IoT is attracting attention as a means of solving problems for realizing a sustainable society. To realize IoT, edge computing is required in addition to clouds and networks. The authors developed a technology to detect the closing of injectors and pumps by signal processing of the drive current. The concept of detecting the inductance change due to the actuator motion used here by signal processing has also been studied for latch solenoid valves and SR motors. It can be concluded that the solenoid valve motion detection technology has universality as a basic technology for IoT.
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