Abnormality detection device and abnormality detection method thereof

Abstract

The present invention relates to an abnormality detection device and an abnormality detection method thereof. An abnormality detection device is provided, comprising a processing unit and a communication unit, the communication unit being capable of communicating with a ground power supply device that transmits power to a vehicle in a contactless manner. The processing unit is configured to detect power theft or leakage in the ground power supply device based on a time-dependent change pattern of a power supply amount of the ground power supply device or a parameter related to the power supply amount, the time-dependent change pattern being a time-dependent change mode.

Description

Technical Field

[0001] The invention relates to an abnormality detection device and an abnormality detection method thereof. Background Art

[0002] Conventionally, a contactless power supply system is known that transmits power in a contactless manner from a ground power supply device set on the ground to a moving vehicle by using a transmission method such as magnetic field coupling (electromagnetic induction), electric field coupling, magnetic field resonance coupling (magnetic field resonance) and electric field resonance coupling (electric field resonance) (see Japanese Unexamined Patent Application No. 2018-157686 (JP2018-157686A)). Summary of the invention

[0003] Conventional contactless power supply systems do not have a device for detecting power theft or leakage from ground power supply equipment, and therefore have a problem of difficulty in detecting power theft or leakage.

[0004] The present invention relates to an abnormality detection device and an abnormality detection method thereof, which can detect power theft or leakage from ground power supply equipment.

[0005] A first aspect of the present invention relates to an abnormality detection device, comprising a processing unit and a communication unit, the communication unit being capable of communicating with a ground power supply device that transmits power to a vehicle in a contactless manner. Then, the processing unit is configured to detect power theft or leakage in the ground power supply device based on a time-dependent change pattern that is a time-dependent change pattern of the power supply amount of the ground power supply device.

[0006] According to the abnormality detection device of the first aspect described above, it is possible to detect power theft or leakage from the ground power supply equipment.

[0007] In the abnormality detection device of the first aspect described above, the processing unit may be configured to determine that power theft or leakage is occurring in the ground power supply equipment when power supply is continuously performed based on a time-dependent change pattern of the ground power supply equipment.

[0008] In the abnormality detection device of the first scheme described above, the processing unit may be configured to: based on a time-related change pattern of the ground power supply equipment, when the processing unit determines that power supply is performed non-periodically, determine that power theft or leakage is occurring in the ground power supply equipment.

[0009] In the abnormality detection device of the above configuration, the processing unit can be configured to: when determining whether power supply is performed continuously or periodically, consider at least one of the congestion level and traffic congestion level of the road where the ground power supply equipment is installed when obtaining the time-related change pattern of the ground power supply equipment.

[0010] In the abnormality detection device of the first scheme above, the processing unit may be configured to: based on the time-related change pattern of the ground power supply equipment, when the processing unit determines that power supply is intermittently performed, determine that power theft or leakage does not occur in the ground power supply equipment.

[0011] In the abnormality detection device of the above-mentioned first scheme, the processing unit can be configured to: determine that power theft or leakage is occurring in the ground power supply equipment when the power supply amount of the ground power supply equipment is greater than zero or a predetermined amount of time that can be regarded as zero for a predetermined time or more.

[0012] In the abnormality detection device of the above-mentioned first aspect, the predetermined time may be set in consideration of at least one of a degree of congestion and a degree of traffic jam of a road where the ground power supply equipment is installed.

[0013] In the abnormality detection device configured as described above, the congestion degree may be set based on the number of vehicles passing through the road per predetermined time; and the traffic jam degree may be set based on the travel speed of the vehicles passing through the road.

[0014] In the abnormality detection device of the above-mentioned first scheme, the processing unit can be configured to: when the power supply of the ground power supply equipment is greater than zero or a predetermined amount of time that can be regarded as zero for a predetermined time or more, when the peak value of the power supply is a predetermined value or more, determine that power theft is occurring in the ground power supply equipment, and the processing unit can be configured to determine that leakage is occurring in the ground power supply equipment when the peak value of the power supply is less than a predetermined value.

[0015] In the abnormality detection device of the first aspect described above, the processing unit may be configured such that when the processing unit determines that power theft or leakage is occurring in the ground power supply equipment, the processing unit instructs the ground power supply equipment to prohibit power supply via the communication unit.

[0016] In the abnormality detection device of the above-mentioned first scheme, the communication unit can be configured to be able to communicate with external relevant organizations; and the processing unit can be configured so that when the processing unit determines that electricity theft or leakage is occurring in the ground power supply equipment, the processing unit notifies the external relevant organizations via the communication unit that electricity theft or leakage is occurring in the ground power supply equipment.

[0017] In the abnormality detection device of the first solution described above, a storage unit may be further provided, the storage unit being configured to store at least information about the time-correlated change patterns of the plurality of ground power supply devices. The processing unit may be configured to detect power theft or leakage of the first ground power supply device based on the time-correlated change pattern of the first ground power supply device received from the first ground power supply device as one of the ground power supply devices via the communication unit and the time-correlated change pattern of the second ground power supply device stored in the storage unit.

[0018] In the abnormality detection device of the first aspect described above, the second ground power supply device may be at least one ground power supply device installed near the first ground power supply device.

[0019] A second aspect of the present invention relates to an abnormality detection method of an abnormality detection device, the abnormality detection device including a processing unit and a communication unit, the communication unit being configured to be able to communicate with a ground power supply device that transmits power to a vehicle in a contactless manner. The abnormality detection method detects power theft or leakage in the ground power supply device based on a time-dependent change pattern of a time-dependent change pattern of a parameter of a power supply amount of the ground power supply device or a parameter related to the power supply amount.

[0020] According to the abnormality detection method of the abnormality detection device of the second aspect described above, power theft or leakage from the ground power supply equipment can be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which like reference numerals represent like elements, and in which:

[0022] Figure 1 is a schematic configuration diagram of a contactless power supply system including an abnormality detection device of an embodiment serving as an example of the present invention;

[0023] Figure 2 It is shown Figure 1 A schematic diagram showing the detailed configuration of the ground power supply equipment and the vehicle;

[0024] Figure 3 yes Figure 2 A schematic configuration diagram of a power transmission controller and a device connected to the power transmission controller is shown;

[0025] Figure 4 yes Figure 2 A schematic configuration diagram of a vehicle controller and devices connected to the vehicle controller;

[0026] Figure 5 is an example of a time-dependent variation pattern of the power supply amount of a ground power supply device when a plurality of vehicles are continuously running on a normal ground power supply device where power theft or leakage has not occurred;

[0027] Fig. 6A An example of a time-dependent variation pattern of the amount of power supplied by a ground power supply device when a vehicle continuously travels on the ground power supply device where power theft or leakage occurs is shown;

[0028] Figure 6Bis a schematic diagram showing an example of a time-dependent variation pattern of the amount of power supplied by a ground power supply device when a vehicle is not traveling on a ground power supply device where power theft or power leakage occurs;

[0029] Figure 7 is a flowchart illustrating the processing content performed between each ground power supply device and the server by the abnormality detection device of the first embodiment of the present invention in order to determine whether power theft or leakage occurs in each power supply device;

[0030] Figure 8 is a schematic diagram showing an example of a time-dependent change pattern when no power theft or leakage occurs in the ground power supply equipment and the congestion level of the road where the ground power supply equipment 2 is installed is high;

[0031] Fig. 9 is a schematic diagram showing an example of a time-dependent change pattern when no power theft or leakage occurs in the ground power supply equipment and the traffic congestion level of the road where the ground power supply equipment 2 is installed is high;

[0032] Fig.10 shows an example of a time-dependent variation pattern of the power supply amount of each of two adjacent ground power supply apparatuses when the two adjacent ground power supply apparatuses are normal among a plurality of ground power supply apparatuses arranged continuously along a driving lane;

[0033] Fig.11A An example of a time-dependent variation pattern of the power supply amount of a normal ground power supply device and an example of a time-dependent variation pattern of the power supply amount of a ground power supply device where power theft or power leakage occurs are shown;

[0034] Fig. 11B An example of a time-dependent variation pattern of the power supply amount of a normal ground power supply device and an example of a time-dependent variation pattern of the power supply amount of a ground power supply device where power theft or power leakage occurs are shown;

[0035] Fig. 11C An example of a time-dependent variation pattern of the power supply amount of a normal ground power supply device and an example of a time-dependent variation pattern of the power supply amount of a ground power supply device where power theft or power leakage occurs are shown;

[0036] Fig.11D showing an example of a time-dependent variation pattern of the power supply amount of a normal ground power supply device and an example of a time-dependent variation pattern of the power supply amount of a ground power supply device where power theft or power leakage occurs; and

[0037] Fig.12 1 is a flowchart illustrating the processing contents executed between each ground power supply equipment and the server by the abnormality detection device according to the second embodiment of the present invention in order to determine whether power theft or power leakage occurs in each power supply equipment. DETAILED DESCRIPTION

[0038] The embodiments are described in detail below with reference to the accompanying drawings. In the following description, similar components are given the same reference numerals.

[0039] An abnormality detection device of an embodiment serving as an example of the present invention is described below. Figure 1 is a schematic configuration diagram of a contactless power supply system 100 provided with an abnormality detection device.

[0040] The contactless power supply system 100 includes a server 1, a plurality of ground power supply devices 2 placed continuously at predetermined intervals along a road, and a plurality of vehicles 3 equipped with power receiving devices 5 for receiving power wirelessly transmitted from the ground power supply devices 2 (see Figure 2 ). The contactless power supply system performs contactless power transmission from the ground power supply equipment 2 to the vehicle 3 by magnetic field resonance coupling (magnetic field resonance). Specifically, in the first embodiment, the contactless power supply system 100 performs contactless power transmission from the ground power supply equipment 2 to the vehicle 3 when the vehicle 3 is traveling. Therefore, the ground power supply equipment 2 transmits power to the vehicle 3 in a contactless manner when the vehicle 3 is traveling, and the vehicle 3 receives power from the ground power supply equipment 2 in a contactless manner when the vehicle 3 is traveling.

[0041] In this specification, the term "driving" refers to a state in which the vehicle is located on a driving road. Therefore, the term "driving" includes not only a state in which the vehicle is actually traveling at any speed greater than zero, but also a state in which the vehicle is stopped on the road, for example, due to waiting for a traffic light. On the other hand, even if the vehicle is located on the road, for example, if the vehicle is parked or stopped, the state is not included as driving. In addition, in the following description, the road on which the ground power supply equipment 2 is installed is referred to as an "energized road" as needed.

[0042] The server 1 includes a server communication unit 11 , a server storage unit 12 , and a server processing unit 13 .

[0043] The server communication unit 11 has a communication interface circuit for connecting the server 1 to the network 6 via, for example, a gateway. The server 1 communicates with the ground power supply equipment 2 and the vehicle 3 via the server communication unit 11, and communicates with external related agencies (for example, a maintenance company of the ground power supply equipment 2 or a public agency such as a public security bureau) as needed.

[0044] The server storage unit 12 has a storage medium such as a hard disk drive (HDD), an optical recording medium, a semiconductor memory, and stores various computer programs, data, and the like for processing in the server processing unit 13 .

[0045] The server processing unit 13 has one or more central processing units (CPUs) and their peripheral circuits. The server processing unit 13 executes various computer programs stored in the server storage unit 12, and uniformly controls the overall actions of the server 1, and is, for example, a processor. The processing performed by the server processing unit 13 and the server 1 will be described later with reference to Figure 5 etc. for description.

[0046] Figure 2 1 is a schematic diagram showing detailed configurations of the ground power supply equipment 2 and the vehicle 3 according to the first embodiment.

[0047] like Figure 2 As shown, the ground power supply device 2 includes a ground-side communication device 71, a power transmission device 4, a power source 21, and a power transmission controller 22. The ground-side communication device 71, the power source 21, and the power transmission controller 22 can be embedded in the road, or can be arranged at a location other than the road (including the ground).

[0048] The ground-side communication device 71 is configured to be able to communicate with the server 1 and the vehicle 3. In the first embodiment, the ground-side communication device 71 accesses the wireless base station 7 (see FIG. 1 ) connected to the network 6 via a gateway (not shown) or the like. Figure 1 ), thereby connecting to the network 6 via the wireless base station 7. As a result, wireless communication is performed between the ground-side communication device 71 and the server 1, and, for example, various types of information required to perform contactless power supply to the vehicle 3 are exchanged.

[0049] In addition, the ground-side communication device 71 performs wireless communication directly with the vehicle-side communication device 72 installed on each vehicle 3 by using a predetermined wireless communication line, and receives a proximity signal transmitted from the vehicle-side communication device 72. The proximity signal is a signal for notifying that the vehicle 3 is approaching the ground power supply device 2, and is a signal that prompts the ground power supply device 2 that has received the proximity signal via the ground-side communication device 71 to prepare to transmit power.

[0050] The power source 21 supplies power to the power transmission device 4. The power source 21 is, for example, a commercial AC power source that supplies single-phase AC power. The power source 21 may be another AC power source that supplies three-phase AC power, or may be a DC power source such as a fuel cell.

[0051] The power transmission device 4 transmits the power supplied from the power source 21 to the vehicle 3. The power transmission device 4 has a power transmission side rectification circuit 41, an inverter 42, and a power transmission side resonance circuit 43. In the power transmission device 4, the AC power supplied from the power source 21 is rectified and converted into a DC current by the power transmission side rectification circuit 41, and the DC current is converted into AC power in the inverter 42, and then this AC power is supplied to the power transmission side resonance circuit 43.

[0052] The power transmission side rectifier circuit 41 is electrically connected to the power source 21 and the inverter 42. The power transmission side rectifier circuit 41 rectifies the AC power supplied from the power source 21, converts it into DC power, and supplies the DC power to the inverter 42. The power transmission side rectifier circuit 41 is, for example, an AC / DC converter.

[0053] The inverter 42 is electrically connected to the power transmission side rectification circuit 41 and the power transmission side resonance circuit 43. The inverter 42 converts the DC power supplied from the power transmission side rectification circuit 41 into AC power (high frequency power) having a frequency higher than the frequency of the AC power of the power source 21, and supplies the high frequency power to the power transmission side resonance circuit 43.

[0054] The power transmission side resonance circuit 43 has a resonator, which is composed of a coil 44 and a capacitor 45. Various parameters of the coil 44 and the capacitor 45 (the outer diameter and inner diameter of the coil 44, the number of turns of the coil 44, the capacitance of the capacitor 45, etc.) are determined so that the resonance frequency of the power transmission side resonance circuit 43 becomes a preset value. The preset value is, for example, 10kHz to 100GHz, preferably 85kHz as a frequency band for contactless power transmission defined in the SAETIR J2954 standard.

[0055] The power transmission side resonant circuit 43 is arranged at the center of the lane through which the vehicle 3 passes, so that the center of the coil 44 is located at the center of the lane. When the high frequency power supplied from the inverter 42 is applied to the power transmission side resonant circuit 43, the power transmission side resonant circuit 43 generates an AC magnetic field for power transmission. In the case where the power source 21 is a DC power source, the power transmission side rectifier circuit 41 can be omitted.

[0056] The power transmission controller 22 is, for example, a general-purpose computer, and performs various controls on the ground power supply equipment 2. For example, the power transmission controller 22 is electrically connected to the inverter 42 of the power transmission equipment 4, and controls the inverter 42, thereby controlling the power transmission of the power transmission equipment 4. In addition, the power transmission controller 22 communicates with the server 1 and the vehicle 3 via the ground-side communication device 71. The power transmission controller 22 can communicate directly with the vehicle 3 via the ground-side communication device 71, and can also communicate with the vehicle 3 indirectly from the ground-side communication device 71 via the server 1.

[0057] Figure 3 2 is a schematic configuration diagram of the power transmission controller 22 and devices connected to the power transmission controller 22 .

[0058] The power transmission controller 22 includes a communication interface 221, a storage unit 222, and a power transmission processing unit 223. The communication interface 221 is connected to the storage unit 222 and the power transmission processing unit 223 via a signal line.

[0059] The communication interface 221 has an interface circuit for connecting the power transmission controller 22 to various devices constituting the ground power supply device 2 (for example, the inverter 42, the ground-side communication device 71, the ground-side sensor 23 described below, etc.). The power transmission controller 22 communicates with the various devices constituting the ground power supply device 2 via the communication interface 221.

[0060] The storage unit 222 has a storage medium such as an HDD, an optical recording medium, and a semiconductor memory, and stores various computer programs, data, and the like for processing in the power transmission processing unit 223 .

[0061] The power transmission processing unit 223 has one or more CPUs and their peripheral circuits. The power transmission processing unit 223 executes various computer programs stored in the storage unit 222, and uniformly controls the overall actions of the ground power supply equipment 2, and is, for example, a processor. When the power transmission processing unit 223 and the power transmission controller 22 receive a proximity signal, for example, via the ground-side communication device 71, the power transmission processing unit 223 and the power transmission controller 22 control the ground power supply equipment 2 so that power can be transmitted to the vehicle 3 when the vehicle 3 passes by.

[0062] In addition, the ground-side sensor 23 is connected to the power transmission controller 22. The ground-side sensor 23 includes, for example: a power transmission device current sensor that detects the current flowing through various devices of the power transmission device 4 (specifically, the power transmission side resonance circuit 43, the inverter 42, and the power transmission side rectification circuit 41); a power transmission device voltage sensor that detects the voltage applied to the various devices of the power transmission device 4; a power transmission device temperature sensor for detecting the temperature of the various devices of the power transmission device 4; a foreign matter sensor that detects foreign matter on the road where the power transmission device 4 is embedded; and a biological sensor that detects a biological body on the road where the power transmission device 4 is embedded. The output of the ground-side sensor 23 is input to the power transmission controller 22.

[0063] Refer to Figure 2, the vehicle 3 has a vehicle-side communication device 72, a power receiving device 5, a motor 31, a battery 32, a power control unit (PCU) 33, and a vehicle controller 34. The vehicle 3 according to the first embodiment is an electric vehicle (BEV, battery electric vehicle) that uses only the battery 32 as a power source. However, the vehicle 3 may be a so-called hybrid electric vehicle (HEV or plug-in hybrid electric vehicle (PHEV)) having a power source such as an internal combustion engine in addition to the battery 32, and the type is not particularly limited.

[0064] The vehicle-side communication device 72 is configured to be able to communicate with the server 1 and the ground power supply equipment 2. In the first embodiment, the vehicle communication device accesses the wireless base station 7 (see FIG. 1 ) connected to the network 6 via a gateway (not shown) or the like. Figure 1 ), thereby connecting to the network 6 via the wireless base station 7. As a result, wireless communication is performed between the vehicle-side communication device 72 and the server 1, and, for example, various information required for receiving contactless power supply from the ground power supply equipment 2 is exchanged. At this time, information is exchanged between the vehicle 3 and the ground power supply equipment 2 via the server 1.

[0065] Furthermore, the vehicle-side communication device 72 directly communicates with the ground-side communication device 71 of each ground power supply equipment 2 by using a predetermined wireless communication line, and transmits the above-mentioned proximity signal to each ground power supply equipment 2 .

[0066] The motor 31 is, for example, an AC synchronous motor, and functions as a motor and a generator. In the case where the motor 31 functions as a motor, the motor 31 is driven by using the power stored in the battery 32 as a power source. The output of the motor 31 is transmitted to the wheels 30 via the speed reducer and the axle. On the other hand, when the vehicle 3 decelerates, the motor 31 is driven by the rotation of the wheels 30, and the motor 31 functions as a generator to generate regenerative power.

[0067] The battery 32 is a rechargeable secondary battery, for example, composed of a lithium-ion battery, a nickel-metal hydride battery, etc. The battery 32 stores the power required for the vehicle 3 to travel (for example, the driving force of the motor 31). When the power received by the power receiving device 5 is supplied from the power transmission device 4, the battery 32 is charged. In addition, when the regenerative power generated by the motor 31 is supplied to the battery 32, the battery 32 is charged. When the battery 32 is charged, the charging rate (SOC: state of charge) of the battery 32 is restored. The battery 32 can be charged by an external power source other than the ground power supply device 2 via a charging port provided in the vehicle 3.

[0068] The PCU 33 is electrically connected to the battery 32 and the motor 31. The PCU 33 has an inverter, a boost converter, and a DC / DC converter. The inverter converts the DC power supplied by the battery 32 into AC power, and supplies the AC power to the motor 31. On the other hand, the inverter converts the AC power (regenerative power) generated by the motor 31 into DC power, and supplies the DC power to the battery 32. When the power stored in the battery 32 is supplied to the motor 31, the boost converter boosts the voltage of the battery 32 as needed. When the power stored in the battery 32 is supplied to electronic devices such as headlights, the DC / DC converter steps down the voltage of the battery 32.

[0069] The power receiving device 5 receives power from the power transmitting device 4 and supplies the received power to the battery 32. The power receiving device 5 has a power receiving side resonance circuit 51, a power receiving side rectification circuit 54, and a charging circuit 55.

[0070] The power receiving side resonance circuit 51 is arranged at the bottom of the vehicle 3 so that the distance to the road surface becomes short. The power receiving side resonance circuit 51 has the same configuration as the power transmitting side resonance circuit 43, and has a resonator composed of a coil 52 and a capacitor 53. Various parameters of the coil 52 and the capacitor 53 (the outer diameter and inner diameter of the coil 52, the number of turns of the coil 52, the capacitance of the capacitor 53, etc.) are determined so that the resonance frequency of the power receiving side resonance circuit 51 matches the resonance frequency of the power transmitting side resonance circuit 43. If the deviation amount of the resonance frequency of the power receiving side resonance circuit 51 from the resonance frequency of the power transmitting side resonance circuit 43 is small, for example, if the resonance frequency of the power receiving side resonance circuit 51 is within the range of ±20% of the resonance frequency of the power transmitting side resonance circuit 43, the resonance frequency of the power receiving side resonance circuit 51 does not necessarily have to match the resonance frequency of the power transmitting side resonance circuit 43.

[0071] When the power receiving side resonance circuit 51 is opposed to the power transmitting side resonance circuit 43 while an AC magnetic field is generated by the power transmitting side resonance circuit 43, the vibration of the AC magnetic field is transmitted to the power receiving side resonance circuit 51 which resonates at the same resonance frequency as the power transmitting side resonance circuit 43. As a result, an induced current flows in the power receiving side resonance circuit 51 by electromagnetic induction, and an induced electromotive force is generated in the power receiving side resonance circuit 51 by the induced current. That is, the power transmitting side resonance circuit 43 transmits power to the power receiving side resonance circuit 51, and the power receiving side resonance circuit 51 receives power from the power transmitting side resonance circuit 43.

[0072] The power receiving side rectifying circuit 54 is electrically connected to the power receiving side resonant circuit 51 and the charging circuit 55. The power receiving side rectifying circuit 54 rectifies the AC power supplied from the power receiving side resonant circuit 51, converts it into DC power, and supplies the DC power to the charging circuit 55. The power receiving side rectifying circuit 54 is, for example, an AC / DC converter.

[0073] The charging circuit 55 is electrically connected to the power receiving side rectifying circuit 54 and the battery 32. Specifically, the charging circuit 55 is connected to the battery 32 via the relay 38. The charging circuit 55 converts the power supplied from the power receiving side rectifying circuit 54 into the voltage level of the battery 32 and supplies it to the battery 32. When the power transmitted from the power transmission device 4 is supplied to the battery 32 through the power receiving device 5, the battery 32 is charged. The charging circuit 55 is, for example, a DC / DC converter.

[0074] The vehicle controller 34 performs various controls of the vehicle 3. For example, the vehicle controller 34 is electrically connected to the charging circuit 55 of the power receiving device 5 and controls the charging circuit 55, thereby controlling the charging of the battery by the power transmitted from the power transmission device 4. In addition, the vehicle controller 34 is electrically connected to the PCU 33 and controls the PCU 33, thereby controlling the transfer of power between the battery 32 and the motor 31. In addition, the vehicle controller 34 controls the vehicle-side communication device 72.

[0075] Figure 4 is a schematic configuration diagram of the vehicle controller 34 and devices connected to the vehicle controller 34 .

[0076] The vehicle controller 34 has a communication interface 341, a storage unit 342, and a vehicle processing unit 343. The communication interface 341, the storage unit 342, and the vehicle processing unit 343 are connected to each other via a signal line.

[0077] The communication interface 341 has an interface circuit for connecting the vehicle controller 34 to an in-vehicle network conforming to a standard such as a controller area network (CAN). The vehicle controller 34 communicates with other devices via the communication interface 341 .

[0078] The storage unit 342 has a storage medium such as an HDD, an optical recording medium, a semiconductor memory, and stores various computer programs, data, and the like for processing in the vehicle processing unit 343 .

[0079] The vehicle processing unit 343 has one or more CPUs and their peripheral circuits. The vehicle processing unit 343 executes various computer programs stored in the storage unit 342, and uniformly controls the overall operation of the vehicle 3, and is, for example, a processor. For example, when the vehicle processing unit 343 and the vehicle controller 34 detect that the vehicle 3 is approaching the energized road, the vehicle processing unit 343 and the vehicle controller 34 start to transmit an approach signal via the vehicle-side communication device 72, and control the power receiving device 5 so that the vehicle 3 can receive power from the ground power supply device 2 when the vehicle 3 is traveling on the energized road.

[0080] In addition, the vehicle 3 further includes a GNSS receiver 35, a storage device 36, a plurality of vehicle-side sensors 37, and a relay 38. The GNSS receiver 35, the storage device 36, the vehicle-side sensors 37, and the relay 38 are electrically connected to the vehicle controller 34 via the in-vehicle network.

[0081] The GNSS receiver 35 detects the current position of the vehicle 3 (for example, the latitude and longitude of the vehicle 3) based on the positioning information obtained from a plurality of (for example, three or more) positioning satellites. The output of the GNSS receiver 35 - that is, the current position of the vehicle 3 detected by the GNSS receiver 35 - is transmitted to the vehicle controller 34.

[0082] The storage device 36 stores data. The storage device 36 includes, for example, an HDD, a solid-state drive (SSD), or an optical recording medium. In the first embodiment, the storage device 36 stores map information. In addition to information about roads, the map information also includes information such as the installation position information of the ground power supply device 2. The vehicle controller 34 acquires the map information from the storage device 36. The storage device 36 does not have to include map information. In this case, the vehicle controller 34 can acquire the map information from outside the vehicle 3 (for example, the server 1) via the vehicle-side communication device 72.

[0083] The vehicle-side sensors 37 detect the state of the vehicle 3. In the first embodiment, as sensors for detecting the state of the vehicle 3, the vehicle-side sensors 37 include a speed sensor for detecting the speed of the vehicle 3, a battery temperature sensor for detecting the temperature of the battery 32, a power receiving device temperature sensor for detecting the temperature of various devices of the power receiving device 5 (specifically, the power receiving side resonance circuit 51 and the power receiving side rectifying circuit 54), a battery current sensor for detecting the charging current value and the discharging current value of the battery 32, a power receiving device current sensor for detecting the current flowing through various devices of the power receiving device 5, and a power receiving device voltage sensor for detecting the voltage applied to various devices of the power receiving device 5. The output of the vehicle-side sensors 37 is input to the vehicle controller 34.

[0084] The relay 38 is arranged between the battery 32 and the power receiving device 5, and connects and disconnects the battery 32 and the power receiving device 5. When the relay 38 is connected, the power received by the power receiving device 5 is supplied to the battery 32. However, when the relay 38 is disconnected, no current flows from the power receiving device 5 to the battery 32, and therefore, the power receiving device 5 cannot basically receive power.

[0085] Incidentally, in order to steal electricity, the power receiving device 5 may be set on the ground power supply device 2 at midnight, which is often overlooked, or the power receiving device 5 may be set on the ground power supply device 2 buried in a place that is often overlooked. In addition, for example, the coating of the coil 44 of the ground power supply device 2 may be damaged, and leakage may occur from the ground power supply device 2. If theft or leakage occurs in the ground power supply device 2, it is desirable to detect it at an early stage. However, it is not practical to increase the maintenance and inspection of the ground power supply device 2 by workers in order to detect theft or leakage at an early stage. Theft of electricity also includes the supply of electricity to vehicles other than the vehicle 3.

[0086] Here, it is considered that the time-related style change (hereinafter referred to as "time-related change pattern") of the power supply amount (or power supply efficiency) of the ground power supply equipment 2 where power theft or leakage occurs is different from the time-related change pattern of the power supply amount of the ground power supply equipment 2 where power theft or leakage does not occur.

[0087] Figure 5 When multiple (in Figure 5 The illustrated example is an example of a time-dependent variation pattern of the amount of power supplied by the ground power supply equipment 2 when the vehicle 3 continuously travels on a normal ground power supply equipment 2 where power theft or leakage does not occur.

[0088] on the other hand, Fig. 6A and Figure 6B 1 is a schematic diagram showing an example of a time-dependent change pattern of the power supply amount of a ground power supply device where power theft or leakage occurs. Specifically, Fig. 6A Shows that when multiple (in Fig. 6A The example shown is an example of a time-dependent change pattern when a vehicle 3 continuously travels on a ground power supply equipment 2 where power theft or leakage occurs. Figure 6B 1 is a schematic diagram showing an example of a time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 where power theft or power leakage occurs when the vehicle 3 is not traveling.

[0089] The power supply of the ground power supply equipment 2 to the vehicle 3 is performed only when the vehicle 3 is running on the ground power supply equipment 2. Therefore, in a normal state where power theft or leakage does not occur in the ground power supply equipment 2, the power supply amount increases only when the vehicle 3 is running on the ground power supply equipment 2, and the power supply amount becomes zero (including a value that can be regarded as zero) when the vehicle 3 is not running on the ground power supply equipment 2. That is, in a normal state where power theft or leakage does not occur in the ground power supply equipment 2, the power supply is basically interrupted.

[0090] Therefore, if Figure 5 As shown, the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 in the normal state basically becomes a time-dependent variation pattern in which power supply is intermittently performed at a cycle corresponding to the vehicle speed of the vehicle 3 running on the ground power supply equipment 2.

[0091] On the contrary, when, for example, a power receiving device for stealing power is installed on the ground power supply device 2, power is considered to be continuously supplied to the power receiving device substantially without interruption. In the case of power leakage, the state is considered to be the same as when power supply is continuously performed.

[0092] Therefore, if Fig. 6A and Figure 6B As shown, the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 at the time of power theft or power leakage is basically the time-dependent variation pattern of power supply being continuously performed.

[0093] Thus, in the first embodiment, the occurrence of power theft or leakage in the ground power supply equipment 2 is detected by using the fact that the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 is different at normal time and at the time of power theft or leakage.

[0094] Specifically, in the first embodiment, if Figure 5 As shown, assuming that the period from the start of power supply to the start of the next power supply is one cycle, when the time when the power supply amount is greater than zero (predetermined amount) is equal to or greater than the predetermined time within the one cycle, it is determined that the power supply is being continuously performed, and power theft or leakage is occurring. Not limited to this determination method, when the time when the power supply amount is greater than zero (predetermined amount) is equal to or greater than the predetermined time, it can be determined that the power supply is being continuously performed, and power theft or leakage is occurring.

[0095] Figure 7 1 is a flowchart illustrating the content of the processing of the first embodiment executed between each ground power supply equipment 2 and the server 1 in order to determine whether power theft or power leakage has occurred in each power supply equipment 2 .

[0096] In step S1, the power transmission controller 22 of the ground power supply equipment 2 determines whether it is the transmission timing of the power supply information. When the predetermined time period has elapsed from the timing of the previous transmission of the power transmission information, the power transmission controller 22 of the ground power supply equipment 2 determines that it is the transmission timing of the power supply information, and continues the procedure to step S2. On the other hand, the power transmission controller 22 of the ground power supply equipment 2 ends the current processing when the predetermined time period has not elapsed from the timing of the previous transmission of the power supply information.

[0097] The power supply information includes, for example, ID information set for each ground power supply equipment 2 , pattern information about a time-dependent change pattern of the power supply amount of the ground power supply equipment 2 within a predetermined period of time, and installation position information about the installation position of the ground power supply equipment 2 .

[0098] In step S2 , the power transmission controller 22 of the ground power supply equipment 2 transmits power supply information to the server 1 .

[0099] In step S3, based on the pattern information in the received power supply information, the server 1 determines whether power theft or leakage occurs in the ground power supply equipment 2 that has transmitted the power supply information (i.e., the ground power supply equipment 2 that transmits the power supply information in step S2, hereinafter referred to as "transmission source ground power supply equipment 2" when necessary).

[0100] In the first embodiment, when the server 1 can determine that power supply is continuously performed based on the time-related change pattern of the transmission source ground power supply device 2 (in other words, when it can be determined that power supply is performed non-periodically), it is determined that power theft or leakage occurs in the ground power supply device 2. Specifically, assuming that one cycle is from the start of power supply to the start of the next power supply, when the time when the power supply amount is greater than a predetermined amount (zero or a value that can be regarded as zero) is equal to or greater than the predetermined time within the one cycle, the server 1 determines that power supply is continuously performed and power theft or leakage is occurring.

[0101] It is desirable that the predetermined time can be changed based on at least one of the degree of congestion and the degree of traffic congestion of the road where the transmission source ground power supply equipment 2 is installed, for example. Figure 8 and Fig. 9 Describe the reasons.

[0102] Figure 8 1 is a schematic diagram showing an example of a time-dependent change pattern when power theft or leakage does not occur in the ground power supply equipment 2 and the congestion level of the road where the ground power supply equipment 2 is installed is high.

[0103] When the congestion level of the road where the ground power supply equipment 2 is installed is high, that is, when the number of vehicles 3 passing through the road per predetermined time is large, the inter-vehicle distance between vehicles may be shortened. As a result, the interval from the end of power supply to the start of the next power supply becomes shorter, and the end timing and start timing of power supply become unclear, such as Figure 8 As shown, the time-dependent change pattern causes power to be continuously supplied even if power theft or leakage does not occur in the ground power supply equipment 2, and it may be difficult to determine whether power supply is performed continuously or intermittently.

[0104] Therefore, it is preferable to determine whether power theft or leakage occurs in the ground power supply equipment 2 in consideration of the degree of congestion of the road on which the ground power supply equipment 2 is installed. For example, when the degree of congestion of the road is high, the predetermined time may be longer than when the degree of congestion of the road is low. As a result, when the distance between vehicles becomes shorter and the power supply becomes continuous, it is possible to suppress the determination error that power theft or leakage is occurring.

[0105] Fig. 9 1 is a schematic diagram showing an example of a time-dependent change pattern when power theft or leakage does not occur in the ground power supply equipment 2 and the traffic congestion level of the road where the ground power supply equipment 2 is installed is high.

[0106] like Fig. 9 As shown, the higher the degree of traffic congestion of the road where the ground power supply equipment 2 is installed, that is, the slower the driving speed of the vehicle 3 through the road, the longer it takes for the vehicle 3 to pass through the ground power supply equipment 2, and therefore, the power supply time also becomes longer. Therefore, even if theft or leakage of electricity does not occur in the ground power supply equipment 2, there is a possibility that an error in determining that power is continuously supplied may occur.

[0107] Therefore, it is preferable to determine whether power theft or leakage occurs in the ground power supply equipment 2 in consideration of the degree of traffic congestion of the road on which the ground power supply equipment 2 is installed. For example, when the degree of traffic congestion of the road is high, the predetermined time may be longer than when the degree of traffic congestion of the road is low. As a result, when power supply becomes continuous due to traffic congestion, it is possible to suppress the determination error that power theft or leakage is occurring.

[0108] As for the degree of congestion and traffic jam of the road where the ground power supply equipment 2 is installed, the actual degree of congestion and traffic jam can be obtained from, for example, an external road traffic information center. In addition, when such information cannot be obtained in real time, for example, the current degree of congestion and traffic jam can be estimated based on the degree of congestion and traffic jam in the same time interval in the past.

[0109] Refer to Figure 7In step S4, the server 1 transmits a power supply prohibition signal to the transmission source ground power supply device 2. At this time, using the location information of the transmission source ground power supply device 2, the occurrence of power theft or leakage in the transmission source ground power supply device 2 can be notified to the external relevant agency (for example, the maintenance company of the ground power supply device 2 or a public agency such as the public security bureau).

[0110] In step S5 , when the power transmission controller 22 of the ground power supply device 2 receives the power supply prohibition signal, power supply to the vehicle 3 is prohibited, for example, by completely cutting off the power supplied from the power source 21 to the power transmission device 4 .

[0111] The server 1 as the abnormality detection device according to the above-described first embodiment includes a server processing unit 13 (processing unit) and a server communication unit 11 (communication unit) capable of communicating with the ground power supply device 2 that transmits power to the vehicle 3 in a contactless manner. Then, the server processing unit 13 is configured to detect power theft or leakage in the ground power supply device 2 based on the time-dependent change pattern, that is, the time-dependent change pattern of the power supply amount of the ground power supply device 2.

[0112] Specifically, in the first embodiment, the server processing unit 13 is configured to determine that power theft or leakage occurs in the ground power supply device 2 when a determination is made that power supply is continuously performed based on the time-related change pattern of the ground power supply device 2 (in other words, when a determination is made that power supply is not performed periodically). On the other hand, the server processing unit 13 is configured to determine that power theft or leakage does not occur in the ground power supply device 2 when it is determined that power supply is intermittently performed. Specifically, in the first embodiment, the server processing unit 13 is configured to determine that power theft or leakage occurs in the ground power supply device 2 when the power supply amount of the ground power supply device 2 is greater than zero or a predetermined amount of time that can be regarded as zero for a predetermined time or more.

[0113] Therefore, by using the fact that the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 is different at normal time and at power theft or power leakage, the ground power supply equipment 2 suspected of having power theft or power leakage can be detected.

[0114] Furthermore, in the first embodiment, the server processing unit 13 is configured to, when determining whether power supply is performed continuously or periodically, consider at least one of a congestion degree and a traffic congestion degree of a road on which the ground power supply equipment 2 is installed when acquiring a time-dependent change pattern of the ground power supply equipment 2. The congestion degree is set based on the number of vehicles 3 passing through the road per predetermined time, and the traffic congestion degree is set based on the travel speed of the vehicles 3 passing through the road.

[0115] By considering the degree of congestion, when the power supply becomes continuous as the distance between vehicles becomes shorter, it is possible to suppress the determination error that the power theft or leakage is occurring. In addition, by considering the degree of traffic congestion, when the power supply time to the vehicle 3 becomes longer due to traffic congestion and the power supply becomes continuous, it is possible to suppress the determination error that the power theft or leakage is occurring.

[0116] Furthermore, in the first embodiment, the server processing unit 13 is configured such that when the server processing unit 13 determines that power theft or power leakage is occurring in the ground power supply equipment 2, the server processing unit 13 instructs the ground power supply equipment 2 to prohibit power supply via the server communication unit 11. This makes it possible to prevent power theft or power leakage following the prohibition instruction.

[0117] In addition, the server communication unit 11 is configured to be able to communicate with an external related organization. The server processing unit 13 is configured so that when the server processing unit 13 determines that power theft or power leakage is occurring in the ground power supply equipment 2, the server processing unit 13 notifies the external related organization via the server communication unit 11 that power theft or power leakage is occurring in the ground power supply equipment 2. As a result, when power theft or power leakage occurs, appropriate follow-up measures can be taken.

[0118] The following describes an abnormality detection device according to a second embodiment of the present invention. The second embodiment differs from the first embodiment in the method of detecting power theft or power leakage. The difference is described below.

[0119] In the above-described first embodiment, the occurrence of power theft or leakage is detected using the fact that the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2 is substantially a continuous time-dependent variation pattern at the time of power theft or leakage.

[0120] However, for example, it is conceivable to configure the power receiving device for power theft so that the power supply can be received intermittently. In some cases, the leakage may occur intermittently.

[0121] Here, Fig.10 An example of a time-dependent change pattern of the power supply amount of each of the two ground power supply devices 2 is shown when two adjacent ground power supply devices 2 arranged continuously along a driving lane are normal (that is, when power theft or leakage does not occur in any of the ground power supply devices 2). In the following description, in order to avoid complicating the description and to help understand the present invention, in the case where it is particularly necessary to distinguish, among the two adjacent ground power supply devices 2, one ground power supply device 2 is referred to as "ground power supply device 2A", and the other ground power supply device 2 is referred to as "ground power supply device 2B".

[0122] Fig.10The time-dependent change pattern of the power supply amount when three vehicles 3 continuously travel on two ground power supply equipments 2A and 2B is shown. At this time, when the ground power supply equipments 2A, 2B are normal, the two time-dependent change patterns are almost the same mode. That is, for the ground power supply equipments 2A, 2B, the power supply amount to each vehicle 3 is basically the same, and while traveling in the section where the ground power supply equipments 2A, 2B are installed, the travel speed and the inter-vehicle distance of each vehicle 3 are considered to be basically unchanged. Therefore, the power supply cycle is basically the same.

[0123] on the other hand, FIG. 11A to FIG. 11D An example of a time-dependent change pattern of the power supply amount when the ground power supply equipment 2A is normal but power theft or power leakage occurs in the ground power supply equipment 2B is shown.

[0124] exist Fig.11A and Fig. 11B In the embodiment, as in the first embodiment, the time-dependent variation pattern of the power supply amount of the ground power supply device 2B where power theft or leakage occurs is a time-dependent variation pattern in which power supply is continuously performed. Fig. 11C and Fig.11D In the example, the time-dependent variation pattern of the power supply amount of the ground power supply equipment 2B where power theft or leakage occurs is a time-dependent variation pattern in which power supply is intermittently performed. However, when compared with the time-dependent variation pattern of the power supply amount of the adjacent normal ground power supply equipment 2A, it can be seen that compared with the normal case, Fig. 11C The power cycle is different. Fig.11D In the figure, it can be seen that the peak value of the power supply is greater than the peak value under normal conditions. In the case of power theft for the purpose of stealing electricity, the peak value of the power supply is often larger in this way.

[0125] In this way, even if the power receiving device used for power theft is configured to be able to intermittently receive power supply, it is difficult to align the power supply amount and the power supply cycle with the adjacent ground power supply device 2, and even in the case of power leakage, the power supply amount and the power supply cycle are considered to be different from those of the adjacent ground power supply device 2.

[0126] Therefore, in the second embodiment, by comparing the time-related change pattern of the power supply amount of the ground power supply device 2 which is the detection target of power theft or leakage with the time-related change pattern of the power supply amount of one or more adjacent ground power supply devices 2 arranged within a certain degree of proximity, such as two ground power supply devices 2 adjacent to each other in the front-to-back direction, it can be determined whether power theft or leakage has occurred in the ground power supply device 2 determined as the detection target.

[0127] In addition to the ground power supply equipment 2 adjacent to the ground power supply equipment 2 that is the target of detection of electricity theft or leakage, an example of the adjacent ground power supply equipment 2 arranged within a certain degree of proximity is the ground power supply equipment 2 arranged at a location where there is a high possibility that a vehicle 3 that has been traveling on the ground power supply equipment 2 that is the target of detection of electricity theft or leakage will travel, such as the ground power supply equipment 2 arranged in the same driving lane as the ground power supply equipment 2 that is the target of detection of electricity theft or leakage.

[0128] Fig.12 1 is a flowchart illustrating the content of processing according to the second embodiment performed between each ground power supply equipment 2 and the server in order to detect the occurrence of power theft or leakage in each ground power supply equipment 2. Fig.12 In the embodiment, the processing contents of steps S1, S2, S4, and S5 are the same as those of the first embodiment, so their description will be omitted here.

[0129] In step S11, the server 1 stores the received power supply information in the power supply information database of the server storage unit 12. In this way, the power supply information of each ground power supply device 2 is summarized in the server 1 and stored in the power supply information database.

[0130] In step S12, the server 1 refers to the power supply information database and identifies the ground power supply equipment 2 installed near the transmission source ground power supply equipment 2 that transmits the power supply information based on the installation location information in the power supply information received in step S3. In the second embodiment, the server 1 identifies two adjacent ground power supply equipments 2 in front and behind the transmission source ground power supply equipment 2.

[0131] In step S13, the server 1 obtains the time-related change pattern of the power supply amount of each ground power supply device 2 specified in step S12 from the power supply information database, and determines whether power theft or leakage occurs in the transmission source ground power supply device 2 by comparing these time-related change patterns with the time-related change patterns of the power supply amount of the transmission source ground power supply device 2.

[0132] The server 1 as the abnormality detection device according to the above-mentioned second embodiment includes a server processing unit 13, a server communication unit 11, and a server storage unit 12, the server communication unit 11 being able to communicate with a plurality of ground power supply devices 2 that transmit power to the vehicle 3 in a contactless manner, and the server storage unit 12 storing at least information related to the time-related change pattern of the ground power supply device 2. Then, the server processing unit 13 is configured to: detect theft or leakage of power of one ground power supply device 2 among the plurality of ground power supply devices 2 (hereinafter, the one ground power supply device is referred to as "first ground power supply device"), the detection being based on the time-related change pattern of the first ground power supply device 2 received from the one ground power supply device 2 via the server communication unit 11 and the time-related change pattern of the second ground power supply device 2 stored in the server storage unit 12. The second ground power supply device 2 may be, for example, at least one ground power supply device installed in the vicinity of the first ground power supply device 2.

[0133] In this way, by comparing the time-dependent change patterns of the ground power supply equipment 2, it is possible to accurately determine whether power theft or leakage is occurring in the ground power supply equipment 2. For example, even if the time-dependent change patterns of the ground power supply equipment 2 where power theft or leakage occurs are intermittent, it is possible to accurately determine whether power theft or leakage is occurring in the ground power supply equipment 2.

[0134] Although the first and second embodiments of the present invention are described above, the first and second embodiments are only a part of application examples of the present invention, and the technical aspects of the present invention are not intended to be limited to the specific configurations of the above embodiments.

[0135] For example, in the first and second embodiments described above, whether power theft or power leakage is occurring in the ground power supply equipment 2 is determined based on the time-dependent change pattern of the power supply amount of the ground power supply equipment 2. However, based on the time-dependent change pattern of a parameter related to the power supply amount, such as the power supply efficiency (transmission efficiency), power theft or power leakage may occur in the ground power supply equipment 2. That is, power theft or power leakage of the ground power supply equipment 2 can be detected based on the time-dependent change pattern as the time-dependent change pattern of the power supply amount of the ground power supply equipment 2 or the parameter related to the power supply amount of the ground power supply equipment 2.

[0136] Furthermore, in the first and second embodiments described above, whether power theft or leakage is occurring is determined by the server 1. However, it may be determined by the ground power supply equipment 2. For example, in the case of the second embodiment, by allowing mutual communication of pattern information between adjacent ground power supply equipments 2, time-related change patterns can be set to be comparable with each other.

[0137] In addition, in the above-mentioned first embodiment and second embodiment, after determining that electricity theft or leakage is occurring in the ground power supply device 2, it can be further determined whether electricity theft or leakage is occurring. Generally speaking, electricity theft for the purpose of stealing electricity often has a higher power supply peak value (the highest value of the power supply in one cycle of the time-related change pattern). On the other hand, in the case of leakage, the peak value of the power supply is often lower. Therefore, after determining that electricity theft or leakage is occurring in the ground power supply device 2, it can be determined whether electricity theft or leakage is occurring based on the value of the peak value within one cycle. That is, when the power supply of the ground power supply device 2 is greater than zero or a predetermined amount of time that can be regarded as zero for a predetermined time or more, when the peak value of the power supply is a predetermined value or more, it can be determined that electricity theft is occurring in the ground power supply device 2, and when the peak value of the power supply is less than the predetermined value, it can be determined that leakage is occurring in the ground power supply device 2.

Claims

1. An anomaly detection device, It is characterized in that include: Processing unit; a communication unit configured to be able to communicate with a ground power supply device that transmits power to the vehicle in a contactless manner; The processing unit is configured to: based on a time-dependent variation pattern of the power supply amount of the ground power supply device, (i) when the processing unit determines that power supply is performed continuously, or when the processing unit determines that power supply is performed non-periodically, determining power theft or power leakage in the ground power supply equipment, wherein, in determining whether the power supply is performed continuously or periodically, at least one of a congestion degree and a traffic congestion degree of a road where the ground power supply equipment is installed when the time-dependent change pattern of the ground power supply equipment is acquired is considered, or (ii) determining that power theft or leakage occurs in the ground power supply equipment when the amount of power supplied by the ground power supply equipment is greater than zero or a predetermined amount that can be regarded as zero for a predetermined time or more, wherein the predetermined time is set in consideration of at least one of a degree of congestion and a degree of traffic congestion on a road where the ground power supply equipment is installed, The time-dependent change pattern is a time-dependent change mode.

2. The abnormality detection device according to claim 1, It is characterized in that The processing unit is configured to determine that power theft or leakage does not occur in the ground power supply equipment when the processing unit determines that power supply is intermittently performed based on the time-dependent change pattern of the ground power supply equipment.

3. The abnormality detection device according to claim 1, Features: setting the congestion level based on the number of vehicles passing through the road per predetermined time; and The traffic congestion level is set based on a travel speed of vehicles passing through the road.

4. The abnormality detection device according to claim 1, It is characterized in that The processing unit is configured to determine that power theft is occurring in the ground power supply device when the power supply amount of the ground power supply device is greater than zero or a predetermined amount of time that can be regarded as zero for a predetermined time or more, and when a peak value of the power supply amount is a predetermined value or more, and the processing unit is configured to determine that power leakage is occurring in the ground power supply device when the peak value of the power supply amount is less than the predetermined value.

5. The abnormality detection device according to claim 1, It is characterized in that The processing unit is configured such that when the processing unit determines that power theft or power leakage is occurring in the ground power supply equipment, the processing unit instructs the ground power supply equipment to prohibit power supply via the communication unit.

6. The abnormality detection device according to claim 1, Features: The communication unit is configured to be able to communicate with an external related organization; and The processing unit is configured such that when the processing unit determines that power theft or power leakage is occurring in the ground power supply equipment, the processing unit notifies the external related organization via the communication unit that power theft or power leakage is occurring in the ground power supply equipment.

7. The abnormality detection device according to claim 1, It is characterized in that further comprising a storage unit configured to store at least information about time-dependent change patterns of a plurality of the ground power supply devices, In which, the processing unit is configured to: detect power theft or leakage of the first ground power supply device based on the time-related change pattern of the first ground power supply device received from the first ground power supply device which is one of the ground power supply devices via the communication unit and the time-related change pattern of the second ground power supply device stored in the storage unit.

8. The abnormality detection device according to claim 7, It is characterized in that The second ground power supply equipment is at least one ground power supply equipment installed near the first ground power supply equipment.

9. An abnormality detection method of an abnormality detection device, the abnormality detection device comprising a processing unit and a communication unit, the communication unit being configured to be able to communicate with a ground power supply device that transmits power to a vehicle in a non-contact manner, the abnormality detection method being characterized in that: include: Based on the time-dependent variation pattern of the power supply amount of the ground power supply equipment, (i) when the processing unit determines that power supply is performed continuously, or when the processing unit determines that power supply is performed non-periodically, determining power theft or power leakage in the ground power supply equipment, wherein, in determining whether the power supply is performed continuously or periodically, at least one of a congestion degree and a traffic congestion degree of a road where the ground power supply equipment is installed when the time-dependent change pattern of the ground power supply equipment is acquired is considered, or (ii) determining that power theft or leakage occurs in the ground power supply equipment when the amount of power supplied by the ground power supply equipment is greater than zero or a predetermined amount that can be regarded as zero for a predetermined time or more, wherein the predetermined time is set in consideration of at least one of a degree of congestion and a degree of traffic congestion on a road where the ground power supply equipment is installed, The time-dependent change pattern is a time-dependent change mode.

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