| Stepping into the information age,China’s modernization and industrialization process is gradually accelerating,the application of the Internet of things is widely penetrating into all fields of social life,the social production mode and people’s life style are undergoing profound changes.In 2018,China Mobile Yunnan company took the lead in deploying narrowband Internet of things(NB-IoT)site construction in Yunnan Province,benefiting the people in the fields of transportation,tourism,people’s livelihood,etc.Under the background of national Intelligent Tourism Strategy and "one machine Tour",with the development of society,the improvement of people’s living standards and the acceleration of urban construction,the transformation of urban public toilets is particularly important.In order to solve the problem that it is difficult for people to find the toilet in need of use and the toilet in some star scenic spots cannot be powered by electricity,and to improve people’s travel efficiency and convenience.Based on the technology of Internet of things,this paper proposes a NB-IoT-based structure can be configured smart toilet system design.According to the different characteristics of power supply capability of different applications,the " structure can be configured " method is realized by the combination of hardware configuration software and software configuration hardware.The method of " structure can be configured " combines NB-IoT technology,hardware and software to design five low-power operation modes to solve the power consumption problem in battery powered mode.The hardware power supply scheme,the function node type controlled by the dial switch,the power consumption mode and other information of the function node configured by the software are configured by the dial switch.According to the statistical analysis results of the platform,the function nodes work adaptively in different power consumption modes,and can flexibly cope with different power supply scenarios,effectively reducing costs.The Internet of things platform realizes the docking of equipment in the South and application in the north,which can quickly solve the docking of different business logic equipment and applications.Through NB-IoT technology,the data of pit use,human flow,geographic information,temperature and humidity,ammonia concentration,etc.in the toilet will be reported to the cloud platform.The function of "one machine Tour" to find toilet shows that the method proposed in this paper can improve the "smart toilet" to improve the toilet coverage,meet the power consumption demand,and provide effective and efficient toilet finding services for people who need to go to toilet in a strange environment.This paper briefly introduces the hardware design,embedded software design and the docking of the Internet of things platform. |