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The principle and functions of the temperature control system based on microcontroller AT89S51 are studied, and the temperature measurement unit consists of the 1-Wire bus digital temperature sensor DS18B20. The system can be expected to detect the preset temperature, display time and save monitoring data. An alarm will be given by system if the temperature exceeds the upper and lower limit value...
This paper introduces the design of the lab intelligent remote monitoring system based on S3C2440 ARM microprocessor. Aiming at the issue that document storage brings many troubles to the embedded developments and the traditional databases can not be used in the embedded application development, it focuses on the embedded database storage with SQLite as the core and studies the feasibility in the...
Dynamic characteristics are one of the important properties of temperature sensor; improving the dynamic characteristics of temperature sensor is the fundamental purpose of dynamic calibration. In this paper, the author has established a dynamic characteristics testing system based on an analysis on temperature-sensor calibration method, and proposed a new method for testing the dynamic characteristics...
For the traditional surveillance system with the weakness of over-reliance on monitor environment, poor mobility and so on, this paper proposed a monitoring scheme based on android smart phone terminal, which makes it possible to monitor the target site anywhere and anytime under the coverage of wireless network and enhances the flexibility of surveillance system greatly.
The airplane fire alarm system is a piece of the most important equipment influencing the flight security. Due to the factors of design and working condition, the reliability of the system is poor, especially the high rate of false alarm. So the test equipment of airplane fire alarm system, an intelligent synthesis test system allowing multiple parameters and digital data acquisition, is developed...
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