A wireless network video monitoring system of high mobility and the corresponding control method

Abstract

The invention relates to a wireless network video monitoring system with high mobility, which comprises a video monitoring terminal, a wireless network transfer module and a video surveillance system. The video monitoring terminal collects video signals through a camera, then the video signals are sent to a main processing module after being transformed by A/D; voice frequency signals are sent to the main processing module after being processed by a voice frequency processing module, and the video signals and the voice frequency signals processed by the main processing module are stored in a real-time memory card and are sent to the wireless network transfer module, the software of which is controlled by SD. The SD controls the wireless network to automatically be linked to a video server to update the video monitoring video when mobile carriers reach a base station. The invention has the advantages of high reliability, guaranteeing uninterrupted video monitoring, high transmitting speed, low cost of equipment, high price performance, flexibility and practicality; the invention absolutely solves video monitoring blind spots and pitfalls of mobile objects and fills up the video monitoring blank of the mobile objects.

Description

technical field [0001] The present invention relates to a video monitor, in particular to a wireless video monitor connected to a wireless local area network (WLAN) and a control method thereof. The device can coordinate video transmission according to a local storage mode to obtain optimal video monitoring and transmission It is used for wireless video surveillance in mobile fields such as urban public transportation and rail transit systems. In this paper, wireless local area network (WLAN) refers to the wireless local area network using IEEE802.a / b / g protocol, Background technique [0002] As an important security means, video surveillance has a long history of development. Video surveillance system is a high-tech product with high technical content and wide application range. It includes the real-time collection of video signals, compression coding, network transmission, and reception and reconstruction. Due to the development of network technology, the use of network ...

AI Technical Summary

Problems solved by technology

[0003] However, the current wireless (CDMA / GPRS / EDGE) network video surveillance system is mainly based on the wireless access method of public wireless mobile network communication. Although the mobile public network (CDMA / GPRS / EDGE) covers a long distance, the transmission rate is limited, and the image The effect is poor, and you need to pay high rent for renting the wireless network bandwidth of the mobile public network

WLAN has a high transmission rate but a small coverage area, which is greatly restricted in application.

These real-time monitoring systems are not able to prevent in advance, and use video surveillance data to provide evidence after the event

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