Handheld Device Research Based On The Infrared Wireless Acquisition

In recent years, with industrial production efficiency and continuous improvement ofquality in the industrial field a large number of indicators to be monitored and recorded, suchas pressure, flow, temperature and humidity. According to the newer, faster to market demandand the rapid development of the field of information and information technology industry,the popularity of artificial records, equipment records have been far can not meet thedevelopment needs of the industrial enterprises, so there are for mobile electronic datacollection system information such urgent needs. Infrared-based wireless data collectionhandheld device is a device of which have very broad application prospects for its fast andefficient mobile data collection information.Variety of wireless acquisition device, which data received by the infrared as the carrierof communications, the use of handheld devices for its low-cost advantages of infrared lightpropagation in the air to transmit the data to become more and more welcomed by theindustry. infrared communication is done by the infrared emitter and infrared receiver devices.Fed into one end of the infrared emission, to transmit the digital signal using an appropriatemodulation and coding techniques, the electro-optical transformation of the circuit passesthrough the infrared emission tube to shift into the infrared light pulse signal is launched intothe air; at the receiver end of the restore the original signal in the infrared receiving deviceinformation transmitted infrared light pulses photoelectric transformation, demodulation anddecoding. Infrared communication as a data transmission means, in many occasions to beapplied, for example, infrared remote control home appliances products, entertainmentfacilities, water, electricity, gas and other energy-consuming measurement class, automatichand-held devices.By the data acquisition unit based on the infrared wireless acquisition handheld devicesand smart storage unit and intelligent unit three parts. Among them, the data acquisition unitfor field signal data acquisition, data analysis and accuracy of the data verification workundertaken between handheld devices and infrared-sending device data acquisition dataacquisition; smart storage unit used to collect over the correct data consolidation, a fixedalgorithm, the data is stored into the memory unit, and can be retrieved when the systemneeds management software uploaded to the host computer or on handheld devices at anytime bring up the contents of the memory; smart The display unit is a window system anduser, using the128*64LCD design, the user can understand the current operation or resultsof operations through the liquid crystal display. As handheld devices, the intelligent displayunit also has a tone operation to prompt the user data collected to complete the correspondingfunction.In addition, the contents of the memory of the device also needs to provide to the user asthe future of data analysis, and hand-held side of the watch, after all, is not convenient to theintegrity of the system, the host computer management software, management software,including user information, set the parameters, read the data and data visit the four functionalclass module. User information class function of basic information to users such as: username and password, etc. carry out management; set the parameter module is mainly toachieve can be on-site collection of instrumentation, and other relevant information set, andhas a hand-held equipment time carry out set of related functions; read data to hand-helddevice memory stored in the record read out; browse the data query, delete and modifyfunctions, and taking into account the many occasions to the data output in the form ofstatements, also completed this function. This thesis is to design the overall design of the system program, the design of the systemhardware and software modules, and the scene of the source of interference analysis anddesign of anti-jamming measures, and laboratory environment and environment in the fieldtest results meet the basic needs of industrial, with good results.