Welcome Tianchang Meitong electronic co.! Main products: remote control, monitoring power supply
Meitong Electronic Co., Ltd.
popular keywords:
contact us
address:Second industrial area, Tianchang Qinlan Town, Anhui Province
phone:0550-7815253 7816466
fax:0550-7816321
mail:sales@meitone.cc
post encoding:239341
Technical support
Technical
Wireless remote control features

The carrier frequency of the wireless remote controller for 315mHz or 433mHz, the remote control is the use of the state of the opening bands, in this frequency range, the transmit power is less than 10mW, the coverage is less than 100m or less than the units, can not through the "radio management committee approval and free use. China's open band provisions for the 315mHz, while the European and American countries, such as the provisions of 433mHz, so exports to the country's products should use the 433mHz remote control.

Wireless remote control is the use of radio waves to send control signals, it is characterized by a non directional, can not "face to face" control, distance (up to tens of meters, or even a few kilometers), vulnerable to electromagnetic interference. The use of radio remote control is easier to solve, such as industrial control and so on, which requires long distance transmission or non directional control.

The radio remote control of the encoding mode of two types, namely fixed code and rolling code two, rolling code is fixed yards of upgraded products, at present all the secrecy requirements of the occasion, use rolling encoding.

The coding method of the rolling code has the following advantages:

1, security, after each launch automatically replace the encoding, others can not use "the criminal code" get address;

2, the coding capacity is large, the number of address code is greater than 100 thousand groups, the use of the "code" of the probability is very small;

3, the code easy, rolling code with learning memory function, need not use solderingiron, can at the user's site to code, and a receiver can learn into as many as 14 different transmitters, with a high degree of flexibility in the use of;

4, the error is small, due to the advantages of coding, the receiver in the absence of the error of the machine code is almost 0. Fixed code encoding capacity is only 6561, weight code probability is great, the encoding value can be connected through the solder joints that way, or is to obtain "the criminal code" field, so do not have the secrecy, confidentiality is mainly used in less demanding occasions, because the price is so low it has been applied.


Comments

Comment

user name Name
Comments Comment

verification code
return to the top