CN113012322A - Remote statistical system of pedestrian flow based on bluetooth AOA - Google Patents

Remote statistical system of pedestrian flow based on bluetooth AOA Download PDF

Info

Publication number
CN113012322A
CN113012322A CN202110193013.5A CN202110193013A CN113012322A CN 113012322 A CN113012322 A CN 113012322A CN 202110193013 A CN202110193013 A CN 202110193013A CN 113012322 A CN113012322 A CN 113012322A
Authority
CN
China
Prior art keywords
user
bluetooth
base station
smart phone
communication unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110193013.5A
Other languages
Chinese (zh)
Other versions
CN113012322B (en
Inventor
武建平
王会利
周晓燕
姚景祺
蔡志匡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yundian Electronic Technology Co ltd
Original Assignee
Jiangsu Yundian Electronic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Yundian Electronic Technology Co ltd filed Critical Jiangsu Yundian Electronic Technology Co ltd
Priority to CN202110193013.5A priority Critical patent/CN113012322B/en
Publication of CN113012322A publication Critical patent/CN113012322A/en
Application granted granted Critical
Publication of CN113012322B publication Critical patent/CN113012322B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/025Services making use of location information using location based information parameters
    • H04W4/026Services making use of location information using location based information parameters using orientation information, e.g. compass
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention discloses a remote people flow counting system based on Bluetooth AOA, which comprises: the system comprises a Bluetooth base station, a cloud service background and a smart phone user side; the bluetooth base station includes: the system comprises a power supply unit, a remote wireless communication unit, a Bluetooth wireless communication unit and an antenna array; the Bluetooth wireless communication unit acquires a Bluetooth ID of the smart phone as a user ID through a wireless scanning function; the antenna array is used for measuring an angle between the Bluetooth base station and the Bluetooth module of the smart phone so as to judge the in-out direction of a user, and meanwhile, the antenna array is matched with the Bluetooth wireless module to accurately measure the distance of a nearby smart phone; the smart phone utilizes the standard Bluetooth module to match with the base station for distance measurement and direction finding; the cloud service background comprises a database unit, a communication unit and an operation processing unit. The invention has low cost and convenient implementation; the method has the advantages of ensuring the validity and accuracy of the people flow statistics, low carbon, environmental protection and the like.

Description

Remote statistical system of pedestrian flow based on bluetooth AOA
Technical Field
The invention relates to the technical field of data statistics, in particular to a remote people flow statistics method based on Bluetooth AOA.
Background
With the rapid development of mobile internet of things, smart homes and sensor technologies, smart phones have become indispensable devices for people's daily trips and daily lives, and achievements of mobile internet of things scientific and technological development have also widely entered people's daily lives, bringing great convenience to people's daily lives, work and study, and influencing people's use habits. Various markets also develop intelligent and accurate marketing by means of the trend of the mobile internet of things, the pedestrian flow is very critical to stores and merchants, the mismatching of store addresses leads to poor management and irresponsible blood, and the problem that how to accurately and conveniently count the pedestrian flow becomes urgent needs to be solved.
Disclosure of Invention
The invention aims to provide a remote people flow counting system based on Bluetooth AOA (automatic optic inspection) to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a remote people flow statistical system based on Bluetooth AOA comprises: the system comprises a Bluetooth base station, a cloud service background and a smart phone user side;
wherein the Bluetooth base station comprises: the system comprises a core controller, a power supply unit, a remote wireless communication unit, a Bluetooth wireless communication unit and an antenna array;
the core controller is used for coordinating and controlling the working logic flow and power consumption optimization of other peripheral modules, particularly a low-power consumption control logic when a battery supplies power, and the endurance is improved;
the power supply unit provides power for the Bluetooth base station, and the remote wireless communication unit is used for completing data communication between the Bluetooth base station and the cloud service background;
the Bluetooth wireless communication unit acquires a Bluetooth ID of the smart phone as a user ID through a wireless scanning function;
the antenna array is used for measuring an angle between the Bluetooth base station and the Bluetooth module of the smart phone, so that the in-out direction of a user is judged, and meanwhile, the Bluetooth wireless module is matched for accurately measuring the distance of a nearby smart phone;
the smart phone utilizes the standard Bluetooth module to match with the base station for distance measurement and direction finding;
the cloud service background comprises a database unit, a communication unit and an operation processing unit;
the communication unit is used for accessing a public network and receiving user ID and timestamp information uploaded by a Bluetooth base station;
the operation processing unit is used for calculating and counting the retention time of the same user ID in the area, and filtering the user ID repeatedly going in and out of the area within a set period (such as within 24 hours);
the database unit is used for storing statistical data results.
The invention is further improved in that: the remote wireless communication unit is connected to the core controller through a serial interface and is responsible for transmitting information such as user ID acquired locally by the Bluetooth base station to the cloud service background according to a communication protocol; the Bluetooth wireless communication unit is connected with the core controller through a serial interface, and is matched with the antenna array to realize wireless communication of a Bluetooth module of the smart phone at the user side and acquire information such as user ID (identity) and the like; the antenna array is connected with the Bluetooth wireless communication unit and is communicated with the Bluetooth module of the smart phone at the user side to acquire the user ID and judge the movement direction of the user.
The invention is further improved in that: when a smart phone user approaches an entrance guard, firstly, the Bluetooth base station scans a user ID, and simultaneously, the distance between the user and the Bluetooth base station is accurately measured by means of an antenna array; when the measured distance is within the range of a preset threshold value of the system, the in-and-out direction of a user is further judged through the direction-finding function of the antenna array; next, if the user is in the entering direction, the bluetooth base station uploads the user ID and the entering timestamp information to a cloud service background, the cloud service background further calls a database to inquire whether the user ID has an entering record in the latest counting period, and if the user ID has the entering record, the user ID is directly regarded as an invalid user and is not counted; otherwise, if the entry record does not exist in the latest counting period, the cloud service background calls a database unit to record the user ID and the corresponding entry timestamp, and the people flow database is updated;
if the walking direction of the user is going out, the cloud service background inquires whether the same user ID exists in the user in the latest counting period, if not, the user is directly regarded as an invalid user, and counting is not carried out; if the same user ID exists, the cloud service background further calls a database to inquire whether the user has an outgoing record in the latest counting period, and if the user has the outgoing record, the user is directly regarded as an invalid user and is not counted; otherwise, the cloud service background inquires the recent historical entry time point of the user ID, further calls a cloud background operation processing module, counts the user residence time and updates a people flow database.
The method comprises the steps that a Bluetooth module is matched with the smart phone as a user side carrier, a Bluetooth base station is deployed at a key access opening needing to count the flow of people, the distance between a user and the access opening is judged by utilizing a Bluetooth AOA high-precision distance measurement function (the distance measurement precision is 0.1-1 m), and the access direction of the smart phone user is judged by utilizing a Bluetooth AOA high-precision angle measurement function (the angle measurement precision can reach within 2 degrees); the detention time of the user is counted by recording the entrance and exit timestamp information of the same user ID, so that the flow of people at the entrance and the exit of a key area and the detention time in the area are counted by a very convenient means, and a strong objective data support is provided for the establishment of a business and the site selection of a market.
The invention has the technical effects and advantages that:
(1) the Bluetooth function is matched by means of a highly popular smart phone standard, so that the cost is low and the implementation is convenient;
(2) according to the invention, people flow and detention duration statistics can be completed only by deploying a small number of Bluetooth base stations in a specific area or an entrance and exit, so that the cost is low, and the deployment and implementation are simple;
(3) the invention can process the user ID of the area which frequently comes and goes back and forth according to the set period (such as within 24 hours per day), thereby ensuring the validity and accuracy of the people flow statistics;
(4) the associated hardware Bluetooth hardware base station can be repeatedly utilized, can be deployed and used in other places for the second time after statistical analysis is completed, and is low-carbon and environment-friendly.
Drawings
FIG. 1 is a system framework diagram of the present invention;
FIG. 2 is a flow chart of the operation of the present invention;
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Fig. 1-2 show an embodiment of a remote people flow statistics system based on bluetooth AOA, including: the system comprises a Bluetooth base station, a cloud service background and a smart phone user side;
wherein the Bluetooth base station comprises: the system comprises a core controller, a power supply unit, a remote wireless communication unit, a Bluetooth wireless communication unit and an antenna array;
the core controller is used for coordinating and controlling the working logic flow and power consumption optimization of other peripheral modules, particularly a low-power consumption control logic when a battery supplies power, and the endurance is improved;
the power supply unit provides power for the Bluetooth base station, and the remote wireless communication unit is used for completing data communication between the Bluetooth base station and the cloud service background;
the Bluetooth wireless communication unit acquires a Bluetooth ID of the smart phone as a user ID through a wireless scanning function;
the antenna array is used for measuring an angle between the Bluetooth base station and the Bluetooth module of the smart phone, so that the in-out direction of a user is judged, and meanwhile, the Bluetooth wireless module is matched for accurately measuring the distance of a nearby smart phone;
the smart phone utilizes the standard Bluetooth module to match with the base station for distance measurement and direction finding;
the cloud service background comprises a database unit, a communication unit and an operation processing unit;
the communication unit is used for accessing a public network and receiving user ID and timestamp information uploaded by a Bluetooth base station;
the operation processing unit is used for calculating and counting the retention time of the same user ID in the area, and filtering the user ID repeatedly going in and out of the area within a set period (such as within 24 hours);
the database unit is used for storing statistical data results.
The remote wireless communication unit is connected to the core controller through a serial interface and is responsible for transmitting information such as user ID acquired locally by the Bluetooth base station to the cloud service background according to a communication protocol; the Bluetooth wireless communication unit is connected with the core controller through a serial interface, and is matched with the antenna array to realize wireless communication of a Bluetooth module of the smart phone at the user side and acquire information such as user ID (identity) and the like; the antenna array is connected with the Bluetooth wireless communication unit and is communicated with the Bluetooth module of the smart phone at the user side to acquire a user ID and judge the movement direction of the user;
when a smart phone user approaches an entrance guard, firstly, the Bluetooth base station scans a user ID, and simultaneously, the distance between the user and the Bluetooth base station is accurately measured by means of an antenna array; when the measured distance is within the range of a preset threshold value of the system, the in-and-out direction of a user is further judged through the direction-finding function of the antenna array; next, if the user is in the entering direction, the bluetooth base station uploads the user ID and the entering timestamp information to a cloud service background, the cloud service background further calls a database to inquire whether the user ID has an entering record in the latest counting period, and if the user ID has the entering record, the user ID is directly regarded as an invalid user and is not counted; otherwise, if the entry record does not exist in the latest counting period, the cloud service background calls a database unit to record the user ID and the corresponding entry timestamp, and the people flow database is updated;
if the walking direction of the user is going out, the cloud service background inquires whether the same user ID exists in the user in the latest counting period, if not, the user is directly regarded as an invalid user, and counting is not carried out; if the same user ID exists, the cloud service background further calls a database to inquire whether the user has an outgoing record in the latest counting period, and if the user has the outgoing record, the user is directly regarded as an invalid user and is not counted; otherwise, the cloud service background inquires the recent historical entry time point of the user ID, further calls a cloud background operation processing module, counts the user residence time and updates a people flow database. According to the method, by means of the Bluetooth module of the smart phone standard and the inherent property of one person and one machine, the access direction of a smart phone user is judged by deploying the Bluetooth base station at the entrance and exit of key areas such as store operation, market site selection, store sales promotion and the like and utilizing the high-precision ranging and direction finding functions of Bluetooth AOA; by recording the same user ID access time point, the residence time of the user in the area is counted, and finally accurate statistical analysis is carried out on the flow of people in a specific area, an entrance and an exit and the residence time in the area, so that accurate and objective data support is provided for store, merchant and supermarket sales promotion, and the method is used as an effective means for predicting the profit of stores.
The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the implementation of alternative equivalent substitutions and additions of steps, the selection of specific modes, etc., are within the scope and disclosure of the present invention.
The present invention is not limited to the above embodiments, and all the ways of achieving the objects of the present invention by using the structure and the method similar to the present invention are within the protection scope of the present invention.

Claims (3)

1. A remote people flow statistical system based on Bluetooth AOA (automatic optic inspection) is characterized by comprising: the system comprises a Bluetooth base station, a cloud service background and a smart phone user side;
wherein the Bluetooth base station comprises: the system comprises a core controller, a power supply unit, a remote wireless communication unit, a Bluetooth wireless communication unit and an antenna array;
the core controller is used for coordinating and controlling the working logic flow and power consumption optimization of other peripheral modules, particularly a low-power consumption control logic when a battery supplies power, and the endurance is improved;
the power supply unit provides power for the Bluetooth base station, and the remote wireless communication unit is used for completing data communication between the Bluetooth base station and the cloud service background;
the Bluetooth wireless communication unit acquires a Bluetooth ID of the smart phone as a user ID through a wireless scanning function;
the antenna array is used for measuring an angle between the Bluetooth base station and the Bluetooth module of the smart phone, so that the in-out direction of a user is judged, and meanwhile, the Bluetooth wireless module is matched for accurately measuring the distance of a nearby smart phone;
the smart phone utilizes the standard Bluetooth module to match with the base station for distance measurement and direction finding;
the cloud service background comprises a database unit, a communication unit and an operation processing unit;
the communication unit is used for accessing a public network and receiving user ID and timestamp information uploaded by a Bluetooth base station;
the operation processing unit is used for calculating and counting the retention time of the same user ID in the area and filtering the user ID repeatedly entering and exiting the area in a set period;
the database unit is used for storing statistical data results.
2. The Bluetooth AOA-based people flow remote statistic system according to claim 1, characterized in that: the remote wireless communication unit is connected to the core controller through a serial interface and is responsible for transmitting information such as user ID acquired locally by the Bluetooth base station to the cloud service background according to a communication protocol; the Bluetooth wireless communication unit is connected with the core controller through a serial interface and is matched with the antenna array to realize wireless communication of a Bluetooth module of the smart phone at the user side and acquire user ID information; the antenna array is connected with the Bluetooth wireless communication unit and is communicated with the Bluetooth module of the smart phone at the user side to acquire the user ID and judge the movement direction of the user.
3. The remote people flow rate statistics system based on Bluetooth AOA as claimed in claim 1, wherein when a smart phone user approaches an entrance/exit, firstly, the Bluetooth base station scans user ID and simultaneously measures the distance between the user and the Bluetooth base station accurately by means of antenna array; when the measured distance is within the range of a preset threshold value of the system, the in-and-out direction of a user is further judged through the direction-finding function of the antenna array; next, if the user is in the entering direction, the bluetooth base station uploads the user ID and the entering timestamp information to a cloud service background, the cloud service background further calls a database to inquire whether the user ID has an entering record in the latest counting period, and if the user ID has the entering record, the user ID is directly regarded as an invalid user and is not counted; otherwise, if the entry record does not exist in the latest counting period, the cloud service background calls a database unit to record the user ID and the corresponding entry timestamp, and the people flow database is updated;
if the walking direction of the user is going out, the cloud service background inquires whether the same user ID exists in the user in the latest counting period, if not, the user is directly regarded as an invalid user, and counting is not carried out; if the same user ID exists, the cloud service background further calls a database to inquire whether the user has an outgoing record in the latest counting period, and if the user has the outgoing record, the user is directly regarded as an invalid user and is not counted; otherwise, the cloud service background inquires the recent historical entry time point of the user ID, further calls a cloud background operation processing module, counts the user residence time and updates a people flow database.
CN202110193013.5A 2021-02-20 2021-02-20 People flow remote statistics system based on bluetooth AOA Active CN113012322B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110193013.5A CN113012322B (en) 2021-02-20 2021-02-20 People flow remote statistics system based on bluetooth AOA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110193013.5A CN113012322B (en) 2021-02-20 2021-02-20 People flow remote statistics system based on bluetooth AOA

Publications (2)

Publication Number Publication Date
CN113012322A true CN113012322A (en) 2021-06-22
CN113012322B CN113012322B (en) 2023-09-29

Family

ID=76404314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110193013.5A Active CN113012322B (en) 2021-02-20 2021-02-20 People flow remote statistics system based on bluetooth AOA

Country Status (1)

Country Link
CN (1) CN113012322B (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106027678A (en) * 2016-07-13 2016-10-12 桂林电子科技大学 Scenic region tourist flow real-time statistics and tourist flow over-limit automatic early warning system and method
CN106028391A (en) * 2016-05-19 2016-10-12 腾讯科技(深圳)有限公司 Pedestrian flow statistics method and device
CN106303953A (en) * 2016-07-29 2017-01-04 上海斐讯数据通信技术有限公司 A kind of people flow rate statistical system and method
CN106295510A (en) * 2016-07-26 2017-01-04 南京邮电大学 A kind of people flow rate statistical method and system of multisensor cooperation
CN106934887A (en) * 2017-02-27 2017-07-07 南京聚鲲物联网科技有限公司 The smart bluetooth entrance guard device and control method of a kind of integrated position judgment and the direction of motion
CN106951989A (en) * 2017-03-17 2017-07-14 于平 Visitor management system based on iBeacon information pushing functions
CN110868536A (en) * 2019-11-05 2020-03-06 珠海格力电器股份有限公司 Access control system control method and access control system
CN210955284U (en) * 2020-02-27 2020-07-07 深圳方圆宝信息科技服务有限公司 Passenger flow volume statistical system
CN111970644A (en) * 2020-08-31 2020-11-20 深圳市紫光新能源技术有限公司 Bluetooth beacon base station, base station group and transceiving network for mine positioning system
CN112347909A (en) * 2020-11-05 2021-02-09 上海蜂雀网络科技有限公司 Retail store entrance and exit passenger flow statistical method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106028391A (en) * 2016-05-19 2016-10-12 腾讯科技(深圳)有限公司 Pedestrian flow statistics method and device
CN106027678A (en) * 2016-07-13 2016-10-12 桂林电子科技大学 Scenic region tourist flow real-time statistics and tourist flow over-limit automatic early warning system and method
CN106295510A (en) * 2016-07-26 2017-01-04 南京邮电大学 A kind of people flow rate statistical method and system of multisensor cooperation
CN106303953A (en) * 2016-07-29 2017-01-04 上海斐讯数据通信技术有限公司 A kind of people flow rate statistical system and method
CN106934887A (en) * 2017-02-27 2017-07-07 南京聚鲲物联网科技有限公司 The smart bluetooth entrance guard device and control method of a kind of integrated position judgment and the direction of motion
CN106951989A (en) * 2017-03-17 2017-07-14 于平 Visitor management system based on iBeacon information pushing functions
CN110868536A (en) * 2019-11-05 2020-03-06 珠海格力电器股份有限公司 Access control system control method and access control system
CN210955284U (en) * 2020-02-27 2020-07-07 深圳方圆宝信息科技服务有限公司 Passenger flow volume statistical system
CN111970644A (en) * 2020-08-31 2020-11-20 深圳市紫光新能源技术有限公司 Bluetooth beacon base station, base station group and transceiving network for mine positioning system
CN112347909A (en) * 2020-11-05 2021-02-09 上海蜂雀网络科技有限公司 Retail store entrance and exit passenger flow statistical method

Also Published As

Publication number Publication date
CN113012322B (en) 2023-09-29

Similar Documents

Publication Publication Date Title
CN111919476B (en) Indoor positioning method, server and positioning system
CN1281046C (en) Position related data collection
CN108182414B (en) Traffic detection method, device and system
CN109151168B (en) Switching method and device of riding codes, mobile terminal and readable storage medium
US20180061145A1 (en) Parking space management system and method
CN102006550B (en) Power saving system and method for mobile computing device
CN103389488B (en) A kind of multiple light courcess indoor positioning apparatus and method based on light intensity
CN108076429A (en) Localization method, device, storage medium and mobile terminal
CN102915575A (en) Electronic patrol monitoring device and system
CN109975758A (en) Wi-Fi blue tooth integrated base station location system
CN102088365B (en) Energy consumption collecting and energy-saving metering system of communication room
CN105530677A (en) Ultra-dense networking virtual cell switching method based on user positioning
CN104376340A (en) Clock punching method and device
CN103561465A (en) Multi-base-station positioning method based on probability fingerprints
CN108093131A (en) Arrival reminding method, apparatus, storage medium and mobile terminal
CN105933862A (en) Mobile terminal and positioning method and device thereof
Rodrigues et al. Opportunistic mobile crowdsensing for gathering mobility information: Lessons learned
CN104703127B (en) Wirelessly it is automatically signing in method and its system
CN203192046U (en) Electronic patrol monitoring device and system
CN113012322A (en) Remote statistical system of pedestrian flow based on bluetooth AOA
CN108040320A (en) Control method, device, storage medium and the mobile terminal of GNSS positioning
CN103440712B (en) A kind of parking lot electronic toll collection timer calibrating installation and method
CN110912973A (en) Mobile power supply information reminding method
CN107835304A (en) Control method, apparatus, mobile terminal and the storage medium of mobile terminal
CN112991568B (en) Attendance data acquisition method and system based on Beidou positioning

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant