A control method for elevator re-leveling

Abstract

The present invention discloses a control method for elevator re-leveling, which intelligently determines whether to perform re-leveling operation under different working conditions according to the actual operation status of the elevator, thereby basically avoiding the possibility of re-leveling operation without re-leveling operation, greatly improving the operation efficiency of the elevator, and enhancing the safety and riding experience.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator detection, and in particular to a control method for elevator re-leveling. Background Art

[0002] After the elevator stops at a floor, the degree to which the car floats up or down is directly related to the change in the car load and the length of the steel wire rope on the car. In the daily use of the elevator, since the elevator may be temporarily used to transport goods, the height of the ride area needs to be consistent with the height of the car to facilitate the handling of goods and ensure the comfort of people entering and exiting the elevator. In order to eliminate this height difference, general freight elevators and elevators with a lifting height exceeding a certain value are equipped with a "re-leveling" function. That is, the sensor is used to sense the height difference between the car and the ride area, and the car position is corrected in real time to keep the car near the ride area height.

[0003] After searching, the Chinese patent invention patent application publication number CN111532914A discloses a control method for electric elevator leveling and an elevator: the correction amount of the elevator car when leveling at the next stop layer is determined according to the current load rate, and then the leveling position of the elevator car at the next stop layer is output according to the correction amount. There is no need to set up complex circuit components and mechanical components, and the elevator car can be corrected without going through complicated calculation procedures, and there is no need to increase additional costs, so that the probability of the elevator car leaving the limit position at the leveling position of the next stop layer is reduced, thereby reducing the probability of the elevator car door opening and re-leveling action, thereby improving the safety of the elevator. This patent adjusts the leveling position by judging the car load, thereby reducing the probability of re-leveling action, which does work to a certain extent, but it does not combine the use conditions of the elevator, which may affect the use on site and cause inconvenience.

[0004] Generally, freight elevators are equipped with a "re-leveling" function; in addition, this function is also selected for taller or higher-end business buildings. High-rise buildings have basically fixed passenger usage patterns, and the time period with higher frequency of use is called peak period. We often encounter that when people or goods have entered the car, the elevator is still performing "re-leveling" operation, and at this time, the "re-leveling" operation is meaningless because there is no need to enter or exit the car. This will waste passengers' time and electricity, and reduce the overall capacity of the elevator. When people perform "re-leveling" actions when entering and exiting, it may cause passengers to fall or psychologically panic, affecting the riding experience. Summary of the invention

[0005] The technical problem to be solved by the present invention is to propose a more reasonable solution to the contradiction between the demand for re-leveling and the elevator operation efficiency in actual use of the elevator.

[0006] In order to realize the above invention, a control method for elevator re-leveling of the present invention is characterized by: intelligently judging whether to perform re-leveling operation according to the actual operation status of the elevator, and the specific steps are as follows:

[0007] 1) When the elevators are in a group operation, one or several elevators are set to perform re-leveling operation, and other elevators do not execute the re-leveling operation logic; the elevator determines whether the elevator needs to perform re-leveling operation according to the requirements of the group controller. If it needs to be executed, it goes to step 2), otherwise it goes to step 8);

[0008] 2) Whether the elevator should perform re-leveling operation in this period. If necessary, proceed to step 3), otherwise proceed to step 8);

[0009] 3) The elevator determines whether it is currently running during busy hours based on the elevator call information, the frequency of operation, and the load in the car. If it is not running during busy hours, it proceeds to step 4), otherwise it proceeds to step 8);

[0010] 4) In the door open state, when the elevator detects that there is no door closing command in the elevator car, if there is no door closing command, it goes to step 5), otherwise it goes to step 8);

[0011] 5) In the door open state, whether the elevator detects the door opening command or the elevator call command of the current floor, if so, go to step 7), otherwise go to step 6);

[0012] 6) In the door open state, the door safety protection device does not work or the load in the car changes. If so, go to step 8), otherwise go to step 7);

[0013] 7) Execute according to the re-leveling operation logic and end;

[0014] 8) Do not perform re-leveling operation. If it is already being executed, stop the re-leveling operation immediately and run according to the logic without re-leveling function.

[0015] In a preferred embodiment of the present invention, the steps 1) to 6) are configured by parameters to determine whether to perform the judgment.

[0016] In a preferred embodiment of the present invention, in the step 1), the group controller is configured with the settings of the re-leveling enable and time period of each elevator in the group, and the group controller sends the instruction of whether the elevator executes the re-leveling in the current time period to each elevator according to the configuration. The elevator determines whether the elevator needs to execute the re-leveling operation according to the re-leveling instruction required by the group controller. If the group controller configures the re-leveling enable parameter of the elevator in the current time period to be enabled, the group controller sends the re-leveling enable instruction when communicating with the elevator, and the elevator executes the logic of the re-leveling operation. If the re-leveling enable parameter is not enabled in the current time period, the group controller sends the re-leveling disable instruction when communicating with the elevator, and the elevator does not execute the re-leveling operation.

[0017] In a preferred embodiment of the present invention, in the step 2), whether the elevator performs re-leveling operation in the current time period is set specifically refers to the time period in which the elevator controller is configured with the re-leveling enable and time period settings. If the elevator controller configures the re-leveling enable parameter in the current time period to be enabled, the elevator executes the logic of re-leveling operation. If the elevator controller configures the re-leveling enable parameter in the current time period to be disabled, the elevator does not perform re-leveling operation.

[0018] In a preferred embodiment of the present invention, in step 3), the elevator determines whether it is currently operating during busy hours based on the elevator call information, the frequency of operation, and the load in the car. Specifically, if the elevator call information allocated to the elevator exceeds a set value, such as 40% of the total number of elevator calls; or the frequency of elevator operation, that is, the power-on rate, reaches a set value, such as the power-on rate reaches 50%; or the service load of multiple floors connected reaches a set value, such as 60% of the rated load, then it is determined to be busy.

[0019] Due to the adoption of the above technical solution, the possibility of re-leveling without re-leveling is basically avoided, which greatly improves the operating efficiency of the elevator and enhances the safety and riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a flow chart of the control method for elevator re-leveling. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1 The present invention provides a control method for elevator re-leveling, which intelligently determines whether to perform re-leveling operation according to the actual operation status of the elevator. The specific steps are as follows:

[0023] 1) When the elevators are in a group operation, one or several elevators are set to perform re-leveling operation, and other elevators do not execute the re-leveling operation logic. The elevator determines whether it needs to perform re-leveling operation according to the requirements of the group controller. If it needs to be executed, it goes to step 2), otherwise it goes to step 8);

[0024] 2) Whether the elevator should perform re-leveling operation in this period. If necessary, proceed to step 3), otherwise proceed to step 8);

[0025] 3) The elevator determines whether it is currently running during busy hours based on the elevator call information, the frequency of operation, and the load in the car. If it is not running during busy hours, it proceeds to step 4), otherwise it proceeds to step 8);

[0026] 4) In the door open state, when the elevator detects that there is no door closing command in the elevator car, if there is no door closing command, it goes to step 5), otherwise it goes to step 8);

[0027] 5) In the door open state, whether the elevator detects the door opening command or the elevator call command of the current floor, if so, go to step 7), otherwise go to step 6);

[0028] 6) In the door open state, the door safety protection device does not work or the load in the car changes. If so, go to step 8), otherwise go to step 7);

[0029] 7) Execute according to the re-leveling operation logic and end;

[0030] 8) Do not perform re-leveling operation. If it is already being executed, stop the re-leveling operation immediately and run according to the logic without re-leveling function.

[0031] In the steps 1) to 6), whether to perform this judgment is determined by parameter configuration.

[0032] In step 1), the group controller is configured with the settings of the re-leveling enable and time period of each elevator in the group. The group controller sends the instruction of whether the elevator executes the re-leveling in the current time period to each elevator according to the configuration. The elevator determines whether the elevator needs to execute the re-leveling operation according to the re-leveling instruction required by the group controller. If the group controller configures the re-leveling enable parameter of the elevator in the current time period to be enabled, the group controller sends the re-leveling enable instruction when communicating with the elevator, and the elevator executes the logic of the re-leveling operation. If the re-leveling enable parameter is not enabled in the current time period, the group controller sends the re-leveling disable instruction when communicating with the elevator, and the elevator does not execute the re-leveling operation.

[0033] In step 2), whether the elevator performs re-leveling operation in this time period is set specifically refers to the time period in which the elevator controller is configured with the re-leveling enable and time period settings. If the elevator controller configures the re-leveling enable parameter in this time period to be enabled, the elevator executes the logic of re-leveling operation. If the elevator controller configures the re-leveling enable parameter in this time period to be disabled, the elevator does not perform re-leveling operation.

[0034] In step 3), the elevator determines whether it is currently operating during busy hours based on the elevator call information, the frequency of operation, and the load in the car. Specifically, if the elevator call information allocated to the elevator exceeds a set value, such as 40% of the total number of elevator calls; or the frequency of elevator operation, that is, the power-on rate, reaches a set value, such as the power-on rate reaches 50%; or the service load of multiple floors connected reaches a set value, such as 60% of the rated load, then it is determined to be busy.

Claims

1. A control method for elevator re-leveling, characterized by: According to the actual operation status of the elevator, it is intelligently determined whether to perform re-leveling operation. The specific steps are as follows: 1) When the elevators are in a group operation, one or several elevators are set to perform re-leveling operation, and other elevators do not execute the re-leveling operation logic; the elevator determines whether it needs to perform re-leveling operation according to the requirements of the group controller. If it needs to be executed, go to step 2), otherwise go to step 8); 2) Whether the elevator should perform re-leveling operation in this period. If necessary, proceed to step 3). Otherwise, proceed to step 8); 3) The elevator determines whether it is currently operating during busy hours based on the elevator call information, the frequency of operation, and the load in the car. If it is not during busy hours, it proceeds to step 4), otherwise it proceeds to step 8); 4) In the door open state, when the elevator detects that there is no door closing command in the elevator car, if there is no door closing command, it goes to step 5), otherwise it goes to step 8); 5) In the door open state, does the elevator detect a door open command or a passenger call command on this floor? If yes, go to step 7), otherwise go to step 6); 6) When the door is open, the door safety protection device does not work or the load in the car changes. If so, go to step 8), otherwise go to step 7); 7) Execute according to the re-leveling operation logic and end; 8) Do not perform re-leveling operation. If it is already being executed, stop the re-leveling operation immediately and run according to the logic without re-leveling function. In the step 1), the group controller is configured with the setting of the re-leveling time period of each elevator in the group, and the group controller sends the instruction of whether the elevator executes the re-leveling in the current time period to each elevator according to the configuration; the elevator determines whether the elevator needs to execute the re-leveling operation according to the re-leveling instruction required by the group controller; if the group controller configures the re-leveling enabling parameter of the elevator in the current time period to be enabled, the group controller sends the re-leveling enabling instruction when communicating with the elevator, and the elevator executes the logic of the re-leveling operation; if the re-leveling enabling parameter is not enabled in the current time period, the group controller sends the re-leveling disabling instruction when communicating with the elevator, and the elevator does not execute the re-leveling operation; In the step 2), whether the elevator performs re-leveling operation in the current time period is set specifically refers to the time period in which the elevator controller is configured with the re-leveling enable and time period settings. If the elevator controller configures the re-leveling enable parameter in the current time period to be enabled, the elevator executes the logic of re-leveling operation. If the elevator controller configures the re-leveling enable parameter in the current time period to be disabled, the elevator does not perform re-leveling operation.

2. The elevator re-leveling control method according to claim 1, characterized in that: In the steps 1) to 6), whether to perform this judgment is determined by parameter configuration.

3. The elevator re-leveling control method according to claim 1, characterized in that: In the step 3), the elevator determines whether it is currently operating during busy hours based on the elevator call information, the frequency of operation, and the load in the car. Specifically, if the elevator call information allocated to the elevator exceeds a set value, or the frequency of elevator operation, i.e., the power-on rate, reaches a set value, or the service load of multiple floors connected reaches a set value, it is determined to be busy.

Images