With the advancement of technology，Car functional design is becoming more and more advanced，As part of a car，The functions of car keys are becoming more and more advanced，The car key has evolved from the previous mechanical key to a remote control key，Can be started with one click，Very convenient。The car key has a practical function besides opening the car，It is also given the meaning of a status symbol，It has become a “weapon” for many people to demonstrate their economic strength。For car keys，Car owners should be familiar with it，However，Many people are confused about the working principle of smart car keys、I don’t know much about the signs of power outage and how to deal with it，Today I will talk to you about car keys~
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How the car key works: The car key mainly consists of two parts: the transmitter and the receiver，Located in the car is the receiver，The key is the transmitter，When we enter the remote control range，Press button，The receiver will demodulate and match，When matching，The car door can be opened。Many cars are now equipped with keyless start systems，So what is the difference between the working principle of keyless start and the working principle of one-button start?Keyless start: Keyless entry means that you do not need to take out the car key to unlock the vehicle，Generally，The driver is required to carry the car key and enter within 2 meters of the vehicle，Trigger the sensor on the door handle with your hand，The anti-theft computer matches the legal vehicle sensor key，You can open the door。Generally，The vehicle can only open two front doors，But on many luxury brand models，All 4 doors can be entered without keys。One-button start: One-button start was originally synonymous with luxury cars，But with the development of the automobile industry、Progress in science and technology，One-click start has begun to extend to family sedans。Currently many models seabet ioare equipped with one-button start。One-click start categories include button type、Knob type and insert knob type。
Signs of a dead car key
Car key batteries generally use 3v button batteries，Because the car key is relatively small，The battery capacity is relatively small，So the stored power is relatively small。Generally, the capacity of a button battery is 200mah，About one twentieth of a Nanfu battery。Generally，The battery in your car remote control lasts two to three years，It mainly depends on the intensity of your use，If you use it more frequently，Then the corresponding power will be consumed faster，The battery will soon fail due to this。When the following symptoms appear on the remote control key，Car owners should pay attention to the low battery of the car key，It’s time to recharge~The remote control key can usually control the vehicle from a distance of more than 20 meters away from the car，If the remote control distance is shortened to less than 10 meters，This means that the battery of the remote control key is low，Thus resulting in a shorter controllable signal distance。This is just like humans，You will have strength when you are full，You will be boring if you are not full。
1
The car remote control distance becomes closer
When the new remote control button is pressed，The indicator light above will be very bright，If you find that the indicator light on the key is getting darker，It also means the battery is low。
2
The indicator light on the key dims or does not flash
It turns out that you can open the car door with just one click，Now it takes several clicks to open，This also means it’s time to replace the battery。
3
Buttons occasionally fail when pressed
In some vehicles，Equipped with remote key battery reminder function。When the car itself detects that the remote key signal becomes weak，Will intelligently display low remote control battery information on the car's dashboard，Thus prompting the owner to replace the battery。
4
The instrument panel prompts that the remote control key has low battery
Ordinary keys do not have this function，Generally found on luxury cars，Some luxury cars have a small screen on the car key，When the battery is dead，The screen will prompt the owner to replace the battery。
5
Remote control displays battery replacement
For convenience of ordering，Many restaurants use mobile devices - ordering machines。But，If the ordering machine is a Sanwu shoddy product，The frequency band used easily overlaps with that of the car remote control key。When the car leaves these areas，The remote control key returns to normal，As a result, some car owners dare not park on this roadside。
Where the car key remote control is prone to failure
1
Restaurant area
Many units and communities use electric telescopic doors，When the telescopic door is operated by remote control，Will continue to emit radio waves in a specific frequency band，Easy to interfere with smart car keys。
2
Electric retractable door
If the anti-theft alarm fails，Will continuously emit radio waves of various frequency bands，Wide interference。
3
Anti-theft alarm
If the large outdoor electronic screen fails，Easy to form a source of interference。
4
Electronic screen concentration area
Substations or high-voltage lines are subject to strict technical restrictions，Generally, radio wave radiation does not exceed the standard。Unless a specific failure occurs，Will cause signal interference。Warm reminder: The frequency bands used by each car series are different，So the situation of encountering interference is also different。If the key is lost，Key-operated manual switch lock。Also，More in electronic equipment、In places where the situation is more complicated, it is best to use a mechanical key to lock the car，Just in case。
Precautions for using car keys
You should pay attention to the following 5 points when using the car key:1.Do not keep car keys with electronic products that contain radiation，Because the smart key uses low-intensity radio waves，Very susceptible to magnetic field interference;2.Do not throw car keys around or subject them to mechanical shock，The chip of the smart key is very fragile，Any beating may cause damage to the car key，Cannot be used normally;3.Smart key cannot enter water，Otherwise it is easy to be damaged by short circuit。Once water enters, immediately lay it flat and blow dry with a hair dryer;4.Do not leave spare keys in the car，The spare key is usually also a smart seabet mykey，Will affect the normal operation of the system;5.Smart keys cannot be placed in high temperature environments，When replacing the battery，Don’t use the wrong battery model，Otherwise it is likely to burn out the circuit board。Small car key，The function is not simple，Smart and convenient，There are many ways to do it。Every car owner must carefully understand its functions and usage precautions when using a smart car key，Use car keys safely，Make travel safer、More smoothly。(The content comes from the Internet, if there is any copyright involved, please contact us to delete it)
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