D. Bhattacharjee, G. Sharma, R. Bera
2015 International Journal on Smart Sensing and Intelligent Systems  
This paper deals with the design of the universal intelligent sensor interface. Incorporating UISI makes the system highly flexible because it gives the freedom of either attaching or detchaing various types of sensor. The front end of the UISI can be configured as per the connected sensor with the help of the TEDS information and the firmware. There are two 10pin connector provided for analog and digital sensors. There are various types of analog sensors. The digital sensor also uses various
more » ... also uses various interfaces such as I2C, SPI and RS232. The detail about the type of sensor and interface it uses is stored in TEDS. Index terms: UISI, conditioned sensor, unconditioned sensor, resistive sensor, SPI interface, I2C interface, RS232 interface, sensitivity, linearity. VH 5.0±0.2V AC or DC Resistive VC Max. 24V DC only Ps≤15mW Carbon monoxide(CO) MQ 7 SnO2 VH (high)5.0 VH(low) 1.4v AC or DC Resistive Carbon monoxide(CO) TGS 5342 Electrochemicaltype Not required 0.7~1.4nA/ppm Oxygen SK 25F galvanic cell Not required 0 to 10 mv 0 tt 30% oxygen
doi:10.21307/ijssis-2017-855 fatcat:tjkej7a7trfijgilux7x5eweri