Google
 

Home | Product | Solution |Purchase | contract-us

　
　
CDMA wireless transmission of moving images Monitoring System

    

Implementation is the function of the ordinary video camera to capture the instant of the video signal, and then compressed. The module supports a different compression ratio and image size, the user can select eight cards, four cards, two cards, a card device, image format and frame rate. The image frame rate, capture, grasping frame functions have complete management settings.

wireless data transmission module

Video Compression after collecting a good video can be compressed image files sent to the Centre: send the way through eight Unicom's CDMA bundled modules, respectively  image transmission, while the CDMA system has the PPP dial-up process, embedded Implementation of the TCP / IP protocol, support for dynamic IP.

video images recorded module

RO-8K mobile video surveillance system using CDMA in addition to image transmission, is also a digital hard drive recorders, video recorders with hard drive, playback, control, backup, such as automatic storage and to delete all of the features. Can not clear the scene when the transmission of images on record, playback, high-definition reduction.

P/T camera control module

P/T system to control the camera's zoom, and the preferences of cruise, remote control command center to the front end.

command center

 Mobile command center of the video terminals to receive data, showed that extraction on the wall, forwarding features such as streaming media, but also the front-end equipment set of parameters, control, remote wake-up call.

video receiver module

 To receive long-range wireless data, a visual image decoding and working conditions in accordance with wireless networks and mobile video terminals into the best mode of coordination, through the specialized equipment can be embedded achieve up to 16 image data reception.

video streaming transponder modules

 As wireless bandwidth can not be limited to multiple users to send images, the receiver must do streaming forward, with a network of other users through video streaming media server forwarded the request for access to long-range wireless image, and image resources.

image coding downlink module

 Receive digital image data or simulated image data compression, through the Unicom's network down to front-end mobile video terminals, mobile video terminals in the command center can choose to see any images, suitable for the establishment of the temporary command center.

digital matrix module

 To receive the image data can be distributed through the network, but if need access to analog surveillance equipment or simulated matrix, the image data to be converted to analog signals, digital matrix physical to complete the digital simulation of the process, large-scale monitoring network in the necessary equipment.

GPS positioning module

 Mobile video terminals equipped with the latest high-sensitivity GPS receiver module, real-time detection of the location of their own, through the CDMA wireless network access uploaded to the command center, the command center in real-time images to see the front of a moving target at the same time show the location on the map.

system's security

Image Monitoring itself is very important in the process of wireless security has become very crucial, a lack of security of wireless transmission image will not be able to play a monitoring role in strengthening security, the opposite also brought potential safety problems, caused losses to the user. The transmission system in use in a variety of ways and means of encryption to protect data and image security.

(1) the image data sent separate multi-channel parallel. End each compression of the image data are split into several packages were sent, it is difficult to be intercepted at the same time, even if it is difficult also was intercepted by order of splicing.

(2) the use of images of the key frame IDEA encryption. IDEA (International Data Encryption Algorithm) for the use of length of 128 bit key, data block size is 64 bit. Theoretically, IDEA is great strength of the encryption algorithm, there is still no effective method of the attack algorithm.

(3) China Unicom's IP green binding. In the image data transmission, can be directly through the network of China Unicom subscribers to the command center rather than through the Internet. China Unicom to provide IP bundled the green features can be specified UIM card can only be connected to a specific IP address and eliminate the potential security vulnerabilities.

(4) of the system network transmission conversation agreement is not open to the public, in addition to its own current receiver analytical software and data-network did not disclose the software can parse the data-network.

(5) user name password authentication. Mobile video systems and command centres need to receive a password for the user authentication, unauthorized users can not obtain images and remote control.

(6) receiving the command center can use the network firewall and gateway to China Unicom's network isolation, further improve the transmission system of security.

system on key technologies

1 with patented CDMA wireless technology bundled multi-channel

A wireless access system to achieve the balance between the use of scheduling and fault-tolerant, narrow-band wireless transmission network under the agreement to optimize the wireless connection is not reliable data in the efficient FEC re-issued, to maximize the use of wireless bandwidth.

2 antenna signal amplification and multiplexing

The use of multi-channel system in the bundle, for each wireless antenna module to achieve the reuse, reuse after the merger of wireless high-frequency signal power matching zoom in, so that the reuse of the CDMA signal sensitivity is higher than that of the previous multiplexing Independent channel signals.

3 possess their own intellectual property rights codec algorithm

System uses the most advanced H.264 video encoding algorithm, codec algorithm with independent intellectual property rights, in the practical application of the audio and video codec algorithm can not only achieve high-quality low-yards down the images, and can also access the wireless bundle organic Combined, according to the state channel dynamic coding algorithm, so that even clearer image transmission fluid.

4 image from top to bottom line solution

Through the same mobile device complete image of the uplink and downlink, the mobile device can also choose to watch the command center of the image, one piece of equipment to complete a number of features.

5 CDMA mobile system equipment combination of man -

COFDM use of mobile penetration and man-diffraction of the equipment can enter the room and underground to make up for the lack of CDMA signal, on the ground in COFDM access into the CDMA network in the world to see, made up COFDM distance restrictions.

7 application

With the distribution of China Unicom's CDMA network, RO-8K extremely mobile video terminals throughout the monitoring network system, with broad prospects. In the public security surveillance, Yunchao Ju, fire engines, taxis, logistics, shipping, and no one base station, railway, oil, electricity, telecommunications, disaster rescue, temporary operation, the military command, surveillance, tracking, field inspection, high-speed train routes Rescue work, etc., can play its indispensable role.

V800X/V900X Network video server

　
V-series IP/Network Cameras

Network waterproof color infrared camera (70-90 metres)
1 / 4 "SHARP CCD

V-6607H/6607SH/6608SH/6609SH/6610SH/6610T IP Cameras

     1 / 3 'SONY CCD 420 lines
     1-channel video, 1-channel audio, H.264 compression, D1 resolution, support for dynamic IP

      V-6801HW-D Infrared network integration IP Dome Cameras

　

　

IP/Network camera server/Wireless Network Camera/Knowledge Articles: