SEMICONDUCTOR DEVICE AND SENSOR SYSTEM
First Claim
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1. A semiconductor device comprising:
- a power generator;
a power storage device;
a wireless device;
a sensing device configured to perform sensing;
a sensing device controller;
a power switch;
a power switch controller; and
a timer,wherein the power switch and the power switch controller are configured to power off the sensing device controller when the sensing is not performed,wherein data obtained by the sensing device is transmitted through the wireless device, andwherein power generated in the power generator is used.
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Abstract
A sensor system that does not require wiring connection is provided. The sensor system includes a power generator, a power storage device, a wireless device, a sensing device, and a power switch (PSW). Data is transmitted and received wirelessly. Energy harvesting with vibration or the like is used as a power source, and supply of power to an unused portion of the PSW is stopped.
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Citations
20 Claims
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1. A semiconductor device comprising:
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a power generator; a power storage device; a wireless device; a sensing device configured to perform sensing; a sensing device controller; a power switch; a power switch controller; and a timer, wherein the power switch and the power switch controller are configured to power off the sensing device controller when the sensing is not performed, wherein data obtained by the sensing device is transmitted through the wireless device, and wherein power generated in the power generator is used. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A sensor system comprising:
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a power generator; a power storage device; a wireless device; a sensing device configured to perform sensing; a sensing device controller; a power switch; a power switch controller; and a timer, wherein the power switch and the power switch controller are configured to power off the sensing device controller when the sensing is not performed, wherein data obtained by the sensing device is transmitted through the wireless device, wherein power generated in the power generator is used, and wherein at least one of temperature, humidity, atmospheric pressure, a light wavelength, light quantity, acceleration, and a gas concentration is obtained by the sensing device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification