System, measuring instrument, method, and program

Abstract

To provide a technique for making it possible to grasp the strength of radio waves in an indoor space.SOLUTION: A system comprises one or more transmitters, one or more receivers, a plurality of measuring instruments, and an information processing device. The transmitters are installed in a space to be measured and transmit power supply signals. The receivers generate power by the power supply signals. The measuring instruments measure the electric field intensity at positions where they are arranged. The information processing device prestores space information of the space to be measured, and generates an electric field intensity distribution in the space to be measured on the basis of the space information and the electric field intensity measured by the plurality of measuring instruments.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a system, a measuring device, a method, and a program. [Background technology]

[0002] In recent years, wireless power transfer (WPT) has been used in various fields. By utilizing WPT, problems such as wiring strain, breakage, and maintenance can be avoided compared to wired power transfer.

[0003] Patent document 1 describes an electric field strength sensor that is installed in an indoor space and detects the level of electromagnetic waves from a wireless power supply device received at the installation location, and also describes that multiple electric field strength sensors may be installed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2010-246319 A Summary of the Invention [Problem to be solved by the invention]

[0005] In Patent Document 1, a system abnormality is diagnosed based on a detection value of the level of electromagnetic waves emitted from a wireless power supply device and a set value of the level of the electromagnetic waves. However, Patent Document 1 does not diagnose the strength of radio waves in an indoor space.

[0006] An object of the present disclosure is to provide a technology that makes it possible to grasp the strength of radio waves in an indoor space. [Means for solving the problem]

[0007] The system includes one or more transmitters, one or more receivers, multiple measuring devices, and an information processing device. The transmitter is installed in a space to be measured and transmits a power supply signal. The receiver generates power from the power supply signal. The measuring device measures the electric field strength at the position where it is placed. The information processing device pre-stores spatial information of the space to be measured, and generates an electric field strength distribution in the space to be measured based on the spatial information and the electric field strength measured by the multiple measuring devices. Effect of the Invention

[0008] According to the present disclosure, it is possible to grasp the level of electromagnetic waves in an indoor space. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing the overall configuration of a WPT system 1 according to an embodiment of the present invention. [Diagram 2] 2 is a block diagram showing an example of the configuration of a transmitter 100 and a receiver 200 shown in FIG. [Diagram 3] 2 is a block diagram illustrating an example of the configuration of a measuring device 500 shown in FIG. [Figure 4] FIG. 2 is a diagram illustrating an example of a functional configuration of a first information processing device 300. [Diagram 5] 4 is a diagram illustrating an example of a structure of a measuring device 500 shown in FIG. 3. [Figure 6] 6 is an example of a perspective view showing the structure of a PCB 530 shown in FIG. 5. [Figure 7] FIG. 6 is a perspective view of the measuring device 500 shown in FIG. 5 placed on a flat surface. [Figure 8] 3 is a schematic diagram showing an example of a data structure of a spatial information table 3021 stored in a first information processing device 300. FIG. [Figure 9] 13 is a schematic diagram showing an example of the data structure of a measurement result table 3022 stored in the first information processing device 300. FIG. [Figure 10] 5 is a flowchart illustrating an example of the operation of the measuring device 500. [Figure 11] 1 is a diagram illustrating an example of the spatial arrangement of a transmitter 100 and a measuring device 500. FIG. [Figure 12] 13 is a schematic diagram showing an example of a distribution map generated by the generation module 3034. FIG. [Figure 13] 1 is a diagram illustrating an example of the spatial arrangement of a transmitter 100 and a measuring device 500. FIG. [Figure 14] FIG. 14 is a schematic diagram illustrating an example of a distribution map when transmitters 100 are arranged as shown in FIG. [Figure 15] FIG. 2 is a block diagram showing the basic hardware configuration of a computer 90. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In all the drawings explaining the embodiment, the same reference numerals are given to common components, and repeated explanations are omitted. Note that the following embodiment does not unduly limit the contents of the present disclosure described in the claims. In addition, not all of the components shown in the embodiment are essential components of the present disclosure. In addition, each figure is a schematic diagram and is not necessarily illustrated strictly.

[0011] <Summary> In a WPT (Wireless Power Transfer) system, there are one or more transmitters that transmit a power supply signal and multiple receivers that receive the power supply signal. One or more measuring devices measure the electric field strength based on the power supply signal transmitted by the transmitter. An information processing device calculates the electric field strength distribution in a measurement target space (indoor space) based on the electric field strength measured by the measuring device.

[0012] <1 Overall system configuration> FIG. 1 is a diagram showing the overall configuration of a WPT system 1 according to this embodiment.

[0013] The WPT system 1 shown in Fig. 1 includes, for example, a transmitter 100, a receiver 200, a first information processing device 300, a second information processing device 400, and a measuring device 500. The WPT system 1 shown in Fig. 1 is used, for example, in a building or a factory. A building is an example of a structure, and is not limited to a building as long as it is an indoor space where a predetermined activity such as business or office work is carried out. The connection between the transmitter 100 and the first information processing device 300, and the connection between the first information processing device 300 and the second information processing device 400 may be wired or wireless.

[0014] 1 shows an example in which the WPT system 1 includes three transmitters 100, but the number of transmitters 100 included in the WPT system 1 is not limited to three. The number of transmitters 100 included in the WPT system 1 may be two or less, or may be four or more.

[0015] 1 shows an example in which the WPT system 1 includes seven receivers 200, but the number of receivers 200 included in the WPT system 1 is not limited to seven. The number of receivers 200 included in the WPT system 1 may be six or less, or eight or more.

[0016] In this specification, the transmitter 100 is a (power) transmitter 100 in the sense of wirelessly transmitting power, and similarly, the receiver 200 is a (power) receiver 200 in the sense of wirelessly receiving power. As described later, the receiver 200 may transmit, for example, information on the state of the receiver 200 or information on a measurement result by a sensor to the transmitter 100 as a data signal, and the transmitter 100 may receive such a data signal. In this case, the transmitter 100 is a receiver that receives a data signal, and the receiver 200 functions as a transmitter that transmits a data signal.

[0017] FIG. 1 shows an example in which the WPT system 1 includes two measuring devices 500, but the number of measuring devices 500 included in the WPT system 1 is not limited to two. The WPT system 1 may include three or more measuring devices 500. The measuring devices 500 may be installed, for example, at positions corresponding to the positions of the transmitters 100. For example, the measuring devices 500 are installed at approximately equal distances from each transmitter 100. The measuring devices 500 may also be installed, for example, at positions corresponding to the positions of the receivers 200. For example, the measuring devices 500 are installed near the receivers 200.

[0018] 1 shows an example in which the WPT system 1 includes two first information processing devices 300, but the number of first information processing devices 300 included in the WPT system 1 is not limited to two. The number of first information processing devices 300 included in the WPT system 1 may be one, or three or more.

[0019] The transmitter 100 transmits, for example, a power supply signal or a data signal to the receiver 200. The transmitter 100 transmits the power supply signal to the receiver 200 by radio waves in the 920 MHz band, for example. The transmitter 100 transmits the data signal to the receiver 200 by radio waves in the 2.4 GHz band, for example. The transmitter 100 may transmit the data signal by radio waves in the 920 MHz band.

[0020] The transmitter 100 may, for example, feed power to one receiver 200 or to multiple receivers 200. The transmitter 100 may, for example, transmit a data signal to one receiver 200 or to multiple receivers 200. The transmitter 100 may, for example, transmit the same data signal as another transmitter 100, or may transmit a data signal different from that of the other transmitters 100. The transmitter 100 may, for example, transmit a predetermined command signal as a data signal to the receiver 200, or may transmit a preset signal as a data signal to the receiver 200.

[0021] The transmitter 100 receives, for example, a data signal transmitted from the receiver 200. The transmitter 100 may receive, for example, a data signal transmitted from one receiver 200, or may receive data signals transmitted from a plurality of receivers 200. The transmitter 100 transmits the data signal transmitted from the receiver 200 to the first information processing device 300. The transmitter 100 transmits information related to the state of the transmitter 100 to the first information processing device 300.

[0022] The receiver 200 receives, for example, a power supply signal or a data signal transmitted from the transmitter 100. For example, if the receiver 200 has a power storage unit, the receiver 200 converts the power supply signal transmitted from the transmitter 100 into electric power and stores the converted electric power in the power storage unit. For example, if the receiver 200 has a predetermined sensor, the receiver 200 converts the power supply signal transmitted from the transmitter 100 into electric power and drives the sensor with the converted electric power. The receiver 200 may drive the sensor with the electric power stored in the power storage unit.

[0023] The receiver 200 transmits, for example, information relating to the state of the receiver 200 or information relating to the measurement results of a sensor to the transmitter 100 as a data signal.

[0024] The measuring device 500 measures, for example, the strength of an electric field (electric field strength) generated by a power supply signal transmitted from the transmitter 100. The measuring device 500 measures, for example, the strength of an electric field generated by radio waves in the 920 MHz band transmitted from the transmitter 100 along three axes in a Cartesian coordinate system. The measuring device 500 performs, for example, a predetermined statistical process on the measured electric field strength. The measuring device 500 transmits the processed information to the first information processing device 300 by radio waves in the 2.4 GHz band, for example.

[0025] The measuring device 500 may calculate the power that may be generated by the received power supply signal. For example, the measuring device 500 calculates the intensity of the power that may be generated by radio waves in the 920 MHz band transmitted from the transmitter 100 along three axes in a Cartesian coordinate system. For example, the measuring device 500 performs a predetermined statistical process on the calculated power. The measuring device 500 transmits the processed information to the first information processing device 300 by radio waves in the 2.4 GHz band, for example.

[0026] The first information processing device 300 is an information processing device that monitors the operation of the transmitter 100 and the receiver 200 housed in the WPT system 1. For example, the first information processing device 300 determines whether the transmitter 100 or the receiver 200 is in a preset state based on information about the state of the transmitter 100 and the receiver 200 transmitted from the transmitter 100. If it is determined that the transmitter 100 or the receiver 200 is in a preset state, the first information processing device 300 transmits predetermined information to the second information processing device 400.

[0027] In addition, the first information processing device 300 accumulates information about the transmitter 100 and the receiver 200 accommodated in the WPT system 1. For example, the first information processing device 300 stores information about the states of the transmitter 100 and the receiver 200 transmitted from the transmitter 100 in a storage unit provided in the first information processing device 300.

[0028] Moreover, the first information processing device 300 controls the operation of the transmitter 100 accommodated in the WPT system 1. For example, the first information processing device 300 transmits a predetermined instruction or information to the transmitter 100.

[0029] In addition, the first information processing device 300 controls the operation of the second information processing device 400 .

[0030] Moreover, the first information processing device 300 monitors the radio wave environment of the space in which the WPT system 1 is constructed. The first information processing device 300, for example, stores information transmitted from the measuring device 500 in a storage unit provided in the first information processing device 300. The first information processing device 300 calculates the distribution of the electric field strength in the space, for example, based on the stored information and information on the placement of the transmitter 100. The distribution of the electric field strength may be a three-dimensional distribution or a two-dimensional distribution. The first information processing device 300 calculates an appropriate placement of the transmitter 100, for example, based on the calculated electric field strength distribution.

[0031] The second information processing device 400 is, for example, an information processing device operated by an administrator of the WPT system 1. When the second information processing device 400 receives a notification from the first information processing device 300 that the transmitter 100, the receiver 200, or both of them housed in the WPT system 1 are in a predetermined state, the second information processing device 400 presents to the user that the transmitter 100, the receiver 200, or both of them are in the predetermined state.

[0032] Moreover, the second information processing device 400 analyzes information on the status of the transmitter 100 and the receiver 200 stored in the first information processing device 300, and presents predetermined information to the user. The predetermined information is, for example, the following. Information regarding placement of transmitter 100 Information regarding the placement of the receiver 200 Power consumption information Power intensity information

[0033] In addition, second information processing device 400 analyzes information measured by measuring device 500 and stored in first information processing device 300, and presents predetermined information to the user. The predetermined information is, for example, the following. Electric field strength distribution in space - Changes in the distribution of electric field strength in space over time Changes in the field strength distribution due to changes in the conditions in the space (e.g., changes in the placement or parameters of the transmitter 100) Changes in the distribution of electric field strength due to changes in the layout of the space (e.g., changes in the arrangement of desks, shelves, etc.) Optimal placement of the transmitter 100 (for example, when not calculated by the first information processing device 300)

[0034] <1.1 Transmitter and receiver configuration> FIG. 2 is a block diagram showing an example of the configuration of the transmitter 100 and the receiver 200 shown in FIG. 1. As shown in FIG. 2, the transmitter 100 and the receiver 200 are, for example, spaced apart from each other at a predetermined interval. For example, the transmitter 100 and the receiver 200 are installed at a distance of about several meters. Specifically, for example, the transmitter 100 is fixedly installed at a predetermined high position provided in a high place indoors, for example, on a ceiling or a wall. The position of the transmitter 100 can be changed after installation depending on how it is installed. The receiver 200 is installed in a predetermined device indoors, or placed near a device that requires power supply. The receiver 200 may also be carried by a user. The position of the receiver 200 can be changed after installation depending on how it is installed. The transmitter 100 transmits a power supply signal to the receiver 200 by radio waves of a predetermined frequency, for example, 920 MHz band. The receiver 200 converts the power supply signal transmitted from the transmitter 100 into electric power, and uses the converted electric power to charge or supply the converted electric power to a predetermined device.

[0035] The transmitter 100 includes, for example, an oscillator 101, a transmitting antenna 102, a microcomputer (controller) 103, a data transceiver 104, and a data transmitting / receiving antenna 105. The oscillator 101, the microcomputer 103, the data transceiver 104, and the data transmitting / receiving antenna 105, or at least any combination of these, may be mounted on, for example, a PCB (printed circuit board).

[0036] The oscillator 101 oscillates a signal in a predetermined frequency band, for example, the 920 MHz band. The oscillated signal may be amplified and unnecessary frequency components may be removed, if necessary.

[0037] The transmitting antenna 102 is formed so as to be capable of efficiently transmitting radio waves in the 920 MHz band, for example. The transmitting antenna 102 radiates a signal oscillated by an oscillator 101 as a power supply signal.

[0038] The microcomputer 103 controls the operation of the transmitter 100. The microcomputer 103 is realized by, for example, a semiconductor device equipped with an ARM processor. The microcomputer 103 controls, for example, the transmission of radio waves by the transmission antenna 102.

[0039] The data transceiver 104 performs processes such as converting digital data to analog data, modulating analog data, etc. The data transceiver 104 also performs processes such as demodulating a data signal received by the data transceiver antenna 105, and digitizing the demodulated data. For example, the data transceiver 104 extracts a predetermined signal from the data signal received by the data transceiver antenna 105, converts it into digital data, and transmits it to the microcomputer 103.

[0040] The data transmission / reception antenna 105 is formed to be capable of efficiently transmitting and receiving radio waves in the 2.4 GHz band, for example. The data transmission / reception antenna 105 radiates a data signal supplied from the data transceiver 104. In addition, the data transmission / reception antenna 105 receives a data signal transmitted from the receiver 200.

[0041] The receiver 200 includes, for example, a receiving antenna 201, a rectifier 202, a power management unit 203, a power storage unit 204, a microcomputer 205, a data transceiver 206, and a data transmitting / receiving antenna 207. The receiving antenna 201, the rectifier 202, the power management unit 203, the power storage unit 204, the microcomputer 205, the data transceiver 206, and the data transmitting / receiving antenna 207, or at least any combination of these, may be mounted on, for example, a PCB or an FPC (flexible printed circuit board).

[0042] The receiving antenna 201 is formed so as to be able to efficiently receive radio waves in the 920 MHz band, for example. The receiving antenna 201 receives the power supply signal radiated from the transmitting antenna 102.

[0043] The rectifier 202 rectifies the radio waves received as a power supply signal and converts them into a DC voltage.

[0044] The power management unit 203 manages the DC voltage. For example, the power management unit 203 controls a charging voltage based on the DC voltage. The power management unit 203 charges the power storage unit 204 by controlling the charging voltage. In addition, for example, when the power storage unit 204 stores power equal to or greater than a predetermined capacity, the power management unit 203 supplies the DC voltage to a connected member.

[0045] Further, the power management unit 203 releases the power stored in the power storage unit 204 in response to control from the microcomputer 205 .

[0046] The power storage unit 204 stores power in response to an instruction from the power management unit 203. The power storage unit 204 is realized by, for example, a battery or a capacitor. Furthermore, the power storage unit 204 releases the stored power in response to an instruction from the power management unit 203.

[0047] The microcomputer 205 controls the operation of the receiver 200. The microcomputer 205 is driven by a DC voltage supplied from the power management unit 203 or by power stored in the power storage unit 204. The microcomputer 205 controls the power management unit 203 to cause the power storage unit 204 to release the power stored therein.

[0048] For example, various sensors can be connected to the receiver 200. For example, a heat sensor, a temperature sensor, a light sensor, a humidity sensor, a vibration sensor, and the like are connected to the receiver 200. The sensors connected to the receiver 200 are driven by, for example, a direct current voltage supplied from the power management unit 203 or power discharged from the power storage unit 204. The microcomputer 205 continuously or intermittently monitors the voltage value at a predetermined portion of the receiver 200, the status of the sensor connected to the receiver 200, information detected by the sensor, and the like. The microcomputer 205 transmits the voltage value at a predetermined portion of the receiver 200, the status of the sensor connected to the receiver 200, information detected by the sensor, and the like as digital data to the data transceiver 206. The sensor may be built into the receiver 200.

[0049] The data transceiver 206 performs processes such as converting digital data supplied from the microcomputer 205 into analog data and modulating the analog data. The data transceiver 206 also performs processes such as demodulating a data signal received by a data transceiver antenna 207 and digitizing the demodulated data. The data transceiver 206 is driven by, for example, a DC voltage supplied from the power management unit 203 or power discharged from the power storage unit 204.

[0050] The data transmission / reception antenna 207 is formed to be capable of efficiently transmitting and receiving radio waves in the 2.4 GHz band, for example. The data transmission / reception antenna 207 radiates a data signal supplied from the data transceiver 206. In addition, the data transmission / reception antenna 207 receives a data signal transmitted from the transmitter 100. For example, the data transmission / reception antenna 207 is driven by a DC voltage supplied from the power management unit 203 or power discharged from the power storage unit 204.

[0051] <1.2 Measuring instrument configuration> FIG. 3 is a block diagram showing an example of the configuration of measuring device 500 shown in FIG. 1. Measuring device 500 shown in FIG. 3 is placed, for example, in a space to be measured. Measuring device 500 is placed, for example, in a space at regular intervals. Measuring device 500 may be placed, for example, only at positions where measurement is required. Measuring device 500 may be placed, for example, at a position corresponding to transmitter 100 or receiver 200. Measuring device 500 may be placed on an object such as a desk, chair, shelf, etc., or may be hung by a string. Measuring device 500 may be placed at multiple heights rather than at a fixed height.

[0052] The measuring device 500 includes, for example, a measuring antenna 501, a field intensity measuring unit 502, a power storage unit 503, a microcomputer 504, a data transceiver 505, and a data transmitting / receiving antenna 506. The measuring antenna 501, the field intensity measuring unit 502, the power storage unit 503, the microcomputer 504, the data transceiver 505, and the data transmitting / receiving antenna 506, or at least any combination of these, may be mounted on, for example, a PCB or an FPC (flexible printed circuit board).

[0053] The measurement antenna 501 is formed so as to be able to efficiently receive radio waves in the 920 MHz band, for example. The measurement antenna 501 is formed along three axes in a Cartesian coordinate system, for example. That is, the measurement antenna 501 has an antenna element formed along the x-axis, an antenna element formed along the y-axis, and an antenna element formed along the z-axis. Each antenna element is realized by, for example, a dipole antenna. Note that a monopole antenna may also be used. Each antenna element has a length (for example, about 40 mm) that is, for example, half the wavelength of radio waves in the 920 MHz band or less. The measurement antenna 501 receives a power supply signal radiated from the transmission antenna 102.

[0054] The field strength measuring unit 502 measures the field strength based on the strength of the signal received by the measurement antenna 501. Specifically, the field strength measuring unit 502 measures the field strength based on the strength of the signal received for each antenna element of the measurement antenna 501, for example. The field strength measuring unit 502 measures the field strength at a predetermined period, for example. The predetermined period is, for example, multiple times (approximately 1000 times) per second. The field strength measuring unit 502 outputs the measurement result to the microcomputer 504. The measurement result may be accompanied by a timestamp indicating the time when the measurement was performed.

[0055] The power storage unit 503 stores, for example, power supplied from an external source. The power storage unit 503 is realized by, for example, a battery or a capacitor. Note that the power storage unit 503 may store power generated by a power supply signal transmitted from the transmitter 100. When the measuring device 500 is disposed in connection with the receiver 200, the measuring device 500 may use the power storage unit 204 of the receiver 200. When the measuring device 500 is built into the receiver 200, the measuring device 500 may use the power storage unit 204 of the receiver 200.

[0056] Microcomputer 504 controls the operation of measuring device 500. Microcomputer 504 also executes statistical processing based on the measurement results measured by field strength measuring unit 502. Statistical processing includes, for example, calculation of an average value in a predetermined period and calculation of a peak value in a predetermined period. Note that statistical processing is not limited to these, and various processing can be performed. The predetermined period is, for example, a period corresponding to a period in which measuring device 500 transmits information related to the measurement results. The predetermined period may be the same as the period in which measuring device 500 transmits information related to the measurement results, or may be shorter. Microcomputer 504 outputs information related to the measurement results, such as information after statistical processing or information measured by field strength measuring unit 502, to data transceiver 505. Microcomputer 504 outputs information related to the measurement results, such as the date and time when the measurement was performed.

[0057] The microcomputer 504 may calculate the generated power based on the measurement result measured by the electric field strength measurement unit 502, assuming that the device itself is the receiver 200. Specifically, for example, the microcomputer 504 stores information about the efficiency of a rectifier. For example, the efficiency of the rectifier varies depending on the strength of the received power supply signal and the magnitude of the connected load (the magnitude of the load of the application executed by the generated power). The microcomputer 504 calculates the power based on the information about the efficiency of the rectifier and the measurement result measured by the electric field strength measurement unit 502. The microcomputer 504 performs statistical processing on data related to the calculated power. The microcomputer 504 outputs the data after the statistical processing to the data transceiver 505. The microcomputer 504 may calculate the power based on the data after the statistical processing.

[0058] A power switch may be connected to microcomputer 504. Pressing the power switch inputs whether or not to operate measuring device 500. When the user turns the power switch on, microcomputer 504 operates. When the user turns the power switch off, microcomputer 504 stops.

[0059] The data transceiver 505 performs processes such as converting digital data output from the microcomputer 504 to analog data and modulating the analog data. The data transceiver 505 also performs processes such as demodulating a data signal received by a data transmission / reception antenna 506 and digitizing the demodulated data.

[0060] The data transmission / reception antenna 506 is formed to be capable of efficiently transmitting and receiving radio waves in the 2.4 GHz band, for example. The data transmission / reception antenna 506 radiates the data signal output from the data transceiver 505. In addition, the data transmission / reception antenna 506 receives the data signal transmitted from the first information processing device 300.

[0061] <1.3 Configuration of the first information processing device> Fig. 4 is a diagram showing an example of a functional configuration of the first information processing device 300. As shown in Fig. 4, the first information processing device 300 exhibits functions as a communication unit 301, a storage unit 302, and a control unit 303.

[0062] The communication unit 301 performs processing for the first information processing device 300 to communicate with other devices, for example, the transmitter 100, the receiver 200, and the measuring device 500.

[0063] The storage unit 302 has, for example, a spatial information table 3021, a measurement result table 3022, etc. The tables stored in the storage unit 302 are not limited to these. The storage unit 302 also stores, for example, a table that stores information on the states of the transmitter 100 and the receiver 200 in addition to these.

[0064] The space information table 3021 is a table for storing information on the space as the measurement target, which will be described in detail later.

[0065] The measurement result table 3022 is a table for storing information related to the measurement results, which will be described in detail later.

[0066] The control unit 303 is realized by the processor reading a program stored in the storage unit and executing instructions included in the program. The control unit 303 performs functions shown as a reception control module 3031, a transmission control module 3032, a storage module 3033, a generation module 3034, and a proposal module 3035 by operating according to the program.

[0067] The reception control module 3031 controls the process in which the first information processing device 300 receives signals from other devices, such as the transmitter 100, the second information processing device 400, and the measuring device 500, in accordance with a communication protocol.

[0068] The transmission control module 3032 controls the process in which the first information processing device 300 transmits signals to other devices, such as the transmitter 100, the second information processing device 400, and the measuring device 500, in accordance with a communication protocol.

[0069] The storage module 3033 stores information acquired from the transmitter 100 and the measuring device 500 in the storage unit 302. Specifically, for example, information related to the measurement result is transmitted from the measuring device 500 at a predetermined period. The storage module 3033 acquires information output from the measuring device 500 and stores the acquired information in the measurement result table 3022.

[0070] The generation module 3034 generates a distribution map of the measurement target space based on the information about the measurement. Specifically, for example, the generation module 3034 refers to the measurement result table 3022 and generates a distribution map of the electric field intensity in the space. The generation module 3034 may generate a two-dimensional distribution map or a three-dimensional distribution map. When the power is calculated by the measuring device 500, the generation module 3034 may generate a power distribution map.

[0071] The proposal module 3035 calculates an arrangement of the transmitters 100 suitable for the space based on a distribution map in the space. The proposal module 3035 may calculate an optimal arrangement of the transmitters 100 by considering not only a change in the position of the transmitters 100 but also, for example, an increase or decrease in the number of transmitters 100. The proposal module 3035 may calculate an optimal arrangement of the transmitters 100 while changing not only the arrangement of the transmitters 100 but also parameters such as the direction in which the transmitters 100 are arranged and the strength of the radio waves emitted. The proposal module 3035 estimates the relationship between the electric field and the transmitters 100 based on, for example, the calculated distribution map, and adjusts the number, positions, and parameters of the transmitters 100 so that the electric field strength in the space is in a recommended state.

[0072] <2 Structure of the measuring device> FIG. 5 is an example of a diagram showing the structure of the measuring device 500 shown in FIG. 3. FIG. 5(a) shows an example of a perspective view of the measuring device 500. FIG. 5(b) shows a side view of the measuring device 500. In the measuring device 500 shown in FIG. 5, for example, a PCB 530 on which a circuit related to the measuring device 500 is formed is stored in a housing 510. The measuring device 500 has a length in the longitudinal direction of about 10 cm and lengths in the lateral and depth directions of about 5 cm. In the example shown in FIG. 5, a part of the side of the housing 510 is hollow, but the side of the housing 510 is not limited to being hollow.

[0073] The housing 510 is realized by, for example, a resin such as polyvinyl chloride. The housing 510 has, for example, a first member 511 and a second member 512. The first member 511 and the second member 512 are arch-shaped. The first member 511 and the second member 512 contact each other and are fixed to each other at a pier of the arch shape to form the housing 510. The arch-shaped first member 511 and the second member 512 are fixed to each other at the pier to form a space inside.

[0074] Convex portions 5115 and 5116 are formed on the inside of the pier of the first member 511. Convex portions 5125 and 5126 are formed on the inside of the pier of the second member 512. When the first member 511 and the second member 512 are fixed to each other, the distance between the convex portions 5115 and 5125 corresponds to the thickness of the PCB 530. The distance between the convex portions 5116 and 5126 corresponds to the thickness of the PCB 530. The PCB 530 is held in the housing 510 by being sandwiched between the convex portions 5115 and 5125 and the convex portions 5116 and 5126.

[0075] A measurement antenna 501 and other circuit areas 540 are formed along the longitudinal direction of the PCB 530. For example, a field intensity measurement unit 502, a power storage unit 503, a microcomputer 504, a data transceiver 505, and a data transmission / reception antenna 506 are mounted in the circuit area 540. The circuit areas 540 are formed on both sides of the PCB 530, for example.

[0076] One end of housing 510 in the direction in which circuit region 540 is formed is formed into a shape that allows it to be placed on a flat surface. For example, in Fig. 5, one end of housing 510 in the direction in which circuit region 540 is formed is formed flat to form mounting portion 520. For accurate measurement by measuring device 500, mounting portion 520 is desirably formed along a plane formed by the axis of measurement antenna 501.

[0077] The first member 511 has holes 5112 and 5113 formed along the longitudinal direction. The holes 5112 and 5113 are also formed at the same positions on the back side of the surface shown in FIG. 5. The holes 5112 and 5113 may be formed in the second member 512, or may be formed in both the first member 511 and the second member 512. The holes 5112 and 5113 are mechanisms for installing the measuring device 500 in the air at a height similar to that of a desk or a predetermined height. For example, the measuring device 500 can be fixed in the air by passing a linear object such as a thread, string, or wire between desks through the holes 5112 and 5113. For accurate measurement by the measuring device 500, it is desirable that the holes 5112 and 5113 are formed along the axial direction of the measuring antenna 501.

[0078] The first member 511 has a hole 5114 formed at one end in the direction in which the circuit region 540 is formed. The second member 512 has a hole 5124 formed at one end in the direction in which the circuit region 540 is formed. When the first member 511 and the second member 512 are fixed together, the hole 5114 and the hole 5124 are formed along the short side direction. The holes 5114 and 5124 are also formed at the same positions on the back side of the surface shown in FIG. 5. The holes 5114 and 5124 may be formed at the end on the side where the measurement antenna 501 is formed, or may be formed at both ends. The holes 5114 and 5124 are a mechanism for installing the measuring device 500 in the air. For example, the measuring device 500 can be fixed in the air by passing a linear object such as a thread, string, or wire through the holes 5114 and 5124. For accurate measurement by measuring device 500 , holes 5114 and 5124 are desirably formed along the axial direction of measurement antenna 501 .

[0079] Holes 5112, 5113, 5114, and 5124 may be any installation mechanism that allows measurement device 500 to be installed in midair through a linear object, and do not have to be holes. The installation mechanism may be, for example, a hook.

[0080] Switch 507 is attached at a position where the user can press it from the side surface of housing 510 .

[0081] Fig. 6 is an example of a perspective view showing the structure of the PCB 530 shown in Fig. 5. In Fig. 6, the measurement antenna 501 has antenna elements 5011, 5012, and 5013 formed along three axes in a Cartesian coordinate system. The longitudinal direction of the PCB 530 is formed along the direction in which the antenna element 5011 is formed. The lateral direction of the PCB 530 is formed along the direction in which the antenna element 5012 is formed. The electric field intensity measuring unit 502 may be mounted, for example, in the vicinity of the area in which the antenna elements 5011, 5012, and 5013 are formed. This makes it possible to measure the electric field intensity more accurately.

[0082] Fig. 7 is a perspective view of measuring device 500 shown in Fig. 5 placed on a flat surface. In Fig. 7, measuring device 500 is placed on the flat surface by mounting portion 520. Mounting portion 520 is provided at the end of housing 510 in the direction in which circuit region 540 is formed. Therefore, when measuring device 500 is placed with mounting portion 520 in contact with the flat surface, measurement antenna 501 is placed at a position away from the flat surface. Therefore, measuring device 500 can suppress a decrease in the reception efficiency of measurement antenna 501.

[0083] <3 Data Structure> 8 and 9 are diagrams showing data structures of tables stored in the first information processing device 300. Note that Fig. 8 and Fig. 9 are merely examples and do not exclude data that is not listed. In addition, even data that is listed in the same table may be stored in separate storage areas in the storage unit 302.

[0084] Fig. 8 is a schematic diagram showing an example of a data structure of a spatial information table 3021 stored in the first information processing device 300. The spatial information table 3021 shown in Fig. 8 is a table having columns of a spatial ID, setting date and time, spatial information, a transmitter, a receiver, and a measuring instrument, for example, with a setting ID as a key.

[0085] The setting ID is an item for storing the identification information of the setting. The space ID is an item for storing the identification information of the space. The setting date and time is an item for storing the date and time when the information about the space is set. The space information is an item for storing the information registered about the space. The space information includes, for example, the vertical distance of the room, the horizontal distance of the room, the height of the room, information about the material forming the space, information about the object placed in the space, information about the loss of radio wave intensity in the space, or at least any combination of these. The information about the material forming the space includes, for example, the floor material, the ceiling material, the wall material, the window glass material, or at least any combination of these. The information about the object placed in the space includes, for example, the position of the object such as a desk and a chair, the type of the object, the material of the object, or at least any combination of these. The space information may be stored in advance or may be set by the user. The space information is not limited to these. For example, any of the above may be absent, or information other than the above may be included.

[0086] The transmitter is an item that stores information about the transmitter 100. The item "transmitter" includes the coordinates where the transmitter 100 is located, a transmission gain, a transmission strength, or at least any combination of these. The receiver is an item that stores information about the receiver 200. The item "receiver" includes the coordinates where the receiver 200 is located, a receiving gain, a rectification efficiency, or at least any combination of these. The measuring device is an item that stores information about the measuring device 500. The item "measuring device" includes the coordinates where the measuring device 500 is located, or at least any combination of these.

[0087] Fig. 9 is a schematic diagram showing an example of the data structure of a measurement result table 3022 stored in the first information processing device 300. The measurement result table 3022 shown in Fig. 9 is a table having columns of measurement date and time, field strength, and estimated power, for example, with a setting ID as a key.

[0088] The measurement date and time is an item that stores the date and time when the measurement was performed. The electric field strength is an item that stores the measured electric field strength. The item "electric field strength" may store information that has been subjected to statistical processing, or may store information before the statistical processing is performed. The estimated power is an item that stores calculated power. The item "estimated power" may store information that has been subjected to statistical processing, or may store information before the statistical processing is performed. Note that if power is not calculated, the item "estimated power" may not be present.

[0089] <4 Actions> Fig. 10 is a flowchart illustrating an example of the operation of measuring device 500. In the explanation of Fig. 10, a case will be described in which transmitter 100 and measuring device 500 are arranged, for example, as shown in Fig. 11.

[0090] 11 is a diagram showing an example of spatial arrangement of transmitter 100 and measuring device 500. Transmitter 100 and measuring device 500 are arranged in a room, for example, 10 m in the x direction and 10 m in the y direction. Transmitters 100 are arranged, for example, at intervals of 3 m. Measuring device 500 is arranged, for example, so that its position in the y direction is aligned with that of transmitter 100 and its position in the x direction is between transmitters 100.

[0091] In step S11, measuring device 500 measures the electric field strength at a predetermined cycle. Specifically, measuring antenna 501 receives radio waves in the 920 MHz band transmitted from transmitter 100 by antenna elements 5011, 5012, and 5013 arranged along three axes in a Cartesian coordinate system. Field strength measuring unit 502 measures the electric field strength for each axis based on the strength of the radio waves received by antenna elements 5011, 5012, and 5013 at a cycle of, for example, multiple times per second.

[0092] In step S12, measuring device 500 performs statistical processing on the measured electric field strength. Specifically, microcomputer 504 calculates the electric field strength for one second based on the electric field strength measured during, for example, one second. More specifically, microcomputer 504 calculates the electric field strength for one second by, for example, taking the average of the electric field strengths measured during one second. Also, microcomputer 504 sets the peak value of the electric field strength measured during one second as the electric field strength for that one second. The period related to the statistical processing is not limited to one second and may be longer than one second.

[0093] In step S13, the measuring device 500 transmits the processed information to the first information processing device 300. Specifically, the microcomputer 504 transmits the information on which the statistical processing has been performed to the first information processing device 300 at a predetermined cycle. The predetermined cycle may be the same as the period related to the statistical processing, or may be longer than the period. The microcomputer 504 may transmit the average value and the peak value of the electric field strength to the first information processing device 300. The microcomputer 504 may transmit the difference between the average value and the peak value of the electric field strength to the first information processing device 300. The microcomputer 504 may transmit the measurement result on which the statistical processing has not been performed to the first information processing device 300.

[0094] When the first information processing device 300 receives information related to the measurement from the measuring device 500, the first information processing device 300 stores the received information in the measurement result table 3022. For example, when the first information processing device 300 is requested for specific information by the second information processing device 400, the first information processing device 300 executes processing according to the request. For example, when the second information processing device 400 requests the electric field intensity distribution in a space, the generation module 3034 generates a distribution map in the space of the measurement target based on the information related to the measurement stored in the measurement result table 3022.

[0095] Fig. 12 is a schematic diagram showing an example of a distribution map generated by generation module 3034. In Fig. 12, a space is divided into a predetermined grid, and the color of the grid indicates the electric field intensity. The division of the grid is set, for example, based on the arrangement of measuring devices 500. The grid may be set by arranging measuring devices 500, or measuring devices 500 may be arranged according to the grid.

[0096] Also, for example, when the second information processing device 400 requests the change over time in the electric field strength distribution, the generation module 3034 generates a distribution map of the electric field strength at multiple points in time based on the information about the measurement accumulated in the measurement result table 3022.

[0097] Furthermore, for example, when a change in the field strength distribution based on a change in the situation in the space or a change in the layout is requested by the second information processing device 400, the generation module 3034 refers to the space information table 3021 and acquires the date and time when the space-related settings were updated. The generation module 3034 acquires information on measurements before and after the update based on the measurement result table 3022, and generates a distribution map of the field strength based on the acquired information.

[0098] Furthermore, for example, when a proposal for improving the distribution of the electric field strength is requested by the second information processing device 400, the proposal module 3035 calculates an arrangement of the transmitters 100 suitable for the space based on a distribution map of the space.

[0099] Fig. 13 is a diagram showing an example of the spatial arrangement of transmitter 100 and measuring device 500. Unlike the example shown in Fig. 11, in Fig. 13, transmitter 100 is not placed at (x, y) = (6, 3).

[0100] Fig. 14 is a schematic diagram showing an example of a distribution map when the transmitter 100 is arranged as shown in Fig. 13. In Fig. 14, grids 31 and 32 have low electric field strength compared to other grids. The proposal module 3035 estimates the association between the electric field and the transmitter 100, and adjusts the number, position, and parameters of the transmitter 100 so that the electric field strength in the space becomes the recommended state. The proposal module 3035 proposes to arrange the transmitter 100 between the grid 31 and the grid 32 in Fig. 14, i.e., at (x, y) = (6, 3).

[0101] As described above, in the above embodiment, the WPT system 1 includes one or more transmitters 100, one or more receivers 200, multiple measuring devices 500, and the first information processing device 300. The transmitter 100 is installed in a measurement target space and transmits a power supply signal. The receiver 200 generates power by the power supply signal. The measuring device 500 measures the electric field intensity at the position where it is placed. The first information processing device 300 stores spatial information of the measurement target space in advance, and generates an electric field intensity distribution in the measurement target space based on the spatial information and the electric field intensity measured by the measuring device 500. This enables the first information processing device 300 to acquire the electric field intensity in the space in real time.

[0102] Therefore, according to the WPT system 1 according to this embodiment, it is possible to grasp the strength of radio waves in an indoor space.

[0103] In the above embodiment, the measuring devices 500 are arranged at regular intervals in the measurement target space, which allows the first information processing device 300 to obtain the electric field intensity in the space without bias.

[0104] In the above embodiment, measuring device 500 is placed at a position corresponding to the placement of transmitter 100. This allows first information processing device 300 to monitor the strength of the signal transmitted from transmitter 100 with high accuracy.

[0105] In the above embodiment, the measuring device 500 sets the rectification efficiency of the receiver 200 based on a predetermined condition, and calculates the power generated by the receiver 200 based on the measured electric field intensity. This enables the first information processing device 300 to obtain the power in the space in real time.

[0106] In the above embodiment, the first information processing device 300 generates at least two electric field intensity distributions measured at different times, which enables the first information processing device 300 to obtain the change over time in the intensity of the radio wave in space.

[0107] In the above embodiment, the first information processing device 300 generates at least two electric field intensity distributions in situations where the spatial information is different. This allows the first information processing device 300 to obtain the intensity of radio waves in the same space with different settings.

[0108] In the above embodiment, the measuring device 500 can measure the electric field strength in three axes. The first information processing device 300 generates an electric field strength distribution based on the electric field strength measured in three axes. This makes it possible to take into account the polarization plane of the power supply signal when considering the placement of the transmitter 100.

[0109] In the above embodiment, the first information processing device 300 calculates an optimal arrangement of the transmitter 100 based on the generated electric field intensity distribution. This enables the first information processing device 300 to efficiently improve the radio wave environment in space.

[0110] In the above embodiment, the measuring device 500 includes a measuring antenna 501, a measuring means (field strength measuring unit 502), a generating means (microcomputer 504), and a transmitting means (data transmitting / receiving antenna 506). The measuring antenna 501 receives radio waves transmitted from one or more transmitters that supply power wirelessly. The field strength measuring unit 502 measures the field strength multiple times per second based on the received radio waves. The microcomputer 504 generates information based on the measured field strength. The data transmitting / receiving antenna 506 transmits the generated information. In the WPT system 1 according to this embodiment, multiple transmitters 100 transmit power supply signals asynchronously and without directionality. The power supply signals transmitted from the transmitters 100 are reflected by multiple paths, causing overlapping and cancellation of waves. Therefore, the radio wave strength fluctuates greatly over time. In this embodiment, the field strength measuring unit 502 measures the field strength 1000 times per second, and the microcomputer 504 generates information based on the measured field strength. This makes it possible to measure the field strength with high accuracy in an environment in which a plurality of transmitters 100 transmit power supply signals asynchronously and without directionality.

[0111] In the above embodiment, the microcomputer 504 generates information by performing statistical processing on the measured electric field strength. This enables the electric field strength measurement unit 502 to suppress temporal fluctuations and acquire the electric field strength in a steady state.

[0112] Furthermore, the measuring device 500 may transmit not only the information after statistical processing, but also the measurement results, making it possible to use the results of measurements taken multiple times per second in a given analysis.

[0113] In the above embodiment, microcomputer 504 sets the rectification efficiency of receiver 200, which receives radio waves transmitted from transmitter 100 and generates power, based on predetermined conditions, and calculates the power generated by receiver 200 based on the received radio waves. This enables measuring device 500 to estimate the power in the space in real time.

[0114] In the above embodiment, the measurement antenna 501 is arranged along three axes in a Cartesian coordinate system. Due to the structure of the receiving antenna 201, the receiver 200 may be affected by the polarization plane. The measurement antenna 501 can receive radio waves in the x, y and z axes, and the field strength measuring unit 502 can measure the strength of the radio waves in the x, y and z axes. Therefore, it is possible to generate a field strength distribution based on the field strength measured in three axes, and the user can consider the optimal placement of the receiver 200 by referring to the field strength distribution.

[0115] Furthermore, in the above embodiment, measuring device 500 has housing 510 that houses measurement antenna 501 and circuit area 540. Housing 510 has mounting portion 520 at one end. Measurement antenna 501 is stored near the end opposite to the end where mounting portion 520 is formed. As a result, measurement antenna 501 is placed at a position away from the mounting surface, and measuring device 500 can prevent a decrease in the reception efficiency of measurement antenna 501.

[0116] <Modification> In the above embodiment, the first information processing device 300 generates the electric field strength distribution or the power distribution. However, the measuring device 500 may generate the electric field strength distribution or the power distribution. In this case, for example, at least one of the measuring devices 500 collects information related to measurement from the other measuring devices 500. The measuring device 500 that has collected the information generates the electric field strength distribution or the power distribution based on the collected information.

[0117] In the above embodiment, an example has been described in which the measurement antenna 501 has the antenna elements 5011, 5012, and 5013 formed along three axes in a Cartesian coordinate system. However, the antenna elements of the measurement antenna 501 may be antenna elements arranged along one axis in a Cartesian coordinate system, or may be antenna elements arranged along two axes in a Cartesian coordinate system.

[0118] In addition, in each of the above-mentioned embodiments, the application to the so-called WPT system 1 in which the transmission power consisting of an AC signal is wirelessly transmitted from the transmitter 100 to the receiver 200 has been described, but it is naturally possible to apply it to a system that provides power to the receiver 200 by other methods. Since such systems are known, detailed description will be omitted. As an example, there is a system that transmits power generated by solar power generation to the receiver 200 regardless of whether it is wired or wireless, and further, a system that transmits power to the receiver 200 by laser light regardless of whether it is wired or wireless. In addition, it is also applicable to a configuration in which vibration or sound is given to the receiver 200 and the receiver 200 converts the power of the vibration or the like into power. In addition, it is naturally applicable to a system that uses a known non-contact power supply technology other than the system that wirelessly receives the transmission power consisting of an AC signal, for example, a non-contact power supply technology using a magnetic field coupling method.

[0119] <5 Basic hardware configuration of computer> 15 is a block diagram showing the basic hardware configuration of a computer 90. The computer 90 includes at least a processor 91, a main storage device 92, an auxiliary storage device 93, and a communication IF (interface) 99. These are electrically connected to each other by a bus.

[0120] The processor 91 is hardware for executing an instruction set described in a program, and is composed of an arithmetic unit, a register, a peripheral circuit, and the like.

[0121] The main storage device 92 is for temporarily storing programs, data to be processed by the programs, etc. For example, it is a volatile memory such as a DRAM (Dynamic Random Access Memory).

[0122] The auxiliary storage device 93 is a storage device for saving data and programs, such as a flash memory, a hard disk drive (HDD), a magneto-optical disk, a CD-ROM, a DVD-ROM, or a semiconductor memory.

[0123] The communication IF 99 is an interface for inputting and outputting signals for communicating with other computers via a network using a wired or wireless communication standard. The network is composed of the Internet, a LAN, various mobile communication systems constructed by wireless base stations, etc. For example, the network includes 3G, 4G, 5G mobile communication systems, LTE (Long Term Evolution), wireless networks that can connect to the Internet via a specified access point (e.g., Wi-Fi (registered trademark)), etc. In the case of wireless connection, communication protocols include, for example, Z-Wave (registered trademark), ZigBee (registered trademark), Bluetooth (registered trademark), etc. In the case of wired connection, the network also includes a network that is directly connected by a USB (Universal Serial Bus) cable or the like.

[0124] It should be noted that the computer 90 can be virtually realized by distributing all or part of each hardware configuration among multiple computers 90 and connecting them together via a network. In this way, the computer 90 is a concept that includes not only a computer 90 housed in a single housing or case, but also a virtualized computer system.

[0125] <Basic functional configuration of computer 90> A description will now be given of the functional configuration of a computer realized by the basic hardware configuration of a computer 90 shown in Fig. 20. The computer includes at least the functional units of a control unit, a storage unit, and a communication unit.

[0126] The functional units of the computer 90 can also be realized by distributing all or part of the functional units among multiple computers 90 connected to each other via a network. The computer 90 is a concept that includes not only a single computer 90 but also a virtualized computer system.

[0127] The control unit is realized by the processor 91 reading out various programs stored in the auxiliary storage device 93, expanding the programs in the main storage device 92, and executing processes according to the programs. The control unit can realize functional units that perform various information processing depending on the type of program. In this way, the computer is realized as an information processing device that performs information processing.

[0128] The storage unit is realized by a main storage device 92 and an auxiliary storage device 93. The storage unit stores data, various programs, and various databases. Furthermore, the processor 91 can secure a storage area corresponding to the storage unit in the main storage device 92 or the auxiliary storage device 93 in accordance with a program. Furthermore, the control unit can cause the processor 91 to execute processes of adding, updating, and deleting data stored in the storage unit in accordance with the various programs.

[0129] A database refers to a relational database, which is used to manage data sets called tables, which are structured according to rows and columns, by relating them to each other. In a database, a table is called a table, a column in a table is called a column, and a row in a table is called a record. In a relational database, it is possible to set relationships between tables and associate them. Usually, a column is set in each table as a key for uniquely identifying a record, but setting a key in the column is not essential. The control unit can cause the processor 91 to add, delete, or update records in a specific table stored in the storage unit according to various programs.

[0130] The communication unit is realized by the communication IF 99. The communication unit realizes a function of communicating with other computers 90 via a network. The communication unit can receive information transmitted from other computers 90 and input the information to the control unit. The control unit can cause the processor 91 to execute information processing on the received information in accordance with various programs. In addition, the communication unit can transmit information output from the control unit to other computers 90.

[0131] Although several embodiments of the present disclosure have been described above, these embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and modifications are within the scope of the invention and its equivalents as described in the claims, as well as the scope and spirit of the invention.

[0132] In the above description, a "processor" refers to one or more processors. The at least one processor is typically a microprocessor such as a CPU (Central Processing Unit), but may be another type of processor such as a GPU (Graphics Processing Unit). The at least one processor may be a single-core or multi-core.

[0133] Furthermore, the at least one processor may be a processor in the broad sense, such as a hardware circuit (for example, a field-programmable gate array (FPGA) or an application specific integrated circuit (ASIC)) that performs part or all of the processing.

[0134] In the above explanation, information that gives an output for an input is sometimes explained using expressions such as "xxx table", but this information may be data of any structure, or may be a learning model such as a neural network that generates an output for an input. Therefore, "xxx table" can be called "xxx information".

[0135] Furthermore, in the above description, the configuration of each table is an example, and one table may be divided into two or more tables, or all or part of two or more tables may be one table.

[0136] In addition, in the above explanation, the processing may be explained using the "program" as the subject, but since the program is executed by a processor to perform a specified processing step by appropriately using a memory unit and / or an interface unit, etc., the subject of the processing may be the processor (or a device such as a controller having the processor, or a microcomputer).

[0137] The program may be installed in a device such as a computer, or may be, for example, in a program distribution server or a computer-readable (e.g., non-transitory) recording medium. In the following description, two or more programs may be realized as one program, or one program may be realized as two or more programs.

[0138] Furthermore, in the above description, identification numbers are used as identification information for various objects, but other types of identification information (for example, identifiers including alphabetic characters or symbols) other than identification numbers may also be used.

[0139] In addition, in the above description, when describing elements of the same type without distinguishing between them, reference signs (or common signs among the reference signs) may be used, and when describing elements of the same type with distinction between them, the identification numbers (or reference signs) of the elements may be used.

[0140] In the above description, the control lines and information lines are those that are considered necessary for the description, and not all control lines and information lines in the product are necessarily shown. All components may be connected to each other.

[0141] <Additional Notes> The matters described in the above embodiments will be supplemented below. (Appendix 1) A system comprising: one or more transmitters that are installed in a space to be measured and transmit a power supply signal; one or more receivers that generate power from the power supply signal; a plurality of measuring devices that measure electric field strength at the positions where the receivers are placed; and an information processing device that pre-stores spatial information of the space to be measured and generates an electric field strength distribution within the space to be measured based on the spatial information and the electric field strength measured by the plurality of measuring devices. (Appendix 2) The system described in (Appendix 1) wherein the measuring devices are positioned at regular intervals within the space to be measured. (Appendix 3) The measuring device is placed at a position corresponding to the placement of the transmitter (a system as described in Appendix 1). (Appendix 4) A system as described in any one of (Appendix 1) to (Appendix 3), in which the measuring instrument calculates the power generated by the receiver based on the measured electric field strength by setting the rectification efficiency of the receiver based on specified conditions. (Appendix 5) The system according to any one of (Supplementary Note 1) to (Supplementary Note 4), wherein the information processing device generates at least two electric field intensity distributions having different measurement times. (Appendix 6) The system according to any one of (Supplementary Note 1) to (Supplementary Note 5), wherein the information processing device generates at least two electric field intensity distributions in situations where the spatial information is different. (Appendix 7) A system described in any one of (Appendix 1) to (Appendix 6), wherein the measuring device is capable of measuring electric field strength in three axes, and the information processing device generates an electric field strength distribution based on the electric field strength measured in the three axes. (Appendix 8) The system according to any one of (Supplementary Note 1) to (Supplementary Note 7), wherein the information processing device calculates an optimal placement of transmitters based on the generated electric field intensity distribution. (Appendix 9) A measuring device comprising: an antenna for receiving radio waves transmitted from one or more transmitters that supply power wirelessly; a means for measuring electric field strength multiple times per second based on the received radio waves; a means for generating information based on the measured electric field strength; and a means for transmitting the generated information. (Appendix 10) The generating means generates information by performing statistical processing on the measured electric field intensity. (Appendix 11) The generating means is a measuring instrument described in (Appendix 9) or (Appendix 10) that calculates the power generated by the receiver based on the received radio waves by setting the rectification efficiency of the receiver, which receives the radio waves transmitted from the transmitter and generates power, based on specified conditions. (Appendix 12) A measuring instrument according to any one of (Appendix 9) to (Appendix 11), wherein the antennas are arranged along two axes in a Cartesian coordinate system. (Appendix 13) A measuring instrument as described in any one of (Appendix 9) to (Appendix 11), wherein the antennas are arranged along three axes in a Cartesian coordinate system. (Appendix 14) A measuring instrument as described in any one of (Appendix 9) to (Appendix 13), which has a case that houses an antenna, a generating means, and a transmitting means and has a mounting portion at one end, and the antenna is stored near the end opposite the end. (Appendix 15) A method performed by a measuring device having an antenna that receives radio waves transmitted from one or more transmitters that supply power wirelessly, the method comprising the steps of measuring electric field strength multiple times per second based on the received radio waves, generating information based on the measured electric field strength, and transmitting the generated information. (Appendix 16) A program to be executed by a measuring device having an antenna that receives radio waves transmitted from one or more transmitters that wirelessly supply power, the program causing the measuring device to execute the steps of measuring electric field strength multiple times per second based on the received radio waves, generating information based on the measured electric field strength, and transmitting the generated information. [Explanation of symbols]

[0142] 1. WPT system 100...Transmitter 101...Oscillator 102...Transmitting antenna 103...Microcomputer 104...Data transmitter / receiver 105…Data transmission / reception antenna 200…Receiver 201…Receiving antenna 202…Rectifier 203…Power management department 204…Electricity storage unit 205…Microcomputer 206...Data transmitter / receiver 207…Data transmission / reception antenna 300...First information processing device 400...Second information processing device 500…Measuring instrument

Claims

[Claim 1] One or more transmitters installed within the space to be measured and transmitting power supply signals, One or more receivers that generate power in response to the power supply signal, Multiple measuring instruments for measuring the electric field strength at the location where they are to be placed, An information processing device that stores spatial information of the measurement target space in advance and generates an electric field strength distribution within the measurement target space based on said spatial information and the electric field strength measured by a plurality of measuring instruments. A system equipped with these features.

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