Elevator car positioning system, method, electronic device and storage medium

Abstract

The present invention relates to the field of elevator technology, and discloses a positioning system, method, electronic device, and storage medium for an elevator car. In the present invention, the positioning system for the elevator car includes: an elevator master controller, an outside call board at each floor station, and a door lock contact of a floor door at each floor station; the door lock contact of the floor door at each floor station is connected to the outside call board at the floor station, and the outside call board at each floor station is connected to the elevator master controller via a bus, and each outside call board transmits the status of the received door lock contact of the floor door and the floor station where the outside call board is located to the elevator master controller via the bus; when the elevator master controller detects that the status of any door lock contact among the received door lock contacts of each floor door is disconnected, it determines that the floor station where the elevator car is currently located is the floor station where the outside call board corresponding to the door lock contact is located. The elevator car can be positioned without the car returning to the upper / lower terminal station, effectively shortening the time required for positioning the elevator car.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a positioning system, method, electronic equipment and storage medium for an elevator car. Background Art

[0002] Most elevators currently on the market use a rotary encoder combined with a leveling switch to ensure proper car leveling and position. This car positioning system offers advantages such as high cost-effectiveness. However, during operation, due to external factors such as power outages and rope slippage, when the elevator is restarted after repairing a fault or completing maintenance, the actual floor of the elevator may differ from the floor determined by the elevator system (i.e., the floor displayed by the elevator). This phenomenon is known as staggered flooring.

[0003] If an elevator staggers, continued operation may cause the elevator to hit the top or bottom, leading to an accident and even significant loss of life and property. Therefore, after an elevator staggers, it is necessary to promptly correct the elevator position to restore normal positioning. Traditionally, this correction method involves running the elevator car to the upper or lower station to correct the position and restore normal operation.

[0004] However, this method of correcting the elevator position is inefficient and generally takes a long time, which may have a certain negative impact on the user experience of the elevator. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a positioning system, method, electronic device and storage medium for an elevator car, so as to improve the efficiency of correcting the position of the elevator and shorten the time required for correcting the position of the elevator.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a positioning system for an elevator car, comprising: an elevator master controller, an outside call board at each floor station, and a door lock contact of a floor door at each floor station; the door lock contact of the floor door at each floor station is connected to the outside call board at the floor station, and the outside call board at each floor station is connected to the elevator master controller via a bus, and each outside call board transmits the status of the received door lock contact of the floor door and the floor station where the outside call board is located to the elevator master controller via the bus; when the elevator master controller detects that the status of any door lock contact among the received status of the door lock contacts of each floor door is disconnected, it determines that the floor station where the elevator car is currently located is the floor station where the outside call board corresponding to the door lock contact is located.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the present invention also provides a positioning method for an elevator car, which is applied to an elevator master controller, and the outside call board of each floor station is connected to the elevator master controller through a bus, and the door lock contacts of the floor doors of each floor station are connected to the outside call board of the floor station; the method includes: receiving the status of the door lock contacts of the floor doors and the floor station where the outside call board is located transmitted by each outside call board through the bus; when it is detected that the status of any door lock contact of the received door lock contacts of each floor door is disconnected, it is determined that the floor station where the elevator car is currently located is the floor station where the outside call board corresponding to the door lock contact is located.

[0008] In order to achieve the above-mentioned purpose, an embodiment of the present invention further provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned elevator car positioning method.

[0009] In order to achieve the above-mentioned object, an embodiment of the present invention further provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above-mentioned elevator car positioning method is implemented.

[0010] In an embodiment of the present invention, an elevator car positioning system includes an elevator master controller, a hall call panel at each landing, and door lock contacts for each landing door. The door lock contacts for each landing door are connected to the hall call panel at that landing, which is connected to the elevator master controller via a bus. Each hall call panel transmits the status of the door lock contacts and the landing location of the hall call panel to the elevator master controller via the bus. When the elevator master controller detects that any of the received door lock contacts is disconnected, it determines that the elevator car is currently located at the landing location of the hall call panel corresponding to the door lock contact. The elevator car positioning system provided by the present invention allows the elevator car to be positioned without returning to the upper / lower terminal, effectively reducing the time required for positioning the elevator car and improving elevator operation safety. Furthermore, the positioning system involves components already included in conventional elevators and can be implemented with only a small amount of additional wiring, making it economical to position the elevator car.

[0011] In addition, the target door lock contacts of each landing door are connected to the hall call panel of that landing. The target door lock contacts are one set of door lock contacts among the door lock contacts of the landing door. The non-target door lock contacts among the door lock contacts of the landing door are connected in series to form a door lock circuit, which is connected to the elevator master controller. Multiple sets of door lock contacts connected in series can form a door lock circuit, and then connected to the elevator master controller, allowing the elevator master controller to directly obtain the status of the door lock contacts.

[0012] In addition, the elevator master controller is also used to determine that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located when it detects that the state of any door lock contact among the received door lock contacts of each floor door is disconnected and detects that the door lock circuit is disconnected.

[0013] In addition, the elevator car positioning system further includes a door lock contact of the car door, and the door lock contact of the car door and a non-target door lock contact among the door lock contacts of the landing door are connected in series to form a door lock circuit.

[0014] Furthermore, the elevator master controller is further configured to control the elevator to enter a fault protection state upon detecting that any of the received door lock contact states for the landing doors is disconnected and detecting that the door lock circuit is not disconnected. If the elevator master controller detects that the door lock circuit is not disconnected when the landing doors are open, this indicates that a short circuit exists in the door lock circuit. In this case, the door lock circuit may not reflect the actual open / closed state of the landing doors and car door, potentially leading to an elevator accident. Therefore, in this embodiment, the elevator master controller can promptly detect abnormalities in the elevator door lock circuit, thereby preventing elevator accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings, and these exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0016] Figure 1 2 is a schematic structural diagram of a positioning system for an elevator car according to an embodiment of the present invention;

[0017] Figure 2 is a schematic flow chart of a method for positioning an elevator car according to one embodiment of the present invention;

[0018] Figure 3 FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that many technical details are provided in the embodiments of the present invention to help readers better understand the present application. However, even without these technical details and the various variations and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0020] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0021] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] One embodiment of the present invention relates to a positioning system for an elevator car. The following is a detailed description of the implementation details of the elevator car positioning system in this embodiment. The following content is only for the convenience of understanding the implementation details of this solution and is not necessary for the implementation of this solution. The structural diagram of the elevator car positioning system can be as follows: Figure 2 shown.

[0023] In this embodiment, the elevator car positioning system includes: an elevator master controller (see Figure 1 Master controller shown in ), hall call board of each floor station (see Figure 1 The bottom and top external call boards shown in the figure may also include Figure 1 The door lock contacts of the landing doors of each landing station (see Figure 1 The bottom door lock contacts and top door lock contacts shown in the figure may also include Figure 1 The landing door lock contacts of each intermediate layer are not shown in the figure).

[0024] The hall call panel at each landing is typically located at the landing where it is located. Door lock contacts, also known as door lock switches, indicate whether the door is open or closed. Landing door lock contacts are typically located near the landing door and indicate whether the door is open or closed. Generally speaking, an open landing door lock switch indicates the door is open, while a closed landing door lock switch indicates the car door is closed.

[0025] The door lock contacts of the landing doors of each landing are connected to the hall call board of the landing, and the hall call board of each landing is connected to the elevator master controller via a bus. Each hall call board transmits the received state of the door lock contacts of the landing door and the landing where the hall call board is located to the elevator master controller via the bus.

[0026] When the elevator master controller detects that the state of any door lock contact of each floor door is disconnected, it determines that the floor where the elevator car is currently located is the floor where the hall call plate corresponding to the door lock contact is located.

[0027] Specifically, when the elevator master controller detects an open door lock contact among the received door lock contact states, it can determine which floor's hall call board the door lock contact originated from. This hall call board is the hall call board corresponding to the door lock contact. Because the hall call board also transmits its landing location to the elevator master controller, the elevator master controller can determine the landing location of the hall call board and, therefore, the landing with the open door. Generally speaking, the floor door opens when the car door opens, so the landing with the open door is also the landing where the car is located.

[0028] In one example, the door lock contacts of a landing door may include multiple sets of door lock contacts, and the door lock contacts connected to the landing station may be one of the multiple sets of door lock contacts. In this example, the target door lock contacts of the landing door of each landing station are connected to the hall call panel of the landing station, and the target door lock contacts are one of the door lock contacts of the landing door; the non-target door lock contacts of the door lock contacts of the landing door are connected in series to form a door lock circuit, and the door lock circuit is connected to the elevator master controller.

[0029] In this example, each floor door can be equipped with multiple sets of door lock contacts that represent the door lock status of each floor. In addition to the target door lock contacts connected to the landing station hall call panel, the remaining sets of door lock contacts (i.e., non-target door lock contacts) can be connected in series to the elevator master controller. These multiple sets of door lock contacts in series form a door lock circuit, which, when connected to the elevator master controller, allows the elevator master controller to directly obtain the status of the door lock contacts. Furthermore, the elevator master controller can directly determine whether to brake the elevator based on the on / off status of the door lock circuit.

[0030] It should be noted that the elevator master controller can start the calibration of the car position (i.e., determine that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located) when it only detects that the state of any door lock contact among the received state of the door lock contacts of each floor door is disconnected. In another example, it can also start the calibration of the car position and determine that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located when it detects that the state of any door lock contact among the received state of the door lock contacts of each floor door is disconnected and it is detected that the door lock circuit is disconnected.

[0031] The above two conditions for starting the car position calibration process can be determined according to actual calibration requirements to flexibly adapt to the actual conditions and actual requirements of different elevator application scenarios.

[0032] In one example, the elevator car positioning system may also include the car door's door lock contacts. It is understood that the car door lock contacts reflect the door's opening and closing status. Generally speaking, an open car door lock switch indicates an open car door, while a closed car door lock switch indicates a closed car door. The car door lock contacts can be connected in series with non-target door lock contacts of the landing door, forming a door lock circuit. This allows the elevator master controller to directly detect the status of the door lock circuit and, consequently, the status of the car door lock contacts and landing door lock contacts.

[0033] In one example, the elevator master controller is further configured to control the elevator to enter a fault protection state upon detecting that any of the received door lock contact states for the landing doors is disconnected and detecting that the door lock circuit is not disconnected. In this example, if the elevator master controller detects that any of the received door lock contact states for the landing doors is disconnected, it indicates that a door on a floor is open. Accordingly, the door lock circuit should be disconnected. Therefore, if the elevator master controller detects that the door lock circuit is not disconnected, it deems the door lock circuit abnormal and controls the elevator to enter a fault protection state. If the elevator master controller detects that the door lock circuit is not disconnected when the landing door is open, it indicates that a short circuit exists in the door lock circuit. In this case, the door lock circuit may not reflect the actual open / closed state of the landing door and car door, potentially leading to an elevator accident. Therefore, in this example, the elevator master controller can promptly detect abnormalities in the elevator door lock circuit, thereby preventing elevator accidents.

[0034] In an embodiment of the present invention, an elevator car positioning system includes an elevator master controller, a hall call panel at each landing, and door lock contacts for each landing door. The door lock contacts for each landing door are connected to the hall call panel at that landing, which is connected to the elevator master controller via a bus. Each hall call panel transmits the status of the door lock contacts and the landing location of the hall call panel to the elevator master controller via the bus. When the elevator master controller detects that any of the received door lock contacts is disconnected, it determines that the elevator car is currently located at the landing location of the hall call panel corresponding to the door lock contact. The elevator car positioning system provided by the present invention allows the elevator car to be positioned without returning to the upper / lower terminal, effectively reducing the time required for positioning the elevator car and improving elevator operation safety. Furthermore, the positioning system involves components already included in conventional elevators and can be implemented with only a small amount of additional wiring, making it economical to position the elevator car.

[0035] It's also worth noting that the elevator car positioning system provided by this embodiment can actually retain the traditional elevator car positioning device. This can be achieved by simply adding two wires at each landing to connect the door lock contacts of the landing door to the landing call plate. Therefore, the positioning system provided by this embodiment can achieve elevator car positioning in a relatively economical manner, significantly reducing costs compared to methods that determine elevator car position through optical or magnetic signals.

[0036] One embodiment of the present invention relates to a positioning method for an elevator car, which is applied to an elevator master controller, wherein the hall call board of each floor is connected to the elevator master controller via a bus, and the door lock contacts of the floor doors of each floor are connected to the hall call board of the floor.

[0037] In this embodiment, the elevator master controller receives the status of the door lock contacts of the floor doors and the floor station where the floor call board is located, which are transmitted by each of the floor call boards through the bus; when it is detected that the status of any of the door lock contacts received is disconnected, it is determined that the floor station where the elevator car is currently located is the floor station where the floor call board corresponding to the door lock contact is located.

[0038] The following is a detailed description of the implementation details of the elevator car positioning method in this embodiment. The following content is only for the convenience of understanding the implementation details of this solution and is not necessary for the implementation of this solution. Figure 2 As shown, the following steps may be included:

[0039] Step 201: receiving the state of the door lock contact of the landing door and the landing where the landing call board is located, which are transmitted by each landing call board via the bus.

[0040] Step 202: When it is detected that the state of any door lock contact of each floor door is disconnected, the floor where the elevator car is currently located is determined to be the floor where the hall call plate corresponding to the door lock contact is located.

[0041] Specifically, in this step, when the elevator master controller detects that any of the received door lock contact states are open, it can determine which floor the door lock contact originated from, and the hall call board corresponding to the door lock contact. Because the hall call board also transmits its landing address to the elevator master controller, the elevator master controller can determine the landing address of the hall call board and, consequently, the landing address where the door is open, i.e., the elevator car is located.

[0042] In one example, the step 202 of determining that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located when any of the door lock contacts of the received floor doors are detected to be disconnected may include: determining that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located when any of the door lock contacts of the received floor doors are detected to be disconnected and the door lock circuit is detected to be disconnected.

[0043] The elevator master controller can initiate the calibration of the car position (i.e., determine that the current landing of the elevator car is the landing where the hall call plate corresponding to the door lock contact is located) when only the state of any door lock contact among the received states of the door lock contacts of the said landing doors is detected to be disconnected. Alternatively, the elevator master controller can initiate the calibration of the car position and determine that the current landing of the elevator car is the landing where the hall call plate corresponding to the door lock contact is located when the state of any door lock contact among the received states of the door lock contacts of the said landing doors is detected to be disconnected and the door lock circuit is detected to be disconnected. The above two conditions for initiating the car position calibration process can be determined according to actual calibration requirements to flexibly adapt to the actual conditions and actual requirements of different elevator application scenarios.

[0044] In another example, the elevator car positioning method may further include controlling the elevator to enter a fault protection state upon detecting that any of the received door lock contact states for the landing doors is disconnected and detecting that the door lock circuit is not disconnected. In this example, if the elevator master controller detects that any of the received door lock contact states for the landing doors is disconnected, it indicates that a door on a landing is open. Accordingly, the door lock circuit should be disconnected. Therefore, if the elevator master controller detects that the door lock circuit is not disconnected, it deems the door lock circuit abnormal and controls the elevator to enter a fault protection state. If the elevator master controller detects that the door lock circuit is not disconnected when the landing door is open, it indicates that a short circuit exists in the door lock circuit. In this case, the door lock circuit may not reflect the actual open / closed state of the landing door and car door, potentially leading to an elevator accident. Therefore, in this example, the elevator master controller can promptly detect abnormalities in the elevator door lock circuit, thereby preventing elevator accidents.

[0045] It is also worth mentioning that the technical details involved in the aforementioned embodiment and the technical effects that can be achieved are still applicable in this embodiment. In order to reduce repetition, they will not be repeated in this embodiment.

[0046] In this embodiment, when the elevator master controller detects that any of the received door lock contacts for the landing doors is disconnected, it determines that the elevator car is currently located at the landing where the hall call board corresponding to the door lock contact is located. The elevator car positioning system provided by the present invention allows the elevator car to be positioned without returning to the upper / lower terminal, effectively shortening the time required for positioning the elevator car and improving elevator operation safety. Furthermore, the positioning system involves components already included in conventional elevators and can be implemented with only a small amount of additional wiring, making it a relatively economical method for positioning the elevator car.

[0047] It is worth noting that the modules described in the above embodiments of the present invention are all logical modules. In practical applications, a logical unit can be a physical unit, a portion of a physical unit, or a combination of multiple physical units. Furthermore, to highlight the innovations of the present invention, units that are not closely related to solving the technical problems proposed by the present invention are not included in this embodiment. However, this does not mean that other units do not exist in this embodiment.

[0048] An embodiment of the present invention further provides an electronic device, such as Figure 3As shown, it includes at least one processor 301; and a memory 302 that is communicatively connected to the at least one processor 301; wherein the memory 302 stores instructions that can be executed by the at least one processor 301, and the instructions are executed by the at least one processor 301 to enable the at least one processor 301 to execute the above-mentioned elevator car positioning method.

[0049] The memory 302 and processor 301 are connected using a bus. The bus can include any number of interconnected buses and bridges, connecting various circuits of one or more processors 301 and memory 302. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits. These are all well known in the art and are therefore not described further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be a single component or multiple components, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by the processor 301 is transmitted over a wireless medium via an antenna. Furthermore, the antenna receives data and transmits it to the processor 301.

[0050] The processor 301 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 302 can be used to store data used by the processor 301 when performing operations.

[0051] The above-mentioned product can execute the method provided in the embodiment of this application, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in this embodiment, please refer to the method provided in the embodiment of this application.

[0052] The embodiments of the present application further provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-mentioned elevator car positioning method.

[0053] Those skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a device (which may be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps in the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0054] The above embodiments are provided to those skilled in the art for implementing and using the present invention. Those skilled in the art may make various modifications or changes to the above embodiments without departing from the inventive concept of the present application. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should conform to the maximum scope of the innovative features mentioned in the claims.

Claims

1. A positioning system for an elevator car, characterized in that: include: Elevator master controller, hall call panels at each floor, door lock contacts at each floor, and door lock contacts at the elevator car doors; The door lock contacts include target door lock contacts and non-target door lock contacts; The target door lock contact of each landing is connected to the hall call board of the landing, and the hall call board of each landing is connected to the elevator master controller via a bus, and each hall call board transmits the received state of the target door lock contact and the landing where the hall call board is located to the elevator master controller via the bus; The non-target door lock contacts of each floor door are connected in series, and the door lock contacts of the car door and the non-target door lock contacts of the floor door are connected in series to form a door lock circuit, and the door lock circuit is connected to the elevator master controller; When the elevator master controller detects that the state of any door lock contact among the received door lock contacts of each floor door is disconnected and detects that the door lock circuit is disconnected, it is determined that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located.

2. The elevator car positioning system according to claim 1, characterized in that: The elevator master controller is further configured to control the elevator to enter a fault protection state when it detects that the state of any door lock contact of each floor door is disconnected and detects that the state of the door lock circuit is not disconnected.

3. A method for positioning an elevator car, characterized in that: Applied to the elevator master controller, and the hall call board of each landing is connected to the elevator master controller through a bus, the target door lock contact of each landing door is connected to the hall call board of the landing, the non-target door lock contacts of each landing door are connected in series, the door lock contact of the car door and the non-target door lock contacts of the landing door are connected in series to form a door lock circuit, and the door lock circuit is connected to the elevator master controller; The method comprises: receiving the state of the target door lock contact of the landing door, the state of the door lock circuit and the landing where the landing call board is located, which are transmitted by each landing call board through the bus; When it is detected that the state of any target door lock contact among the received target door lock contacts of each floor door is disconnected and the door lock circuit is detected to be disconnected, it is determined that the floor station where the elevator car is currently located is the floor station where the outside call plate corresponding to the door lock contact is located.

4. The elevator car positioning method according to claim 3, characterized in that: Also includes: When it is detected that the state of any door lock contact of each of the received door lock contacts is disconnected and it is detected that the state of the door lock circuit is not disconnected, the elevator is controlled to enter a fault protection state.

5. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the elevator car positioning method according to any one of claims 3 to 4.

6. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the elevator car positioning method according to any one of claims 3 to 4 is implemented.

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