Exploration of Humidity Data Acquisition System Based on Single Chip Microcomputer

2013 ◽  
Vol 753-755 ◽  
pp. 2494-2497
Author(s):  
Jun Xia Zhang ◽  
Bing Wang ◽  
Ya Ning Song

Exploring a kind of the humidity data acquisition system with higher performance-price ratio is vital to the environmental monitoring. At the present work, a novel of the humidity data acquisition system has been developed so as to collect and store the environmental humidity data. It consists of humidity sensor of DHT11£¬LED digital display and single chip microcomputer (SCM) of AT89S52. AT89S52 was used as the control chip which assembled with humidity sensor of DHT11 and digital display. Moreover, the behavior of humidity data acquisition was simulated with the software of Proteus; the results show that this designed system can collect the humidity data at bigger range. Therefore, the designed humidity acquisition system effectively achieves humidity monitoring, and has advantages of smaller volume, higher performance-price ratio, and portable.

2012 ◽  
Vol 590 ◽  
pp. 333-336
Author(s):  
Qian Zhao ◽  
Shan Zhen Xu ◽  
Qi Chen ◽  
Cheng Wang

A kind of multiple parameter data acquisition system was designed based on single-chip microcomputer which can realized the data acquisition of temperature and DC motor speed. The data acquisition system consists of sensor, signal processing circuit, single-chip microcomputer and LED digital tube. The speed signal is acquired by photoelectric sensor, put into the Single-chip microcomputer processed after processed by signal processing circuit, and displayed the value in the digital tubes. The temperature signal is acquired by digital sensor, and the Single-chip microcomputer can read the data directly. Through two independent keyboards, the test system realized the data acquisition and data switch displaying of the multiple parameters.


1989 ◽  
Author(s):  
Dai Yonyjiang ◽  
Gao Jingkuan ◽  
Wan Lin ◽  
Pi Mingjia ◽  
Nan Jingda

2012 ◽  
Vol 614-615 ◽  
pp. 1566-1569
Author(s):  
Qiang Liu ◽  
Guo Hua Fu ◽  
Xin Ge Lian ◽  
Jun Wang

Because of the data acquisition system is more and more wide application range, involved the signal source and the type of more and more of the requirement of measurement, more and more is also high, the domestic now has quite a few data collection system and measurement, but many systems are simple function, and acquisition channel, the sampling rate is low, less complex operation, and higher requirements for test environment. People need a wide application range, high performance/price ratio of data acquisition system. In this paper, the main content is the use of ARM9 processor C2440A primarily controller series 3, design an embedded data acquisition system. Using ARM9 chip do microprocessor design remote data acquisition system, through the embedded Linux system video data collection USB cameras, the JPEG compression coding, ARM9 chip control data acquisition by most industrial environmental restrictions for collection system that has a large capacity of the storage and wireless forwarding function. This paper to S3C2440A as the core, with A piece of FPGA and A piece of Ethernet CS8900A controller for auxiliary to realize the digital parts of the system hardware, analog part two way by the A/D acquisition, variable gain amplifier and basic amplifying circuit component. The system also realize the SD card memory function and various interface such as serial ports and JTAG mouth. In the software of realized in development platform on Linux system of transplantation, separately from the Bootloader transplantation, Linux kernel transplantation and root file system, the establishment of the three are expounded. And completion of the A/D converter, SD card and CS8900A in the drive design under Linux, and finally the data acquisition, storage design and forwarding program.


2013 ◽  
Vol 791-793 ◽  
pp. 1824-1827
Author(s):  
Shu Ya Zhi ◽  
Xiu Jun Ling

The paper discusses the neuron chip based on MC143150 and single-chip microcomputer AT89S51 double CPU structure AI node hardware and software design process. In the hardware introduced the ADC0809 modulus conversion chip data acquisition system,AT89S51 and MC143150 interface and MC143150 and physical network interface. In the software introduces the data acquisition, parallel slave-A mode of communication and utilization of network variables to send information from three aspects of the program design.


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