Landing door unlocking control device and method for vertical hinged door elevator

Abstract

The invention provides a landing door unlocking control device and method for a side hung door elevator, which can realize real-time monitoring and abnormity judgment and handling, also realize accurate control of the unlocking process of a landing door and improve the safety and reliability of elevator operation, and comprises a main control unit and a sub-control unit, the sub-control units are arranged at the landing door positions of all floors respectively, the sub-control units are connected with the main control unit, and the sub-control units are connected with door position switches which are installed on the landing door sides of all the floors of an elevator and used for detecting whether the elevator runs to the corresponding floors or not; the unlocking device is used for controlling a landing door lock to be opened; the sub-control units communicate with the main control unit in real time, when the elevator runs to a target physical floor, the main control unit communicates with the sub-control unit of the corresponding floor to send an unlocking instruction, and when the sub-control unit of the corresponding floor receives the unlocking instruction and the door position switch detects that the elevator runs to the corresponding floor, the unlocking device is triggered to unlock.

Description

Technical Field

[0001] The invention relates to the technical field of elevator control, and in particular to a hall door unlocking control device and method for a swing door elevator. Background Art

[0002] A swing door home elevator is an elevator that has only a hall door but no car door. The current method for unlocking the hall door is that the elevator control cabinet sends an unlock signal and passes through the serially connected position switch to unlock the hall door on the floor where the elevator car is located, so that passengers can open the hall door to enter or leave the car.

[0003] This unlocking control method relies heavily on the position switch and lacks detection of whether the position switch is working properly. If the position switch is always in the state of unsuccessful detection, it will cause the problem of not being able to unlock when needed; if the position switch is always in the state of successful detection, it will cause the problem of the hall door unlocking device on the floor where the car is not located to be opened. If the passenger accidentally opens the hall door on that floor without paying attention, there is a possibility of a safety accident of falling into the elevator shaft. Summary of the invention

[0004] In view of the above problems, the present invention provides a hall door unlocking control device and method for a swing-door elevator, which can realize real-time monitoring and abnormal judgment and disposal, realize precise control of the hall door unlocking process, and improve the safety and reliability of elevator operation.

[0005] The technical solution is as follows: a hall door unlocking control device for a swing door elevator, comprising:

[0006] A main control unit, wherein the main control unit is arranged in an elevator control cabinet;

[0007] Sub-control units, which are respectively arranged at the hall door positions of each floor, are connected to the main control unit, and are connected to:

[0008] Door position switch, which is installed on the hall door side of each floor of the elevator and is used to detect whether the elevator has run to the corresponding floor;

[0009] Unlocking device, used to control the hall door lock to open;

[0010] The sub-control unit communicates with the main control unit in real time. When the elevator runs to the target physical floor, the main control unit communicates with the sub-control unit on the corresponding floor and sends an unlocking instruction. When the sub-control unit on the corresponding floor receives the unlocking instruction and the door position switch detects that the elevator runs to the corresponding floor, the unlocking device is triggered to unlock.

[0011] Furthermore, the unlocking device comprises:

[0012] Unlocking motor, used to receive instructions to unlock the door lock;

[0013] Lock limit switch, used to control the degree of door lock closing;

[0014] Unlock limit switch, used to control the degree of door lock opening;

[0015] The hall door lock switch 404 is used to detect the door lock state.

[0016] Furthermore, the sub-control unit includes a sub-control board, a P1 port of the sub-control board is connected to the serial port of the main control unit through a 485 bus, a P2 port of the sub-control board is connected to an external call interface, a P3 port of the sub-control board is connected to the unlocking motor, a P4 port of the sub-control board is connected to a locking limit switch and an unlocking limit switch, and a P5 port of the sub-control board is connected to a door position switch.

[0017] Furthermore, it also includes a hall door fully closed switch, and the hall door fully closed switch is connected to the main control unit.

[0018] A hall door unlocking control method for a swing door elevator is implemented based on the above-mentioned hall door unlocking control device for a swing door elevator, comprising the steps of:

[0019] Each sub-control unit is assigned a unique ID address. The sub-control unit detects the status of the position switch in real time and reports it to the main control unit. When the elevator runs to the target physical floor and the position switch detects the elevator, the status of the position switch is valid, otherwise the status of the position switch is invalid.

[0020] When the elevator runs to the target physical floor, the main control unit communicates with the sub-control unit on the corresponding floor to send an unlocking command, and the sub-control unit triggers the unlocking device to unlock when receiving the unlocking command and the position switch signal of the door position switch is valid;

[0021] The main control unit makes abnormal judgments and takes measures based on the physical address of the elevator operation and the position switch status reported by the sub-control unit.

[0022] Furthermore, the main control unit makes an abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including:

[0023] If the position switch of the target physical floor is in an invalid state, the unlocking device of the corresponding floor will not operate. The main control unit controls the elevator to change stations and stop at the next floor. The sub-control unit on the next floor triggers the unlocking device of the next floor to unlock when it receives the unlocking command and the door position switch detects that the elevator has run to the next floor.

[0024] Furthermore, the main control unit makes an abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including:

[0025] The valid position switch is timed. When the valid state of the position switch continues to exceed the set threshold, a prohibition of unlocking command is issued, and a fault stop is triggered, and maintenance personnel are notified to come for inspection.

[0026] Furthermore, the main control unit makes an abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including:

[0027] When the communication between the sub-control unit and the main control unit on one floor fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection.

[0028] Furthermore, the main control unit makes an abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including:

[0029] When the unlocking motor fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection.

[0030] Furthermore, the method also includes: setting the status of the location switch of the non-target physical floor to invalid.

[0031] The hall door unlocking control device for swing door elevators of the present invention allocates a unique ID address to the sub-control unit of each floor, ensures that the elevator control cabinet can accurately send unlocking instructions to the designated floor, avoids possible misoperation in the traditional system, and sets the state of the position switch to be monitored in real time by the sub-control unit, enhances the perception ability of the elevator control cabinet main control unit of the elevator working state, timely discovers and handles potential faults, and improves the overall stability of the elevator operation; the hall door unlocking control method for swing door elevators of the present invention proposes an effective detection mechanism and emergency measures for the failure of the position switch. If the position switch is in an abnormal state for a long time in an effective state, the elevator will automatically skip the floor to prevent passengers from having safety accidents due to misoperation. The position switch of the non-target physical floor is always set to invalid to avoid the risk of accidental opening of the hall door of the non-target floor. For the failure of the sub-control unit or the unlocking motor, corresponding protection measures are also designed to ensure that as long as there is a component failure on a certain floor, the faulty floor is avoided to maximize the personal safety of passengers. The method of the present invention realizes a detection and response mechanism corresponding to various abnormal situations, realizes an automated fault response, and can take action to transfer to other safe floors at the first time, reduce the possibility of passengers being trapped, and improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a block diagram of a hall door unlocking control device for a swing door elevator of the present invention;

[0033] Figure 2 It is a circuit connection diagram of a hall door unlocking control device for a swing door elevator of the present invention;

[0034] Figure 3 Schematic diagram of a sub-control unit arranged on the 1st floor in the embodiment;

[0035] Figure 4 The figure is a schematic diagram of the steps of a hall door unlocking control method for a swing door elevator in an embodiment. DETAILED DESCRIPTION

[0036] See Figure 1 , 2. A hall door unlocking control device for a swing door elevator of the present invention comprises

[0037] A main control unit 100, which is arranged in an elevator control cabinet;

[0038] Sub-control units 200 are respectively arranged at the hall door positions of each floor. Sub-control units 200 are connected to the main control unit 100. Sub-control units 200 are connected with:

[0039] Door position switch 300, which is installed on the hall door side of each floor of the elevator, is used to detect whether the elevator has reached the corresponding floor. The door position switch 300 is a detection switch installed on the hall door side of each floor of the elevator. When the elevator reaches the floor, the door position switch 300 on the floor is actuated to indicate that the elevator has stopped at the floor.

[0040] The unlocking device 400 is used to control the hall door lock to open. The hall door of the elevator is usually in a physically locked state. The hall door lock can be controlled to open through the unlocking device, and passengers can open the hall door to enter or leave the car. The elevator can only run up and down after the hall door is closed and confirmed to be physically locked;

[0041] When the elevator runs to the target physical floor, the main control unit 100 communicates with the sub-control unit 200 on the corresponding floor to send an unlocking command. When the sub-control unit 200 on the corresponding floor receives the unlocking command and the door position switch 300 detects that the elevator runs to the corresponding floor, the unlocking device 400 is triggered to unlock.

[0042] In one embodiment, the unlocking device 400 includes:

[0043] Unlocking motor 401, used to receive instructions to unlock the door lock;

[0044] The lock limit switch 402 defines the limit position of the door lock, and is used to control the degree of the door lock closing;

[0045] Unlock limit switch 403, the unlock limit switch 403 defines the limit of the door lock opening, and is used to control the degree of the door lock opening;

[0046] The hall door lock switch 404 is used to detect the door lock state. When the hall door is closed and locked by the mechanical locking mechanism, the hall door lock switch will be triggered to send a signal to the main control unit, indicating that the hall door has been closed and locked, ensuring that the hall door will not be accidentally opened during the operation of the elevator, providing safety protection. The coordinated use of various components in the unlocking device 400 ensures the precise control of the door lock.

[0047] See Figure 2 ,3. Taking floor 1 as an example, in one embodiment, the sub-control unit 200 is set as a sub-control panel for controlling unlocking on each floor, and a unique ID address is assigned. The P1 port of the sub-control panel is connected to the serial port of the main control unit 100 through the 485 bus, the P2 port of the sub-control panel is connected to the outbound call interface, the P3 port of the sub-control panel is connected to the unlocking motor 401, the P4 port of the sub-control panel is connected to the locking limit switch 402 and the unlocking limit switch 403, and the P5 port of the sub-control panel is connected to the door position switch. Each elevator floor is equipped with an independent sub-control panel with a clear ID address, which is convenient for management and maintenance, and also improves the scalability and flexibility of the system. The 485 serial communication method is adopted to ensure that the data transmission between the elevator control cabinet and the sub-control panel on each floor is stable and reliable.

[0048] The hall door unlocking control device for a swing door elevator in the implementation also includes a hall door closing position switch 500, which is connected to the main control unit 100. Figure 2 Only the hall door fully closed switch 500 is given, and the part of the main control unit to which the hall door fully closed switch 500 is connected is omitted; the hall door fully closed switch 500, when the hall door is closed and reaches the preset position, will be triggered to send a signal to the main control unit, indicating that the hall door has been fully closed, ensuring that the hall door can provide a sufficient safety barrier in the closed state to prevent passengers from accidentally entering the shaft during the movement of the elevator.

[0049] The hall door unlocking control device for swing door elevators in the embodiment is suitable for various models of swing door home elevators and can be upgraded without large-scale modification of the elevators, so that the device has high adaptability and flexibility and can meet the needs of different home users.

[0050] See Figure 4In one embodiment of the present invention, a hall door unlocking control method for a swing door elevator is further provided, which is implemented based on the hall door unlocking control device for a swing door elevator in the above embodiment, and comprises the steps of:

[0051] Step S1: Assign a unique ID address to each sub-control unit. The sub-control unit detects the status of the position switch in real time and reports it to the main control unit. When the elevator runs to the target physical floor and the position switch detects the elevator, the status of the position switch is valid, otherwise the status of the position switch is invalid.

[0052] Step S2: When the elevator runs to the target physical floor, the main control unit communicates with the sub-control unit on the corresponding floor to send an unlocking command. When the sub-control unit receives the unlocking command and the position switch signal of the door position switch is valid, the unlocking device is triggered to unlock;

[0053] Step S3: The main control unit makes an abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit.

[0054] In one embodiment, when allocating ID addresses in step S1, the sub-control unit installed on the physical address 1 floor may be set to address 1, the sub-control unit installed on the physical address 2 floor may be set to address 2, and so on. The sub-control unit on each floor detects the position switch installed on that floor. The physical address refers to the name of the station number where the elevator runs. For example, when the elevator runs to the first floor, it is called physical address 1; when the elevator runs to the second floor, it is called physical address 2, and so on. The target physical address is the physical floor to be reached. In addition, in step S1, the status of the position switch on the non-target physical floor can be set to invalid to improve safety.

[0055] In step S2 of one embodiment, the sub-control boards of all sub-control units communicate with the elevator control cabinet via 485 serial communication. When the elevator runs to the physical floor 1, the elevator control cabinet only sends an unlocking command to the sub-control board with ID address 1. When the sub-control unit receives the unlocking command and the position switch signal is valid, it triggers the door lock device to unlock, and the passengers can open the hall door to enter or leave the car.

[0056] In step S3 of one embodiment, the main control unit makes an abnormality judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including:

[0057] Abnormal situation 1: If the position switch of the target physical floor is in an invalid state, the unlocking device of the corresponding floor does not operate, and the main control unit controls the elevator to change stations and stop at the next floor. The sub-control unit on the next floor receives the unlocking command and the door position switch detects that the elevator has run to the next floor, which triggers the unlocking device on the next floor to unlock.

[0058] Abnormal situation 2: The valid position switch is timed. When the valid state of the position switch continues to exceed the set threshold, a prohibition of unlocking command is issued, and a fault stop is triggered, and maintenance personnel are notified to come for inspection.

[0059] Abnormal situation 3: When the communication between the sub-control unit and the main control unit fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection. When the sub-control unit on the next floor receives the unlocking command and the door position switch detects that the elevator has run to the next floor, it triggers the unlocking device on the next floor to unlock.

[0060] Abnormal situation 4: When the unlocking motor of the target physical floor fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection. When the sub-control unit on the next floor receives the unlocking command and the door position switch detects that the elevator has run to the next floor, it triggers the unlocking device on the next floor to unlock.

[0061] The hall door unlocking control method for swing door elevators in the embodiment is adopted, and the position switch status is monitored in real time through the coordinated work of the main control unit and the sub-control unit. For swing door elevators, the unlocking failure or wrong unlocking caused by the position switch failure is effectively avoided, and the risk of passengers accidentally falling into the elevator shaft due to misoperation or elevator failure can be reduced, which significantly improves the safety of elevator use and provides higher safety protection for home users; the main control unit can make abnormal judgments and handle them according to the position switch status fed back by the sub-control unit, and take corresponding treatment measures, including changing stations and prohibiting unlocking, etc., to enhance the reliability of the entire elevator system; the main control unit can also monitor the working status of the sub-control unit in real time, including the validity of the position switch and the running status of the unlocking motor. Once an abnormality is detected, the main control unit will trigger a fault stop and notify the maintenance personnel to come to the door for inspection, making the maintenance and maintenance of the elevator more convenient, and can timely discover and solve potential safety hazards. The maintenance personnel can quickly locate the source of the fault and improve the maintenance efficiency.

[0062] The method of the present invention is used to accurately control the unlocking device, so that the hall door can be opened quickly and accurately when the elevator reaches the target floor, providing passengers with a smooth elevator riding experience.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hall door unlocking control device for a swing door elevator, comprising: A main control unit, wherein the main control unit is arranged in an elevator control cabinet; The sub-control unit is characterized in that: the sub-control unit is respectively arranged at the hall door position of each floor, the sub-control unit is connected to the main control unit, and the sub-control unit is connected to: Door position switch, which is installed on the hall door side of each floor of the elevator and is used to detect whether the elevator has run to the corresponding floor; Unlocking device, used to control the hall door lock to open; The sub-control unit communicates with the main control unit in real time. When the elevator runs to the target physical floor, the main control unit communicates with the sub-control unit on the corresponding floor and sends an unlocking instruction. When the sub-control unit on the corresponding floor receives the unlocking instruction and the door position switch detects that the elevator runs to the corresponding floor, the unlocking device is triggered to unlock.

2. A hall door unlocking control device for a swing door elevator according to claim 1, characterized in that: The unlocking device comprises: Unlocking motor, used to receive instructions to unlock the door lock; Lock limit switch, used to control the degree of door lock closing; Unlock limit switch, used to control the degree of door lock opening; Hall door lock switch, used to detect door lock status.

3. A hall door unlocking control device for a swing door elevator according to claim 2, characterized in that: The sub-control unit includes a sub-control board, a P1 port of the sub-control board is connected to the serial port of the main control unit via a 485 bus, a P2 port of the sub-control board is connected to an outbound call interface, a P3 port of the sub-control board is connected to the unlocking motor, a P4 port of the sub-control board is connected to a locking limit switch and an unlocking limit switch, and a P5 port of the sub-control board is connected to a door position switch.

4. The hall door unlocking control device for a swing door elevator according to claim 1, characterized in that: Also includes: A hall door fully closed switch, wherein the hall door fully closed switch is connected to the main control unit.

5. A hall door unlocking control method for a swing door elevator, implemented based on the hall door unlocking control device for a swing door elevator according to any one of claims 1 to 4, characterized in that: Includes steps: Each sub-control unit is assigned a unique ID address. The sub-control unit detects the status of the position switch in real time and reports it to the main control unit. When the elevator runs to the target physical floor and the position switch detects the elevator, the status of the position switch is valid, otherwise the status of the position switch is invalid. When the elevator runs to the target physical floor, the main control unit communicates with the sub-control unit on the corresponding floor to send an unlocking command, and the sub-control unit triggers the unlocking device to unlock when receiving the unlocking command and the position switch signal of the door position switch is valid; The main control unit makes abnormal judgments and takes measures based on the physical address of the elevator operation and the position switch status reported by the sub-control unit.

6. A hall door unlocking control method for a swing door elevator according to claim 5, characterized in that: The main control unit makes abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including: If the position switch of the target physical floor is in an invalid state, the unlocking device of the corresponding floor will not operate. The main control unit controls the elevator to change stations and stop at the next floor. The sub-control unit on the next floor triggers the unlocking device of the next floor to unlock when it receives the unlocking command and the door position switch detects that the elevator has run to the next floor.

7. A hall door unlocking control method for a swing door elevator according to claim 5, characterized in that: The main control unit makes abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including: The valid position switch is timed. When the valid state of the position switch continues to exceed the set threshold, a prohibition of unlocking command is issued, and a fault stop is triggered, and maintenance personnel are notified to come for inspection.

8. A hall door unlocking control method for a swing door elevator according to claim 5, characterized in that: The main control unit makes abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including: When the communication between the sub-control unit and the main control unit on one floor fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection.

9. A hall door unlocking control method for a swing door elevator according to claim 5, characterized in that: The main control unit makes abnormal judgment and takes measures according to the physical address of the elevator operation and the position switch status reported by the sub-control unit, including: When the unlocking motor fails, the unlocking device on the corresponding floor cannot unlock, and the elevator is automatically triggered to change stations and stop at the next floor for unlocking detection.

10. A hall door unlocking control method for a swing door elevator according to claim 5, characterized in that: Set the status of the location switch of the non-target physical floor to invalid.

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