What,GPS,navigation,anti-speed car What is a GPS navigation anti-speed radar
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Electronic dog can not distinguish the direction of an electronic eye, such as the opposite lane or cross lane, will be false positives. The electronic dog products refers to the many habits will all anti-gun together, the electronic dog, this product is now generally called the anti-speed radar, written on the product packaging is safe autopilot or radar warning device. The categories include: full-range anti-radar gun, and GPS anti-gun radar, GPS all frequency of the radar gun, GPS navigation and anti-radar gun, below we describe in detail the various types of electronic dog.The full-range anti-speed radar equipment, of a detected radar gun installed in the car, can be detected within a certain distance around the Radar. In the car when the car close to the radar gun in the process of exercising the anti-speed radar will be issued a warning, I heard a warning to slow down to normal levels of 100-300 m range of 2 to 3 seconds is enough. Full-range anti-speed radar frequency shift calculation is based on the received reflected wave arrived at the velocity of the object. Radar is widely used in urban transport, is mainly used for the measurement of the car is speeding, points both fixed and mobile, fixed installation in the bridge or crossroads (fixed speed this way the small number of) the general flow installed in patrol cars. Velocimetry used in the world more than about 80% of the city is a pressure sensitive coil way gun, this gun is buried on the road on the induction coil by calculating vehicle speed to calculate the time of the coil. There is also a small number of more advanced multi-lane continuous shooting speed way, velocimetry way not launch the radar, the first full-band radar will not be able to detect this electronic eye gun, which resulted in GPS anti-speed radar . GPS anti-radar gun does not depend on receiving the radar way to prompt speeding, including the GPS function works like this: pre-save the latitude and longitude of a fixed speed or red light camera data (updates, they would be self-built coordinates) gps positioning, an alarm is triggered when a certain distance close to the target point. Automatically muted when combined with electronic compass can calculate and display the vehicle speed and direction of travel, not can not determine the direction of the trouble, not speeding. These products also contain a large number of traffic information and life, with voice prompts while driving is a good helper, GPS anti-speed radar is good or bad depends on the amount of data and the accuracy of gun point, but such products it has no role in the flow velocity. GPS full-range anti-speed radar will combine the functions of the front by two types of anti-speed radar, both fixed radar gun accurate prediction can forecast the mobile speed, comprehensive solution to the first two types of products inadequate. This anti-speed radar can be divided into two, Main products: car dvd player and car dvd , are with good quality. one, performance is relatively stable, relatively simple to install, the shortcomings must be close to the windshield to place the indoor unit larger. Another more common split, car host, and the front engine cover under the radar machine is a wireless connection between the separate radar and GPS machine, the size of the indoor unit can do the smaller, have no do not have to be placed close to the windshield, good for hiding, and is conducive to anti - theft investigation, but the installation little trouble, this is not much of a problem, look at the manual to understand how matter, really do want to find a vehicle also spend much money. Electronic dog, basically the ability to position, the combination of fixed speed and mobile speed as one of the products.
What,GPS,navigation,anti-speed