CN114194960A - Method and system for positioning terminal in elevator based on low-power-consumption Bluetooth technology - Google Patents
Method and system for positioning terminal in elevator based on low-power-consumption Bluetooth technology Download PDFInfo
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- CN114194960A CN114194960A CN202010991916.3A CN202010991916A CN114194960A CN 114194960 A CN114194960 A CN 114194960A CN 202010991916 A CN202010991916 A CN 202010991916A CN 114194960 A CN114194960 A CN 114194960A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
- B66B1/14—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. push-buttons, for indirect control of movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/468—Call registering systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/40—Details of the change of control mode
- B66B2201/46—Switches or switchgear
- B66B2201/4607—Call registering systems
- B66B2201/4653—Call registering systems wherein the call is registered using portable devices
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a method for positioning a terminal in an elevator based on a low-power Bluetooth technology, which comprises the following steps: the method comprises the steps that a plurality of Bluetooth signal capture nodes acquire Bluetooth RSSI values of users and transmit the Bluetooth RSSI values to a data processor; the data processor calculates the RSSI value strength change rule according to the Bluetooth RSSI value; the data processor judges the position relation between the user and the elevator according to the RSSI value strength change rule; and the data processor determines whether to send an elevator calling command to an elevator control system according to the position relation between the user and the elevator. The terminal positioning function of the elevator is realized by the externally distributed Bluetooth signal capturing nodes on the basis of the great popularization rate of Bluetooth in the market under the condition that additional equipment carried by a user is not added. The elevator control system has the greatest characteristic that the traditional elevator key type control mode is replaced, and contactless elevator control is used instead, so that the use experience of a user on the elevator is greatly improved.
Description
Technical Field
The invention belongs to the technical field of intelligent building elevator equipment, and particularly relates to an in-elevator terminal positioning method and system based on a low-power-consumption Bluetooth technology.
Background
With the rapid development of science and technology, elevators become indispensable equipment in the building industry. The traditional method for reserving the elevator by the user is to press an up-down button to call the elevator on an elevator control panel of the floor where the user is located, so that the user has to wait near the door of the elevator when taking the elevator, and if the user misses the elevator in the current time due to being busy with other things in the waiting period, the user has to call again to wait for the next elevator. Particularly for high-rise buildings, the waiting time of the user is longer during the elevator use peak period. If a positioning system is used for replacing the traditional elevator key reservation, the user experience can be greatly improved.
In an indoor positioning system, the key is the selected sensor types (such as WIFI, RFID, infrared, ultrasonic, Bluetooth and UWB) and the positioning algorithm, and the measurement precision and the measurement range are key parameters influencing indoor positioning. The following types of positioning technologies are common in the market:
WIFI positioning technology
The advantages are that: the technology is mature and has more applications, and the judgment is generally carried out by adopting a 'neighbor method';
the disadvantages are as follows: the influence of the surrounding environment is larger, and the precision is lower. In order to make a point accurate, WiFi fingerprint collection is required, and the signal intensity of a huge number of determined position points is recorded in advance.
RFID location techniques
The advantages are that: the method can obtain centimeter-level positioning accuracy information within a few milliseconds, has a large transmission range and low cost, and can determine the position by adopting a neighbor method, a multi-edge positioning method, received signal strength and other methods;
the disadvantages are as follows: the object to be measured needs to carry the RFID label, and a plurality of base stations need to be arranged in the corresponding area.
Infrared technology
The advantages are that: the high precision is easy to realize in an open room, and the passive positioning of the infrared radiation source can be realized;
the disadvantages are as follows: the infrared ray is easily sheltered from by the barrier, and transmission distance is also not long, so a large amount of densely deployed sensors are needed, and higher hardware and construction cost are caused.
Bluetooth positioning technology
The advantages are that: the method has the advantages of power saving, simple realization, wide popularization rate and close relation between positioning precision and the laying density and the transmitting power of the Bluetooth beacon.
The scheme to elevator terminal location is mainly that the operation condition of control elevator system promptly fixes a position the main part and is the elevator box at present, monitors elevator operation itself through judging the relative position with the elevartor shaft, has neglected the location to the elevator user, and then realizes elevator reservation control etc..
Therefore, a solution to the technical problem of elevator reservation is needed.
Disclosure of Invention
In order to solve the problems, the invention provides an in-elevator terminal positioning method based on a low-power Bluetooth technology, which comprises the following steps:
the method comprises the steps that a plurality of Bluetooth signal capture nodes acquire Bluetooth RSSI values of users and transmit the Bluetooth RSSI values to a data processor;
the data processor calculates the RSSI value strength change rule according to the Bluetooth RSSI value;
the data processor judges the position relation between the user and the elevator according to the RSSI value strength change rule;
and the data processor determines whether to send an elevator calling command to an elevator control system according to the position relation between the user and the elevator.
Further, the data processor determines whether to send an elevator call command to an elevator control system according to the position relationship between the user and the elevator, specifically:
if the user moves towards the elevator and the position relation between the user and the elevator accords with the set value of the program, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is;
if the user moves towards the elevator, but the position relation between the user and the elevator does not accord with the set value of the program, the data processor does not send the command of calling the elevator to the elevator control system;
if the user does not move in the direction of the elevator, the data processor will not send a call to the elevator control system.
Further, the elevator automatically stops to the floor where the user is located, specifically:
the data processor captures node position information according to the Bluetooth signal which sends the Bluetooth RSSI value, and acquires the floor information of the user;
and the elevator control system controls the elevator to automatically stop to the floor where the user is located according to the floor information where the user is located.
Further, the method further comprises:
the data processor judges the position relation between the user and the building according to the RSSI value intensity change rule;
and the data processor determines whether to send an elevator calling command to an elevator control system in advance according to the position relation between the user and the building.
Further, the data processor determines whether to send an elevator call command to an elevator control system in advance according to the position relationship between the user and the building, specifically:
if the user enters the building from the outside, an elevator calling command is sent to an elevator control system in advance, and the elevator is controlled to stop to the floor where the user is located in advance;
if the user goes out of the building, the elevator calling command is not sent to the elevator control system.
The invention also provides a terminal positioning system in the elevator based on the low power consumption Bluetooth technology, which comprises a plurality of Bluetooth signal capturing nodes, a data processor and an elevator control system, wherein:
the Bluetooth signal capturing node is used for acquiring a Bluetooth RSSI value of a user and transmitting the Bluetooth RSSI value to the data processor;
the data processor is used for calculating an RSSI value strength change rule according to the Bluetooth RSSI value, judging the position relationship between a user and the elevator according to the RSSI value strength change rule, and finally determining whether to send an elevator calling command to the elevator control system according to the position relationship between the user and the elevator;
and the elevator control system is used for controlling the stopping of the elevator.
Further, the determining whether to send an elevator call command to an elevator control system according to the position relationship between the user and the elevator specifically includes:
if the user moves towards the elevator and the position relation between the user and the elevator accords with the set value of the program, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is;
if the user moves towards the elevator, but the position relation between the user and the elevator does not accord with the set value of the program, the data processor does not send the command of calling the elevator to the elevator control system;
if the user does not move in the direction of the elevator, the data processor will not send a call to the elevator control system.
Further, the elevator automatically stops to the floor where the user is located, specifically:
the data processor captures node position information according to the Bluetooth signal which sends the Bluetooth RSSI value, and acquires the floor information of the user;
and the elevator control system controls the elevator to automatically stop to the floor where the user is located according to the floor information where the user is located.
Further, the data processor also judges the position relation between the user and the building according to the RSSI value intensity change rule, and then determines whether to send an elevator calling command to an elevator control system in advance according to the position relation between the user and the building.
Further, the determining whether to send an elevator call command to an elevator control system in advance according to the position relationship between the user and the building specifically includes:
if the user enters the building from the outside, an elevator calling command is sent to an elevator control system in advance, and the elevator is controlled to stop to the floor where the user is located in advance;
if the user goes out of the building, the elevator calling command is not sent to the elevator control system.
The terminal positioning function of the elevator is realized by the externally distributed Bluetooth signal capturing nodes on the basis of the great popularization rate of Bluetooth in the market under the condition that additional equipment carried by a user is not added. Its biggest characteristics are to replace traditional elevator button control mode, change into contactless elevator control, namely the user only need keep the bluetooth to open and can carry out the elevator call, do not need to manually click elevator control panel, have greatly promoted the user and experienced to the use of elevator.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 shows a flow chart of a terminal positioning method in an elevator based on bluetooth low energy technology according to an embodiment of the present invention;
fig. 2 shows a structure diagram of a terminal positioning system in an elevator based on bluetooth low energy technology according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of a bluetooth signal capture node and elevator position relationship in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an elevator terminal positioning method based on a low-power-consumption Bluetooth technology, exemplarily, fig. 1 shows a flow chart of the elevator terminal positioning method based on the low-power-consumption Bluetooth technology, as shown in fig. 1, the method comprises the following steps:
the method comprises the steps that a plurality of Bluetooth signal capture nodes acquire Bluetooth RSSI values of users and transmit the Bluetooth RSSI values to a data processor;
the data processor calculates the RSSI value strength change rule according to the Bluetooth RSSI value;
the data processor judges the position relation between the user and the elevator according to the RSSI value strength change rule;
the data processor determines whether to send an elevator calling command to an elevator control system according to the position relation between the user and the elevator, and specifically comprises the following steps:
if the user moves towards the elevator and the position relation between the user and the elevator accords with the set value of the program, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is;
if the user moves towards the elevator, but the position relation between the user and the elevator does not accord with the set value of the program, the data processor does not send the command of calling the elevator to the elevator control system;
if the user does not move in the direction of the elevator, the data processor will not send a call to the elevator control system.
Wherein, the elevator is automatic to be berthhed to the floor that the user is located, specifically is:
the data processor captures node position information according to the Bluetooth signal which sends the Bluetooth RSSI value, and acquires the floor information of the user;
and the elevator control system controls the elevator to automatically stop to the floor where the user is located according to the floor information where the user is located.
The method further comprises the following steps:
the data processor judges the position relation between the user and the building according to the RSSI value intensity change rule;
the data processor determines whether to send an elevator calling command to an elevator control system in advance according to the position relation between the user and the building, and the method specifically comprises the following steps:
if the user enters the building from the outside, an elevator calling command is sent to an elevator control system in advance, and the elevator is controlled to stop to the floor where the user is located in advance;
if the user goes out of the building, the elevator calling command is not sent to the elevator control system.
The invention also provides an in-elevator terminal positioning system based on the low power consumption Bluetooth technology, exemplarily shown in fig. 2, the system comprises a plurality of Bluetooth signal capturing nodes, a data processor and an elevator control system, the Bluetooth signal capturing nodes detect Bluetooth RSSI values sent by a user mobile phone and transmit the Bluetooth RSSI values back to the data processor, the data processor calculates RSSI value strength change rules according to the Bluetooth RSSI values, then judges the position relationship between a user and an elevator according to the RSSI value strength change rules, and finally determines whether to send an elevator call command to the elevator control system according to the position relationship between the user and the elevator. The Bluetooth signal capturing node is connected with the data processor through a 485 communication bus, and the data processor is connected to the elevator control system through a wired network. Wherein, a plurality of bluetooth signal capture nodes are arranged around the elevator, as shown in fig. 3, in the embodiment of the present invention, four bluetooth signal capture nodes are taken as an example for illustration, but not limited to this.
When the embodiment of the invention is in operation, the Bluetooth Signal capture nodes arranged around the elevator are utilized to actively obtain the Bluetooth RSSI (Received Signal Strength Indication) value of the user mobile phone, and as the Bluetooth Signal of the user mobile phone is captured by more and more Bluetooth Signal capture nodes, the data processor can learn the motion track of the user by calculating the RSSI intensity change rule, thereby judging the position relationship between the user and the elevator. When the position relation between the user and the elevator accords with certain characteristics set by a program, for example, the user moves towards the elevator and the distance is less than 3 meters, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is located, so that the control mode that the user needs to click to call the elevator according to an elevator control panel originally is replaced. If the user enters the building from the open air, the data processor informs the elevator control system to call the elevator and sets the elevator to stop to the floor where the user is located in advance according to the RSSI intensity change rule, so that the contactless convenient experience is achieved.
The embodiment of the invention realizes the terminal positioning function of the elevator by means of the externally distributed Bluetooth signal capture nodes without adding extra equipment carried by a user on the basis of the great popularization rate of Bluetooth in the market. Its biggest characteristics are to replace traditional elevator button control mode, change into contactless elevator control, namely the user only need keep the bluetooth to open and can carry out the elevator call, do not need to manually click elevator control panel, have greatly promoted the user and experienced to the use of elevator.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A terminal positioning method in an elevator based on a low power consumption Bluetooth technology is characterized by comprising the following steps:
the method comprises the steps that a plurality of Bluetooth signal capture nodes acquire Bluetooth RSSI values of users and transmit the Bluetooth RSSI values to a data processor;
the data processor calculates the RSSI value strength change rule according to the Bluetooth RSSI value;
the data processor judges the position relation between the user and the elevator according to the RSSI value strength change rule;
and the data processor determines whether to send an elevator calling command to an elevator control system according to the position relation between the user and the elevator.
2. The method for positioning the terminal in the elevator based on the bluetooth low energy technology according to claim 1, wherein the data processor determines whether to send an elevator call command to an elevator control system according to the position relationship between the user and the elevator, and specifically comprises:
if the user moves towards the elevator and the position relation between the user and the elevator accords with the set value of the program, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is;
if the user moves towards the elevator, but the position relation between the user and the elevator does not accord with the set value of the program, the data processor does not send the command of calling the elevator to the elevator control system;
if the user does not move in the direction of the elevator, the data processor will not send a call to the elevator control system.
3. The method for positioning the terminal in the elevator based on the Bluetooth low energy technology as claimed in claim 2, wherein the elevator automatically stops at the floor where the user is located, specifically:
the data processor captures node position information according to the Bluetooth signal which sends the Bluetooth RSSI value, and acquires the floor information of the user;
and the elevator control system controls the elevator to automatically stop to the floor where the user is located according to the floor information where the user is located.
4. The method of claim 1 for locating a terminal in an elevator based on bluetooth low energy technology, the method further comprising:
the data processor judges the position relation between the user and the building according to the RSSI value intensity change rule;
and the data processor determines whether to send an elevator calling command to an elevator control system in advance according to the position relation between the user and the building.
5. The method as claimed in claim 4, wherein the data processor determines whether to send an elevator call command to an elevator control system in advance according to the position relationship between the user and the building, and specifically comprises:
if the user enters the building from the outside, an elevator calling command is sent to an elevator control system in advance, and the elevator is controlled to stop to the floor where the user is located in advance;
if the user goes out of the building, the elevator calling command is not sent to the elevator control system.
6. An in-elevator terminal positioning system based on bluetooth low energy technology, characterized in that the system comprises a plurality of bluetooth signal capture nodes, a data processor and an elevator control system, wherein:
the Bluetooth signal capturing node is used for acquiring a Bluetooth RSSI value of a user and transmitting the Bluetooth RSSI value to the data processor;
the data processor is used for calculating an RSSI value strength change rule according to the Bluetooth RSSI value, judging the position relationship between a user and the elevator according to the RSSI value strength change rule, and finally determining whether to send an elevator calling command to the elevator control system according to the position relationship between the user and the elevator;
and the elevator control system is used for controlling the stopping of the elevator.
7. The system according to claim 6, wherein the determining whether to send an elevator call command to an elevator control system according to the position relationship between the user and the elevator is specifically:
if the user moves towards the elevator and the position relation between the user and the elevator accords with the set value of the program, the data processor sends a command for calling the elevator to an elevator control system, and the elevator automatically stops at the floor where the user is;
if the user moves towards the elevator, but the position relation between the user and the elevator does not accord with the set value of the program, the data processor does not send the command of calling the elevator to the elevator control system;
if the user does not move in the direction of the elevator, the data processor will not send a call to the elevator control system.
8. The system according to claim 7, wherein the elevator automatically stops to the floor where the user is located, specifically:
the data processor captures node position information according to the Bluetooth signal which sends the Bluetooth RSSI value, and acquires the floor information of the user;
and the elevator control system controls the elevator to automatically stop to the floor where the user is located according to the floor information where the user is located.
9. The system of claim 6, wherein the data processor further determines a location relationship between the user and the building according to the RSSI value intensity variation rule, and then determines whether to send an elevator call command to the elevator control system in advance according to the location relationship between the user and the building.
10. The system according to claim 9, wherein the determining whether to send an elevator call command to an elevator control system in advance according to the position relationship between the user and the building is specifically:
if the user enters the building from the outside, an elevator calling command is sent to an elevator control system in advance, and the elevator is controlled to stop to the floor where the user is located in advance;
if the user goes out of the building, the elevator calling command is not sent to the elevator control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010991916.3A CN114194960A (en) | 2020-09-18 | 2020-09-18 | Method and system for positioning terminal in elevator based on low-power-consumption Bluetooth technology |
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| CN202010991916.3A CN114194960A (en) | 2020-09-18 | 2020-09-18 | Method and system for positioning terminal in elevator based on low-power-consumption Bluetooth technology |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427799A (en) * | 2000-05-01 | 2003-07-02 | 因温特奥股份公司 | Method for controlling elevator |
| CN101955093A (en) * | 2009-07-20 | 2011-01-26 | 杭州优迈科技有限公司 | Operation and control system of multi-base-station wireless remote elevator calling and control method |
| CN105293227A (en) * | 2015-12-02 | 2016-02-03 | 广州日滨科技发展有限公司 | Elevator calling system and method based on Bluetooth |
| CN207404634U (en) * | 2017-08-08 | 2018-05-25 | 苏州江南嘉捷电梯有限公司 | A kind of elevator wireless calls and stops automatically control system |
| CN109678017A (en) * | 2018-12-29 | 2019-04-26 | 重庆大学 | A kind of intelligent call method based on Bluetooth communication |
| US20190152741A1 (en) * | 2016-04-06 | 2019-05-23 | Lucien Wedzikowski | Mobile device state management and location determination |
-
2020
- 2020-09-18 CN CN202010991916.3A patent/CN114194960A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427799A (en) * | 2000-05-01 | 2003-07-02 | 因温特奥股份公司 | Method for controlling elevator |
| CN101955093A (en) * | 2009-07-20 | 2011-01-26 | 杭州优迈科技有限公司 | Operation and control system of multi-base-station wireless remote elevator calling and control method |
| CN105293227A (en) * | 2015-12-02 | 2016-02-03 | 广州日滨科技发展有限公司 | Elevator calling system and method based on Bluetooth |
| US20190152741A1 (en) * | 2016-04-06 | 2019-05-23 | Lucien Wedzikowski | Mobile device state management and location determination |
| CN207404634U (en) * | 2017-08-08 | 2018-05-25 | 苏州江南嘉捷电梯有限公司 | A kind of elevator wireless calls and stops automatically control system |
| CN109678017A (en) * | 2018-12-29 | 2019-04-26 | 重庆大学 | A kind of intelligent call method based on Bluetooth communication |
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