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There are two types of encoding methods commonly used in remote control
Release time：
2023-03-23 16:52
source：
There are two types of coding methods commonly used in radio remote control, namely rolling code and fixed code
Rolling code:
1. Strong confidentiality, the code is automatically changed after each launch, and others cannot use the "code detector" to obtain the address code;
2. The coding capacity is large, the number of address codes is greater than 100,000 groups, and the probability of "duplicate codes" in use is extremely small;
3. The code is easy to match. The rolling code has the function of learning and storing. It does not need to use a soldering iron. The code can be matched at the user's site, and a receiver can learn up to 14 different transmitters, which has a high degree of flexibility in use;
4. The error code is small. Due to the advantages of coding, the error action of the receiver when it does not receive the local code is almost zero.
Fixed code:
1. The coding capacity of the fixed code is only 6561, and the probability of repeated codes is extremely high. The code value can be seen through the solder joint connection.
2. It can be obtained by using a "code detector" in the field of use. It does not have confidentiality. It is mainly used in occasions with low confidentiality requirements. Because of its low price, it has also been widely used.
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