On July 23, 1993, the United States falsely accused the Chinese cargo ship "Yinhe" of transporting raw materials for the manufacture of chemical weapons to Iran, creating the "Yinhe&quo...
The GPS device, if it is only the longitude and latitude obtained, there is no requirement for the two, this is the same as the radio, which can separately receive the position information broadca...
The price of GPS locator on the market varies greatly, there are dozens of dollars and hundreds of pieces. Why such a big difference? First of all, excluding quality, manufacturers, after-sales a...
1. What is the GPS module? The GPS module is actually a signal receiver who receives the GPS satellite. He can transmit with mobile phones and computers through networks, Bluetooth, wired transmi...
1. WIFI indoor positioning By measuring the wireless signal strength of mobile devices and three wireless network access points, and using differential algorithms, precise triangulation of people...
As the name suggests, a car locator is a positioning terminal product designed and developed by enterprises that is installed inside the car to achieve the effect of positioning the car. Vehicle ...
In daily life, electronic products that can be seen everywhere generally involve the concept of positioning. There are various types of positioning, and commonly used ones include GPS positioning,...
Alarm condition: When the device detects that the external power supply is cut off, it will immediately trigger a power outage alarm and send an alarm signal to the GPS terminal positioning servic...
Alarm condition: When the vehicle vibrates. (Sensitivity and time of vibration need to be set). When the armed mode is activated, if vehicle vibration is detected, the entire building will trigger...