Moving Object, Wireless Power Feeding System, and Wireless Power Feeding Method
First Claim
1. A moving object comprising:
- a plurality of antennas configured to generate first electric signals and second electric signals from first radio waves and second radio waves transmitted from a power feeding device, respectively, wherein the first radio waves and the second radio waves are transmitted sequentially;
a signal processing circuit configured to extract data on positional relationships between the power feeding device and the plurality of antennas with usage of the first electric signals;
a secondary battery configured to store electric energy with usage of the second electric signals; and
an electric motor configured to receive the electric energy from the secondary battery.
1 Assignment
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Accused Products
Abstract
An object is to provide a moving object structure capable of reducing power loss caused when power is supplied from a power feeding device to a moving object by wireless communication. Another object is to provide a moving object structure capable of reducing the intensity of radio waves radiated to the surroundings. A moving object having a plurality of antennas receives radio waves transmitted from a power feeding device. At least one of the plurality of antennas is installed apart from the other antenna(s) of the moving object. Then, the radio waves transmitted from the power feeding device are received by all the plurality of antennas and converted into electric energy. Alternatively, the radio waves transmitted from the power feeding device are received by one or more selected from the plurality of antennas and converted into electric energy.
56 Citations
23 Claims
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1. A moving object comprising:
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a plurality of antennas configured to generate first electric signals and second electric signals from first radio waves and second radio waves transmitted from a power feeding device, respectively, wherein the first radio waves and the second radio waves are transmitted sequentially; a signal processing circuit configured to extract data on positional relationships between the power feeding device and the plurality of antennas with usage of the first electric signals; a secondary battery configured to store electric energy with usage of the second electric signals; and an electric motor configured to receive the electric energy from the secondary battery. - View Dependent Claims (2, 3, 4)
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5. A wireless power feeding system comprising:
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a power feeding device having a first antenna; and a moving object, wherein the moving object comprises; a plurality of second antennas configured to generate first electric signals and second electric signals from first radio waves and second radio waves transmitted from the first antenna, respectively, wherein the first radio waves and the second radio waves are transmitted sequentially; a signal processing circuit configured to extract data on positional relationships between the first antenna and the plurality of second antennas with usage of the first electric signals; and a secondary battery configured to store electric energy with usage of the second electric signals. - View Dependent Claims (6, 7, 8, 9)
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10. A wireless power feeding system comprising:
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a power feeding device having a plurality of first antennas; and a moving object, wherein the moving object comprises; a second antenna configured to generate first electric signals and a second electric signal from first radio waves and second radio waves transmitted from the plurality of first antennas, respectively, wherein the first radio waves and the second radio waves are transmitted sequentially; a signal processing circuit configured to extract data on positional relationships between the plurality of first antennas and the second antenna with usage of the first electric signals; and a secondary battery configured to store electric energy with usage of the second electric signal. - View Dependent Claims (11, 12, 13, 14)
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15. A wireless power feeding method comprising:
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generating first electric signals by a plurality of antennas of a moving object from first radio waves transmitted from a power feeding device; modifying a positional relationship between the power feeding device and the moving object based on intensities of the first electric signals; generating second electric signals by the plurality of antennas from second radio waves transmitted from the power feeding device; and storing electric energy in a secondary battery with usage of the second electric signals. - View Dependent Claims (16, 17, 18, 19)
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20. A wireless power feeding method comprising:
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generating first electric signals by a second antenna of a moving object from first radio waves transmitted from a plurality of first antennas of a power feeding device; selecting a first antenna from the plurality of first antennas based on intensities of the first electric signals; generating a second electric signal by the second antenna from second radio waves transmitted from the selected first antenna; and storing electric energy in a secondary battery with usage of the second electric signal. - View Dependent Claims (21, 22, 23)
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Specification