| With the rapid development of using electricity, eletric powerindustry entered a rapid develping period, reading system changedfrom to automation readingmetering reading and concentrated reading.And in reading system, the using of embedded system is becoming ahot issue. And the application of embedded operating system is thedirection of embedded system developing. Embedded operatingsystem is a system which sustaining embedded system application. Itusually contains the bottom drive software, kernel, communicationprotocol and graphical user interface of the hardware. Embeddedoperating system takes charge of distributing, attempering andcontrolling work of all hardware and software, and can achive functionconfiguration by loading or unloading modules, in the person ofcharacter of the system.Load watching system is based on uClinux.The material framework is based on ARM+DSP, and communicatewith tied network of power supply branch by GPRS or 800 MHz High Speed Data Transmission.The framework which using DSP as the measure chip andrunning uClinux in ARM chip, can enhance the running speed andreliability of system. SmartARM2200's running temperature is—45℃～75℃, the memory on the board is large and capabilitycompare price is high, reliability etc. The predominance of uClinux asa embedded system is it can run without MMU, so the kernel is verysmall, is suitable for porting. Porting uClinux to SmartARM2200should dispart two pairs, one is poring bootloader and the other isporting kernel, established a cross compiling entironment. Basing onapplication drivers, empolder application program, such as readingprogram and parsing DL/T645. The application program and mastersoftware and communication machine and Web page layouts make upof the software system.The loading watching system has the characteristic of steadychannels, strong function of gathering data, open, currency and perfectfunction internet applications. The system also provides promulgatingWeb, so the date can be read intuitionisticly. Now the system is testingin Suqian, Jiangsu Province and Ezhou Hubei Province, it will enhanceour management of electric power; the power supply can managepower grid duly, high efficiently and expediently; it will provide essential data for couting reassuring percent and quality of powersupplying. And it run steadily and data transmitted reliably. |
