Optical-electricity Detection System Base On Embedded Operating System

With the development of modern technology, Optical-electricity technology has been applied to widely. To meet the need of modernization detection, a kind of optical-electricity detection technology system based on embedded system is studied.The system designs a kind of circuit that can collect eight analog signals detected and converted from lamp-house. Each signal is separated to two beams. One is detection signal, the other is reference signal (It is from lamp-house itself). This kind of circuit not only can detect many parameters, but it can improve the system's precision.the article adopts embedded operating system to design a suit of optical-electricity detection technology .By contrast, the system is developed based on ARM7 PHILIPS·LPC2114 and μ C/OS- Ⅱ.Configuration data and code is in separated embedded operatingIn MCU system based on embedded operating system, because correlative code and data restricts the system's all-purpose character and maintainability at first hand, separating configuration data and code can improve the system's character of independence.A policy of time-limited Service is put forwardWhen the software of embeded Operating System is running, computer stops suddenly appears frequently. Time-limited Service restricts the time running of those duties to be avoided thus things. When the time of the running overruns, the duty is forced to hand in the right of possessing CPU.The last part of the thesis summarizes the optical-electricity detection system based on SCM and put forward the direction of further research of this subject.