US 11,146,118 B2Granted

Wireless power supply sensing system

AssigneePanasonic Corporation

InventorHiroyuki Tani

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Abstract

The wireless power supply sensing system includes a transmitter/receiver and a power reception sensor. The transmitter/receiver has: an oscillation unit for generating electrical power; and a control unit for causing electrical power to be radiated into space and instructing an electrical power supply operation by the power reception sensor. In a first mode, in which the charge amount of a secondary cell is equal to or higher than a threshold value, the control unit controls the power reception sensor so that the electrical power received by the power reception sensor is supplied to a sensor unit, and in a second mode, in which the charge amount of the secondary cell is less than the threshold value, the control unit controls the power reception sensor so that the electrical power received by the power reception sensor is supplied to the secondary cell.

Claims12

Dependent claims

A wireless power supply sensing system, comprising:

a transceiver that radiates power into space and receives information;
and
a power receiving sensor that receives the power and performs sensing, wherein
the power receiving sensor includes:
a battery that stores therein the power;
a sensor that performs the sensing;
and
a first controller that supplies the power stored in the battery to the sensor, wherein
a plurality of the power receiving sensors are present, and wherein
the transceiver determines, based on the information received from the plurality of power receiving sensors, which power receiving sensor has the largest charge amount of the battery among the plurality of power receiving sensors,
the transceiver makes a control for the power receiving sensor having the largest charge amount of the battery such that the power stored in the battery is supplied to the sensor, and
the transceiver makes a control for another one or more of the plurality of power receiving sensors other than the power receiving sensor having the largest charge amount of the battery such that the power received from the transceiver is supplied to the battery.

9 more elements

A wireless power supply sensing system, comprising:

a transceiver that radiates power into space and receives information;
and
a power receiving sensor that receives the power and performs sensing, wherein
the transceiver includes:
an oscillator that generates the power;
and
a second controller that causes the power to be radiated into the space and indicates a supply operation of the power in the power receiving sensor, and wherein
the second controller transmits, to the power receiving sensor, control information indicating that the power received by the power receiving sensor is supplied to a sensor provided in the power receiving sensor, in case of a first mode in which a charge amount of a battery provided in the power receiving sensor is equal to or greater than a predetermined threshold, and
the second controller transmits, to the power receiving sensor, control information indicating that the power received by the power receiving sensor is supplied to the battery, in case of a second mode in which the charge amount of the battery is less than the predetermined threshold.

6 more elements

A wireless power supply sensing system, comprising:

a transceiver that radiates power into space and receives information;
and
a power receiving sensor that receives the power and performs sensing, wherein
the transceiver includes:
an oscillator that generates the power;
and
a second controller that causes the power to be radiated into the space and indicates a supply operation of the power in the power receiving sensor, and wherein
the second controller transmits, to the power receiving sensor, control information indicating that the power received by the power receiving sensor is supplied to a sensor provided in the power receiving sensor, in case of a first mode in which a charge amount of a battery provided in the power receiving sensor is equal to or greater than a predetermined threshold, and
the second controller transmits, to the power receiving sensor, control information indicating that the power received by the power receiving sensor is supplied to the battery, in case of a second mode in which the charge amount of the battery is less than the predetermined threshold, and wherein
the power receiving sensor includes:
a battery that stores therein the power;
a sensor that performs the sensing;
and
a first controller that supplies the power stored in the battery to the sensor.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/794,405Filed 19 Feb 2020 · continuation
Priority: JP JP2018-10430231 May 2018
Published: US 2020/0185973 A111 Jun 2020
Granted: 12 Oct 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02J 50/40
Circuit arrangements or systems for wireless supply or distribution of electric power: using two or more transmitting or receiving devices
H02J 7/02
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: for charging batteries from AC mains by converters
H02J 50/20
Circuit arrangements or systems for wireless supply or distribution of electric power: using microwaves or radio frequency waves
H02J 50/80
Circuit arrangements or systems for wireless supply or distribution of electric power: involving the exchange of data, concerning supply or…