Vehicle-mounted wireless video interaction transmission system for traffic accident surveying vehicles

Abstract

The invention discloses a vehicle-mounted wireless video interaction transmission system for traffic accident surveying vehicles. The vehicle-mounted wireless video interaction transmission system comprises a vehicle-mounted terminal of a traffic accident surveying vehicle, a wireless transmission device and a command center server terminal, wherein the vehicle-mounted terminal of the traffic accident surveying vehicle converts video image analog signals into an accident collection field into video image digital signals; the wireless transmission system sends the digital signals to a 3G (third generation) wireless network; and the command center server terminal receives the digital signals sent by a wireless transmission device through a network butt joint module according to the preset network safety requirements, and feeds back to the vehicle-mounted terminal of the traffic accident surveying vehicle through the network butt joint module so as to achieve the effect of information interaction transmission. Based on the 3G wireless network, the embodiment of the invention takes a WCDMA (wideband code division multiple access) and a CDMA (code division multiple access) 2000 as main carriers, and has the advantages of good confidentiality, interference resistance, multipath fading resistance, flexible configuration, low cost and the like; and in the aspect of a wide band, the WCDMA and the CDMA2000 meet the requirement of transmission after the compression of high-definition video signals, and has a transmission mode of several-for-one.

Description

technical field [0001] The present invention relates to the technical field of wireless video interactive transmission, in particular to a traffic accident monitoring system for interactive transmission of video signals in a many-to-one structure using a 3G wireless network as a carrier between the command center of the traffic police corps and traffic accident investigation vehicles. Vehicle-mounted wireless video interactive transmission system for survey vehicles. Background technique [0002] With the rapid increase of my country's car ownership rate and the accelerated pace of society in recent years, the field of traffic safety is also facing increasingly severe challenges. Once a traffic accident occurs, especially a major and extraordinarily large traffic accident, it is necessary for the command center to formulate an appropriate rescue and evacuation plan in the fastest time to prevent the congestion from expanding and spreading and causing greater losses and confu...

AI Technical Summary

Problems solved by technology

[0004] Previous microwave or 3G wireless video transmission systems, due to limited user needs, often used one-way video transmission, or point-to-point transmission structures, lacking interactive multi-point transmission and feedback links, and could not meet the real-time requirements of the traffic department based on the location of the incident. Comprehensive requirements for deployment and deployment

In addition, due to the need to meet the needs of wireless video transmission and reception at the same time, the construction of vehicle-mounted mobile terminals and command centers is cumbersome, and the types and degrees of difficulties have also become limiting factors for this type of wireless video transmission system.

Images