Research on High Precision pH Sensing Device Based on Cloud Platform Service

  • Zhiyue Shang
  • Xin Zhang
  • Cheng Zeng
  • Yuanfang Yao
  • Yunlong Bu
  • Yu Cai
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 509)


This project tries to design a wireless intelligent pH sensor to monitor the pH value of nutrient solution in real time by using the analog front circuit LMP91200, microprocessor STM32F103c8t6 and WiFi module. The experiment shows: this equipment has a high accuracy, can be 0.01; it can access business cloud services platform to achieve the functions like accurate acquisition and calibration of pH value, Interactive with cloud platform through WiFi Networks; APP and PC for the remote measurement is stable, after 12 h of testing there is no packet loss phenomenon; Because of high uploading speed, in 5 s it can complete the device networking and upload, besides, the cloud services have changed the traditional way of nutrient solution measurement.


WiFi sensor pH measurement Cloud services Internet of Things (IOT) High precision 



Funds for this research was provided by the National High Technology Research and development program (863 Program, 2013AA103005), and the Science and technology innovation ability construction project of Beijing Academy of agriculture and Forestry Sciences (KJCX20140203), and the Construction project of Beijing Municipal Engineering Laboratory of Agricultural Internet of things (KJCXPT2016-25), and the Beijing Municipal Science and technology project (D151100003715002).


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Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Zhiyue Shang
    • 2
  • Xin Zhang
    • 1
  • Cheng Zeng
    • 2
  • Yuanfang Yao
    • 1
  • Yunlong Bu
    • 1
  • Yu Cai
    • 2
  1. 1.Beijing Research Center for Information Technology in AgricultureBeijingChina
  2. 2.College of Electronic and Information EngineeringHebei University of TechnologyTianjinChina

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