Elevator group management method

Abstract

The application discloses an elevator group management method, which comprises the following steps: judging whether there is a backlog floor formed by a passenger who cannot take an elevator in time and stays in a waiting hall according to elevator operation information and a passenger boarding request signal; when the passenger backlog floor exists, a backlog floor group management method is used to group manage the elevators in the elevator group; when a to-arrive elevator which will arrive at the backlog floor is monitored, at least one of the passenger boarding request signals which takes the backlog floor as a departure floor and has not been responded is selected as a selected passenger boarding request signal, and the selected passenger boarding request signal is distributed to the to-arrive elevator, so that the to-arrive elevator becomes a responding elevator of the selected passenger boarding request signal. The application can effectively reduce the calculation load of the group management system.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevators, and particularly belongs to an elevator group management method. BACKGROUND

[0002] For the occasion of being equipped with multiple elevators at the same time, an elevator group management system is usually set up at present, so as to optimize the deployment of elevators, thereby improving the operation efficiency of the elevators and shortening the waiting time of passengers.

[0003] At present, the existing elevator group management system (such as CN201580085203.8) is mainly based on the elevator user's boarding request, that is, after receiving a new boarding request signal, a suitable elevator is selected from all elevators in the group management system to be allocated to the boarding request signal, and the selected elevator is taken as the response elevator of the boarding request signal. In this allocation process, the selection range is all elevators in the group management system, the selected object is the selected response elevator (an elevator in the group control system), and the allocation target is the boarding request signal (i.e. the passenger). In this allocation mode, the group management system needs to execute the group management algorithm every time a new boarding request signal is received, so as to select the response elevator from all elevators and allocate it to the boarding request signal. Such allocation mode has obvious shortcomings during the peak period of using elevators, specifically, because the number of boarding request signals of passengers during the peak period of using elevators is very large and the time interval between adjacent boarding request signals is very short, the group management system needs to repeatedly execute the group management algorithm, thereby resulting in a very large total calculation amount.

[0004] Therefore, how to reduce the calculation load of the elevator group management system during the peak period of using elevators has become a technical problem to be solved. SUMMARY

[0005] The technical problem to be solved by the present application is to provide an elevator group management method, which can effectively reduce the calculation load of the elevator group management system during the peak period of using elevators.

[0006] In order to solve the above problems, the elevator group management method provided by the present application judges whether there is a backlog floor formed by the accumulation of passengers who cannot board the elevator in time and stay in the waiting hall according to the elevator operation information and the boarding request signal of the waiting passengers, and when the passenger backlog floor exists, the elevator group management method is used to manage the elevators in the elevator group.

[0007] The method for managing the group of backlog floors is to monitor a to-arrive elevator that is going to arrive at the backlog floors, select at least one of the boarding request signals that have the backlog floors as the departure floors and have not been responded, and assign the selected boarding request signal to the to-arrive elevator, so that the to-arrive elevator becomes the responding elevator of the selected boarding request signal.

[0008] The responding elevator refers to an elevator that stops at the departure floor corresponding to the boarding request signal and has the next running direction consistent with the expected boarding direction of the boarding request signal, so that the passenger sending the boarding request signal can enter the elevator car and finally reach the destination floor.

[0009] Further, the backlog floor refers to a floor that meets at least one of the following conditions:

[0010] Condition 1: the number of boarding request signals that have a certain floor as the departure floor and have not been responded exceeds a set threshold value;

[0011] Condition 2: the ratio of the number of boarding request signals that have a certain floor as the departure floor and have not been responded to the number of all boarding request signals that have the floor as the departure floor within a given time period exceeds a ratio threshold value;

[0012] Condition 3: the number of all unresponded boarding request signals in the building where the elevator is located exceeds a set threshold value, and the concentration of the unresponded boarding request signals exceeds a concentration threshold value;

[0013] Condition 4: the current passenger flow pattern is a divergent passenger flow with a certain floor as the departure floor.

[0014] Further, the concentration is calculated in any of the following ways:

[0015] Way 1: the ratio of the number of departure floors corresponding to all unresponded boarding request signals to the number of all floors in the building where the elevator is located;

[0016] Way 2: among all unresponded boarding request signals corresponding to the departure floors, the ratio of the number of unresponded boarding request signals to the number of all unresponded boarding request signals, with the α floors corresponding to the largest number of boarding request signals as the departure floors, where α≥1;

[0017] Way 3: the ratio or difference of the number of boarding request signals corresponding to the departure floor with the largest number of boarding request signals to the number of boarding request signals corresponding to the departure floor with the smallest number of boarding request signals in the building where the elevator is located;

[0018] The ratio of the number of the unresponded elevator call signals to the number of all floors corresponding to the unresponded elevator call signals.

[0019] Further, the method for managing the group of congested floors further comprises: monitoring the arrival order of the elevators to the congested floors according to the elevator operation information; determining the to-be-arriving elevator according to the arrival order; estimating the moving time required for the to-be-arriving elevator to move to the congested floor according to the operation information of the to-be-arriving elevator; and determining the selected elevator call signal to be responded by the to-be-arriving elevator when the moving time required for the to-be-arriving elevator to move to the congested floor is equal to or greater than the specified time advance value.

[0020] Further, the method for managing the group of congested floors further comprises: determining a monitoring position according to the time advance value and the operation information of the to-be-arriving elevator, so that the moving time required for the to-be-arriving elevator to move to the congested floor from the monitoring position is equal to or greater than the specified time advance value.

[0021] Further, the method for managing the group of congested floors further comprises: determining the monitoring position according to the following steps:

[0022] Step S1, determining the maximum moving distance of the to-be-arriving elevator within the time advance value;

[0023] Step S2, judging whether there is a to-be-stopped floor within the maximum moving distance of the to-be-arriving elevator, if yes, entering step S3, otherwise, entering step S6;

[0024] Step S3, estimating the additional time consumed by the elevator due to stopping at the to-be-stopped floor, the additional time consumed being the difference between the time consumed by the elevator for stopping at the to-be-stopped floor and the time consumed by the elevator for directly passing through the to-be-stopped floor;

[0025] Step S4, calculating the moving distance of the to-be-arriving elevator within the additional time consumed;

[0026] Step S5, taking the difference between the maximum moving distance and the moving distance of the to-be-arriving elevator within the additional time consumed as a new maximum moving distance;

[0027] Step S6, taking the position obtained by moving the maximum moving distance in the direction opposite to the direction in which the to-be-arriving elevator moves to the congested floor as the monitoring position.

[0028] Further, when the congested floor is a non-terminal floor and the unresponded elevator call signal corresponding to the congested floor has two different expected directions of movement, the monitoring position has two and is located on the two sides of the congested floor respectively.

[0029] Further, when the accumulated floor is a non-terminal floor and the unresponded call request signal corresponding to the accumulated floor has two different expected call directions and the stop floor of the to-arrive elevator is only the accumulated floor, the accumulated floor group management method determines the restart direction of the to-arrive elevator after stopping at the accumulated floor according to the call request signal with the accumulated floor as the departure floor, selects at least one from all unresponded call signals with the accumulated floor as the departure floor and the expected call direction consistent with the restart direction as the selected call request signal, and assigns the selected call request signal to the to-arrive elevator, so that the to-arrive elevator becomes the responding elevator of the selected call request signal.

[0030] Further, the accumulated floor group management method determines the restart direction of the to-arrive elevator after stopping at the accumulated floor according to the principle of the highest efficiency of transporting passengers away from the accumulated floor and / or the principle of the longest waiting time of passengers.

[0031] Further, when there are multiple accumulated floors, the accumulated floor group management method selects the accumulated floor according to the principle of the highest efficiency of transporting passengers away from the accumulated floor and / or the principle of the longest waiting time of passengers, and assigns the call request signal to the elevator to arrive at the accumulated floor by the method of the preceding paragraph

[0013] or paragraph

[0014] .

[0032] Further, the accumulated floor group management method first divides the accumulated floor into upbound accumulated floors and downbound accumulated floors according to the expected call direction of the call request signal with the accumulated floor as the departure floor, then selects the accumulated floor according to the principle of the highest efficiency of transporting passengers away from the accumulated floor and / or the principle of the longest waiting time of passengers for each upbound accumulated floor and each downbound accumulated floor, and assigns the call request signal to the elevator to arrive at the accumulated floor by the method of the preceding paragraph

[0013] or paragraph

[0014] .

[0033] Further, when there are unresponded call request signals corresponding to the destination floor of the preceding accumulated floor or unresponded call request signals with the latter accumulated floor as the destination floor between two adjacent accumulated floors in the same direction, the accumulated floor group management method preferentially selects the call request signal with the latter accumulated floor as the destination floor or the call request signal with the destination floor located between the two adjacent accumulated floors in the same direction as the selected call request signal and assigns it to the to-arrive elevator.

[0034] Further, when multiple accumulated floors with opposite desired directions of elevator request signals exist simultaneously and a destination floor of an elevator request signal with a departure floor of one of the accumulated floors is an accumulated floor with an opposite desired direction of elevator request signals, the accumulated floor group management method takes the elevator request signal with the departure floor of the one accumulated floor and the destination floor of the second accumulated floor as a selected elevator request signal, and assigns the selected elevator request signal to a to-arrive elevator that will arrive at the one accumulated floor, so that the to-arrive elevator becomes a responding elevator of the selected elevator request signal.

[0035] Further, the accumulated floor group management method determines a selected elevator request signal with the to-arrive elevator as a responding elevator from elevator request signals with the accumulated floor as a departure floor and not responded to according to available resources of the to-arrive elevator and required resources of elevator users with the accumulated floor as a departure floor, so that a total of required resources of elevator users corresponding to the selected elevator request signal is not greater than available resources of the to-arrive elevator.

[0036] Further, the accumulated floor group management method sorts corresponding elevator request signals in order of waiting time of elevator users with the accumulated floor as a departure floor from long to short, and selects the selected elevator request signal from the sorted elevator request signals from front to back, so that a total of required resources of elevator users corresponding to the selected elevator request signal is not greater than available resources of the to-arrive elevator.

[0037] Further, the accumulated floor group management method first sorts corresponding elevator request signals in order of waiting time of elevator users with the accumulated floor as a departure floor from long to short, then selects an optional elevator request signal from the sorted elevator request signals from front to back, a total of required resources of elevator users corresponding to the optional elevator request signal is greater than available resources of the to-arrive elevator but not greater than α times of available resources of the to-arrive elevator, where α > 1, then enumerates all possible elevator request signal combination groups composed of the optional elevator request signal, and finally selects a selected elevator request signal combination from all elevator request combinations and takes elevator request signals contained in the selected elevator request signal combination as the selected elevator request signal, a total of required resources of elevator users corresponding to the elevator request signals in the selected elevator request signal combination is not greater than and closest to available resources of the to-arrive elevator, or a number of destination floors corresponding to the elevator request signals in the selected elevator request signal combination is the smallest.

[0038] Further, when there is a waiting time of an elevator user in the unresponded elevator call signals with the backlog floor as the departure floor and exceeding a time threshold, the backlog floor group management method directly includes the elevator call signal with the waiting time exceeding the time threshold into the selected elevator call signal, and then selects the selected elevator call signal from the remaining elevator call signals according to the method of the preceding paragraph

[0020] or

[0021] .

[0039] Compared with the prior art, the present application has the following beneficial effects:

[0040] Firstly, the present application monitors the arriving elevator to the backlog floor and further reasonably assigns the elevator call signal to the arriving elevator, since one arriving elevator to the backlog floor can respond to multiple elevator call signals, compared with the conventional elevator group management system which executes the group management algorithm to select the appropriate responding elevator for the newly received elevator call signal from all elevators each time a new elevator call signal is received, the present application selects the elevator call signal from the unresponded elevator call signals with the backlog floor as the departure floor and assigns it to the arriving elevator when the arriving elevator arrives at the backlog floor, thus no need to execute the group management method to assign the responding elevator for each elevator call signal, which can greatly reduce the execution times of the group management algorithm, thereby reducing the calculation load.

[0041] Secondly, when selecting the selected elevator call signal for the arriving elevator to the backlog floor, the present application only needs to determine the elevator arriving at the backlog floor according to the position information of the elevator car, and select the selected elevator call signal to be responded according to the destination floor corresponding to the elevator call signal, thereby realizing the group management of each elevator. Compared with the conventional group management system, the present application needs less information and the group management algorithm is simpler, so the calculation amount of the group management is also smaller. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 Part of the flow chart of the elevator group management method of the first embodiment of the present application. DETAILED DESCRIPTION

[0043] The present application will be described in more detail by the following specific embodiments with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in the present specification. In the following description, specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be carried out or applied by other different specific embodiments, and each detail in the present specification can be based on different views and applications, and those skilled in the art can make various similar generalizations and replacements without departing from the spirit of the present application. EMBODIMENT

[0044] In the elevator group management method of the embodiment, whether there is a backlog floor formed by a waiting passenger who cannot take an elevator in time and stays in a waiting hall is determined according to elevator operation information and a passenger elevator call signal, and when there is a waiting passenger backlog floor, an elevator group management method is used to manage the elevators in the elevator group. Here, the elevator operation information at least includes the current position and the running direction of each elevator, and the passenger elevator call signal at least includes the departure floor, the desired elevator call direction or the destination floor of the waiting passenger, and the number information of the waiting passenger.

[0045] The backlog floor group management method is when a to-arrive elevator that will arrive at the backlog floor is monitored, at least one of the elevator call signals that have the backlog floor as the departure floor and have not been responded to is selected as the selected elevator call signal, and the selected elevator call signal is assigned to the to-arrive elevator, so that the to-arrive elevator becomes the responding elevator of the selected elevator call signal.

[0046] The responding elevator refers to an elevator that stops at the departure floor corresponding to the elevator call signal and the next running direction of the elevator is consistent with the desired elevator call direction of the elevator call signal, so that the waiting passenger who sends the elevator call signal can enter the elevator car and eventually reach the destination floor.

[0047] Among them, the backlog floor refers to a floor that meets at least one of the following conditions:

[0048] Condition 1: The number of elevator call signals that have a certain floor as the departure floor and have not been responded to exceeds a set threshold value;

[0049] Condition 2: The ratio of the number of elevator call signals that have a certain floor as the departure floor and have not been responded to to the number of all elevator call signals that have the floor as the departure floor within a given time period exceeds a ratio threshold value;

[0050] Condition 3: The number of all unresponded elevator call signals in the building where the elevator is located exceeds a set threshold value, and the concentration of the unresponded elevator call signals exceeds a concentration threshold value;

[0051] Condition 4: The current passenger flow pattern is a divergent passenger flow (from a certain floor, the destination floor is multiple floors) with a certain floor as the departure floor.

[0052] Further, the concentration is calculated in any of the following ways:

[0053] Manner 1, from the perspective of floors, taking the ratio of the number of floors corresponding to all unresponded call signals and the number of all floors of the building where the elevator is located as the concentration of unresponded call signals, when the ratio exceeds the concentration threshold, taking the floors corresponding to all unresponded call signals as the backlog floors;

[0054] Manner 2, from the distribution of call signals, taking the ratio of the number of unresponded call signals and the number of all unresponded call signals as the concentration of unresponded call signals, when the ratio exceeds the concentration threshold, taking the α floors corresponding to the largest number of unresponded call signals as the backlog floors, where α≥1;

[0055] Manner 3, from historical operation information, taking the ratio or difference of the number of call signals corresponding to the floor with the largest number of call signals and the number of call signals corresponding to the floor with the smallest number of call signals as the concentration of unresponded call signals, when the ratio or difference exceeds the concentration threshold, taking the floor with the largest number of call signals as the backlog floor; for occasional large passenger flows such as meeting dispersal, the meeting end is generally directly input to the elevator group management system as an event and other strategies are used to deal with it;

[0056] Manner 4, combining call signals and floor distribution, taking the ratio of the number of unresponded call signals and the number of all floors corresponding to unresponded call signals as the concentration of unresponded call signals, when the ratio exceeds the concentration threshold, taking all floors corresponding to unresponded call signals as the backlog floors.

[0057] In the foregoing description, whether it is the number of call signals or the number of floors corresponding to call signals, it is the cumulative value of the corresponding physical quantity in a given monitoring period or the value of the corresponding physical quantity per unit time after conversion.

[0058] In practical applications, the scenario of forming backlog floors is very common, for example, the lobby on the first floor of the building during the morning rush hour of the office building will often have many passengers waiting to take the elevator; for example, after lunch, the dining personnel will take the elevator from the floor where the restaurant is located to return to their work floor, forming a post-lunch peak, and when the restaurant is located on a non-terminal floor (a middle floor of the building) of the building, the post-lunch peak will simultaneously appear two divergent passenger flows of an uplink peak and a downlink peak with the floor where the restaurant is located as the departure floor, and the dining personnel will wait for the elevator at the floor where the restaurant is located after registering their call signal.

[0059] The accumulated floor group management method monitors the arrival order of each elevator to the accumulated floor according to the elevator operation information, determines the elevator to be arrived according to the arrival order, estimates the moving time required for the elevator to be arrived to move to the accumulated floor according to the operation information of the elevator to be arrived, and starts to determine the selected call request signal of the responding elevator with the elevator to be arrived as the responding elevator at the time when the required moving time is equal to or greater than a specified time advance value. The accumulated floor group management method determines a monitoring position according to the time advance value and the operation information of the elevator to be arrived, so that the moving time required for the elevator to be arrived to move to the accumulated floor from the monitoring position is equal to or greater than the specified time advance value.

[0060] The elevator to be arrived is determined as the elevator that is moving to the accumulated floor and has the minimum distance between the current position and the monitoring position according to the current position and the moving direction of each elevator in the elevator operation information, where it is assumed that there is no stoppable floor between the monitoring position and the accumulated floor, and if there is a stoppable floor, whether the elevator stops at the stoppable floor between the monitoring position and the accumulated floor is considered when determining the elevator to be arrived in addition to the aforementioned distance.

[0061] Considering that there can be a certain distance between the waiting position of the passenger and the responding elevator, a certain moving time is required for the passenger to move from the waiting position to the responding elevator, a certain algorithm execution time is required for the group management method to select the selected call request signal, and a certain time is required for the selected call request signal to be selected and informed to the passenger until the passenger actually receives the informed information and starts to move to the responding elevator, therefore a time advance value that is not shorter than the sum of the aforementioned required times is set to ensure the time when the selected call request signal is determined.

[0062] Specifically, as shown in Figure 1 The accumulated floor group management method determines the monitoring position according to the following steps:

[0063] Step S1, determining the maximum moving distance of the elevator to be arrived within the time advance value;

[0064] Step S2, judging whether there is a stoppable floor within the maximum moving distance of the elevator to be arrived, if there is, entering step S3, otherwise, turning to step S6;

[0065] Step S3, estimating the additional time consumed by the elevator due to stopping at the stoppable floor, the additional time consumed being the difference between the time used by the elevator to stop at the stoppable floor and the time used by the elevator to directly pass through the stoppable floor;

[0066] Step S4, calculating the moving distance of the elevator to be arrived at in the additional time consumed;

[0067] Step S5, taking the difference between the maximum moving distance and the moving distance of the elevator to be arrived at in the additional time consumed as a new maximum moving distance;

[0068] Step S6, taking the position obtained after moving the maximum moving distance in the direction opposite to the direction in which the elevator to be arrived at drives to the accumulated floor as the monitoring position.

[0069] For the aforementioned office building morning rush hour scenario, since the 1st floor lobby as the accumulated floor is a terminal floor, the expected direction of the elevator request signal is necessarily upward, and the elevator is necessarily downward to arrive at the 1st floor and then reverses the direction, thus only the position above the 1st floor lobby and the distance between the position and the 1st floor lobby equaling the maximum moving distance needs to be taken as the monitoring position.

[0070] It is to be noted that when the accumulated floor is a non-terminal floor and the unresponded elevator request signal corresponding to the accumulated floor has two different expected directions of the elevator, the monitoring position has two and is located on the two sides of the accumulated floor respectively.

[0071] For the aforementioned dining end return to work scenario, since the elevator can run downward from above the accumulated floor (the floor on which the restaurant is located) to gradually approach the accumulated floor, or run upward from below the accumulated floor to gradually approach the accumulated floor, thus there are two possible monitoring positions. In actual determination of the monitoring position, the direction from the monitoring position to the accumulated floor can be made consistent with the running direction of the elevator. In this way, when the elevator runs downward from above the accumulated floor to gradually approach the accumulated floor, the monitoring position is only the position above the accumulated floor and the distance between the position and the accumulated floor equaling the maximum moving distance, and when the elevator runs upward from below the accumulated floor to gradually approach the accumulated floor, the monitoring position is only the position below the accumulated floor and the distance between the position and the accumulated floor equaling the maximum moving distance.

[0072] In the traditional elevator group management system, the group management algorithm is executed once every time a new elevator request signal is received to select and assign a responding elevator to the newly received elevator request signal from all elevators, compared with which, the embodiment monitors the elevator to be arrived at the accumulated floor, and further selects an elevator request signal from the unresponded elevator request signals with the accumulated floor as the departure floor and assigns the elevator to the elevator to be arrived at when the elevator to be arrived at arrives at the accumulated floor, thus the execution times of the group management algorithm can be greatly reduced, and thus the calculation load is reduced. Embodiment

[0073] In the embodiment one, the present embodiment is limited to the case that the backlog floor is a non-terminal floor of the building where the elevator is located.

[0074] When the backlog floor is a non-terminal floor and the un-responded call request signal corresponding to the backlog floor has two different expected directions of travel and the destination floor of the elevator to be arrived is only the backlog floor, the backlog floor group management method determines the restart direction of the elevator to be arrived when the elevator restarts after stopping at the backlog floor according to the call request signal with the backlog floor as the departure floor, selects at least one from all un-responded call request signals with the backlog floor as the departure floor and the expected direction of travel consistent with the restart direction as the selected call request signal, and assigns the selected call request signal to the elevator to be arrived, so that the elevator to be arrived becomes the responding elevator of the selected call request signal.

[0075] The backlog floor group management method determines the restart direction of the elevator to be arrived when the elevator restarts after stopping at the backlog floor according to the principle of the highest efficiency of transporting passengers away from the backlog floor and / or the principle of the longest waiting time of passengers.

[0076] The present embodiment is for the backlog floor of the non-terminal floor, and the backlog floor may have different expected directions of travel, such as the returning-to-work scene after lunch in the embodiment one where the restaurant is located at the middle floor of the building where the elevator is located. For the call request signal from the destination floor registration system, the expected direction of travel of the call request signal is determined according to the floor where the destination floor registration device is located and the registered destination floor. For the call request signal from the up-down button, the expected direction of travel of the call request signal is already included and no further processing is required.

[0077] Taking the returning-to-work peak scene after lunch as an example, the elevator may not stop at the backlog floor after arriving at the backlog floor (i.e. the elevator does not transport the passengers waiting at the backlog floor), may stop at the backlog floor after arriving at the backlog floor and transport the passengers with the expected direction of travel as down, or may stop at the backlog floor after arriving at the backlog floor and reverse the direction of travel to transport the passengers with the expected direction of travel as up. Here, two problems are involved, whether the elevator stops at the backlog floor after arriving at the backlog floor and the subsequent direction of travel after stopping.

[0078] For whether the elevator stops at the backlog floor after running to the backlog floor, it can be determined whether there is still remaining available resource in the elevator car (such as whether it is full or although it is full but there are passengers who will get off at the backlog floor), when there is remaining available resource, the elevator can be determined to stop, otherwise it does not stop, or when it is determined that there is remaining available resource, further analysis can be made: when there are passengers in the elevator car who enter the car earlier than the backlog floor and the total boarding time of the passengers exceeds a threshold value, or the number of passengers and / or (average and / or longest) waiting time of the front floor of the backlog floor exceeds a threshold value, the elevator to be arrived will not stop at the backlog floor (here, the passengers in the car are preferentially transported or the passengers who meet the set conditions are preferentially responded). When the elevator to be arrived does not stop, the elevator is directly ignored, and the next elevator to be arrived is determined from the remaining elevators and monitored.

[0079] For the elevator to be arrived which will stop at the backlog floor, it is further determined whether the running direction of the elevator to be arrived after stopping at the backlog floor and starting again is to continue to go forward or to reverse and run in reverse. When the destination floor of the passenger in the car of the elevator to be arrived is in front of the backlog floor (relative to the current running direction), the elevator to be arrived must continue to go forward, and at this time only the boarding request signals with the same direction as the current running direction can be assigned to it. When the destination floor of the passenger in the car of the elevator to be arrived is in front of the backlog floor, if the number of boarding request signals of the passengers who are waiting at the backlog floor and expect to board in the same direction as the current running direction is large (absolute number or relative to the total number of boarding request signals of the backlog floor) and / or (average and / or longest) waiting time exceeds a threshold value, or the number of passengers and / or (average and / or longest) waiting time of the front floor of the backlog floor exceeds a threshold value, the elevator to be arrived continues to go forward after leaving the backlog floor, and therefore only the boarding request signals with the same direction as the current running direction can be assigned to it, otherwise the elevator to be arrived will change the current running direction after arriving at the backlog floor, and therefore only the boarding request signals with the opposite direction to the current running direction can be assigned to it.

[0080] It should be noted that after a certain elevator is determined to be the elevator to be arrived, during the period from the determination to the response of the boarding request signal assigned to it (or the period of driving towards the backlog floor again), the elevator should be excluded from the candidate elevators to be arrived. Embodiment

[0081] On the basis of embodiment one and embodiment two, this embodiment details the case where there are multiple backlog floors.

[0082] Specifically, when multiple backlog floors exist simultaneously, the backlog floor group management method selects the backlog floor according to the principle of highest efficiency of transporting passengers away from the backlog floor and / or the principle of longest waiting time of passengers, and then assigns a boarding request signal to the elevator that is about to arrive at the backlog floor according to the method of Embodiment Two.

[0083] Further, the backlog floor group management method first divides the backlog floors into upbound backlog floors and downbound backlog floors according to the expected boarding direction of the boarding request signals with the backlog floors as the departure floors, and then selects the backlog floor according to the principle of highest efficiency of transporting passengers away from the backlog floor and / or the principle of longest waiting time of passengers for each upbound backlog floor and each downbound backlog floor.

[0084] When there exists a destination floor corresponding to an unresponded boarding request signal with the prior backlog floor as the departure floor or an unresponded boarding request signal with the subsequent backlog floor as the destination floor between two adjacent backlog floors in the same direction, the backlog floor group management method prioritizes the boarding request signal with the subsequent backlog floor as the destination floor or the boarding request signal with the destination floor located between the two adjacent backlog floors in the same direction as the selected boarding request signal and assigns it to the elevator that is about to arrive.

[0085] When multiple backlog floors exist simultaneously with opposite expected boarding directions of the boarding request signals and the destination floor of the boarding request signal with one of the backlog floors as the departure floor is the other of the backlog floors with the opposite expected boarding direction of the boarding request signal, the backlog floor group management method selects the boarding request signal with the one of the backlog floors as the departure floor and the other of the backlog floors as the destination floor as the selected boarding request signal, and assigns the selected boarding request signal to the elevator that is about to arrive at the one of the backlog floors, so that the elevator that is about to arrive becomes the responding elevator of the selected boarding request signal.

[0086] When the elevator that is about to arrive selects the selected boarding request signal for the backlog floor, the present embodiment only needs to determine the elevator that is about to arrive at the backlog floor according to the position information of the elevator car, and select the selected boarding request signal that is responded according to the destination floor corresponding to the boarding request signal, so as to realize the group management of each elevator. Compared with the traditional group management system, the present embodiment needs less information, the group management algorithm is simpler, and the calculation amount of group management is smaller. Embodiment

[0087] On the basis of Embodiment One, the present embodiment limits and describes how to assign appropriate boarding request signals to the elevator that is about to arrive.

[0088] Specifically, the method for managing the group of the backlog floors determines the selected call request signals from the call request signals that have the backlog floor as the departure floor and have not been responded, based on the available resources of the elevator to be arrived and the required resources of the elevator users who take the elevator with the backlog floor as the departure floor, so that the total required resources of the elevator users corresponding to the selected call request signals is not greater than the available resources of the elevator to be arrived. For example, when only the load capacity of the elevator is considered, it can be simply understood as the maximum number of passengers that can be taken without causing the elevator to be overloaded, which is the most basic and important requirement for assigning the call request signals to the elevator.

[0089] Further, in order to avoid the waiting time of the waiting elevator users being too long, the waiting elevator users with long waiting time are preferentially assigned. Specifically, the corresponding call request signals are sorted in the order of the waiting time of the elevator users with the backlog floor as the departure floor from long to short, and the selected call request signals are selected from the sorted call request signals from front to back, and the total required resources of the elevator users corresponding to the selected call request signals is not greater than the available resources of the elevator to be arrived.

[0090] Preferably, the method for managing the group of the backlog floors first sorts the corresponding call request signals in the order of the waiting time of the elevator users with the backlog floor as the departure floor from long to short, then selects the optional call request signals from the sorted call request signals from front to back, the total required resources of the elevator users corresponding to the optional call request signals is greater than the available resources of the elevator to be arrived but not greater than the available resources of the elevator to be arrived multiplied by α, where α>1, then enumerates all possible combinations of the call request signals composed of the optional call request signals, and finally selects a selected combination of the call request signals from all the combinations of the call request signals, and takes the call request signals contained in the selected combination of the call request signals as the selected call request signals, the total required resources of the elevator users corresponding to the call request signals in the selected combination of the call request signals is not greater than and closest to the available resources of the elevator to be arrived, or the number of the destination floors corresponding to the call request signals in the selected combination of the call request signals is the smallest.

[0091] It should be noted that when there is a call request signal of the elevator user whose waiting time exceeds the time threshold among the call request signals that have the backlog floor as the departure floor and have not been responded, the method for managing the group of the backlog floors directly includes the call request signal whose waiting time exceeds the time threshold into the selected call request signals, and then selects the selected call request signals from the remaining call request signals by using the aforementioned method of preferentially assigning the waiting elevator users with long waiting time. Embodiments

[0092] On the basis of the four foregoing embodiments, after the selected boarding request signal is determined, the group management method should also inform the corresponding waiting passenger of the allocation result of the boarding request signal, so that the waiting passenger can board the responding elevator in time.

[0093] The specific informing method can vary according to the form in which the waiting passenger registers the boarding request signal. For example, when the waiting passenger registers the boarding request signal by using a mobile phone or other personal mobile terminal that can communicate with the elevator control system, the allocation result can be directly sent to the personal mobile terminal of the waiting passenger; when the waiting passenger registers the boarding request signal by using a public registration device such as a destination floor registration device located in the landing, the method of broadcasting or displaying on a display screen in the elevator waiting hall can be used to remind the waiting passenger. For the latter, the broadcast or display content can include the content of "passengers going to xx floor, please board the A elevator that will arrive soon", if it contains some passengers going to xx floor, the registration time can be used as a distinction, such as "passengers going to xx floor, please board the A elevator that will arrive soon, or passengers going to xx floor (except for those with registration time not exceeding xx seconds), please board the A elevator that will arrive soon", and so on.

[0094] Finally, the group management method of the present application is only applicable to the case where the destination floor and the corresponding number of waiting passengers (such as destination floor registration) can be obtained, and the case where only the departure floor and the desired boarding direction (such as the up-down registration button provided in the landing) can be obtained.

[0095] The above has described the present application in detail through specific embodiments. The foregoing embodiments are only preferred embodiments of the present application, and the present application is not limited to the foregoing embodiments. Equivalent substitutions and improvements made by those skilled in the art without departing from the principles of the present application should be considered as being within the scope of the technical field protected by the present application.

Claims

1. An elevator group management method characterized by comprising: The elevator group management method determines whether there is a backlog floor formed by a waiting passenger who cannot take an elevator in time staying in a waiting hall according to elevator operation information and a passenger call signal, and when there is a waiting passenger backlog floor, a backlog floor group management method is used to group manage the elevators in the elevator group; The backlog floor group management method is to monitor a to-be-arriving elevator when a to-be-arriving elevator is detected to arrive at the backlog floor, take at least one of the passenger call signals that have not been responded to as a selected passenger call signal, and assign the selected passenger call signal to the to-be-arriving elevator, so that the to-be-arriving elevator becomes the responding elevator of the selected passenger call signal; The responding elevator refers to an elevator that stops at the departure floor corresponding to the passenger call signal and has the same running direction as the expected direction of the passenger call signal, so that the waiting passenger who sent the passenger call signal can enter the elevator car and eventually reach the destination floor; The backlog floor group management method monitors the arrival order of each elevator at the backlog floor according to the elevator operation information, determines the to-be-arriving elevator according to the arrival order, estimates the moving time required for the to-be-arriving elevator to arrive at the backlog floor according to the operation information of the to-be-arriving elevator, and determines the selected passenger call signal that takes the to-be-arriving elevator as the responding elevator when the required moving time is equal to or greater than a specified time advance value.

2. The elevator group management method according to claim 1, characterized by, The backlog floor refers to a floor that meets at least one of the following conditions: Condition 1: The number of passenger call signals that take a certain floor as the departure floor and have not been responded to exceeds a set threshold; Condition 2: The ratio of the number of passenger call signals that take a certain floor as the departure floor and have not been responded to to the number of all passenger call signals that take the floor as the departure floor within a given time period exceeds a ratio threshold; Condition 3: The number of all unresponded passenger call signals in the building where the elevator is located exceeds a set threshold, and the concentration of unresponded passenger call signals exceeds a concentration threshold; Condition 4: The current passenger flow pattern is a divergent passenger flow that takes a certain floor as the departure floor.

3. The elevator group management method according to claim 2, characterized by, The concentration is calculated in any of the following ways: Method 1: The ratio of the number of all unresponded passenger call signals to the number of all floors in the building where the elevator is located; Method 2: Among all unresponded passenger call signals, the ratio of the number of the α floors with the most passenger call signals to the number of all unresponded passenger call signals, where α ≥ 1; Method 3: The ratio or difference between the number of passenger call signals corresponding to the floor with the most passenger call signals and the number of passenger call signals corresponding to the floor with the least passenger call signals in the building where the elevator is located; Method 4: The ratio of the number of unresponded passenger call signals to the number of all departure floors corresponding to unresponded passenger call signals.

4. The elevator group management method according to claim 1, characterized by The method determines a monitoring position based on the time advance value and the operation information of the elevator to be arrived, so that the moving time of the elevator to be arrived from the monitoring position to the group of backlog floors is equal to or greater than the specified time advance value.

5. The elevator group management method according to claim 4, characterized by The method determines the monitoring position according to the following steps: Step S1, determining the maximum moving distance of the elevator to be arrived within the time advance value; Step S2, judging whether there is a stop floor within the maximum moving distance of the elevator to be arrived, if yes, entering step S3, otherwise, entering step S6; Step S3, estimating the additional time consumption of the elevator caused by stopping at the stop floor, the additional time consumption being the difference between the time used by the elevator to stop at the stop floor and the time used by the elevator to directly pass through the stop floor; Step S4, calculating the moving distance of the elevator to be arrived within the additional time consumption; Step S5, taking the difference between the maximum moving distance and the moving distance of the elevator to be arrived within the additional time consumption as a new maximum moving distance; Step S6, taking the position obtained by moving the maximum moving distance in the direction opposite to the direction in which the elevator to be arrived moves to the group of backlog floors as the monitoring position.

6. The elevator group management method according to claim 5, characterized by When the group of backlog floors is non-terminal floors and the un-responded call signals corresponding to the group of backlog floors have two different expected directions of movement, the monitoring positions are two and are located on the two sides of the group of backlog floors.

7. The elevator group management method according to claim 1, characterized by, When the group of backlog floors is non-terminal floors and the un-responded call signals corresponding to the group of backlog floors have two different expected directions of movement and the stop floor of the elevator to be arrived is only the group of backlog floors, the method determines the restart operation direction of the elevator to be arrived after stopping at the group of backlog floors and then starting according to the call signals with the group of backlog floors as the departure floors and having the same expected direction of movement as the restart operation direction, selects at least one from all the un-responded call signals as the selected call signal, and assigns the selected call signal to the elevator to be arrived, so that the elevator to be arrived becomes the responding elevator of the selected call signal.

8. The elevator group management method according to claim 7, characterized by The method determines the restart operation direction of the elevator to be arrived after stopping at the group of backlog floors and then starting according to the principle of the highest efficiency of moving the passengers away from the group of backlog floors and / or the principle of the longest waiting time of the passengers.

9. The elevator group management method according to claim 1, characterized by, When there are multiple groups of backlog floors, the method selects the group of backlog floors according to the principle of the highest efficiency of moving the passengers away from the group of backlog floors and / or the principle of the longest waiting time of the passengers, and assigns the call signal to the elevator to be arrived at the group of backlog floors according to the method of claim 7 or 8.

10. The elevator group management method according to claim 9, characterized by The method for managing the group of the accumulated floors first divides the accumulated floors into up-going accumulated floors and down-going accumulated floors according to the expected directions of the elevator call signals with the accumulated floors as the departure floors, then selects the accumulated floors according to the principle of the highest efficiency of transporting the waiting passengers from the accumulated floors and / or the principle of the longest waiting time of the waiting passengers for each up-going accumulated floor and each down-going accumulated floor, and assigns the selected elevator call signals to the elevators to be arrived at the accumulated floors by the method of claim 7 or 8.

11. The elevator group management method according to claim 10, characterized by When there is a destination floor corresponding to the unresponded elevator call signal with the prior accumulated floor as the departure floor or there is an unresponded elevator call signal with the latter accumulated floor as the destination floor between the two adjacent accumulated floors in the same direction, the method for managing the group of the accumulated floors preferentially selects the elevator call signal with the destination floor as the latter accumulated floor or the elevator call signal with the destination floor between the two adjacent accumulated floors in the same direction as the selected elevator call signal and assigns it to the elevator to be arrived.

12. The elevator group management method according to claim 10, characterized by When there are multiple accumulated floors with the opposite expected directions of the elevator call signals and the destination floor of the elevator call signal with the first accumulated floor as the departure floor is the second accumulated floor with the opposite expected direction of the elevator call signal, the method for managing the group of the accumulated floors selects the elevator call signal with the first accumulated floor as the departure floor and the second accumulated floor as the destination floor as the selected elevator call signal and assigns the selected elevator call signal to the elevator to be arrived at the first accumulated floor, so that the elevator to be arrived becomes the responding elevator of the selected elevator call signal.

13. The group management method of elevators according to claim 1, characterized by, The method for managing the group of the accumulated floors determines the selected elevator call signal with the elevator to be arrived as the responding elevator from the unresponded elevator call signals with the accumulated floors as the departure floors according to the available resources of the elevator to be arrived and the required resources of the elevator users with the accumulated floors as the departure floors, so that the total required resources of the elevator users corresponding to the selected elevator call signal is not more than the available resources of the elevator to be arrived.

14. The elevator group management method according to claim 13, characterized by The method for managing the group of the accumulated floors sorts the corresponding elevator call signals according to the waiting time of the elevator users with the accumulated floors as the departure floors from long to short, selects the selected elevator call signal from the sorted elevator call signals from front to back, and the total required resources of the elevator users corresponding to the selected elevator call signal is not more than the available resources of the elevator to be arrived.

15. The elevator group management method according to claim 13, characterized by The backlog floor group management method first sorts the corresponding boarding request signals in order of the waiting time of the elevator users with the backlog floor as the departure floor from long to short, then selects optional boarding request signals from the sorted boarding request signals from front to back, the total required resources of the elevator users corresponding to the optional boarding request signals are greater than the available resources of the elevator to be arrived but not greater than the available resources of the elevator to be arrived multiplied by α, where α>1, then enumerates all possible boarding request signal combinations composed of the optional boarding request signals, and finally selects a selected boarding request signal combination from all the boarding request combinations and takes the boarding request signals contained in the selected boarding request signal combination as the selected boarding request signals, the total required resources of the elevator users corresponding to the boarding request signals in the selected boarding request signal combination are not greater than and closest to the available resources of the elevator to be arrived, or the number of destination floors corresponding to the boarding request signals in the selected boarding request signal combination is the smallest.

16. The elevator group management method according to claim 15, characterized by When there is a boarding request signal of an elevator user whose waiting time exceeds a time threshold among the boarding request signals that have the backlog floor as the departure floor and have not been responded, the backlog floor group management method directly includes the boarding request signal whose waiting time exceeds the time threshold in the selected boarding request signals, and then selects the selected boarding request signals from the remaining boarding request signals according to the method of claim 14 or 15.

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