JP6910902B2 - Mobile device and power supply system - Google Patents

Description

The present invention relates to mobile devices and power supply systems.

Conventionally, for example, in a factory, a moving device for transporting a load has been used. An electric double layer capacitor, a lead storage battery, or the like may be mounted as a power source in the mobile device, and Patent Document 1 below discloses a method of non-contact charging with such a power source as a charging target. Has been done. In non-contact charging, for example, power is transmitted non-contactly from a power transmission device installed in a factory to a power receiving device mounted on a mobile device, and the received power is supplied to a charging target mounted on the mobile device. It is done by. Further, in order to charge the mobile device at a plurality of locations in the factory, a method of installing a plurality of power transmission devices in the factory along the movement path of the mobile device is also adopted.

Japanese Unexamined Patent Publication No. 2005-261172

However, when the area where the mobile device moves becomes wide, a plurality of power transmission devices are scattered in the wide area. Therefore, some of the scattered power transmission devices may be installed in an area that is difficult for the user to monitor. Therefore, in order to monitor the state of the power transmission device, a communication unit for communicating with the server or the like is provided in the power transmission device itself, and information on the state of the power transmission device is transmitted from the communication unit to the server or the like. It is conceivable that the user can grasp the state of the power transmission device without going to the installation location of the power transmission device. However, a plurality of power transmission devices may be installed in the factory, and if all the power transmission devices are provided with a communication unit for communicating with a server or the like, the cost of constructing the power supply system increases.

Therefore, the present invention provides a mobile device and a power supply system capable of easily grasping the state of a power transmission device installed in an area where it is difficult for a user to monitor while keeping the cost of constructing the power supply system low.

The mobile device according to one aspect of the present invention is a power transmission device that receives power transmitted from the power transmission coil of the power transmission device, state information regarding the state of the power transmission device, and specific information that identifies the power transmission device related to the state information. It includes a power receiving device including a first receiving unit that receives from, and an output unit that outputs state information and specific information.

According to this aspect, the output unit provided in the mobile device outputs the state information and the specific information of the power transmission device. Therefore, the user can easily grasp the state of the power transmission device installed in the area that is difficult to monitor without going to the installation location of the power transmission device. Further, since it is not necessary to provide a communication unit for communicating with the server or the like in the power transmission device itself, the cost of constructing the power supply system can be kept low.

In the above aspect, the state information may include at least one of information on the state of power transmission, information on the state of maintenance of the power transmission device, and information on the communication state of the power transmission device.

According to this aspect, at least one of information on the power transmission status of the power transmission device installed in an area that is difficult to monitor, information on the maintenance status of the power transmission device, and information on the communication status of the power transmission device is provided. It can be easily obtained without going to the installation location.

In the above aspect, the power receiving device may further include a first transmission unit that transmits a power transmission request to the power transmission device, and the output unit may output information regarding whether or not there is a response to the power transmission request in the state information. ..

According to this aspect, since the information regarding the presence or absence of the response from the power transmission device is output to the output unit of the mobile device, even if the power transmission device cannot transmit the state information and the specific information to the power reception device, the user can use the power transmission device. It is possible to quickly discover that a communication abnormality error has occurred in the power transmission device without going to the installation location.

In the above aspect, the power receiving device further includes a determination unit that determines the content of the request regarding power transmission based on the state information and the specific information, and the first transmission unit relates to power transmission based on the content determined by the determination unit. The request may be sent to the transmission device.

According to this aspect, the mobile device can determine whether or not the request for transmission needs to be transmitted to the transmission device before transmitting the request. In addition, it is possible to transmit a power transmission request having contents according to the state of the power transmission device, and it is possible to efficiently supply power.

In the above aspect, the power receiving device may further include a reading unit that reads the specific information attached to the power transmission device from the power transmission device.

According to this aspect, the mobile device can read the specific information attached to the power transmission device. Therefore, even if an error has occurred in the power transmission device and communication with the power receiving device cannot be performed, the mobile device can output specific information of the power transmission device to the output unit.

In the above aspect, the power receiving device may further include a second receiving unit that receives state information and specific information from a server or another power receiving device.

According to this aspect, the mobile device can acquire the state information and the specific information received by the other mobile device. Therefore, the mobile device can acquire the state information and the specific information related to the power transmission device without directly communicating with the power transmission device, and a plurality of mobile devices are duplicated in order to receive the state information and the specific information. It is prevented that the reception process is performed.

In the above aspect, the power receiving device may further include a second transmitting unit that transmits state information and specific information to a server or another power receiving device.

According to this aspect, the state information and the specific information of the power transmission device collected by the mobile device can be transmitted from the power receiving device to the server or another power receiving device.

In the above aspect, the first receiving unit may receive the state information and the specific information by the power receiving coil.

According to this aspect, the mobile device uses the power receiving coil as a receiving antenna for receiving information, so that the power receiving device can provide the state information of the power transmitting device and the state information of the power transmitting device even if the power receiving device is not provided with an antenna for receiving information as an independent configuration. You can receive specific information. Therefore, the number of parts constituting the power receiving device can be reduced, and the cost of the power receiving device can be reduced.

The power supply system according to another aspect of the present invention includes a power transmission device including a power transmission coil that wirelessly transmits power, a power reception coil that receives power transmitted from the power transmission coil, and state information and state information regarding the state of the power transmission device. It is provided with a power receiving device including a first receiving unit that receives the specific information for specifying the power transmission device according to the above, and an output unit that outputs the state information and the specific information acquired from the power receiving device.

According to this aspect, the output unit outputs the state information and the specific information of the power transmission device. Therefore, the user can easily grasp the state of the power transmission device installed in the area that is difficult to monitor without going to the installation location of the power transmission device. Further, since it is not necessary to provide a communication unit for communicating with the server or the like in the power transmission device itself, the cost of constructing the power supply system can be kept low.

The power supply system according to another aspect of the present invention includes a power transmission device including a power transmission coil that wirelessly transmits power, a power reception coil that receives power transmitted from the power transmission coil, and state information and state information regarding the state of the power transmission device. A power receiving device including a first receiving unit that receives specific information for specifying the power transmission device according to the above, a second transmitting unit that transmits status information and specific information to the server, and status information and specific information from the power receiving device. It is provided with a server that receives the power transmission and an output unit that outputs the status information and specific information acquired from the power transmission.

According to this aspect, the state information and the specific information of the power transmission device received by the power receiving device can be output to an arbitrary device via the server. Therefore, the user can easily grasp the state of the power transmission device installed in the area that is difficult to monitor without going to the installation location of the power transmission device. Further, since it is not necessary to provide a communication unit for communicating with the server or the like in the power transmission device itself, the cost of constructing the power supply system can be kept low.

In the above aspect, the server may determine the destination of the state information and the specific information according to the state information, and may transmit the state information and the specific information to the determined destination.

According to this aspect, the server can transmit the state information and the specific information to an appropriate destination according to the state information of the power transmission device. As a result, the state information and the specific information of the power transmission device can be notified to the user having appropriate authority.

In the above aspect, the server determines the content of the request for power transmission based on the state information and the specific information, transmits the content of the determined request for power transmission to the power receiving device, and the power receiving device follows the content of the request for power transmission. It may further include a first transmitter that transmits a request for power transmission to the power transmission device.

According to this aspect, the mobile device can determine whether or not the request for transmission needs to be transmitted to the transmission device before transmitting the request. In addition, a request for power transmission having contents according to the state of the power transmission device can be transmitted from the server to the power receiving device, and power can be efficiently supplied between the power transmission device and the power receiving device.

According to the present invention, it is possible to provide a mobile device and a power supply system capable of easily grasping the state of a power transmission device installed in an area where it is difficult for a user to monitor while keeping the cost of constructing the power supply system low. ..

It is a figure which shows the outline of the power supply system which concerns on embodiment of this invention. It is a functional block diagram of the power supply system which concerns on embodiment of this invention. It is a figure which shows an example of the information output by the output part which concerns on embodiment of this invention. It is a flowchart of the 1st process executed by the mobile device which concerns on embodiment of this invention. It is a flowchart of the 2nd process executed by the mobile device which concerns on embodiment of this invention. It is a flowchart of the process executed by the power supply system which concerns on embodiment of this invention.

Embodiments of the present invention will be described with reference to the accompanying drawings. In each figure, those having the same reference numerals have the same or similar configurations.

FIG. 1 is a diagram showing an outline of a power supply system 300 according to an embodiment of the present invention. The figure simplifies the outline of the power supply system 300 that wirelessly supplies power to the first mobile device 10a and the second mobile device 10b that move in the factory.

The power supply system 300 includes a first power transmission device 40a, a second power transmission device 40b, a third power transmission device 40c, a fourth power transmission device 40d, and a power reception device 12 and an output unit 24 mounted on the first mobile device 10a. , The power receiving device 12 mounted on the second mobile device 10b and the output unit 24 are included. The power supply system 300 also includes a server 50 and a display 60. In the case of the example shown in the figure, the first power transmission device 40a and the second power transmission device 40b are installed in the first area 100 which is easy for the user to monitor, and the third power transmission device 40c and the fourth power transmission device 40d are monitored by the user. It is installed in the second area 200, which is difficult to do. Here, the user includes not only a monitor who monitors the state of the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d, but also a worker who works in the factory. , A person whose main business is not to monitor the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d.

In the power supply system 300 according to the present embodiment, the first mobile device 10a and the second mobile device 10b are mobile devices having a common configuration, respectively, and in the present specification, the first mobile device 10a and the second mobile device 10b. Are collectively referred to simply as "mobile device 10". Although two mobile devices 10 are shown in FIG. 1, the number of mobile devices 10 is not limited and is arbitrary.

The mobile device 10 according to the present embodiment is an automatic guided vehicle that transports cargo, is equipped with a power receiving device 12, and receives power wirelessly from the power receiving device 12. The moving device 10 may be a so-called AGV (Automatic Guided Vehicle). The moving device 10 may be a device that moves by being guided by magnetism generated from a magnetic tape or a magnetic rod arranged on the floor surface, or a device that recognizes the external environment by a camera or the like and moves autonomously. You may. FIG. 1 shows the moving device 10 and the moving path in a simplified manner.

The first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d are devices that transmit electric power by wireless power supply. In order to charge the mobile device 10 at an appropriate timing, a plurality of first power transmission device 40a, second power transmission device 40b, third power transmission device 40c, and fourth power transmission device 40d are installed at intervals in the factory. NS. The first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d are installed at a place where the mobile device 10 stops, for example, a place where the mobile device 10 loads and unloads luggage. good.

In the power supply system 300 according to the present embodiment, the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d are power transmission devices having a common configuration, respectively, and are described in the present specification. , The first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d are collectively referred to as "power transmission device 40". Although four power transmission devices 40 are shown in FIG. 1, the number of power transmission devices 40 installed is not limited and is arbitrary.

The power receiving device 12 is a device that receives electric power by wireless power supply. The power receiving device 12 is mounted on the mobile device 10 and receives the electric power transmitted from the power transmitting device 40. The power receiving device 12 is electrically connected to the charging target mounted on the mobile device 10, and the electric power received by the power receiving device 12 is charged to the charging target.

The output unit 24 is a device that outputs information, and may be, for example, a display that outputs visually recognized information, or a speaker that outputs audibly recognized information. Here, the information output by the output unit 24 may be the state information and the specific information of the power transmission device 40. The output unit 24 may have any configuration as long as it outputs the state information and specific information of the power transmission device 40. For example, the output unit 24 is provided for each state information of the power transmission device 40 and the power transmission device 40. It may be a lamp.

Here, the state information is information on the state of the power transmission device 40, and includes at least one of information on the state of power transmission, information on the maintenance state of the power transmission device 40, and information on the communication state of the power transmission device 40.

The information regarding the state of power transmission may include the amount of power transmitted, the amount of power received, the voltage transmitted, the voltage received, the current transmitted, the current received, the power feeding efficiency, the impedance of the power transmitting device 40, the impedance of the power receiving device 12, and the like. ..

The information regarding the maintenance status of the power transmission device 40 may include error details, information for identifying parts related to the error of the power transmission device 40, an individual identification number of the power transmission device 40, a software version, a circuit revision, and the like.

The information regarding the communication state of the power transmission device 40 may include transmission / reception throughput, communication noise amount, number of errors in transmission / reception of information, and the like.

Further, the specific information is information for specifying the power transmission device 40 related to the state information from the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d. The specific information may be, for example, a number, a code, a character string, or the like that uniquely identifies the power transmission device 40.

The server 50 transmits the state information and the specific information of the power transmission device 40 received from the power receiving device 12 to the mobile device 10 and the display 60. The server 50 transmits the information to the mobile device 10 other than the mobile device 10 equipped with the power receiving device 12 that has received the information directly from the power transmission device 40, or to the display 60 installed in the factory. The mobile device 10 and the display 60 that have received the information from the server 50 output the state information and the specific information of the power transmission device 40.

The display 60 is a device that displays the state information and specific information of the power transmission device 40, and may be, for example, a liquid crystal display device. The display 60 may be a device installed in or outside the factory and separate from the output unit 24 included in the mobile device 10.

The first area 100 is an area where the user can easily monitor the power transmission device 40. The first area 100 is, for example, an area where a relatively large number of users exist or an area which is relatively close to a user's work place. Therefore, the user can easily grasp the state of the first power transmission device 40a and the second power transmission device 40b installed in the first area 100.

The second area 200 is an area in which it is difficult for the user to monitor the power transmission device 40. In the second area 200, for example, an area where there are relatively few users, an area relatively far from the user's work place, or an obstacle exists between the user and the power transmission device 40, and the power transmission device 40 is located in the blind spot of the user. It is an area to do. Therefore, it is relatively difficult for the user to grasp the state of the third power transmission device 40c and the fourth power transmission device 40d installed in the second area 200.

FIG. 2 is a functional block diagram of the power supply system 300 according to the embodiment of the present invention. The power transmission device 40 includes a power transmission coil 42, a request reception unit 44, and an information transmission unit 46, and is provided with specific information 48. Further, the mobile device 10 includes a power receiving device 12, a reading unit 20, a charging target 22, and an output unit 24, and the power receiving device 12 includes a power receiving coil 13, a first communication unit 14, a second communication unit 15, and a determination unit 16. Is included.

The power transmission coil 42 transmits high frequency power to the power reception coil 13. The request receiving unit 44 receives a request regarding power transmission transmitted from the first communication unit 14 of the power receiving device 12. Here, the request for power transmission is a request for starting power transmission from the power transmission device 40 to the power receiving device 12, for example, a request for starting power transmission from the power transmission device 40 to the power receiving device 12. It may be a request for setting the content of power transmission from the power transmission device 40 to the power reception device 12 (transmission power amount, transmission voltage, transmission current, etc.).

The information transmission unit 46 transmits the state information regarding the state of the power transmission device 40 and the specific information that identifies the power transmission device 40 related to the state information to the power receiving device 12. In the power supply system 300 according to the present embodiment, the transmission of the state information and the specific information from the information transmission unit 46 is performed as a response to the request when the request reception unit 44 receives the request regarding power transmission. However, the information transmission unit 46 may transmit the state information and the specific information of the power transmission device 40 so that the first communication unit 14 can receive the information, and does not necessarily have to transmit the information as a response to the request for power transmission. For example, the information transmission unit 46 may transmit state information and specific information regardless of whether or not there is a request for power transmission.

As described above, the specific information 48 is information for identifying the power transmission device 40 related to the state information from the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d. be. The specific information 48 attached to the power transmission device 40 may be optically readable information such as a barcode, or electromagnetically readable information such as an IC tag, which may be readable from the outside. It's okay.

The power receiving coil 13 receives the electric power transmitted from the power transmitting coil 42. The power receiving coil 13 is electrically connected to, for example, a smoothing circuit (not shown) that smoothes the received power, and is electrically connected to the charging target 22 via a smoothing circuit or the like. The electric power received by the power receiving coil 13 is stored in the charging target 22 included in the mobile device 10 and consumed as a power source for the mobile device 10.

The power receiving coil 13 can also be used as an antenna for receiving the state information and specific information of the power transmission device 40 from the information transmitting unit 46.

According to the mobile device 10 according to the present embodiment, the mobile device 10 uses the power receiving coil 13 as a receiving antenna for receiving information, so that the power receiving device 12 does not need to be provided with an antenna for receiving information as an independent configuration. The power receiving device 12 can receive the state information and the specific information of the power transmitting device 40. Therefore, the number of parts constituting the power receiving device 12 can be reduced, and the cost of the power receiving device 12 can be reduced.

The first communication unit 14 includes a first transmission unit and a first reception unit. The first transmission unit included in the first communication unit 14 transmits a request regarding power transmission to the request reception unit 44 included in the power transmission device 40. The first transmission unit may transmit a request regarding power transmission based on the content determined by the determination unit 16. In the power feeding system 300 according to the present embodiment, the wireless power feeding is started when the request receiving unit 44 included in the power transmission device 40 receives the request related to the power transmission transmitted by the first communication unit 14.

Further, the first receiving unit included in the first communication unit 14 receives the state information and the specific information of the power transmission device 40 from the information transmitting unit 46 included in the power transmission device 40. The state information and specific information of the power transmission device 40 received by the first communication unit 14 are transmitted to the output unit 24 and the second communication unit 15.

The second communication unit 15 includes a second transmission unit and a second reception unit. The second transmission unit included in the second communication unit 15 transmits the state information and the specific information of the power transmission device 40 received by the first communication unit 14 to the server 50 or another mobile device 10.

Further, the second receiving unit included in the second communication unit 15 receives the state information and the specific information of the power transmission device 40 from the server 50 or another mobile device 10.

The determination unit 16 determines the content of the request for power transmission based on the state information and the specific information of the power transmission device 40. The determination unit 16 determines, for example, the amount of power to be transmitted, the voltage to be transmitted, the current to be transmitted, and the like for each power transmission device 40.

The output unit 24 outputs the state information and the specific information of the power transmission device 40. The mode of outputting the state information and the specific information of the power transmission device 40 by the output unit 24 is not limited, and any output mode as long as the user can understand the state of the power transmission device 40 and can specify the power transmission device 40 related to the state information. It may be.

The reading unit 20 reads the specific information 48 attached to the power transmission device 40. For example, when the specific information 48 is a barcode, the reading unit 20 may be a scanner that reads the barcode, and when the specific information 48 is an IC tag, the reading unit 20 reads the IC tag. It may be a sensor.

The server 50 receives the state information and the specific information of the power transmission device 40 from the mobile device 10, and transmits the above information to the display 60 and the other mobile device 10. Further, the server 50 may determine the destination of the status information and the specific information of the power transmission device 40 according to the status information, and transmit the above information to the determined destination. For example, when the information received by the server 50 includes an error content and the error content requires replacement of a part of the power transmission device 40, the server 50 sends the above information to the PC 62 of the parts manufacturer. You may send it. Further, if the error content can be dealt with in the factory, the server 50 may transmit the above information to the factory manager's PC64.

FIG. 3 is a diagram showing an example of information output by the output unit 24 according to the embodiment of the present invention. The figure illustrates a case where information is output as characters on the display when the output unit 24 is a display. The first information 70a is information shown when an error occurs in the third power transmission device 40c, and the second information 70b is information shown when an error occurs in the fourth power transmission device 40d.

FIG. 3 shows the communication status of "error content" and "information for identifying parts related to the error" which are information on the maintenance status, "transmission power amount" and "power received power amount" which are information on the transmission status. "Transmission / reception throughput", which is information about, is output. Furthermore, "presence or absence of power transmission", which is information regarding the presence or absence of power transmission, is output. As described above, the status information includes information on the maintenance status, information on the transmission status, information on the communication status, and information on the presence or absence of power transmission. The state information output to the output unit 24 is not necessarily limited to the information shown in FIG. 3, and any state information may be output by the output unit 24. Further, in FIG. 3, "information for identifying the power transmission device", which is specific information, is output.

The first information 70a includes "3" as information for identifying the power transmission device, "communication abnormality" as the error content, "0 kW" as the amount of received power, and "none" as the presence or absence of a response. The second information 70b receives "4" as information for identifying the power transmission device, "overvoltage abnormality" as the error content, "ABC-123" as information for identifying the component related to the error, and "1.7 kW" as the amount of power transmitted. The amount of electric power includes "1.5 kW", the transmission / reception throughput includes "Xbps", and the presence / absence of response includes "Yes".

First, the information that identifies the power transmission device will be described. In this example, the numbers "1", "2", "3" and "4" are used as information for identifying the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c and the fourth power transmission device 40d. I am using it. Since the first information 70a includes "3" as the information for identifying the power transmission device, it indicates that the information is related to the third power transmission device 40c. Further, since the second information 70b includes "4" as the information for identifying the power transmission device, it indicates that the information is related to the fourth power transmission device 40d. The information that identifies the power transmission device may be any information as long as it uniquely identifies the power transmission device, and may be a code, a character string, or the like.

Next, the content of the error will be described. The first information 70a includes "communication abnormality" as the error content, and indicates that the error occurring in the third power transmission device 40c is an abnormality related to communication. The second information 70b includes "overvoltage abnormality" as the error content, and indicates that the error occurring in the fourth power transmission device 40d is an abnormality related to the overvoltage being applied to the circuit. In FIG. 3, the error content is indicated by characters as "communication abnormality" or "overvoltage abnormality", but if the number, code, or the like corresponding to the type of error content is determined in advance, the output unit. 24 may output a number, a code, or the like corresponding to the error content.

Information for identifying a component related to an error will be described. The parts related to the error content are parts that can cause an error in the power transmission device 40. For example, a control unit (not shown) that controls the power transmission of the power transmission device 40 or a power transmission coil 42 that transmits power. Etc. Here, the control unit may be a microcomputer or the like. The "ABC-123" output in the "information for identifying the component related to the error" column of the second information 70b is an identification number of the component used in the fourth power transmission device 40d.

The amount of transmitted power will be described. The transmitted electric power is the amount of electric power transmitted from the transmission coil 42. According to the figure, it can be seen that the amount of electric power transmitted from the power transmission coil is "1.7 kW". The information output to the output unit 24 may be other than the amount of electric power, and may be, for example, information on impedance measured from the power transmission device side.

The amount of power received will be described. The received power amount is the amount of power received by the power receiving coil 13. According to the figure, it can be seen that the power receiving coil 13 did not receive power from the third power transmission device 40c. On the other hand, it can be seen that the electric energy of the electric power received by the electric power receiving coil 13 from the fourth power transmission device 40d is "1.5 kW". In general, the amount of received power is smaller than the amount of transmitted power, and the amount of received power and the amount of transmitted power may not match. The information output to the output unit 24 may be other than the amount of electric power, and may be, for example, information on impedance measured from the power receiving device side.

The transmission / reception throughput will be described. The transmission / reception throughput is the communication speed between the request reception unit 44 and the information transmission unit 46 of the power transmission device 40 and the first communication unit 14 of the power reception device 12. According to the second information 70b, it can be seen that the communication speed between the fourth power transmission device 40d and the power receiving device 12 is "Xbps". Here, "X" represents a certain numerical value, and "bps" represents a unit of communication speed of bits per second.

Whether or not there is a response will be described. The presence or absence of a response is whether or not the power transmission device 40 has responded to the request for power transmission transmitted from the power receiving device 12. According to the first information 70a, it can be seen that the third power transmission device 40c did not respond to the power transmission request transmitted from the power receiving device 12. Further, according to the second information 70b, it can be seen that the fourth power transmission device 40d has responded to the request regarding power transmission transmitted from the power receiving device 12.

Since the error of "communication abnormality" has occurred in the third power transmission device 40c, information cannot be transmitted from the third power transmission device 40c to the power reception device 12. Therefore, since the power receiving device 12 cannot acquire the information of "information for identifying the component related to the error", "transmission power amount", and "transmission / reception throughput" from the third transmission device 40c, the output column of the information in the first information 70a is displayed. Is displayed with "-" indicating that the power receiving device 12 cannot acquire information.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, information regarding the presence or absence of a response from the power transmission device 40 is output to the output unit 24 of the mobile device 10, so that the power transmission device 40 outputs the state information and the specific information. Even if transmission to the power receiving device 12 is not possible, the user can quickly discover that a communication abnormality error has occurred in the power transmission device 40 without going to the installation location of the power transmission device 40.

FIG. 4 is a flowchart of the first process executed by the mobile device 10 according to the embodiment of the present invention. The first process is a process of outputting the state information and the specific information of the power transmission device 40 by the output unit 24 included in the mobile device 10 when the state information and the specific information of the power transmission device 40 are received from the power transmission device 40.

First, the determination unit 16 provided in the power receiving device 12 determines the content of the request for power transmission based on the state information and the specific information received in the past (S10), and the first communication unit 14 determines the power transmission device 40. A request for power transmission is transmitted (S11). After that, the mobile device 10 determines whether or not the electric power is properly received from the power transmission device 40 (S12). Here, whether or not the electric power is properly received is determined by whether or not the power receiving device 12 is able to receive the electric power requested by the request for power transmission, and although a small amount of electric power can be received, the requested electric power is received. If the power cannot be received, it is determined that the power is not properly received.

When power is appropriately received from the power transmission device 40 (S12: YES), specific information and the amount of power transmitted are received from the power transmission device 40 (S14, S15). After that, the amount of received power is measured (S16). The power receiving device 12 measures the transmission / reception throughput related to the communication with the power transmitting device 40 (S17), and finally acquires the information regarding the presence / absence of a response (S18). In this case, the information regarding the presence / absence of a response is information indicating that there is a response.

The output unit 24 outputs the acquired state information and specific information of the power transmission device 40 (S26), and the second communication unit 15 transmits the information to the server 50 (S27). As described above, the first process when the electric power is appropriately received from the power transmission device 40 is completed.

When the electric power is not properly received (S12: NO), the power receiving device 12 determines whether or not the state information and the specific information of the power transmission device 40 can be received from the power transmission device 40 (S13).

If the power receiving device 12 cannot receive the state information and the specific information of the power transmitting device 40 from the power transmitting device 40 (S13: YES), the process proceeds to the second process indicated by “A”. The second process will be described in detail with reference to FIG.

When the power receiving device 12 can receive the state information and the specific information of the power transmission device 40 from the power transmission device 40 (S13: NO), the power receiving device 12 receives the specific information from the power transmission device 40 (S19). In addition, the error content and the identification number of the component related to the error content are received from the power transmission device 40 (S20, S21). Here, the error content and the identification number of the component related to the error content are included in the information regarding the maintenance status of the power transmission device 40. After that, the amount of power transmitted is received from the power transmission device 40 (S22), and the amount of power received is measured (S23). Further, the power receiving device 12 measures the transmission / reception throughput related to the communication with the power transmission device 40 (S24), and finally acquires the information regarding the presence / absence of a response (S25). In this case, the information regarding the presence / absence of a response is information indicating that there is a response.

The output unit 24 outputs the acquired state information and specific information of the power transmission device 40 (S26), and the second communication unit 15 transmits these information to the server (S27). This completes the first process.

The steps of receiving, measuring, and acquiring various information shown in FIG. 4 (S14 to S18, S19 to S25) do not necessarily have to be performed in the order described above, and may be performed in any order.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the output unit 24 provided in the mobile device 10 outputs the state information and the specific information of the power transmission device 40. Therefore, the user can easily grasp the state of the power transmission devices 40c and 40d installed in the second area 200, which is difficult to monitor, without going to the installation location of the power transmission devices 40c and 40d. Further, since it is not necessary to provide the second communication unit 15 for communicating with the server 50 or the like in the power transmission device 40 itself, the cost of constructing the power supply system 300 can be kept low. Further, the output unit 24 included in the mobile device 10 outputs the content of the error occurring in the power transmission device 40. Therefore, even if an error occurs in the power transmission device 40 installed in an area that is difficult for the user to monitor, the mobile device 10 moves to an area that is easy for the user to monitor, so that the error content and the error occur. It is possible to inform the user of information that identifies the power transmission device 40. Therefore, the mobile device 10 and the power supply system 300 can support the prompt detection of an error.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, information on the power transmission status of the power transmission devices 40c and 40d installed in the second area 200, which is difficult to monitor, and the maintenance status of the power transmission devices 40c and 40d. At least one of the information and the information regarding the communication status of the power transmission devices 40c and 40d can be easily obtained without going to the installation location of the power transmission devices 40c and 40d.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the state information and the specific information of the power transmission device 40 collected by the mobile device 10 can be transmitted from the power receiving device 12 to the server 50 or another power receiving device 12. can.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the state information and the specific information of the power transmission device 40 received by the power receiving device 12 can be output to an arbitrary device via the server 50. Therefore, the user can easily grasp the state of the power transmission devices 40c and 40d installed in the second area 200, which is difficult to monitor, without going to the installation location of the power transmission devices 40c and 40d. Further, since it is not necessary to provide the power transmission device 40 itself with a communication unit for communicating with the server 50 or the like, the cost of constructing the power supply system 300 can be kept low. Further, the power receiving device 12 transmits the information for identifying the content of the error occurring in the power transmission device 40 and the information for identifying the power transmitting device 40 in which the error has occurred to another mobile device 10 or the mobile device 10 via the server 50. It is possible to transmit to the display 60 which is not mounted on the display 60. Therefore, the mobile device 10 and the power supply system 300 can display the error generated in the power transmission device 40 on the output unit 24 and the display 60 of the mobile device 10, and can support the prompt detection of the error.

Further, according to the mobile device 10 and the power supply system 300 according to the present embodiment, it is possible to acquire information for identifying the parts related to the error content included in the power transmission device 40, and based on the acquired information, the power transmission device 40 It is possible to predict the occurrence of an error related to the other power transmission device 40 by performing an analysis such as identifying a component that is prone to error among the components provided in the system.

Further, according to the mobile device 10 and the power supply system 300 according to the present embodiment, the user grasps the power supply status from the power transmission amount by the power transmission coil 42 and the power reception amount by the power reception coil 13, and the power supply status changes. It can be monitored for occurrence.

From the balance between the transmitted power and the received electric power, the user can grasp whether or not the power is properly transmitted from the power transmitting device 40 to the power receiving device 12, and a plurality of the power transmitting device 40 and the power receiving device 12 can be used. Among the combinations, the combination with good power transmission efficiency and the combination with poor power supply efficiency can be identified.

FIG. 5 is a flowchart of the second process executed by the mobile device 10 according to the embodiment of the present invention. In the second process, when the power receiving device 12 cannot properly receive power from the power transmission device 40 and cannot receive the state information and specific information of the power transmission device 40 from the power transmission device 40, the output unit 24 included in the mobile device 10 , Is a process of outputting the state information and specific information of the power transmission device 40.

When the mobile device 10 transmits a request for power transmission to the power transmission device 40 by the power reception device 12, but cannot properly receive power and cannot receive the state information and specific information of the power transmission device 40. The reading unit 20 reads the specific information 48 attached to the power transmission device 40 (S30). After that, the output unit 24 identifies the error content (S31) and measures the amount of received power (S32). Next, information regarding the presence or absence of a response is acquired (S33). In this case, the content of the error is a communication abnormality, and the information regarding the presence or absence of a response is information indicating that there is no response. In addition, even if there is no response to the request for power transmission, there is a possibility that power transmission is being performed, so the amount of power received is measured to confirm the presence or absence of power transmission.

The output unit 24 outputs the state information and the specific information of the power transmission device 40 (S34), and the second communication unit 15 transmits the information to the server (S35). This completes the second process.

According to the mobile device 10 according to the present embodiment, the mobile device 10 can read the specific information 48 attached to the power transmission device 40. Therefore, even if an error has occurred in the power transmission device 40 and communication with the power reception device 12 cannot be performed, the mobile device 10 can output the specific information of the power transmission device 40 to the output unit 24. Further, when the power is not properly transmitted from the power transmission device 40 to the power reception device 12 and the state information and the specific information of the power transmission device 40 are not received, the output unit 24 outputs that a communication abnormality has occurred. do. Therefore, the mobile device 10 can support the prompt detection of an error.

FIG. 6 is a flowchart of processing executed by the power supply system 300 according to the embodiment of the present invention. In the figure, after the second mobile device 10b receives information on the maintenance status of the third power transmission device 40c from the third power transmission device 40c, the information is transmitted to the server 50 and the first mobile device 10a, and the server 50 and the first mobile device 10a are transmitted. The flow in which the first mobile device 10a performs processing based on the information is shown. In this example, it is assumed that some error has occurred in the third power transmission device 40c, and the information regarding the maintenance status of the third power transmission device 40c includes information regarding the error.

The second communication unit 15 included in the second mobile device 10b transmits information regarding the maintenance status of the third power transmission device 40c and information identifying the third power transmission device 40c to the server 50 and the first mobile device 10a (S40). .. Here, when the distance between the second mobile device 10b and the first mobile device 10a becomes short, such as when the second mobile device 10b passes by the first mobile device 10a, maintenance of the third power transmission device 40c is performed by short-range wireless communication or the like. Information about the state and information identifying the third power transmission device 40c may be transmitted to the first mobile device 10a.

Based on the information received from the second mobile device 10b, the server 50 has the first power transmission device 40a, the second power transmission device 40b, the third power transmission device 40c, and the fourth power transmission device 40d to the first mobile device 10a and the second mobile device 10b. The amount of power supplied to the mobile device 10, that is, the amount of power supplied from the entire power supply system 300 to the mobile device 10 is calculated (S41). The server 50 transmits the content of the request for power transmission to the first mobile device 10a and the second mobile device 10b based on the calculation result (S42).

Here, the server 50 causes an error when the total amount of electric energy transmitted from the plurality of power transmission devices 40 to the power receiving device 12 does not reach a predetermined value due to an error in the third power transmission device 40c. Determine the content of the power transmission requirement so that the total amount of power transmitted from the power transmission device (first power transmission device 40a, second power transmission device 40b, and fourth power transmission device 40d) to the power receiving device 12 reaches a predetermined value. Then, the content of the request may be transmitted to the first mobile device 10a and the second mobile device 10b.

The method of increasing the amount of power transmitted from the power transmission device 40 without error is the method of increasing the amount of power transmitted from the power transmission device 40 without error or moving from the power transmission device 40. There are methods such as lengthening the time for the device 10 to receive electric power. However, a method other than these may be used to determine the content of the power transmission requirement so that the power supplied from the entire power supply system 300 to the mobile device 10 is not reduced.

The content of the power transmission request transmitted from the server 50 is received by the second communication unit 15 of the first mobile device 10a and the second communication unit 15 of the second mobile device 10b (S45, S47).

The first communication unit 14 of the second mobile device 10b transmits a power transmission request to the power transmission device 40 according to the content of the power transmission request received by the second communication unit 15 (S46). After that, the second mobile device 10b receives electric power from the second power transmission device 40b. This completes the processing of the second mobile device 10b.

In this example, since an error has occurred in the third power transmission device 40c, the first communication unit 14 of the first mobile device 10a does not transmit the power transmission request to the third power transmission device 40c, and the third power transmission device 40c Since the state information and the specific information have already been acquired by the second mobile device 10b, the state information and the specific information of the third power transmission device 40c are not received from the third power transmission device 40c (S48). Therefore, the first mobile device 10a passes through the installation location of the third power transmission device 40c without receiving power from the third power transmission device 40c. This completes the process of the first mobile device 10a.

The server 50 determines the transmission destination of the state information and the specific information of the power transmission device 40 according to the received state information of the power transmission device 40 (S43). After that, the state information and the specific information are transmitted to the determined destination (S44). For example, when an error occurs in the power transmission device 40 that cannot be resolved by the equipment in the factory where the power transmission device 40 is installed, the server 50 adds the parts of the power transmission device 40 in addition to the state information and the specific information. Information such as parts ordering may be transmitted to the PC 62 of the providing parts manufacturer. Further, in the case of an error content that can be dealt with in the factory where the power transmission device 40 is installed, the server 50 may transmit the state information and the specific information to the factory manager's PC64. This completes the processing of the server 50.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the mobile device 10 can determine whether or not it is necessary to transmit the request regarding power transmission to the power transmission device 40 before transmitting the request. .. Further, the server 50 can transmit the power transmission request of the contents according to the state of the power transmission device 40 to the power receiving device 12, and the power can be efficiently supplied between the power transmission device 40 and the power receiving device 12.

Further, in order to reduce the load on the power transmission device 40 in which errors frequently occur, the server 50 transmits the content of the power transmission request for reducing the power supply time of the power transmission device 40 to the mobile device 10. can do.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the mobile device 10 can acquire the state information and the specific information received by the other mobile device 10. Therefore, the mobile device 10 can acquire the state information and the specific information related to the power transmission device 40 without directly communicating with the power transmission device 40, and a plurality of mobile devices can receive the state information and the specific information. It is prevented that 10 are duplicated and the reception process is performed.

According to the mobile device 10 and the power supply system 300 according to the present embodiment, the server 50 can transmit the state information and the specific information to an appropriate destination according to the state information of the power transmission device 40. As a result, the state information and the specific information of the power transmission device 40 can be notified to the user having appropriate authority.

The embodiments described above are for facilitating the understanding of the present invention, and are not for limiting and interpreting the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those exemplified, and can be changed as appropriate. In addition, the configurations shown in different embodiments can be partially replaced or combined.

10 ... Mobile device, 12 ... Power receiving device, 13 ... Power receiving coil, 14 ... First communication unit, 15 ... Second communication unit, 16 ... Determining unit, 20 ... Reading unit, 22 ... Charging target, 24 ... Output unit, 40 ... power transmission device, 40a ... first power transmission device, 40b ... second power transmission device, 40c ... third power transmission device, 40d ... fourth power transmission device, 42 ... power transmission coil, 44 ... request receiver, 46 ... information transmission unit, 48 ... Specific information, 50 ... Server, 60 ... Display, 62 ... Parts manufacturer's PC, 64 ... Factory manager's PC, 70a ... 1st information, 70b ... 2nd information, 100 ... 1st area, 200 ... 2nd area , 300 ... Power transmission system

Claims (11)

A mobile device that sequentially passes by a plurality of power transmission devices installed in a predetermined area and can be charged by the plurality of power transmission devices.
Wherein the power receiving coil for receiving the power transmitted from the power transmission coil of the power transmitting device, wherein a first transmission unit that transmits a request for power transmission to the power transmission device, status information about the state of the power transmission device in which the power transmitting device transmits and a power receiving device including a first receiver for receiving specific information for specifying the power transmitting apparatus according to the state information,
When the first receiving unit can receive electric power for the request related to the power transmission, at least the information regarding the state of power transmission and the specific information among the state information are output, and the first receiving unit relates to the power transmission. When the power for the request cannot be received and the state information can be received, at least the information regarding the maintenance state of the power transmission device and the specific information among the state information are output, and the first reception is performed. When the unit cannot receive the electric power for the request related to the power transmission and cannot receive the state information, at least an output unit that outputs information on the communication state of the power transmission device and an output unit.
A mobile device equipped with. Before Symbol output unit outputs included in the state information information about the presence or absence of a response to the request relating to the transmission,
The mobile device according to claim 1. The power receiving device further includes a determination unit that determines the content of the power transmission request based on the state information and the specific information.
The first transmission unit transmits a request for power transmission to the power transmission device based on the content determined by the power transmission unit.
The mobile device according to claim 1 or 2. The power receiving apparatus further comprises the said attached to the power transmitting device takes read the specific information reading unit,
When the first receiving unit cannot receive the specific information of the power transmission device, the output unit outputs the specific information attached to the power transmission device read by the reading unit.
The mobile device according to any one of claims 1 to 3. The power receiving device further includes a second receiving unit that receives the state information and the specific information from a power receiving device of a server or another mobile device.
The mobile device according to any one of claims 1 to 4. The power receiving device further includes a second transmitting unit that transmits the state information and the specific information to a server or another power receiving device.
The mobile device according to any one of claims 1 to 5. The first receiving unit receives the state information and the specific information by the power receiving coil.
The mobile device according to any one of claims 1 to 6. A power supply system including a plurality of power transmission devices installed in a predetermined area and at least one mobile device that sequentially passes by the plurality of power transmission devices and can be charged by the plurality of power transmission devices.
The power transmitting device, viewed contains a transmitting coil for transmitting power wirelessly,
The moving device is
A power receiving coil that receives power transmitted from the power transmission coil, a first transmission unit that transmits a request for power transmission to the power transmission device, state information regarding the state of the power transmission device transmitted by the power transmission device, and the state. a power receiving device including a first receiver for receiving specific information for specifying the power transmitting apparatus of the information,
When the first receiving unit can receive electric power for the request related to the power transmission, at least the information regarding the state of power transmission and the specific information among the state information are output, and the first receiving unit relates to the power transmission. When the power for the request cannot be received and the state information can be received, at least the information regarding the maintenance state of the power transmission device and the specific information among the state information are output, and the first reception is performed. If the part can not receive the state information in a case that can not receive power for the request relating to the transmission includes at least the information regarding the communication status of the power transmitting device to output the state information and the specific information output unit ,
Power supply system. A power supply system including a plurality of power transmission devices installed in a predetermined area and at least one mobile device that sequentially passes by the plurality of power transmission devices and can be charged by the plurality of power transmission devices.
Equipped with a server and output
The power transmitting device, viewed contains a transmitting coil for transmitting power wirelessly,
The mobile device relates to a power receiving coil that receives power transmitted from the power transmission coil, a first transmission unit that transmits a request for power transmission to the power transmission device, and a state of the power transmission device transmitted by the power transmission device. a first receiver for receiving specific information for specifying the power transmitting apparatus according to the state information and the state information, when the first receiving unit could receive power to a request relating to the power transmission, the status information If at least the information on the state of power transmission and the specific information are output, and the first receiving unit cannot receive the power for the request related to the power transmission and can receive the state information, the state information. When at least the information regarding the maintenance status of the power transmission device and the specific information are output, and the first receiving unit cannot receive the power for the request regarding the power transmission and cannot receive the status information. includes a power receiving device and a second transmission unit that transmits information regarding the communication status of at least the power transmitting device to a server,
The server receives the state information and the specific information from the power receiving device,
The output unit, you output the state information and the specific information the server received from the power receiving device,
Power supply system. The server determines the destination of the state information and the specific information according to the state information, and transmits the state information and the specific information to the determined destination.
The power supply system according to claim 9. The server determines the content of the request regarding the power transmission based on the state information and the specific information, and transmits the determined content of the request regarding the power transmission to the power receiving device.
The power receiving device further includes a first transmission unit that transmits a power transmission request to the power transmission device according to the content of the power transmission request.
The power supply system according to claim 9 or 10.

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