針對目前汽車追尾事件頻發問題,提出一種防汽車車前和車后追尾的安全裝置設計。該設計以高性能、低功耗的8位AVR微處理器ATmega8L為核心,結合霍爾式車速傳感器、激光雷達測距裝置和MMA7260QT加速度傳感器,能夠兼顧車前和車后,摒棄以往設計中只考慮車前或車后單一性缺點,尤其適用于高速、夜晚或新手行車。
Abstract:
Aiming at the high frequency of vehicle rear-end collision,a safe device design of anti-vehicle rear-end collision is presented.In the design,the high-performance,low-power8-bit AVR microprocessor ATmega8L is utilized as a core combined with Hall-type speed sensor,laser-radar ranging devices and the acceleration sensor MMA7260QT.The design considers both the front and back of a car,and overcomes the drawbacks of former designs in which only the front or the back of the car is considered,so it is especially suitable for high-speed,night or the beginner’s driving.
實時時鐘是微機保護裝置的重要部件,在討論PCF8583結構與功能的基礎上,提出采用dsPIC33F系列微處理器與串行I2C時鐘PCF8583的接口設計方案,給出了相應的接口電路與軟件流程。該設計方案結構簡單,可靠性高,開發周期短,具有一定的實用與參考價值。所設計的微機保護裝置已投入現場運行,效果良好。
Abstract:
Real-time clock chip is an important part in microcomputer protection device.Based on discussing the structure and function of PCF8583,a new interface scheme which uses dsPIC33F microprocessor and serial clock chip(I2C)PCF8583is proposed.The method of the circuit design and the main software flow are introduced in this paper.The scheme has simple structure,higher reliability and shorter exploitation cycle,so has definite practicality or reference value.The microcomputer protection device has been put into operation with better effects.
提出了一種基于C8051F320的列車安全巡檢儀的設計方案,詳細闡述了巡檢儀的各個模塊的硬、軟件設計。巡檢儀集信息采集、軸溫檢測、照明和記錄存儲等功能于一體,實現了對列車安全巡檢工作有效的監督和科學管理。系統軟件采用C51編寫,對單片機進行有效的電源管理,保證了巡檢儀的穩定性、可靠性和低功耗性。
Abstract:
This paper puts forward a design of train safety inspection based on C8051F320,describes all modules hardware and software design of inspection instrument.The inspection instrument has the function of information collection, axle’s temperature detection, lighting and records storage.It can supervise and administer train safety inspection work effectively.The system software using C51 can manage the power of single chip microcomputer, and guarantee the stability, reliability and low power consumption of the inspection instrument.
介紹了電力操作電源與智能電池巡檢系統的特點,給出了一種基于超低功耗單片機MSP430 F149針對中小型變電站自動化運行的專用設備的基本設計原理及實現方法,最后給出了詳細硬件構成和軟件實現。該系統能滿足中小型變電站安全、可靠、自動運行的要求,并通過與上位機的串行通信實現變電站的遠程管理和控制。
Abstract:
The characters of the intelligent battery data logging system of the electric operation power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.