Design And Realization Of Building Intercom System Based On Android Platform

With the rapid social development,people's lives enter into the network and digital age,and the products of traditional building intercom are gradually developing towards the digitalization,networking and intelligent home.Visual intercom system is a service device of modern well-off home,which provides two-way visual communication between visitor and resident,and it will achieve double recognition of images and speech,thereby increase security and reliability.It will save a lot of time and improve work efficiency at the same time.Building intercom system is the most important part of the digital residence,which installs anti-theft door at each unit and provides access control.The traditional intercom system can complete the basic access control,but it is still of an inconvenient use because of the single function.In this paper,the core technology of building intercom system was introduced firstly,which includes the serial port NDK technology,the audio and video acquisition,the Network-based development technology and the cloud storage technology of data,and the functional requirements of the system has been determined.Then the system design,which includes the overall design,the hardware design and the database logic design have been made.In addition,according to the system platform design,the key technology of the building intercom,the audio and video servers,the WEB-based program have been made.Finally,the test cases according to the main function have been designed and the test was finished.The system has been tried by the commissioning unit to meet the demand function.The building intercom system uses mobile terminal equipments of Android platform,with tablet and mobile phone as indoor extension,the audio and video intercom and control access terminal can be carried out anytime and anywhere.There are the main innovations of this system:(1)The system is based on internet,the Unit host and indoor extension can communicate and transmit data directly through the internet.Compared with the system in the fifth literature,it will reduce the weak wiring of each unit and the construction of weak wiring for household,so as to reduce the weak construction of real estate and reduce the cost and construction time;(2)Compared with the system in the fifth literature,the data of the building intercom system are stored in the cloud server,and it can manage and maintain the basic data and operation data through the internet.Without the influence of region and operating environment,it will have a good prospect of application.