This is the infrared thermal release alarm based on First introduced the development history， infraredtechnology application， development trend and researchsignificance; then analyzed the basic principle of infraredalarm system， and comprehensively introduces theimplementation of SCM infrared heat release alarm systemneed based hardware and software; then introduces the implementation of SCM infrared thermal release alarmsystem hardware circuit design and software structurebased design; finally， test and analyze the performance of the whole The whole system is divided into hardware design and software design of two Using the hardware part of the STC89C52 microcontroller， infrared probe， and the alarm circuit， LED control circuit and other components;software and hardware environment of choice is This system uses the pyroelectric infrared sensor， it has the advantages of simple manufacture， low cost， installation is convenient， and the anti-theft performance is relatively stable， strong anti-interference ability， high sensitivity， safe and This kind of security installmenthiding， not easy to be found by thieves， the signal processed by SCMis convenient and PC communication， to facilitate unified user Keywords: single chip; infrared sensor; alarm circuit;百度翻译的别打我
"CPC Central Committee and State Council on deepening the education reform to fully implement the decision of the quality of education，" pointed out: lack of aesthetic education is not complete School of music education is an important component of Because music education in primary and secondary schools to train students in the emotion， imagination and individuality， on the ideological and moral qualities， scientific and cultural qualities of the increase has a positive 2002， by the State Ministry of Education set of "full-time music education curriculum standards (experimental version)"， is China's primary and secondary school music education has entered a new stage of development of an important symbol， which makes China's music education were developing rapidly， Music Education position is gradually Enter the classroom has become instrumental music teaching to deepen the reform of a major Instrumental Music Education Teaching is an important component of the practice is a strong educational content， it will not only train students played music fun The role， but also comprehensive knowledge of music students to enhance the capacity of developing musical vision， and guide students toward instrumental step into the magical colorful music
