Desing Of Remote Control Without A Spoonful Of Entrance Guard System Based On The Rolling Code Technology

With the increase of the wealth accumulation, living standards are improving, people are also more and more high to the requirement of intelligent entrance guard system, not only request to switch lock structure should not be simple, the intelligent entrance guard system is more requirements. Rolling code technology and the combination of radio frequency technology make remote access system more humanized.Remote control based on the technology of rolling code without a spoonful of entrance guard system design, this paper designed a kind of security, stability good remote access system, implements simply press the remote control to switch lock. Rolling code technology is a kind of change, resistance to intercept the encryption technology, high reliability, it uses encryption to decrypt algorithm of nonlinear, makes coding has variability, ensure the safety of compiled code.This paper details the design of software and hardware research, hardware mainly introduces the remote HCS300password, code generation, radio frequency transmitting circuit, receiving module and software decoding circuit, etc.; Software mainly introduced the KEELOQ algorithm, learning mode and its difference analysis, collision of radio frequency identification algorithm and collision algorithm, etc. Data in the process of transmission, inevitably occur error and external disturbance, so it should be self-correcting ability and anti-interference ability. Summary of the design, put forward some improvement, prospects the development prospect of the intelligent entrance guard system.