Excuse me, can the electronic dog really measure the flow and set the speed?

Electronic dogs can measure flow and fixed speed.

There are two kinds of electronic dogs:

1, DSA electronic dog:

The working principle is GPS positioning; Mainly used for fixed speed measurement, traffic lights, high-speed exit tips, etc. Usually used in combination with navigation.

2. radar detectors electronic dog;

The working principle is to realize the early warning by receiving the electromagnetic wave sent by the speed measuring radar in real time, which is the second application of Doppler theorem. It is mainly used for processing radar velocity measurement and microwave radar velocity measurement. Whether stationary or mobile. But the current mobile speed measurement is mostly radar speed measurement, so many people misinterpret it as mobile electronic dog.

Electronic dog, also known as driving safety warning instrument, is a kind of vehicle-mounted equipment, which consists of hardware system and software system, including radar, GPS positioning, central processor and intelligent speed warning system. Mainly use GPS satellite positioning and radar signal retrieval to remind the owner of the existence of speed measuring equipment such as electronic eyes or speed measuring radar in advance to prevent being fined and deducted for speeding and other violations. It is divided into ordinary electronic dogs, intelligent electronic dogs and cloud electronic dogs.

References:

Electronic dog-Baidu encyclopedia