JP2013192420A - Non contact power supply device and non contact power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non contact power supply device which avoids adverse effects on human health and enables efficient power supply in a non contact power supply system which supplies power in a non contact manner, and to provide the non contact power supply system.SOLUTION: A non contact power supply control device 10 (10A, 10B) comprises: an electromagnetic force detection part 101 detecting an electromagnetic force radiated by a power supply device 20; an information processing part 102 which sets and stores an allowable electromagnetic force, compares the electromagnetic force detected by the electromagnetic force detection part with the allowable electromagnetic force, and stores the information; and a control information transmission part 103 transmitting control information used for controlling output electric power and an output frequency of the power supply device 20 from the obtained information to the power supply device 20. A non contact power supply system 1 (1A, 1B) uses the non contact power supply control device.

Description

  The present invention relates to a non-contact power feeding system that supplies power from a power feeding device to a power receiving device in a non-contact manner, and particularly to a non-contact power feeding system including a non-contact power feeding control device that enables safe protection of a human body. .

  Conventionally, a non-contact power feeding system that supplies electric power in a non-contact manner using electromagnetic induction or the like is known. For example, the non-contact power supply system shown in Patent Document 1 supplies power from a non-contact power supply unit included in the power supply apparatus to a non-contact power reception unit included in the power reception apparatus. At this time, the power receiving apparatus is notified of information such as the amount of power that can be supplied.

  Recently, it has been sought to extend the power transmission distance as a non-contact power supply, and a non-contact power supply method such as a radio wave method or an electromagnetic resonance method has been studied. However, in order to extend the power transmission distance, it is necessary to consider the safety of the magnetic field strength. For example, safety standards based on guidelines prepared by ICNIRP (International Non-Ionizing Radiation Protection Committee) are known for the effects on the human body of leakage electromagnetic fields emitted from magnetic resonance type non-contact power supply systems.

  This safety standard is determined from two factors: stimulation by an electric current caused by an alternating magnetic field in a human nerve and thermal action by an induced current generated independently of the nerve. That is, there are safety standards that limit exposure to electric and magnetic fields that adversely affect human health.

JP 2010-187495 A

  Safety standards based on guidelines prepared by the ICNIRP (International Commission on Non-Ionizing Radiation Protection) are not based on specific health hazard data, but are based on theoretical assumptions. As a result, the assessment of risks associated with exposure to magnetic fields in ICNIRP guidelines may change.

  Furthermore, when considering the safety of medical devices such as cardiac pacemakers, it is necessary to make a decision after considering a greater risk. The present invention has been devised to avoid such a risk.

  That is, the present invention provides a non-contact power supply control device and a non-contact power supply system that can efficiently supply power while avoiding adverse effects on peripheral equipment and human health in a non-contact power supply system that supplies power without contact. For the purpose.

  In order to achieve the above object, the present invention provides a non-contact power supply control device used in a non-contact power supply system that supplies power from a power supply device to a power receiving device in a non-contact manner, and detects an electromagnetic force radiated by the power supply device. A force detection function, a permissible electromagnetic force setting function for presetting a permissible electromagnetic force that can be safely supplied, a communication function for communicating information with a power supply device and a power reception device, and a set permissible electromagnetic force And a control function for controlling the output power and output frequency of the power feeding device from the electromagnetic force detected through the electromagnetic force function detection function.

  According to this configuration, when power is supplied from the power supply device to the power receiving device in a non-contact manner using an electromagnetic induction method, a radio wave method, an electromagnetic field resonance method, or the like, the power supply information and the power receiving device output by the power supply device are While detecting the received power reception information, the output power of the power supply device can be suppressed to an extent that the power supply apparatus can efficiently supply power while avoiding adverse effects on peripheral devices and the human body. Therefore, it is possible to obtain a non-contact power supply control device that avoids adverse effects on the health of peripheral devices and the human body and enables efficient power supply.

  In the non-contact power supply control device having the above-described configuration, the electromagnetic force detection unit that exhibits the electromagnetic force detection function, the allowable electromagnetic force setting function, the communication function, and the control function can be safely performed. The allowable electromagnetic force that can be supplied is set and stored, the set allowable electromagnetic force is compared with the electromagnetic force detected by the electromagnetic force detector, and an information processing unit that stores these information is obtained. And a control information transmission unit that transmits control information for controlling the output power and output frequency of the power supply apparatus from the information to the power supply apparatus. According to this configuration, the power output from the power feeding device can be set to a strength that can avoid adverse effects on peripheral devices and the health of the human body via the information processing unit and the control information transmission unit.

  According to the present invention, in the non-contact power supply control device having the above-described configuration, the device body includes a first attachment portion that can be attached to another device that is desired to limit the electromagnetic force to be exposed. According to this configuration, by attaching the non-contact power feeding control device to an arbitrary device via the first mounting portion, it is possible to perform non-contact power feeding while suppressing leakage electromagnetic force that does not adversely affect the device. .

  According to the present invention, in the non-contact power supply control device having the above-described configuration, the device main body includes a second attachment portion that can be attached to a human body. According to this configuration, by attaching the non-contact power feeding control device to the human body via the second mounting portion, the non-contact power feeding can be performed while suppressing the leakage electromagnetic force that does not adversely affect the human body.

  Further, the present invention is a non-contact power supply system that includes the non-contact power supply control device having the above-described configuration and supplies power from the power supply device to the power receiving device in a non-contact manner, and the power supply device is a control transmitted by the non-contact power supply control device. A control information receiving unit that receives information and an output control unit that controls output power and output frequency based on the received control information, and leakage electromagnetic force during power transfer between the power supply device and the power receiving device Is detected by the non-contact power supply control device, and the power supply device receives the information transmitted from the non-contact power supply control device, and adjusts the output power and the output frequency of the power supply device.

  According to this configuration, when power is supplied from the power supply device to the power receiving device in a non-contact manner using an electromagnetic induction method, a radio wave method, an electromagnetic resonance method, or the like, the output power of the power supply device is changed to the non-contact power supply control device. Thus, adverse effects on peripheral devices and the human body can be avoided, and the power supply can be suppressed to such an extent that power can be efficiently supplied. For this reason, it is possible to construct a non-contact power feeding system that avoids adverse effects on the health of peripheral devices and the human body and enables efficient power feeding.

  According to the present invention, in the non-contact power supply system having the above-described configuration, the power receiving device includes a control information transmission unit that transmits power reception information including the received power and frequency to a control information reception unit included in the power supply device. It is said. According to this configuration, it is possible to reliably check and compare the power supplied by the power feeding device and the power received by the power receiving device.

  According to the present invention, in the non-contact power supply system having the above-described configuration, the information transmitting unit included in the power receiving device transmits power information that can be received by the power receiving device main body. According to this configuration, power that can be received by the power receiving apparatus can be transmitted to the power feeding apparatus, and power can be supplied without waste.

  In the contactless power supply system having the above-described configuration, the output control unit included in the power supply apparatus compares control information transmitted from the contactless power supply control apparatus with power information transmitted from the power reception apparatus, and controls the control information. When the power information is different from the power information, it has a function of giving priority to output control using control information. According to this configuration, the allowable electromagnetic force that can be safely supplied to the non-contact power supply control device is set in advance, and the output power is controlled below this allowable electromagnetic force, thereby adversely affecting the health of peripheral devices and the human body. It can be reliably suppressed to no leakage electromagnetic force.

  In the contactless power supply system having the above configuration according to the present invention, the output control unit included in the power supply apparatus compares control information transmitted by the contactless power supply control apparatus with power information transmitted by the power reception apparatus, and more stringent power information. It has the function to select. According to this configuration, safety can be further improved by selecting more severe power information and performing output control.

  According to the present invention, in the contactless power supply system configured as described above, the contactless power supply control device includes a timer that measures a time during which an allowable electromagnetic force that can be safely supplied is supplied, and the predetermined time is exceeded via the timer. When it is detected that the allowable electromagnetic force is continuously supplied, an alarm is issued. According to this configuration, it is possible to reliably notify the surroundings that the state where the detection value of the leakage electromagnetic force is full is continued.

  According to the present invention, in the contactless power feeding system having the above-described configuration, the alarm is an alarm of light, sound, vibration, or a combination thereof. According to this configuration, it is possible to reliably notify even in dark or noisy environments, and it is possible to recognize that the detection value of leakage electromagnetic force continues to the full limit regardless of the equipment environment or work environment become.

  According to the present invention, the electromagnetic force detection function for detecting the electromagnetic force radiated by the power feeding device, the allowable electromagnetic force setting function for presetting the allowable electromagnetic force that can be safely supplied, the set allowable electromagnetic force and the electromagnetic force Since it is configured to perform non-contact power feeding through a non-contact power feeding control device equipped with a control function that controls the output power and output frequency of the power feeding device from the electromagnetic force detected by the force function detection unit, non-contact In the non-contact power supply system that supplies electric power in the above-described manner, it is possible to obtain a non-contact power supply control device and a non-contact power supply system that can efficiently supply power while avoiding adverse effects on the health of peripheral devices and human bodies.

It is a schematic explanatory drawing which shows the whole structure of the non-contact electric power feeding system provided with the non-contact electric power feeding control apparatus which concerns on this invention. 1 is a block diagram showing a first embodiment of a non-contact power feeding system according to the present invention. It is a block diagram which shows 2nd embodiment of the non-contact electric power feeding system which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings. Moreover, the same code | symbol is used about the same structural member, and detailed description is abbreviate | omitted suitably.

  First, the whole structure of the non-contact electric power feeding system provided with the non-contact electric power feeding control apparatus which concerns on this invention is demonstrated using FIG.

  A non-contact power feeding system 1 illustrated in FIG. 1 is a power feeding system that supplies power from the power feeding device 20 to the power receiving device 30 in a contactless manner. In addition, the power supply system includes a non-contact power supply control device 10 that preliminarily defines an allowable strength of the electromagnetic force output from the power supply device 20 and that can detect an actually flowing electromagnetic force. As a method of supplying power without contact, for example, electromagnetic induction can be used. In addition to the electromagnetic induction method, a radio wave method (microwave power transmission method) that converts current into electromagnetic waves and transmits / receives it via an antenna, and an electromagnetic field resonance method (electromagnetic resonance coupling method) that uses electromagnetic field resonance phenomena. Alternatively, a technique such as a laser power transmission method using a laser can be used.

  The contactless power supply system 1 according to the present embodiment uses the various contactless power supply methods described above to generate electromagnetic force leaking in the surrounding space when power is supplied from the power supply device 20 to the power receiving device 30 in a contactless manner. In addition to the detection, the electromagnetic force having a permissible strength is supplied in advance. That is, the contactless power supply control device 10 includes an electromagnetic force detection function for detecting an electromagnetic force radiated by the power supply device 20, an allowable electromagnetic force setting function for presetting an allowable electromagnetic force that can be safely supplied, and a power supply device. For controlling the output power and the output frequency of the power feeding device 20 from the communication function for communicating information between the devices and the power receiving device and the electromagnetic force detected through the set allowable electromagnetic force and electromagnetic force detecting function And a function.

  As a specific example, an electromagnetic force detection unit that exhibits an electromagnetic force detection function, and an allowable electromagnetic force that can be safely supplied to exhibit an allowable electromagnetic force setting function, a communication function, and a control function are set and stored. Compare the set allowable electromagnetic force with the electromagnetic force detected by the electromagnetic force detector, and control the output power and output frequency of the power feeding device from the information processing unit that stores these information and the obtained information And a control information transmitting unit that transmits control information to the power feeding device.

  By using this non-contact power supply control device 10, it is possible to detect a leakage electromagnetic force while power is being transferred between the power transmission unit 201 of the power supply device 20 and the power reception unit 301 of the power reception device 30. It becomes possible to control the output while suppressing the leakage electromagnetic force within a reference value allowed in advance. That is, according to the present embodiment, by setting an allowable electromagnetic force in the contactless power supply control device 10 in advance, the strength of the leakage electromagnetic force in the space region can be suppressed to a safe level in advance. It is possible to obtain a non-contact power supply control device and a non-contact power supply system that avoids adverse effects on the health of peripheral devices and human bodies and enables efficient power supply.

  Therefore, it is desirable that the non-contact power supply control device 10 has a permissible electromagnetic force setting function that can arbitrarily set the permissible electromagnetic force and has portability. Having portability means that it can be easily installed in an area where power is transferred between the power feeding device 20 and the power receiving device 30. Further, it is more preferable if it can be easily attached to a device or a human body that is desired to be protected from leakage electromagnetic force.

  For example, the first attachment portion 11 that can be attached to another device that is desired to limit the electromagnetic force to be exposed is preferably provided in the device main body of the contactless power supply control device 10. Moreover, it is good to provide the said apparatus main body with the 2nd attachment part 12 which can be attached to a human body.

  The first mounting portion 11 has, for example, a mounting plate configuration that can be screwed to a device that is desired to limit the leakage electromagnetic force in the surrounding environment. Moreover, the 2nd attachment part 12 is the structure provided with the band which can be mounted | worn with a person's arm part or trunk | drum, for example. However, these fixing methods are not particularly limited, and any other method may be used as long as it can be easily attached to a device or a human body to be protected from leakage electromagnetic force.

  The non-contact power feeding system 1 including the non-contact power feeding control device 10 can preliminarily define the strength of the electromagnetic force leaking into a space where there is a device or a person that is desired to limit the leakage electromagnetic force in the surrounding environment. At the same time, the leakage electromagnetic force that is actually flowing can be reliably detected, so that the output power of the power feeding device is avoided to the detrimental effect on peripheral devices and the human body, and is suppressed to the extent that power can be fed efficiently. Can do. Therefore, it is possible to obtain a non-contact power supply control device that avoids adverse effects on human health and enables efficient power supply.

  Next, specific embodiments of the non-contact power feeding system will be described with reference to FIGS. First, the non-contact electric power feeding system 1A of 1st embodiment is demonstrated using FIG.

  A non-contact power feeding system 1A of the first embodiment shown in FIG. 2 includes a non-contact power feeding control device 10A, a power feeding device 20A, and a power receiving device 30A, and is configured to feed and receive a pre-specified allowable electromagnetic force that can be supplied. Is done.

  The power feeding apparatus 20 </ b> A includes a power transmission unit 201, an output control unit 202, and a control information reception unit 203. The power receiving device 30 </ b> A includes a power reception unit 301, a reception information processing unit 302, and a control information transmission unit 303. The non-contact power supply control device 10 </ b> A includes an electromagnetic force detection unit 101, an information processing unit 102, and a control information transmission unit 103.

  Then, power 401 is transferred between the power transmission unit 201 and the power reception unit 301. The received power information (power reception information) is processed by the reception information processing unit 302 and transmitted from the control information transmission unit 303 to the power feeding apparatus 20A, that is, to the control information reception unit 203. Further, if necessary, in addition to the power reception information including the received power and frequency, the power information that can be received by the power receiving apparatus main body and the control information 501 including the permissible electromagnetic force that can be supplied in advance are transmitted. To do.

  The control information receiving unit 203 that has received the control information 501 controls the output of the power transmission unit 201 through the output control unit 202. In addition, it receives control information 502 transmitted by the control information transmission unit 103 of the contactless power supply control device 10 </ b> A, and controls the output of the power transmission unit 201. 10 A of non-contact electric power feeding control apparatuses detect the electromagnetic force which leaks from transmission / reception of the electric power currently performed between the electric power feeding apparatus 20A and the electric power receiving apparatus 30A in the electromagnetic force detection part 101, and the detected result is an information processing part. Processing is performed at 102, and control information 502 is generated and transmitted.

  The control information 502 is, for example, an allowable electromagnetic force that is set and stored in advance and can be supplied safely, and is obtained by comparing the electromagnetic force detected by the electromagnetic force detector 101 with a preset allowable electromagnetic force. This is control information corresponding to the electromagnetic force that can be fed. That is, when it is detected that the electromagnetic force detected by the electromagnetic force detection unit 101 is larger than the preset allowable electromagnetic force, the electromagnetic force to be supplied acts to be suppressed to the allowable electromagnetic force.

  If it is detected that the electromagnetic force detected by the electromagnetic force detection unit 101 is smaller than the preset allowable electromagnetic force, the state is maintained as it is. In this case, it is also possible to increase the electromagnetic force to be supplied until the allowable electromagnetic force is reached.

  As described above, the allowable electromagnetic force that can be safely supplied is set and stored in the information processing unit 102 in advance. The information processing unit 102 compares the set allowable electromagnetic force with the electromagnetic force detected by the electromagnetic force detection unit 101, and stores these pieces of information. Then, control information 502 for controlling the output power and output frequency of the power feeding apparatus 20A is generated and transmitted from these pieces of information.

  As described above, in the non-contact power feeding system 1A according to the present embodiment, the non-contact power feeding control device 10A detects the leakage electromagnetic force while power is being transferred between the power feeding device 20A and the power receiving device 30A. The power feeding device 20A receives information transmitted from the contact power feeding control device 10A, and adjusts the output power and output frequency of the power feeding device 20A.

  Next, the non-contact electric power feeding system 1B of 2nd embodiment is demonstrated using FIG.

  The non-contact power feeding system 1B of the second embodiment shown in FIG. 3 includes a non-contact power feeding control device 10B, a power feeding device 20B, and a power receiving device 30B, and compares a predetermined reference value with a detected leakage electromagnetic force. When the leakage electromagnetic force is higher than the reference value, the feedback is performed to reduce the output power of the power feeding device 20B.

  That is, the non-contact power supply control device 10B includes an electromagnetic force detection unit 101, an information processing unit 102, and a control information transmission unit 103. The information processing unit 102 includes a reference value setting unit 102b that determines a reference value, a reference value, A comparison unit 102a that compares the detected leakage electromagnetic force is provided.

  Then, by applying a feedback loop that outputs control information 502A that lowers the output power of the power feeding device 20B when the leakage electromagnetic force becomes higher than the reference value, the leakage electromagnetic force on the non-contact power feeding control device 10B, that is, in the peripheral region Repeatedly control the force to be constant. In other words, the control information transmission unit 103 transmits a signal for attenuating the output power to the control information reception unit 203 of the power feeding apparatus 20B.

  The control information receiving unit 203 of the power feeding device 20B receives control information from both the non-contact power feeding control device 10B and the power receiving device 30B and executes the received command, but the commands of the non-contact power feeding control device 10B and the power receiving device 30B are If they are different, priority determination unit 203a gives priority to control information from non-contact power supply control device 10B.

  In addition, when it falls into an uncontrollable situation, humans can easily detect sound, light, vibration, etc. by the operation of the timer 104 that detects that the time when the leakage electromagnetic force is higher than the reference value continues for an arbitrary time or longer. Issue an alarm that can.

  That is, the non-contact power supply control device 10B includes a timer 104 and an alarm generation unit 105 that measure a time during which a leakage electromagnetic force exceeding the allowable electromagnetic force that can be safely supplied is detected. When it is detected that excessive leakage electromagnetic force continues to be supplied, a warning signal is output from the alarm generation unit 105 to issue a predetermined alarm. This alarm is preferably an alarm of light, sound, vibration, or a combination thereof.

  As described above, the control information 502 is, for example, control information corresponding to the allowable electromagnetic force that can be safely supplied and is set and stored in advance, and the electromagnetic force detected by the electromagnetic force detector 101 and the allowable allowance set in advance. This is control information corresponding to the electromagnetic force that can be fed, obtained by comparing the electromagnetic force. That is, when it is detected that the electromagnetic force detected by the electromagnetic force detection unit 101 is larger than the preset allowable electromagnetic force, the electromagnetic force to be supplied acts to be suppressed to the allowable electromagnetic force.

  If it is detected that the electromagnetic force detected by the electromagnetic force detection unit 101 is smaller than the preset allowable electromagnetic force, the state is maintained as it is. In this case, it is also possible to increase the electromagnetic force to be supplied until the allowable electromagnetic force is reached. That is, the priority determination unit 203a may prioritize the signal from the non-contact power supply control device 10B.

  As described above, the allowable electromagnetic force that can be safely supplied is preset in the reference value setting unit 102b of the information processing unit 102 and stored as a reference value. Further, the set allowable electromagnetic force is compared with the leakage electromagnetic force detected by the electromagnetic force detection unit 101 via the comparison unit 102a of the information processing unit 102, and these pieces of information are stored. And the control information 502 which controls the output electric power and output frequency of the electric power feeder 20B is produced | generated and transmitted from these information.

  In addition, when it is detected that excessive leakage electromagnetic force exceeding the allowable electromagnetic force continues to be supplied over the predetermined time via the timer 104, an alarm is issued, so that the leakage electromagnetic force exceeds the reference value. You can be surely informed.

  Therefore, according to the non-contact power feeding system 1B according to the present embodiment, by controlling the output power and radiation characteristics of the power feeding device 20B, it is possible to avoid an undesirable effect caused by the non-contact power feeding using electromagnetic induction. Can do.

  Further, as described above, the non-contact power supply control device 10 (10A, 10B) can be attached via the first attachment portion 11 and the second attachment portion 12, thereby having portability, Or it becomes easy to attach to the apparatus which wants to protect from leakage electromagnetic force. Then, the electromagnetic force detected by the contactless power supply control device 10 (10A, 10B) is fed back to the power supply device 20 (20A, 20B) on the power supply side that radiates the electromagnetic force. By controlling the output power and radiation characteristics of the power feeding device 20 (20A, 20B) so that is less than or equal to a certain value, it is possible to avoid undesirable effects caused by non-contact power feeding.

  Moreover, it becomes possible to avoid a crisis by the non-contact electric power feeding control apparatus 10 (10A, 10B) issuing a warning with respect to the event which cannot be controlled by this feedback loop. Furthermore, when there is no target to be protected, it is not necessary to set an allowable electromagnetic force, so that a large amount of power can be supplied and efficient charging can be performed in a short time.

  As described above, according to the non-contact power supply control device 10 (10A, 10B) according to the present invention having the electromagnetic force detection function, the allowable electromagnetic force setting function, the communication function, and the control function, the power reception device receives the power reception device. When the electric power is supplied in a non-contact manner, it is possible to obtain a non-contact electric power supply control device that avoids adverse effects on peripheral devices and the human body and can efficiently supply electric power.

  Moreover, according to the non-contact power feeding system 1 (1A, 1B) according to the present invention including the non-contact power feeding control device 10 (10A, 10B), it is possible to efficiently feed power while avoiding adverse effects on peripheral devices and the human body. By using the non-contact power supply control device, the leakage electromagnetic force can be suppressed to the extent that it does not adversely affect peripheral devices and the human body, and a safe non-contact power supply system can be obtained.

  Therefore, the non-contact power supply control device and the non-contact power supply system according to the present invention are preferably used for a non-contact power supply system used in a work environment in which it is desired to avoid adverse effects on devices and human bodies that are to be protected from leakage electromagnetic force. It becomes possible.

1, 1A, 1B Non-contact power feeding system 10, 10A, 10B Non-contact power feeding control device 20, 20A, 20B Power feeding device 30, 30A, 30B Power receiving device 101 Electromagnetic force detection unit 102 Information processing unit 103 Control information transmission unit 201 Power transmission Unit 202 output control unit 203 control information reception unit 301 power reception unit 302 reception information processing unit 303 control information transmission unit

Claims (11)

A non-contact power supply control device used in a non-contact power supply system that supplies power from a power supply device to a power receiving device in a non-contact manner,
Communicates information between the electromagnetic force detection function for detecting the electromagnetic force radiated by the power supply device, the allowable electromagnetic force setting function for presetting the allowable electromagnetic force that can be safely supplied, and the power supply device and the power receiving device And a control function for controlling the output power and output frequency of the power feeding device from the set allowable electromagnetic force and the electromagnetic force detected via the electromagnetic force detection function. Contact power supply control device. The electromagnetic force detection unit that exhibits the electromagnetic force detection function, and the allowable electromagnetic force setting function, the communication function, and the control function, and the allowable electromagnetic force that can be safely supplied are set, stored, and set. An information processing unit that compares the permissible electromagnetic force detected with the electromagnetic force detected by the electromagnetic force detection unit and stores the information, and a control that controls the output power and the output frequency of the power feeding apparatus from the obtained information The contactless power supply control device according to claim 1, further comprising: a control information transmission unit that transmits information to the power supply device. The non-contact power supply control device according to claim 1, wherein the device main body includes a first attachment portion that can be attached to another device that is desired to limit the electromagnetic force to be exposed. The contactless power supply control device according to claim 1, wherein the device main body includes a second attachment portion that can be attached to a human body. A non-contact power feeding system comprising the non-contact power feeding control device according to any one of claims 1 to 4 and supplying power in a non-contact manner from a power feeding device to a power receiving device,
The power feeding device includes a control information receiving unit that receives control information transmitted by the non-contact power feeding control device, and an output control unit that controls output power and output frequency based on the received control information.
The non-contact power feeding control device detects the leakage electromagnetic force while power is being transferred between the power feeding device and the power receiving device, and the power feeding device receives the information transmitted from the non-contact power feeding control device. The non-contact power feeding system characterized by adjusting the output power and output frequency of the. The power receiving device includes a control information transmission unit that transmits power reception information including received power and frequency to the power supply device, and the control information reception unit included in the power supply device receives the power reception information. Contactless power supply system described in 1. The non-contact power feeding system according to claim 6, wherein the control information transmitting unit included in the power receiving device transmits power information that can be received by the power receiving device main body. The output control unit included in the power feeding device compares the control information transmitted by the non-contact power feeding control device with the power information transmitted by the power receiving device, and if the control information differs from the power information, the control information The non-contact power feeding system according to claim 7, which has a function of giving priority to the used output control. The output control unit included in the power supply device has a function of comparing control information transmitted from the non-contact power supply control device with power information transmitted from the power receiving device, and selecting more severe power information. The non-contact power feeding system according to 7. The non-contact power supply control device includes a timer that measures the time during which power is transferred between the power supply device and the power receiving device, and that the allowable electromagnetic force continues to be supplied over a predetermined time via this timer. 10. The non-contact power feeding system according to claim 5, wherein an alarm is generated when detected. The contactless power supply control device according to claim 10, wherein the alarm is an alarm of light, sound, vibration, or a combination thereof.

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