Elevator allocation method

Abstract

The invention discloses an elevator allocation method which comprises the steps that 1, it is recognized that a first passenger enters a first elevator taking mode, and the first elevator taking mode indicates that the first passenger temporarily leaves a lift car or an elevator waiting hall of a first elevator stopping on a first floor where the first passenger is located and then returns and takes the elevator immediately; 2, the first elevator is controlled to stop on a first floor where the first passenger is located; 3, whether the first passenger returns or not is judged, if yes, the first elevator is controlled to provide conveying service for the first passenger, and the process is finished, and if not, the step 4 is executed; 4, judging whether a new elevator calling signal from the second passenger appears or not, if so, entering the next step, and otherwise, returning to the step 3; and 5, the first strategy is adopted to control the elevator, and according to the first strategy, the first elevator is controlled to continue to stop on the first floor to provide the conveying service for the first passenger, and meanwhile, a second elevator different from the first elevator is controlled to provide the conveying service for the second passenger. The starting frequency of the elevator can be reduced, the running distance of the elevator is shortened, and the energy consumption of the elevator is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator dispatching method. Background Art

[0002] In daily life, we often encounter such scenarios: passengers leave the elevator after arriving at their destination floor, go home for a short stay, then return and need to take the elevator again, or leave for a short time after calling the elevator at the floor station for some reason (such as forgetting to bring something and going home to get it), then return immediately and need to take the elevator again. During the short period from the elevator car arriving at the passenger's floor to the passenger returning and needing to take the elevator again, if other elevator call signals appear (especially when the new elevator call signal is opposite to the passenger's elevator direction or the new elevator call signal is the same as the passenger's elevator direction and is located in front of the passenger's elevator direction), the elevator originally parked at the passenger's floor may be assigned to the newly appeared elevator call signal. At this time, the passenger can only re-register the elevator call signal and wait for the new response elevator assigned by the elevator group management system. In this case, not only will the passenger's waiting time be extended, but it may also lead to a decrease in the overall operating efficiency of the elevator and an increase in energy consumption (such as a longer moving distance of the elevator). Summary of the invention

[0003] The technical problem to be solved by the present invention is how to provide a technical solution that can improve the overall operating efficiency of the elevator system and reduce energy consumption in the scenario where passengers leave the elevator car after arriving at their destination floor and immediately return to take the elevator again.

[0004] In order to solve the above technical problems, the present invention provides an elevator dispatching method, comprising:

[0005] Step 1: Identify that a first passenger enters a first elevator riding mode, wherein the first elevator riding mode indicates that the first passenger will return and take the elevator immediately after temporarily leaving the car or elevator lobby of the first elevator parked at the first floor where the first passenger is located;

[0006] Step 2: Control the first elevator to stop at the first floor where the first passenger is located, so that the first passenger can take the first elevator after returning;

[0007] Step 3, determine whether the first passenger has returned, if so, control the first elevator to provide transportation service for the first passenger, end, otherwise, go to step 4;

[0008] Step 4: Determine whether a new elevator call signal from the second passenger appears. If yes, proceed to the next step; otherwise, return to step 3.

[0009] Step 5: Use a first strategy to control the elevator, wherein the first strategy is: control the first elevator to continue to stop at the first floor to provide transportation service for the first passenger, and at the same time control a second elevator different from the first elevator to provide transportation service for the second passenger.

[0010] Preferably, step 1 determines whether the first passenger enters the first riding mode according to a first riding mode instruction input by the first passenger using an input device, or according to an image recognition result of the first passenger by an image recognition device.

[0011] Preferably, between step 4 and step 5, the following is further included:

[0012] Step A1: Determine whether to adopt the first strategy to control the elevator according to the positions of the first floor, the second floor and the third floor, and proceed to step 5 if it is determined to adopt the first strategy, otherwise proceed to step A2, the first floor is the floor where the first passenger is located, the second floor is the departure floor of the new elevator call signal, and the third floor is the current floor of the second elevator;

[0013] Step A2, adopting a second strategy to control the elevator and ending, wherein the second strategy is: taking all elevators including the first elevator as optional elevators, allocating a response elevator to the second passenger, and when the first elevator is allocated to the second passenger, after the first passenger returns, taking the remaining elevators except the first elevator as optional elevators, allocating a response elevator to the first passenger.

[0014] Preferably, when the second floor and the third floor are located on the same side of the first floor, the step A1 determines to adopt the first strategy, otherwise determines to adopt the second strategy.

[0015] Preferably, the step A1 further comprises the following sub-steps:

[0016] Sub-step A11, pre-establishing an evaluation function for evaluating the strategy;

[0017] Sub-step A12: determining each item included in the evaluation function;

[0018] Sub-step A13, calculating the project value of each item when the first strategy is adopted and the project value of each item when the second strategy is adopted according to the positions of the first floor, the second floor and the third floor;

[0019] Sub-step A14, calculating the first evaluation function value when the first strategy is adopted by using the project value of each project when the first strategy is adopted, and calculating the second evaluation function value when the second strategy is adopted by using the project value of each project when the second strategy is adopted;

[0020] Sub-step A15: subtract the second evaluation function value from the first evaluation function value, and use the obtained difference as the first difference;

[0021] Sub-step A16: determining whether to adopt the first strategy to control the elevator according to the magnitude relationship between the first difference and the first threshold.

[0022] Preferably, the items include at least one of the following:

[0023] 1) The total moving distance of the first passenger's responding elevator and the second passenger's responding elevator;

[0024] 2) The total number of starts of the first passenger's response elevator and the second passenger's response elevator;

[0025] 3) The waiting time of the first passenger and / or the second passenger.

[0026] Preferably, the evaluation function is: f = Σ(α i × i ), where α is the weight of the item, i is the item number, and x is the item.

[0027] Preferably, the formula for calculating the total moving distance S1 during the first strategy in sub-step A13 is: S1=|f1s-f1d|+|f13-f12|+|f12-f12d|, and the formula for calculating the total moving distance S2 during the second strategy in sub-step A13 is: S2=|f1s-f12|+|f12-f12d|+|f13-f1s|+|f1s-f1d|, wherein f1s is the first floor, f1d is the destination floor of the first passenger, f13 is the third floor, f12 is the second floor, and f12d is the destination floor of the second passenger.

[0028] Preferably, the total number of startups calculated in the sub-step A13 is: 3 for the first strategy and 4 for the second strategy.

[0029] Preferably, the sub-step A13 estimates the passenger's waiting time for the elevator according to the moving distance of the responding elevator when the passenger's current position moves to the passenger's current floor.

[0030] Preferably, the sub-step A13 estimates the waiting time T11 of the first passenger when the first strategy is adopted, and the formula is: T11=0; the formula for estimating the waiting time T12 of the second passenger when the first strategy is adopted is: T12=β|f13-f12|; the formula for estimating the waiting time T21 of the first passenger when the second strategy is adopted is: T21=β|f13-f1s|; the formula for estimating the waiting time T22 of the second passenger when the second strategy is adopted is: T22=β|f1s-f12|; wherein β is the conversion coefficient from moving distance to waiting time, f1s is the first floor, f13 is the third floor, and f12 is the second floor.

[0031] Preferably, when the waiting time in the evaluation function includes both the waiting time of the first passenger and the waiting time of the second passenger, the calculation formula for the waiting time T1 of the first passenger and the second passenger when the first strategy is adopted is T1=T12, and the calculation formula for the waiting time T2 of the first passenger and the second passenger when the second strategy is adopted is T2=γT21+(1-γ)T22, where γ is a coefficient reflecting the relative weight of the waiting time of the first passenger to the waiting time of the second passenger.

[0032] Compared with the prior art, the present invention can reduce the number of elevator starts, shorten the elevator running distance, reduce the elevator energy consumption, and shorten the passengers' waiting time for the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0034] Figure 1 This is a schematic diagram of the steps of the elevator allocation method of Example 1;

[0035] Figure 2 This is a schematic diagram of the steps of the elevator allocation method of Example 2;

[0036] Figures 3 to 6 This is a schematic diagram of the total number of starts and the total moving distance when the first strategy or the second strategy is adopted in different scenario examples in Example 1 and Example 2. DETAILED DESCRIPTION

[0037] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment provides an elevator dispatching method, including:

[0040] Step 1: Identify that a first passenger enters a first elevator riding mode, wherein the first elevator riding mode indicates that the first passenger will return and take the elevator immediately after temporarily leaving the car or elevator lobby of the first elevator parked at the first floor where the first passenger is located;

[0041] Step 2: Control the first elevator to stop at the first floor where the first passenger is located, so that the first passenger can take the first elevator after returning;

[0042] Step 3, determine whether the first passenger has returned, if so, control the first elevator to provide transportation service for the first passenger, end, otherwise, go to step 4;

[0043] Step 4: Determine whether a new elevator call signal from the second passenger appears. If yes, proceed to the next step; otherwise, return to step 3.

[0044] Step 5: Use a first strategy to control the elevator, wherein the first strategy is: control the first elevator to continue to stop at the first floor to provide transportation service for the first passenger, and at the same time control a second elevator different from the first elevator to provide transportation service for the second passenger.

[0045] Step 1 determines whether the first passenger enters the first riding mode according to a first riding mode instruction input by the first passenger using an input device, or according to an image recognition result of the first passenger by an image recognition device.

[0046] The input method using the input device includes but is not limited to any of the following:

[0047] Method 1: The first passenger uses a mobile phone or other smart terminal to inform the elevator system;

[0048] Method 2: The first passenger performs a specific operation on a button in the car or on a landing button at the landing before leaving the car;

[0049] Mode 3: The first passenger informs the elevator system using a voice input device in the car or a voice input device on a landing before leaving the car.

[0050] According to the image recognition result of the image recognition device for the first passenger, the judgment method adopted in Chinese patent document CN202310133124.6 can be adopted exemplarily.

[0051] The following is an example of a scenario in which the first passenger takes the elevator from the 1st floor to his destination floor (i.e. the 12th floor where the first passenger's home is located), leaves the elevator briefly to go home to get something, and then immediately returns and takes the elevator to the 1st floor.

[0052] Figures 3 to 6 Cases 2, 4, 6, 8, 10, 12, 14, and 16 show the total moving distance and total number of starts when the first strategy is used to control the elevator in 8 scenarios.

[0053] Figures 3 to 6 Cases 1, 3, 5, 7, 9, 11, 13, and 15 in FIG. 1 show the total moving distance and total number of starts when the second strategy is used to control the elevator in the same 8 scenarios.

[0054] exist Figures 3 to 6 In the table, ● represents the first floor, ▲ and ■ represent the second floor, and ★ represents the third floor.

[0055] from Figures 3 to 6 It can be seen that in all 8 scenarios, using the first strategy to control the elevator can reduce the total number of elevator starts.

[0056] Example 2

[0057] Depend on Figures 3 to 6 As shown in , it can be seen that in all scenarios, Example 1 can use the first strategy to control the elevator to achieve a reduction in the total number of elevator starts. Considering that the first strategy can only reduce the total number of starts by 1, but on the other hand, it may increase the waiting time for the second passenger (for example, the second floor where the new elevator call signal appears is very close to the first floor, and the second elevators other than the first elevator parked on the first floor are far away from the second floor. At this time, because the first strategy selects the second elevator as the response elevator to the new elevator call signal, it is obvious that the moving time required for the second elevator to move to the second floor is longer than the moving time required for the first elevator to move to the second floor), it is not necessarily reasonable to adopt all the first strategies without distinction.

[0058] To this end, this embodiment adopts the first strategy to control the elevator only when the total moving distance of the elevator system can be shortened.

[0059] Specific elevator deployment methods such as Figure 2 As shown, between step 4 and step 5, it also includes:

[0060] Step A1: Determine whether to adopt the first strategy to control the elevator according to the positions of the first floor, the second floor and the third floor, and proceed to step 5 if it is determined to adopt the first strategy, otherwise proceed to step A2, the first floor is the floor where the first passenger is located, the second floor is the departure floor of the new elevator call signal, and the third floor is the current floor of the second elevator;

[0061] Step A2, adopting a second strategy to control the elevator and ending, wherein the second strategy is: taking all elevators including the first elevator as optional elevators, allocating a response elevator to the second passenger, and when the first elevator is allocated to the second passenger, after the first passenger returns, taking the remaining elevators except the first elevator as optional elevators, allocating a response elevator to the first passenger.

[0062] Example 3

[0063] This embodiment further defines and explains step A1 based on embodiment 2.

[0064] When the second floor and the third floor are located on the same side of the first floor (at this time, the total moving distance of the first strategy is always less than the total moving distance of the second strategy), the step A1 determines to adopt the first strategy, otherwise it determines to adopt the second strategy. Figures 3 to 6 In cases 2, 6, 12 and 16, in these 4 scenarios, the second floor and the third floor are located on the same side of the first floor, and the first strategy can shorten the total moving distance of the elevator system compared to the second strategy.

[0065] This embodiment adopts the first strategy only when the second floor and the third floor are located on the same side of the first floor, ensuring that the total moving distance at this time is shorter than the total moving distance when the second strategy is adopted, thereby reducing the energy consumption of the elevator and the wear of related components.

[0066] Example 4

[0067] This embodiment further defines and explains step A1 based on embodiment 2.

[0068] In the technical solution of Example 3, the first strategy is adopted as long as the total moving distance can be shortened. However, in fact, in some cases, the total moving distance that can be shortened by the first strategy is very small, but the increase in the waiting time of the second passenger is large. Obviously, in this case, the first strategy should not be adopted, but the second strategy should be adopted. This embodiment describes the solution to this problem.

[0069] In this embodiment,

[0070] The step A1 further comprises the following sub-steps:

[0071] Sub-step A11, pre-establishing an evaluation function for evaluating the strategy;

[0072] Sub-step A12: determining each item included in the evaluation function;

[0073] Sub-step A13, calculating the project value of each item when the first strategy is adopted and the project value of each item when the second strategy is adopted according to the positions of the first floor, the second floor and the third floor;

[0074] Sub-step A14, calculating the first evaluation function value when the first strategy is adopted by using the project value of each project when the first strategy is adopted, and calculating the second evaluation function value when the second strategy is adopted by using the project value of each project when the second strategy is adopted;

[0075] Sub-step A15: subtract the second evaluation function value from the first evaluation function value, and use the obtained difference as the first difference;

[0076] Sub-step A16: determining whether to adopt the first strategy to control the elevator according to the magnitude relationship between the first difference and the first threshold.

[0077] The items in sub-step A12 include at least one of the following:

[0078] 1) The total moving distance of the first passenger's responding elevator and the second passenger's responding elevator;

[0079] 2) The total number of starts of the first passenger's response elevator and the second passenger's response elevator;

[0080] 3) The waiting time of the first passenger and / or the second passenger.

[0081] The total number of startups calculated in sub-step A13 is: 3 for the first strategy and 4 for the second strategy.

[0082] The evaluation function of sub-step A11 is: f = Σ(α i × i ), where α is the weight of the item, i is the item number, and x is the item.

[0083] The formula for calculating the total moving distance S1 in the first strategy in sub-step A13 is:

[0084] S1=|f1s-f1d|+|f13-f12|+|f12-f12d|, the formula for calculating the total moving distance S2 during the second strategy in sub-step A13 is: S2=|f1s-f12|+|f12-f12d|+|f13-f1s|+|f1s-f1d|, wherein f1s is the first floor, f1d is the destination floor of the first passenger, f13 is the third floor, f12 is the second floor, and f12d is the destination floor of the second passenger.

[0085] Sub-step A13 estimates the passenger's waiting time for the elevator based on the distance the elevator moves from its current location to the passenger's current floor.

[0086] In sub-step A13, the formula for estimating the waiting time T11 of the first passenger when the first strategy is adopted is: T11=0; the formula for estimating the waiting time T12 of the second passenger when the first strategy is adopted is: T12=β|f13-f12|; the formula for estimating the waiting time T21 of the first passenger when the second strategy is adopted is: T21=β|f13-f1s|; the formula for estimating the waiting time T22 of the second passenger when the second strategy is adopted is: T22=β|f1s-f12|; wherein β is the conversion coefficient from moving distance to waiting time, f1s is the first floor, f1d is the destination floor of the first passenger, f13 is the third floor, f12 is the second floor, and f12d is the destination floor of the second passenger.

[0087] The || in the above formula represents the absolute value operation.

[0088] When the waiting time in the evaluation function includes both the waiting time of the first passenger and the waiting time of the second passenger, the calculation formula for the waiting time T1 of the first passenger and the second passenger when the first strategy is adopted is T1=T12, and the calculation formula for the waiting time T2 of the first passenger and the second passenger when the second strategy is adopted is T2=γT21+(1-γ)T22, where γ is a coefficient reflecting the relative weight of the waiting time of the first passenger to the waiting time of the second passenger.

[0089] This embodiment pre-establishes an evaluation function that includes the total moving distance of the elevator, the waiting time of passengers, the number of elevator starts, etc., and according to the rating function values ​​of the evaluation functions corresponding to the first strategy and the second strategy, selects the strategy corresponding to the best evaluation function value from the first strategy and the second strategy to control the elevator, thereby obtaining the best control performance and control effect, such as low elevator energy consumption and short passenger waiting time.

[0090] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. An elevator dispatching method, characterized in that: include: Step 1: Identify that a first passenger enters a first elevator riding mode, wherein the first elevator riding mode indicates that the first passenger will return and take the elevator immediately after temporarily leaving the car or elevator lobby of the first elevator parked at the first floor where the first passenger is located; Step 2: Control the first elevator to stop at the first floor where the first passenger is located, so that the first passenger can take the first elevator after returning; Step 3, determine whether the first passenger has returned, if so, control the first elevator to provide transportation service for the first passenger, end, otherwise, go to step 4; Step 4: Determine whether a new elevator call signal from the second passenger appears. If yes, proceed to the next step; otherwise, return to step 3. Step 5: Use a first strategy to control the elevator, wherein the first strategy is: control the first elevator to continue to stop at the first floor to provide transportation service for the first passenger, and at the same time control a second elevator different from the first elevator to provide transportation service for the second passenger.

2. The elevator dispatching method according to claim 1, characterized in that: The step 1 determines whether the first passenger enters the first riding mode according to a first riding mode instruction input by the first passenger using an input device, or according to an image recognition result of the first passenger by an image recognition device.

3. The elevator dispatching method according to claim 1, characterized in that: Between step 4 and step 5, the following is also included: Step A1: Determine whether to adopt the first strategy to control the elevator according to the positions of the first floor, the second floor and the third floor, and proceed to step 5 if it is determined to adopt the first strategy, otherwise proceed to step A2, the first floor is the floor where the first passenger is located, the second floor is the departure floor of the new elevator call signal, and the third floor is the current floor of the second elevator; Step A2, adopting a second strategy to control the elevator and ending, wherein the second strategy is: taking all elevators including the first elevator as optional elevators, allocating a response elevator to the second passenger, and when the first elevator is allocated to the second passenger, after the first passenger returns, taking the remaining elevators except the first elevator as optional elevators, allocating a response elevator to the first passenger.

4. The elevator dispatching method according to claim 3, characterized in that: When the second floor and the third floor are located on the same side of the first floor, the step A1 determines to adopt the first strategy, otherwise determines to adopt the second strategy.

5. The elevator dispatching method according to claim 3, characterized in that: The step A1 further comprises the following sub-steps: Sub-step A11, pre-establishing an evaluation function for evaluating the strategy; Sub-step A12: determining each item included in the evaluation function; Sub-step A13, calculating the project value of each item when the first strategy is adopted and the project value of each item when the second strategy is adopted according to the positions of the first floor, the second floor and the third floor; Sub-step A14, calculating the first evaluation function value when the first strategy is adopted by using the project value of each project when the first strategy is adopted, and calculating the second evaluation function value when the second strategy is adopted by using the project value of each project when the second strategy is adopted; Sub-step A15: subtract the second evaluation function value from the first evaluation function value, and use the obtained difference as the first difference; Sub-step A16: determining whether to adopt the first strategy to control the elevator according to the magnitude relationship between the first difference and the first threshold.

6. The elevator dispatching method according to claim 5, characterized in that: The items include at least one of the following: 1) The total moving distance of the first passenger's responding elevator and the second passenger's responding elevator; 2) The total number of starts of the first passenger's response elevator and the second passenger's response elevator; 3) The waiting time of the first passenger and / or the second passenger.

7. The elevator dispatching method according to claim 6, characterized in that: The evaluation function is: f = Σ(α i × i ), where α is the weight of the item, i is the item number, and x is the item.

8. The elevator dispatching method according to claim 7, characterized in that: The formula for calculating the total moving distance S1 when the sub-step A13 uses the first strategy is: S1=|f1s-f1d|+|f13-f12|+|f12-f12d|, and the formula for calculating the total moving distance S2 when the sub-step A13 uses the second strategy is: S2=|f1s-f12|+|f12-f12d|+|f13-f1s|+|f1s-f1d|, wherein f1s is the first floor, f1d is the destination floor of the first passenger, f13 is the third floor, f12 is the second floor, and f12d is the destination floor of the second passenger.

9. The elevator dispatching method according to claim 6, characterized in that: The total number of startups calculated in the sub-step A13 is: 3 for the first strategy and 4 for the second strategy.

10. The elevator dispatching method according to claim 6, characterized in that: The sub-step A13 estimates the passenger's waiting time for the elevator according to the moving distance of the responding elevator when the passenger's current position moves to the passenger's current floor.

11. The elevator dispatching method according to claim 10, characterized in that: The formula for estimating the waiting time T11 of the first passenger when the first strategy is adopted in sub-step A13 is: T11=0; the formula for estimating the waiting time T12 of the second passenger when the first strategy is adopted is: T12=β|f13-f12|; the formula for estimating the waiting time T21 of the first passenger when the second strategy is adopted is: T21=β|f13-f1s|; the formula for estimating the waiting time T22 of the second passenger when the second strategy is adopted is: T22=β|f1s-f12|; wherein β is the conversion coefficient from moving distance to waiting time, f1s is the first floor, f13 is the third floor, and f12 is the second floor.

12. The elevator dispatching method according to claim 11, characterized in that: When the waiting time in the evaluation function includes both the waiting time of the first passenger and the waiting time of the second passenger, the calculation formula for the waiting time T1 of the first passenger and the second passenger when the first strategy is adopted is T1=T12, and the calculation formula for the waiting time T2 of the first passenger and the second passenger when the second strategy is adopted is T2=γT21+(1-γ)T22, where γ is a coefficient reflecting the relative weight of the waiting time of the first passenger to the waiting time of the second passenger.

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