Design Of Automatic Measurement System For Indoor Area

At present,there are some problems in most of the measurement tools in our country,such as low measurement accuracy and large human error.In view of the above problems,combined with the universality of Android mobile phones,it is determined that the indoor area automatic measurement system consists of Android mobile phone client and measurement data collector.This system can measure the indoor area automatically.This paper designs an automatic indoor area measurement system based on Java programming,laser ranging,Bluetooth communication and other technologies.The system is divided into measurement data collector and Android mobile client.First of all,the measurement data collector use s Bluetooth communication technology to transmit the collected data to the Android mobile phone client,realizing the wireless communication between the mobile phone and the measurement data collector.When receiving the sampling data,the house type chart calculation and construction module in the Android client uses the point cloud data matching technology to package and send the data to the Android mobile phone client in frames End.In the process of building house type map,it is mainly based on the method of region segmentation and feature extraction to generate house type map.Finally,the mobile client carries out data processing to complete the measurement of indoor area.Android mobile client realizes data collection,rapid measurement of house area and automatic measurement.STM32 single chip computer is selected as the main control chip of the system.In addition,it consists of Bluetooth module,laser ranging unit,motor speed driver,battery,power detection circuit and auxiliary circuit.The las er ranging unit includes a laser pulse transmitter and a laser pulse receiver.This project has completed the development of the Android mobile phone client program and the circuit design of the measurement data collector.The indoor area automatic measurement system has the intelligence and automaticity,which avoids the problems such as the inaccuracy of the traditional ranging method and the error of the manual operation.