This solution can directly use software to drive the CMOS sensor, and its image frame rate can reach up to 30 FPS. The information can be transmitted to the cloud through Wi-Fi or NB-IoT to realize the remote meter reading function.
Wireless camera module plus image recognition technology
Install a CMOS camera (with a wireless transmission module) on an existing traditional water meter to regularly take photos of the water meter's charges. After identifying the numbers through image recognition technology, the wireless module is used to transmit the information.
NuMicro M480 Development Platform
Nuvoton Technology provides the NuMicro M482 series development platform based on the Cortex-M4 core, which uses a GPIO emulation CMOS interface to receive images (image resolution 320 x 240), and quickly completes image recognition operations through a core speed of up to 192 MHz and a DSP hardware accelerator. The identified numbers are sent out using wireless transparent transmission modules (such as Wifi, 2G / 4G, NB-IoT and other wireless transmission protocols).
Blockdiagram
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