Máy ảnh CCTV CCD phổ quát 18.5 lỗ LED định nghĩa cao thị giác ban đêm máy ảnh xe theo dõi ngược
The vehicle monitoring architecture consists of a three - layer networked comprehensive supervision system consisting of vehicle terminals transmission networks and monitoring centers It provides functions such as vehicle anti - theft anti robbery driving route monitoring real - time wireless transmission of video images inside and outside the vehicle rapid response to accidents and call command to solve the dynamic management problems of existing vehicles
1 Lời giới thiệu
Vehicle mounted camera GPS also known as Global Positioning System or Global Satellite Positioning System is a medium range circular orbit satellite navigation system that combines satellite and communication development technology to use navigation satellites for time and distance measurement
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The GPS satellite on the DVR frame of the vehicle monitoring camera was developed by the Space Department of Rockefeller International Company The satellite weighs 774kg and has a service life of 7 years The satellite adopts a cellular structure with a cylindrical main body and a diameter of 1.5m vệ tinh được trang bị hai tấm pin mặt trời hai lá (BLOCK I) ở cả hai bên với tổng chiều dài 5,33 mét và khu vực nhận ánh sáng mặt trời là 7.2 square meters The sun orientation system controls the rotation of the two wing battery panels to keep the panels aligned with the sun continuously providing power to the satellite and charging three sets of 15Ah cadmium nickel batteries to ensure that the satellite can operate normally in the shaded area of the Earth A multi beam directional antenna with 12 units is installed at the bottom of the celestial body which can transmit signals in two L - bands 19cm and 24cm waves ) with an angle of approximately 30 degrees Omnidirectional telemetry and remote control antennas are installed on both ends of the celestial body for communication with the ground monitoring network In addition the satellite is equipped with attitude control and orbit control systems to maintain the satellite at an appropriate altitude and angle accurately aligning with the visible ground of the satellite
