| The trend that system develops in large scale with being in progress , traffic being modernized is extremely prompt. Since city high-speed railway traffic system (include the subway and the overhead quick city track) has luck amounts are big , speed is quick , safety is reliable , already become the traffic jam resolving a city and cut down one kind of effective means contaminating to environmental pollution merit such as small , not occupy the general road. Besides, quick systematic high-speed railway traffic construction composes in reply cost being in motion and doing business being lower than a subway over, therefore many city is preparing to establish high-speed railway traffic system actively. To overhead high-speed railway system,when running the fast track train, train speed , vehicle weight , factors such as train and the road surface coactions are able to shake an effect to roadbed creation , thereby, the roadbed using fluffy section of an area produces direction displacement, this will be able to affect the train and personal safety. Therefore real time the change monitoring roadbed direction displacement and the environment humiture, has important significance to systematic safety of quick guarantee high-speed railway traffic.Time of problem adopt the MSP430F1XX series monolithic machine to be unnatural MCU of data collect. The MSP430F1XX series monolithic machine is one kind of 16 monolithic machine , it has integration level height , ancillary equipment merit such as enriching , surpassing low-power consumption, especially, its ultralow power dissipation characteristic property , is that other monolithic machine is not allowed to comparison at present. Another , the MSP430F1XX series monolithic machine support assembly language and C language to carry out exploitation , can improve the efficiency developing greatly , shorten a construction cycle, and have very good readability and transplanting. 3rd chapter of the main body of a book has done detailed introduction. |
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