relay in the control device relay module, and to generate priority information according to the action priority, and send the status information and the priority information to the safety communication module.

[0055] In this embodiment, the control system is also used to collect the status information of the first relay in the communication control relay module and the status information of the second relay in the control device relay module, and send the status information of the first relay and the status information of the second relay to the safety communication module through the output interface. At the same time, the control system is also used to generate priority information in real time according to the action priorities of the control device relay module and the communication control relay module, and send the priority information to the safety communication module through the output interface. In one embodiment, the control system can send the status information and the priority information to the safety communication module through the output interface when receiving the data acquisition instruction of the safety communication module.

[0056] The safety communication module is specifically used to confirm whether to allow the control of the platform screen door according to the status information and the priority information after receiving the platform screen door control instruction.

[0057] The safety communication module is used to determine whether to allow the control of the platform screen door according to the status information and the priority information uploaded by the control system after receiving the platform screen door control instruction. For example, the safety communication module can determine the action priorities of the control device relay module and the communication control relay module according to the priority information, and determine whether the control device relay module with an action priority higher than that of the communication control relay module is controlling the platform screen door according to the status information of the first relay and the status information of the second relay. If so, it is not allowed for the integrated monitoring system to control the platform screen door, and the platform screen door control instruction is not sent to the control system.

[0058] On the basis of the above embodiment, the action priority of the control device relay module is greater than the action priority of the communication control relay module.

[0059] The safety communication module is specifically used to determine the action priority according to the priority information and prohibit the control of the platform screen door when the second relay in the control device relay module is in the action state according to the status information after receiving the platform screen door control instruction.

[0060] In one embodiment, the action priority of the control device relay module is higher than that of the communication control relay module. After receiving the platform door control instruction, the safety communication module sends a data acquisition instruction to the control system, and then the control system sends the status information and priority information to the safety communication module in real time. After the safety communication module determines that the action priority of the control device relay module is higher than that of the communication control relay module according to the priority information, it determines the status of the first relay and the second relay according to the status information. When the second relay is in the action state, it means that the second relay is controlling the platform door. At this time, the integrated monitoring system is prohibited from controlling the platform door. The safety communication module returns the error information to the first data transmission port and does not send the platform door control instruction to the control system.

[0061] Based on the above embodiment, the safety communication module is further configured to, during the process of sending the platform door control instruction to the control system, if it is determined according to the status information that the second relay in the control device relay module is in the action state, stop sending the platform door control instruction to the control system to reset the first relay.

[0062] In one embodiment, when the safety communication module sends the platform door control instruction to the control system to enable the communication control relay module to control the platform door, if the safety communication module determines according to the status information uploaded by the control system that the second relay in the control device relay module is in the action state, it means that external devices such as the local control box, the integrated backup panel, the local control panel, or the signal system are controlling the platform door at this time. Due to the priority limitation, the safety communication module stops sending the platform door control instruction to the control system, and the communication control relay module resets the first relay. At the same time, the safety communication module returns the priority limitation information to the first data transmission port, and the integrated monitoring system terminates the execution of the platform door control instruction.

[0063] Based on the above embodiment, the control device relay module includes three relay sub-modules: the IBP relay sub-module, the PSL relay sub-module, and the SIG relay sub-module. The second relay includes the IBP relay, the PSL relay, and the SIG relay.

[0064] The IBP relay sub-module is used to control the IBP relay to act under the control of the integrated backup panel to send a door opening / closing signal to the door control unit.

[0065] The PSL relay sub-module is used to control the PSL relay to act under the control of the local control panel to send a door opening / closing signal to the door control unit.

[0066] The SIG relay sub-module is used to control the SIG relay to act under the control of the signal system, so as to send door opening and closing signals to the gating unit.

[0067] In one embodiment, as Figure 2 shown, the platform screen door control device includes an integrated backup panel IBP (integrated backup panel), a platform screen doors local control panel PSL (platform screen doors local control panel), and a signaling system SIG (signaling system). The control device relay module includes three relay sub-modules: the IBP relay sub-module, the PSL relay sub-module, and the SIG relay sub-module. The second relay includes the IBP relay, the PSL relay, and the SIG relay. The IBP relay sub-module is used to control the IBP relay to act under the control of the integrated backup panel, so as to send door opening and closing signals to the gating unit. The PSL relay sub-module is used to control the PSL relay to act under the control of the local control panel, so as to send door opening and closing signals to the gating unit. The SIG relay sub-module is used to control the SIG relay to act under the control of the signal system, so as to send door opening and closing signals to the gating unit. In this embodiment, by setting the control device relay module, the platform screen door control system can control the platform screen doors through traditional methods such as the integrated backup panel, the local control panel, and the signal system. The specific process of the integrated backup panel, the local control panel, and the signal system controlling the platform screen doors can refer to the prior art and will not be elaborated in this embodiment.

[0068] Based on the above embodiment, each relay sub-module and the communication control relay module further include a priority input unit, an enable control unit, and a priority output unit.

[0069] In this embodiment, each relay sub-module and the communication control relay module further include a priority input unit, an enable control unit, and a priority output unit. With the cooperation of the priority input unit, the enable control unit, and the priority output unit, by changing the connection relationship between the relay sub-module and other relay sub-modules or with the communication control relay module, the action priority of each relay sub-module and the communication control relay module can be changed.

[0070] The priority input unit is used to cut off the communication link between the corresponding relay and the gating unit when receiving a priority signal; the relay includes a first relay and a second relay.

[0071] In this embodiment, the priority input unit is configured to cut off the communication link between the corresponding relay and the gating unit when receiving a priority signal, where the corresponding relay refers to the relay of the module where the priority unit is located. For example, in the SIG relay sub-module, the relay corresponding to the priority input unit is the SIG relay; in the communication control relay module, the relay corresponding to the priority input unit is the first relay. And so on for other cases, which will not be elaborated in this embodiment.

[0072] The enable control unit is configured to connect the communication link between the corresponding relay and the gating unit when receiving an enable signal and the priority input unit does not receive a priority signal, and to cut off the communication link between the corresponding relay and the gating unit when not receiving an enable signal.

[0073] The enable control unit is configured to connect the communication link between the corresponding relay and the gating unit when receiving an enable signal and the priority input unit does not receive a priority signal. Among them, before the control system controls the first relay in the communication control relay module to act, it sends an enable signal to the enable control unit in the communication control relay module. For each relay sub-module, before the platform door control device controls the corresponding second relay to act, it sends an enable signal to the enable control unit in the relay sub-module. For example, before the signal system controls the SIG relay in the SIG relay sub-module to act, it sends an enable signal to the enable control unit in the SIG relay sub-module.

[0074] The priority output unit is configured to output a priority signal to the next relay sub-module or the communication control relay module when the communication link between the corresponding relay and the gating unit is connected.

[0075] The priority output unit is configured to output a priority signal to all subordinate relay sub-modules or the communication control relay module when the communication link between the corresponding relay and the gating unit is connected.

[0076] Exemplarily, in one embodiment, such as Figure 3As shown in the figure, the priority input unit includes a relay K1A, and the enable control unit includes an enable relay K2A. The door-opening relay K3A and the door-closing relay K4A form the first relay or the second relay. When the priority input unit receives a priority signal, the coil of the relay K1A is energized and pulled up, and the contact K1B is disconnected, so that the control circuits of the enable relay K2A, the door-opening relay K3A and the door-closing relay K4A are disconnected. That is, in the case of receiving a priority signal, the present relay sub-module or the communication control relay module cannot perform corresponding control operations. When an enable signal is received and the priority input unit does not receive a priority signal, the enable relay K2A is energized and pulled up, and the contact K2C is closed. The priority output unit inputs a priority signal and outputs the priority signal to all subordinate relay sub-modules or communication control relay modules. Among them, all subordinate relay sub-modules or communication control relay modules refer to each relay sub-module or communication control relay module with a lower action priority than itself. When no enable signal is received, the coil of the enable relay K2A loses power and releases, and the contacts K1B and K2C are disconnected, and the priority output unit no longer outputs a priority signal.

[0077] In the embodiment of the present invention, by setting the connection relationship between the priority input unit and the priority output unit of each relay sub-module and the communication control relay module, the action priority between each relay sub-module and the communication control relay module can be set. Exemplarily, the action priority from high to low is IBP relay sub-module → PSL relay sub-module → SIG relay sub-module → communication control relay module. Then the connection relationship between the relay sub-modules and between the relay sub-module and the communication control relay module is as follows:

[0078] The output end of the priority output unit of the IBP relay sub-module is connected to the input end of the priority input unit of the PSL relay sub-module. The output end of the priority output unit of the PSL relay sub-module is connected to the input end of the priority input unit of the SIG relay sub-module. The output end of the priority output unit of the SIG relay sub-module is connected to the input end of the priority input unit of the communication control relay module, as Figure 4As shown. At this time, for the IBP relay sub-module, all subordinate relay sub-modules or communication control relay modules include the PSL relay sub-module, the SIG relay sub-module, and the communication control relay module. The priority signal of the IBP relay sub-module needs to be output to the PSL relay sub-module, the SIG relay sub-module, and the communication control relay module. Similarly, for the PSL relay sub-module, all subordinate relay sub-modules or communication control relay modules include the SIG relay sub-module and the communication control relay module. For the SIG relay sub-module, all subordinate relay sub-modules or communication control relay modules include the communication control relay module.

[0079] Based on the above embodiments, the first data transmission port of the security communication module includes a set of transmission interface pairs.

[0080] The security communication module is also used to, when any one of the transmission interfaces of the transmission interface pair receives data, within the current synchronization period, compare the data received by this transmission interface with the data received by the other transmission interface within the same set of transmission interface pairs; if the data is consistent, determine that the data is valid; if the data is inconsistent, continue to compare the data received by the two transmission interfaces in subsequent synchronization periods. When the number of consecutive inconsistent synchronization periods reaches a preset number, a protection action is executed.

[0081] In this embodiment, the first data transmission port of the security communication module includes a set of transmission interface pairs. After receiving the data transmitted by the transmission interface pair, the security communication module will also perform a two-out-of-two data comparison process to confirm the security of the data. Specifically, in this embodiment, when any one of the transmission interfaces of the transmission interface pair receives data, within the current synchronization period, the data received by this transmission interface will be compared with the data received by the other transmission interface within the same set of transmission interface pairs; if the data is consistent, determine that the data is valid, and perform subsequent steps such as confirming whether to allow control of the platform screen door. If the data is inconsistent, N synchronization periods will be tolerated. If the data comparison is inconsistent for N consecutive synchronization periods, the platform screen door control system will execute a protection action, such as crashing and alarming.

[0082] Exemplarily, in this embodiment, the structure of the security communication module is as Figure 5As shown in the figure, it includes two processor modules, a clock module, and a safety IO module. The two processor modules are respectively connected to one of the transmission interfaces in the transmission interface pair. When the integrated monitoring system issues a platform door control instruction, it simultaneously sends the platform door control instruction to the two transmission interfaces of the first transmission interface. Then, the two transmission interfaces will respectively send the platform door control instruction to the two processor modules. The two processor modules will synchronize and compare data with the other processor module in each synchronization cycle to determine whether the received data is consistent. It should be noted that in this embodiment, both processor modules are provided with independent external pulse sources to ensure that the clock cycles of the two processor modules are the same. If the clock cycle of one of the processor modules is incorrect, it will also cause data synchronization failure.

[0083] The safety IO module is connected to the second data transmission port. After receiving the data received by the second data transmission port, the safety IO module also transmits the data to the two processor modules respectively for two-out-of-two data comparison processing to ensure the security of the interface data. It should be noted that the safety IO module is equivalent to an AND gate structure. When the safety IO module receives that the data output by the two processor modules is consistent, it will transmit the data to the control system to prevent misoperation of the system.

[0084] Based on the above embodiment, the secure communication module is specifically configured to determine whether the current time is within a preset time period after receiving the platform door control instruction.

[0085] If so, it is allowed to control the platform door, and the platform door control instruction is sent to the control system; otherwise, it is not allowed to control the platform door, and the platform door control instruction is prohibited from being sent to the control system.

[0086] In one embodiment, considering that the application scenario of communication control is equipment self-check during non-operation periods, the remote control function must be prohibited during operation periods. Standardizing the operators is a preventive measure. For this reason, the platform door control system of this station is provided with configurable communication control time parameters to avoid issuing control commands due to misoperation or other reasons, causing the platform door to malfunction. Specifically, a preset time period is pre-stored in the secure communication module. When the secure communication module receives the platform door control instruction, it determines whether the current time is within the preset time period. If so, it is allowed to control the platform door, and the platform door control instruction is sent to the control system; otherwise, it is not allowed to control the platform door, and the secure communication module returns the time limit information to the first data transmission port, prohibiting the platform door control instruction from being sent to the control system. Among them, the preset time period can be set according to the non-operation period of the station.

[0087] It should be further noted that when the security communication module sends the platform door control instruction to the control system, if the current time exceeds the preset time period, the security communication module will return the time limit information to the first data transmission port and stop sending the platform door control instruction to the control system. For example, the output of the safety IO module can be cut off, so that the communication control relay module resets the first relay.

[0088] On the basis of the above embodiment, the control system is communicatively connected to the door control unit.

[0089] The control system is also used to obtain the door control status information of the door control unit and send the status information to the security communication module.

[0090] The security communication module is also used to determine whether the door control unit is communicatively connected to the first relay according to the door control status information.

[0091] In one embodiment, as Figure 5 shown, the control system is also communicatively connected to each door control unit through redundant CAN bus interfaces 1 and 2. The control system collects the door control status information of each door control unit through the CAN bus and sends the door control status information to the security communication module, where the door control status information includes the information on whether the door control unit is communicatively connected to the first relay. When the control system controls the platform door, the security communication module is also used to judge whether the door control unit is communicatively connected to the first relay according to the door control status information. When there is a door control unit that is not communicatively connected to the first relay, the security communication module will record the corresponding alarm information. Similarly, when the control system does not control the platform door, the security communication module is also used to judge whether the door control unit is communicatively connected to the first relay according to the door control status information. When there is a door control unit that is communicatively connected to the first relay, the security communication module will also record the corresponding alarm information to remind the staff to repair the abnormal door control unit.

[0092] As described above, based on the traditional platform screen door control system, the embodiment of the present invention adds a communication control interface to the platform screen door control system by setting up a secure communication module, enabling the platform screen door control system to communicate with external systems and receive platform screen door control instructions issued by external systems. At the same time, the embodiment of the present invention also sets up an IBP relay sub-module, a PSL relay sub-module, a SIG relay sub-module, and a communication control relay module in the control system, enabling not only the traditional method of controlling the platform screen door, but also the secure communication module to control the opening and closing of the platform screen door by issuing platform screen door control instructions. Meanwhile, the action priority among the relay sub-module and the communication control relay module can be flexibly configured by changing the connection relationship. The platform screen door control system in the embodiment of the present invention can be adapted to the usage scenarios of the intelligent subway system, and under the control of the intelligent subway system, can realize the function of one-key station opening and closing, improving the control efficiency of the platform screen door.

[0093] Note that the above is only the preferred embodiment of the embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the embodiment of the present invention is not limited to the specific embodiment here, and various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the embodiment of the present invention. Therefore, although the embodiment of the present invention has been described in detail through the above embodiments, the embodiment of the present invention is not limited to the above embodiments only. Without departing from the concept of the embodiment of the present invention, more other equivalent embodiments can be included, and the scope of the embodiment of the present invention is determined by the scope of the appended claims.

Claims

1. A platform screen door control system, characterized in that, it includes a door control unit, a safety communication module and a control system. The control system includes a communication control relay module, and the communication control relay module includes a plurality of first relays communicatively connected to the door control unit; The first data transmission port of the safety communication module is used to receive the platform screen door control instruction. The second data transmission port of the safety communication module is connected to the third data transmission port of the control system, and is used to confirm whether to allow the control of the platform screen door after receiving the platform screen door control instruction; if allowed, the platform screen door control instruction is sent to the control system; The control system is used to control the action of the first relay in the communication control relay module according to the received platform screen door control instruction, so as to send a door opening / closing signal to the door control unit; The door control unit is used to control the opening or closing of the platform screen door according to the received door opening / closing signal; Wherein, the control system further includes a control device relay module, and the control device relay module includes a plurality of second relays communicatively connected to the door control unit; an action priority between the control device relay module and the communication control relay module is set in the control system; The control device relay module is used to control the action of the second relay under the control of the platform screen door control device, so as to send the door opening / closing signal to the door control unit; The control system is further used to collect the status information of the first relay in the communication control relay module and the status information of the second relay in the control device relay module, and is used to generate priority information according to the action priority, and send the status information and the priority information to the safety communication module; The safety communication module is specifically used to confirm whether to allow the control of the platform screen door according to the status information and the priority information after receiving the platform screen door control instruction.

2. A platform screen door control system according to claim 1, characterized in that, the action priority of the control device relay module is higher than that of the communication control relay module; The safety communication module is specifically used to determine the action priority according to the priority information after receiving the platform screen door control instruction, and prohibit the control of the platform screen door when it is determined according to the status information that the second relay in the control device relay module is in an action state.

3. A platform screen door control system according to claim 2, characterized in that, The safety communication module is further used to, during the process of sending the platform screen door control instruction to the control system, if it is determined according to the status information that the second relay in the control device relay module is in an action state, stop sending the platform screen door control instruction to the control system, so as to reset the first relay.

4. A platform screen door control system according to claim 2, characterized in that, The relay module of the control device includes three relay sub-modules, namely the IBP relay sub-module, the PSL relay sub-module, and the SIG relay sub-module. The second relay includes the IBP relay, the PSL relay, and the SIG relay; The IBP relay sub-module is used to control the action of the IBP relay under the control of the integrated backup panel, so as to send the door opening / closing signal to the door control unit; The PSL relay sub-module is used to control the action of the PSL relay under the control of the local control panel, so as to send the door opening / closing signal to the door control unit; The SIG relay sub-module is used to control the action of the SIG relay under the control of the signal system, so as to send the door opening / closing signal to the door control unit.

5. A platform screen door control system according to claim 4, wherein, Each of the relay sub-modules and the communication control relay module further includes a priority input unit, an enable control unit, and a priority output unit; The priority input unit is used to cut off the communication link between the corresponding relay and the door control unit when a priority signal is received; the relays include the first relay and the second relay; The enable control unit is used to connect the communication link between the corresponding relay and the door control unit when an enable signal is received and the priority input unit does not receive the priority signal, and to cut off the communication link between the corresponding relay and the door control unit when the enable signal is not received and the priority input unit does not receive the priority signal; The priority output unit is used to output the priority signal to all subordinate relay sub-modules or communication control relay modules when the communication link between the corresponding relay and the door control unit is connected.

6. A platform screen door control system according to claim 5, wherein, The output end of the priority output unit of the IBP relay sub-module is connected to the input end of the priority input unit of the PSL relay sub-module, the output end of the priority output unit of the PSL relay sub-module is connected to the input end of the priority input unit of the SIG relay sub-module, and the output end of the priority output unit of the SIG relay sub-module is connected to the input end of the priority input unit of the communication control relay module.

7. A platform screen door control system according to claim 1, wherein, The first data transmission port of the secure communication module includes a set of transmission interface pairs; The secure communication module is further configured to, when any one of the transmission interfaces of the transmission interface pair receives data, compare the data received by this transmission interface with the data received by the other transmission interface within the same set of transmission interface pairs during the current synchronization period; if the data is consistent, determine that the data is valid; If the data is inconsistent, continue to compare the data received by the two transmission interfaces in subsequent synchronization cycles. When the number of consecutive synchronization cycles with inconsistent data reaches a preset quantity, a protection action is executed.

8. A platform screen door control system according to claim 1, wherein, the secure communication module is specifically configured to, after receiving the platform screen door control instruction, determine whether the current time is within a preset time period; if so, allow control of the platform screen door and send the platform screen door control instruction to the control system; otherwise, do not allow control of the platform screen door and prohibit sending the platform screen door control instruction to the control system.

9. A platform screen door control system according to claim 1, wherein, the control system is communicatively connected to the door control unit; the control system is further configured to obtain the door control status information of the door control unit and send the door control status information to the secure communication module; the secure communication module is further configured to determine whether the door control unit is communicatively connected to the first relay according to the door control status information.

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