The wireless intelligent control system has been successfully implemented for the first time in China, which can achieve the purpose of energy saving and the purpose of intelligent control. The intelligent control system, adopting the remote monitoring technology, wireless communication technology, and PWM dimming module, can easily finish the information and command transmission, which is mainly composed of tunnel illumination network, brightness detection, vehicle flow detection, field surveillance unit (FSU), and concentration supervision center (CSC). The construction intensity and construction cost are curtailed, and, additionally, the maintenance of the illumination system is convenient. On the other hand, together with the application of wireless transmission technology, no signal lines exist between the lamps, the flexibility and extensibility of the system are relatively great, and the control method and structure configuration are extremely flexible.
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This work is partially supported by the National Natural Science Foundation of China (Grant no. 51008029). The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.
The EFM8BB10F4A-QFN20 microcontrollers (MCUs) are built on top of a low power platform and operate at 25 MHz. The EFM8BB10F4A-QFN20 includes 4 kB Flash, 0.5 kB RAM, 16 Dig I/O Pins, 4 x 16-bit timers, 3 PCA Channels, -40 to 125 ºC temperature range, Automotive grade, full AEC-Q100 qualification, 3x3 QFN20 package, and additional communication peripherals. 2ff7e9595c
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