The radar is a device that uses radio waves to detect the direction and distance of the target."Car Electronic Dog" is a car device, which is to remind the owners electronic eye or speed radar in advance. It can prevent fined and deducting points because of speed or illegal regulations.Driving reminder instrument has not been prohibited or allowed to define.What are the working principles of radar electronic dogs? The following editors are introduced in detail!
Radar electronic dog work principle
① The radish machine is warned in advance by the embedded transmitter.The manufacturer is burying a wireless microwave transmitter where the early warning is needed. This wireless hair body has only a fixed frequency band.At the same time, it also sells the receiver that can only receive this band.Every time consumers buy electronic dogs, after receiving the microwave signal, the machine receives the information of the preset inside to prompt the relevant alarm information.② GPS machine is warned in advance by collecting coordinates by collecting coordinates.It is also the manufacturers coordinates that need to be warned in advance, and stored it in the GPS storage chip in the form of data.When the car is driving, the machine compares the current position and the coordinates collected by the satellite positioning.Calculate the police.
Why does the electronic dog know that there is a gas station in front of the gas station (the gas station is also radar) and can even detect the gas stations and service areas that have not been completed.What waves are, just a bunch of stones.You can know why it calls the police through the above introduction.Regardless of whether the gas station is completed, people must know.① Electronic dog manufacturers can solve problems by buried a radio launch station in advance.② GPS type can only enter a coordinate to the chip.
Speed ??radar original interpretation and analysis
The radar is a device that uses radio waves to detect the direction and distance of the target.The radar is the transliteration of the word Radar in English. This word is abbreviated by the prefixes of the word prefix in the word of Radio Detection and Ranging, which is the meaning of radio exploration and ranging.The world began to become familiar with radar. In the British air combat in 1940, 700 British fighters carrying radar defeated two thousand German bombers and rewritten history.After World War II, the radar began to have many peaceful uses.In terms of weather prediction, it can be used to detect storms; in terms of air sailing safety, it can help leaders and airport air management personnel to complete their tasks more effectively.The principle of radar work is very similar to the reflection situation of sound waves. The difference is that the waves used are that the waves they use are a wireless radio wave with a very high frequency, not sound waves.The radar transmitter is equivalent to the sound cords of shouting, and emit a pulse similar to the shouting sound. The finger of the radar is like a microphone to the antenna, so that the energy of the electrical pulse can concentrate in a certain direction.The role of the receiver is similar to the human ear to receive the back wave of the electrical pulse issued by the radar transmitter.Speed ??radar mainly uses the principle of Doppler Effect: When the target approaches the radar antenna, the frequency of the reflex signal will be higher than the frequency of the transmitting machine;Probability.In this way, the target and radar relative speed can be calculated by changing the value of the frequency.
Lasers English is Laser. This word is made by Light Amplification by Stimulated Emission of Radiation, which means that the amplification effect of light is achieved by stimulating radiation.The light of the light inspired by the laser is the same as the direction of the movement, so the frequency of each beam is equal. In addition, they are tightly arranged, and they are parallel to each other.It will not spread to the far away.In the experiment in 1962, it was found that after the laser launched from the earth after nearly 400,000 kilometers of space journey, it only projected a circle of about three kilometers on the surface of the moon! This characteristic makes the laserIt is more widely used in machining, cutting, carving, and piercing processing and medicine (ophthalmology, dental, and tumor).
Radar electronic dog function introduction
"Electronic Dog" is mainly a device for car navigation. The role is to remind the owner of the owners electronic eye or speed radar in advance.And deduction.
1. Fixed electronic dogs are actually latitude and longitude data, that is, the latitude and latitude of the fixed speed measurement of the fixed speed measurement.Then brush to the software, and then compare the latitude and longitude of the machine through the GPS position. If the collection of latitude and longitude is collected, the software will be broadcast.As for the electronic dogs in the map, they can basically ignore it because it is useless.
2. Fixed electronic dogs are software brushed into the machine or electronic dog software.For example, the machine system of the Yuanfeng scheme has an electronic dog program that can be brushed into the electronic dog data.As long as it starts, the third -party electronic dog software needs to be started manually to run.
3. The flow is divided into two -in -one, which is fixed data+radar probe.Generally speaking, the flow function refers to the mobile radar probe to deal with the speed measurement equipment that can be detected (the number of camera equipment that cannot be detected is solved by fixed data in front).Electronic dogs without GPS generally support navigation schemes.You can report internally (the radar is reported and reported in the navigation machine to see the specific plan).As for the split type, a probe is packed on the front, and a broadcaster is connected to the cigarette lighter without connecting navigation.

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