Control system of metro flood gate
By designing a subway anti-flood door control system that includes remote control, on-site control and maintenance units, the problems of inconvenience and safety hazards in the prior art are solved, and more efficient and safe anti-flood door control is achieved.
Patent Information
- Application Number
- CN202421608799.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The existing subway anti-flood door control method is relatively inconvenient and has major safety hazards, especially when remote control is inconvenient or failure, it is impossible to control the anti-flood door in time.
A control system for subway anti-flood doors is designed, including a remote control unit, an on-site control unit and an maintenance unit. All three are communicatively connected to the actuator, and the other two are suspended when any one is controlled. The remote control unit has a prohibited and allowed state, allowing manual intervention in the allowable state; the in-situ control unit and the maintenance unit are used for in-situ and maintenance operations.
Through this control system, staff can not only remotely control the anti-flood door, but also control and repair it on site, which significantly improves the convenience of control and eliminates safety hazards when remote control is inconvenient or failure.
Smart Images
Figure CN222848052U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of underground track flood prevention doors, and in particular to a control system for subway flood prevention doors. Background Art
[0002] According to the relevant requirements of subway construction, for subway projects that pass under water areas such as rivers or lakes, flood prevention gates should be installed at appropriate locations at both ends of the tunnel entering and exiting the water area, or other flood prevention measures should be taken to prevent sudden accidents from causing tunnel ruptures and river water to rush into underground stations and section tunnels, causing the scope of the accident to expand, thereby effectively protecting the safety of underground equipment and personnel.
[0003] In the prior art, the flood prevention door is remotely controlled by the subway flood prevention equipment. The staff cannot control the flood prevention door on site, and when the flood prevention door is inspected and repaired, the subway flood prevention equipment is still needed to remotely control the flood prevention door. This control method is inconvenient and has great safety hazards. Utility Model Content
[0004] In order to improve the convenience of on-site control and maintenance of subway anti-flood doors and improve the safety of subway anti-flood door control, the present application provides a control system for subway anti-flood doors.
[0005] The control system of the subway flood prevention door provided in this application adopts the following technical solution:
[0006] A control system for a subway flood prevention door comprises a control module; the control module comprises a remote control unit, an on-site control unit and an inspection unit; the remote control unit, the on-site control unit and the inspection unit are all connected to an actuator for controlling the opening and closing of the flood prevention door, and when any one of the three controls the actuator, the other two stop working; the remote control unit is arranged away from the actuator, has a prohibition state and an allowance state, and can switch between the prohibition state and the allowance state; when the remote control unit is in the prohibition state, manual intervention is not allowed; when the remote control unit is in the allowance state, the remote control unit allows manual control of the actuator to open and close the flood prevention door through the remote control unit, or controls the actuator to stop action through the remote control unit in an emergency; the on-site control unit is arranged at a position close to the actuator, and is used to control the opening and closing of the flood prevention door through the actuator on-site; the inspection unit is used to control the opening and closing of the flood prevention door through the actuator, detect the opening and closing action of the flood prevention door, and prevent the actuator from executing the program of automatically opening and closing the flood prevention door.
[0007] Optionally, it also includes a water level monitoring module; the water level monitoring module is communicatively connected to the control module; the water level monitoring module includes multiple water level sensors; multiple water level sensors are arranged at different heights along the vertical direction, and are used to monitor the real-time water level and the rising speed of the water level at the subway track in real time, and when the real-time water level and the rising speed of the water level exceed predetermined values, a warning signal is sent to the control module.
[0008] Optionally, the water level sensor includes a first sensor, a second sensor, a third sensor and a fourth sensor; wherein the first sensor is arranged 100 mm below the bottom surface of the subway track; the second sensor is 100 mm higher than the first sensor; the third sensor is 100 mm higher than the second sensor; and the fourth sensor is 100 mm higher than the third sensor.
[0009] Optionally, it also includes a stroke detection module; the stroke detection module is communicatively connected to the control module; the stroke detection module includes a stroke switch; the stroke switch is connected to the actuator to detect whether the actuator has moved into place.
[0010] Optionally, it also includes a comprehensive monitoring module; the water level monitoring module and the stroke detection module are both communicatively connected to the comprehensive monitoring module; the comprehensive monitoring module is used to centrally display and store the real-time water level, the rising speed of the water level, the early warning signal and the stroke of the actuator, and provide network time synchronization information to the control module.
[0011] Optionally, the control module and the integrated monitoring module use optical fiber ring network redundant communication and MODBUSTCP protocol.
[0012] Optionally, a shielding module is further included; the shielding module is used to shield the signal connection between the control module and the actuator when a power outage or electrical failure occurs in the subway flood prevention door control system.
[0013] Optionally, the number of connection nodes in the control system of the subway flood prevention door retains a margin of at least 20%.
[0014] As described above, the control system of the subway flood prevention door of the present application has at least the following beneficial effects:
[0015] The control system of the subway flood-proof door of the present application can remotely open, close and stop the flood-proof door through the remote control unit; can open, close and stop the flood-proof door locally through the local control unit; can control the decomposition action of the flood-proof door through the maintenance unit, and then can perform maintenance on the flood-proof door. The staff can not only control the flood-proof door remotely, but also control the flood-proof door locally, and can also conveniently perform maintenance on the flood-proof door, which greatly improves the convenience of subway flood-proof door control. And eliminates the safety hazard of being unable to control the flood-proof door when remote control is inconvenient or fails. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the control system structure of the subway flood prevention door according to the embodiment of the present application. DETAILED DESCRIPTION
[0017] The following describes the embodiments of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied by other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present application are to describe specific specific embodiments, rather than to limit the scope of protection of the present application. The test methods for which specific conditions are not indicated in the following examples are usually according to conventional conditions, or according to the conditions recommended by each manufacturer.
[0018] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the effects that can be produced by this application and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial change in the technical content.
[0019] Please refer to Figure 1, the present application discloses a control system for subway flood prevention doors. It includes a control module. The control module includes a remote control unit, an on-site control unit and a maintenance unit. The remote control unit, the on-site control unit and the maintenance unit are all connected to the actuator that controls the opening and closing of the flood prevention door, and when any one of the three controls the actuator, the other two stop working. The remote control unit is set away from the actuator, and has a prohibited state and an allowed state, and can be switched between the prohibited state and the allowed state. When the remote control unit is in the prohibited state, human intervention is not allowed. When the remote control unit is in the allowed state, the remote control unit allows humans to control the actuator to open and close the flood prevention door through the remote control unit, or control the actuator to stop action through the remote control unit in an emergency. The on-site control unit is set at a position close to the actuator, and is used to control the opening and closing of the flood prevention door through the actuator on site. The maintenance unit is used to control the opening and closing of the flood prevention door through the actuator, detect the opening and closing action of the flood prevention door, and prevent the actuator from executing the program of automatically opening and closing the flood prevention door.
[0020] The control system of the subway flood prevention door of the present application can be integrated in a PLC control cabinet or other electrical control equipment. The present application describes its working principle by integrating it in a PLC control cabinet:
[0021] The PLC control cabinet is provided with a first knob, by rotating the first knob, the remote control unit, the local control unit and the maintenance unit can be switched, and it is ensured that only one of the remote control unit, the local control unit and the maintenance unit is in working state at the same time. The PLC control cabinet is provided with a first door opening button, a first door closing button and a first stop button.
[0022] In order to remotely control the actuator, the remote control unit is connected to the IBP panel (integrated backup panel), which is placed in the total control room of the subway station. The IPB panel is provided with a second door opening button, a second door closing button, and a second stop button. The IPB panel is provided with a second knob, and by rotating the second knob, the remote control unit can be switched between the prohibited state and the permitted state.
[0023] When it is necessary to remotely control the opening and closing of the flood-proof door, the staff must first confirm the accuracy of the alarm, that is, first confirm whether the water level at the subway track is indeed at risk. If the alarm is accurate, the staff needs to control the flood-proof door to close: turn the second knob at the IBP panel, switch the remote control unit to the allowed state, and then send a flood-proof door closing request signal to the remote control module through the IPB panel. After the remote control module receives the flood-proof door closing request signal, if the actuator can normally control the flood-proof door to close, it will feedback the flood-proof door closing signal to the IPB panel. After receiving the flood-proof door closing signal, the staff manually presses the second door closing button on the IPB panel, and the remote control module controls the actuator to execute the door closing procedure so that the flood-proof door is closed and locked. After the alarm is lifted, the staff manually presses the second door opening button, and the remote control module controls the actuator to execute the door opening procedure so that the flood-proof door is opened and locked.
[0024] If an emergency occurs during the execution of the door opening or closing procedure by the actuator, the staff can press the second stop button on the IBP panel, and then control the actuator to stop through the remote control module. After the emergency is eliminated, the staff can press the second stop button again to reset it, and then control the actuator to continue to execute the door opening or closing procedure through the remote control module.
[0025] When it is necessary to control the opening and closing of the flood-proof door on-site, the staff must first confirm the accuracy of the alarm. If the alarm is accurate, the staff needs to control the flood-proof door to close: first, by turning the first knob, switch the control module to only work with the local control unit. Then send a flood-proof door closing request signal to the local control unit through the PLC control cabinet. After the remote control module receives the flood-proof door closing request signal, if the actuator can normally control the flood-proof door to close, it will feedback the signal allowing the flood-proof door to be closed to the PLC control cabinet. After receiving the signal allowing the flood-proof door to be closed, the staff manually presses the first door closing button on the PLC control cabinet, and the remote control module controls the actuator to execute the door closing procedure so that the flood-proof door is closed and locked. After the alarm is lifted, the staff manually presses the first door opening button, and the remote control module controls the actuator to execute the door opening procedure so that the flood-proof door is opened and locked.
[0026] If an emergency occurs during the execution of the door opening or closing procedure by the actuator, the staff can press the first stop button on the PLC control cabinet, and then control the actuator to stop through the remote control module. After the emergency is eliminated, the staff can press the first stop button again to reset it, and then control the actuator to continue to execute the door opening or closing procedure through the remote control module.
[0027] When the flood-proof door needs to be inspected, the staff first turns the first knob to switch the control module to only the inspection unit. Then the staff opens and closes the locking device of the flood-proof door to test whether the locking device is normal, and closes and opens the flood-proof door through the first door closing button and the first door opening button on the PLC control cabinet to test whether the flood-proof door is normal. The flood-proof door and other components can also be inspected and maintained, which will not be repeated here.
[0028] It should be noted that after the maintenance work is completed, the staff needs to switch the control module to a state where only the remote control unit works, so as to facilitate the subsequent normal remote control of the flood control door.
[0029] When the power supply system fails or the control system of the subway flood-proof door of the present application fails and the flood-proof door needs to be closed, the staff will disconnect the main switch of the PLC control cabinet and then manually close the flood-proof door.
[0030] The control system of the subway flood prevention door of the present application also includes a water level detection module. The water level monitoring module is in communication connection with the control module. The water level monitoring module includes a plurality of water level sensors. The plurality of water level sensors are arranged at different heights along the vertical direction, and are used to monitor the real-time water level and the rising speed of the water level at the subway track in real time, and send an early warning signal to the control module when the real-time water level and the rising speed of the water level exceed a predetermined value.
[0031] Specifically, the water level sensor includes a first sensor, a second sensor, a third sensor and a fourth sensor. Among them, the first sensor is arranged 100mm below the bottom surface of the subway track. The second sensor is 100mm higher than the first sensor. The third sensor is 100mm higher than the second sensor. The fourth sensor is 100mm higher than the third sensor. The early warning signal is divided into a primary early warning signal and a secondary early warning signal. When the water level reaches the height of the first sensor, the water level monitoring module sends a primary early warning signal to the control module. When the water level reaches the height of the fourth sensor, or the water level is between the first sensor and the fourth sensor but the water level rise speed exceeds a predetermined value (for example, 10mm / min), the water level monitoring module sends a secondary early warning signal to the control module.
[0032] More specifically, the number of the first sensor, the second sensor, the third sensor, and the fourth sensor are all three. That is, three water level sensors are set at the same height. When one of the three water level sensors at the same height fails, in order to ensure that the water level information is not missed, the water level information measured by the other two water level sensors at the same height is reported. When two water level sensors at different heights both detect the water level, the water level information measured by the water level sensor with the higher water level height is reported, and a water level sensor failure is prompted.
[0033] Through the cooperation of the water level monitoring module and the control module, the control module can control the anti-flood door more accurately, reducing the situation of the anti-flood door being opened or closed by mistake.
[0034] The control system of the subway flood prevention door of the present application also includes a stroke detection module. The stroke detection module is communicatively connected to the control module. The stroke detection module includes a stroke switch. The stroke switch is connected to the actuator and is used to detect whether the actuator has been fully actuated. In some other embodiments of the present application, the stroke detection module may also include other sensors such as position sensors. The stroke detection module detects whether the actuator has been fully actuated to ensure that the flood prevention door is fully opened or closed, thereby ensuring that the flood prevention door will not hinder the subway from passing through the flood prevention door when it is opened, and ensuring that the flood prevention door has a good flood prevention effect when it is closed. When the stroke detection module detects that the actuator has not been fully actuated, a fault signal is promptly issued to remind the staff to inspect the actuator and the flood prevention door.
[0035] Please continue to refer to Figure 1 The control system of the subway flood prevention door of the present application also includes a comprehensive monitoring module. The comprehensive monitoring module is used to centrally display and store the real-time water level, the rising speed of the water level, the early warning signal and the travel of the actuator, and provide network time synchronization information to the control module. The ISCS system (Integrated Monitoring System for Urban Rail Transit) is deployed in the comprehensive monitoring module. The water level monitoring module and the travel detection module are both communicatively connected to the comprehensive monitoring module. The water level monitoring module can upload the detected water level information to the comprehensive monitoring module. The travel detection module uploads the various action states of the flood prevention door to the comprehensive monitoring module.
[0036] The control module and the integrated monitoring module use optical fiber ring network redundant communication. More specifically, the control module and the integrated monitoring module use MODBUS TCP protocol for communication. MODBUS TCP protocol has the advantage of high transmission speed, which can improve the real-time performance of the integrated monitoring module display and transmission information. MODBUS TCP protocol itself has a reliable transmission and error recovery mechanism, so it also has good reliability and stability, which is conducive to ensuring the monitoring effect of the integrated monitoring module.
[0037] When the control system of the subway flood-proof door of the present application is powered off or has an electrical failure, the signal transmitted inside it will become unreliable. In order to ensure the safety of the subway and the flood-proof door, the control system of the subway flood-proof door of the present application also includes a shielding module. The shielding module is used to shield the signal connection between the control module and the actuator when the subway flood-proof door control system is powered off or has an electrical failure.
[0038] Specifically, a selection switch is provided on the PLC control cabinet, and by turning the switch, the control system of the subway flood-proof door can be switched between the start state and the shielding state. When the control system of the subway flood-proof door is switched to the shielding state, the control module cannot perform any operation on the flood-proof door.
[0039] In addition, the number of connection nodes in the control system of the subway flood prevention door of the present application has at least a 20% margin. The connection nodes include power switches, terminal blocks, intermediate relays, PLC backplane slots and other components used to connect two components. At least 20% of the margin means that at least 20% of the connection nodes are unused, which facilitates the subsequent expansion of the control system of the subway flood prevention door of the present application and improves its scalability.
[0040] The control system of the subway flood-proof door of the present application can remotely open, close and stop the flood-proof door through the remote control unit; can open, close and stop the flood-proof door locally through the local control unit; can control the decomposition action of the flood-proof door through the maintenance unit, and then can perform maintenance on the flood-proof door. The staff can not only control the flood-proof door remotely, but also control the flood-proof door locally, and can also conveniently perform maintenance on the flood-proof door, which greatly improves the convenience of subway flood-proof door control. And eliminates the safety hazard of being unable to control the flood-proof door when remote control is inconvenient or fails.
[0041] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.
Claims
1. A control system for subway flood prevention doors, characterized in that: It comprises a control module; the control module comprises a remote control unit, an on-site control unit and a maintenance unit; the remote control unit, the on-site control unit and the maintenance unit are all connected in communication with an actuator for controlling the opening and closing of the flood prevention door, and when any one of the three controls the actuator, the other two will stop working; The remote control unit is arranged far away from the actuator, has a prohibition state and an enabling state, and can be switched between the prohibition state and the enabling state; When the remote control unit is in a prohibited state, human intervention is not allowed; when the remote control unit is in an allowed state, the remote control unit allows humans to control the actuator to open and close the flood prevention door through the remote control unit, or control the actuator to stop action through the remote control unit in an emergency; The local control unit is arranged at a position close to the actuator, and is used to control the opening and closing of the flood prevention door through the actuator locally; The inspection unit is used to control the opening and closing of the anti-flood door through the actuator, detect the opening and closing action of the anti-flood door, and prevent the actuator from executing the program of automatically opening and closing the anti-flood door.
2. The control system of subway flood prevention door according to claim 1, characterized in that: It also includes a water level monitoring module; the water level monitoring module is communicatively connected with the control module; The water level monitoring module includes multiple water level sensors; the multiple water level sensors are arranged at different heights along the vertical direction, and are used to monitor the real-time water level and the rising speed of the water level at the subway track in real time, and when the real-time water level and the rising speed of the water level exceed predetermined values, an early warning signal is sent to the control module.
3. The control system of subway flood prevention door according to claim 2, characterized in that: The water level sensor includes a first sensor, a second sensor, a third sensor and a fourth sensor; wherein, The first sensor is arranged 100 mm below the bottom surface of the subway track; the second sensor is 100 mm higher than the first sensor; the third sensor is 100 mm higher than the second sensor; and the fourth sensor is 100 mm higher than the third sensor.
4. The control system of subway flood prevention door according to claim 2, characterized in that: It also includes a stroke detection module; the stroke detection module is communicatively connected with the control module; The travel detection module includes a travel switch; the travel switch is connected to the actuator and is used to detect whether the actuator has moved into place.
5. The control system of subway flood prevention door according to claim 4, characterized in that: It also includes a comprehensive monitoring module; The water level monitoring module and the stroke detection module are both in communication connection with the comprehensive monitoring module; The integrated monitoring module is used to centrally display and store the real-time water level, the rising speed of the water level, the warning signal and the stroke of the actuator, and provide network time synchronization information to the control module.
6. The control system of subway flood prevention door according to claim 5, characterized in that: The control module and the integrated monitoring module use optical fiber ring network redundant communication.
7. The control system of subway flood prevention door according to claim 1, characterized in that: Also included is a shielding module; The shielding module is used to shield the signal connection between the control module and the actuator when a power outage or electrical failure occurs in the subway flood prevention door control system.
8. The control system of subway flood prevention door according to claim 1, characterized in that: The number of connection nodes in the control system of the subway flood prevention door has at least a 20% margin.