CN111464948A - Passenger flow detection method and system - Google Patents
Passenger flow detection method and system Download PDFInfo
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- CN111464948A CN111464948A CN202010181931.1A CN202010181931A CN111464948A CN 111464948 A CN111464948 A CN 111464948A CN 202010181931 A CN202010181931 A CN 202010181931A CN 111464948 A CN111464948 A CN 111464948A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
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Abstract
The embodiment of the disclosure discloses a passenger flow detection method and system. The passenger flow detection method comprises the following steps: acquiring information from a wireless AP, wherein the information comprises an MAC address, a timestamp and signal strength of a terminal; obtaining passenger flow volume based on the MAC address and the timestamp in the information; and determining the position of the terminal based on the acquired signal strengths from the plurality of wireless APs. The method comprises the steps of obtaining the MAC address, the timestamp and the signal strength of a terminal through a wireless AP, detecting the passenger flow by using the MAC address and the timestamp of the terminal, and determining the position of the terminal by using the signal strengths of a plurality of wireless APs on the terminal. Therefore, the purpose of improving the precision when multiple persons enter and exit simultaneously or multiple persons cross enter and exit is achieved, and the specific positions of the persons can be detected in real time.
Description
Technical Field
The disclosure belongs to the technical field of passenger flow detection, and more particularly relates to a passenger flow detection method and system.
Background
In the prior art, passenger flow statistics mainly comprises a manual mode, an infrared mode and a thermal imaging mode. The manual method has the disadvantages of high reliability in short time, greatly increased time extension error, and higher cost if the time extension error needs to be counted and analyzed for many times or for a long time. The infrared mode has the disadvantage that the center cannot see real-time video; no distinction between people or objects; when multiple persons enter and exit simultaneously or multiple persons enter and exit in a crossed manner, the precision is correspondingly reduced; the mechanical mode, fragile, later maintenance cost is higher. The disadvantage of the thermal imaging method is that the precision is reduced when people enter and exit simultaneously or multiple people enter and exit alternately. In summary, the prior art has the following disadvantages:
1) the short-time reliability is high, the time extension error is greatly increased, and the cost is higher if the time extension error needs to be counted and analyzed for many times or for a long time;
2) when multiple persons enter and exit simultaneously or multiple persons enter and exit in a crossed manner, the precision is correspondingly reduced;
3) the specific positions of personnel in the railway station cannot be detected in real time;
4) the station early warning information cannot be pushed to passengers in real time;
5) the railway station passenger flow thermodynamic diagram cannot be displayed on the map in real time.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a method and a system for detecting passenger flow, which at least solve the problem of reduced precision when multiple people enter and exit simultaneously or multiple people enter and exit alternately in the prior art.
In a first aspect, an embodiment of the present disclosure provides a passenger flow detection method, including:
acquiring information from a wireless AP, wherein the information comprises an MAC address, a timestamp and signal strength of a terminal;
obtaining passenger flow volume based on the MAC address and the timestamp in the information;
and determining the position of the terminal based on the acquired signal strengths from the plurality of wireless APs.
Optionally, after the step of determining the location of the terminal based on the acquired signal strengths from the plurality of wireless APs, the method further includes:
and analyzing the staying position, the staying time, the motion track and the motion frequency of the terminal based on the position of the terminal.
Optionally, the method further includes:
analyzing the passenger flow based on the passenger flow volume and the position of the terminal, and obtaining passenger flow information based on the analysis result;
and pushing the passenger flow information.
Optionally, the analyzing the passenger flow based on the passenger flow volume and the position of the terminal includes:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
Optionally, the obtaining passenger flow information based on the analysis result includes:
forming a graph or map-based passenger flow thermodynamic diagram based on the analysis results.
In a second aspect, an embodiment of the present disclosure further provides a passenger flow detection system, including:
and (3) wireless AP: the system comprises a processor, a time stamp and a signal strength acquisition module, wherein the processor is used for acquiring the MAC address, the time stamp and the signal strength of a terminal;
the passenger flow volume statistic module: the system is used for obtaining passenger flow based on the MAC address and the timestamp;
a positioning module: for determining the location of the terminal based on the acquired signal strengths from the plurality of wireless APs.
Optionally, the method further includes:
a terminal analysis module: the terminal location analysis system is used for analyzing the staying location, the staying time, the motion track and the motion frequency of the terminal based on the location of the terminal.
Optionally, the method further includes:
a passenger flow analysis module: the system comprises a passenger flow analysis module, a passenger flow analysis module and a passenger flow analysis module, wherein the passenger flow analysis module is used for analyzing passenger flow based on passenger flow and the position of a terminal and obtaining passenger flow information based on the analysis result;
the information pushing module: used for pushing the passenger flow information.
Optionally, the passenger flow analysis module is further configured to:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
Optionally, the method further includes:
the back end management end data display module: the system is used for displaying the results of the terminal analysis module or the passenger flow analysis module on the management end in a chart form;
a terminal display module: and the terminal is used for displaying the result of the terminal analysis module or the passenger flow analysis module in a diagram form on the terminal.
The method and the device have the advantages that the MAC address, the timestamp and the signal strength of the terminal are obtained through the wireless AP, the passenger flow volume is detected through the MAC address and the timestamp of the terminal, and the position of the terminal is determined through the signal strengths of the wireless APs on the terminal. Therefore, the purpose of improving the precision when multiple persons enter and exit simultaneously or multiple persons cross enter and exit is achieved, and the specific positions of the persons can be detected in real time.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
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The above and other objects, features and advantages of the present disclosure will become more apparent by describing in greater detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a flow diagram of a passenger flow detection method according to one embodiment of the present disclosure;
FIG. 2 illustrates a functional block diagram of a passenger flow detection system according to one embodiment of the present disclosure;
fig. 3 shows a flow diagram of train station passenger flow detection according to one embodiment of the present disclosure.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below. While the following describes preferred embodiments of the present disclosure, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein.
An AP (wireless access point) is an access point of a wireless network, and is colloquially called a "hot spot". The integrated device executes access and routing work, the pure access device is only responsible for the access of a wireless client, the pure access device is usually used as a wireless network extension and connected with other APs or a main AP to enlarge a wireless coverage range, and the integrated device is generally the core of the wireless network
A general wireless AP has two roles:
1. as the central point of the wireless local area network, other computers with wireless network cards can access the wireless local area network through the central point;
2. the purpose of extending the network range is achieved by providing long-distance wireless connection to a wired local area network or long-distance wired connection to a small wireless local area network.
WIFI Wi-Fi is a technology that allows electronic devices to connect to a wireless local area network (W L AN), typically using the 2.4G UHF or 5G SHF ISM radio frequency bands.
As shown in fig. 1, a method for detecting passenger flow includes:
step S101: acquiring information from a wireless AP, wherein the information comprises an MAC address, a timestamp and signal strength of a terminal;
step S102: obtaining passenger flow volume based on the MAC address and the timestamp in the information;
step S103: and determining the position of the terminal based on the acquired signal strengths from the plurality of wireless APs.
Acquiring information from a wireless AP, wherein the information comprises an MAC address, a timestamp and signal strength of a terminal;
the method comprises the steps that a wireless AP providing a wireless network is arranged in a scene, and when a wireless device of a terminal is in an open state, the wireless AP automatically acquires the MAC address, the timestamp and the signal strength of the terminal; the signal strength.
Obtaining passenger flow volume based on the MAC address and the timestamp in the information;
and determining the position of the terminal based on the acquired signal strength in the information of the plurality of wireless APs.
In a network environment, a plurality of wireless APs are arranged, a terminal can be connected with the wireless APs in the network environment through a wireless network, but the signal strength of each wireless AP in the terminal can be different due to distance and the like, so that the distance and the direction of the terminal relative to each wireless AP can be calculated through the signal strength of the wireless APs on the terminal by using an algorithm and a set model, and the position of the terminal can be obtained. And obtaining the moving route of the terminal based on the positions of the terminal at different times.
Optionally, after the step of determining the location of the terminal based on the acquired signal strengths from the plurality of wireless APs, the method further includes:
and analyzing the staying position, the staying time, the motion track and the motion frequency of the terminal based on the position of the terminal.
Optionally, the method further includes: analyzing the passenger flow based on the passenger flow volume and the position of the terminal, and obtaining passenger flow information based on the analysis result;
and pushing the passenger flow information.
And pushing the passenger flow information to a manager terminal or a client terminal and the like to allow the manager and the client to check the passenger flow in a certain area in real time.
Optionally, the analyzing the passenger flow based on the passenger flow volume and the position of the terminal includes:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
Optionally, the obtaining passenger flow information based on the analysis result includes:
forming a graph or map-based passenger flow thermodynamic diagram based on the analysis results.
As shown in fig. 2, an embodiment of the present disclosure further provides a passenger flow detection system, including:
and (3) wireless AP: the system comprises a processor, a time stamp and a signal strength acquisition module, wherein the processor is used for acquiring the MAC address, the time stamp and the signal strength of a terminal;
the passenger flow volume statistic module: the system is used for obtaining passenger flow based on the MAC address and the timestamp;
a positioning module: for determining the location of the terminal based on the acquired signal strengths from the plurality of wireless APs.
The wireless AP can acquire the MAC address of the associated terminal, recognize the number of terminals in a network coverage range through network handshake, acquire a mobile phone link timestamp, acquire the signal strength near a passenger and transmit the acquired data to a background big data statistical analysis system in real time.
Optionally, the method further includes:
a terminal analysis module: the terminal location analysis system is used for analyzing the staying location, the staying time, the motion track and the motion frequency of the terminal based on the location of the terminal.
Optionally, the method further includes:
a passenger flow analysis module: the system comprises a passenger flow analysis module, a passenger flow analysis module and a passenger flow analysis module, wherein the passenger flow analysis module is used for analyzing passenger flow based on passenger flow and the position of a terminal and obtaining passenger flow information based on the analysis result;
the information pushing module: used for pushing the passenger flow information.
Optionally, the passenger flow analysis module is further configured to:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
Optionally, the method further includes:
the back end management end data display module: the system is used for displaying the results of the terminal analysis module or the passenger flow analysis module on the management end in a chart form;
a terminal display module: and the terminal is used for displaying the result of the terminal analysis module or the passenger flow analysis module in a diagram form on the terminal.
In a specific application scenario, for example, a train station is specifically as follows:
as shown in fig. 3, a wireless network is covered at a railway station, the wireless network is docked with a system server, according to a wireless AP or a wireless WIFI positioning technology, after a passenger enters the station, the wireless WIFI setting is opened, at the moment, the wireless network can actively acquire the MAC address and the corresponding timestamp of the mobile phone of the user, after the wireless network obtains the MAC address of the mobile phone of the user, the MAC address is transmitted to a background server, the MAC address is used as the unique mark of the passenger, the unique mark is recorded on the background server, according to the positioning function of the wireless network, the position information of the passenger at the station at the moment can be obtained, if the number of visitors is more at the station in spring busy season, the station is easy to have some trampling or safety accidents, at the moment, the analyzed safety early warning information of a big data center of the background server can be pushed to the station in real time, and the safety early warning information pushed by the And other push messages. Therefore, the safety early warning work of the station is done so as to ensure the safety of the station. The station manager can use the developed station management background to check the station passenger flow normal distribution diagram and the station passenger flow thermodynamic diagram in real time and make station logistics security work in real time. The mobile phone in the application scenario not only limits the terminal in this embodiment to be a mobile phone, but also can be a mobile computer, a tablet, an intelligent bracelet and other devices with wireless WIFI.
The system passenger flow detection in this embodiment is implemented as follows:
the system firstly brushes OpenWrt (which can be described as an embedded L inux release) firmware on a router, and carries out secondary development on a platform through a development interface provided by a wireless network card drive, so that the WIFI mobile terminals which are related and not related around the router are scanned, and the unique hardware mark of the mobile terminal, namely the MAC address of the wireless network card, and the RSSI (signal strength indicator) value of the wireless signal strength are obtained.
The method comprises the steps of downloading a cross compiling tool chain on a Ubuntu (Wuban diagram) system, wherein the Ubuntu system is an L inux operating system which is mainly based on desktop application, and the function of the cross compiling tool chain is to provide a basis for subsequent cross compiling, programming a C language under L inux, writing a C program and compiling a Makefile (Shell script) into a program which can run under OpenWrt by using a make tool, installing the program on a router by using OPkg (light and fast suite management system), wherein the Opkg is a light and fast suite management system which is an Opensource (open source) boundary embedded system standard at present.
The installed program is essentially a UDP (user datagram protocol) packet sending program, the whole set of system obtains a wireless signal strength RSSI value and an MAC address through an AP (access point) end, the wireless signal strength RSSI value and the MAC address are sent to a central SERVER (SERVER) through the UDP for processing and analysis, then a corresponding service system analyzes and calculates data to form a related data report, meanwhile, a hundred-degree chart control eCharts (report plug-in) can be used for carrying out corresponding data statistics and analysis and visualization of results, the report is displayed through a WEB (webpage) terminal background management system terminal for commercial analysis of tourists, the service quality is optimized for a station manager, safety early warning work of station passenger flow detection is well done, and meanwhile, safety early warning information is pushed to passengers in real time.
The passenger positioning function is realized:
the system has the greatest characteristics of realizing no-mobile-phone WIFI association and having a positioning function. The wireless equipment in the coverage range is detected by deploying a plurality of wireless AP detection points, and the passenger is positioned after the signal intensity obtained by a plurality of AP ends is analyzed and calculated by an algorithm. When the router sends the UDP packet to the server, the signal intensity is included, and then the value of the signal intensity is calculated and analyzed through an algorithm, so that the passenger can be positioned, and whether the passenger is close to or far away can be analyzed according to the change trend of the signal intensity. Therefore, the manager can know the movement and the direction of the passengers without going out, and therefore the flowing trend of the passengers can be analyzed. In a specific application scene, the algorithm adopts a three-point positioning method: the algorithm principle is as follows: the three-point positioning method includes the first three circular points and the simultaneous knowledge of the radii of the three circles to find the intersection point of the three circles and reach the positioning effect.
Passenger behavior analysis and visual display:
the system also has the capability of acquiring and analyzing the behavior of the passenger near the AP, including the indexes such as the stopping position, the stopping time, the motion track, the motion frequency and the characteristics. And the results are shown in various forms such as data charts after the basic data are calculated. Meanwhile, PHP (a universal open source scripting language) language and hundred degree chart control eCharts are adopted to conduct corresponding data statistics and analysis and result visualization, and data stored in MySql (a database) is called to achieve operation through a corresponding algorithm.
The technical scheme can also be applied to scenes such as scenic spots, schools, parks, exhibition halls and the like.
The disclosed embodiments solve the following problems:
① can be used for a long time, and can be used for a long time.
② the accuracy of how many people enter the train station is not affected.
③ are capable of detecting the specific location of personnel within the train station in real time.
④ can send station warning information to passengers in real time.
⑤ can display the station people thermodynamic diagram on the map in real time.
The disclosed embodiment has the following advantages:
① has low cost and high accuracy of passenger flow detection.
② when multiple persons enter and exit simultaneously or multiple persons enter and exit alternately, the precision is not reduced correspondingly.
③ it is convenient for passenger, and the system can be used without opening wireless network of mobile phone.
④ wireless mode, it is not easy to be damaged, and the later maintenance cost is lower.
⑤ the real-time performance of passenger flow monitoring is high by adopting a background big data platform.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A method for detecting passenger flow, comprising:
acquiring information from a wireless AP, wherein the information comprises an MAC address, a timestamp and signal strength of a terminal;
obtaining passenger flow volume based on the MAC address and the timestamp in the information;
and determining the position of the terminal based on the acquired signal strengths from the plurality of wireless APs.
2. The method of claim 1, wherein the step of determining the location of the terminal based on the obtained signal strengths from the plurality of wireless APs is further followed by:
and analyzing the staying position, the staying time, the motion track and the motion frequency of the terminal based on the position of the terminal.
3. The method of detecting passenger flow according to claim 2, further comprising:
analyzing the passenger flow based on the passenger flow volume and the position of the terminal, and obtaining passenger flow information based on the analysis result;
and pushing the passenger flow information.
4. The method of claim 3, wherein analyzing the passenger flow based on the passenger flow volume and the location of the terminal comprises:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
5. The method of claim 3, wherein obtaining the passenger flow information based on the analysis result comprises:
forming a graph or map-based passenger flow thermodynamic diagram based on the analysis results.
6. A passenger flow detection system, comprising:
and (3) wireless AP: the system comprises a processor, a time stamp and a signal strength acquisition module, wherein the processor is used for acquiring the MAC address, the time stamp and the signal strength of a terminal;
the passenger flow volume statistic module: the system is used for obtaining passenger flow based on the MAC address and the timestamp;
a positioning module: for determining the location of the terminal based on the acquired signal strengths from the plurality of wireless APs.
7. The passenger flow detection system of claim 6, further comprising:
a terminal analysis module: the terminal location analysis system is used for analyzing the staying location, the staying time, the motion track and the motion frequency of the terminal based on the location of the terminal.
8. The passenger flow detection system of claim 7, further comprising:
a passenger flow analysis module: the system comprises a passenger flow analysis module, a passenger flow analysis module and a passenger flow analysis module, wherein the passenger flow analysis module is used for analyzing passenger flow based on passenger flow and the position of a terminal and obtaining passenger flow information based on the analysis result;
the information pushing module: used for pushing the passenger flow information.
9. The passenger flow detection system of claim 8, wherein the passenger flow analysis module is further configured to:
analyzing the passenger flow concentration area and the number of people in the concentration area based on the passenger flow volume and the position of the terminal;
and when the number of people in the concentrated area exceeds a preset threshold value, alarm information is formed.
10. The passenger flow detection system of claim 9, further comprising:
the back end management end data display module: the system is used for displaying the results of the terminal analysis module or the passenger flow analysis module on the management end in a chart form;
a terminal display module: and the terminal is used for displaying the result of the terminal analysis module or the passenger flow analysis module in a diagram form on the terminal.
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Application publication date: 20200728 |