Remote meter reading method and system based on image recognition technology and NB-IoT technology

Abstract

The invention provides a remote meter reading method based on an image recognition technology and an NB-IoT technology. The method comprises the following steps of: a camera collects a water meter dial image data according to a preset period; writing the collected dial image data into a data storage; carrying out the image preprocessing, the inclination correction, the character wheel area precisepositioning, and the character wheel area character segmentation on the dial image data in sequence; identifying segmented character wheel area character segmentation by adopting a BP neural networkbased digital recognition algorithm to obtain a dial reading; and using the NB-IoT technology to send the dial reading to a transparent cloud server. The invention provides a remote meter reading system based on an image recognition technology and an NB-IoT technology. The system comprises an image acquisition module, a data storage module, a data processing module, an image identification module,and a wireless transmission module. According to the remote meter reading method and system based on image recognition technology and NB-IoT technology, the NB-IoT technology with the image recognition technology is combined to realize the remote meter reading by adding a water surface digital image recognition device to the original water meter, so that the efficiency and reliability of meter reading are improved.

Description

technical field [0001] The invention relates to the technical field of remote wireless communication and image recognition of the Internet of Things, in particular to a remote meter reading method and system based on image recognition technology and NB-IoT Internet of Things technology. Background technique [0002] With the increasing development and improvement of domestic intelligent systems, the rise of remote meter reading technology for flow metering meters has solved the difficulties of manual meter reading statistics and has become an important part of the modern management system. Flow meters with wireless meter reading functions such as water meters, electricity meters, gas meters, etc. have begun to be gradually used in residential areas and high-end parks. [0003] However, the remote meter reading technology of these flow metering meters still has some shortcomings. For example, due to the influence of the installation location, the water meter with the wireless...

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Problems solved by technology

[0003] However, the remote meter reading technology of these flow metering meters still has some shortcomings. For example, due to the influence of the installation location, the water meter with the wireless meter reading function often has different degrees of signal transmission difficulties in closed spaces such as basements and pipelines. It causes the loss of data transmission, and in most places, the water meter needs to be replaced in order to realize wireless meter reading. This method not only increases the cost of modification, but also is not easy to construct in some places, so some areas cannot use wireless communication. To collect water data

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