Since December 27, 2011, the automobile GPS positioning system began to provide continuous passive positioning, navigation, timing and other trial operation services to my country and surrounding ...
1. Satellite track There are 24 GPS satellites orbiting the earth in six orbits (groups of four), and generally no more than 12 satellites are on the same side of the earth, and most GPS receiver...
1. DGPS function To minimize the effects of SA and atmospheric refraction, there is a device called a DGPS transmitter. It is a fixed GPS receiver (set within a radius of 100km to 200km of a surv...
From the current mainstream models on the market, the main anti-theft methods include immobilizer engine (IMMO), remote control door lock (RKE), keyless entry (PKE), two-way smart key, infrared de...
1. Overview of System Implementation Theory GPS currently has 24 satellites in the space satellite constellation, including 21 working satellites and three spare satellites in orbit. Each satelli...
At present, in-vehicle technology is very mature. It is widely used in anti-theft tracking of private cars, scheduling control of logistics vehicles, electric security for taxis, intelligent elect...
In-vehicle GPS has become an indispensable part of consumer electronic products around the car. With its own unique satellite navigation capability, it has become a magic weapon for many car owner...
Where did the monitored target go? How long did it stay? How fast did it go? Where did it go every day for two months? Are you worried that your car will be stolen or robbed? Does your company ha...
Antenna is an important factor: GPS antennas are used in common GPS products such as handheld, PDA, Bluetooth, G-Mouse, etc. Source, passive and even omnidirectional antenna, among more than a d...