the examination real time wireless monitoring system solution based on 3 g

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The examination real-time wirelessmonitoring system solution based on 3G

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Abstract: This article provides a video surveillance system design principles and

implementation of a WCDMA 3G network is based, introduced the basic knowledge

of WCDMA technology, describes the implementation of WCDMA wireless

transmission method used in image monitoring system. The practical application,

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obtain the desired results.

Keywords: WCDMA; HSDPA / HSUPA; 3G; 3G ROUTER; Internet; video monitoring.

WCDMA Introduction

I. WCDMA Introduction

WCDMA is a concrete developed by the 3GPP, GSM MAP based core network,

UTRAN (UMTS Terrestrial Radio Access Network) is a radio interface of third

generation mobile communication systems. Currently there are WCDMA Release 99,

Release 4, Release 5, Release 6 versions. WCDMA full name is Wideband CDMA,

Chinese translation for "Wideband Code Division Multiple Access", WCDMA wireless

broadband communications. It supports data transfer rates ranging from 384Kbps to

7.2Mbps.

II. Demand Analysis

Examination Discipline is a prerequisite to ensure the smooth conduct of the state's

exam. Examination room has monitoring system, the use of information technology

to enhance the construction of Examination. It promotes the examination discipline

construction, improve the test management level, the National Education

Examination more fair and just.

Online Xunkao is a big step entrance examination, the examination will be more fair

and just. Online Xunkao increase the scope of the examination and monitoring

efforts strengthened monitoring. Online Xunkao the Xunkao staff far beyond the

traditional Xunkao in the examination room Xunkao member of the network

monitoring, provincial Shizhaoshengban, educational administrative departments at

all levels as well as government leaders can be a test of Xunkao member. Xunkao

online monitoring system, not only for the candidates of the exam supervision, but

also on-site supervision of invigilators. In addition, online Xunkao timely, prompt




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reflection live on, will be conducive to the recruitment sector trends accurately

grasp the examination room, capable of handling various contingencies good

examination room. Examination of 3G WCDMA wireless network video surveillance

system not only reflects the management level of the examination room, more

conducive to the examination of standardized management.

III. Investigation monitoring program

For our equipment, following are two solutions for customer reference

1. First Solution

A program by the camera, video server, Xiamen Caimore CM8150G WCDMA wireless

router and a central control room components:

A system consists of monitoring center, CM8150R WCDMA routers, video servers and

camera components:




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Network topology: first

2. Second solution

Option II by the IP camera, Xiamen Caimore CM8150G wireless router and a central control

room components:




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Network topology: first

1) video server or IP camera

Choose different brands of video server or IP camera according to the environment and the

needs of each examination.

2) wireless transmission using Xiamen Caimore of CM8150R 3G router

CM8150R wireless router, using high-performance 32-bit ARM9 industrial communication

processor for embedded real-time operating system software support platform, the system

integrates 3G wireless technology, online maintain technology and VPN security technology,

customers can provide remote, stable reliable wireless video

surveillance. It can be widely used in mobile car video capture,

emergency command site video surveillance, traffic scene video

surveillance, passenger car safety video surveillance, video surveillance

field simulated combat systems, financial security monitoring, engine

room monitoring, industrial field instrumentation monitoring and many




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other industries .

IV. networking implementation

System solutions in the WCDMA router is connected to the public network-based monitoring

center on the way to establish a VPN tunnel to transmit video, network implementation as follows:

1) The monitoring center line mode access, can be with ADSL or fixed IP address DDN, or Frame

Relay FR.

2) CM8150R: Configuration open data services Unicom WCDMA 3G SIM card, configure VPN

(PPTP or L2TP) and other functional necessity, detailed configuration, please refer to Xiamen Caimore

"CM8150R WCDMA Route Manual."

3) video server / IP camera: Configuring Video Server IP address and Xiamen Caimore WCDMA

router's IP address on the same network segment, IP address, destination address of the gateway

point to the WCDMA router is set to a fixed IP address of the central control room, and other

functional configuration Please refer to the brand video server use.

4) The connection between the router and the operators of the monitoring center, the best

firewall, shielding off all unused ports, thus ensuring security monitoring center.

5) System Check

After the current face four tasks are set up, you can click on the corresponding node in the

monitoring center camera into the real-time images:




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The picture is as follows:

Enter the Configuration:




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Remote configuration screen is as follows:




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V. Conclusion

With increasing levels of production management, remote wireless video surveillance has been

widely used, more and more mature, and is moving network, intelligent direction. WCDMA 3G

wireless transmission of data using the communication method to solve the communication problem

of remote monitoring system, compared to other wired communication has incomparable superiority.

Since the transmission of video image data, the amount of data and more frequent, may choose not

to limit the use of business packages more economical; customers do not need a long time for

monitoring can be used to activate technology Xiamen Caimore router, when you need to see the

image , it activates the wireless transmission function, you do not need to watch, do not activate the

wireless transmission capabilities, so you can save communication costs. Our laboratory constructed

in the wireless remote video monitoring, access to the desired results. Moreover, with the gradual

improvement of mature WCDMA network and application technology, WCDMA applications will be

more broad. WCDMA wireless transmission system presented here can be extended to a variety of

needs testing, monitoring and security of the environment.
