The rapid development of China's economy has put forward higher requirements for modern logistics industry, and promoting logistics informatization is the only way to develop modern logistics ...
There are many kinds of GPS satellite receivers, which can be divided into geodesic, total station, timing, handheld and integrated types according to their models; It can be divided into vehicle ...
The GPS module generally supports two modes: cold start and hot start (note: warm start is not discussed) Generally, the cold start time is much longer than the hot start time. Taking the signal ...
It is mainly used for positioning and navigation of moving objects such as ships, cars and aircraft. For example: 1. Ocean navigation and harbor diversion 2. Aircraft route guidance and landing ...
First of all, the GPS system is a passive system for our users, that is, the user's receiver is only responsible for receiving, decoding and computing, and will not return data. So as long as ...
The GPS system can provide precise positioning services for highly dynamic objects because it carries a high-precision atomic clock. In addition, since 2000, the United States has cancelled the im...
The users of the GPS system are very invisible. It is a one-way system, and users only receive signals without transmitting them. Therefore, the number of users is unlimited. Although the GPS syst...
At the end of the 1950s, the former Soviet Union launched the first man-made earth satellite of mankind. American scientists discovered the phenomenon of Doppler frequency shift in their tracking ...
First, GPS can provide you with location services, but it can't work forever. This is a very important point. In the wild, there are countless situations that can make the GPS receiver stop wo...