Radiomobile ultra remote digital image transmission and digital command visible control system

Abstract

A wireless remote (or ultra-remote) synchronous audio-video transmission and wireless remote (or ultra-remote) digital instruction visual control system for transmitting and controlling the digitalized sound and image in wireless mobile mode features use of the existing public networks GSM, CDMA and ADSL and their combination, the radio carrier for wireless manipulating, the advanced chips and the hardware compression encode technique (200:1) and the upgraded function of mobile telephone.

Description

technical field [0001] The invention relates to a wireless long-distance ultra-long-distance sound image (synchronous) transmission and a wireless long-distance ultra-long-distance digital command visual control system, through visual monitoring and command control of sound and image other than wireless long-distance and ultra-long-distance, wireless movement is realized The long-distance ultra-long-distance transmission and control of digital sound images belong to the field of wireless technology. technical background [0002] The current wireless audio and image transmission is transmitted and controlled by radio technology using traditional and backward wireless analog microwave transmitting and receiving equipment. The system must have a complete set of wireless telemetry, remote control transmitter and remote control receiver. At the same time, it needs a complicated antenna feeder (the local party needs to install the transmitting antenna, and the remote receiving end...

AI Technical Summary

Problems solved by technology

Non-approval will affect the rapid development needs of various industries, and approval will cause repeated occupation and mutual interference of national frequencies

In addition, part of the current wireless transmission system uses wireless spread spectrum microwave and digital microwave equipment, but they are characterized by poor penetration ability, poor anti-interference ability, poor wireless diffraction ability in places where urban high-rise buildings are concentrated, especially It is more difficult to use in the operation of many moving vehicles, such as using a directional helical antenna (without occlusion) can operate, but when entering the building group, the transmission signal will be weakened a lot and cannot be used

If the omnidirectional antenna is used to transmit images, the transmission distance is short, let alone the super long-distance visual command control with the monitoring command center

[0003] From the description of the radio technology system above, it can be seen that: ① The reliability of the current wireless microwave control technology system is poor and unstable.

②When the system is in use, it has high requirements on the external environment, poor anti-interference ability, and poor sensitivity. If it encounters bad weather, there will be image jitter and image blur, and there will be gaps and loss of transmitted data, or even no transmission at all. and control

③ Judging from the basic structural composition of the current system, the equipment investment is very large, and the operating cost is also high, which is not convenient for some small and medium-sized enterprises or large-scale popularization and use

④ Judging from the use of the current system, certain professional knowledge is required for system users, and the operation process is also very complicated. At the same time, the failure rate is high, which will cause troublesome maintenance.

⑤ A fatal weakness of conventional wireless microwave technology is that it cannot work normally and perform ultra-long-distance visual control of commands. The above point ② determines that the technical system can only be controlled better in good weather and without interference

⑥ From the point of view of the straight-line propagation characteristics of microwaves, there should be no blocking of tall buildings or tall objects in the direction of the radio beam, which is another reason why the current microwave technology cannot be widely used on a large scale

⑦In addition, what is more important is that the current various wireless microwave equipment occupies or repeatedly occupies too many limited "spectrum and frequency band" resources in the country, resulting in too low frequency utilization

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