Method for pre-maintaining door lock of elevator landing door

Abstract

The invention discloses an elevator landing door lock pre-maintenance method, which is realized through an elevator landing door lock control system, and is characterized in that a main control board is connected with a server through a CAN1 communication bus, and is connected with a car roof and door controller integrated device through a CAN2 communication bus; the car top plate and door controller integrated device is connected with a door motor through a PG line and a phase line, after an on-site elevator is installed, a door of each layer is adjusted, after all the door are adjusted, a main control board sets a parameter 1 to conduct door lock learning of the door, the main control board records the number of pulses of rotation of the door motor of each layer through parameters 2-n + 1 every time learning of one layer is completed, and the number of pulses of rotation of the door motor of each layer is calculated. And n is the number of doors, and if the number of pulses has errors and exceeds a certain number of times, the main control board commands the server to send maintenance information to maintenance personnel through the CAN1 communication bus to pre-maintain the landing doors and readjust the landing doors. Landing door lock faults can be avoided, and use safety of an elevator is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of elevator failures, and in particular to a method for pre-maintenance of elevator floor door locks. Background Art

[0002] In real life, door lock failure (especially floor door lock failure) ranks among the top three common elevator failures. This is because in the existing elevator design, the door lock contacts cannot be tracked and located. Once the floor door lock fails, especially the door lock contacts are blocked, the safety circuit will be blocked, causing the elevator to stop and easily trap people. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for pre-maintenance of elevator floor door locks.

[0004] The technical solution of the present invention is as follows:

[0005] A method for pre-maintenance of elevator floor door locks is realized by an elevator floor door lock control system composed of a server, a main control board, a car top board and a door controller integrated device, and a door machine motor. The main control board is connected to the server through a CAN1 communication bus, the main control board is connected to the car top board and the door controller integrated device through a CAN2 communication bus, the car top board and the door controller integrated device are respectively connected to the door machine motor through a PG line and a phase line. After the on-site elevator is installed, each floor door is adjusted. After all floor doors are adjusted, the main control board sets parameter 1 to learn the floor door locks. After each floor is learned, the main control board records the number of pulses of the door machine motor of each floor through parameters 2 to n+1, where n is the number of doors. If an error occurs in the number of pulses and exceeds a certain number of times, the main control board commands the server to send maintenance information to maintenance personnel through the CAN1 communication bus to perform floor door pre-maintenance and readjust the floor doors.

[0006] When learning the floor door locks, the main control board sends the operation command to the car top board and the door controller integrated device through the CAN2 communication bus, so that the elevator automatically runs to each floor and opens and closes the door once.

[0007] The main control board also has parameters n+2 and parameters n+3~2n+2. Parameter n+2 is the number of pulses after the door of the current floor is closed when the elevator stops normally. Parameters n+3~2n+2 are the number of pulse errors of the doors on each floor. By comparing parameters 2~n+1 with parameter n+2, the number of pulse errors is recorded once when the error differs by ±39.

[0008] When any of the parameters n+3 to 2n+2 exceeds 5 times, the main control board commands the server to send maintenance information to the maintenance personnel through the CAN1 communication bus to perform pre-maintenance of the floor door.

[0009] After the maintenance personnel readjust the floor door, the current floor door self-learning is performed again, and the error parameter automatically returns to 0 and is recalculated.

[0010] Compared with the prior art, the beneficial effect of the present invention is that the present invention can track and locate the door lock contacts, and by comparing the number of pulses of the door machine motor on each floor, when an error occurs in the number of pulses and exceeds a certain number of times, maintenance information is sent to the maintenance personnel to perform pre-maintenance of the floor door, thereby avoiding floor door lock failures and ensuring the safe use of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a system block diagram of the elevator floor door lock control system of the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0014] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0015] Example

[0016] This embodiment provides a method for pre-maintenance of elevator door locks. Figure 1It is realized through the elevator floor door lock control system composed of a server, a main control board, a car top board and a door controller integrated device, and a door machine motor. The main control board is connected to the server through the CAN1 communication bus, the main control board is connected to the car top board and the door controller integrated device through the CAN2 communication bus, and the car top board and the door controller integrated device are connected to the door machine motor through the PG line and the phase line respectively. The principle is mainly to record 1024 pulses every time the door machine motor rotates one circle, and then drive a roller with a diameter of 2.5cm through the motor shaft, and the roller drives the belt (the belt then drives the floor door through mechanical design) to realize the floor door switch. The number of pulses required for the car door to drive each floor door is different. In this way, the contact of each floor door is tracked and located by this method (Note: the motor rotates one circle with 1024 pulses, the roller diameter is 2.5cm, and the circumference is 2.5*3.14=7.85cm. This distance is the distance the motor rotates one circle, the distance the belt moves, that is, the distance the floor door moves; the distance corresponding to 1 pulse is 7.85 / 1024=0.007cm; the number of pulses corresponding to 1cm is 1024 / 7.85=130.5).

[0017] The specific implementation method is as follows: After the on-site elevator is installed, the technicians adjust the door of each floor. After all the doors are adjusted, the main control board sets parameter 1 to learn the door locks, that is, the elevator automatically runs to each floor to open and close the door once (this operation command is sent to the car top board and the door controller integrated device through the CAN2 communication bus by the main control board). After each floor is learned, the main control board records the number of pulses of the door machine motor of each floor through parameters 2~n+1, where n is the number of doors. The main control board also has parameters n+2 and parameters n+3~2n+2. Parameter n+2 is the number of pulses after the door of the current floor is closed when the elevator stops normally, and parameters n+3~2n+2 are the pulses of the doors of each floor. The number of errors is determined by comparing parameters 2~n+1 with parameter n+2. When the error difference is ±39, the number of pulse errors is recorded once. When any of the parameters n+3~2n+2 exceeds 5 times, the main control board commands the server to send maintenance information to the maintenance personnel through the CAN1 communication bus to perform pre-maintenance of the floor door (the maintenance personnel can also perform pre-maintenance of the floor door by checking the parameters during daily maintenance), and readjust the floor door. After the maintenance personnel readjust the floor door, self-learning of the current floor door is performed, and the error parameter is automatically restored to 0 and recalculated (a parameter can also be added for self-learning of the floor door only on the current floor. After learning, only the error number of the current floor is cleared).

[0018] The following example takes 3 floors, 3 stations and 3 doors (door opening width 900cm):

[0019] After the on-site elevator is installed, the technicians adjust the door of each floor. After all the doors are adjusted, the main board sets parameter 1 for door lock learning (that is, the elevator automatically runs to each floor and opens and closes the door once), parameter 2 records the number of pulses of the door closed on the 1st floor 117450, parameter 3 records the number of pulses of the door closed on the 2nd floor 117455, parameter 4 records the number of pulses of the door closed on the 3rd floor 117453; parameter 5 is the current pulse number (that is, the number of pulses of the door closed on the current floor when the elevator stops normally); parameters 6 to 8 are the number of errors [parameter 6 is the number of pulse errors of the door on the 1st floor, parameter 7 is the number of pulse errors of the door on the 2nd floor , parameter 8 is the number of door errors on the 3rd floor. Note: This error is recorded only when parameter 5 differs from the number of pulses closed on the corresponding floor by ±39 (i.e. if the elevator currently stops at the 1st floor and closes the door normally, parameter 5 is 117411 or 117489, which differs by ±39 relative to parameter 2, and parameter 6 should be recorded as 1), and is converted into a distance of 3mm (the normal door lock contact block is 15mm, half of which is 7.5mm). When any of the error times of parameters 6 to 8 exceeds 5 times, the main control board commands the server to send maintenance information to the maintenance personnel through the CAN1 communication bus to perform pre-maintenance of the floor door.

[0020] In summary, this method can track and locate the door lock contacts. By comparing the number of pulses of the door machine motor on each floor, when the number of pulses has an error and exceeds a certain number of times, maintenance information is sent to the maintenance personnel to perform pre-maintenance of the floor door, thereby avoiding floor door lock failures and ensuring the safe use of the elevator.

[0021] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for pre-maintenance of elevator door locks, characterized in that: It is realized by an elevator floor door lock control system consisting of a server, a main control board, a car top board and a door controller integrated device, and a door machine motor. The main control board is connected to the server through a CAN1 communication bus, and the main control board is connected to the car top board and the door controller integrated device through a CAN2 communication bus. The car top board and the door controller integrated device are connected to the door machine motor through a PG line and a phase line, respectively. After the on-site elevator is installed, each floor door is adjusted. After all floor doors are adjusted, the main control board sets parameter 1 to learn the floor door lock. After each floor is learned, the main control board records the number of pulses of the door machine motor rotation on each floor through parameters 2~n+1, where n is the number of doors. If there is an error in the number of pulses and exceeds a certain number of times, the main control board commands the server to send maintenance information to the maintenance personnel through the CAN1 communication bus to perform floor door pre-maintenance and readjust the floor door.

2. The method for pre-maintenance of elevator door locks according to claim 1, characterized in that: When learning the floor door locks, the main control board sends the operation command to the car top board and the door controller integrated device through the CAN2 communication bus, so that the elevator automatically runs to each floor and opens and closes the door once.

3. The method for pre-maintenance of elevator door locks according to claim 1, characterized in that: The main control board also has parameters n+2 and parameters n+3~2n+2. Parameter n+2 is the number of pulses after the door of the current floor is closed when the elevator stops normally. Parameters n+3~2n+2 are the number of pulse errors of the doors on each floor. By comparing parameters 2~n+1 with parameter n+2, the number of pulse errors is recorded once when the error differs by ±39.

4. The method for pre-maintenance of elevator door locks according to claim 3, characterized in that: When any of the parameters n+3 to 2n+2 exceeds 5 times, the main control board commands the server to send maintenance information to the maintenance personnel through the CAN1 communication bus to perform pre-maintenance of the floor door.

5. The method for pre-maintenance of elevator door locks according to claim 1, characterized in that: After the maintenance personnel readjust the floor door, the current floor door self-learning is performed again, and the error parameter automatically returns to 0 and is recalculated.

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