1. The common types of electronic dog
All electronic dog products are collectively referred to anti-gun radar, but the name on the product packaging standards for the safe autopilot or radar warning device.
After Zhongguancun research for such products will be divided into the following types: a vehicle speed full full-range radar is accompanied by anti-radar gun produced by use of a large number of devices, according to the received radar speedometer the reflected wave of the frequency shift amount calculated to derive the speed of movement of the object.
(a small number of fixed speed used in this way) radar guns widely used in urban traffic, mainly used to measure whether the vehicle is speeding, two kinds of fixed and mobile points, a fixed mounting on the bridge or crossroads flowing generally mounted on patrol.
all-trans-speed radar frequency is close to the driver whether a reminder has Radar equipment installed in the vehicle, by receiving the radar waves can be detected whether the radar gun around within a certain distance. In the exercise of the car, when the car approaches the speed radar anti Radar warning will be issued, to hear the warning deceleration 2,3 seconds with a normal range 100-300 m is sufficient. Full-frequency-band radar can receive all signals, the main receiver produced in the mainland rarely, mainly from Taiwan, or imported from the Philippines, South Korea, each manufacturer of radar signal frequency emphasis is different, so it is difficult to determine the specific good or bad.
GPS World approximately 80% or more is used in urban speed pressure sensing coils speed mode, the speed of this manner is buried in the road surface on the induction coil, calculated by the time the vehicle speed of the vehicle is calculated through the coil.
as well as a small number of more advanced multi-lane speed continuous shooting mode, these methods are not emit radar gun, the first wide-band radar will not be able to detect this speed electronic eye.
This raises the GPS anti-gun radar, this anti-radar gun does not depend on receiving a radar way to prompt speeding, GPS function works like this: the pre-stored fixed speed or red light camera’s latitude and longitude data (This update is, they would be self-built coordinates), by gps positioning, as close to the target point by a predetermined distance when the alarm is triggered.
binding electronic compass and display the calculated vehicle speed and the traveling direction of the vehicle, there will not determine the directionality problems can be automatically muted when not overspeed.
These products also contain a lot of information and live traffic information with voice prompts, is a good helper when driving, GPS anti-speed radar gun point is good or bad depends on the amount of data and accuracy, but such products for mobile speed has no effect.
GPS GPS full-range full-range anti-speed radar combines the first two types of anti-speed radar functions, both accurate prediction of fixed radar gun, but also to predict the flow of guns, a comprehensive solution to the first two lack of products.
Such anti-speed radar can be divided into two types, one is the one-piece, stable performance, installation is relatively simple, the disadvantage is required close to the windshield is placed, a larger volume of the indoor unit. The products on the market more common are: Wei Keda V6, T90, 606 prophet.
Another split is more common, and the radar unit is a wireless connection between the host vehicle at the vehicle front hood, since the separate radar and GPS unit, the volume of the indoor unit do smaller, no do not have to be placed close to the windshield, good for hiding, in favor of anti-theft investigation, but install a little trouble a little, this is not much of a problem, the leaflet should understand how it is, really do want to find their own the repair can not spend much money.
GPS navigation map navigation functions to link up with anti-gun, a machine can achieve. Most navigation map navigation software company is also adding a lot of gun-point data, ordinary GPS navigator also has anti-gun radar functions, from electronic dog point of view, is anti-gun radar GPS navigation. Many manufacturers, the anti-speed navigation and full-frequency radar together, a navigation + + fixed flow triple function.