Principle of GPS positioning
3 alarm (report)3.1, overspeed alarm: when the vehicle speed exceeds the preset speed of the monitoring center, timely report to the monitoring center3.2, the regional alarm (electronic fence): the monitoring center to set the scope of the region, the vehicle is beyond or into the preset area will be given to the monitoring and dispatching center of the corresponding alarm3.3, parking report: the dispatch center can be the history of the vehicle parking records in the form of text to generate statements, which describe the vehicle parking place, time and driving time and other information, and can be printed.3.4, emergency alarm: once in case of emergency (such as robbery etc.), please immediately press the emergency alarm button, the alarm to the monitoring center, monitoring center immediately will know you are in a state of emergency and the location of your. After verification, into the police to deal with the situation, to help you out. Note: once the emergency alarm button is activated, the device will immediately turn off the call function, but the message function is normal3.5, under voltage alarm, when the car battery voltage is too low, the car will automatically monitor the alarm center, the monitoring center duty officer to remind the user to charge the vehicle in a timely manner.3.6, cut line alarm, after the main battery is damaged or can not be powered, the built-in backup battery can continue to work to maintain the product, and the monitoring center to send a wire cut alarm.
GPS (Global Positioning System) is a global positioning system, is the establishment of a satellite navigation system, using the system, users can achieve all-weather, continuous and real-time three-dimensional positioning and velocity measurement in the global scope; in addition, by using this system, users can also make precise positioning and high precision time transfer and high precision.In real life, GPS positioning is mainly used for mobile people, pets, vehicles and equipment for remote real-time positioning and monitoring technology. GPS positioning is a combination of GPS technology, wireless communication technology (GSM/GPRS/CDMA), image processing technology and GIS technology positioning technology, mainly to achieve the following functions:1 tracking and positioningThe monitoring center can monitor the real time position, direction and speed of all the controlled vehicles for 24 hours, in order to grasp the situation of the vehicle in time.2 track playbackMonitoring center can playback at any time within 60 days of the custom period of vehicle travel history, track records. (according to the situation, optional track DVD burning service)
