journal6 ›› 2005, Vol. 26 ›› Issue (4): 12-14.

• Physics and electronics • Previous Articles     Next Articles

Design And Realization Of Auto Far-Distance Alarm Device Based On DTMF-MT8880


  1.  (1.College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;2.Technical Center of Hunan Province Branch of Agriculture Bank of China,Changsha 410005,China)
  • Online:2005-10-15 Published:2012-09-17

Abstract: A kind of auto far-distance alarm device based on telephone wire is designed and realized.It has the abilities of identifying the moving direction of railroad train,auto fault location of device,alarming and recording alarm information and supervisory controlling.The design of hardware and software and the program of far-distance communication are given.

Key words: alarm device, far-distance communication, direction sensor

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