Basic knowledge of electronic dog products

For some car friends, may not need GPS navigation systems, because there are signposts on the road, you can through your mouth to ask, without the use of navigator guidelines roads. But for a variety of electronic eye on the road, which the driver dare say I do not have time for speeding, no one illegal  Everyone has a negligence, too fast, to catch a traffic signal lights are common, believe it will receive a white letter of the transport team, followed by the coming Authority to pay to the family altar who the money is not in vain, illegal not just bring a fine, sometimes violation will lead to traffic accidents, and even life-threatening.

    Since the electronic dog products on the market, a lot of problems to some extent, been resolved. Like fixed speed warning and mobile speed warning can be electronic dog search to, and can provide early warning information to the driver to allow the driver to adjust the speed, pay attention to safety. But now on the market do the manufacturers of electronic dog a lot, do not know how to pick. There are a lot of people do not understand the electronic dog this small series to find a lot of information to the home electronic dog can later choose electronic dog help.

    In fact, the electronic dog should be called the security warning instrument, a vehicle electronic devices, the role is installed in the car, can be detected within a certain distance around the radar speedometer when the car close to the radar gun, the safety warning instrument will sound the alarm in advance to remind owners of the electronic eye or the existence of the speed radar to prevent speeding or violations fines and demerit points to allow motorists to prepare for fun driving since laws do not prohibit or allow the definition.

    Early electronic dog is a wireless signal receiver, not as electronic dog lower than the principle of the radio and cost. Manufacturers electronic eyes fixed speed sites for installation of a radio transmitter, where the characteristics of the route, made a radio signal containing the information code on the road, the car near here, the receiver receives a radio signal transmitter, decoding the type of alarm, sound chip, a voice alarm, such as road speed limit, this junction electronic eye.

    Actually paved S coil will not produce a signal, usually the manufacturer of the transmitter pre-planted in the 300-1000 meters from a stationary camera before passing through the section of the car is equipped with voice-based AWACS can receive an early warning signal . The advantages of electronic dog is a low cost, its shortcomings are very prominent:

    1, regardless of the camera is really at work, the signal transmitter will send a signal for drivers in terms of false positives.

    2, if all the traffic lights are fitted with an electronic eye, electronic dog will bark incessantly, not only the loss of an alarm significance, but also very noisy.

    3, due to changes in the road,Main products: car dvd player and car dvd , are with good quality.  the fierce business competition, vendors each other to destroy each other transmitters or transmitter battery is depleted, the AWACS will not generate an alarm, will cause tremendous losses to consumers, so be especially careful of such commodities.

    4 also requires the use of radio frequency without the Authority's approval, but the P-frequency and there is no approval, it will be no Authority to detect vehicles detected at any time can be banned or interfere.