Central control system

• US 9,819,261 B2
• Filed: 10/24/2013
• Issued: 11/14/2017
• Est. Priority Date: 10/25/2012
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei, Nishijima, Tatsuji, Kobayashi, Hidetomo, Atsumi, Tomoaki, Kato, Kiyoshi
• Primary Examiner(s): Barnes-Bullock, Crystal J
• Application Number:
  US14/062,249
• Publication Number:
  US 20140121787A1
• Time in Patent Office: 1,482 Days
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G01R 19/00 Arrangements for measuring currents or voltages or for indicating presence or sign thereof G01R5/00 takes precedence; for measuring bioelectric currents or voltages A61B5/24
• CPC Class Codes: G01R 22/063 related to remote communication
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05B 19/048 Monitoring; Safety
• CPC Class Codes: G05B 2219/24024 Safety, surveillance
• CPC Class Codes: G06F 1/32 Means for saving power
• CPC Class Codes: G08B 26/007 Wireless interrogation
• CPC Class Codes: G08B 29/181 due to failing power supply
• CPC Class Codes: G08C 2201/10 Power supply of remote control devices
• CPC Class Codes: H02M 1/0045 Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
• CPC Class Codes: H02M 3/156 with automatic control of output voltage or current, e.g. switching regulators
• CPC Class Codes: H02M 3/158 including plural semiconductor devices as final control devices for a single load
• CPC Class Codes: H04B 1/1615 Switching on; Switching off, e.g. remotely battery saving circuits associated with selective call operation H04W52/00; details of power consumption reduction in a PLL, H03L7/0802, H03L7/14, H03L2207/08, H03L2207/18; muting amplifiers by gain control see H03G3/34
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04L 12/2825 Reporting to a device located outside the home and the home network access arrangements H04L12/2856; for remote control or remote monitoring of applications H04L67/025; telephonic communication systems adapted for combination with telemetering systems H04M11/002
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y02D 30/70 in wireless communication networks
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

Provided is a structure which is capable of central control of an electric device and a sensor device and a structure which can reduce power consumption of an electric device and a sensor device. A central control system includes at least a central control device, an output unit, and an electric device or a sensor device. The central control device performs arithmetic processing on information transmitted from the electric device or the sensor device and makes the output unit output information obtained by the arithmetic processing. It is possible to know the state of the electric device or the sensor device even apart from the electric device or the sensor device. The electric device or the sensor device includes a transistor which includes an activation layer using a semiconductor with the band gap wider than that of single crystal silicon.

Claims

1. A central control system comprising:

a central control device;

a sensor device; and

an output unit,

wherein the central control device comprises a first interface,

wherein the sensor device comprises a second interface, a power source switch control circuit, a voltage regulator circuit, and a power switch,

wherein the power source switch control circuit is connected to the second interface,

wherein the power source switch control circuit is configured to control switching of the power switch in accordance with a control signal from the central control device,

wherein the power switch comprises a transistor comprising an oxide semiconductor layer comprising a channel formation region,

wherein the sensor device and the output unit are connected to the first interface of the central control device,

wherein the central control device comprises a memory unit which stores device information for identifying a location of the sensor device and determining whether or not operation of the sensor device is normal,

wherein the central control device is configured to perform arithmetic processing in which information transmitted from the sensor device and the device information are compared, and

wherein the output unit is configured to output the information obtained by the arithmetic processing.

2. The central control system according to claim 1,

wherein power is supplied from an optical power generation device to the central control device, the sensor device, or the output unit.

3. The central control system according to claim 1,

wherein the sensor device and the output unit are connected to the central control device by wireless communication.

4. The central control system according to claim 1,

wherein the sensor device is one selected from the group consisting of a fire alarm, a human detection sensor, a proximity switch, a vibration sensor, a radiation sensor, a surveillance camera, an electricity meter, a water meter, and a gas meter.

5. The central control system according to claim 1, wherein the output unit is a display device, a sound device, a light-emitting device, a vibration device, or a perfuming device.

6. A central control system comprising:

a central control device;

a sensor device;

an electric device; and

an output unit,

wherein the central control device comprises a first interface,

wherein the sensor device comprises a second interface, a power source switch control circuit, a voltage regulator circuit and a power switch,

wherein the power source switch control circuit is connected to the second interface,

wherein the power source switch control circuit is configured to control switching of the power switch in accordance with a control signal from the central control device,

wherein the power switch comprises a transistor comprising an oxide semiconductor layer comprising a channel formation region,

wherein the sensor device, the electric device and the output unit are connected to the first interface of the central control device,

wherein the central control device comprises a memory unit which stores device information for identifying a location of each of the sensor device and the electric device and determining whether or not operation of each of the sensor device and the electric device is normal,

wherein the central control device is configured to perform arithmetic processing in which information transmitted from each of the sensor device and the electric device and the device information are compared, and

wherein the output unit is configured to output the information obtained by the arithmetic processing.

7. The central control system according to claim 6,

wherein power is supplied from an optical power generation device to the central control device, the sensor device, the electric device or the output unit.

8. The central control system according to claim 6,

wherein the sensor device, the electric device and the output unit are connected to the central control device by wireless communication.

9. The central control system according to claim 6,

wherein the sensor device is one selected from the group consisting of a fire alarm, a human detection sensor, a proximity switch, a vibration sensor, a radiation sensor, a surveillance camera, an electricity meter, a water meter, and a gas meter.

10. The central control system according to claim 6,

wherein the electric device is one selected from the group consisting of an air conditioning device, an audio device, a washing machine, a bathroom control device, a refrigerator, a dish washer, a microwave oven, an intercom, a rice cooker, and an electric pot.

11. The central control system according to claim 6,

wherein the output unit is a display device, a sound device, a light-emitting device, a vibration device, or a perfuming device.

12. A central control system comprising:

a central control device;

a plurality of sensor devices; and

an output unit,

wherein the central control device comprises a first interface,

wherein each of the plurality of sensor devices comprises a second interface, a power source switch control circuit, a voltage regulator circuit and a power switch,

wherein the power source switch control circuit is connected to the second interface,

wherein the power source switch control circuit is configured to control switching of the power switch in accordance with a control signal from the central control device,

wherein the power switch comprises a transistor comprising an oxide semiconductor layer comprising a channel formation region,

wherein the plurality of sensor devices and the output unit are connected to the first interface of the central control device,

wherein each of the plurality of sensor devices includes an identifier,

wherein the central control device comprises a memory unit which stores device information for identifying location of each of the plurality of sensor devices and determining whether or not operation of each of the plurality of sensor devices is normal,

wherein the central control device is configured to perform arithmetic processing in which information transmitted from each of the plurality of sensor devices with the identifier and the device information are compared, and

wherein the output unit is configured to output the information obtained by the arithmetic processing.

13. The central control system according to claim 12,

wherein the central control device identifies the location of each of the plurality of sensor devices by the identifier.

14. The central control system according to claim 12,

wherein power is supplied from an optical power generation device to the central control device, the plurality of sensor devices, or the output unit.

15. The central control system according to claim 12,

wherein the plurality of sensor devices and the output unit are connected to the central control device by wireless communication.

16. The central control system according to claim 12,

wherein each of the plurality of sensor devices is one selected from the group consisting of a fire alarm, a human detection sensor, a proximity switch, a vibration sensor, a radiation sensor, a surveillance camera, an electricity meter, a water meter, and a gas meter.

17. The central control system according to claim 12,

wherein the output unit is a display device, a sound device, a light-emitting device, a vibration device, or a perfuming device.