| This thesis originates from the national key R & D plan project "Research and Application Development of High Sensitive Ultraviolet Imager".With the continuous development and expansion of China’s power and railway industries,the damage and failure of high-voltage equipment in power lines are also increasing.The UV imager uses the "sun blindness" feature of UV detection technology.During the day,it can intuitively detect the corona discharge of power equipment,accurately locate the location of the fault,and transmit the video data to the background to analyze and judge the type of fault..Further discovering the potential defects of the equipment,which is of great significance for the safety and stability of the operation of the power and railway industries.During the operation of the UV imager,a large number of video images are generated by the UV lens and visible light lens.After image acquisition and image fusion,it needs to be transmitted to the background in time for fault diagnosis.Therefore,video compression and real-time transmission are particularly important.In the application of UV imager,the requirements for video quality,real-time transmission and compression efficiency are put forward.In the development and application development of high-sensitivity UV imagers,design and implement four communication interfaces including Ethernet,USB,4G and Wi Fi based on Hi Silicon Hi3531 D hardware core board and embedded Linux,and design a video transmission system based on this.Adopting the "server-client" C / S architecture,the server uses the media processing software platform(MPP)provided by Hisilicon Hi3531 D platform to achieve video collection and H.264 compression encoding,based on RTSP,RTP / RTCP protocols Set up an RTSP server to realize real-time video transmission,and send the encoded video data stream through the network.The client uses VLC player under Windows to request video data and play it in real time.The test proves that the video transmission system has good real-time performance and smooth playback,which meets the requirements of UV imager applications. |
