Research On Word Wheel Meter Indication Visual Inspection System

Urban and rural residential electricity meters, water meters and gas meter readingbasically manual meter reading, this backward way, there are many disadvantages, such aslabor-intensive, long meter reading cycle, monitoring assessment difficult, consume a largeamount of human, material and financial resources. With the development of society and theadvancement of information technology, automatic meter reading system to replace thetraditional manual meter reading is imperative. Automatic meter reading system should meetthe high accuracy, a wide range of applications, with real-time and large memory capacity andother characteristics.The design of the word wheel water meter number image acquisition system is based onTMS320DM6437of DSP. Throughout the meter number recognition system, the acquisition ofthe image occupies an important position. On the top of the meter for accurate positioning,ensuring a clear image capture to meter number will help improve the accuracy of characterrecognition. This design uses the CMOS image sensor to collect the four meter number inreal-time. Through the video decoding chip TVP5146, The digital image information isdecoded by the video processing front end into the DSP. After storing the image preprocessinguse the LCD screen to read and display image meter number. Ultimate realization of the meternumber of image acquisition functions. Through the character recognition software embeddedalgorithm completes the meter number character recognition function. Through the touchscreen and Ethernet provides a good interactive interface with data transfer channels.Operating in the physical system based on theory experimental platform.Word Wheel meter number recognition system consists of the following modules: imagesensor units, analog signal processing unit, the image data storage unit, interactive interface,and data transfer unit. The overall design of the main completed is the embedded systemhardware design and the number recognition software program. To achieve the automaticmeter reading function.