WO2017109963A1 - 給電装置、受電装置、給電システム、給電方法、電源管理方法、給電プログラム及び電源管理プログラム - Google Patents
給電装置、受電装置、給電システム、給電方法、電源管理方法、給電プログラム及び電源管理プログラム Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 69
- 238000007726 management method Methods 0.000 title claims description 67
- 238000004891 communication Methods 0.000 claims abstract description 188
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000012795 verification Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 29
- 230000004308 accommodation Effects 0.000 description 24
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 21
- 238000001514 detection method Methods 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
Definitions
- the present invention relates to a power supply device of a master station that is a wireless device that performs wireless communication and wireless power transmission, and a slave station that is a wireless communication device that is powered by wireless power transmission from the master station and wirelessly performs data communication with the master station. Power receiving apparatus.
- Patent Document 1 discloses a non-contact power transmission system.
- the transmission time of power from the power transmission unit to the power receiving device is divided into a plurality of periods for each predetermined period.
- Each power receiving apparatus is assigned to one of the divided periods, and power is transmitted in the assigned period. According to such a system, it is possible to stably transmit power to each power receiving apparatus.
- the power receiving device is a sensor terminal
- the slave station When the slave station operates intermittently, if the slave station adopts RTC (Real Time Clock) time management, the intermittent cycle of the slave station may be shifted. For this reason, when the slave station communicates in time synchronization, the communication timing is shifted, so the number of synchronization re-drawings increases, leading to an increase in power consumption.
- RTC Real Time Clock
- An object of the present invention is to reduce power consumption of a wireless communication apparatus that is wirelessly powered.
- the power feeding device of the present invention is In a power feeding device that transmits a power feeding signal for supplying power to a power receiving device, A power supply side storage unit storing time information for specifying a start time at which data communication with the power receiving apparatus should be started; A power supply side determination unit that determines whether the start time specified by the time information has been reached and transmits the power supply signal when it is determined that the start time has been reached;
- the present invention includes a power supply side storage unit that stores time information for specifying a start time at which data communication with a power receiving apparatus is to be started, a power supply side determination unit that transmits a power supply signal based on the time information of the power supply side storage unit, Therefore, it is possible to reduce the power consumption of the wireless communication device that is wirelessly powered.
- FIG. 3 is a diagram of the first embodiment and shows a configuration of the power feeding system 1.
- 2 is a functional block diagram of the master station 10 in the diagram of the first embodiment.
- FIG. 2 is a diagram of the hardware configuration of the master station 10 in the first embodiment.
- FIG. 2 is a functional block diagram of a slave station 20 in the diagram of the first embodiment.
- FIG. 3 is a diagram illustrating the hardware configuration of the slave station 20 in the first embodiment.
- FIG. 3 is a sequence diagram illustrating exchange between a master station 10 and a plurality of slave stations 20 in the diagram of the first embodiment.
- FIG. 2 is a flowchart of the operation of the master station 10 in the diagram of the first embodiment.
- FIG. 3 is a diagram illustrating the operation of the slave station 20 in the diagram of the first embodiment.
- FIG. 9 is a diagram of the second embodiment, and is a sequence diagram illustrating exchange between a master station 10A and a plurality of slave stations 20A.
- 5 is a flowchart of the operation of the master station 10A in the diagram of the second embodiment.
- FIG. 9 is a flowchart of the operation of the slave station 20A in the diagram of the second embodiment.
- FIG. 1 is a diagram illustrating a power feeding system 1 according to the first embodiment.
- the power feeding system 1 includes a master station 10 and a plurality of slave stations 20.
- the master station is a power feeding device, and each slave station is a power receiving device.
- FIG. 1 shows N slave stations of slave stations 20-1 to 20-N.
- the master station 10 and each slave station 20 perform data communication wirelessly. Further, the master station 10 wirelessly transmits a power supply signal for supplying power to the slave station 20.
- FIG. 2 is a functional block diagram of the master station 10.
- the master station 10 includes a data communication unit 11 that performs data communication with each slave station 20 and a power supply unit 12 that transmits a power supply signal.
- the data communication unit 11 transmits a data signal to the slave station 20 and receives a data signal from the slave station, a signal processing unit 11b that processes the data signal and transfers the data to an external device, and a storage unit 11c. And an antenna 11d for data communication.
- the communication unit 11 a and the signal processing unit 11 b constitute a power supply side data communication unit 103.
- the power supply side data communication unit 103 performs data communication with the power receiving apparatus.
- the power supply unit 12 transmits a data communication command to the power supply signal generation unit 12a that generates a power supply signal, the communication unit 11a, and causes the power supply signal generation unit 12a to start power supply.
- a wake-up time recording unit 12c for storing the wake-up times of all the slave stations of the slave station 20-N and a power feeding antenna 12d are provided.
- the wake-up time recording unit 12 c is the power supply side storage unit 101.
- the power supply signal generation unit 12 a and the wake-up timing management unit 12 b constitute a power supply side determination unit 102.
- FIG. 3 is a hardware configuration diagram of the master station 10.
- the master station 10 includes a high frequency circuit 81, a central processing unit 82, a RAM (Random Access Memory) 83, a high frequency circuit 84, a central processing unit 85, an oscillator 86, and a RAM 87 as hardware.
- the high frequency circuit is referred to as an RF circuit
- the central processing unit is referred to as CP.
- the data communication unit 11 includes an RF circuit 81, a CPU 82, and a RAM 83.
- the power feeding unit 12 includes an RF circuit 84, a CPU 85, an oscillator 86, and a RAM 87.
- the correspondence with the functional block diagram is as follows.
- the function of the communication unit 11a is realized by the RF circuit 81.
- the function of the signal processing unit 11b is realized by the CPU 82.
- the function of the storage unit 11c is realized by the RAM 83.
- the function of the power supply signal generation unit 12a is realized by the RF circuit 84 and the CPU 85.
- the function of the wake-up timing management unit 12b is realized by the CPU 85 and the oscillator 86.
- the function of the wake-up time recording unit 12c is realized by the RAM 87.
- FIG. 4 is a functional block diagram of the slave station 20.
- the slave station 20 includes a data communication unit 21 that performs data communication with the master station 10 and a power supply unit 22 that supplies power to the slave station 20 in response to a power supply signal from the master station 10.
- the data communication unit 21 performs data communication with the communication unit 11 a of the master station 10. When the data communication unit 21 does not perform data communication with the master station 10, the power of the data communication unit 21 is turned off.
- the data communication unit 21 transmits data to the master station 10 and receives data from the master station 10; a signal processing unit 21b that processes a wireless data signal and transfers the data to an external device; and data communication Antenna 21c is provided.
- the power feeding unit 22 includes an RF-DC conversion unit 22a, a wake-up time management unit 22b, a wake-up time storage unit 22c, and an antenna 22d that receives a power feed signal transmitted by the master station 10.
- the wake-up time management unit 22b includes a clock 22b-1.
- the RF-DC converter 22a performs microwave-DC conversion (RF-DC conversion) on the feed signal transmitted from the master station 10 and received by the antenna 22d, and supplies the converted DC power to the own station. To do.
- the wake-up time storage unit 22c stores the wake-up time.
- the wake-up time management unit 22b observes the supply time of the power supplied to the RF-DC conversion unit 22a by the power supply signal, compares it with the time when the own station wakes up, and is within the allowable value stored in the wake-up time storage unit 22c. If so, the data communication unit 21 is turned on to start data communication. Further, the wake-up time stored in the wake-up time storage unit 22c is corrected to the power feeding time.
- the wake-up time storage unit 22 c is the power receiving side storage unit 201.
- the RF-DC conversion unit 22a and the wake-up time management unit 22b constitute a power receiving side determination unit 202.
- the data communication unit 21 is a power receiving side data communication unit 203.
- FIG. 5 is a hardware configuration diagram of the slave station 20-1.
- the slave station 20 includes an RF circuit 91, a CPU 92, a rectifier circuit 93, a DC / DC 94, a storage capacitor 95, a CPU 96, an oscillator 97, and a RAM 98 as hardware.
- the DC / DC 94 is a converter that converts a DC voltage into a different DC voltage.
- the data communication unit 21 includes an RF circuit 91 and a CPU 92.
- the power feeding unit 22 includes a rectifier circuit 93, a DC / DC 94, a storage capacitor 95, a CPU 96, an oscillator 97, and a RAM 98.
- the correspondence with the functional block diagram is as follows.
- the function of the communication unit 21a is realized by the RF circuit 91.
- the function of the signal processing unit 21b is realized by the CPU 92.
- the function of the RF-DC converter 22a is realized by the rectifier circuit 93, the DC / DC 94, and the storage capacitor 95.
- the function of the wake-up time management unit 22b is realized by the CPU 96 and the oscillator 97.
- the function of the wake-up time storage unit 22c is realized by the RAM 98.
- FIG. 6 is a sequence diagram showing exchanges between the master station 10 and the plurality of slave stations 20.
- FIG. 7 is a flowchart of the operation of the master station 10.
- FIG. 8 is a flowchart showing an operation example of the slave station 20. The operation of communication between the master station 10 and the plurality of slave stations 20 will be described with reference to FIGS.
- the master station 10 collects wake-up timing information from each of the N slave stations 20.
- the master station 10 transmits a power feeding signal by the first wireless power feeding.
- the data communication unit 21 and the power supply unit 22 are activated.
- the data communication unit 21 of each slave station 20 transmits the wake-up timing information stored in the wake-up time storage unit 22c to the master station 10, and after transmission, each slave station 20 The data communication unit 21 is turned off.
- the accommodation process S001 transmits a power supply signal when the master station 10 determines that there is a slave station 20 that has reached the wake-up time. That is, when it is determined that there is a slave station 20 that has reached the wake-up time, the master station 10 transmits a second power supply signal by wireless power supply in step S05.
- the wireless power supply in step S05 is a case where it is determined that the master station 10 has reached the wake-up time of any of the slave stations 20 based on the wake-up timing information of each slave station 20 collected in steps S02 to S04. In this case, it is sufficient for the master station 10 to recognize the existence of the slave station that has reached the wake-up time, and it is not necessary to specifically recognize which slave station 20 has reached the wake-up time.
- the wireless power supply in step S05 indicates a case where the slave station 20 that has reached the wake-up time is the slave station 20-1. 6 shows the case where the slave station 20-1 has reached the wake-up time in the power supply process S002. However, if the master station 10 determines that any of the slave stations 20 has reached the wake-up time, the power supply signal (step S05) is transmitted.
- the operation of the slave station 20 is different from the operation of the accommodation process S001.
- the wireless power supply in the accommodation process S001 when the slave station 20 receives a power supply signal, the data communication unit 21 and the power supply unit 22 are turned on when the power supply signal is received, and the data communication unit 21 sends the wake-up timing information to the master station. 10 to send.
- the power supply unit 22 is activated in the slave station 20, and the data communication unit 21 is in a power-off state (steps S06-1, S06-2, S06-N).
- the wake-up time management unit 22b determines whether the time supplied by the master station 10 matches the time specified from the wake-up timing information stored in the wake-up time storage unit 22c (steps S07-1 and S07-2). , S07-N). If the wake-up time management unit 22b determines that they match, the data communication unit 21 is turned on, and the data communication unit 21 starts data communication with the master station 10 (step S08-1). When determining that they do not match, the wake-up time management unit 22b maintains the power-off state of the data communication unit 21 (steps S09-2 and S09-N).
- the power supply signals in the accommodation process S001 and the power supply process S002 are the same. That is, the power supply signal transmitted in the accommodation process S001 and the power supply process S002 is the same for each slave station 20.
- this power supply signal may be referred to as a common power supply signal.
- Each slave station 20 distinguishes the power supply signal of the accommodation process S001 and the power supply signal of the power supply process S002 as follows.
- the wake-up time management unit 22b of the slave station 20 can determine whether the wireless power feeding in the accommodation process S001 or the wireless power feeding in the power feeding process S002. Specifically, the wake-up time management unit 22b records the number N of receptions of the power feeding signal in the wake-up time storage unit 22c.
- step S10 in the master station 10, the data communication unit 11 and the power supply unit 12 are powered on, and the data communication unit 11 and the power supply unit 12 are activated.
- step S11 the power supply signal generation unit 12a transmits a power supply signal.
- Step S11 corresponds to step S01.
- the data communication unit 21 and the power supply unit 22 are activated, and the data communication unit 21 transmits the wake-up timing information.
- the wake-up time management unit 22b of the slave station 20 detects that the first power supply signal has been received via the RF-DC conversion unit 22a, and is stored in the wake-up time storage unit 22c triggered by the detection.
- the wake-up timing information is transmitted using the communication unit 21a.
- the communication unit 11a receives the wake-up timing information transmitted from each slave station 20 via the antenna 11d.
- the wake-up timing information includes wake-up time, wake-up interval, and identification number information for identifying the slave station 20.
- the identification number is an example of identification information. As long as the slave station can be specified, it may be other than the identification number.
- the wake-up timing information is time information that specifies a start time at which data communication with the power receiving apparatus should be started.
- the wake-up time is information such as 15:00:00
- the wake-up interval is information such as 5 hours.
- the data communication unit 21 is powered off.
- the identification number is included in the wake-up timing information, but a configuration in which the wake-up timing information does not include the identification information may be used.
- the wake-up timing information does not include identification information
- the master station 10 that has received the wake-up timing information does not transmit response data
- the slave station 20 that has transmitted the wake-up timing information transmits data after transmitting the wake-up timing information.
- the power supply of the communication unit 21 is turned off.
- the signal processing unit 11b After receiving the wake-up timing information by the communication unit 11a, the signal processing unit 11b reads the identification number, the wake-up time, and the wake-up interval from the wake-up timing information and transmits them to the wake-up timing management unit 12b.
- step S13 the wake-up timing management unit 12b stores the identification number, wake-up time, and wake-up interval of the slave station 20 in the wake-up time recording unit 12c.
- step S14 the signal processing unit 11b increments the accommodation number M of the slave stations 20 by one.
- step S15 the signal processing unit 11b determines whether the accommodated number S, which is the number of all slave stations, matches the accommodated number M. If the accommodated number S and the accommodated number M do not match, the operations in steps S12 to S14 are repeated.
- the accommodation number S is stored in the storage unit 11c.
- the signal processing unit 11b records the accommodation number M in the storage unit 11c, reads the stored accommodation number M and the set accommodation number S from the storage unit 11c, compares them, and performs the determination in step S15.
- step S15 when the signal processing unit 11b determines that the accommodated number M matches the accommodated number S, the master station 10 enters a reception standby state in step S16.
- the wake-up timing management unit 12b uses the clock 12b-1 to select one of the plurality of slave stations using the wake-up time and wake-up interval of the plurality of slave stations recorded in the wake-up time recording unit 12c. It is determined whether the wake-up timing, which is the time to wake up, coincides with the current clock.
- the wake-up timing is a time obtained by wake-up time + (integer ⁇ wake-up interval). The integer must be zero or greater.
- the clock 12b-1 is realized by the CPU 85 and the oscillator 86.
- step S18 the power feed signal generation unit 12a Start signal transmission.
- the wake-up time of the slave station is a start time at which data communication should be started. In this example, it is assumed that the wake-up time of the slave station 20-1 matches the current time of the clock.
- step S19 the master station 10 performs data communication with the slave station 20-1. Specifically, when the slave station 20-1 receives the power supply signal in step S18, the slave station 20-1 transmits a data signal. This operation corresponds to step S08-1 in FIG.
- the communication unit 11a of the master station 10 receives the data signal transmitted from the slave station 20-1 via the antenna 11d, and the signal processing unit 11b processes the received data signal. When the data communication with the slave station 20 is completed, the process returns to step S16.
- step S20 when each slave station 20 receives a power supply signal (corresponding to the accommodation process S001) from the master station 10, the data communication unit 21 and the power supply unit 22 are powered on.
- step S21 the data communication unit 21 transmits the wake-up timing information to the master station 10.
- the signal processing unit 21b acquires the wake-up timing information stored in the wake-up time storage unit 22c via the wake-up time management unit 22b, and transmits the acquired wake-up timing information through the communication unit 21a.
- the wake-up timing information includes the wake-up time and the wake-up interval.
- step S22 when the response data is received from the master station 10 that has received the wake-up timing information, the slave station 20 turns off the data communication unit 21 and turns on the power supply unit 22 only. Specifically, the signal processing unit 21b determines whether response data addressed to itself is received. When the signal processing unit 21b determines that the response data has been received, the wake-up time management unit 22b turns off the data communication unit 21.
- step S23 the wake-up time management unit 22b determines whether wireless power is supplied from the master station 10 based on the output signal of the RF-DC conversion unit 22a. That is, the wake-up time management unit 22b determines whether a power supply signal has been received.
- the wake-up time management unit 22b uses the clock 22b-1 to supply the power and the wake-up time storage unit.
- the wake-up timing specified from the wake-up timing information preset in 22c is compared.
- the wake-up timing is a time obtained by wake-up time + (integer ⁇ wake-up interval).
- the integer must be zero or greater.
- the wake-up time and the wake-up interval are determination information for determining whether to start data communication. In the determination information, the wake-up time and the wake-up interval are also time information for determining whether to start data communication.
- the clock 22b-1 is realized by the CPU 96 and the oscillator 97.
- step S24 the wake-up time management unit 22b determines whether the time difference between the time when power is supplied and the wake-up timing is within ⁇ M seconds, which is a preset allowable range. ⁇ M seconds are stored in the wake-up time storage unit 22c as data.
- step S24 If within ⁇ M seconds (YES in step S24), the wake-up time management unit 22b turns on the data communication unit 21 in step S25.
- the wake-up time management unit 22b overwrites the wake-up time stored as part of the “wake-up timing information” in the wake-up time storage unit 22c with the power feeding time (step S26).
- the power feeding time is the time when the wake-up time management unit 22b turns on the data communication unit 21 in step S25.
- another time may be set as the power feeding time.
- the time of step S23 when the wake-up time management unit 22b detects the reception of the power feeding signal via the RF-DC conversion unit 22a may be used.
- step S27 in the data communication unit 21 that is turned on, the signal processing unit 21b performs data communication with the data communication unit 11 of the master station 10.
- step S28 when the data communication by the signal processing unit 21b is completed, the wake-up time management unit 22b turns off the power of the data communication unit 21. Further, the wake-up time management unit 22b places the power supply unit 22 in a standby state. Steps S22 to S28 are repeated.
- the master station 10 manages the wake-up timing of the slave station 20 and performs wireless power feeding according to the wake-up timing of the slave station 20. Then, in the slave station 20, when the power feeding unit 22 is activated at the timing when the wireless power is fed from the master station 10, the data communication unit 21 is turned on and the data communication unit 21 is turned on if the wake-up timing is within a preset time range. Start communication. Therefore, it is possible to reduce the synchronization shift of the intermittent period between the slave stations. Therefore, since the number of synchronization re-drawings is reduced due to a decrease in the synchronization deviation of the intermittent period, the power consumption of the slave station can be suppressed.
- the master station 10 manages the wake-up timing of the slave station 20 and performs wireless power feeding according to the wake-up timing of the slave station 20. Thereby, it is possible to reduce the synchronization shift of the intermittent period and suppress power consumption.
- the master station 10 designates the slave station 20 to wake up simultaneously with the wireless power feeding by changing the signal pattern of the feed signal for each identification number of the slave station 20. That is, by reflecting the identification information of the slave station 20 in the feed signal that is not a data signal, the slave station 20 is made to recognize that it is a feed signal addressed to itself.
- the clock 22b-1 required in the first embodiment is not necessary. Since the slave station 20 does not need to drive the timepiece during standby in the power supply process S002, the driving power of the timepiece becomes unnecessary. Therefore, the power consumption of the slave station 20 can be further suppressed.
- the wake-up timing information includes the identification number of the slave station 20. Further, the slave station 20 does not need the clock during standby of the power supply process S002, which is necessary in the first embodiment.
- Embodiment 2 will be described with reference to FIGS.
- the system configuration of the second embodiment is the same as that of FIG. 1 of the first embodiment. Therefore, in the second embodiment, the master station 10, the slave station 20-1,..., The slave station 20-N in FIG. 1 are the master station 10A, the slave station 20A-1,.
- parts different from the first embodiment will be described.
- FIG. 9 is a functional block diagram of the master station 10A of the second embodiment.
- the master station 10 ⁇ / b> A includes a data communication unit 11 and a power supply unit 32.
- the data communication unit 11 is the same as that in the first embodiment.
- the power supply unit 32 includes a power supply signal generation unit 32a, a wake-up timing management unit 32b, and a wake-up pattern recording unit 32c.
- the wake-up timing management unit 32b includes a clock 32b-1.
- the power supply signal generation unit 32a generates a power supply signal having a signal pattern corresponding to the identification number of the slave station 20 to wake up, and transmits the power supply signal having the generated pattern.
- the signal pattern corresponding to the identification number is referred to as a power feeding pattern.
- the power feeding pattern is a power feeding signal transmission pattern.
- the wake-up pattern recording unit 32 c is the power supply side storage unit 101.
- the power supply signal generation unit 32 a and the wake-up timing management unit 32 b constitute a power supply side determination unit 102.
- the communication unit 11 a and the signal processing unit 11 b constitute a power supply side data communication unit 103.
- the hardware configuration of the master station 10A can be realized by the hardware configuration shown in FIG. 3 as with the master station 10 of the first embodiment. Specifically, it is as follows. (1) The data communication unit 11 is the same as that in the first embodiment. (2) The function of the power supply signal generation unit 32 a is realized by the CPU 85 and the RF circuit 84. (3) The function of the wake-up timing management unit 32b is realized by the CPU 85 and the oscillator 86. (4) The function of the wake-up pattern recording unit 32c is realized by the RAM 87.
- FIG. 10 is a functional block diagram of the slave station 20A of the second embodiment.
- the slave station 20 ⁇ / b> A includes a data communication unit 21 and a power feeding unit 42.
- the data communication unit 21 is the same as that in the first embodiment.
- the power feeding unit 42 includes an RF-DC conversion unit 22a, a power feeding pattern detection unit 42a, a wake-up management unit 42b, and an identification number storage unit 42c.
- the power feeding pattern detection unit 42a detects the power feeding pattern of the RF-DC converter 22a, and further recognizes the identification number of the slave station 20 from the power feeding pattern. Only the power feeding pattern may be detected, or the identification number may be recognized from the power feeding pattern.
- the power feeding pattern information is stored in the identification number storage unit 42c.
- the data communication unit 21 of the slave station is turned on when the power feeding patterns match.
- step S44 in FIG. "Does the power supply pattern match?"
- the wake-up management unit 42b determines whether the identification number or the power supply pattern recognized by the power supply pattern detection unit 42a is its own identification number or its own power supply pattern.
- the wake-up management unit 42b turns on the power of the data communication unit 21 when the identification number or its power feeding pattern is obtained.
- the identification number storage unit 42c stores the identification number of the local station that is the slave station 20 and the power feeding pattern information.
- the stored power feeding pattern information is information that can identify the power feeding pattern of the received power feeding signal. Specifically, in the case of the power supply pattern of ⁇ Example 1> described later, information on the power transmission period, and in the case of the power supply pattern of ⁇ Example 2> described later, information on the on / off pattern, ⁇ In the case of the power supply pattern of Example 3>, it is information on radio wave propagation characteristics.
- the identification number storage unit 42 c is the power receiving side storage unit 201.
- the RF-DC conversion unit 22a, the power feeding pattern detection unit 42a, and the wake-up management unit 42b constitute a power reception side determination unit 202.
- the data communication unit 21 is a power receiving side data communication unit 203.
- the hardware configuration of the slave station 20A can be realized by the hardware configuration shown in FIG.
- the slave station 20A does not require the clock 22b-1. Specifically, it is as follows. (1) The data communication unit 21 and the RF-DC conversion unit 22a are the same as those in the first embodiment. (2) The function of the power feeding pattern detection unit 42a is realized by the CPU 96. (3) The function of the wake-up management unit 42b is realized by the CPU 96. (4) The function of the identification number storage unit 42c is realized by the RAM 98.
- FIG. 11 is a sequence diagram showing exchange between the master station 10A and the plurality of slave stations 20A.
- FIG. 12 is a flowchart of the operation of the master station 10A.
- FIG. 13 is a flowchart showing an operation example of the slave station 20A. The communication operation between the master station 10A and the plurality of slave stations 20A will be described with reference to FIGS.
- FIG. 11 an outline of exchange between the master station 10A and the plurality of slave stations 20A will be described. The description will focus on the differences from FIG. 6 of the first embodiment. Also in FIG. 11, the exchange between the master station 10A and the plurality of slave stations 20A is divided into a housing process S001 of the slave station 20A and a power supply process S002.
- the master station 10A collects wake-up timing information from each of the N slave stations 20A through the accommodation process S001.
- the difference from the first embodiment is that in the second embodiment, it is essential that the wake-up timing information includes the identification number of the slave station 20A.
- the power supply signal transmitted in step S01 in FIG. 11 is a common power supply signal.
- the power supply signal transmitted in step S05 of FIG. 11 is not a common power supply signal but a power supply signal of a power supply pattern corresponding to each slave station 20A.
- this signal is referred to as a pattern feeding signal.
- the master station 10A supplies power to the slave station 20A through the accommodating process S001 in FIG.
- the pattern power supply signal is transmitted in step S05 of FIG.
- step S07-1, step S07-2, step S07-3, etc. each slave station 20A determines whether the received pattern power feed signal is addressed to its own station.
- the data communication unit 21 is turned on and starts data communication with the master station 10A. After the data communication is completed, the data communication unit 21 is turned off.
- step S30 in the master station 10, the data communication unit 11 and the power supply unit 32 are powered on, and the data communication unit 11 and the power supply unit 32 are activated.
- step S31 the power supply signal generation unit 32a transmits a common power supply signal.
- Step S31 corresponds to step S01 in FIG. 11, and the content is the same as step S11 in the first embodiment.
- Each slave station 20A is activated when a common power supply signal is received. Each activated slave station 20A transmits wake-up timing information including its own identification number to the master station 10A. This corresponds to steps S02 to S04 in FIG.
- step S32 in the master station 10A, the communication unit 11a receives the wake-up timing information including the identification number transmitted from each slave station 20A.
- the wake-up timing information includes an identification number in addition to the wake-up time and the wake-up interval.
- step S32 as in step S12, the master station 10A returns response data.
- the signal processing unit 11b After receiving the wake-up timing information including the identification number, the signal processing unit 11b reads the identification number, the wake-up time, and the wake-up interval, and notifies the wake-up timing management unit 32b. In step S33, the wake-up timing management unit 32b stores the wake-up time and the wake-up interval in the wake-up pattern recording unit 32c in association with the identification number of the slave station 20.
- step S34 the signal processing unit 11b increments the accommodation number M of the slave stations 20 by one.
- Step S34 is the same process as step S14.
- steps S32 to S34 are repeated until the incremented accommodated number M matches the accommodated number S of the slave stations 20 set in the master station 10 in advance.
- Step S36 When the accommodation number M matches the accommodation number S in step S35, the master station 10A enters a reception standby state (step S36). Steps S35 and S36 are the same as steps S15 and S16.
- step S37 the wake-up timing management unit 32b uses the clock 32b-1, and any one of the wake-up timings specified from the wake-up timing information recorded in the wake-up pattern recording unit 32c is the current time of the clock. Step S37 for determining whether or not the same is the same as step S17.
- the timepiece is realized by the CPU 85 and the oscillator 86 as in the first embodiment.
- the wake-up timing management unit 32b determines that the current time of the clock matches any of the plurality of wake-up timings (YES in step S37), the wake-up timing information stored in the wake-up pattern recording unit 32c The identification number of the wake-up timing that matches the time of the clock is extracted.
- the wake-up timing management unit 32b transmits the detected identification number and a command signal instructing transmission of the power supply signal to the power supply signal generation unit 32a.
- the identification number, the wake-up time, and the wake-up interval are determination information for determining whether to start data communication.
- step S38 when receiving the identification number and the command signal from the wake-up timing management unit 32b, the power supply signal generation unit 32a specifies the power supply pattern from the identification number, and generates and transmits the power supply signal of the specified power supply pattern.
- the CPU 85 constituting the power supply signal generation unit 32a is programmed in advance so that the power supply pattern can be specified from the identification number, and the CPU 85 uses the RF circuit 84 to generate a power supply signal of the specified power supply pattern. Send. This corresponds to step S05 in FIG. 11b.
- step S39 the master station 10A performs data communication with the slave station 20A that has started data communication in response to reception of the pattern power supply signal.
- the slave station 20A that performs data communication is the slave station 20A-1.
- the processing returns to the reception standby state in step S36 by the signal processing unit 11b.
- step S40 when each slave station 20A receives a common power supply signal (corresponding to step S01 in FIG. 11) from the master station 10A, the data communication unit 21 and the power supply unit 22 are turned on.
- step S41 when each slave station 20A receives the common power supply signal, the data communication unit 21 transmits the identification number of the local station in the wake-up timing information.
- step S41 is as follows.
- the power feeding pattern detection unit 42a detects reception of a common power feeding signal via the RF-DC conversion unit 22a.
- the power feeding pattern detection unit 42a detects reception of the common power feeding signal
- the power feeding pattern detection unit 42a transmits a detection signal to the wake-up management unit 42b.
- the wakeup management unit 42b reads the identification number, the wakeup time, and the wakeup interval from the identification number storage unit 42c, and transmits the wakeup timing information including these to the signal processing unit 21b.
- the signal processing unit 21b transmits the wake-up timing information including the identification number using the communication unit 21a.
- Step S41 corresponds to steps S02 to S04 in FIG.
- step S42 when response data is returned from the master station 10A, the signal processing unit 21b turns off the data communication unit 21 in the slave station 20A, and only the power supply unit 42 is turned on. This is the same process as step S22.
- the power supply pattern detection unit 42a detects reception of the pattern power supply signal via the RF-DC converter 22a ( YES in step S43).
- the power supply pattern detection unit 42a specifies the identification number from the power supply pattern of the pattern power supply signal.
- the CPU 96 constituting the power feeding pattern detection unit 42a is programmed in advance so that an identification number can be specified from the power feeding pattern.
- the power feeding pattern detection unit 42a transmits the identified identification number to the wake-up management unit 42b.
- step S45 the wake-up management unit 42b compares the identification number received from the power feeding pattern detection unit 42a with the identification number stored in the identification number storage unit 42c, and determines whether they match.
- the identification number stored in the identification number storage unit 42c is collation information to be collated with the identification number received from the power feeding pattern detection unit 42a.
- the identification number received from the power feeding pattern detection unit 42a is pattern information indicating the transmission pattern of the power feeding signal. Steps S44 and S45 correspond to steps S07-1 to S07-N in FIG.
- the wake-up management unit 42b determines that they match (YES in step S45)
- the wake-up management unit 42b turns on the data communication unit 21 in step S46.
- step S47 in the data communication unit 21 that is turned on, the signal processing unit 21b performs data communication with the master station 10A using the communication unit 21a.
- step S48 when data communication by the data communication unit 21 is completed, the wake-up management unit 42b turns off the data communication unit 21.
- the wake-up management unit 42b sets the power supply unit 42 in the standby state in step S42. Thereafter, steps S42 to S48 are repeated.
- step S38 of FIG. 12 the pattern power supply signal generated by the power supply signal generation unit 32a of the master station 10A has been described. Examples of how to create a power supply pattern of the power supply signal generation unit 32a include the following Example 1 to Example 3.
- the master station 10 maintains a different power transmission period for each slave station 20 to wake up.
- the master station 10 performs power transmission using the power transmission period of the slave station 20 to be woken up.
- the slave station 20 wakes up only when power is transmitted for the length of its power transmission period. That is, the wake-up management unit 42b turns on the data communication unit 21 only when the received power supply signal indicates the power supply pattern of the local station.
- the slave station 20A-1 has an identification number 1, and the identification number 1 is associated with a power transmission period of a feeding signal of 1 second as a feeding pattern.
- the slave station 20A-2 has an identification number 2, and the identification number 2 is associated with a power transmission period of a feeding signal of 2 seconds as a feeding pattern.
- the identification number is 1
- the power supply signal generation unit 32a transmits the common power supply signal as a pattern power supply signal for 1 second
- the power supply signal generation unit 32a transmits the common power supply signal as a pattern power supply signal for 2 seconds.
- the master station 10 transmits the pattern power supply signal in an on / off pattern.
- the master station 10 holds different power transmission patterns of ON and OFF for each slave station 20 to wake up.
- the master station 10A performs power transmission using a pattern power supply signal that is an on / off pattern of the slave station 20 to be woken up.
- the slave station 20A identifies the power supply on / off power supply pattern, and wakes up only when the power supply pattern is the local station. That is, the wake-up management unit 42b turns on the data communication unit 21 only when the received power supply signal indicates the power supply pattern of the local station.
- the slave station 20 holds, in advance, the identification information of the local station, such as the difference in power supply depending on the radio wave propagation environment depending on the installation position of the local station, that is, characteristics such as reflection, diffraction, and attenuation.
- the power supply signal transmitted by the master station 10A may be a common power supply signal.
- the slave station 20A wakes up only when the power supply signal matches the identification information of the own station. That is, the wake-up management unit 42b turns on the data communication unit 21 only when the received power supply signal indicates the power supply pattern of the local station.
- the hardware configuration is shown in FIG. 3 and FIG. 5, but in addition to the hardware configuration in FIG. 3 and FIG. May be provided.
- “ ⁇ part” may be read as “circuit” or “process” or “procedure” or “processing”.
- the functions of the master stations 10, 10A and the slave stations 20, 20A are executed by the computer executing the program of the functions of the master stations 10, 10A and the slave stations 20, 20A. Realized. That is, the power supply device, the power reception device, and the power supply system described in the above embodiments can be grasped as a power supply method, a power management method, a power supply program, and a power management program.
- Circuit and “Circuitry” include not only a CPU but also other types of processing circuits such as a logic IC, GA (Gate Array), ASIC (Application Specific Integrated Circuit), or FPGA (Field-Programmable Gate Array). It is a concept to include.
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Abstract
Description
しかし、これらを電源として使用する方法では、無線通信装置は、限られた電力量で長期間の連続運用が必要になる。よって無線通信装置には、運用中の電力消費量を極力小さくすることが要求される。
電力を供給する給電信号を受電装置に送信する給電装置において、
前記受電装置とデータ通信を開始すべき開始時刻を特定する時刻情報が格納された給電側格納部と、
前記時刻情報により特定された前記開始時刻に到達したかを判定し、前記開始時刻に到達したと判定した場合に前記給電信号を送信する給電側判定部と
を備えている。
図1~図8を参照して実施の形態1を説明する。図1は、実施の形態1の給電システム1を示す図である。給電システム1は、親局10と、複数の子局20とを備える。親局は給電装置であり、それぞれの子局は受電装置である。図1では、子局20-1~子局20-NのN機の子局を示している。親局10とそれぞれの子局20とは、無線でデータ通信を行う。また、親局10は、電力を供給する給電信号を子局20に無線で送信する。
図2は親局10の機能ブロック図である。親局10は、それぞれの子局20とデータ通信を行うデータ通信部11、給電信号を送信する給電部12を備えている。データ通信部11は、子局20にデータ信号を送信し、また子局からデータ信号を受信する通信部11a、データ信号を信号処理して外部機器へデータ転送する信号処理部11b、記憶部11c及びデータ通信用のアンテナ11dを備えている。通信部11aと信号処理部11bとは、給電側データ通信部103を構成する。給電側データ通信部103は、受電装置とデータ通信を行う。給電部12は、給電信号を生成する給電信号生成部12a、通信部11aにデータ通信命令を送信し、また給電信号生成部12aに給電を開始させる起床タイミング管理部12b、子局20-1~子局20-Nのすべての子局の起床時刻が格納される起床時刻記録部12c及び給電用のアンテナ12dを備えている。起床時刻記録部12cは、給電側格納部101である。給電信号生成部12aと起床タイミング管理部12bは、給電側判定部102を構成する。
なお、機能ブロック図との対応は以下のとおりである。
(1)通信部11aの機能は、RF回路81で実現される。
(2)信号処理部11bの機能はCPU82で実現される。
(3)記憶部11cの機能はRAM83によって実現される。
(4)給電信号生成部12aの機能は、RF回路84とCPU85とによって実現される。
(5)起床タイミング管理部12bの機能は、CPU85及び発振器86によって実現される。
(6)起床時刻記録部12cの機能は、RAM87によって実現される。
(1)通信部21aの機能は、RF回路91で実現される。
(2)信号処理部21bの機能は、CPU92で実現される。
(3)RF-DC変換部22aの機能は、整流回路93、DC/DC94及び蓄電コンデンサ95で実現される。
(4)起床時刻管理部22bの機能は、CPU96及び発振器97によって実現される。
(5)起床時刻記憶部22cの機能は、RAM98によって実現される。
図6は、親局10と複数の子局20とのやり取りを示すシーケンス図である。図7は、親局10の動作のフローチャートである。図8は、子局20の動作例を示すフローチャートである。図6~図8を参照して、親局10と複数の子局20との通信の動作を説明する。
図6に示すように、親局10と複数の子局20とのやり取りは、上側の子局20の収容処理S001と、下側の給電処理S002とに分けられる。
なお、子局は給電信号の受信回数Nを起床時刻記憶部22cに記憶せずに、給電信号の受信を待つことなく自身の起床時刻となったときに自律的に収容処理S001を行い、収容処理S001の後の処理は給電処理S002であると判定してもよい。つまり、子局は給電信号の受信を待つことなく自身の起床時刻となったときに自律的に起床タイミング情報を親局に送信する。そして、子局は、起床タイミング情報の送信後は給電処理S002であると判定する。
ステップS10において、親局10はデータ通信部11、給電部12が電源オンされ、データ通信部11、給電部12が起動する。
以上に示したように、実施の形態1によれば、親局10は、子局20の起床タイミングを管理し、子局20の起床タイミングに従って無線給電を行う。そして、子局20は親局10から無線給電されたタイミングで給電部22が起動し、起床タイミングが予め設定された時刻の許容範囲以内であれば、データ通信部21が電源オンになり、データ通信を開始する。よって、子局間における間欠周期の同期ずれを減少させることが可能となる。よって間欠周期の同期ずれの減少によって、同期の再引き込みの回数が減少するため、子局の消費電力を抑えることができる。
実施の形態1では、親局10が子局20の起床タイミングを管理し、子局20の起床タイミングに従って無線給電を行う構成である。これにより、間欠周期の同期ずれを減少させ、消費電力を抑えることが可能である。実施の形態2では、親局10が子局20の識別番号毎に給電信号の信号パターンを変えることで、起床させる子局20を無線給電と同時に指定する。つまり、データ信号ではない給電信号に子局20の識別情報を反映することで、子局20に自局宛の給電信号であることを認識させる。これにより、実施の形態1で必要であった時計22b-1を不要とする。子局20では給電処理S002の待機中における時計の駆動が不要となるので、時計の駆動電力が不要になる。よって更に子局20の消費電力を抑えることができる。
(2)起床タイミング管理部32bは、いずれかの子局20の起床タイミングになった場合、給電信号生成部32aに、対象となる子局20の給電パターンの給電信号の送信を開始させる。
(3)起床パターン記録部32cは、親局10が収容するすべての子局20の起床タイミング情報を記録する。
(1)データ通信部11は実施の形態1と同じである。
(2)給電信号生成部32aの機能は、CPU85、RF回路84によって実現される。
(3)起床タイミング管理部32bの機能は、CPU85及び発振器86によって実現される。
(4)起床パターン記録部32cの機能は、RAM87によって実現される。
給電部42は、RF-DC変換部22a、給電パターン検出部42a、起床管理部42b、識別番号記憶部42cを備える。
(1)給電パターン検出部42aは、RF-DC変換部22aの給電パターンを検出し、さらに、給電パターンから子局20の識別番号を認識する。
なお、給電パターンのみの検出でもよいし、給電パターンから識別番号を認識してもよい。後述のように給電パターンの情報は識別番号記憶部42cに格納されている。給電パターンのみの検出の場合、給電パターンが一致した場合に、子局のデータ通信部21が電源オンになる。後述の図13の子局の動作では、給電パターンから識別番号を認識する場合について説明しているが、給電パターンのみの検出の場合には、図13において、ステップS44が不要となり、ステップS45が「給電パターンが一致するか?」となる。
(2)起床管理部42bは、給電パターン検出部42aが認識した識別番号あるいは給電パターンが、自身の識別番号あるいは自身の給電パターンかを判断する。起床管理部42bは、判断の結果、自身の識別番号あるいは自身の給電パターンであった場合には、データ通信部21の電源をオンにする。(3)識別番号記憶部42cには、子局20である自局の識別番号及び給電パターンの情報が格納されている。格納されている給電パターンの情報は、受信した給電信号の給電パターンを特定可能な情報である。具体的には、後述の<例1>の給電パターンの場合であれば電力伝送期間の情報であり、後述の<例2>の給電パターンの場合であればオンオフのパターンの情報であり、<例3>の給電パターンの場合であれば電波の伝搬特性の情報である。
(1)データ通信部21及びRF-DC変換部22aは、実施の形態1と同じである。
(2)給電パターン検出部42aの機能は、CPU96によって実現される。
(3)起床管理部42bの機能は、CPU96によって実現される。
(4)識別番号記憶部42cの機能は、RAM98によって実現される。
給電パターンとして、親局10は起床させる子局20毎に、異なる電力伝送期間を保持する。親局10は起床させたい子局20の電力伝送期間を用いて、電力伝送を行う。子局20は自身の電力伝送期間の長さ電力伝送された場合のみ起床する。つまり受信した給電信号が自局の給電パターンを示す場合にのみ、起床管理部42bはデータ通信部21の電源をオンにする。具体例を挙げれば、子局20A-1は識別番号1であり、識別番号1は、給電パターンとして1秒間の給電信号の電力伝送期間が対応づけられている。子局20A-2は識別番号2であり、識別番号2は、給電パターンとして2秒間の給電信号の電力伝送期間が対応づけられている。給電信号生成部32aは、識別番号1の場合は、パターン給電信号として、共通給電信号を1秒間送信し、識別番号2の場合は、パターン給電信号として、共通給電信号を2秒間送信する。
給電パターンとして、親局10はパターン給電信号をオンとオフのパターンで電力伝送する。親局10は起床させる子局20毎に、オンとオフとからなる異なる電力伝送パターンを保持する。親局10Aは起床させたい子局20のオンとオフとのパターンであるパターン給電信号を用いて電力伝送を行う。子局20Aは電力伝送のオンとオフの給電パターンを識別し、自局の給電パターンであった場合にのみ起床する。つまり受信した給電信号が自局の給電パターンを示す場合にのみ、起床管理部42bはデータ通信部21の電源をオンにする。
子局20は、自局の設置位置による電波の伝搬環境による給電のされ方の違い、つまり、反射、回折、減衰等の特性を予め、自局の識別情報として保持しておく。この場合、親局10Aが送信する給電信号は共通給電信号でも構わない。親局10から給電信号を受信した場合、子局20Aは給電信号が自局の識別情報と一致した場合のみ起床する。つまり受信した給電信号が自局の給電パターンを示す場合にのみ、起床管理部42bはデータ通信部21の電源をオンにする
以上に示したように、実施の形態2の親局10A、子局20Aによれば、パターン給電信号を使用することにより子局20Aの無線給電の待機中における時計の駆動が不要となるので、実施の形態1よりも、さらに消費電力の削減効果がある。
Claims (10)
- 電力を供給する給電信号を受電装置に送信する給電装置において、
前記受電装置とデータ通信を開始すべき開始時刻を特定する時刻情報が格納された給電側格納部と、
前記時刻情報により特定された前記開始時刻に到達したかを判定し、前記開始時刻に到達したと判定した場合に前記給電信号を送信する給電側判定部と
を備えた給電装置。 - 前記給電側格納部は、
前記受電装置を識別する識別情報に、前記時刻情報が対応づけて格納されており、
前記給電側判定部は、
前記給電信号を送信する場合に、前記識別情報に対応する前記給電信号の送信パターンを決定し、決定した前記送信パターンで前記給電信号を送信する請求項1に記載の給電装置。 - 電力を供給する給電信号を送信する給電装置から前記給電信号を受信する受電装置において、
前記給電装置とデータ通信を開始すべきかどうかの判定に使用する判定情報が格納された受電側格納部と、
前記給電装置とデータ通信を行う受電側データ通信部と、
前記給電信号を受信した場合に前記判定情報を使用して前記データ通信を開始すべきかどうかを判定し、前記データ通信を開始すべきと判定した場合に前記受電側データ通信部の電源をオンにして前記受電側データ通信部に前記給電装置とのデータ通信を行わせ、前記受電側データ通信部による前記給電装置とのデータ通信が終了した場合に前記受電側データ通信部の電源をオフにする受電側判定部と
を備えた受電装置。 - 前記受電側格納部は、
前記判定情報として、前記給電装置とデータ通信を開始すべき開始時刻を特定する時刻情報が格納されており、
前記受電側判定部は、
前記給電信号を受信した場合に前記時刻情報を使用して前記データ通信を開始すべきかどうかを判定する請求項3に記載の受電装置。 - 前記受電側格納部は、
前記判定情報として、前記給電信号の送信パターンを示すパターン情報と照合される照合情報が格納されており、
前記受電側判定部は、
前記給電信号の前記パターン情報を検出し、検出した前記パターン情報と前記照合情報とを比較し、比較の結果、前記パターン情報が前記照合情報を示す場合に前記データ通信を開始すべきと判定する請求項3に記載の受電装置。 - 電力を供給する給電信号を送信する給電装置と、
前記給電装置から前記給電信号を受信し、前記給電装置とデータ通信を行う受電装置と
を備え、
前記給電装置は、
前記受電装置が前記データ通信を開始すべき開始時刻を特定する時刻情報が格納された給電側格納部と、
前記時刻情報により特定された開始時刻に到達したかを判定し、前記開始時刻に到達した判定した場合に前記給電信号を送信する給電側判定部と、
前記受電装置とデータ通信を行う給電側データ通信部と
を備え、
前記受電装置は、
前記データ通信を開始すべきかどうかの判定に使用する判定情報が格納された受電側格納部と、
前記給電側データ通信部とデータ通信を行う受電側データ通信部と、
前記給電信号を受信した場合に前記判定情報を使用して前記データ通信を開始すべきかどうかを判定し、前記データ通信を開始すべきと判定した場合に前記受電側データ通信部の電源をオンにして前記受電側データ通信部に前記給電装置とのデータ通信を行わせ、前記受電側データ通信部による前記給電装置とのデータ通信が終了した場合に前記受電側データ通信部の電源をオフにする受電側判定部と
を備えた給電システム。 - 電力を供給する給電信号を受電装置に送信する給電装置が行う給電方法であって、
前記受電装置とデータ通信を開始すべき開始時刻を特定する時刻情報を格納し、
前記時刻情報により特定された前記開始時刻に到達したかを判定し、前記開始時刻に到達したと判定した場合に前記給電信号を送信する給電方法。 - 電力を供給する給電信号を送信する給電装置とデータ通信を行う受電側データ通信部を備える受電装置が行うデータ通信方法であって、
前記給電装置とデータ通信を開始すべきかどうかの判定に使用する判定情報を格納し、
前記給電信号を受信した場合に前記判定情報を使用して前記データ通信を開始すべきかどうかを判定し、
前記データ通信を開始すべきと判定した場合に前記受電側データ通信部の電源をオンにして前記受電側データ通信部に前記給電装置とのデータ通信を行なわせ、前記受電側データ通信部による前記給電装置とのデータ通信が終了した場合に前記受電側データ通信部の電源をオフにする電源管理方法。 - 電力を供給する給電信号を受電装置に送信する給電装置であるコンピュータに、
前記受電装置とデータ通信を開始すべき開始時刻を特定する時刻情報を格納する処理、
前記時刻情報により特定された前記開始時刻に到達したかを判定する処理、
前記開始時刻に到達したと判定した場合に前記給電信号を送信する処理
を実行させるための給電プログラム。 - 電力を供給する給電信号を送信する給電装置とデータ通信を行う受電側データ通信部を備える受電装置であるコンピュータに、
前記給電装置とデータ通信を開始すべきかどうかの判定に使用する判定情報を格納する処理、
前記給電信号を受信した場合に前記判定情報を使用して前記データ通信を開始すべきかどうかを判定する処理、
前記データ通信を開始すべきと判定した場合に前記受電側データ通信部の電源をオンにして前記受電側データ通信部に前記給電装置とのデータ通信を行わせ、前記受電側データ通信部による前記給電装置とのデータ通信が終了した場合に前記受電側データ通信部の電源をオフにする処理
を実行させるための電源管理プログラム。
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JP2016553679A JP6095866B1 (ja) | 2015-12-25 | 2015-12-25 | 給電装置、受電装置、給電システム、給電方法、電源管理方法、給電プログラム及び電源管理プログラム |
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PCT/JP2015/086303 WO2017109963A1 (ja) | 2015-12-25 | 2015-12-25 | 給電装置、受電装置、給電システム、給電方法、電源管理方法、給電プログラム及び電源管理プログラム |
TW105109990A TW201724702A (zh) | 2015-12-25 | 2016-03-30 | 供電裝置、受電裝置、供電系統、供電方法、電源管理方法、供電程式產品以及電源管理程式產品 |
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