Elevator brake release method, control device, computer equipment and storage medium

Abstract

The present application relates to an elevator brake release method, control device, computer equipment, and storage medium. The method is applied to a safety device; the safety device is used to connect the elevator motor, main control module, brake power module, and brake device respectively; the safety device is also used to connect the safety circuit and door lock circuit respectively; the safety device includes at least one trigger switch and a connecting switch arranged between the brake device and the brake power module; the method includes: if a disconnect signal from the safety circuit is received, the output torque of the elevator motor is cut off and the connecting switch is disconnected; if an electric brake release switching instruction is obtained when a closing signal from the door lock circuit is received, the electric brake release state is entered; if the duration of the electric brake release state reaches a first preset time, and no signal or instruction output by each trigger switch is obtained within the first preset time, the safety state is entered. The use of this method can improve the safety of elevator brake release.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to an elevator brake releasing method, a control device, a computer device, and a storage medium. Background Art

[0002] Traditional elevator brake release solutions primarily rely on manually switching the brake power line to achieve normal brake control and electric brake release. For example, when the elevator's safety circuit and door lock circuit are functioning properly, the main control module controls the elevator's brake power supply and contactor to open and close the brake device. If the safety circuit or door lock fails, the brake power output can be manually controlled by manually switching the brake power line.

[0003] However, the current elevator brake release method or traditional method has problems such as relying on the operator's experience and being prone to misoperation, resulting in low safety. Summary of the Invention

[0004] Based on this, it is necessary to provide an elevator brake release method, control device, computer equipment, computer-readable storage medium and computer program product that can improve safety in response to the above technical problems.

[0005] In a first aspect, the present application provides an elevator brake releasing method, which is applied to a safety device; the safety device is respectively used to connect an elevator motor, a main control module, a brake power supply module, and a brake device; the safety device is also used to connect a safety circuit and a door lock circuit respectively; the safety device includes at least one trigger switch and a connection switch provided between the brake device and the brake power supply module; the method includes:

[0006] If a disconnect signal from the safety circuit is received, the output torque of the elevator motor is cut off and the connection switch is disconnected;

[0007] If a release switch instruction is obtained when a closing signal of the door lock circuit is received, the electric release state is entered and a current state signal is output to the main control module; the release switch instruction includes instructions generated by each trigger switch according to the first preset timing action;

[0008] If the duration of the electric release state reaches the first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module.

[0009] In one embodiment, the method further comprises:

[0010] If the duration of the electric release state is less than the first preset time, a release signal is obtained, the output torque of the elevator motor is cut off, and the connecting switch is closed; the release signal is a signal generated by the closure of each trigger switch;

[0011] If the time for continuously receiving the brake release signal reaches a second preset time, the system enters a safe state and outputs a current state signal to the main control module.

[0012] In one embodiment, the method further comprises:

[0013] When the output torque of the elevator motor is cut off and the connection switch is disconnected, if the electric brake switching instruction is obtained, the electric brake state is entered and the current state signal is output to the main control module;

[0014] When a disconnect signal from the door lock circuit is received, if the duration of the electric release state reaches a first preset time and no signal or instruction from the trigger switch output is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module.

[0015] In one embodiment, the method further comprises:

[0016] If the duration of the electric release state is less than the first preset time, an emergency release switching instruction is obtained, the emergency release state is entered, and the current state signal is output to the main control module; the emergency release switching instruction includes instructions generated by each trigger switch according to the second preset timing action;

[0017] If the duration of the emergency release state reaches the third preset time and no signal or instruction output by each trigger switch is obtained within the third preset time, the safe state is entered and the current state signal is output to the main control module.

[0018] In one embodiment, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a second preset time sequence; and the method further includes:

[0019] If the duration of the emergency release state is less than the third preset time, a release signal is obtained, cutting off the output torque of the elevator motor and closing the connection switch;

[0020] If the time for continuously receiving the brake release signal reaches a fourth preset time, the system enters a safe state and outputs a current state signal to the main control module.

[0021] In one embodiment, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a second preset time sequence; and the method further includes:

[0022] When the duration of the electric release state is less than the first preset time, if the disconnection signal of the door lock circuit is not received, then when the duration of the electric release state reaches the first preset time, the vehicle enters the safe state and outputs the current state signal to the main control module;

[0023] If the duration of the electric brake release state is less than the first preset time, a brake release signal is obtained, the output torque of the elevator motor is cut off, and the connection switch is closed;

[0024] If the time for continuously receiving the brake release signal reaches a second preset time, the system enters a safe state and outputs a current state signal to the main control module.

[0025] In a second aspect, the present application provides an elevator brake release control device, which is applied to a safety device; the safety device is respectively used to connect the elevator motor, the main control module, the brake power module and the brake device; the safety device is also used to connect the safety circuit and the door lock circuit respectively; the safety device includes at least one trigger switch and a connection switch provided between the safety device and the brake power module; the control device includes:

[0026] A switch action module is used to cut off the output torque of the elevator motor and disconnect the connection switch if a disconnect signal from the safety circuit is received;

[0027] The electric brake release module is configured to enter the electric brake release state upon receiving a disconnect signal from the door lock circuit and obtaining an electric brake release switching instruction, and output a current state signal to the main control module; the electric brake release switching instruction includes instructions generated by each trigger switch operating according to a first preset timing sequence;

[0028] The safety state module is used to enter the safety state if the duration of the electric release state reaches a first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, and output the current state signal to the main control module.

[0029] In a third aspect, the present application provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0030] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above method when the computer program is executed by a processor.

[0031] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which implements the steps of the above method when executed by a processor.

[0032] The above-mentioned elevator release method, control device, computer equipment, computer-readable storage medium and computer program product, if the safety device receives a disconnection signal from the safety circuit, the safety device cuts off the output torque of the elevator motor and disconnects the connection switch; if the safety device receives a closing signal from the door lock circuit, the safety device obtains an electric release switching instruction, enters the electric release state, and outputs the current state signal to the main control module; wherein, the electric release switching instruction requires each trigger switch to operate according to a first preset timing to be generated, which can effectively avoid false triggering; after switching, it is also necessary to continue the operation to turn on the brake power line, and even if it is triggered by mistake, the power line will not be always connected; if the duration of the electric release state of the safety device reaches the first preset time, it enters the safe state, and outputs the current state signal to the main control module, which is convenient for operation. The electric release of the elevator is achieved by switching the signal. The safety device is cost-effective and maintainable, and at the same time improves the safety during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Circuit schematic diagram for traditional solution application;

[0034] Figure 2 1 is a flow chart of an elevator brake releasing method according to an embodiment;

[0035] Figure 3 A circuit schematic diagram of an elevator brake release method according to an embodiment;

[0036] Figure 4 A circuit schematic diagram of an elevator brake release method according to another embodiment;

[0037] Figure 5 1. A schematic flow chart of an elevator brake release step in one embodiment;

[0038] Figure 6 The figure is a flowchart of an elevator brake release method in an example;

[0039] Figure 7 1. It is a flowchart of the elevator brake release step in another embodiment;

[0040] Figure 8 1 is a flow chart of an elevator brake release step in another embodiment;

[0041] Figure 9 A schematic flow chart of an elevator brake release step in yet another embodiment;

[0042] Figure 10 A schematic flow chart of an elevator brake release step in one embodiment;

[0043] Figure 11 1 is a flow chart of an elevator brake releasing method in another example;

[0044] Figure 12 is a schematic structural diagram of a safety device in one embodiment;

[0045] Figure 13 A schematic structural diagram of a safety device in another embodiment;

[0046] Figure 14 1 is a structural block diagram of an elevator brake release control device in one embodiment;

[0047] Figure 15 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0049] like Figure 1 The figure below shows the connections between the various devices and modules in a traditional elevator electric brake release solution. Traditional solutions use switches or connectors to directly switch the brake power line. In the figure, the STOP button (emergency stop) and FLS (Final Limit Switches) are located in the safety circuit, which can also include other switches such as overspeed switches. The DS (Door Switch) is located in the door lock circuit, which can also include a hall door lock safety switch. When both the safety and door lock circuits are normal, the main control module controls the brake power supply and contactor, respectively, to open and close the brake. If the safety circuit or door lock fails, the brake power line can be manually switched and the brake power output can be manually controlled. While the traditional switching operation is simple, it is prone to false triggering. The operation also lacks feedback and relies heavily on operator experience, resulting in poor safety.

[0050] In one embodiment, Figure 2As shown, a method for releasing the brake of an elevator is provided, and the method is applied to a safety device; the safety device is respectively used to connect the elevator motor, the main control module, the brake power module and the brake device; the safety device is also used to connect the safety circuit and the door lock circuit respectively; the safety device includes at least one trigger switch and a connection switch provided between the brake device and the brake power module; the method includes:

[0051] Step 210: If a disconnection signal from the safety circuit is received, the output torque of the elevator motor is cut off and the connection switch is disconnected;

[0052] Specifically, if Figure 3 As shown, the main control module is respectively connected to the brake power module and the safety device, and can control the brake power module and the safety device respectively; wherein, compared with the safety device in the traditional solution which is only implemented by electromechanical devices such as switches / circuit breakers, the safety device in this application can be implemented by electrical / electronic / programmable electronic components. The safety device is respectively connected to the brake power module and the brake device, and the safety device can control the on and off of the connection switch in a programmable manner to control the power supply of the brake device by the brake power module. The safety device is respectively connected to the safety circuit and the door lock circuit to access the safety circuit signal and the door lock circuit signal, wherein the safety circuit is the circuit where the STOP button (emergency stop button) and the FLS (Final Limit Switches) switch lock are located, and the door lock circuit is the circuit where the DS switch (Disconnector) is located. The safety circuit and the door lock circuit can input signals to the safety device in parallel. As shown Figure 4 As shown, the safety circuit and the door lock circuit can also be connected in series to input signals to the safety device. The safety device can include at least one trigger switch. Upon receiving a disconnect signal from the safety circuit, the safety device can cut off the output torque of the elevator motor and disconnect the connection switch between the brake device and the brake power module, thereby cutting off the power supply from the brake power module to the brake device.

[0053] In some examples, the safety device may include two or more trigger switches to reduce the complexity of operation and improve the fault tolerance of the instructions or signals generated by each trigger switch; for example, the safety device may include a first trigger switch and a second trigger switch, and the first trigger switch S1-2 of the safety device, the second trigger switch S2-2 of the safety device, the release switch S1-1 of the brake power module, and the release switch S2-1 of the brake power module can all be independent single-pole double-throw switches; since the present application changes the switching of the power line into signal switching compared to the traditional solution, the first trigger switch S1-2 of the safety device and the second trigger switch S2-2 of the safety device in the present application can be merged with the original release switch of the brake power supply. For example, the first trigger switch S1-2 of the safety device and the switch S1-1 of the brake power module can be two single-pole double-throw switches in the same double-pole double-throw switch or share different contacts of the same switch, and the second trigger switch S2-2 of the safety device and the switch S2-1 of the brake power module can be two single-pole double-throw switches in the same double-pole double-throw switch or share different contacts of the same switch.

[0054] Step 220: If an electric brake release switching instruction is obtained when a closing signal of the door lock circuit is received, the electric brake release state is entered and a current state signal is output to the main control module; the electric brake release switching instruction includes instructions generated by each trigger switch operating according to a first preset timing sequence;

[0055] Specifically, when the safety device receives a closing signal from the door lock circuit, it can be determined that the circuit of the hall door and floor door system is closed. If the safety device obtains an electric release switching instruction, the safety device can enter the electric release state, set the current state signal to the electric release state, and transmit the current state signal to the main control module; the electric release switching instruction can include instructions generated by each trigger switch according to a first preset timing. By operating each trigger switch according to the first preset timing, the above-mentioned electric release switching instruction can be generated.

[0056] Step 230: If the duration of the electric release state reaches the first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module.

[0057] Specifically, if the duration of the electric release state reaches a first preset time, and the safety device does not obtain the signal or instruction output by each trigger switch within the first preset time, indicating that the electric release state of the safety device has timed out, the safety device can enter a safe state, set the current state signal to a safe state, and transmit the current state signal to the main control module.

[0058] In some examples, if the duration of the electric brake release state does not reach the preset time and the safety device does not receive a brake release signal, the safety device continues to maintain the electric brake release state until a first preset time is reached.

[0059] In the embodiment of the present application, if the safety device receives a disconnect signal from the safety circuit, the safety device cuts off the output torque of the elevator motor and disconnects the connection switch; if the safety device receives a closing signal from the door lock circuit, the safety device obtains an electric release switching instruction, enters the electric release state, and outputs the current state signal to the main control module; wherein, the electric release switching instruction requires each trigger switch to operate according to a first preset timing to be generated, which can effectively avoid false triggering; after switching, it is also necessary to continue the operation to turn on the brake power line, and even if it is triggered by mistake, the power line will not be always connected; if the duration of the electric release state of the safety device reaches the first preset time, it enters the safe state, and outputs the current state signal to the main control module, which is convenient for operation. The electric release of the elevator is achieved by switching the signal. The safety device is cost-effective and maintainable, and at the same time improves the safety during operation.

[0060] In one embodiment, Figure 5 As shown, the method further includes:

[0061] Step 510: If a release signal is obtained when the duration of the electric release state is less than a first preset time, the output torque of the elevator motor is cut off and the connecting switch is closed; the release signal includes a signal generated by closing all trigger switches;

[0062] Step 520: If the time of continuously receiving the brake release signal reaches the second preset time, the safe state is entered and the current state signal is output to the main control module.

[0063] Specifically, if the safety device obtains a release signal when the duration of the safety device in the electric release state is less than the first preset time, the safety device can cut off the output torque of the elevator motor and close the connection switch between the brake device and the brake power module to turn on the power supply of the brake power module to the brake device; if the safety device continues to receive the release signal for a second preset time, the safety device times out when receiving the release signal, and the safety device enters a safe state, sets the current state signal to a safe state, and outputs the current state signal to the main control module.

[0064] In some examples, such as Figure 6As shown, when the safety device is in a normal state, it can determine whether the safety circuit is disconnected by receiving a signal from the safety circuit; when receiving a disconnection signal from the safety circuit, the safety device can cut off the output torque of the elevator motor and disconnect the power output of the brake power module to the brake device; the safety device can determine whether the hall door level system is disconnected by receiving a signal from the door lock circuit; when the safety device receives a disconnection signal from the door lock circuit, the output torque of the elevator motor is kept in a cut-off state, and the power output of the brake power module to the brake device is kept in a disconnected state; when the safety device receives a closing signal from the door lock circuit, if an electric brake release switching command is received, the safety device can enter the electric brake release state; if the safety device If the duration of the safety device being in the electric release state reaches a first preset time, the safety device can enter the safe state; if the duration of the safety device being in the electric release state is less than the first preset time, the safety device obtains a release signal, the safety device can cut off the output torque of the elevator motor and turn on the power output of the brake power supply module to the brake device; if the safety device continuously receives the release signal for a second preset time, the safety device can enter the safe state, otherwise the safety device keeps the output torque of the elevator motor in the cut-off state when receiving the release signal, and the power output of the brake power supply module to the brake device is in the on state until the release signal continuously received by the safety device times out, and the safety device enters the safe state.

[0065] In one embodiment, Figure 7 As shown, the method further includes:

[0066] Step 710: When the output torque of the elevator motor is cut off and the connection switch is disconnected, if an electric brake release switching instruction is obtained, the electric brake release state is entered and the current state signal is output to the main control module;

[0067] Step 720: When receiving the disconnection signal of the door lock circuit, if the duration of the electric release state reaches the first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module.

[0068] Specifically, if the on-site door lock circuit is abnormal, when the safety device cuts off the output torque of the elevator motor and disconnects the connection switch, if the safety device obtains the electric release switching instruction, the safety device can enter the electric release state, set the current state signal to the electric release state, and output the current state signal to the main control module; when the safety device receives the disconnection signal of the door lock circuit, it can be determined that the hall door level system is disconnected. If the duration of the safety device in the electric release state reaches a first preset time, and the safety device does not obtain the signal or instruction output by each trigger switch within the first preset time, the safety device can enter the safe state, set the current state signal to the safe state, and output the current state signal to the main control module.

[0069] In one embodiment, Figure 8 As shown, the method further includes:

[0070] Step 810: If the duration of the electric release state is less than the first preset time, and an emergency release switching instruction is obtained, the emergency release state is entered, and a current state signal is output to the main control module; the emergency release switching instruction includes instructions generated by each trigger switch according to the second preset timing sequence;

[0071] Step 820: If the duration of the emergency release state reaches a third preset time and no signal or instruction output by each trigger switch is obtained within the third preset time, the safe state is entered and the current state signal is output to the main control module.

[0072] Specifically, if the on-site door lock circuit is abnormal, and the duration of the safety device in the electric release state is less than the first preset time, the safety device obtains the emergency release switching instruction, then the safety device can enter the emergency release state, set the current state signal to the emergency release state, and output the current state signal to the main control module; the emergency release switching instruction may include instructions generated by each trigger switch according to the second preset timing, and by operating each trigger switch according to the second preset timing, the above-mentioned emergency release switching instruction can be generated; if the duration of the emergency release state reaches the third preset time, and the safety device does not obtain the signal or instruction output by each trigger switch within the third preset time, indicating that the emergency release state of the safety device has timed out, then the safety device can enter the safe state, set the current state signal to the safe state, and transmit the current state signal to the main control module.

[0073] In one embodiment, Figure 9As shown, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a second preset time sequence; the method further includes:

[0074] Step 910: If a release signal is obtained when the duration of the emergency release state is less than a third preset time, the output torque of the elevator motor is cut off and the connection switch is closed;

[0075] Step 920: If the time of continuously receiving the brake release signal reaches a fourth preset time, the safe state is entered, and the current state signal is output to the main control module.

[0076] Specifically, the electric brake release switching instruction may include an instruction generated by the first trigger switch and the second trigger switch according to a first preset timing, and the electric brake release switching instruction may be generated by operating the first trigger switch and the second trigger switch according to the first preset timing. The emergency brake release switching instruction may include an instruction generated by the first trigger switch and the second trigger switch according to a second preset timing, and the emergency brake release switching instruction may be generated by operating the first trigger switch and the second trigger switch according to the second preset timing. If the on-site door lock circuit is abnormal, and the safety device is in the emergency release state for a duration less than a third preset time, the safety device receives a release signal, then the safety device may cut off the output torque of the elevator motor and close the connection switch between the brake device and the brake power module to conduct the power supply of the brake device to the brake power module; if the safety device continues to receive the release signal for a fourth preset time, the safety device enters a safe state, sets the current state signal to a safe state, and outputs the current state signal to the main control module.

[0077] In one embodiment, Figure 10 As shown, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a second preset time sequence; the method further includes:

[0078] Step 1010: If the duration of the electric release state is less than the first preset time and the door lock circuit disconnect signal is not received, then if the duration of the electric release state reaches the first preset time, the vehicle enters the safe state and outputs the current state signal to the main control module;

[0079] Step 1020: If a release signal is obtained when the duration of the electric release state is less than a first preset time, the output torque of the elevator motor is cut off and the connection switch is closed;

[0080] Step 1030: If the time of continuously receiving the brake release signal reaches a second preset time, the safe state is entered and the current state signal is output to the main control module.

[0081] Specifically, the electric brake release switching instruction may include an instruction generated by the first trigger switch and the second trigger switch according to a first preset timing, and the electric brake release switching instruction may be generated by operating the first trigger switch and the second trigger switch according to the first preset timing. The emergency brake release switching instruction may include an instruction generated by the first trigger switch and the second trigger switch according to a second preset timing, and the emergency brake release switching instruction may be generated by operating the first trigger switch and the second trigger switch according to the second preset timing. If the on-site door lock circuit is abnormal, and the duration of the safety device in the electric brake release state is less than the first preset time, if the safety device does not receive a disconnection signal from the door lock circuit, the safety device may enter a safe state when the duration of the electric brake release state reaches the first preset time, and may set the current state signal to a safe state, and output the current state signal to the main control module. If the safety device obtains a release signal when the duration of time in the electric release state is less than the first preset time, the safety device can cut off the output torque of the elevator motor and close the connection switch between the brake device and the brake power module to turn on the power supply of the brake device to the brake power module; if the time when the safety device receives the release signal reaches the second preset time, the release signal received by the safety device times out, the safety device can enter the safe state, set the current state signal to the safe state, and output the current state signal to the main control module.

[0082] In one embodiment, Figure 11As shown, when the safety device is in a normal state, it can determine whether the safety circuit is disconnected by receiving a signal from the safety circuit; when receiving a disconnection signal from the safety circuit, the safety device can cut off the output torque of the elevator motor and disconnect the power output of the brake power module to the brake device; when the output torque of the elevator motor is cut off and the power output of the brake power module to the brake device is disconnected, if the safety device receives an electric release switching instruction, the safety device can enter the electric release state; the safety device can determine whether the hall door level system is disconnected by receiving a signal from the door lock circuit; when the safety device receives a disconnection signal from the door lock circuit, if the duration of the safety device in the electric release state reaches a first preset time and the safety device does not obtain a signal or instruction output by each trigger switch within the first preset time, the safety device can enter the safe state; if the duration of the safety device in the electric release state is less than the first preset time and an emergency release switching instruction is obtained, the safety device can enter the emergency release state; if the duration of the safety device in the emergency release state reaches a third preset time and the safety device does not obtain a signal or instruction output by each trigger switch within the third preset time, the safety device can to enter a safe state; if the duration of the safety device in the emergency release state is less than the third preset time, and a release signal is obtained, the safety device can cut off the output torque of the elevator motor and turn on the power output of the brake power module to the brake device; if the time of continuously receiving the release signal reaches a fourth preset time, the safety device can enter a safe state; if the duration of the safety device in the electric release state is less than the first preset time, if no disconnection signal of the door lock circuit is received, then when the duration of the safety device in the electric release state reaches the first preset time, the safety device can enter Safety state; if a release signal is received while the safety device is in the electric release state for less than a first preset time, the safety device may cut off the output torque of the elevator motor and turn on the power output of the brake power module to the brake device; if the safety device continues to receive the release signal for a second preset time, the safety device may enter the safety state. Otherwise, upon receiving the release signal, the safety device maintains the output torque of the elevator motor in the cut-off state and the power output of the brake power module to the brake device in the on state until the release signal received by the safety device times out, at which point the safety device enters the safety state. The above embodiment, by first entering the electric release state and then detecting the door lock circuit state, can be applied to elevator release operations in the event of an abnormal door lock circuit on-site to confirm the next action or state.

[0083] In some examples, the safety device may be implemented as Figure 12 The structure shown is implemented, wherein Figure 12As shown in (a), the first trigger switch S1-2 and the second trigger switch S2-2 of the safety device can be connected in series with the power supply unit of the electromechanical component to form different circuits, or as shown in Figure 12 As shown in (b), the first trigger switch S1-2 and the second trigger switch S2-2 of the safety device are connected in series with each other and are both connected in series with the power supply unit of the same electromechanical component to form a loop; the connecting switch arranged between the brake power module and the brake device in the safety device can be implemented by using two switches connected in series and serving as backup for each other.

[0084] In some examples, the safety device may also be used as Figure 13 The structure shown is implemented, wherein Figure 13 As shown in (a), the first trigger switch S1-2 of the safety device can form a loop with the micro control unit MCU1, and the second trigger switch S2-2 of the safety device can form a loop with the micro control unit MCU2; Figure 13 As shown in (b), the first trigger switch S1-2 and the second trigger switch S2-2 of the safety device can be connected in parallel with each other and connected in series to the same micro control unit MCU to form a loop; Figure 13 As shown in (c), the first trigger switch S1-2 and the second trigger switch S2-2 of the safety device can be connected in series with each other and are both connected in series with the same microcontroller unit MCU to form a loop; the connecting switch set between the brake power module and the brake device in the safety device can be implemented by using two switches connected in series and serving as backup for each other.

[0085] The input signals of the safety device used in this application are all safe voltages, the current is small and the wiring is convenient, there are many optional installation positions for the device, and the device requirements for the first trigger switch and the second trigger switch are low. The internal layout is simple and the cost performance is high.

[0086] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0087] Based on the same inventive concept, embodiments of the present application further provide an elevator brake release control device for implementing the aforementioned elevator brake release method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more elevator brake release control device embodiments provided below can be found in the above-described limitations of the elevator brake release method and will not be further elaborated here.

[0088] In one embodiment, Figure 14 As shown, an elevator brake release control device is provided, which is applied to a safety device; the safety device is used to connect the elevator motor, the main control module, the brake power module and the brake device respectively; the safety device is also used to connect the safety circuit and the door lock circuit respectively; the safety device includes at least one trigger switch and a connection switch provided between the safety device and the brake power module; the control device includes:

[0089] The switch action module 1410 is used to cut off the output torque of the elevator motor and disconnect the connection switch if a disconnect signal from the safety circuit is received;

[0090] The electric brake release module 1420 is configured to enter the electric brake release state upon receiving a closing signal from the door lock circuit and obtaining an electric brake release switching instruction, and output a current state signal to the main control module; the electric brake release switching instruction includes instructions generated by each trigger switch operating according to a first preset timing sequence;

[0091] The safety state module 1430 is used to enter the safety state if the duration of the electric release state reaches a first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, and output the current state signal to the main control module.

[0092] In one embodiment, the switch action module 1410 is further configured to, if a release signal is obtained when the duration of the electric release state is less than a first preset time, cut off the output torque of the elevator motor and close the connecting switch; the release signal includes a signal generated by closing all trigger switches;

[0093] The safety state module 1430 is further configured to enter a safety state if the time for continuously receiving the brake release signal reaches a second preset time, and output a current state signal to the main control module.

[0094] In one embodiment, the electric brake release module 1420 is further configured to enter the electric brake release state and output a current state signal to the main control module if an electric brake release switching instruction is obtained when the output torque of the elevator motor is cut off and the connection switch is disconnected;

[0095] The safety status module 1430 is also used to enter a safety state when a disconnect signal of the door lock circuit is received, if the duration of the electric release state reaches a first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, and output the current state signal to the main control module.

[0096] In one embodiment, the control device further includes an emergency brake release module, which is configured to enter the emergency brake release state and output a current state signal to the main control module if an emergency brake release switching instruction is obtained when the duration of the electric brake release state is less than a first preset time; the emergency brake release switching instruction includes an instruction generated by each trigger switch operating according to a second preset timing sequence;

[0097] The safety state module 1430 is also used to enter the safety state and output the current state signal to the main control module if the duration of the emergency release state reaches a third preset time and no signal or instruction output by each trigger switch is obtained within the third preset time.

[0098] In one embodiment, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch operating in accordance with a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch operating in accordance with a second preset time sequence;

[0099] The switch action module 1410 is further configured to, if a release signal is obtained when the duration of the emergency release state is less than a third preset time, cut off the output torque of the elevator motor and close the connection switch;

[0100] The safety state module 1430 is further configured to enter a safety state if the time for continuously receiving the brake release signal reaches a fourth preset time, and output a current state signal to the main control module.

[0101] In one embodiment, the safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch operating in accordance with a first preset time sequence; the emergency brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch operating in accordance with a second preset time sequence;

[0102] The safety state module 1430 is further configured to, if the duration of the electric release state is less than the first preset time and if no disconnection signal of the door lock circuit is received, enter the safety state when the duration of the electric release state reaches the first preset time and output a current state signal to the main control module;

[0103] The switch action module 1410 is further configured to, if a release signal is obtained when the duration of the electric release state is less than a first preset time, cut off the output torque of the elevator motor and close the connection switch;

[0104] The safety state module 1430 is further configured to enter a safety state if the time for continuously receiving the brake release signal reaches a second preset time, and output a current state signal to the main control module.

[0105] Each module in the aforementioned elevator brake release control device may be implemented in whole or in part through software, hardware, or a combination thereof. Each module may be embedded in or independent of a processor in a computer device in the form of hardware, or may be stored in a memory in the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0106] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0107] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 15 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface and an input device. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, an elevator brake release method is implemented.

[0108] Those skilled in the art will understand that Figure 15 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0109] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0110] In one embodiment, a computer program product is provided, comprising a computer program, which implements the steps of the above method when executed by a processor.

[0111] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0112] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. An elevator brake release method, characterized in that: The method is applied to a safety device; the safety device is respectively used to connect an elevator motor, a main control module, a brake power module, and a brake device; the safety device is also respectively used to connect a safety circuit and a door lock circuit; the safety device includes at least one trigger switch and a connection switch provided between the brake device and the brake power module; the method includes: If a disconnection signal from the safety circuit is received, the output torque of the elevator motor is cut off and the connection switch is disconnected; If an electric brake release switching instruction is obtained when a closing signal of the door lock circuit is received, the electric brake release state is entered, and a current state signal is output to the main control module; the electric brake release switching instruction includes an instruction generated by each of the trigger switches according to a first preset timing action; If the duration of the electric release state reaches a first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module; The method further comprises: If the duration of the electric brake release state is less than the first preset time, an emergency brake release switching instruction is obtained, then the emergency brake release state is entered, and the current state signal is output to the main control module; the emergency brake release switching instruction includes instructions generated by each of the trigger switches according to the second preset timing action; If the duration of the emergency release state reaches a third preset time and no signal or instruction output by each trigger switch is obtained within the third preset time, the safe state is entered and the current state signal is output to the main control module.

2. The method according to claim 1, characterized in that The method further comprises: If the duration of the electric brake release state is less than the first preset time, a brake release signal is obtained, the output torque of the elevator motor is cut off, and the connecting switch is closed; the brake release signal includes a signal generated by closing all the trigger switches; If the time for continuously receiving the brake release signal reaches a second preset time, the safe state is entered, and the current state signal is output to the main control module.

3. The method according to claim 1, characterized in that The method further comprises: When the output torque of the elevator motor is cut off and the connection switch is disconnected, if the electric brake switching instruction is obtained, the electric brake state is entered and the current state signal is output to the main control module; When a disconnect signal from the door lock circuit is received, if the duration of the electric release state reaches the first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, the safe state is entered and the current state signal is output to the main control module.

4. The method according to claim 2, characterized in that The safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch acting according to the first preset timing; The emergency release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to the second preset time sequence; the method further includes: If the duration of the emergency release state is less than the third preset time, the release signal is obtained, cutting off the output torque of the elevator motor and closing the connection switch; If the time for continuously receiving the brake release signal reaches a fourth preset time, the safe state is entered, and the current state signal is output to the main control module.

5. The method according to claim 2, characterized in that The safety device includes a first trigger switch and a second trigger switch; the electric brake release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch acting according to the first preset timing; The emergency release switching instruction includes an instruction generated by the first trigger switch and the second trigger switch according to a second preset time sequence; the method further includes: When the duration of the electric brake release state is less than the first preset time, if the disconnection signal of the door lock circuit is not received, then when the duration of the electric brake release state reaches the first preset time, the vehicle enters the safe state and outputs the current state signal to the main control module; If the duration of the electric brake release state is less than the first preset time, the brake release signal is obtained, cutting off the output torque of the elevator motor and closing the connection switch; If the time for continuously receiving the brake release signal reaches the second preset time, the safe state is entered, and the current state signal is output to the main control module.

6. An elevator brake release control device, characterized in that: The control device is applied to a safety device; the safety device is respectively used to connect the elevator motor, the main control module, the brake power module and the brake device; the safety device is also used to connect the safety circuit and the door lock circuit respectively; the safety device includes at least one trigger switch and a connection switch provided between the safety device and the brake power module; The control device comprises: a switch action module, configured to cut off the output torque of the elevator motor and disconnect the connection switch upon receiving a disconnect signal from the safety circuit; an electric brake release module, configured to enter an electric brake release state upon receiving a closing signal from the door lock circuit and obtaining an electric brake release switching instruction, and output a current state signal to the main control module; the electric brake release switching instruction includes instructions generated by each of the trigger switches operating according to a first preset timing sequence; a safety state module, configured to enter a safety state if the duration of the electric brake release state reaches a first preset time and no signal or instruction output by each trigger switch is obtained within the first preset time, and output the current state signal to the main control module; The control device further includes an emergency brake release module, which is configured to obtain an emergency brake release switching instruction when the duration of the electric brake release state is less than the first preset time, enter the emergency brake release state, and output the current state signal to the main control module; the emergency brake release switching instruction includes an instruction generated by each of the trigger switches according to the second preset timing action; The safety state module is also used to enter the safety state and output the current state signal to the main control module if the duration of the emergency release state reaches a third preset time and no signal or instruction output by each trigger switch is obtained within the third preset time.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

9. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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