The Programming Algorithm Based on Embedded System for the Output Conversion of the Humidity & Temperature Sensor SHTxx

Jiu Peng Zou; Yu Qiang Dai; Xue Wu Liu; Li Ming Zhang; Feng Xia Liu

doi:10.4028/www.scientific.net/AEF.6-7.294

Paper Titles

The Design and Implementation of the Complicated Resource System Based on RBAC Model
p.273

Sorted Chase Detection Algorithm for MIMO System
p.279

An Image Automatic Registration Approach Based on Watershed Algorithm
p.284

Orthogonal Genetic Algorithm and its Application in Traveling Salesman Problem
p.290

The Programming Algorithm Based on Embedded System for the Output Conversion of the Humidity & Temperature Sensor SHTxx
p.294

The Halftone Image Watermarking Algorithm Based on Error Diffusion
p.299

The Research on Positions Distribution in Airport Operation Command Simulation System
p.304

A New Error Concealment Algorithm Based on Directional Texture Synthesis
p.309

Feedback Searching Bias and Measurement of its Effect on Ant Colony Optimization
p.315

HomeAdvanced Engineering ForumAdvanced Engineering Forum Vols. 6-7The Programming Algorithm Based on Embedded System...

The Programming Algorithm Based on Embedded System for the Output Conversion of the Humidity & Temperature Sensor SHTxx

Abstract:

In order to avoid the digital humidity & temperature sensor SHTxx’s output values conversion consume many quantity of storage location, and spend more operation time, a group new type of conversion polynomials, and corresponding programming algorithm were deduced and tested. The polynomials are precise equivalent to the conversion formulas provided by the manufacturers, but contain only Binary fixed-point integer, fractional part, and 2N. Using fixed-point calculations and shift operations instead of floating-point calculations, the results of program code reduction amount of 60 percent, and computing speed faster nearly 4 times than the original algorithm are obtained. Furthermore, a kind of speedy and unified CRC algorithm for read-out data of the sensor is proposed. The novel programming algorithm makes the output conversion more simplified, so it could pave the way for the low-end embedded applications of SHTxx.

By email View Pdf

You have full access to the following eBook

Read eBook

Info:

Periodical:

Advanced Engineering Forum (Volumes 6-7)

Pages:

294-298

DOI:

https://doi.org/10.4028/www.scientific.net/AEF.6-7.294

Citation:

Cite this paper

Online since:

September 2012

Authors:

Jiu Peng Zou, Yu Qiang Dai, Xue Wu Liu, Li Ming Zhang, Feng Xia Liu

Keywords:

CRC, Embedded System, Programming Algorithm, Sensor SHTxx

Export:

RIS, BibTeX

Permissions:

Creative Commons CC BY 4.0

Citation:

References

[1] SENSERION THE SENSOR COMPANY. SHTxx humidity & temperature sensmitter application note, Non-linearity compensation. Rev 1. 5. http: /www. sensirion. com.

Google Scholar

[2] SENSERION THE SENSOR COMPANY. Datasheet SHT1x (SHT10, SHT11, SHT15) humidity and temperature sensor, Version 4. 1. Sept. 2008. http: /www. sensirion. com.

Google Scholar

[3] SENSERION THE SENSOR COMPANY. SHT1x /SHT7x humidity & temperature sensor system, Evaluation kit available, V2. 02. July 2004. http: /www. sensirion. com.

Google Scholar

[4] SENSERION THE SENSOR COMPANY. SHTxx Humidity & Temperature Sensmitter Application Note CRC. Rev 1. 07, http: /www. sensirion. com.

Google Scholar

[5] Li Xiaowei. The temperature and humidity monitoring system based on the technology of embedded system. Dalian University of Technology, Master Dissertation, (2012).

Google Scholar

[6] Zou Jiupeng, Lin Yiaoyiao, Zhou Jian. Discussion of CRC coding and hardware fast check [J], Microcontrollers & Embedded Systems. 100 (2009) 76-78.

Google Scholar