Advertising board
A billboard and cover technology, applied in the field of billboards, can solve the problem of not being able to know the degree of air pollution at any time, and achieve the effect of deepening cognition
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[0013] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:
[0014] figure 1 , figure 2 , image 3 The shown billboard includes a cover body 1, and the upper reel driven by the first motor 4 and the lower reel driven by the second motor 5 are arranged in the cover body 1; At both ends, the cover body 1 is provided with an air quality sensor 21 and a brightness sensor 61 respectively, an air quality index display 2 and a plurality of LED lights 6 are installed in the cover body 1, and a plurality of LED lamps 6 corresponding to the air quality index are provided on the advertising tape 10. The window of the display 2, the air quality sensor 21 and the brightness sensor 61 are electrically connected to the air quality index display 2 and the LED lamp 6 respectively through the controller, and the controller is electrically connected to the first motor 4 and the second motor 5 respectively.
[0015] The controll...
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