| With the rapid development of economy and Internet of Things technology,the Internet of Things is getting closer to our lives.At the same time,environmental protection has also been urgently needed by people.A new type of solar trash can billboard integrating economy and environmental protection has appeared on the streets of Shanwei City.Its upper body is a solar billboard and the lower part is a trash can.The product is environmentally friendly,but the replacement of advertising papers is cumbersome.On average,each billboard needs 15 minutes to replace the content.It requires two people to cooperate.The replacement requires a lot of manpower and material resources.In view of the troublesome content of the replacement of billboards,this design gives an improved design system solution to the billboard.The slogan was transformed into a method using LED dot-matrix screen display,while using the Internet of Things technology.The billboard system uses GPRS communication,and the mobile phone app uses the mobile phone network,both of which access the China Mobile Internet of Things platform at the same time.With the Internet of Things platform as a relay,it is designed to use the mobile phone app to subdivide,locate,remotely,and centrally set and replace the advertising language content of each billboard,thereby saving a lot of manpower and material resources.This design adopts the design idea of sub-module design,in which the STC15F2K60S2 microcontroller is used as the main control chip,and the communication uses the GRPS A6 module as the communication module.The LED dot matrix screen adopts the cascadable dot matrix screen.The above chips and module technologies are relatively mature,stable in performance,and cost-effective,and can be easily cascaded and maintained.At the same time,the system is controlled by a mobile phone app,and the operation is simple.The entire system has a low cost,convenient maintenance,strong scalability,and has great potential. |
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