CN101727691A - Remote detection system for indoor visitor flow rate of school place - Google Patents

Abstract

A remote detection system for indoor human flow in a campus site, including an embedded microprocessor, an outer infrared detection module, an inner infrared detection module, a power management module, a serial port module, a network module and a display module, the inner infrared detection module and the outer infrared detection module are both Installed at the entrance and exit of campus places, the inner infrared detection module used to detect whether people go out is installed on the inside of the entrance and exit, and the outer infrared detection module used to detect whether people enter is installed on the outside of the entrance and exit. The embedded microprocessor includes: flow of people The statistical module is used to detect the inner infrared detection signal first, shield the received outer infrared detection signal, and subtract 1 from the sum of the flow of people in the place; if the outer infrared detection signal is detected first, shield the received inner infrared detection signal Infrared detection signal, and adding 1 to the sum of the flow of people in the place; and a flow of people information output module. The invention has strong operability and good real-time performance.

Description

Indoor human flow remote detection system in campus places

technical field

The invention relates to a remote detection system for indoor human flow in a campus place.

Background technique

With the development of electronic information technology and computers, people have higher and higher requirements for informatization in life, work and study. In recent years, a human flow detection device has generally appeared in the field of human flow detection at bus stations, such as application (patent) No.: 01137315.6, which uses infrared detectors to detect the human flow at bus stations, but it can only achieve simple detection of human flow. detection, the detection results and data cannot be notified to the required users through the network; application (patent) number: 01137312.1 uses photoelectric detectors to record the flow of people, photoelectric detection is more accurate, faster and more convenient than infrared detection, but users still cannot Real-time query detection results have a lot of flaws in use.

Apply the people flow detection technology to the campus places of universities, realize the remote detection of the indoor people flow in the campus places such as classrooms, laboratories, reading rooms, lecture halls, etc. There is even no system for monitoring the student attendance rate without leaving home.

To sum up, in the field of human flow detection, there is an urgent need for a portable, mobile, intelligent, and web-enabled remote human flow detection system that can be used in college campuses. Solve a series of problems that the detection devices in the current human flow detection field cannot realize the network connection, cannot upload the detected data to the network in real time, and users cannot query the detection results in real time through the browser. Flow detection needs.

Contents of the invention

In order to overcome the deficiencies of poor operability and poor real-time performance of the existing indoor human flow detection system in campus places, the present invention provides a remote detection system for indoor human flow in campus places with strong operability and good real-time performance.

The technical solution adopted by the present invention to solve its technical problems is:

A remote detection system for indoor flow of people in a campus place, the detection system includes an embedded microprocessor, an inner infrared detection module, an outer infrared detection module, a power management module, a serial port module, a network module and a display module, and the inner infrared detection module and the outer infrared detection module are all installed at the entrance and exit of the campus place, wherein the inner infrared detection module for detecting whether someone goes out is installed on the inside of the entrance, and the outer infrared detection module for detecting whether someone enters is installed on the On the outside of the entrance and exit, the inner infrared detection module and the outer infrared detection module are all connected to the embedded microprocessor in communication, and the embedded microprocessor is connected to the power management module, serial port module, network module and display module. The type microprocessor also includes: a people flow counting module, which is used to detect the inner infrared detection signal first, shield the received outer infrared detection signal according to the signals of the inner infrared detection module and the outer infrared detection module, and calculate the Subtract 1 from the sum of the flow of people; if the outer infrared detection signal is detected first, the inner infrared detection signal received after shielding is added to the sum of the flow of people in the place by 1; The total information of the flow of people in the place, and output the comprehensive information of the flow of people in real time, so that the client can query.

Further, the inner infrared detection module and the outer infrared detection module are infrared through-radiation sensing modules, and the infrared through-radiation sensing module includes a transmitting module and a receiving module.

Still further, the detection system also includes an embedded database SQLite and an embedded Web server GoAhead, and the embedded database SQLite and the embedded Web server GoAhead are connected to the embedded microprocessor.

Furthermore, the detection system also includes an inquiry webpage, a GUI interface, a CGI page and a client browser, and the network module is connected to the Internet network, and the Internet network is respectively connected to the inquiry webpage, the GUI interface, the CGI page and the client browser connection.

The technical idea of the present invention is: based on the above background, the present invention combines embedded technology and embedded Web server to realize a remote detection system for indoor human flow in campus places. Using this system, students can inquire in real time the current usage of the classrooms, laboratories, reading rooms, libraries, lecture halls and other campus places they are going to, saving time in finding empty classrooms everywhere. School administrators can monitor the attendance rate of students in real time without leaving home, so as to make reasonable arrangements for classroom resources.

Embedded technology and embedded Web server are used to realize a remote detection system of indoor human flow in campus places, and the remote detection technology of human flow is applied to college campuses, which will help to improve the level of campus information construction.

The beneficial effects of the present invention are mainly manifested in: 1. Strong operability and good real-time performance; 2. Suitable for application in campus places.

Description of drawings

Figure 1 is a schematic diagram of the hardware structure of the remote detection system for indoor human flow in campus places;

Figure 2 is a schematic diagram of the software structure of the remote detection system for indoor human flow in campus places;

Figure 3 is a system overall scheme diagram of the remote detection system for indoor human flow in campus places;

Figure 4 is a functional schematic diagram of the embedded Web server GoAhead;

Fig. 5 is a schematic flowchart of a CGI page.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Figures 1 to 5, a remote detection system for indoor human flow in a campus site, the detection system includes an embedded microprocessor 1, an outer infrared detection module 2, an inner infrared detection module 3, a power management module 4, a serial port module 5, The network module 6 and the display module 7, the inner infrared detection module 3 and the outer infrared detection module 2 are all installed at the entrance and exit of the campus place, wherein the inner infrared detection module 3 for detecting whether someone goes out is installed at the entrance of the entrance On the inner side, the outer infrared detection module 2 used to detect whether someone enters is installed on the outside of the entrance, and the inner infrared detection module 3 and the outer infrared detection module 2 are all communicated with the embedded microprocessor 1, and the embedded Type microprocessor 1 is connected with power management module 4, serial port module 5, network module 6 and display module 7, and described embedded microprocessor 1 also comprises: People's flow counting module, in order to detect according to inner infrared detection module 3 and outer infrared detection The signal of module 2 is used to count the flow of people. If the inner infrared detection signal is detected first, the outer infrared detection signal is received after shielding, and the sum of the flow of people in the place is subtracted by 1; if the outer infrared detection signal is detected first, after shielding The inner infrared detection signal is received, and the sum of the people flow of the place is added by 1; the people flow information output module is used to output the calculated sum of the people flow of the campus place, so that the client can query.

Both the inner infrared detection module 3 and the outer infrared detection module 2 are infrared through-radiation sensing modules, and the infrared through-radiation sensing modules include a transmitting module and a receiving module.

The detection system also includes an embedded database SQLite15 and an embedded Web server GoAhead14, and the embedded database SQLite15 and the embedded Web server GoAhead14 are connected with the embedded microprocessor 1.

Described detection system also comprises inquiry webpage 16, GUI interface 17, CGI page 18 and client browser 19, and described network module 6 is connected with Internet network, and described Internet network is respectively with inquiry webpage 16, GUI interface 17, CGI The page 18 is connected to the client browser 19 .

The main functions of this embodiment:

1). Provide students with real-time query of the indoor flow of people in classrooms, laboratories, reading rooms, libraries, lecture halls and other campus places, so as to save students the time to find vacant campus places and other related campus resources.

2). Provide school administrators with the ability to monitor student attendance in real time without leaving home. School administrators can make reasonable scheduling arrangements for classroom resources based on the obtained detection conditions to achieve optimal use of teaching resources.

This embodiment provides a remote detection system for indoor human flow in a campus place, which consists of an embedded microprocessor 1, an outer infrared detection module 2, an inner infrared detection module 3, a power management module 4, a serial port module 5, a network module 6, and a display module 7. External infrared detection module driver 8, inner infrared detection module driver 9, display module driver 10, network port module driver 11, serial port module driver 12, embedded Linux operating system 13, embedded Web server GoAhead14, embedded database SQLite15, Inquiry webpage 16, GUI interface 17, CGI page 18, client browser 19 etc. are formed.

The inner infrared detection module 3 and the outer infrared detection module 2 respectively adopt the TX05C novel infrared through-radiation sensing module, and the TX05C novel infrared through-radiation sensing module is composed of TX05C-T (transmitting module) and TX05C--R (receiving module), It integrates module circuits such as power management devices, cryptographic integrated circuits, infrared modulation circuits, and medium-power infrared emitting diodes. The inner infrared detection module 3 and the outer infrared detection module 2 respectively include TX05C-T (transmission module) and TX05C--R (reception module), and are connected with the power management module 4 and the embedded microprocessor 1, and are mainly used for collecting signals .

The remote detection system for indoor human flow in a campus place is characterized in that it includes the following steps:

(1) Linux operating system kernel is cut out according to target platform hardware, makes it support TCP/IP agreement, promptly includes into network module 6, is compiling the kernel image of described embedded Linux system 13 with cross-compiler;

(2) above-mentioned compiling is transplanted on the embedded microprocessor 1 on kernel image;

(3) transplant into embedded Web server GoAhead14 on embedded Linux system 13;

(4) After transplanting the operating system, carry out relevant configuration, so that the system supports CGI dynamic page display;

(5) Transplant the embedded database SQLite15;

(6) Use CGI dynamic page technology to develop all the display pages of the system;

(7) Deploy the system on the embedded Web server GoAhead 14;

(8) connect the RJ45 interface on the network module 6, make the system access Internet network;

(9) The client uses a common browser to remotely access the deployed pages on the embedded Web server GoAhead14;

(10) system display interface has adopted MiniGUI software tool to develop GUI interface 17, realizes the local display of information;

The outer infrared detection module 2 and the inner infrared detection module 3 respectively adopt the shielding infrared sensor principle, and each detection module integrates TX05C-T (transmitting module) and TX05C--R (receiving module) respectively, and is connected with the embedded microprocessor 1 1. The power management module 4 is connected to each other, and is mainly used for collecting signals. The embedded microprocessor 1 uses this signal as a basis, and then calls the application program. After the application program has processed the data, it will be stored in the embedded database SQLite15, so that it can be called in real time when the client accesses; at the same time, the application program will also display the processed data on the local display module 7LCD, so that you can view the current data locally when needed. The flow of people in the venue.

The outer infrared detection module 2 can be deployed outside the entrances of campus places such as classrooms, laboratories, reading rooms, libraries, lecture halls, etc., to collect personnel "entry" signals.

The inner infrared detection module 3 can be deployed inside the doorway of classrooms, laboratories, reading rooms, libraries, lecture halls and other campus places, so as to collect the "coming out" signal of personnel.

The remote operator can log in to the system through the local client browser 19, and can check the current attendance of the desired classroom, laboratory, reading room, library, lecture hall and other campus places in real time, conveniently and quickly. traffic conditions.

School administrators can use this system to monitor the student attendance rate and site utilization rate in classrooms, laboratories, reading rooms, libraries and other campus places in real time, providing a basis for rational allocation of campus site resources.

As shown in Figure 1, it is a schematic diagram of the hardware structure, including an embedded microprocessor 1, a network module 6, a serial port module 5, a display module 7, an outer infrared detection module 2, an inner infrared detection module 3, and a power management module 4.

Among them, embedded microprocessor 1 adopts S3C2410 chip 32-bit low-power ARM9 processor, and uses it as the CPU of this system. The outer infrared detection module 2 and the inner infrared detection module 3 are respectively connected with the embedded microprocessor 1, and respectively complete the signal collection of "entry" and "exit" of personnel in corresponding places. The signals collected by the outer infrared detection module 2 and the inner infrared detection module 3 are sent to the embedded microprocessor 1 in an interrupted manner, and the embedded microprocessor 1 makes corresponding processing based on the signals. The network module 6 is composed of a commonly used CS8900 chip, and is connected to the Ethernet to realize interconnection with the Internet. The serial port module 5 is realized by MAX232 chip, which is used to complete the communication with the host computer, and secondly, it is also used for system hardware debugging. The display module 7 adopts a commonly used TFT 3.5-inch LCD screen to complete the function of displaying information locally. On the TFT3.5-inch LCD screen of the system display module 7, MiniGUI software tool is used to develop the local display interface of the system to realize human-computer interaction. The power management module 4 is composed of a rectification and filtering circuit, which respectively completes the conversion of 220V voltage to 5V/3.3V/1.8V voltage, and completes the power supply of the whole system.

As shown in Fig. 2, it is a schematic diagram of the software structure of the present invention. Embedded Linux operating system 13 is adopted, and embedded Web server GoAhead 14 and embedded database SQLite 15 are transplanted on it to provide data storage.

The embedded web server GoAhead14 uses CGI to develop dynamic pages, and the corresponding configuration is made on the embedded web server GoAhead14 to support CGI dynamic webpage operation and display. The client browser 19 accesses the embedded Web server GoAhead 14 through the Internet to check the stored information.

As shown in Fig. 3, it is a system overall scheme diagram of the present invention.

As shown in the figure, the system driver layer interacts with the embedded Linux operating system 13 through drivers such as the outer infrared detection module driver 8, the inner infrared detection module driver 9, the display driver module driver 10, the network port module driver 11, and the serial port module driver 12. associated. The embedded Linux operating system 13 controls the corresponding underlying hardware modules by invoking corresponding driver layer programs according to specific requirements, thereby interacting with the underlying hardware.

The system deploys the outer infrared detection module 2 on the outside of the entrance of campus places such as classrooms, laboratories, reading rooms, libraries, lecture halls, etc., to facilitate the collection of "entrant" signal; the inner infrared detection module 3 is deployed in classrooms and laboratories , reading room, library, lecture hall and other campus places inside the door, in order to facilitate the collection of "come out" signal.

When someone enters or exits the door, the outer infrared detection module 2 deployed on the outside of the door will collect the incoming signal, and after corresponding processing, the signal will be transmitted to the embedded microprocessor 1 in an interrupted manner, and the embedded microprocessor 1 will use this signal as a basis Notify the operating system, and the operating system calls the application program to perform the "add number" operation. When the inner infrared detection module 3 installed on the inside of the door collects the signal, the application program performs the operation of "reducing the number of people".

Both the outer infrared detection module 2 and the inner infrared detection module 3 have corresponding interrupt entries on the embedded microprocessor 1 . If the embedded microprocessor 1 first detects the interrupt signal of the outer infrared detection module 2, then shields the interrupt signal of the inner infrared detection module 3, and based on the signal of the outer infrared detection module 2, notifies the operating system to call the application program to execute the "addition" number operate. If the embedded microprocessor 1 first detects the interrupt signal of the inner infrared detection module 3, then shields the interrupt signal of the outer infrared detection module 2, based on the interrupt signal of the inner infrared detection module 3, notifies the operating system to call the application program to perform "subtraction" number of operations. At the same time, the application program stores the operation results in the embedded database SQLite15, which is convenient for calling the result data when needed.

After the user logs into the system through the client browser 19, the user can input and inquire about classrooms, laboratories, reading rooms, libraries, lecture halls and other place information in the HTML page, such as "Protestant 204" to inquire about the current actual flow of people in the place information. After the user inputs the information to be queried, the client browser 19 sends a request to the remote embedded Web server GoAhead14, and the embedded Web server GoAhead14 performs corresponding processing and returns the result to the client in HTML webpage format. The client can view the results with a common browser, so as to realize real-time data interaction with the remote embedded device.

As shown in FIG. 4 , it is a functional schematic diagram of the embedded Web server GoAhead of the present invention. CGI dynamic page technology is used to develop dynamic Web pages, and put them into the embedded Web server GoAhead14. When the remote client browser 19 accesses through the Internet, the embedded web server GoAhead14 will return the corresponding page after the interpretation to the client browser in HTML format, and the client can view the traffic information stored in the designated place in the database through the browser. , so as to realize the real-time human-computer interaction between the client and the remote server.

As shown in FIG. 5 , it is a schematic flowchart of the CGI page of the present invention. This page is used when ordinary users browse, and the user can remotely access the indoor traffic situation of a designated campus place in real time with the client browser 19 .

Claims (4)

1. remote detection system for indoor visitor flow rate of school place, it is characterized in that: described detection system comprises embedded microprocessor, outer infrared detection module, interior infrared detection module, power management module, serial port module, mixed-media network modules mixed-media and display module, infrared detection module and outer infrared detection module are installed in the place, gateway of school place in described, wherein, be installed in the inboard of described gateway in order to the detection interior the infrared detection module whether someone goes out, be installed in the outside of described gateway in order to the detection outer the infrared detection module whether someone enters, infrared detection module in described, outer infrared detection module all communicates to connect with described embedded microprocessor, described embedded microprocessor and power management module, serial port module, mixed-media network modules mixed-media is connected with display module, and described embedded microprocessor also comprises:

The people flow rate statistical module is added up flow of the people in order to the signal according to interior infrared detection module and outer infrared detection module, as detecting interior infrared acquisition signal earlier, and the outer infrared acquisition signal of receiving after the shielding, and the flow of the people summation in this place subtracted 1; As detecting outer infrared acquisition signal earlier, the interior infrared acquisition signal of receiving after the shielding, and the flow of the people summation in this place added 1;

The flow of the people message output module is in order to the output of the school place flow of the people summation information after will calculating, so that client query.

2. remote detection system for indoor visitor flow rate of school place as claimed in claim 1, it is characterized in that: infrared detection module and outer infrared detection module are infrared ray correlation induction module in described, and described infrared ray correlation induction module comprises transmitter module and receiver module.

3. remote detection system for indoor visitor flow rate of school place as claimed in claim 1 or 2, it is characterized in that: described detection system also comprises embedded web server and embedded database, and described embedded web server is connected with embedded microprocessor with embedded database.

4. remote detection system for indoor visitor flow rate of school place as claimed in claim 1 or 2, it is characterized in that: described detection system also comprises query webpage, gui interface, the CGI page and client browser, described mixed-media network modules mixed-media is connected with the Internet network, and described Internet network is connected with client browser with query webpage, gui interface, the CGI page respectively.

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