CN102831675A

CN102831675A - RTLS (real time positioning system) campus safety management

Info

Publication number: CN102831675A
Application number: CN2012101662556A
Authority: CN
Inventors: 徐成琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-26
Filing date: 2012-05-26
Publication date: 2012-12-19

Abstract

The invention provides a wifi real time positioning campus safety management scheme, wherein a wi-fi wireless transmission technology and a RFID (radio frequency identification device) identification technology are combined, thereby realizing the student positioning management in true significance. According to the technology, an existing wireless network environment in the school is utilized, no any card sweeper or card reading device needs to be added but only an electronic tag is pined on a student, and furthermore in combination with a corresponding positioning algorithm, the safety monitoring to students at school is then realized.

Description

The RTLS campus security management

Technical field

The invention provides a kind of campus security management system that on wi-fi real-time positioning technology and wi-fi electronic label technology basis, develops, can be adaptable across all kinds of middle and primary schools, kindergarten, so that guarantee the safety of student better in the school.

Background technology

At present; The security incident of each middle and primary schools, kindergarten happens occasionally; To the security situation of this sternness, the Ministry of Education, the Ministry of Public Security require school to set up safety of student circular system, the student is advanced school time, the time of leaving school, safety of student information in time inform its guardian.The campus security management platform is set up on this requires.The solution of campus security management all is on the school doorway read write line equipment to be installed now, and this equipment connects the logical server in tame school, when the student passes in and out school gate, on read write line, swipes the card, and read-write equipment triggers the logical software in tame school automatically and sends the safety note.But this scheme can only accomplish to inform that the child head of a family passes in and out the time of school gate, and can't carry out real-time protection comprehensively in the safety in school to the student.

Summary of the invention

This patent has proposed a kind of wifi real-time positioning campus security management scheme, and this technology combines the wi-fi Radio Transmission Technology with the RFID recognition technology, can realize student's orientation management truly.This existing wireless network environment of techniques make use school need not to add any card reader or card-reading apparatus, only needs to combine corresponding location algorithm at the other one piece of electronic tag of student on one's body again, can realize the security control to students.Its identification work of Wi-fi real-time positioning campus security management technology need not manual intervention, has both made things convenient for student's use, has also reduced the investment of school at hardware aspect.The campus security management system that on this technical foundation, sets up not only can improve the management level of school, especially the technical foundation and the support in the strong school of new period development science and technology.This technology is applicable to the Wireless Communication Equipment of any brand based on the 802.11b/g standard.

Wifi real-time positioning campus security management system is made up of wi-fi positioning label, wireless local network connecting point (AP) and location-server three parts.Wherein electronic tag can be designed as the school badge form not on student's clothes, has this student's essential information in the label, like name, sex, class etc.In the WLAN scope that in a single day student gets into school and covered, system just can automatically identify the student information on the Electronic school badges.Positioning label periodically sends 802.11 wireless signals, after access point (AP) is received information, sends signal to engine of positioning server (EPE); EPE can be according to the power of the wireless signal of receiving; According to corresponding location algorithm, calculate and judge student's residing particular location, good signal intensity map comes assist location can also to utilize prior survey simultaneously; To improve locating accuracy, the form with electronic chart shows on the backstage at last.In case the student is not in the WLAN scope that school covered, system then send information on parents of student's mobile phone automatically.Active call function when this electronic tag also has the danger of chance; When the student runs into emergency situation; Button on can the light electric shock subtab just can be realized seeking help; System receives the position that can navigate to the student after the help signal at once, realizes supporting fast and accurately, has guaranteed the safety of student in the school.

Description of drawings:

Fig. 1 is RTLS campus security management SNA figure

As shown in the figure, wi-fi real-time positioning campus security management system utilizes school's prior wireless network resource, realizes the real-time positioning to the student by wi-fi positioning label, wireless aps location, engine of positioning server.AP adopts the 2.4GHz frequency range, supports the 802.11b/g pattern.

Fig. 2 is RTLS campus security management positioning flow figure

1. collect the AP signal, and with the GPS location, thereby the coordinate information of each AP has been arranged, add fashionablely as new AP, need gather the AP signal again to adapt to the variation of focus

2. the coordinate information of each access point that will gather imports in the database, and each access point is carried out unique identification

3. utilize margin signal characteristic method acquired signal intensity; By the packet that sends by portable terminal in the scanning software monitoring wlan network environment of computing machine; And analyze and preserve each reception signal intensity that obtains, thereby form the received signals fingerprint information of describing each position

4. transmitting terminal is launched with the fixed signal energy of receiving end prevision; Receiving end is estimated the distance between the transceiver through measuring the energy and the decay that receive signal; And compare according to existing propagation model, the energy that receives signal, the energy that sends signal, finally confirm the sending and receiving end distance

In sum, the present invention has following technical characterstic:

Global unified wi-fi standard only need utilize the network equipment of prior wireless network wi-fi to receive and transmit signal, and installation is implemented convenient, only needs be equipped with an electronic tag to the student, need not expensive read write line, has reduced cost

The location is accurate, and precision reaches about 1-3m

Use Open architecture design, engine of positioning EPE can seamlessly be integrated in the softwares such as existing middleware, database, Students'Management System, tame school be logical

Have and report to the police and short message prompt function

The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. RTLS campus security management is characterized in that:

Global unified wi-fi standard only need utilize the network equipment of prior wireless network wi-fi to receive and transmit signal, and installation is implemented convenient, only needs be equipped with an electronic tag to the student, need not expensive read write line, has reduced cost.

2. RTLS campus security management is characterized in that:

Realize the omnibearing monitoring of students, broken through traditional safety management mode that is only limited to the gate inhibition

A kind of RTLS campus security management is characterized in that:

Electronic tag has initiatively warning function, and the student meets danger can initiatively press the button of seeking help.