Intelligent control system and method for elevator

Abstract

The invention provides an intelligent control system and method of an elevator, the intelligent control system of the elevator comprises a central server, a waiting monitoring unit and an elevator monitoring unit, the central server communicates with the waiting monitoring unit in a wired mode, and the central server communicates with the elevator monitoring unit in a wireless mode. The waiting monitoring unit is arranged in an elevator waiting room of each floor and comprises a mounting base, a millimeter wave radar and a first camera, the elevator monitoring unit is arranged in an elevator car and comprises a pressure sensing array and a second camera, the intelligent control system controls the elevator group, and the elevator group comprises more than two elevators. According to the method, the working mode of the elevator is flexibly adjusted according to the dynamic change of the number of waiting people on each floor, and the operation efficiency of the elevator is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator control, and in particular to an intelligent control system and method for an elevator. Background Art

[0002] With the increasing popularity of high-rise buildings in cities, elevators have become an indispensable facility in high-rise buildings. At present, the elevator transportation method is generally to obtain the user's elevator request signal, and then the elevator goes to the corresponding floor to perform the elevator transportation task. However, for residential communities, residents will go to work and go home after work at similar time periods. If the elevator is controlled in the conventional way, there will be residents who need to go out on multiple floors during rush hour. The elevator will open the door multiple times during the descent process, which greatly reduces the elevator transportation speed. During the rush hour after get off work, the elevator will be delayed and a large number of residents will be congested on the first floor, which greatly affects the operation efficiency of the elevator. Summary of the invention

[0003] In order to solve the technical problems of inflexible control mode and low operating efficiency of elevators in the prior art, the intelligent control system of the elevator proposed by the present invention includes a central server, a waiting monitoring unit and an elevator monitoring unit, wherein the central server communicates with the waiting monitoring unit in a wired manner, and the central server communicates with the elevator monitoring unit in a wireless manner;

[0004] The waiting monitoring unit is arranged in the waiting room of each floor, and includes a mounting base, a millimeter wave radar and a first camera;

[0005] The elevator monitoring unit is arranged in the elevator car and includes a pressure sensor array and a second camera;

[0006] The intelligent control system controls an elevator group, which includes more than two elevators.

[0007] Based on the above-mentioned intelligent control system of the elevator, the intelligent control method of the elevator includes the following steps:

[0008] S1, determine whether the current time belongs to the working period, if yes, enter S2, otherwise, enter S3;

[0009] S2, start the waiting monitoring unit, the central server sets the working mode of the ladder group according to the data of the waiting monitoring unit, starts timing from zero, and determines whether the timing time is equal to the detection cycle. If so, return to S1;

[0010] S3, wait for the monitoring unit to stop working, the central server sets the working mode of the ladder group to the simplified working mode, the central server calculates the time interval between the current time and the adjacent time endpoints of the working period, starts timing from zero, and determines whether the timing time is equal to the time interval. If so, return to S2.

[0011] Preferably, in S2, the working modes of the ladder group specifically include an up priority mode, a down priority mode and a normal mode. The specific process of the central server setting the working mode of the ladder group according to the data of the waiting monitoring unit is that the first camera of each waiting monitoring unit shoots the picture of the corresponding elevator waiting room, and the central server determines the number of waiting people on each floor through image recognition, and takes the number of waiting people on the first floor as the number of people going up, and adds up the number of waiting people on the remaining floors as the number of people going down. If the number of people going down is greater than the number threshold, and the number of people going down is greater than twice the number of people going up, the central server sets the working mode of the ladder group to the down priority mode. If the number of people going up is greater than the number threshold, and the number of people going up is greater than twice the number of people going down, the central server sets the working mode of the ladder group to the up priority mode. Except for the above two cases, the central server sets the working mode of the ladder group to the normal mode.

[0012] Preferably, in the upward priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room, and the central server determines the number of waiting people on each floor through image recognition, and puts the floor and the corresponding number of waiting people as a demand information into the demand queue. The central server controls the running path of the elevator according to the running direction of the elevator and the demand queue.

[0013] Preferably, the specific process of the central server controlling the running path of the elevator according to the running direction and demand queue of the elevator is as follows: if the elevator is currently going up, after transporting the residents to their respective target floors, the elevator will no longer go up, and will select a downward stop floor according to the current floor and the interval threshold, and will descend according to the selected stop floor; if the elevator is currently going down, will select a downward stop floor according to the current floor and the interval threshold.

[0014] Preferably, the specific process of selecting the downward stopping floor according to the current floor and the interval threshold is to determine the interval between the current floor and the first floor, determine the remaining space in the elevator car according to the second camera, and select the stopping floor based on the constraint conditions, wherein the constraint conditions include: (1) the floor interval between any two adjacent stopping floors in the running path is greater than the interval threshold; and (2) the space occupied by the sum of the number of waiting persons at the stopping floors in the running path is not greater than the remaining space.

[0015] Preferably, in the downlink priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room, and the central server determines the priority and number of waiting people on each floor through image recognition, and puts the floor, priority and corresponding number of waiting people as a piece of demand information into the demand queue. The central server controls the running path of the elevator according to the running direction of the elevator and the demand queue.

[0016] Preferably, the priority is calculated as adjustment coefficient × basic priority, and the basic priority is determined by judging whether there are students with backpacks or people of working age in the waiting crowd on the floor based on the picture taken by the first camera. If so, the basic priority is 2, otherwise, the basic priority is 1. The adjustment coefficient is determined by controlling the millimeter-wave radar to detect the breathing rate of each waiting resident, selecting the maximum value therein, and taking the ratio of the maximum value to the middle value of the normal breathing rate range as the first coefficient.

[0017] Preferably, the specific process of the central server controlling the running path of the elevator according to the running direction of the elevator and the demand queue is as follows: if the elevator is currently going up, after transporting the residents to their respective target floors, if the current floor is the top floor, a downward stop floor is selected according to the current floor and the priority, and the elevator descends according to the selected stop floor; if the current floor is not the top floor, a determination is made according to the demand queue whether there is a floor above the current floor whose priority is greater than the priority threshold; if so, the elevator ascends to the highest floor among the floors whose priority is greater than the priority threshold, the elevator no longer goes up, a downward stop floor is selected according to the current floor and the priority, and the elevator descends according to the selected stop floor; if the elevator is currently going down, a downward stop floor is selected according to the current floor and the priority.

[0018] Preferably, the specific process of selecting the downward stopping floor according to the current floor and priority is to determine the interval floor interval between the current floor and the first floor, determine the remaining space in the elevator car according to the second camera, determine the floors within the interval floor interval according to the demand queue, sort the demand information from high to low according to priority, and select the floors corresponding to the demand information as the stopping floors in the sorted order until the space occupied by the sum of the number of waiting people on all the stopping floors is closest to the remaining space, provided that it is not greater than the remaining space.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] According to the dynamic changes in the number of people waiting on each floor, the elevator's working mode is flexibly adjusted, greatly improving the elevator's operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the intelligent control system of the present invention;

[0022] Figure 2 It is a flow chart of the intelligent control method of the present invention. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 As shown, the intelligent control system of the elevator proposed by the present invention includes a central server, a waiting monitoring unit and an elevator monitoring unit, the central server and the waiting monitoring unit communicate via wired means, and the central server and the elevator monitoring unit communicate via wireless means. The intelligent control system controls the elevator group, which includes more than two elevators.

[0025] The waiting monitoring unit is set in the elevator lobby on each floor, including a mounting base, a millimeter-wave radar and a first camera. The millimeter-wave radar and the first camera are set on the mounting base through a rotating module, which can achieve horizontal 360° and vertical 0-90° rotation.

[0026] The elevator monitoring unit is arranged in the elevator car, and includes a pressure sensing array and a second camera. The pressure sensing array includes a plurality of pressure sensors evenly arranged at the bottom of the elevator car, and the second camera is arranged at the top inside the elevator car.

[0027] like Figure 2 As shown, based on the above intelligent control system, the intelligent control method of the elevator includes the following steps:

[0028] S1. Determine whether the current time is in the working period. If so, enter S2. Otherwise, enter S3. The working period is specifically 6:00-22:00.

[0029] S2, start the waiting monitoring unit, the central server sets the working mode of the ladder group according to the data of the waiting monitoring unit, starts timing from zero, and determines whether the timing time is equal to the detection period. If it is equal, return to S1. The detection period is specifically 30 minutes. The working mode of the ladder group specifically includes the up priority mode, the down priority mode and the normal mode. The specific process of the central server setting the working mode of the ladder group according to the data of the waiting monitoring unit is that the first camera of each waiting monitoring unit shoots the picture of the corresponding waiting room, and the central server determines the number of waiting people on each floor through image recognition, takes the number of waiting people on the first floor as the number of people going up, and adds the number of waiting people on the remaining floors as the number of people going down. If the number of people going down is greater than the number threshold, and the number of people going down is greater than twice the number of people going up, the central server sets the working mode of the ladder group to the down priority mode. If the number of people going up is greater than the number threshold, and the number of people going up is greater than twice the number of people going down, the central server sets the working mode of the ladder group to the up priority mode. In addition to the above two cases, the central server sets the working mode of the ladder group to the normal mode.

[0030] In the upward priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room. The central server determines the number of people waiting on each floor through image recognition, and puts the floor and the corresponding number of people waiting as a demand information into the demand queue. The central server controls the elevator's running path according to the elevator's running direction and the demand queue. The specific process of the central server controlling the elevator's running path according to the elevator's running direction and the demand queue is as follows: if the elevator is currently going up, after transporting residents to their respective target floors, the elevator will no longer go up, and select a descending stop floor according to the current floor and the interval threshold, and go down according to the selected stop floor. If the elevator is currently going down, select a descending stop floor according to the current floor and the interval threshold. The specific process of selecting a descending stop floor according to the current floor and the interval threshold is to determine the interval between the current floor and the first floor, determine the remaining space of the elevator car according to the second camera, and select the stop floor based on the constraint conditions. The constraint conditions include: (1) The floor interval between any two adjacent stop floors in the running path is greater than the interval threshold (for example, 5 floors); (2) The space occupied by the sum of the number of people waiting on the stop floors in the running path is not greater than the remaining space.

[0031] In the downlink priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room. The central server determines the priority and number of people waiting on each floor through image recognition, and puts the floor, priority and corresponding number of people waiting as a demand information into the demand queue. The central server controls the running path of the elevator according to the running direction of the elevator and the demand queue. The priority is calculated by adjustment coefficient × basic priority. The basic priority is determined by judging whether there are students with schoolbags or people of working age in the waiting crowd on the floor based on the image captured by the first camera. If so, the basic priority is 2, otherwise, the basic priority is 1. The adjustment coefficient is determined by controlling the millimeter wave radar to detect the breathing rate of each waiting resident, selecting the maximum value, and taking the ratio of the maximum value to the middle value of the normal breathing rate range as the first coefficient. The specific process of the central server controlling the running path of the elevator according to the running direction of the elevator and the demand queue is as follows: if the elevator is currently going up, after transporting residents to their respective target floors, if the current floor is the top floor, the down-going stop floor is selected according to the current floor and priority, and the elevator goes down according to the selected stop floor. If the current floor is not the top floor, the demand queue is used to determine whether there is a floor above the current floor with a priority greater than the priority threshold. If so, the elevator goes up to the highest floor among the floors with a priority greater than the priority threshold, and the elevator no longer goes up. The down-going stop floor is selected according to the current floor and priority, and the elevator goes down according to the selected stop floor. If the elevator is currently going down, the down-going stop floor is selected according to the current floor and priority. The specific process of selecting the down-going stop floor according to the current floor and priority is to determine the interval between the current floor and the first floor, determine the remaining space of the elevator car according to the second camera, determine the floor within the interval according to the demand queue, sort the demand information from high to low according to priority, and select the floors corresponding to the demand information as the stop floors in the sorted order until the space occupied by the sum of the number of people waiting for all the stop floors is closest to the remaining space under the premise that it is not greater than the remaining space.

[0032] In normal mode, multiple elevators in an elevator group are controlled in parallel.

[0033] S3, wait for the monitoring unit to stop working, the central server sets the working mode of the elevator group to the simplified working mode, the central server calculates the time interval between the current time and the adjacent time endpoints of the working period, starts timing from zero, and determines whether the timing time is equal to the time interval. If it is equal, return to S2. In the simplified working mode, one elevator is set to the working state, and the rest of the elevators are set to the stopped working state. The elevators in the working state provide transportation services along the floor sequence according to the elevator request signal of the residents.

[0034] The above disclosure is only the preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the present invention. It should be pointed out that for those skilled in the art, any equivalent changes made to the scheme of the present invention without departing from the design structure and principle of the present invention are considered to be within the protection scope of the present invention.

Claims

1. An intelligent control system for an elevator, characterized in that ,The intelligent control system includes a central server, a waiting monitoring unit and an elevator monitoring unit, the central server and the waiting monitoring unit communicate via a wired way, and the central server and the elevator monitoring unit communicate via a wireless way; The waiting monitoring unit is arranged in the waiting room of each floor, and includes a mounting base, a millimeter wave radar and a first camera; The elevator monitoring unit is arranged in the elevator car and includes a pressure sensor array and a second camera; The intelligent control system controls an elevator group, which includes more than two elevators.

2. An intelligent control method for an elevator, based on the intelligent control system of the elevator according to claim 1, characterized in that ,The intelligent control method comprises the following steps: S1, determine whether the current time belongs to the working period, if yes, enter S2, otherwise, enter S3; S2, start the waiting monitoring unit, the central server sets the working mode of the ladder group according to the data of the waiting monitoring unit, starts timing from zero, and determines whether the timing time is equal to the detection cycle. If so, return to S1; S3, wait for the monitoring unit to stop working, the central server sets the working mode of the ladder group to the simplified working mode, the central server calculates the time interval between the current time and the adjacent time endpoints of the working period, starts timing from zero, and determines whether the timing time is equal to the time interval. If so, return to S2.

3. The intelligent control method according to claim 2, characterized in that: In S2, the working modes of the elevator group specifically include an up priority mode, a down priority mode and a normal mode. The specific process of the central server setting the working mode of the elevator group according to the data of the waiting monitoring unit is that the first camera of each waiting monitoring unit shoots the picture of the corresponding elevator waiting room, and the central server determines the number of waiting people on each floor through image recognition, and takes the number of waiting people on the first floor as the number of people going up, and adds up the number of waiting people on the remaining floors as the number of people going down. If the number of people going down is greater than the number threshold, and the number of people going down is greater than twice the number of people going up, the central server sets the working mode of the elevator group to the down priority mode. If the number of people going up is greater than the number threshold, and the number of people going up is greater than twice the number of people going down, the central server sets the working mode of the elevator group to the up priority mode. Except for the above two cases, the central server sets the working mode of the elevator group to the normal mode.

4. The intelligent control method according to claim 3, characterized in that: In the upward priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room. The central server determines the number of waiting people on each floor through image recognition, and puts the floor and the corresponding number of waiting people into the demand queue as a demand information. The central server controls the running path of the elevator according to the running direction of the elevator and the demand queue.

5. The intelligent control method according to claim 4, characterized in that: The specific process of the central server controlling the elevator's running path according to the elevator's running direction and demand queue is as follows: if the elevator is currently going up, after transporting residents to their respective target floors, the elevator will no longer go up, and will select a downward stop floor based on the current floor and interval threshold, and then go down based on the selected stop floor; if the elevator is currently going down, it will select a downward stop floor based on the current floor and interval threshold.

6. The intelligent control method according to claim 5, characterized in that: The specific process of selecting the downward stopping floor according to the current floor and the interval threshold is to determine the interval between the current floor and the first floor, determine the remaining space of the elevator car according to the second camera, and select the stopping floor based on the constraint conditions. The constraint conditions include: (1) the floor interval between any two adjacent stopping floors in the running path is greater than the interval threshold; (2) the space occupied by the sum of the number of waiting persons at the stopping floors in the running path is not greater than the remaining space.

7. The intelligent control method according to claim 3, characterized in that: In the downlink priority mode, the first camera of each waiting monitoring unit captures the image of the corresponding elevator waiting room. The central server determines the priority and number of waiting people on each floor through image recognition, and puts the floor, priority and corresponding number of waiting people into the demand queue as a demand information. The central server controls the running path of the elevator according to the running direction of the elevator and the demand queue.

8. The intelligent control method according to claim 7, characterized in that: The priority is calculated as adjustment coefficient × basic priority. The basic priority is determined by judging whether there are students with backpacks or people of working age in the waiting crowd on the floor based on the image taken by the first camera. If so, the basic priority is 2; otherwise, the basic priority is 1. The adjustment coefficient is determined by controlling the millimeter-wave radar to detect the breathing rate of each waiting resident, selecting the maximum value, and taking the ratio of the maximum value to the middle value of the normal breathing rate range as the first coefficient.

9. The intelligent control method according to claim 7, characterized in that: The specific process of the central server controlling the elevator's running path according to the elevator's running direction and demand queue is as follows: if the elevator is currently going up, after transporting residents to their respective target floors, if the current floor is the top floor, the downward stop floor is selected according to the current floor and priority, and the elevator descends according to the selected stop floor; if the current floor is not the top floor, the demand queue is used to determine whether there is a floor above the current floor with a priority greater than the priority threshold; if so, the elevator ascends to the highest floor among the floors with a priority greater than the priority threshold, the elevator no longer goes up, and the downward stop floor is selected according to the current floor and priority, and the elevator descends according to the selected stop floor; if the elevator is currently going down, the downward stop floor is selected according to the current floor and priority.

10. The intelligent control method according to claim 9, characterized in that: The specific process of selecting the downward stopping floor according to the current floor and priority is to determine the interval between the current floor and the first floor, determine the remaining space in the elevator car according to the second camera, determine the floors within the interval according to the demand queue, sort the demand information from high to low according to priority, and select the floors corresponding to the demand information as the stopping floors in the sorted order until the space occupied by the sum of the number of waiting people on all the stopping floors is closest to the remaining space without being greater than the remaining space.

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