APPARATUS FOR LOW POWER WIRELESS COMMUNICATION

• US 20120229261A1
• Filed: 03/06/2012
• Published: 09/13/2012
• Est. Priority Date: 03/09/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Dong Wook
• Granted Patent: US 9,230,427 B2
• Time in Patent Office: Days
• US Class Current: 340/10.5
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/12 Power saving techniques of remote control or controlled devices
• CPC Class Codes: G08C 2201/93 Remote control using other portable devices, e.g. mobile phone, PDA, laptop
• CPC Class Codes: H04Q 2209/47 using RFID associated with sensors
• CPC Class Codes: H04Q 2209/75 by polling or interrogating the sub-stations
• CPC Class Codes: H04Q 2209/883 where the sensing device enters an active or inactive mode
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A wireless communication apparatus for starting an operation according to an electric wave received from a portable terminal is provided. The apparatus includes a wireless communication module for transmitting data to the portable terminal, an RFID tag for turning-on a switch using the electric wave received from the portable terminal, the switch supplying power of a battery to a sensor, the wireless communication module and a control unit when the switch is turned-on, and for cutting-off the power supply of the battery to the sensor, the wireless communication module and the control unit when the switch is turned-off, and the control unit for driving the sensor when the power from the battery is supplied to the control unit, for controlling the wireless communication module to transmit a physical amount from the sensor to the portable terminal and for turning off the switch when the control unit receives the physical amount.

Claims

1. A wireless communication apparatus for starting an operation according to an electric wave received from a portable terminal, the apparatus comprising:

a battery;

a sensor for measuring a physical amount;

a wireless communication module for transmitting data to the portable terminal;

a Radio Frequency IDentification (RFID) tag for turning-on a switch using the electric wave received from the portable terminal;

the switch for supplying power of the battery to the sensor, the wireless communication module and a control unit when the switch is turned-on, and cutting-off the power supply of the battery to the sensor, the wireless communication module and the control unit when the switch is turned-off; and

the control unit for driving the sensor when the power from the battery is supplied to the control unit, for controlling the wireless communication module to transmit the physical amount received from the sensor to the portable terminal and for turning off the switch when the control unit receives the physical amount.

2. The wireless communication apparatus of claim 1, further comprising a counter for turning-on the switch at preset times, wherein the control unit comprises a memory for storing the received physical amount.

3. The wireless communication apparatus of claim 2, wherein the control unit drives the sensor to measure a physical amount when the switch is turned-on by the counter, stores the physical amount received from the sensor in a memory of the control unit and turns-off the switch, and

the control unit controls the wireless communication module to transmit the physical amount stored in the memory of the control unit to the portable terminal when the switch is turned-on by the RFID tag and turns-off the switch.

4. The wireless communication apparatus of claim 3, wherein the wireless communication module communicates with the portable terminal using at least one of Bluetooth technology, a Wireless Local Area Network (WLAN) and Ultra-WideBand (UWB) technology.

5. A wireless communication apparatus for starting an operation according to an electric wave received from a portable terminal, the apparatus comprising:

a battery;

a sensor for measuring a physical amount;

a Radio Frequency IDentification (RFID) tag for turning-on a switch using the electric wave received from the portable terminal;

the switch for supplying power of the battery to the sensor and a control unit when the switch is turned-on, and for cutting-off the power supply of the battery to the sensor and the control unit when the switch is turned-off; and

the control unit for driving the sensor to measure the physical amount when the power from the battery is supplied to the control unit, for controlling the transmission of the physical amount from the sensor to the portable terminal, and for turning off the switch when the control unit receives the physical amount.

6. The wireless communication apparatus of claim 5, wherein the control unit stores the received physical amount in a tag memory of the RFID tag and turns-off the switch, and

the RFID tag transmits the physical amount stored in the tag memory to the portable terminal using energy of a data request signal received from the portable terminal

7. The wireless communication apparatus of claim 6, further comprising a wireless communication module for receiving the power from the battery through the switch, and for transmitting the received physical amount to the portable terminal when the wireless communication module receives a data transmission command signal from the control unit.

8. The wireless communication apparatus of claim 7, wherein the control unit stores the received physical amount in the tag memory of the RFID tag when a size of the received physical amount is less than a threshold value and turns-off the switch, and the control unit controls the wireless communication module to transmit the received physical amount to the portable terminal when the size of the received physical amount is equal to or greater than the threshold value and turns-off the switch.

9. The wireless communication apparatus of claim 8, wherein the wireless communication module communicates with the portable terminal using at least one of Bluetooth technology, a Wireless Local Area Network (WLAN), and Ultra-WideBand (UWB) technology.

10. The wireless communication apparatus of claim 5, further comprising:

a wireless communication module for receiving the power from the battery through the switch, and for transmitting the received physical amount to the portable terminal when the wireless communication module receives a data transmission command signal from the control unit; and

a counter for turning-on the switch at preset times,

wherein the control unit drives the sensor to measure the physical amount when the switch is turned-on by the counter, stores the physical amount received from the sensor in a memory of the control unit, and turns-off the switch, and the control unit controls the wireless communication module to transmit the physical amount stored in the memory of the control unit to the portable terminal when the switch is turned-on by the RFID tag and turns-off the switch.

11. A wireless communication apparatus, the apparatus comprising:

a battery;

a driver for performing a mechanical operation or an electrical operation;

a Radio Frequency IDentification (RFID) tag for turning-on a switch using an electric wave received from a portable terminal;

the switch for supplying power of the battery to the driver and a control unit when the switch is turned-on, and for cutting-off the power supply of the battery to the driver and the control unit when the switch is turned-off; and

the control unit for driving the driver when the power from the battery is supplied to the control unit and for turning off the switch.