Editor's note: With the development of science and technology, "intelligence" is a trend. Mobile phones and computers have become indispensable elements for people. Private cars have gradually been added to the team. Intelligent realization of the car is a part of this. Recently, an RFID keyless starter system was introduced to allow car dealers to enter the real "intelligence."
working principle
The common keyless entry system, also called the smart key system, is composed of a transmitter, a remote central lock control module, a driver authorization system control module, and three receivers and associated harnesses. The remote controller and transmitter are integrated in the car key. The vehicle can enter the locked or unlocked state according to the signal sent from the smart key, and can even automatically close the window and sunroof.
This system uses RFID (radio frequency identification) technology, usually, when the owner approaches the vehicle within about 1 meter, the door lock will automatically open and lift theft; when leaving the vehicle, the door lock will automatically lock and enter the anti-theft state . When the car owner enters the car, the car detection system will immediately recognize the smart card. At this moment, you can start the car normally only by gently pressing the start button (or knob). The car key does not have to be taken out during the entire process.
Costly
Equipped with a "keyless entry system" will definitely bring about a certain increase in the cost of the vehicle. In addition, if the key is lost, the cost of re-keying the key is not cheap. Smart keys generally include an electronic key and a mechanical key. When the electronic key is dead or cannot be used due to a malfunction, the user can also use the original mechanical method to start the vehicle. Once the entire smart key (including the electronic key and the mechanical key) is lost, it is necessary. Reconfigure the new electronic key, and the remaining spare key will also be invalidated and need to be replaced at the 4S store. In addition, the mechanical key provided for the emergency actually has an ID code built in. The part of the teeth that can be copied is not able to start the vehicle, but the teeth can be used to open the door. Therefore, if the mechanical key is lost, it is best to replace the entire vehicle lock. It's not just about replacing the price of a key.
Integrated three functions
The keyless entry system includes three basic functions of automatic unlocking, smart ignition and identification of the owner. Some brand models also have the function of automatically closing the windows after locking the car.
Function is automatically unlocked
The sensor automatically switches the door locks in the smart card carried by the owner. When the owner approaches the car, the key and the car begin to exchange the set command information through radio waves. The car's shutdown system and safety system and the engine's control system are all activated. In other words, when you approach the vehicle a certain distance (usually 1 meter) the door lock will automatically open and release the anti-theft; when you leave the vehicle, the door lock will automatically lock and enter the anti-theft state.
Function two intelligent ignition
Usually, the driver needs to insert the key into the ignition key hole of the car to start the engine. The smart keyless start-up method makes this easier. The function of the smart key is to make the engine recognize whether the operator is the owner and enter the standby state before starting at any time. When the engine needs to be started, as long as the smart key is in the area that can be detected, the driver can press the start button or twist the spin button to start the engine.
Feature 3 identifies owners
Each smart key has a unique ID code that corresponds to the vehicle ID code. Even if you simply copied the key, you cannot start the vehicle without an ID code. Only when the owner enters the car, the car's detection system will immediately recognize your smart card. After confirming that the car's internal computer will enter the working state, just press the start button (or knob) in the car gently. , you can start the vehicle normally.
Reminder 5 "Do not"
Do not put together with electronic devices
Because smart keys use low-intensity radio waves, they may not work properly in the presence of magnetic field interference. Often placing a smart car key with a mobile phone will inevitably lead to the failure of the smart car key, because the smart key chip is sometimes disturbed by the mobile phone frequency, which may cause the key remote control function to malfunction temporarily. In addition, if the smart key receives high-intensity radio waves, it may excessively consume battery power. Therefore, do not place smart keys near electronic devices, such as televisions or personal computers.
Don't throw it around
For the smart key, the most afraid is to fall to the ground from high altitude, because most smart key shells are relatively strong, while the internal lines have weaker impact resistance and are easily damaged in the event of a violent collision. In addition, the smart car key will burn the internal circuit after entering the water, which will also cause remote control failure. Therefore, once you have a smart car key in the water, do not throw it with your keys. This will make it easier for water to flow to other important lines, and it should not be unlocked with a remote control immediately, as this may cause the board to burn out. The correct approach is to open the car key shell and blow it dry with a hair dryer, and then send it to the maintenance shop for inspection. Also note that the smart key must not be exposed to high temperature direct conditions, such as on dashboards or hoods.
Do not put spare keys in the car
If the car keys are not properly kept, it will bring a lot of troubles, especially the smart car keys. If it is lost, it will not only need to be re-created, but also must be re-matched with the computer.
Unlike general mechanical keys, the smart key is not a car key because it involves the anti-theft technology of the vehicle. Simply build one and continue using it. It is understood that each manufacturer has developed strict keyless opening doors and keying procedures for its after-sales service department. Therefore, the owner is reminded to protect the spare keys as much as possible. Do not put spare keys and current keys together. Do not Put spare keys in the car.
Do not use the wrong battery
The battery life of smart car keys is about 1 year. Because the frequency of use of the car keys is different, the consumption of the batteries is also different; when the car keys are used at different distances, the amount of electricity consumed will be different. Replacing the battery with the key of the smart car is very careful. Once an error occurs, the circuit board in the key will burn out. Before the replacement, the main vehicle first to see the battery replacement diagram, when you open the key, pay attention to the location of the parts originally placed, try to choose the original battery; in the installation to carefully identify the positive and negative battery, do not misplace At the same time, pay attention to the seal ring at the bottom of the key, and do not damage it during the replacement, otherwise it will burn the circuit board.
Do not touch metal objects
Many female owners like to fall in heavy accessories on the car keys. Some male owners even have a large number of other keys. As everyone knows, in the bumpy jump of a car, excessive falling objects on the key will cause wear on the limit elements and contact points of the switch by the lock cylinder, resulting in looseness and premature damage, which may cause the engine to fail to start over time. In the spirit or driving, due to power off and turn off. What's more, if it is put together with other keys, the key is a metal product, the smart key may be in contact with metal objects or covered by metal objects.
working principle
The common keyless entry system, also called the smart key system, is composed of a transmitter, a remote central lock control module, a driver authorization system control module, and three receivers and associated harnesses. The remote controller and transmitter are integrated in the car key. The vehicle can enter the locked or unlocked state according to the signal sent from the smart key, and can even automatically close the window and sunroof.
This system uses RFID (radio frequency identification) technology, usually, when the owner approaches the vehicle within about 1 meter, the door lock will automatically open and lift theft; when leaving the vehicle, the door lock will automatically lock and enter the anti-theft state . When the car owner enters the car, the car detection system will immediately recognize the smart card. At this moment, you can start the car normally only by gently pressing the start button (or knob). The car key does not have to be taken out during the entire process.
Costly
Equipped with a "keyless entry system" will definitely bring about a certain increase in the cost of the vehicle. In addition, if the key is lost, the cost of re-keying the key is not cheap. Smart keys generally include an electronic key and a mechanical key. When the electronic key is dead or cannot be used due to a malfunction, the user can also use the original mechanical method to start the vehicle. Once the entire smart key (including the electronic key and the mechanical key) is lost, it is necessary. Reconfigure the new electronic key, and the remaining spare key will also be invalidated and need to be replaced at the 4S store. In addition, the mechanical key provided for the emergency actually has an ID code built in. The part of the teeth that can be copied is not able to start the vehicle, but the teeth can be used to open the door. Therefore, if the mechanical key is lost, it is best to replace the entire vehicle lock. It's not just about replacing the price of a key.
Integrated three functions
The keyless entry system includes three basic functions of automatic unlocking, smart ignition and identification of the owner. Some brand models also have the function of automatically closing the windows after locking the car.
Function is automatically unlocked
The sensor automatically switches the door locks in the smart card carried by the owner. When the owner approaches the car, the key and the car begin to exchange the set command information through radio waves. The car's shutdown system and safety system and the engine's control system are all activated. In other words, when you approach the vehicle a certain distance (usually 1 meter) the door lock will automatically open and release the anti-theft; when you leave the vehicle, the door lock will automatically lock and enter the anti-theft state.
Function two intelligent ignition
Usually, the driver needs to insert the key into the ignition key hole of the car to start the engine. The smart keyless start-up method makes this easier. The function of the smart key is to make the engine recognize whether the operator is the owner and enter the standby state before starting at any time. When the engine needs to be started, as long as the smart key is in the area that can be detected, the driver can press the start button or twist the spin button to start the engine.
Feature 3 identifies owners
Each smart key has a unique ID code that corresponds to the vehicle ID code. Even if you simply copied the key, you cannot start the vehicle without an ID code. Only when the owner enters the car, the car's detection system will immediately recognize your smart card. After confirming that the car's internal computer will enter the working state, just press the start button (or knob) in the car gently. , you can start the vehicle normally.
Reminder 5 "Do not"
Do not put together with electronic devices
Because smart keys use low-intensity radio waves, they may not work properly in the presence of magnetic field interference. Often placing a smart car key with a mobile phone will inevitably lead to the failure of the smart car key, because the smart key chip is sometimes disturbed by the mobile phone frequency, which may cause the key remote control function to malfunction temporarily. In addition, if the smart key receives high-intensity radio waves, it may excessively consume battery power. Therefore, do not place smart keys near electronic devices, such as televisions or personal computers.
Don't throw it around
For the smart key, the most afraid is to fall to the ground from high altitude, because most smart key shells are relatively strong, while the internal lines have weaker impact resistance and are easily damaged in the event of a violent collision. In addition, the smart car key will burn the internal circuit after entering the water, which will also cause remote control failure. Therefore, once you have a smart car key in the water, do not throw it with your keys. This will make it easier for water to flow to other important lines, and it should not be unlocked with a remote control immediately, as this may cause the board to burn out. The correct approach is to open the car key shell and blow it dry with a hair dryer, and then send it to the maintenance shop for inspection. Also note that the smart key must not be exposed to high temperature direct conditions, such as on dashboards or hoods.
Do not put spare keys in the car
If the car keys are not properly kept, it will bring a lot of troubles, especially the smart car keys. If it is lost, it will not only need to be re-created, but also must be re-matched with the computer.
Unlike general mechanical keys, the smart key is not a car key because it involves the anti-theft technology of the vehicle. Simply build one and continue using it. It is understood that each manufacturer has developed strict keyless opening doors and keying procedures for its after-sales service department. Therefore, the owner is reminded to protect the spare keys as much as possible. Do not put spare keys and current keys together. Do not Put spare keys in the car.
Do not use the wrong battery
The battery life of smart car keys is about 1 year. Because the frequency of use of the car keys is different, the consumption of the batteries is also different; when the car keys are used at different distances, the amount of electricity consumed will be different. Replacing the battery with the key of the smart car is very careful. Once an error occurs, the circuit board in the key will burn out. Before the replacement, the main vehicle first to see the battery replacement diagram, when you open the key, pay attention to the location of the parts originally placed, try to choose the original battery; in the installation to carefully identify the positive and negative battery, do not misplace At the same time, pay attention to the seal ring at the bottom of the key, and do not damage it during the replacement, otherwise it will burn the circuit board.
Do not touch metal objects
Many female owners like to fall in heavy accessories on the car keys. Some male owners even have a large number of other keys. As everyone knows, in the bumpy jump of a car, excessive falling objects on the key will cause wear on the limit elements and contact points of the switch by the lock cylinder, resulting in looseness and premature damage, which may cause the engine to fail to start over time. In the spirit or driving, due to power off and turn off. What's more, if it is put together with other keys, the key is a metal product, the smart key may be in contact with metal objects or covered by metal objects.