Mgmt

Hot Axle and Hot vagabond detector (HAHW) software system ruin and Hardware selection criteria The interest document explains the various packet system modules of HAHW and its functionalities Contents 1. proper(postnominal) points for the selection of the Hardware 2. HAHW Software Block diagram 3. liquefy chart of complete Software & each software modules 4. write up or so the software. 5. calibration of detector 6. HAHW Prototype 7. Testing of prototype 8. Areas for further work 1. Specific points for the selection of the Hardware Temperature sensor Requirements Temperature quantifyment should be of non tinct type. Minimum response era should be 22?s to measure at least(prenominal) 20 temperature points in two hundred mm portion of axle or roulette wheel for 160kmph train. Temperature escape of the sensor should be from 50C clC for axle and 50C - 250C for wheel to measure unfit axle and breaking wheel. The operation temperature should be minimum close temperature 10C to maximum ambient temperature 55C. potential or current output sensor is prefer competent. The pyrometer TMS35 was selected for the following reasons Non clashing temperature monitoring Temperature measurement ranges 50 one hundred fifty° C for axle box and 50 300 ° C for wheel. Temperature resultant role < 1° C Time unvaried < 0.

1 msec. Ambient temperature operate -40 +70° C Output signals 4 20 mA. It has two status signals to delegate its temperature and the state of pyro. Trigger Sensor Requirements It should adequate to(p) to sense the wheel of 160kmph train. It should be water proof and dis pointed to survive the vibration of the track. Output of the sensor should be digital. Pepperl puchs (NJ50-FP-A-P1) with the mentioned precondition solves the purpose run voltage 10-30 V Switching absolute frequency 0-100 Hz Assured operating surmount 0-40.5 mm...If you want to get a full essay, order it on our website: Orderessay

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