Digital meter identifier based on wireless communication and images
Zixin Qi · Mechanical & Electrical Engineering Magazine · 2009
Aiming at the inconvenience and insecurity brought by current prevailing manual meter reading,this digital meter identifier based on wireless communication and image was designed.CMOS image sensor was used to acquire the image of domestic meters' value and high-performance digital signal processor(DSP) was applied to figure processing and identification.The result were sent to concentrator through the short-range wireless ZigBee communications,so as to collect the fees,monitoring etc..The experiments show that the rate of identifying correct numbers can reach 95%.An image with 6 figures will be identified within 2 seconds,which is enough for common use.Besides,the system takes the advantages of good reliability and anti-jamming.