Design Of Surveying And Mapping System Based On Android Platform And Laser Rangefinder

In recent years,with the emerging business models such as O2 O and O2 C being deeply rooted in the minds of the people,the concept of the Internet of Things has begun to penetrate into all walks of life.The combination of online and offline is also getting closer.Whether it is the heated competition of taxi-take APPs and take-away platforms or the recent sharing of bicycles,all this shows that this business model has had a huge impact on people's lives.With the crazy layout of major internet companies,the Internet of Things has infiltrated various traditional industries? home decoration and engineering design are.Traditional home decoration and engineering design cycle is longer,and in the early design,blueprint,showed less than intuitive,can no longer meet the needs of consumers.Drawing directly on the mobile client and generating drawings,this model will be more convenient and intuitive,and bring a higher volume for the business.Based on the laser range finder Bluetooth device and Android platform,this paper designs and implements a BLE Bluetooth communication method.1.A Bluetooth Android drawing client is achieved based on the Android platform and laser range finder to transmit data via.The user uses the laser rangefinder to measure the length,width and height of the room,and transmits the data to the Android client via the Bluetooth module.The virtual model is built on the client and the exportable drawings are generated.The Android client provides the application scenario and the corresponding Virtual items,users can create intuitive drawings.2.A method of Bluetooth communication protocol based on CRC and a laser range finder Bluetooth communication is proposed based on the callback function,which can accomplish data transmission and buffer efficiently with low power consumption.A Canvas + Bitmap + GreenDao drawing method,which can draw simple graphics and label data conveniently and quickly,proposes that the combination of custom controls and layouts realizes the packaging of the virtual goods graphics and completes the function of adding virtual items;and achieves the function by using an open source library PagerSlidingTabStrip Sliding of data list windows and generating PDF documents via the iText library.3.The logical relationship that the client needs to realize the function is analyzed,the concrete functional module is divided,and the human-computer interaction UI interface is designed,and the drawing system complete the coding work of the bluetooth communication method,and finally test the function in the simulator and real machine to perfect and test System compatibility.