CN110155827B

CN110155827B - Intelligent control system of group elevator

Info

Publication number: CN110155827B
Application number: CN201910391893.XA
Authority: CN
Inventors: 毕超; 孙哲伟
Original assignee: Beijing University of Chemical Technology
Current assignee: Beijing University of Chemical Technology
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-08-04
Anticipated expiration: 2039-05-13
Also published as: CN110155827A

Abstract

An intelligent control system of group elevators belongs to the technical field of intelligent control. The mobile phone client transmits the information of the pre-taking elevator to the database; the passenger flow mode determining module determines a passenger flow mode according to the pre-boarding information, and the elevator running mode selecting module determines an elevator running mode according to the passenger flow mode; the elevator allocation module acquires the number of the pre-taking elevator; the elevator operation control module controls the elevators corresponding to the pre-taking elevator numbers to use the determined elevator operation modes to carry passengers; the sensor module acquires elevator operation information and stores the elevator operation information in the database through the elevator operation control module; and the elevator operation mode optimization module continuously improves the comparison relation between the passenger flow mode and the elevator operation mode based on the information in the database. The intelligent control system can reserve an elevator to be taken in advance for a user, select an elevator running mode with the highest efficiency, and can timely and effectively adjust the elevator running mode when the passenger flow taking the elevator suddenly changes or is in an emergency, and the elevator running mode optimization module continuously improves the contrast relation between the passenger flow mode and the elevator running mode based on the information in the database.

Description

Intelligent control system of group elevator

Technical Field

The invention relates to an intelligent control system of group elevators, belonging to the technical field of intelligent control.

Background

With the high-speed development of cities, large high-rise buildings become the mainstream of city construction, and elevators are the most main means of uplink and downlink traffic in the buildings.

Although the elevators in the building can meet the basic requirements of passengers living or working in the high-rise building under normal conditions, when the passenger flow of the elevators changes suddenly or emergencies occur, the problems of passenger detention, congestion in the elevators, overlong waiting time of passengers, high energy consumption of the elevators and the like often occur, and the problems are mainly that the elevators can not adjust the running modes of the elevators timely and effectively according to the change of the passenger flow of the elevators.

Disclosure of Invention

The invention aims to solve the problems of passenger detention, congestion in an elevator, overlong passenger waiting time, high elevator energy consumption and the like when passenger flow for taking an elevator suddenly changes or an emergency occurs, and provides an intelligent control system for group elevators.

An intelligent control system of group elevators can be used together with a traditional elevator control system, and comprises a mobile phone client, a database, a passenger flow mode determining module, an elevator operation mode selecting module, an elevator arrival time predicting module, an elevator distributing module, an elevator operation control module, a sensor module and an elevator operation mode optimizing module;

the elevator is the operation object of the intelligent system, so the elevator is not included in the design of the intelligent system, and the elevator connected with the intelligent control system comprises but not limited to a car unit and a power system in the aspect of ensuring the normal operation of the intelligent control system.

The mobile phone client comprises an information transmission unit, a pre-taking elevator information operation unit, a pre-taking elevator information input unit, an emergency mode calling unit, a pre-taking elevator number prompting unit and an elevator running state monitoring unit;

the information input by the pre-taking elevator information input unit comprises the floor where the passenger is located, the passenger destination floor and the number of passengers taking the elevator;

wherein, the database comprises an information execution process recording unit and an elevator operation process recording unit;

the elevator allocation module comprises an elevator allocation index calculation unit and an allocation decision unit;

wherein, the number of the sensor modules is n, and the sensor modules are marked as a sensor module 1, a sensor module 2, · · a sensor module n;

wherein each sensor module includes, but is not limited to, one or more flat bed sensors, counting sensors, load cells;

the connection relation between each module and each unit in the intelligent control system of the group elevator is as follows:

the mobile phone client is connected with the database, and the passenger flow mode determining module is connected with the database; the elevator operation mode selection module is connected with the passenger flow mode determination module; the elevator allocation module is connected with the elevator operation mode selection module and the database; the database and the elevator operation control module are connected with the elevator arrival time prediction module; the elevator operation control module is connected with the elevator arrival time prediction module, the database, the elevator allocation module and the sensor module; the sensor module is connected with the elevator operation control module and the elevator; the elevator operation mode optimization module is respectively connected with the database and the elevator operation mode selection module; specifically, the method comprises the following steps: the pre-taking elevator information input unit in the mobile phone client is connected with the pre-taking elevator information operation unit; an emergency mode calling unit and a pre-taking elevator information operation unit in the mobile phone client are connected with an information execution process recording unit in the database through an information transmission unit; an elevator operation process recording unit in the database is respectively connected with a passenger flow mode determining module, an elevator operation mode selecting module, an elevator operation state monitoring unit in a mobile phone client, an elevator arrival time predicting module and an elevator operation control module; an elevator allocation index calculation unit in the elevator allocation module is connected with an allocation decision unit; the information execution process recording unit, the elevator operation control module and the elevator operation mode selection module in the database are connected with the elevator allocation module; the elevator operation control module is respectively connected with an information execution process recording unit, an elevator operation control module, a leveling sensor, a car door infrared correlation sensor and a weighing sensor in the sensor modules 1 to n in the database; an information execution process recording unit in the database is respectively connected with a pre-sitting elevator number prompting unit, an elevator allocation module and an elevator operation control module in the mobile phone client; a leveling sensor, a counting sensor and a weighing sensor in the sensor modules 1 to n are respectively connected with the elevators 1 to n; the leveling sensors, the counting sensors and the weighing sensors in the sensor modules 1 to n are all connected with the elevator operation control module; the elevator operation mode optimization module is respectively connected with the database and the elevator operation mode selection module;

the pre-taking elevator information input by the pre-taking elevator information input unit in the mobile phone client is submitted by the pre-taking elevator information operation unit and then is transmitted to the information execution process recording unit in the database through the information transmission unit for recording;

the passenger flow mode determining module determines the passenger flow mode according to the pre-taking elevator information in the information execution process recording unit, stores the passenger flow mode into the information execution process recording unit and sends the passenger flow mode to the elevator running mode selecting module; the elevator operation mode selection module determines an elevator operation mode according to the comparison relationship between the passenger flow mode and the preset passenger flow mode and the elevator operation mode, stores the elevator operation mode into an elevator operation process recording unit and sends the elevator operation mode to the elevator allocation module;

the elevator allocation module allocates elevators for passengers by using an elevator allocation index calculation unit and an allocation decision unit according to the pre-taking elevator information sent by the information execution process recording unit, the determined passenger flow mode and the determined elevator operation mode, and acquires the numbers of the pre-taking elevators; then, the elevator allocation module sends the numbers of the pre-taking elevators to the elevator operation control module and sends the numbers to the information execution process recording unit for storage; the information execution process recording unit sends the numbers of the pre-taking elevators to the pre-taking elevator number prompting unit to remind passengers of which elevator to take; the elevator operation control module selects an elevator with a corresponding number according to the number of the pre-taking elevator, and then the elevator operation control module uses the elevator operation mode determined by the elevator operation mode selection module to take the passenger;

in the running process of the elevator, the elevator running control module acquires information of the running of the elevator through the sensor module, wherein the information comprises the floor where the elevator is located, the estimated stopping floor of the elevator, the running direction of the elevator, the number of people in the elevator, the total weight of the elevator, the boarding time of passengers, the information execution progress and whether all the elevators are landed; the elevator operation control module transmits the collected floor where the elevator is located, the elevator operation direction, the number of people in the elevator and the total weight of the elevator to an elevator operation process recording unit for storage, transmits the boarding time of passengers, the information execution progress and whether all boarding is performed to the information execution process recording unit for storage, and transmits the estimated stop floor of the elevator to an elevator arrival time prediction module; the elevator arrival time prediction module calculates the estimated arrival time of the elevator, transmits the estimated arrival time of the elevator to the elevator operation process recording unit for storage, and the elevator operation process recording unit transmits the estimated arrival time of the elevator to the elevator operation state monitoring unit for display;

the elevator operation mode optimization module performs measurement and calculation on all information stored in the process recording unit and the elevator operation process recording unit based on the information in the database to obtain an elevator evaluation index, outputs the optimal operation modes corresponding to different passenger flow modes aiming at the comparison of the elevator evaluation index, and transmits the optimal operation modes to the elevator operation mode selection module;

the pre-taking elevator information operation unit can submit, cancel and change the information input by the pre-taking elevator information input unit, and the submitting, canceling and changing functions can be used only once in unit time;

when a passenger has an emergency, the emergency mode calling unit directly calls the emergency running information of the elevator, so that the passenger can take the elevator more quickly and can only call once in unit time;

the information transmission unit is communicated with the information execution process recording unit in the database through a wireless network, Bluetooth or NFC technology;

the number prompting unit of the pre-riding elevator in the mobile phone client displays information from the information execution process recording unit and prompts the number of the elevator to be taken by a passenger;

the elevator running state monitoring unit in the mobile phone client displays information from the elevator running process recording unit, wherein the information comprises a floor where an elevator is located, an estimated elevator stopping floor, an estimated elevator arrival time and an elevator running direction;

the information recorded by the information execution process recording unit in the database comprises the floor where a passenger is located, a passenger destination floor, the number of people taking the elevator, information generation time, the number of the assigned elevator, the time of the passenger getting on the elevator, the time of the passenger getting off the elevator, information execution progress and whether all elevators are on;

the information recorded by the elevator operation process recording unit in the database comprises the floor where the elevator is located, the estimated stop floor of the elevator, the estimated arrival time of the elevator, the operation direction of the elevator, the number of people in the elevator and the total weight of the elevator;

the elevator operation control module can control the elevator to start and stop, open and close a door and acquire elevator operation information through the sensor module;

the working process of the intelligent control system comprises the following steps:

step I: the passenger calls an elevator based on an elevator taking rule through the mobile phone client, and the mobile phone client transmits the elevator taking-in-advance information of the passenger to an information execution process recording unit in the database through Bluetooth, a wireless network or NFC for storage;

wherein, the ladder taking rule is as follows: the passenger can only submit the pre-taking elevator information or the emergency operation information once in unit time, and the setting is set to prevent malicious users from submitting information for many times and disturb the distribution of the elevator distribution module to the pre-taking elevator information; the information of taking the elevator in advance comprises the floor where the passenger is located, the destination floor of the passenger and the number of people taking the elevator;

step II: a database in the server numbers the information of the pre-taking elevator transmitted in the step I and records the information generation time; the information execution progress variable is marked as a state that the information is allocated to the elevator; the passenger flow mode determining module carries out passenger flow mode classification on the pre-assigned information of the elevator car and transmits the information to the information execution process recording unit for storage;

the passenger flow mode classification is determined by a passenger flow mode determining unit according to the type of the pre-elevator taking information which is not distributed in unit time and the number of people in the type of the pre-elevator taking information;

the type of the information of the pre-taking elevator comprises uplink information starting from a first floor, downlink information arriving at a first floor, interlayer traffic information and emergency operation information;

wherein, the number of people in the different types of pre-taking elevator information is calculated according to the percentage of the maximum allowed number of people taking the elevator carried by the group elevator;

wherein, the maximum number of persons taking the elevator in the group elevator is represented by the sum of the maximum number of persons carrying the elevator in each elevator forming the group elevator;

the passenger flow mode type classification specifically includes:

if the sum of the number of people in the ascending information from one floor in unit time is greater than the specific proportion of the maximum number of people for elevator group to carry, the passenger flow mode is determined as a centralized ascending passenger flow mode;

b, if the sum of the number of people in all the descending information reaching one floor in unit time is greater than the specific proportion of the maximum number of people for elevator group carrying, determining the passenger flow mode as a centralized descending passenger flow mode;

if the sum of the number of people in the interlayer traffic information of which the departure layer is the specific layer in unit time is greater than the specific proportion of the maximum number of people taking the elevator for carrying by the group elevator, determining the passenger flow mode as a specific layer centralized passenger flow mode;

if the emergency operation information appears in unit time, determining the passenger flow mode as an emergency passenger flow mode;

e, if the information of the pre-boarding elevator in unit time does not meet the four conditions, determining the passenger flow mode as a conventional passenger flow mode;

the specific proportion of the maximum number of passengers is different when the group elevators corresponding to different passenger flow mode types carry the elevator group;

step III: the elevator operation mode selection module determines an elevator operation mode according to a preset contrast relation between the passenger flow mode and the elevator operation mode, transmits the determined elevator operation mode to the elevator allocation module, and transmits the determined elevator operation mode to the elevator operation process recording unit to store the elevator operation mode;

the elevator operation mode is determined by an elevator operation mode selection module based on a passenger flow mode, and the comparison relation is specifically as follows:

if the passenger flow mode is determined to be the centralized ascending passenger flow mode, selecting a composite elevator running mode consisting of a single-layer running mode and a double-layer running mode;

wherein, the elevator only receives the stop floor information of a single floor in the single-floor operation mode;

wherein, the elevator only receives double-layer stop information in a double-layer operation mode;

b, if the passenger flow mode is determined to be a centralized downlink passenger flow mode, selecting a composite elevator operation mode consisting of an uplink operation mode and a downlink operation mode;

wherein, the elevator only receives the up-running floor-stopping information in the up-running mode;

wherein, the elevator only receives the information of the down stop floor in the down running mode;

c, if the passenger flow mode is determined to be a specific floor centralized passenger flow mode, selecting a composite elevator running mode consisting of a single-layer running mode and a double-layer running mode;

d, if the passenger flow mode is determined to be the emergency passenger flow mode, selecting an emergency corresponding operation mode;

the emergency response mode is that after the elevator receives any piece of emergency operation information, passengers in the elevator are placed to the nearest floor to receive emergency call passengers;

e, if the passenger flow mode is determined to be the conventional passenger flow mode, selecting a common operation mode;

wherein, the common operation mode is that the elevator receives all the elevator taking information;

step IV: the information of taking a car in advance in the information execution process recording unit, the passenger flow mode determined by the passenger flow mode determining module and the elevator running mode determined by the elevator running mode selecting module are all sent to the elevator allocation module, and the elevator allocation module obtains the allocation index corresponding to each elevator by using the elevator allocation index calculating unit;

the elevator allocation index calculation unit classifies and calculates allocation indexes as follows:

when the elevator is in a running state and the elevator runs upwards due to the information of ascending elevator riding, the method is divided into the following two conditions; the situation is that when the information of taking the elevator in advance is the information of taking the elevator upwards, the floor where the passenger is located is higher than the floor where the elevator is located by more than two layers, the floor where the passenger is located is not higher than the expected stop floor of the elevator, and the distribution index delta T is calculated through the formula (1):

wherein f is_startThe floor where the passenger is located, F_currentIs the floor where the elevator is located, delta F ═ F_start-F_current|-1，H_eFor each floor of elevator height, T_stopNAnd V_maxNThe stopping time and the maximum running speed of the multi-storey elevator are obtained;

the second situation is that when the pre-taking information is ascending taking information, the elevator is in the process of ascending from a floor lower than the predicted stop floor of the elevator to the predicted stop floor of the elevator, the floor where the passenger is located is the same as the predicted stop floor of the elevator, and the distribution index delta T is calculated through the formula (2):

the information of ascending elevator taking is that the destination floor of the passenger is larger than the floor where the passenger is located;

when the elevator is in a running state and the elevator runs downwards due to the descending elevator taking information, the two situations are divided into the following two situations; the method comprises the following steps that when pre-taking elevator information is descending elevator taking information, the floor where a passenger is located is at least two layers lower than the floor where an elevator is located, the floor where the passenger is located is not lower than the predicted stopping floor of the elevator, and an allocation index delta T is calculated through a formula (1); when the pre-taking information is descending taking information, the elevator descends to the estimated stopping floor of the elevator from the floor higher than the estimated stopping floor of the elevator, the floor where the passenger is located is the same as the estimated stopping floor of the elevator, and the distribution index delta T is calculated through a formula (2);

the information of taking the elevator downwards is that the destination floor of the passenger is smaller than the floor where the passenger is located;

and IV, when the elevator is in a running state and the elevator runs upwards due to the descending elevator taking information, the following two conditions are adopted: the method comprises the following steps that firstly, when the pre-taking elevator information is ascending elevator taking information, the floor where a passenger is located is at least two layers higher than the floor where an elevator is located, and the predicted stopping floor of the elevator is at least two layers away from the floor where the elevator is located, the distribution index delta T is calculated through a formula (1); the second situation is that the pre-taking elevator information is the downward taking elevator information, and when the floor where the passenger is located is not lower than the predicted stop floor of the elevator and the predicted stop floor of the elevator is separated from the floor where the elevator is located by at least two layers, the distribution index delta T is calculated through a formula (1);

when the elevator is in the running state and the elevator runs downwards due to the ascending elevator taking information, the following two conditions are divided: the method is characterized in that the pre-taking information is downlink taking information, when the floor where a passenger is located is at least two layers lower than the floor where an elevator is located and the predicted stopping floor of the elevator is at least two layers away from the floor where the elevator is located, the distribution index delta T is calculated through a formula (1); the second situation is that the pre-taking elevator information is ascending elevator taking information, and the allocation index delta T is calculated through a formula (1) when the floor where the passenger is located is not higher than the predicted stop floor of the elevator and the predicted stop floor of the elevator is separated from the floor where the elevator is located by at least two layers;

and IV, when the elevator is in a stop state and the elevator runs upwards due to the ascending elevator taking information, the following six conditions are divided: the first condition is that the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located and the floor where the elevator is located are on the same layer, and the distribution index delta T is 0; and the second situation is that the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located is higher than the floor where the elevator is located, and the distribution index delta T is calculated by a formula (3):

wherein R is the elevator floor-stopping time, the value in the simulation is a random value in the range of 3-7s, and delta F is | F_start-F_current|，T_start1And T_stop1For starting and stopping times, V, when the elevator is running at one floor_max1The maximum speed of the elevator when running on one floor;

the third situation is that the information of taking the elevator in advance is the information of taking the elevator downwards, the floor where the passenger is located is higher than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3); in the fourth case, the pre-taking elevator information is the descending taking elevator information, the floor where the passenger is located and the floor where the elevator is located are on the same layer, and the distribution index delta T is equal to 0; in the fifth case, the pre-taking elevator information is the descending taking elevator information, the floor where the passenger is located is lower than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3); in the sixth case, the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located is lower than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3);

and IV, F, when the elevator is in a stop state and the elevator runs downwards due to the descending elevator taking information, the following six conditions are divided: the first situation is that the pre-taking elevator information is the descending taking elevator information, the floor where the passenger is located and the floor where the elevator is located are on the same layer, and the distribution index delta T is equal to 0; the second situation is that the pre-taking elevator information is the descending taking elevator information, the floor where the passenger is located is lower than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3); the third situation is that the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located is lower than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3); in the fourth case, the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located and the floor where the elevator is located are on the same layer, and the distribution index delta T is calculated through a formula (3); the fifth situation is that the information of taking the elevator in advance is the information of taking the elevator in an ascending way, the floor where the passenger is located is higher than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3); in the sixth situation, the information of taking the elevator in advance is the information of taking the elevator downwards, the floor where the passenger is located is higher than the floor where the elevator is located, and the distribution index delta T is calculated through a formula (3);

and IV, G, when the elevator is in a stop state and the elevator runs downwards due to the descending elevator taking information, the following two conditions are divided: the method is characterized in that the pre-taking elevator information is ascending taking elevator information, and when the floor where a passenger is located is not lower than the floor where the elevator is located, the distribution index delta T is calculated through a formula (3); the second situation is that the pre-taking elevator information is the descending taking elevator information, and when the floor where the passenger is located is not lower than the target floor, the distribution index delta T is calculated through a formula (3);

when the elevator is in a stop state and the elevator runs downwards due to the ascending elevator taking information, the following two conditions are divided: the method is characterized in that the pre-taking elevator information is the descending taking elevator information, and when the floor where a passenger is located is not higher than the floor where an elevator is located, the distribution index delta T is calculated through a formula (3); the second situation is that the information of pre-taking the elevator is the information of ascending taking the elevator, and when the floor where the passenger is located is not higher than the target floor, the distribution index delta T is calculated through a formula (3);

i when the elevator is in an idle state and pre-taking information appears, the pre-taking information is sent to an elevator allocation index calculation unit to participate in calculation, and an allocation index delta T is calculated by a formula (4):

wherein index Δ F ═ F_current-f_start|；

Step V: after an elevator allocation index calculation unit in an elevator allocation module obtains an allocation index corresponding to each elevator, the allocation index is sent to an allocation decision unit to allocate the elevator to a passenger to obtain a pre-taking elevator number, an information execution progress variable is marked to be in a state of 'information is allocated to the elevator, but the elevator does not reach a target floor', then the pre-taking elevator number is sent to a pre-taking elevator number prompting unit through an information execution process recording unit to prompt the passenger which elevator to take, and the pre-taking elevator number is sent to an elevator operation control module;

after receiving the distribution index, the distribution decision unit performs the following operations:

if the number of the elevators corresponding to the minimum value of the allocation index is 1, elevator taking information is allocated to the elevators;

if the number of the elevators corresponding to the minimum value of the allocation index is greater than 1, the elevators to be allocated by the elevator taking information need to be decided according to whether the minimum value of the allocation index is zero or not and the motion states of the elevators; when the minimum value of the distribution index is zero, the minimum value of the distribution index cannot be zero when the elevator is in the running state, so that the elevator in the running state is not considered; when the minimum value of the elevator allocation index indexes in the stopping state and the idle state is zero, the floor where the elevator is located is the same as the floor where the allocated passenger is located; because the elevator in the stop state is in the state that the door is opened to allow passengers to get on and off the elevator, the passengers do not need to wait for directly entering the elevator, so that the elevator in the stop state is preferentially considered to receive the information of taking the elevator in advance; when only the minimum value of the elevator allocation index in the idle state is zero, the pre-taking elevator information is allocated to the elevator in the idle state. For the condition that the minimum value of the distribution index is not zero, if the distribution decision indexes of the elevators in the running state, the stopping state and the idle state are the same as the minimum value at the same time, in order to ensure that passengers can take the elevator, the priority selection sequence of elevator distribution is the idle state elevator, the running state elevator and the stopping state elevator. It is worth noting that when a plurality of elevators in the same state meet the above conditions at the same time, the system preferentially allocates the pre-taking information to the elevator with smaller number;

step VI: the elevator operation control module controls the elevator corresponding to the number of the pre-taking elevator from the elevator distribution module, and selects the elevator operation mode determined by the elevator operation mode selection module to carry passengers; the method comprises the steps that in the process of controlling the operation of the elevator, the information of the operation of the elevator is collected through a sensor module and is continuously transmitted to an information execution process recording unit, an elevator operation process recording unit and an elevator arrival time prediction module respectively;

the elevator operation information in the information execution process recording unit comprises but is not limited to the boarding time of passengers, the information execution progress and whether all the elevators are landed or not; the elevator running information in the elevator running process recording unit comprises but is not limited to the floor where the elevator is located, the running direction of the elevator, the number of people in the elevator and the total weight of the elevator; the elevator operation information in the elevator arrival time prediction module is an estimated stop floor of the elevator;

the elevator operation information process recorded by the information execution process recording unit is as follows:

after the pre-riding elevator reaches the floor where the passenger is located, the elevator operation control module records the boarding time of the passenger and transmits the boarding time to the information execution process recording unit; when the elevator reaches the passenger destination floor, the elevator operation control module records the passenger departure time and transmits the passenger departure time to the information execution process recording unit; the information execution progress variable is marked as an 'information execution completion' state; when the phenomenon that part of passengers cannot climb the elevator due to the limitation of the number of accommodated passengers of the elevator occurs, the elevator operation control module marks that all the ascending variables are 0, and the information execution process recording unit needs to reconstruct the pre-taking information for the passengers who do not ascend the elevator.

Step VII: the elevator arrival time prediction module obtains the estimated arrival time of the elevator according to the ratio of the absolute value difference between the floor where the passenger is located and the estimated stop floor of the elevator to the operation speed of the elevator, and sends the estimated arrival time of the elevator to the elevator operation process recording unit; the elevator running process recording unit sends the floor where the elevator is located, the estimated stopping floor of the elevator, the estimated arrival time of the elevator and the running direction of the elevator to the elevator running state monitoring unit, and passengers acquire information through the elevator running state monitoring unit;

step VIII: the elevator operation mode optimization module obtains elevator evaluation indexes based on all information stored in the information execution process recording unit and the elevator operation process recording unit in the database, outputs optimal operation modes corresponding to different passenger flow modes according to the principle that the elevator operation mode is optimal when the elevator evaluation indexes are smaller, and transmits the optimal operation modes to the elevator operation mode selection module;

the elevator evaluation indexes comprise average elevator taking time, average elevator waiting time, elevator crowding degree and elevator energy consumption of passengers; the average elevator taking time is the average time spent by each passenger on one elevator floor, and the calculation method comprises the following steps: subtracting the passenger boarding time from the passenger boarding time in the information execution process recording unit; the average elevator waiting time is the time spent by each passenger sending information of taking the elevator in advance until the passenger gets on the elevator, and the calculation method comprises the following steps: the passenger boarding time in the information execution process recording unit subtracts the information generation time; the crowdedness degree of the elevator is the ratio of the number of people in the elevator in the recording unit in the running process of the elevator to the number of people accommodated in the elevator; the number of people in the elevator is less than or equal to the number of people accommodated in the elevator; the energy consumption of the elevator is the work done by each floor of the elevator operation, and the calculation method comprises the following steps: the elevator operation process records the product of the total weight of the elevator in the unit and the height of the elevator on each floor.

Advantageous effects

Compared with the traditional elevator system, the intelligent control system of the group elevator has the following beneficial effects:

1. the intelligent system is more convenient in man-machine interaction, and a user can reserve an elevator to be taken in advance through the mobile phone client, so that the elevator waiting time of passengers is reduced;

2. the invention provides a plurality of passenger flow modes, and the elevator running mode in the system can be automatically adjusted according to the passenger flow information of the elevator which is not executed, thereby greatly improving the elevator running efficiency and reducing the energy consumption of the elevator running;

3. when the passenger flow on the elevator suddenly changes or emergencies occur, the invention can effectively adjust the running mode in time according to the change of the passenger flow on the elevator;

4. the invention can update the contrast relation between the passenger flow mode and the elevator running mode on the basis of the acquired passenger flow information and the elevator running information, thereby further improving the elevator running efficiency.

Drawings

Fig. 1 is a schematic diagram of the composition and connection of an intelligent group elevator control system according to the present invention.

Detailed Description

The group elevator intelligent control system of the invention will be described in detail with reference to the attached drawings in the embodiment of the invention.

The embodiment describes the specific implementation of the group elevator intelligent control system for a certain office building when the staff prepares to work and take the elevator. The office building is provided with 4 elevators, 2 elevators are in an idle state before work and wait for calling in the 1 st building, and 2 elevators are in a running state to convey passengers.

Fig. 1 shows a configuration of the group elevator intelligent control system in an office building. As can be seen from the figure, the intelligent control system of the group elevator comprises a mobile phone client, a database, a passenger flow mode determination module, an elevator operation mode selection module, an elevator arrival time prediction module, an elevator allocation module, an elevator operation control module, a sensor module and an elevator operation mode optimization module. The mobile phone client comprises an information transmission unit, a pre-taking elevator information operation unit, a pre-taking elevator information input unit, an emergency mode calling unit, a pre-taking elevator number prompting unit and an elevator running state monitoring unit; wherein, the database comprises an information execution process recording unit and an elevator operation process recording unit; the elevator allocation module comprises an elevator allocation index calculation unit and an allocation decision unit; wherein, each sensor module includes flat bed sensor, count sensor, weighing sensor.

In specific implementation, the mobile phone client intelligently controls app for the group elevator, and passengers before work input pre-taking elevator information from 1 floor to each floor in the pre-taking elevator information input unit; the passengers in the pre-taking elevator information operation unit submit, cancel and change the pre-taking elevator information; the emergency mode calling unit can directly make emergency call to the elevator when the passenger has emergency, so that the passenger can take the elevator more quickly; prompting to remind the passenger of the number of the elevator to be taken by taking the elevator number in advance; the elevator running state monitoring unit displays the floor where the elevator is located, the estimated stop floor of the elevator, the estimated arrival time of the elevator and the running direction of the elevator; the information transmission unit communicates with the information execution process recording unit in the database through a wireless network. The passengers can reserve the elevator in advance, remotely monitor the operation information of the elevator and obtain the optimal operation mode of the elevator through the intelligent control app of the group elevator.

The database comprises an information execution process recording unit and an elevator operation process recording unit; when the elevator information processing system is implemented specifically, the information execution process recording unit records the floor where a passenger is located, the passenger destination floor, the number of people taking the elevator, the information generation time, the number of the assigned elevators, the time of the assigned elevators, the boarding time of the passengers, the information execution progress and whether all elevators are landed or not; the elevator operation process recording unit records the floor where the elevator is located, the estimated stop floor of the elevator, the estimated arrival time of the elevator, the operation direction of the elevator, the number of people in the elevator and the total weight of the elevator.

When the passenger flow mode determining module is specifically implemented, the passenger flow mode determining module determines the passenger flow mode according to the pre-boarding information transmitted by the information execution process recording unit; if the sum of the number of people in the ascending information which starts from one floor within 5 minutes is more than 50% of the maximum number of people who take the elevator for the group elevator to carry, the passenger flow mode is determined as a centralized ascending passenger flow mode; if the sum of the number of people in all the descending information reaching one floor in 5 minutes is more than 50% of the maximum number of people taking the elevator for the group elevator to carry, the passenger flow mode is determined as a centralized descending passenger flow mode; if the sum of the number of people in the interlayer traffic information of which the departure layer is the specific layer within 5 minutes is more than 50% of the maximum number of people for the group elevator to carry, determining the passenger flow mode as a concentrated passenger flow mode of the specific layer; if the emergency operation information appears within 5 minutes, the passenger flow mode is determined as an emergency passenger flow mode; if the information of the pre-boarding elevator appearing within 5 minutes does not meet the four conditions, determining the passenger flow mode as a conventional passenger flow mode;

the elevator operation mode selection module determines the operation mode of the elevator according to the preset contrast relationship between the passenger flow mode and the elevator operation mode; in specific implementation, if the passenger flow mode is determined to be the centralized ascending passenger flow mode, selecting a composite elevator operation mode consisting of 2 single-layer operation modes and 2 double-layer operation modes; if the passenger flow mode is determined to be the centralized downlink passenger flow mode, selecting a composite elevator operation mode consisting of 1 uplink operation mode and 3 downlink operation modes; if the passenger flow mode is determined to be a specific floor centralized passenger flow mode, selecting a composite elevator operation mode consisting of 2 single-layer operation modes and 2 double-layer operation modes; if the passenger flow mode is determined to be the emergency passenger flow mode, 1 elevator is selected to operate in an emergency response operation mode; if the passenger flow mode is determined to be the normal passenger flow mode, 4 elevators are selected to run in the normal running mode.

When the elevator allocation module is implemented specifically, the elevator is allocated to the passengers according to a large amount of pre-taking elevator information sent by the information execution process recording unit within 5 minutes and the elevator operation mode, and the elevator allocation index calculation unit and the allocation decision unit of the elevator allocation module can ensure that the elevator can take more passengers, so that the elevator operation efficiency is improved.

The elevator operation control module is connected with the sensor module, and when the concrete implementation, the quantity of elevator is 4 for n, and the quantity of sensor module equals the quantity of elevator, marks as: the sensor module comprises a sensor module 1, a sensor module 2, a sensor module 3 and a sensor module 4; the number of the leveling sensors in each sensor module is 18, which is the same as the number of the floors of the elevator, the number of the counting sensors in each sensor module is not limited to 1, and the number of the weighing sensors in each sensor module is 1.

the mobile phone client is connected with the database, and the passenger flow mode determining module is connected with the database; the elevator operation mode selection module is connected with the passenger flow mode determination module; the elevator allocation module is connected with the elevator operation mode selection module and the database; the database and the elevator operation control module are connected with the elevator arrival time prediction module; the elevator operation control module is connected with the elevator arrival time prediction module, the database, the elevator allocation module and the sensor module; the sensor module is connected with the elevator operation control module and the elevator; the elevator operation mode optimization module is respectively connected with the database and the elevator operation mode selection module;

specifically, the method comprises the following steps:

the pre-taking elevator information input unit in the mobile phone client is connected with the pre-taking elevator information operation unit; an emergency mode calling unit and a pre-taking elevator information operation unit in the mobile phone client are connected with an information execution process recording unit in the database through an information transmission unit; an elevator operation process recording unit in the database is respectively connected with a passenger flow mode determining module, an elevator operation mode selecting module, an elevator operation state monitoring unit in a mobile phone client, an elevator arrival time predicting module and an elevator operation control module; an elevator allocation index calculation unit in the elevator allocation module is connected with an allocation decision unit; the information execution process recording unit, the elevator operation control module and the elevator operation mode selection module in the database are connected with the elevator allocation module; the elevator operation control module is respectively connected with an information execution process recording unit, an elevator operation control module, a leveling sensor, a car door infrared correlation sensor and a weighing sensor in the sensor modules 1 to n in the database; an information execution process recording unit in the database is respectively connected with a pre-sitting elevator number prompting unit, an elevator allocation module and an elevator operation control module in the mobile phone client; a leveling sensor, a counting sensor and a weighing sensor in the sensor modules 1 to n are respectively connected with the elevators 1 to n; the leveling sensors, the counting sensors and the weighing sensors in the sensor modules 1 to n are all connected with the elevator operation control module; the elevator operation mode optimization module is respectively connected with the database and the elevator operation mode selection module;

the specific implementation of the present application in a specific application scenario is described according to the composition and connection schematic diagram of the intelligent control system. Wherein a particular scenario is when a staff in front of an office building is ready to work on an elevator. The office building has 4 elevators, each 18 floors, 2 elevators are in idle state and wait for calling in 1 floor, 2 elevators are in running state.

A large number of passengers carry out elevator calling through mobile phone clients, and in order to prevent malicious users from submitting information for many times and disturb the distribution of programs to the information, the passengers are stipulated to submit pre-taking elevator information or emergency operation information only once within 5 min; the mobile phone client transmits the information of the passengers on the elevator in advance or the emergency operation information to an information execution process recording unit in a database through Bluetooth, a wireless network or NFC for storage; the number of the passengers in the information of the pre-taking elevator is 1 floor mostly, the passenger destination floor is all floors except 1 floor, and the number of the passengers in each piece of information of the pre-taking elevator is 1 or 2;

a database in the server numbers each piece of information of the pre-taking elevator transmitted by the mobile phone client and records the information generation time; the information execution progress variable is marked as a 'information is not allocated to an elevator' state, and the number is marked as '0'; the passenger flow mode determining module carries out passenger flow mode classification on the pre-assigned information of the elevator car and transmits the information to the information execution process recording unit for storage;

in specific implementation, because the number of people going upwards at the 1-floor is more, the passenger flow mode determining module determines that the passenger flow mode is the 1-floor centralized ascending passenger flow mode according to the condition that the sum of the number of people in the ascending information which starts from the one-floor is more than 50% of the maximum number of people taking the elevator for carrying by the group elevator within 5 minutes; the elevator operation mode selection module obtains a composite elevator operation mode formed by selecting 2 elevator single-layer operation modes and 2 elevator double-layer operation modes when each elevator carries passengers to 1 floor according to a preset contrast relation between the passenger flow mode and the elevator operation mode, and specifies that the No. 1 and No. 3 elevators select the single-layer operation mode and the No. 2 and No. 4 elevators select the double-layer operation mode; the passenger flow mode determined by the passenger flow mode determining module and the operation mode determined by the elevator operation mode selecting module are respectively transmitted to the elevator allocation module and are transmitted to the elevator operation process recording unit for storage.

The centralized ascending passenger flow mode determined by the passenger flow mode determining module and the single-layer operation modes of the elevators No. 1 and No. 3 and the double-layer operation modes of the elevators No. 2 and No. 4 determined by the elevator operation mode selecting module are sent to the elevator allocation module, and the elevator allocation module obtains the allocation index corresponding to each elevator by using an elevator allocation index calculating unit: for an elevator in an idle state, the Δ T is calculated according to allocation index formula (3), and therefore, for elevators No. 1 and No. 2, Δ F is 0, and for elevators in a running state, Δ T is always greater than 0, calculated according to allocation index formulae (1) and (2).

The allocation index calculation unit sends the allocation indexes corresponding to the 4 elevators to the allocation decision unit, the minimum value of the allocation indexes is 0, the number of the elevators with the minimum value of 0 is 2, namely the number of the elevators is more than 1, the minimum value of the allocation indexes is equal to 0, and the No. 1 and No. 2 elevators are in an idle state, so that the system preferentially allocates the single-layer pre-taking elevator information to the No. 1 elevator and allocates the double-layer pre-taking elevator information to the No. 2 elevator; meanwhile, the information execution progress variable is marked as a state that information is allocated to the elevator but the elevator does not reach a target floor, and the numerical value is marked as 1; the elevator allocation module sends the information execution process recording unit to the pre-taking elevator number prompting unit to prompt passengers with single-layer elevator destination floors to take the elevator No. 1 and passengers with double-layer elevator destination floors to take the elevator No. 2, and sends the pre-taking elevator number to the elevator operation control module.

The elevator operation control module firstly controls the elevator to carry passengers according to the single-layer operation of the No. 1 elevator from the elevator distribution module and the double-layer operation of the No. 2 elevator; when the No. 3 and No. 4 elevators reach the layer 1, the No. 3 elevator single-layer operation is converted, and the No. 4 elevator double-layer operation is converted; the elevator operation control module is used for acquiring elevator operation information through the sensor module in the process of controlling the elevator to operate, and continuously transmitting the information to the information execution process recording unit, the elevator operation process recording unit and the elevator arrival time prediction module respectively; the information of the elevator running in the elevator running process recording unit comprises the floor where the elevator is located, the number of people in the elevator, the total weight of the elevator and the running direction of the elevator; the information of the elevator operation in the elevator arrival time prediction module is an estimated stop floor of the elevator; wherein, the information of the floor that the elevator is located is gathered to the leveling sensor, the information of the number of people in the elevator is gathered to the count sensor, weighing sensor gathers the information of the total weight of elevator.

The recording process of the information execution process recording unit comprises the following steps: after the pre-taking elevator reaches the floor where the passenger is located, the elevator operation control module records the boarding time of the passenger and transmits the boarding time to the information execution process recording unit; when the elevator reaches the passenger destination floor, the elevator operation control module records the passenger departure time and transmits the passenger departure time to the information execution process recording unit; the information execution progress variable is marked as an information execution completion state, and the numerical value is marked as 2; when the number of people taking the elevator in advance exceeds 4, which causes that part of passengers can not climb the elevator, the elevator operation control module marks that all the elevator variables are 0, and the information execution process recording unit needs to reconstruct the information of taking the elevator in advance for the passengers who do not climb the elevator.

The elevator arrival time prediction module obtains the estimated arrival time of the elevator according to the ratio of the absolute value difference between the floor where the elevator is located and the estimated stop floor of the elevator to the operation speed of the elevator, and sends the estimated arrival time of the elevator to the elevator operation process recording unit; the elevator running process recording unit sends the floor where the elevator is located, the estimated stopping floor of the elevator, the estimated arrival time of the elevator and the running direction of the elevator to the elevator running state monitoring unit; wherein the maximum speed of the elevator running at one floor is 0.7m/s, and the maximum speed of the elevator running at more than one floor is 2 m/s.

The elevator operation mode optimization module calculates the average value of each passenger elevator-leaving time minus the passenger elevator-boarding time to obtain the average elevator-taking time based on all information stored by the elevator operation process recording unit, calculates the average value of each passenger elevator-boarding time minus the information generation time to obtain the average elevator waiting time, calculates the ratio of the number of people in the elevator to the number of people that can be accommodated by the elevator to obtain the crowdedness degree of the elevator, and calculates the product of the total weight of the elevator and the height of each floor of the elevator to obtain the energy consumption of the elevator; wherein the height of each layer of elevator is 2.5 m.

Table 1 shows evaluation indexes of 4 elevators in different modes in the 1-floor centralized ascending passenger flow mode, and it can be seen from the table that the average elevator riding time, the average elevator waiting time, the elevator crowding degree and the elevator energy consumption of a composite elevator operation mode formed by 2 single-double-floor operation modes and 2 double-floor operation modes are minimum, and the elevator operation efficiency is highest.

Table 1 evaluation indexes of 4 elevators in different modes when the group elevator intelligent control system of the present invention is in the centralized up-going passenger flow mode

The optimal operation mode of the elevator is output to a composite elevator operation mode formed by 2 single-double layer operation modes and 2 double layer operation modes according to the principle that the elevator evaluation index is smaller and the elevator operation mode is optimal, is consistent with the preset contrast relation between the passenger flow mode and the elevator operation mode, and is transmitted to an elevator operation mode selection module.

The above description is an embodiment of the present invention, and the present invention should not be limited to the disclosure of the embodiment and the drawings. It is intended to cover all equivalents and modifications that fall within the scope of the invention, without departing from the scope of the invention.

Claims

1. An intelligent control system of group elevator which characterized in that: the system comprises a mobile phone client, a database, a passenger flow mode determination module, an elevator operation mode selection module, an elevator arrival time prediction module, an elevator allocation module, an elevator operation control module, a sensor module and an elevator operation mode optimization module;

the elevator connected with the intelligent control system comprises but is not limited to a car unit and a power system;

the passenger flow mode type classification specifically includes:

when the elevator is in a running state and the elevator runs upwards due to the information of ascending elevator riding, the method is divided into the following two conditions: the situation is that when the information of taking the elevator in advance is the information of taking the elevator upwards, the floor where the passenger is located is higher than the floor where the elevator is located by more than two layers, the floor where the passenger is located is not higher than the expected stop floor of the elevator, and the distribution index delta T is calculated through the formula (1):

and IV, when the elevator is in a running state and the elevator runs downwards due to the descending elevator taking information, the following two conditions are adopted: the method comprises the following steps that when pre-taking elevator information is descending elevator taking information, the floor where a passenger is located is at least two layers lower than the floor where an elevator is located, the floor where the passenger is located is not lower than the predicted stopping floor of the elevator, and an allocation index delta T is calculated through a formula (1); when the pre-taking information is descending taking information, the elevator descends to the estimated stopping floor of the elevator from the floor higher than the estimated stopping floor of the elevator, the floor where the passenger is located is the same as the estimated stopping floor of the elevator, and the distribution index delta T is calculated through a formula (2);

wherein index Δ F ═ F_current-f_start|；

if the number of the elevators corresponding to the minimum value of the allocation index is greater than 1, the elevators to be allocated by the elevator taking information need to be decided according to whether the minimum value of the allocation index is zero or not and the motion states of the elevators; when the minimum value of the distribution index is zero, the minimum value of the distribution index cannot be zero when the elevator is in the running state, so that the elevator in the running state is not considered; when the minimum values of the elevator allocation indexes in the stopping state and the idle state are all zero, the floor where the elevator is located is the same as the floor where the allocated passenger is located; because the elevator in the stop state is in the state that the door is opened to allow passengers to get on and off the elevator, the passengers do not need to wait for directly entering the elevator, so that the elevator in the stop state is preferentially considered to receive the information of taking the elevator in advance; when only the minimum value of the elevator allocation indexes in the idle state is zero, allocating the pre-taking elevator information to the elevator in the idle state; for the condition that the minimum value of the allocation index is not zero, if the situation that the allocation decision indexes of the elevators in the running state, the stopping state and the idle state are the same as the minimum value occurs at the same time, in order to ensure that passengers can take the elevator, the priority selection sequence of elevator allocation is the idle state elevator, the running state elevator and the stopping state elevator; it is worth noting that when a plurality of elevators in the same state meet the above conditions at the same time, the system preferentially allocates the pre-taking information to the elevator with smaller number;

after the pre-taking elevator reaches the floor where the passenger is located, the elevator operation control module records the boarding time of the passenger and transmits the boarding time to the information execution process recording unit; when the elevator reaches the passenger destination floor, the elevator operation control module records the passenger departure time and transmits the passenger departure time to the information execution process recording unit; the information execution progress variable is marked as an 'information execution completion' state; when the phenomenon that part of passengers cannot climb the elevator due to the limitation of the number of people accommodated by the elevator occurs, the elevator operation control module marks that all the climbing variables are 0, and the information execution process recording unit needs to reconstruct the pre-boarding information for the passengers who do not climb the elevator;

2. The intelligent control system of group elevators according to claim 1, wherein: the information input unit can input the information of the elevator information to be taken by the elevator information pre-taking operation unit, and the function of submitting, canceling and changing in unit time can only be used once.

3. The intelligent control system of group elevators according to claim 1, wherein: when the passengers are in emergency, the emergency mode calling unit directly calls the emergency running information of the elevator, so that the passengers can take the elevator more quickly and can only call the elevator once in unit time.

4. The intelligent control system of group elevators according to claim 1, wherein: the information transmission unit communicates with the information execution process recording unit in the database through a wireless network, Bluetooth or NFC technology.

5. The intelligent control system of group elevators according to claim 1, wherein: the pre-riding elevator number prompt unit in the mobile phone client displays information from the information execution process recording unit and prompts the number of the elevator to be ridden by the passenger.

6. The intelligent control system of group elevators according to claim 1, wherein: the elevator running state monitoring unit in the mobile phone client displays information from the elevator running process recording unit, wherein the information comprises the floor where the elevator is located, the estimated stop floor of the elevator, the estimated arrival time of the elevator and the running direction of the elevator.

7. The intelligent control system of group elevators according to claim 1, wherein: the information recorded by the information execution process recording unit in the database comprises the floor where the passenger is located, the passenger destination floor, the number of passengers taking the elevator, the information generation time, the number of the elevator to which the information is allocated, the time for which the information is allocated to the elevator, the boarding time of the passenger, the information execution progress and whether all elevators are landed.

8. The intelligent control system of group elevators according to claim 1, wherein: the information recorded by the elevator operation process recording unit in the database comprises the floor where the elevator is located, the estimated stop floor of the elevator, the estimated arrival time of the elevator, the operation direction of the elevator, the number of people in the elevator and the total weight of the elevator.

9. The intelligent control system of group elevators according to claim 1, wherein: the elevator operation control module can control the elevator to start and stop, open and close the door and acquire the information of the elevator operation through the sensor module.