CN108391234B - People flow detection device based on wiFi technique - Google Patents
People flow detection device based on wiFi technique Download PDFInfo
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- H—ELECTRICITY
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- 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
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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Abstract
The invention belongs to the technical field of intelligent people flow detection equipment, and particularly relates to a people flow detection device based on a WIFI technology, which comprises a main structure, wherein the main structure comprises a vertical rod, a WiFi probe, a PC host, a network card and a convergence server, and a group of WiFi probes, the PC host and the network card can run in a linkage manner and independently and do not influence each other, even if one group is damaged, the normal use of other groups is not influenced, the WiFi probe sends passenger flow information collected by monitoring and detection to the convergence server, and the convergence server analyzes and calculates by combining with a map to draw a passenger flow hotspot map and a passenger flow running track map, so that the intelligent construction and development of a stadium are realized; the wireless function monitoring device is simple in structure, scientific and reliable in principle, easy to realize, simple and convenient to operate, environment-friendly, energy-saving, high in intelligent degree and environment-friendly, and the wireless function of the electronic equipment carried by passenger flow can be monitored by the WiFi probe in the opening state.
Description
The technical field is as follows:
the invention belongs to the technical field of intelligent people flow detection equipment, and relates to a people flow detection device based on a WIFI technology.
Background art:
with the outbreak of the WiFi market, the application of the WiFi probe technology in various fields is gradually increasing, WiFi is a technology that allows electronic devices to connect to a Wireless Local Area Network (WLAN), and usually uses 2.4G UHF or 5G SHF ISM radio frequency band, and the connection to the wireless local area network is usually password protected, but can also be open, so as to allow any devices within the range of the WLAN to connect, WiFi is a brand of wireless network communication technology, and is held by the WiFi alliance, in order to improve the interoperability between wireless network products based on IEEE802.11 standard, and the WiFi uses IEEE802.11 protocol set, and the sub-protocols included in the IEEE802.11 protocol set are developed mainly according to the time sequence: 802.11a, 802.11b, 802.11g, and 802.11 n. In network communication, data is encapsulated into a frame, where a frame refers to a data block in communication, and the frame has a fixed format when transmitted at a data link layer, as shown in fig. 4: the frame is not packaged and packed randomly for transmission, the size is limited, the frame packaging must follow the rules of minimum 46 bytes and maximum 1500 bytes, taking the frame structure of 802.11 (as shown in fig. 5) as an example: there are three types of frames in 802.11: management frames (e.g., Beacon frames and Probe Request frames), Control frames (e.g., RTS frames, CTS frames, and ACK frames), and Data frames (Data frames, Data-carrying carriers in which the DS field is used to identify the direction is important), the type field in the header of the Frame identifies which field the Frame belongs to.
The frames related to the WiFi probe technology comprise a management frame and a data frame, wherein the management frame comprises a beacon frame and a probe request frame: the beacon frame (BeaconFrame) is a very important maintenance mechanism, and is mainly used to announce the existence of a certain AP (wireless access point) network, and periodically transmitted beacons can make the mobile WiFi device know the existence of the network, thereby adjusting the parameters necessary for joining the network. In a basic network, an AP must be responsible for sending Beacon frames, the range of the Beacon frames is a basic service area, and in the basic network, all communication must pass through the access point, so that WiFi equipment cannot be too far away, otherwise beacons cannot be received; the WiFi equipment utilizes a Probe Request frame (Probe Request) to scan which 802.11 networks are in the area; when the access point needs to send a frame to the WiFi device but does not need to confirm the information transmitted before, a standard Data frame (Data) is used, the standard Data frame does not inquire whether the other side has Data to transmit, the receiving side is not allowed to transmit any Data, and a pure Data (Data-Only) frame used in the contention-free period is completely the same as a Data frame used in the contention-free period.
The working principle of the WiFi probe is shown in fig. 6, the WiFi probe is actually an AP, and broadcasts and sends Beacon frames to the periphery of the WiFi probe at regular time to notify nearby WiFi devices that the AP exists, meanwhile, the WiFi devices (such as mobile phones and tablet computers) continuously send probe frames to find nearby available APs, the probe frames include MAC addresses of the devices, the MAC addresses of the devices are acquired after the APs receive the probe frames, and the APs are WiFi probes. Under the condition of not connecting WiFi, the mobile equipment only sends probe frames, at the moment, data transmission cannot be carried out through accessing a network by the probe, the probe only can receive the probe frames sent by the WiFi equipment, MAC addresses carried by the probe frames are collected, and the collected information is absolutely irrelevant to personal information of users and other information on the equipment. The probe does not provide the internet access function, the data flow between the user and the probe is only limited in that the probe sends a broadcast, the mobile equipment sends a connection request, and personal information such as a mobile phone number, a user name, a gender and the like and detailed information of the equipment are not contained in the probe; however, WiFi is different in that WiFi provides internet access function, when a user uses it to access internet, all traffic of the user can be seen by WiFi, and the content of the traffic contains personal information of the user. Because the probe is designed to detect only some peripheral equipment and does not generate a large amount of data, the collected data is not stored in the probe during the design and is directly sent to the central server through wired connection, so that even if a malicious person takes the probe away, the information collected by the probe cannot be obtained, and meanwhile, the wired connection also ensures that the data transmission process is not easy to monitor and steal in the form of electromagnetic waves. The central server is generally in an IDC (internet data center) room, and the access to the IDC room requires layer-by-layer permission of the IDC. Thus, the data of the probe is secure regardless of whether the data is transmitted or stored. In the prior art, the WiFi probes are individually monitored and detected, only the corresponding surrounding people flow can be detected, the specific position of the customer cannot be accurately judged, and a plurality of WiFi probes are not matched with each other for use. Therefore, research and development designs an intelligent people flow detection and assistance-localization real-time's wiFi probe device, uses a plurality of wiFi probes cooperation of linking each other to solve the signal blind area, improve the accuracy, realize the assistance-localization real-time of people flow in large-scale space places such as building and hall institute, have good economy and social, very have application prospect.
The invention content is as follows:
the invention aims to overcome the defects in the prior art, and seeks to design a WiFi probe device for intelligent people flow detection and auxiliary positioning, wherein a plurality of WiFi probes and a convergence server are used in a linkage and matching mode, so that the auxiliary positioning of people flow and the analysis of flow tracks in large-scale space places such as buildings and houses are realized.
In order to achieve the above object, a main structure of a human traffic detection device based on WIFI technology according to the present invention includes: the device comprises a vertical rod, a WiFi probe, a PC (personal computer) host, a network card and a convergence server; the top end of the vertical rod of the rod-shaped structure is provided with a WiFi probe, a PC host and a network card, the WiFi probe is electrically connected with the PC host, the PC host is electrically connected with the network card in a plug-in mode, the PC host is connected with the convergence server through the network card in a network mode, and the number of the PC hosts connected with the convergence server is 1-n (n is an integer greater than 1).
The height of the vertical rod is 3 to 5 meters; the WiFi probe is a wireless access point; the PC host is a computer host; the network card comprises a wired network card and a wireless network card, and can upload the MAC address information collected by the WiFi probe to the convergence server; the aggregation server is a workgroup server.
When the people flow detection device based on the WIFI technology is used, the WiFi probe and the network card are respectively connected with the PC host and then are arranged at the top ends of the upright rods, 1-n upright rods are arranged at set positions of large indoor and outdoor space places to enable the upright rods to surround the periphery of the large indoor and outdoor space places, then the PC host is connected with the convergence server through the network card, and finally the WiFi probe, the PC host and the convergence server are started; when a structural platform capable of replacing a vertical rod is arranged in a large indoor and outdoor space place, a group of WiFi probes, a PC (personal computer) host and a network card are arranged on the structural platform; when passenger flow enters an indoor and outdoor large-scale space, WiFi probes on upright rods arranged around the indoor and outdoor large-scale space monitor MAC address information of wireless network cards of electronic equipment such as mobile phones or computers carried by the passenger flow, the electronic equipment carried by the passenger flow is in an open state, the WiFi probes can monitor the MAC address information no matter whether the electronic equipment carried by the passenger flow is connected with peripheral wireless APs or not, the WiFi probes transmit the MAC address information to a convergence server through the network cards connected with a PC host, the convergence server performs data analysis and processing on the basis of map software of the indoor and outdoor large-scale space arranged in the convergence server and the received MAC address information, draws a passenger flow hotspot map and a passenger flow running track map, and can visually reflect specific positions, passenger flow data and passenger flow moving routes of the passenger flow in real time; n-piece group WiFi probes, PC host and network card can the exclusive use or the linkage use, do not influence each other, do not restrict each other, and wherein a set of WiFi probes, PC host and network card damage to do not influence the normal use of other group WiFi probes, PC host and network card.
Compared with the prior art, the WiFi probes, the PC host and the network card in groups can be operated in a linkage manner and also can be operated independently, the WiFi probes and the PC host and the network card are not mutually influenced, even if one group is damaged, the normal use of other groups is not influenced, the WiFi probes send passenger flow information collected by monitoring and detection to the convergence server, the convergence server analyzes and calculates by combining with a map, a passenger flow hot spot map and a passenger flow running track map are drawn, and intelligent construction and development of a stadium are realized; the wireless function monitoring device is simple in structure, scientific and reliable in principle, easy to realize, simple and convenient to operate, environment-friendly, energy-saving, high in intelligent degree and environment-friendly, and the wireless function of the electronic equipment carried by passenger flow can be monitored by the WiFi probe in the opening state.
Description of the drawings:
fig. 1 is a schematic diagram of the principle of the main structure of the present invention.
Fig. 2 is a schematic diagram illustrating a principle of a usage process of the human traffic detection device based on the WIFI technology according to the present invention.
Fig. 3 is a schematic view of a usage state principle of a human traffic detection device based on the WIFI technology according to embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a fixed format of a frame transmitted at a data link layer according to the background art of the present invention.
Fig. 5 is a schematic size diagram of a frame structure of 802.11 according to the background art of the present invention.
Fig. 6 is a schematic diagram of the working principle of the WiFi probe according to the background art of the present invention.
The specific implementation mode is as follows:
the invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Example 1:
the main structure of the people flow detection device based on the WIFI technology in this embodiment includes a vertical rod 1, a WiFi probe 2, a PC (personal computer) host 3, a network card 4 and a convergence server 5; the top end of the vertical rod 1 of the rod-shaped structure is provided with a WiFi probe 2, a PC host 3 and a network card 4, the WiFi probe 2 is electrically connected with the PC host 3, the PC host 3 is electrically connected with the network card 4 in a plug-in mode, the PC host 3 is in network connection with the convergence server 5 through the network card 4, and the number of the PC hosts 3 connected with the convergence server 5 is 1-n (n is an integer larger than 1).
The height of the vertical rod 1 related to the embodiment is 3 meters to 5 meters; the WiFi probe 2 is a wireless access point; the PC host 3 is a computer host; the network card 4 comprises a wired network card and a wireless network card, and the network card 4 can upload the MAC address information collected by the WiFi probe 2 to the convergence server 5; the aggregation server 5 is a workgroup server.
When the people flow detection device based on the WIFI technology is used in a stadium, the WiFi probe 2 and the network card 4 are respectively connected with the PC host 3 and then are arranged at the top end of the upright rod 1, the upright rods 1 are respectively arranged at 4 corners of the stadium, then the PC host 3 is connected with the convergence server 5 through the network card 4, and finally the WiFi probe 2, the PC host 3 and the convergence server 5 are started; when passenger flow enters a stadium, the WiFi probe 2 on the upright rod 1 monitors MAC address information of a wireless network card of an electronic device such as a mobile phone or a computer carried by the passenger flow, the WiFi probe 2 can monitor the MAC address information whether the electronic device carried by the passenger flow is connected with a peripheral wireless AP or not as long as the electronic device carried by the passenger flow is in an open state, the WiFi probe 2 uploads the MAC address information to the convergence server 5 through the network card 4 connected with the PC host 3, and the convergence server 5 performs data analysis and processing on the basis of map software of the stadium installed in the convergence server and the received MAC address information to draw a passenger flow hotspot map and a passenger flow running track map, so that the specific position, passenger flow data and a passenger flow moving route of the passenger flow can be intuitively reflected in real time; monitoring ranges among the WiFi probes 2 are overlapped, after the PC host 3 uploads the MAC address information to the convergence server 5, the convergence server 5 identifies repeated MAC address information, and only 1 piece of the repeated MAC address information is reserved; 4 grouped WiFi probes 2, PC host 3 and network card 4 can be used alone or in linkage, do not influence each other, do not restrict each other, and wherein a set of WiFi probes 2, PC host 3 and network card 4 damage to 3 other groups of WiFi probes 2, PC host 3 and network card 4's normal use is not influenced.
Claims (1)
1. The utility model provides a people flow detection device based on wiFi technique which characterized in that the major structure of device includes: the device comprises a vertical rod, a WiFi probe, a PC host, a network card and a convergence server; the top end of the vertical rod of the rod-shaped structure is provided with a WiFi probe, a PC host and a network card, the WiFi probe is electrically connected with the PC host, the PC host is electrically connected with the network card in a plugging manner, the PC host is connected with the convergence server through the network card in a network, and the number of the PC hosts connected with the convergence server is 1-n; the height of the upright stanchion is 3 to 5 meters; the WiFi probe is a wireless access point; the PC host is a computer host; the network card comprises a wired network card and a wireless network card, and can upload the MAC address information collected by the WiFi probe to the convergence server; the convergence server is a workgroup server; when the device is used, the WiFi probe and the network card are respectively connected with the PC host and then are arranged at the top ends of the upright posts, 1-n upright posts are arranged at set positions of large indoor and outdoor space places, the upright posts are made to surround the periphery of the large indoor and outdoor space places, then the PC host is connected with the convergence server through the network card, and finally the WiFi probe, the PC host and the convergence server are started; when a structural platform capable of replacing a vertical rod is arranged in a large indoor and outdoor space place, a group of WiFi probes, a PC (personal computer) host and a network card are arranged on the structural platform; when passenger flow enters an indoor and outdoor large-scale space, WiFi probes on upright rods arranged around the indoor and outdoor large-scale space monitor MAC address information of wireless network cards of electronic equipment such as mobile phones or computers carried by the passenger flow, the electronic equipment carried by the passenger flow is in an open state, the WiFi probes can monitor the MAC address information no matter whether the electronic equipment carried by the passenger flow is connected with peripheral wireless APs or not, the WiFi probes transmit the MAC address information to a convergence server through the network cards connected with a PC host, the convergence server performs data analysis and processing on the basis of map software of the indoor and outdoor large-scale space arranged in the convergence server and the received MAC address information, draws a passenger flow hotspot map and a passenger flow running track map, and can visually reflect specific positions, passenger flow data and passenger flow moving routes of the passenger flow in real time; n-piece group WiFi probes, PC host and network card can the exclusive use or the linkage use, do not influence each other, do not restrict each other, and wherein a set of WiFi probes, PC host and network card damage to do not influence the normal use of other group WiFi probes, PC host and network card.
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| CN109362034B (en) * | 2018-11-22 | 2020-12-04 | 南京茶非氪信息科技有限公司 | Macroscopic region connecting channel heat degree prediction method |
| CN111404762B (en) * | 2019-01-02 | 2022-09-16 | ***通信有限公司研究院 | User video quality difference positioning method and device |
| CN109581287B (en) * | 2019-01-22 | 2024-02-09 | 西南石油大学 | Wi-Fi-based post-earthquake pressure burying personnel positioning method |
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| CN106251578B (en) * | 2016-08-19 | 2019-05-07 | 深圳奇迹智慧网络有限公司 | Stream of people's early warning analysis method and system based on probe |
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