Elevator control method

Abstract

The present invention discloses an elevator control method, comprising: step S1, determining a time window of length T and its starting time; step S2, taking an elevator request signal whose boarding time is within the time window as a selected elevator request signal; step S3, judging whether the selected elevator request signal meets a special condition based on the elevator boarding time; when the judgment result is yes, proceeding to step S4, otherwise ending; step S4, adjusting the boarding time of the selected elevator request signal based on the departure floor and the destination floor of the boarding direction of the selected elevator request signal, so that the elevator completes the passenger transportation of the selected elevator request signal and achieves a predetermined optimization goal; step S5, controlling the elevator to provide transportation services for passengers according to the adjusted elevator boarding time. The elevator control method of the present invention minimizes the elevator moving distance by adjusting the elevator boarding time of the elevator request signal, thereby achieving elevator energy saving.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular to an elevator control method for achieving elevator energy saving by properly adjusting the boarding time of an elevator request signal. Background Art

[0002] Current elevators typically provide service by reaching the passenger's departure floor as quickly as possible after receiving an immediate boarding request signal, or by waiting at the passenger's departure floor before the scheduled boarding time after receiving a scheduled boarding request. In fact, in most cases, a passenger's boarding time can be slightly adjusted within a certain range. For example, if a passenger takes the elevator downstairs from home to go to work in the morning, the original departure time can be slightly advanced (e.g., 2 minutes earlier). If a passenger goes downstairs after dinner to go for a walk, the original departure time can also be slightly adjusted (e.g., 10 minutes earlier or later). In other words, an elevator does not need to strictly and precisely adhere to the passenger's designated boarding time when providing service; instead, it can make slight adjustments within a certain range. On the other hand, for two sets of identical boarding request signals except for the boarding time, the elevator's operating efficiency, operating time, number of stops, travel distance, and energy consumption required to respond to the two sets of boarding request signals and complete the passenger transport may vary significantly. In this way, for a given set of elevator request signals, if the elevator boarding time of the elevator request signal is allowed to be adjusted within a certain range, then the elevator's moving distance can be shortened and the elevator's energy consumption can be reduced by appropriately adjusting the elevator boarding time of the elevator request signal.

[0003] Thus, how to shorten the moving distance of the elevator and reduce the power consumption of the elevator by properly adjusting the boarding time of the elevator request signal becomes a technical problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an elevator control method which can shorten the moving distance of the elevator and reduce the power consumption of the elevator by properly adjusting the elevator boarding time of the elevator request signal.

[0005] In order to solve the above technical problems, the present invention provides an elevator control method, which includes the following steps:

[0006] Step S1, determining a time window of length T and the starting time of the time window;

[0007] Step S2: taking the elevator request signal whose boarding time is within the time window as the selected elevator request signal;

[0008] Step S3: judging whether the selected elevator boarding request signal satisfies a special condition according to the elevator boarding time, wherein the special condition includes:

[0009] Condition A: The number of selected elevator request signals is ≥ 2;

[0010] Condition B: the time interval τ between the earliest boarding time and the latest boarding time of the elevator request signal does not exceed the time threshold Γ (Γ≤T);

[0011] Condition C: The boarding time of each boarding request signal is adjustable within a given range of ±β (β>0);

[0012] If the judgment result is yes, go to step S4, otherwise end;

[0013] Step S4: adjusting the boarding time of the selected boarding request signal according to the departure floor and boarding direction of the selected boarding request signal, or according to the departure floor and destination floor, so that the elevator completes the passenger transportation of the selected boarding request signal and achieves a predetermined optimization goal;

[0014] Step S5: Control the elevator according to the adjusted boarding time to provide transportation service for passengers.

[0015] Preferably, the elevator request signal is a reserved elevator request signal or an elevator request signal corresponding to a passenger's regular elevator travel in an elevator riding pattern obtained by analyzing historical elevator riding data in an embodiment.

[0016] Preferably, the special conditions also include:

[0017] Condition D: The time window corresponds to a non-peak passenger flow period.

[0018] Preferably, the parameter β satisfies 0≤β≤Γ, or preferably satisfies 0≤β≤Γ / 2.

[0019] Preferably, the special conditions also include:

[0020] Condition D: The maximum number of passengers obtained by combining the passengers with the same elevator direction according to their elevator journey (i.e. the journey between the departure floor and the destination floor) shall not exceed the rated passenger capacity of the elevator.

[0021] Preferably, when the condition D does not hold, any of the following coping methods is adopted:

[0022] Method 1: by reducing the length T of the time window, so that the condition D is satisfied;

[0023] Method 2: Group passengers with the same elevator direction so that the elevator request signal in each group meets condition D, and then process each group separately.

[0024] Preferably, in the second mode, the grouping process follows at least one of the following grouping principles:

[0025] Grouping principles 1. Minimum number of groups;

[0026] Grouping principle 2: The span of the elevator boarding time of the elevator request signal within the group is the smallest.

[0027] Preferably, the grouping operation is performed according to the following steps:

[0028] Step A1, sorting the selected elevator request signals according to the time sequence of their elevator boarding times;

[0029] Step A2: Select from the sorting results in order of position after sorting, so that the selected elevator request signal meets condition D, until the selected elevator request signal meets condition D and no longer meets condition D, retain the last selection result that meets condition D and output it.

[0030] Preferably, when only grouping principle 1 is adopted, the grouping operation is performed according to the following steps:

[0031] Step B1: Passengers traveling in the same direction are combined according to their travel distances, and the travel distances where the number of passengers exceeds the rated passenger capacity of the elevator are treated as special travel distances;

[0032] Step B2: For each special elevator journey, list the selected elevator request signals whose elevator journeys include the special elevator journey;

[0033] Step B3: Group the selected elevator request signals in B2 until the number of passengers in the group obtained after grouping does not exceed the rated passenger capacity of the elevator (the grouping result may not be unique);

[0034] Step B4: Select the grouping result that is suitable for each special elevator journey from all the grouping results, and output the grouping result with the smallest number of groups as the final grouping result.

[0035] Preferably, step S4 adjusts the order in which the elevators respond to the selected elevator request signals by adjusting the boarding moments of the selected elevator request signals, thereby minimizing the moving distance required for the elevators to transport the passengers of the selected elevator request signals.

[0036] Preferably, step S4 adjusts the order in which the elevator responds to the selected elevator request signals so that the elevator completes as many of the selected elevator request signals as possible in one up or / and down trip, thereby minimizing the moving distance required for the elevator to transport the passengers responding to the selected elevator request signals.

[0037] Preferably, the step S4 further includes the following sub-steps:

[0038] Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction;

[0039] Sub-step S4-2, sorting the elevator request signals in the upward selected elevator request signal group according to the corresponding elevator departure floors from bottom to top, and sorting the elevator request signals in the downward selected elevator request signal group according to the corresponding elevator departure floors from top to bottom;

[0040] Sub-step S4-3, adjust the boarding times of the elevator request signals in the upward selected elevator request signal group and the downward selected elevator request signal group respectively, so that the order of the departure floors of the selected elevator request signals after the adjusted boarding times are sorted in chronological order is consistent with the sorting results of sub-step S4-2.

[0041] Preferably, the sub-step S4-3 adjusts the boarding time by adding a time adjustment amount to the original boarding time.

[0042] Preferably, the sub-step S4-3 selects the time adjustment amount according to the following principles:

[0043] The time difference α between the adjusted interval between two adjacent elevator boarding times and the time required for the elevator to move between the two departure floors of the corresponding elevator boarding request signals satisfies: 0<α1≤α≤α2, where parameters α1 and α2 are both positive real numbers.

[0044] Preferably, step S4 adjusts the order in which the elevator responds to the selected elevator request signals so that the elevator preferentially responds to the one with the smallest floor distance from the first departure floor to the farthest destination floor in the upward selected elevator request signal group and the downward selected elevator request signal group.

[0045] Preferably, the step S4 further includes the following sub-steps:

[0046] Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction;

[0047] Sub-step S4-2, selecting the first departure floor and the farthest destination floor from the up selected elevator request signal group and the down selected elevator request signal group respectively;

[0048] Sub-step S4-3, calculating the respective distances for the upward selected elevator request signal group and the downward selected elevator request signal group;

[0049] Sub-step S4-4, determining a signal group corresponding to a minimum distance according to the distance and using it as a priority response signal group requiring a priority response;

[0050] Sub-step S4-5, adjusting the boarding time of the selected elevator request signal in the priority response signal group and / or the non-priority response signal group, so that the elevator will give priority to responding to the selected elevator request signal in the priority response signal group.

[0051] Preferably, the sub-step S4-5 estimates the transportation time required for the elevator to complete the transportation of passengers of the elevator request signal in the priority response signal group, and then adjusts the time when the earliest responded elevator request signal in the non-priority response signal group takes place later than the time when the elevator completes the transportation of passengers of the elevator request signal in the priority response signal group.

[0052] Preferably, the adjustment is to set the adjustment amount of the boarding time corresponding to one of the selected boarding request signals in the signal group to 0.

[0053] Preferably, the adjustment is performed by setting the adjustment amount so that the sum of the absolute values ​​of the adjustment amounts at all moments is minimized.

[0054] Preferably, the optimization objectives include at least one of the shortest moving distance, the smallest power consumption, the smallest number of stops, the shortest running time, and the highest transportation efficiency.

[0055] Beneficial technical effects

[0056] The elevator control method of the present invention changes the order in which elevators respond to elevator request signals by appropriately adjusting the boarding time of the elevator request signals, thereby shortening the moving distance required for the elevator to complete the transportation of passengers generating the elevator request signals and reducing the elevator's power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 Flowchart of the elevator control method of the present invention. DETAILED DESCRIPTION

[0058] The following describes the embodiments of the present invention through specific embodiments in conjunction with the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. In the following description, specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be based on different viewpoints and applications. Those skilled in the art can make various similar generalizations and substitutions without departing from the spirit of the present invention.

[0059] Example 1

[0060] like Figure 1As shown, the elevator control method of this embodiment includes the following steps:

[0061] Step S1, determining a time window of length T and the starting time of the time window;

[0062] Step S2: taking the elevator request signal whose boarding time is within the time window as the selected elevator request signal;

[0063] Step S3, judging whether the selected elevator request signal meets the special conditions according to the elevator boarding time, if the judgment result is yes, proceeding to step S4, otherwise ending;

[0064] Step S4: adjusting the boarding time of the selected boarding request signal according to the departure floor and boarding direction of the selected boarding request signal, or according to the departure floor and destination floor, so that the elevator completes the passenger transportation of the selected boarding request signal and achieves a predetermined optimization goal;

[0065] Step S5: Control the elevator according to the adjusted boarding time to provide transportation service for passengers;

[0066] Here, the elevator request signals are all known in advance, and their sources are two: one is the reservation request signal for taking the elevator from a certain departure floor (or also going to a certain destination floor) at a certain time in the future, which is established in advance by the passenger using a mobile phone or special equipment and notified to the elevator control system; the other is the elevator riding pattern of passengers when taking the elevator obtained by analyzing the historical elevator riding data of passengers or elevators (it can be the regular travel of a specific passenger taking the elevator from a certain departure floor (or also going to a certain destination floor) at a certain time, or it can be the elevator request signal regularly registered at a certain time on a certain floor of the building where the elevator is located).

[0067] The aforementioned specific conditions include:

[0068] Condition A: The number of selected elevator request signals is ≥ 2;

[0069] Condition B: the time interval τ between the earliest boarding time and the latest boarding time of the elevator request signal does not exceed the time threshold Γ (Γ≤T);

[0070] Condition C: The boarding time of each elevator request signal can be adjusted within a given range of ±β (β>0).

[0071] Here, the parameter β satisfies: 0≤β≤Γ / 2, or better, satisfies: 0≤β≤Γ / 2.

[0072] Step S4 adjusts the boarding time of the selected elevator request signal according to the departure floor and the direction of the elevator, or according to the departure floor and the destination floor, and adjusts the order in which the elevators respond to the selected elevator request signal by adjusting the boarding time of the selected elevator request signal, so that the elevator completes the passenger transportation of the selected elevator request signal and achieves the predetermined optimization goal.

[0073] The optimization objectives include at least one of the shortest moving distance, the smallest power consumption, the smallest number of stops, the shortest running time, and the highest transportation efficiency.

[0074] Example 2

[0075] This embodiment further explains step S4 in detail based on the first embodiment.

[0076] Special conditions also include:

[0077] Condition D: The maximum number of passengers obtained by combining the passengers with the same elevator direction according to their elevator journey (i.e. the journey between the departure floor and the destination floor) shall not exceed the rated passenger capacity of the elevator.

[0078] The step S4 adjusts the order in which the elevator responds to the selected elevator request signals so that the elevator completes as many of the selected elevator request signals as possible in one up or / and down trip, thereby achieving the predetermined optimization goal of enabling the elevator to complete the passenger transportation of the selected elevator request signals.

[0079] The step S4 further includes the following sub-steps:

[0080] Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction;

[0081] Sub-step S4-2, sorting the elevator request signals in the upward selected elevator request signal group according to the corresponding elevator departure floors from bottom to top, and sorting the elevator request signals in the downward selected elevator request signal group according to the corresponding elevator departure floors from top to bottom;

[0082] Sub-step S4-3, adjust the boarding times of the elevator request signals in the upward selected elevator request signal group and the downward selected elevator request signal group respectively, so that the order of the departure floors of the selected elevator request signals after the adjusted boarding times are sorted in chronological order is consistent with the sorting results of sub-step S4-2.

[0083] The sub-step S4-3 adjusts the boarding time by adding a time adjustment amount to the original boarding time.

[0084] The sub-step S4-3 selects the time adjustment amount according to the following adjustment principle:

[0085] The time difference α between the adjusted interval between two adjacent elevator boarding times and the time required for the elevator to move between the two departure floors of the corresponding elevator boarding request signals satisfies: 0<α1≤α≤α2, where parameters α1 and α2 are both positive real numbers.

[0086] The adjustment corresponds to the adjustment amount of the elevator ride time of one of the selected elevator ride request signals in the signal group and is set to 0.

[0087] The adjustment is performed by setting the adjustment amount so that the sum of the absolute values ​​of the adjustment amounts at all times is minimized.

[0088] For the sake of illustration, consider the following simple application scenario:

[0089] There is only one elevator in the building with a rated passenger capacity of 10 and a total of 10 stops from 1st floor to 10th floor. The selected elevator request signal includes:

[0090] 1) 7:10, 1 person went down from the 8th floor to the 1st floor;

[0091] 2) 7:12, 3 people went down from the 9th floor to the 1st floor;

[0092] 3) 7:09, 2 people went down from the 5th floor to the 1st floor;

[0093] 4) 7:11, 2 people went down from the 10th floor to the 1st floor.

[0094] If conventional elevator control methods are used, the elevator would first respond to 3) and transport two passengers from the 5th floor to the 1st floor. It would then respond to 1) and return to the 8th floor, transporting one passenger from the 8th floor to the 1st floor. It would then respond to 4) and return to the 10th floor, transporting two passengers from the 10th floor to the 1st floor. Finally, it would respond to 2) and return to the 9th floor, transporting three passengers from the 9th floor to the 1st floor. Clearly, to return to the passengers' scheduled boarding times, the elevator would have to make multiple round trips and multiple stops, requiring significant travel distance and time, leading to significantly low efficiency.

[0095] The elevator control method of this embodiment can perform appropriate control for this situation, significantly improving transportation efficiency.

[0096] For the four selected elevator request signals mentioned above, all are downward. The maximum number of passengers obtained after merging the corresponding elevator routes occurs in the section from the 5th floor to the 1st floor, and the number is 9, which clearly meets the above condition D.

[0097] Considering that the building has a total of 10 floors, the time required for the elevator to move from the 10th floor to the 9th floor, from the 9th floor to the 8th floor, and from the 8th floor to the 5th floor is very short, so this movement time is ignored when adjusting the elevator boarding time.

[0098] To achieve the optimization goal, the elevator can transport all passengers from the upper floor to the lower floor in one trip. All boarding times are adjusted to the same time, such as 7:10. All passengers are instructed to arrive at the elevator lobby before this time. The elevator will be waiting on the 10th floor and ready to descend no later than 7:10. (Of course, even if both the elevator and the passengers on the 10th floor arrive at the lobby beforehand, the elevator will still not depart before 7:10.)

[0099] Note: Due to the simplicity of the application scenario, the elevator boarding time adjustment process in the example is not explained in detail. It will be supplemented if necessary.

[0100] Example 3

[0101] The second embodiment only considers the processing when the condition D is met. This embodiment considers the processing when the elevator request signal does not meet the condition D.

[0102] When the condition D does not hold, take any of the following actions:

[0103] Method 1: by reducing the length T of the time window, so that the condition D is satisfied;

[0104] Method 2: Group passengers with the same elevator direction so that the elevator request signal in each group meets condition D, and then process each group separately.

[0105] In the second approach, the grouping process follows at least one of the following grouping principles:

[0106] Grouping principles 1. Minimum number of groups;

[0107] Grouping principle 2: The span of the elevator boarding time of the elevator request signal within the group is the smallest.

[0108] Follow the steps below to perform grouping:

[0109] Step A1, sorting the selected elevator request signals according to the time sequence of their elevator boarding times;

[0110] Step A2: Select from the sorting results in order of position after sorting, so that the selected elevator request signal meets condition D, until the selected elevator request signal meets condition D and no longer meets condition D, retain the last selection result that meets condition D and output it.

[0111] When only grouping principle 1 is used, grouping is performed as follows:

[0112] Step B1: Passengers traveling in the same direction are combined according to their travel distances, and the travel distances where the number of passengers exceeds the rated passenger capacity of the elevator are treated as special travel distances;

[0113] Step B2: For each special elevator journey, list the selected elevator request signals whose elevator journeys include the special elevator journey;

[0114] Step B3: Group the selected elevator request signals in B2 until the number of passengers in the group obtained after grouping does not exceed the rated passenger capacity of the elevator (the grouping result may not be unique);

[0115] Step B4: Select the grouping result that is suitable for each special elevator journey from all the grouping results, and output the grouping result with the smallest number of groups as the final grouping result.

[0116] Example 4

[0117] This embodiment further explains step S4 in detail based on the first embodiment.

[0118] The step S4 adjusts the order in which the elevator responds to the selected elevator request signal so that the elevator preferentially responds to the one with the smallest floor distance from the first departure floor to the farthest destination floor in the upward selected elevator request signal group and the downward selected elevator request signal group.

[0119] The step S4 further includes the following sub-steps:

[0120] Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction;

[0121] Sub-step S4-2, selecting the first departure floor and the farthest destination floor from the up selected elevator request signal group and the down selected elevator request signal group respectively;

[0122] Sub-step S4-3, calculating the respective distances for the upward selected elevator request signal group and the downward selected elevator request signal group;

[0123] Sub-step S4-4, determining a signal group corresponding to a minimum distance according to the distance and using it as a priority response signal group requiring a priority response;

[0124] Sub-step S4-5, adjusting the boarding time of the selected elevator request signal in the priority response signal group and / or the non-priority response signal group, so that the elevator will give priority to responding to the selected elevator request signal in the priority response signal group.

[0125] The sub-step S4-5 estimates the transportation time required for the elevator to complete the transportation of passengers of the elevator request signal in the priority response signal group, and then adjusts the time so that the earliest responded elevator request signal in the non-priority response signal group takes place later than the time when the elevator completes the transportation of passengers of the elevator request signal in the priority response signal group.

[0126] This embodiment is mainly aimed at dealing with the situation where the selected elevator request signal includes both an up elevator request signal and a down elevator request signal. The core idea is to decouple the up and down elevator request signals by adjusting the elevator timing, and then the method in the above embodiment can be used to process the up elevator request signal and the down elevator request signal separately.

[0127] The adjustment corresponds to the adjustment amount of the elevator ride time of one of the selected elevator ride request signals in the signal group and is set to 0.

[0128] The adjustment is performed by setting the adjustment amount so that the sum of the absolute values ​​of the adjustment amounts at all times is minimized.

[0129] The present invention has been described in detail above through specific embodiments. The above embodiments are merely preferred embodiments of the present invention and the present invention is not limited to the above embodiments. Without departing from the principles of the present invention, equivalent substitutions and improvements made by those skilled in the art should be considered within the technical scope protected by the present invention.

Claims

1. An elevator control method, characterized in that: The steps include: Step S1, determining a time window of length T and the starting time of the time window; Step S2: taking the elevator request signal whose boarding time is within the time window as the selected elevator request signal; Step S3, judging whether the selected elevator request signal meets the preset conditions according to the elevator boarding time, if the judgment result is yes, proceeding to step S4, otherwise ending; Step S4: adjusting the boarding time of the selected boarding request signal according to the departure floor and boarding direction of the selected boarding request signal, or according to the departure floor and destination floor, so that the elevator completes the passenger transportation of the selected boarding request signal and achieves a predetermined optimization goal; Step S5: Control the elevator according to the adjusted boarding time to provide transportation service for passengers; The preset conditions include: Condition A: The number of selected elevator request signals is ≥ 2; Condition B: the time interval τ between the earliest boarding time and the latest boarding time of the elevator request signal does not exceed the time threshold Γ, Γ≤T; Condition C: The boarding time of each elevator request signal can be adjusted within a given range of ±β, β>0.

2. The elevator control method according to claim 1, characterized in that: The elevator request signal is a reserved elevator request signal or an elevator request signal corresponding to a passenger's regular elevator travel in an elevator riding pattern obtained by analyzing historical elevator riding data.

3. The elevator control method according to claim 1, characterized in that: The parameter β satisfies: 0≤β≤Γ / 2, or satisfies, 0≤β≤Γ / 2.

4. The elevator control method according to claim 1, wherein: The step S4 adjusts the order in which the elevators respond to the selected elevator request signals by adjusting the boarding times of the selected elevator request signals, thereby enabling the elevators to complete the passenger transportation of the selected elevator request signals and achieve a predetermined optimization goal.

5. The elevator control method according to claim 4, characterized in that: The preset conditions also include: Condition D: The maximum number of passengers obtained by combining the passengers traveling in the same direction according to their travel distance shall not exceed the rated passenger capacity of the elevator.

6. The elevator control method according to claim 5, characterized in that: When the condition D is not met, any of the following methods is adopted to make the condition D meet: Method 1: by reducing the length T of the time window, so that the condition D is satisfied; Method 2: Group passengers with the same elevator direction so that the elevator request signal in each group meets condition D, and then process each group separately.

7. The elevator control method according to claim 6, characterized in that: In the second mode, the grouping of passengers with the same elevator direction follows at least one of the following grouping principles: Grouping principles 1. Minimum number of groups; Grouping principle 2: The span of the elevator boarding time of the elevator request signal within the group is the smallest.

8. The elevator control method according to claim 7, characterized in that: Follow the steps below to perform grouping: Step A1, sorting the selected elevator request signals according to the time sequence of their elevator boarding times; Step A2: Select from the sorting results in order of position after sorting, so that the selected elevator request signal meets condition D, until the selected elevator request signal no longer meets condition D, retain the last selection result that meets condition D and output it.

9. The elevator control method according to claim 7, characterized in that: When only grouping principle 1 is used, grouping is performed as follows: Step B1: Passengers traveling in the same direction are combined according to their travel distances and each travel distance where the number of passengers exceeds the rated passenger capacity of the elevator is considered a special travel distance; Step B2: For each special elevator journey, list the selected elevator request signals whose elevator journeys include the special elevator journey; Step B3: Grouping the selected elevator request signals in step B2 until the number of passengers in the group obtained after grouping does not exceed the rated passenger capacity of the elevator. The grouping result may not be unique. Step B4: Select the grouping result that is suitable for each special elevator journey from all the grouping results, and output the grouping result with the smallest number of groups as the final grouping result.

10. The elevator control method according to claim 5, characterized in that: The step S4 adjusts the order in which the elevator responds to the selected elevator request signals so that the elevator completes as many of the selected elevator request signals as possible in one up or / and down trip, thereby achieving the predetermined optimization goal of enabling the elevator to complete the passenger transportation of the selected elevator request signals.

11. The elevator control method according to claim 10, characterized in that: The step S4 further includes the following sub-steps: Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction; Sub-step S4-2, sorting the elevator request signals in the upward selected elevator request signal group according to the corresponding elevator departure floors from bottom to top, and sorting the elevator request signals in the downward selected elevator request signal group according to the corresponding elevator departure floors from top to bottom; Sub-step S4-3, adjust the boarding times of the elevator request signals in the upward selected elevator request signal group and the downward selected elevator request signal group respectively, so that the order of the departure floors of the selected elevator request signals after the adjusted boarding times are sorted in chronological order is consistent with the sorting results of sub-step S4-2.

12. The elevator control method according to claim 11, characterized in that: The sub-step S4-3 adjusts the boarding time by adding a time adjustment amount to the original boarding time.

13. The elevator control method according to claim 12, characterized in that: The sub-step S4-3 selects the time adjustment amount according to the following adjustment principle: The time difference α between the adjusted interval between two adjacent elevator boarding times and the time required for the elevator to move between the two departure floors of the corresponding elevator boarding request signals satisfies: 0<α1≤α≤α2, where parameters α1 and α2 are both positive real numbers.

14. The elevator control method according to claim 4, characterized in that: The step S4 adjusts the order in which the elevators respond to the selected elevator request signals so that the elevator preferentially responds to the one with the smallest floor distance from the first departure floor to the farthest destination floor among the selected elevator request signals.

15. The elevator control method according to claim 14, characterized in that: The step S4 further includes the following sub-steps: Sub-step S4-1, dividing the selected elevator request signals into an upward selected elevator request signal group and a downward selected elevator request signal group according to the time expected elevator direction; Sub-step S4-2, selecting the first departure floor and the farthest destination floor from the up selected elevator request signal group and the down selected elevator request signal group respectively; Sub-step S4-3, calculating the respective distances for the upward selected elevator request signal group and the downward selected elevator request signal group; Sub-step S4-4, determining a signal group corresponding to a minimum distance according to the distance and using it as a priority response signal group requiring a priority response; Sub-step S4-5, adjusting the boarding time of the selected elevator request signal in the priority response signal group and / or the non-priority response signal group, so that the elevator will give priority to responding to the selected elevator request signal in the priority response signal group.

16. The elevator control method according to claim 15, characterized in that: The sub-step S4-5 estimates the transportation time required for the elevator to complete the transportation of passengers of the elevator request signal in the priority response signal group, and then adjusts the time so that the earliest responded elevator request signal in the non-priority response signal group takes place later than the time when the elevator completes the transportation of passengers of the elevator request signal in the priority response signal group.

17. The elevator control method according to claim 13 or 16, characterized in that: The adjustment sets the adjustment amount of the boarding time corresponding to one of the selected boarding request signals in the signal group to zero.

18. The elevator control method according to claim 13 or 16, characterized in that: The adjustment is performed by setting the adjustment amount so that the sum of the absolute values ​​of the adjustment amounts at all times is minimized.

19. The elevator control method according to claim 1, characterized in that: The optimization objectives include at least one of the shortest moving distance, the smallest power consumption, the smallest number of stops, the shortest running time, and the highest transportation efficiency.

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