The Research And Design Of STD-1 System

According to requirement of "high-yield food science and technology Projects" of the "11^th Five-Year Plan" with national scientific and technological support, focusing on grain stockpile problem in rural areas, The paper presents a new physical method to expel and eradicate rodents by virtue of pseudo-random astatic rotary electromagnetic field radiation. And it describes how to develop a set of pseudo-random astatic rotary electromagnetic field radiation control system (STD-1) , which is used in large and medium-sized grain depot.First, the paper analyses the injury influence of electromagnetic field radiation to the reproductive, the central nervous system, learning and memory capacity of rodents, basing on lots of biomedical experiments and data. And then the frequency and intensity range of ELF is confirmed, which lays a theoretical foundation for the study of the system.The paper divides into three parts to describe how to design STD-1 equipment. The content contains signal source module, adaptive occlusion coding module and radiation controller three-specific module.In the research and design of pseudo-random astatic rotary electromagnetic field radiation control system (STD-1), pseudo-random broad-spectrum composite frequency signal source is used as man-made signal for the first time to realize expelling and eradicating rodents in grain storage environment .In the research and design of signal source, the key technology of the nature of broad spectrum, the same initial phase, and multi-frequency synchronization sending has been researched. Adaptive control coding has also been designed in the control system. Radiation controller module describes the theory of electromagnetic, and analyzes antenna radiation in the low-frequency electromagnetism, and designs a kit of grounding dipole radiation device as patented invention, and simulates the data in computer.Finally, the apparatus is debugged. The testing results show that the pseudo-random astatic rotary electromagnetic field has achieved the design requirements.