Imaging system for mobile object, mobile object, and computer program

Abstract

To provide an imaging system for a mobile object capable of imaging a power supply port without complication.SOLUTION: The imaging system for the mobile object has a power supply port and a power supply port protective member including an opening, covering the power supply port and being openable and closable, and is disposed on the mobile object. The imaging system has an imaging apparatus, which is disposed at a position where the power supply port can be imaged through the opening of the power supply port protective member when the power supply port protective member is opened.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an imaging system for a moving body, a moving body, a computer program, and the like. [Background technology]

[0002] In recent years, electric vehicles and plug-in hybrid vehicles have been appearing, which are powered by a power outlet and use that power to drive a motor. These vehicles have two power supply methods: high-speed power supply, which can supply power in a short time, and normal power supply, which can supply power for a long time. High-speed power supply can supply power in a short time, but requires special dedicated equipment.

[0003] With standard power supply, no special dedicated equipment is required and power can be supplied at home, but it takes a long time. With standard power supply, it can take, for example, 10 hours or more to fully supply power from an empty state. In that case, there is a risk that the situation may change during power supply.

[0004] For example, this could be caused by vandalism or snow accumulation. Vandalism could result in someone removing the power plug from the power outlet without permission, which could lead to theft of the car. Snow accumulation could result in snow accumulating around the power outlet, melting due to the slight heat generated by the power supply, and then turning into ice, which could make it impossible to close the power outlet cover. Because situations like these may occur, there is a demand for monitoring the area around the power outlet with a camera, etc. For example, Patent Document 1 describes a technology relating to the placement of the power outlet and the camera. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6065487 Summary of the Invention [Problem to be solved by the invention]

[0006] In the configuration described in Patent Document 1, a camera is installed on the cover of the power port. However, this configuration does not allow for monitoring of the power port using a camera. Meanwhile, in recent years, automobiles have been equipped with 360°C imaging systems that install multiple cameras around the vehicle to capture images of the entire vehicle and assist with parking. However, installing a dedicated camera for monitoring the power port in addition to the cameras for the 360°C imaging system would complicate the system and further increase costs.

[0007] Therefore, one of the objects of the present invention is to propose an imaging system for a moving body that can capture an image of a power feed port without making it complicated. [Means for solving the problem]

[0008] In order to solve the above problems, an imaging system for a moving object according to one aspect of the present invention comprises: An imaging system for a mobile body to be disposed on a mobile body having a power feed port and an openable / closable power feed port protection member having an opening and covering the power feed port, An imaging device is included, the imaging device is disposed at a position where it can capture an image of the power feed port through the opening of the power feed port protection member when the power feed port protection member is open. It is characterized by: [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an imaging system for a moving body that can capture an image of a power feed port without complexity. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of the configuration of a moving body 10 according to a first embodiment of the present invention. [Figure 2] 1 is a functional block diagram showing an example of the configuration of an imaging system according to a first embodiment. [Figure 3] 1(A) to 1(C) are perspective views showing examples of the external appearance of the periphery of a power supply unit 200 according to the first embodiment. [Figure 4]1A to 1D are diagrams for explaining in detail the periphery of the power supply unit 200 according to the first embodiment. [Figure 5] 10 is a flowchart showing an example of processing in the case of snowfall in the imaging method according to the first embodiment. [Figure 6] 10(A) to 10(C) are diagrams illustrating an example of a state in which normal power supply is being performed according to the first embodiment. [Figure 7] 10 is a flowchart showing an example of processing when mischief occurs in the imaging method according to the first embodiment. [Figure 8] 10(A) to 10(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to a second embodiment. [Figure 9] 10(A) to 10(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to a third embodiment. [Figure 10] 10(A) to 10(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to a fourth embodiment. [Figure 11] 10(A) and 10(B) are perspective views showing an example of the external appearance of the periphery of a power supply unit 200 according to a fifth embodiment. [Figure 12] 10(A) to 10(D) are diagrams showing examples of cross sections of the periphery of a power supply unit 200 according to a fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. In each drawing, the same members or elements are designated by the same reference numerals, and duplicate descriptions will be omitted or simplified.

[0012] <Embodiment 1> 1 is a diagram showing an example of the configuration of a moving body 10 according to a first embodiment of the present invention. The moving body 10 is, for example, a vehicle that runs on a public road, and a driver 500 rides in the moving body 10 according to this embodiment and operates the moving body 10, thereby allowing the moving body 10 to move to any location.

[0013] The mobile object 10 is an electric vehicle that has a power supply unit (described later) and can run by driving a motor with the power supplied from the power supply unit. Note that the mobile object 10 may also be a plug-in hybrid vehicle that is driven by an engine in addition to a motor, as long as it has a power outlet. The mobile object may also be a drone, a robot, or the like.

[0014] 1, a moving object 10 is equipped with an imaging device 100, which is a component of an imaging system, and the imaging device 100 captures images of at least the lower front side of the moving object 10. In this embodiment, multiple cameras (not shown) are arranged at multiple locations on the side of the moving object, forming a 360-degree imaging system. The components of the imaging system will be described in detail below.

[0015] That is, in addition to the imaging device 100, a plurality of imaging devices for a panoramic imaging system are installed on the moving body 10, and by combining the video signals from these, it is possible to monitor panoramic images.

[0016] 1 is one of the multiple cameras constituting the omnidirectional imaging system for capturing images of the entire area ahead, but cameras other than the imaging device 100 may be omitted. The imaging device 100 of this embodiment is configured as a wide-angle camera because it is necessary to capture images of the entire area ahead of the omnidirectional imaging system.

[0017] Furthermore, since the 360° photography system is used to grasp the sense of distance between the front bumper 150 and an obstacle when parking, for example, the imaging device 100 is installed near the front bumper 150. The front bumper 150 is installed at the front end of the underside of the mobile body 10 and is an impact absorbing part that cushions the impact of a collision when the mobile body 10 collides.

[0018] Reference numeral 106 denotes a field of view line indicating the edge of the field of view of the imaging device 100 in the vertical direction, and the area inside the field of view line 106 indicates the shooting range of the imaging device 100. An optical axis 105 indicates the optical axis of the lens unit of the imaging device 100. Note that the video signal captured by the imaging device 100 in the imaging system will be described later.

[0019] As shown in Figure 1, the direction of travel of the moving body 10 (+Y direction) is defined as the forward direction, the side perpendicular to the ground (+Z direction) is defined as the upside, and the left side of the direction of travel of the moving body 10 (+X direction), i.e., the direction toward the front of the paper, is defined as the left side, and the following explanation will be given accordingly.

[0020] Next, the configuration of the imaging system 1000 for the moving object 10 will be described with reference to Fig. 2. Fig. 2 is a functional block diagram showing an example configuration of the imaging system 1000 according to the first embodiment. Note that some of the functional blocks shown in Fig. 2 are realized by causing a CPU or the like serving as a computer (not shown) included in a control unit or the like of the imaging system to execute a computer program stored in a memory (not shown) serving as a storage medium.

[0021] However, some or all of these functions may be implemented by hardware. Examples of hardware that can be used include dedicated circuits (ASICs) and processors (reconfigurable processors, DSPs). Furthermore, the functional blocks shown in Figure 2 do not have to be built into the same housing, and may be configured as separate devices connected to each other via signal paths.

[0022] The imaging system 1000 includes an imaging device 100, a power supply unit 200, a signal processing device 300, a display unit 155, an operation unit 160, a battery unit 165, a drive unit 170, a wireless communication unit 175, and the like.

[0023] The imaging device 100 has a lens unit 110, an imaging element 120, and an electronic circuit board 125. The lens unit 110 is a group of lenses that form an optical subject image, and the imaging element 120 is a photoelectric conversion element such as a CMOS image sensor for converting the subject image into an electrical signal.

[0024] The imaging device may be, and includes, a LiDAR (Light Detection and Ranging) device, etc. Electronic circuit board 125 has electronic circuit components mounted thereon, and converts the electrical signal output from imaging element 120 into a predetermined video signal.

[0025] The signal processing device 300 has a control unit 310 and a memory unit 315. The control unit 310 is a control device that performs various types of video signal processing such as distortion correction and clipping, and various types of signal control. The control unit 310 has a built-in CPU and the like as a computer, and functions as control means that controls the operation of each unit of the entire imaging system based on a computer program stored in the memory unit 315 as a storage medium.

[0026] The memory unit 315 functions as a storage means for storing video signals, storing computer programs that have been loaded in advance, and storing settings operated by the operation unit 160, which will be described later.

[0027] The display unit 155 is installed, for example, in the center of an instrument panel (not shown) inside the vehicle 10, and includes a liquid crystal display or the like for displaying various information about the vehicle 10 and allowing the driver 500 to visually confirm it.

[0028] The operation unit 160 is an operating device that allows the driver or the like to change various settings of the vehicle 10. In the first embodiment, the operation unit 160 is configured with buttons, switches, rotary dials, etc. that are installed around the display unit 155. The operation unit 160 may be configured as a touch panel together with the display unit 155.

[0029] The battery section 165 is a secondary battery that stores power supplied from a normal power feed port 203 or a high-speed power feed port 202 of the power feed unit 200, which will be described later. Various components of the moving body 10 are driven and operate using the power stored in the battery section 165. The drive section 170 is a motor that causes the moving body 10 to travel or move backward.

[0030] The moving body 10 may be configured to be equipped with a fuel-driven engine in combination with a motor to drive the moving body.

[0031] The wireless communication unit 175 is a communication device for wirelessly notifying a remote operator or the like who is located away from the mobile body 10 of various information about the mobile body 10. When a notification signal is transmitted from the wireless communication unit 175, the signal is received by a mobile terminal carried by the remote operator or the like, and the remote operator or the like can check the content of the signal on the mobile terminal.

[0032] Power supply unit 200 has high-speed power supply port 202, normal power supply port 203, heater unit 207, lid opening / closing drive unit 205, power supply port lid unit 210, etc. High-speed power supply port 202 is a first power supply port that can supply high-speed power to battery unit 165 in a short time by electrically connecting a high-speed power supply plug connected to dedicated equipment that can supply high-speed power.

[0033] The normal power outlet 203 is a second power outlet that can supply power to the battery unit 165 by connecting a power plug connected to a power supply facility installed in a home, etc. Since power is supplied from a power supply facility that can be installed in a home, etc., normal power outlet 203 differs from high-speed power outlet 202 in that it may take, for example, 10 hours or more to fully charge the battery unit 165.

[0034] Power port cover 210 is a protective component for protecting normal power port 203 and high-speed power port 202 when not supplying power. Cover opening / closing drive unit 205 is a drive unit for electrically opening and closing power port cover 210. Heater unit 207 is a heat source unit for melting snow that accumulates around high-speed power port 202 and normal power port 203 to a predetermined threshold or greater while power port cover 210 is open.

[0035] Next, the configuration of the power supply unit 200 will be described in detail with reference to Figures 3(A) to 3(C). Figures 3(A) to 3(C) are perspective views showing examples of the external appearance of the peripheral part of the power supply unit 200 according to embodiment 1. Figure 3(A) is an external perspective view showing the power supply port lid 210 in a closed state.

[0036] Fig. 3(A) is an external perspective view showing the closed state of power feed port cover 210, and Fig. 3(B) is an external perspective view showing the open state of power feed port cover 210. Fig. 3(C) is an external perspective view of the open state shown in Fig. 3(B) as seen from the lower front.

[0037] 3(A), reference numeral 180 denotes an imaging device mounting portion for mounting the imaging device 100 to the moving body 10. An imaging device mounting portion front surface 181 is the front portion of the imaging device mounting portion 180, and is a so-called emblem on which the logo of the moving body 10 is written.

[0038] 3(B), when power feed port lid 210 is opened, high-speed power feed port 202 and normal power feed port 203 are exposed. Power feed port lid hinge 204 is a support member installed on power feed port lid 210. In addition, power feed port lid hinge 204 is connected to lid opening / closing drive unit 205, and power feed port lid 210 can be opened and closed by driving lid opening / closing drive unit 205.

[0039] 3(C), in this embodiment, the high speed power feed port 202 and the normal power feed port 203 are arranged side by side. In addition, the imaging device 100 is arranged above the high speed power feed port 202 and the normal power feed port 203 in order to capture images of both the high speed power feed port 202 and the normal power feed port 203.

[0040] Reference numeral 211 denotes a power feed port lid opening, which is an opening such as a rectangular cutout or hole provided in power feed port lid 210. When power feed port lid 210 is open, power feed port lid opening 211 forms an opening in front of imaging device 100 so as not to obstruct the shooting angle of view of imaging device 100, as shown in FIG.

[0041] In this way, power feed port cover 210 has power feed port cover opening 211 and functions as an openable and closable power feed port protection member that covers the power feed port, and the imaging device is positioned so that it can capture an image of light that passes through the opening of the power feed port protection member when the power feed port protection member is open. Note that imaging system 1000 functions as a mobile object imaging system that is placed on a mobile object that has a power feed port and power feed port cover 210 as a power feed port protection member.

[0042] 4(A) to 4(D) are diagrams for explaining in detail the periphery of power supply unit 200 according to embodiment 1. Fig. 4(A) is a top view of moving object 10 when power supply port lid 210 is closed, showing cross-sectional position 600 of the cross-sectional view shown in Fig. 4(B), and Fig. 4(B) is a cross-sectional view of the periphery of power supply port lid 210 when closed, as seen from cross-sectional position 600 shown in Fig. 4(A).

[0043] Fig. 4(C) is a top view of movable body 10 when power feed port cover 210 is open, showing cross-sectional position 600 of the cross-sectional view shown in Fig. 4(D), and Fig. 4(D) is a cross-sectional view of the periphery of power feed port cover 210 when open, as seen from cross-sectional position 600 shown in Fig. 4(C). Note that other internal structures of movable body 10 are not shown.

[0044] Reference numeral 212 denotes the rear end of the power feed port lid, which is the rear end of power feed port lid 210. Reference numeral 213 denotes the front end of the power feed port lid, which is the front end of power feed port lid 210. Reference numeral 214 denotes the inner wall surface of the power feed port lid, which is the surface of power feed port lid 210 that faces the inside of mobile object 10 when power feed port lid 210 is closed.

[0045] 4(B), when power feed port lid section 210 is closed, power feed port lid section 210 covers and protects normal power feed port 203 (and high-speed power feed port 202). In this state, most of the imaging range of the area inside field of view line 106 around power supply unit 200 is blocked by power feed port lid section 210, and imaging device 100 cannot capture the area around normal power feed port 203 (and high-speed power feed port 202).

[0046] Next, by rotating the power feed port lid portion 210 from the closed state shown in Figure 4(C) around the periphery of the rear end 212 of the power feed port lid portion as an axis, the power feed port lid portion 210 becomes in the open state as shown in Figure 4(D).

[0047] At this time, because the rotational movement is approximately about the periphery of feed port lid rear end 212, the amount of movement of feed port lid front end 213 is greater than that of feed port lid rear end 212. Note that the rotational movement does not have to be strictly rotational; by configuring feed port lid hinge 204 with a link mechanism or the like, the power port lid can be opened and closed with a rotational movement like an elliptical orbit.

[0048] Furthermore, imaging device 100 is installed near power feed port lid rear end 212, and power feed port lid opening 211 is provided on the side of power feed port lid rear end 212. Therefore, when power feed port lid 210 is open, most of the imaging range of the area inside field of view line 106 is not eclipsed by power feed port lid opening 211.

[0049] Therefore, when power feed port cover 210 is open, the imaging range is not obstructed by power feed port cover 210, and imaging device 100 can capture most of the imaging range of the area inside field of view line 106. In addition, the imaging range of imaging device 100 includes normal power feed port 203 and high-speed power feed port 202.

[0050] Although feed port lid opening 211 is a generally rectangular cutout, it may be a circular or oval hole, or any other similar shape. It may also be a simple gap between feed port lid rear end 212 and imaging device 100, as long as there is an opening that allows imaging device 100 to capture images of the areas around normal feed port 203 and high-speed feed port 202 when feed port lid 210 is open.

[0051] 4(D), when power feed port lid 210 is open, lens unit 110 of imaging device 100 does not protrude beyond power feed port lid inner wall surface 214. Therefore, when power is supplied, the power supply plug is unlikely to come into contact with imaging device 100, and there is no risk of damaging lens unit 110.

[0052] Next, an imaging method using the imaging system installed in the moving body 10 in the first embodiment will be described in detail with reference to the drawings. Fig. 5 is a flowchart showing an example of processing in the case of snowfall in the imaging method according to the first embodiment.

[0053] Unless otherwise specified, all operations are performed by the control unit 310. That is, the CPU or the like serving as a computer within the control unit 310 executes a computer program stored in memory, thereby sequentially performing the operations of the steps in the flowchart of Fig. 5.

[0054] 5, in step S500, when the power of the moving object 10 is turned on by the operation unit 160, the flow of FIG. 5 starts and imaging by the imaging device 100 begins. Then, in step S501, it is determined whether the drive button (not shown) for the moving object 10 on the operation unit 160 is in the OFF position.

[0055] If the drive button is ON, the moving body 10 can move and move backward, and if the drive button is OFF, the moving body 10 remains in a stopped state where it cannot move or move backward. Even if the drive button is set to the ON position during the processing of steps S502 to S512, the moving body 10 cannot move or move backward.

[0056] If it is determined in step S501 that the drive button is in the ON position, the process proceeds to step S513, and if it is determined that the drive button is in the OFF position, the process proceeds to step S502.

[0057] In step S502, it is determined whether or not the power feed port open button (not shown) of operation unit 160 has been pressed. If it is determined that the power feed port open button has been pressed, the process proceeds to step S503, and if it is not determined that the button has been pressed, the process proceeds to step S513.

[0058] In step S503, a signal is sent to lid open / close drive unit 205, and power port lid 210 is opened electrically by a motor or the like. In step S504, image recognition is performed over the entire shooting range of the video signal output from imaging device 100, and it is determined whether snow accumulation equal to or greater than a predetermined threshold has been detected in power supply unit 200. The determination of snow accumulation will be described with reference to FIG. 6.

[0059] 6(A) to 6(C) are diagrams showing an example of a state in which normal power supply is being performed according to embodiment 1. Fig. 6(A) is an external perspective view of moving body 10 showing the normal power supply state. Fig. 6(B) is a diagram showing the entire imaging range of a video signal captured by imaging device 100 in the normal power supply state. Fig. 6(C) is a diagram showing a state in which there is snow accumulation of a predetermined threshold or more on power supply unit 200, in contrast to the state shown in Fig. 6(B).

[0060] In Fig. 6(A), 401 is a normal power supply plug for normal power supply, which is connected to normal power supply port 203. When driver 500 connects normal power supply plug 401 to normal power supply port 203, power supply to the battery begins.

[0061] The normal power supply plug 401 has a driver identification sensor (not shown) and a plug lock (not shown). The driver identification sensor can identify the pre-registered driver 500 by, for example, fingerprint authentication.

[0062] The plug locking section is a locking section that prevents normal power feeding plug 401 from being removed when it is attached to normal power feed port 203, and is configured so that only pre-registered drivers 500 can remove normal power feeding plug 401 from normal power feed port 203. The effect of this will be described later.

[0063] 6(B), the video signal captured by imaging device 100 shows power port cover 210, high-speed power port 202, normal power port 203, and normal power feed plug 401. As described above, imaging device 100 is installed above and halfway between high-speed power port 202 and normal power port 203, and therefore is able to capture images of high-speed power port 202 and normal power port 203.

[0064] In FIG. 6C, 405 indicates snow that has fallen and accumulated on the power supply unit 200, and a large amount of snow has accumulated around the high-speed power supply port 202 and the normal power supply port 203 of the power supply unit 200.

[0065] If snow continues to fall and accumulate, the slight heat at the normal power supply plug 401 and the normal power supply port 203 may cause the accumulated snow 405 to melt slightly, and the melted snow 405 may freeze into ice that may stick to the power supply unit 200.

[0066] If this happens, the ice cannot be easily removed even if the driver 500 brushes off the accumulated snow 405 by hand, and there is a risk that the normal power supply plug 401 will not come off or the power port cover 210 will not close.

[0067] The state shown in FIG. 6(C) indicates a state in which, in step S504, image recognition is performed on the video signal captured by the imaging device 100 and it is determined that snow accumulation exceeding a predetermined threshold has been detected on the power supply unit 200.

[0068] If it is determined in step S504 that snow accumulation equal to or greater than the predetermined threshold has been detected, the process proceeds to step S505. On the other hand, if it is determined that snow accumulation equal to or greater than the predetermined threshold has not been detected, as in the state shown in FIG. 6(B), the process proceeds to step S506.

[0069] In step S505, heater section 207 is turned on, raising the temperature around power supply unit 200, particularly around the power feed port. That is, when heater section 207 is turned on, heater section 207 raises the temperature around power supply unit 200, particularly around the power feed port, to melt accumulated snow 405 shown in Fig. 6(C). Then, the process proceeds to step S507.

[0070] On the other hand, if the process proceeds from step S504 to step S506, the heater unit 207 is turned off. If the heater unit 207 was originally in the off state, the heater unit 207 remains in the off state.

[0071] Then, the process proceeds to step S507. This ON / OFF control of heater unit 207 is realized by control unit 310 functioning as a heater control unit. Furthermore, when the power feed port protection member is open, the heater control unit controls the heater unit to heat the periphery of the power feed port if snow accumulation equal to or greater than a predetermined threshold is detected based on a video signal captured by the imaging device.

[0072] In step S507, it is determined whether or not a power port close button (not shown) has been pressed on operation unit 160. If it is determined that the power port close button has been pressed, the process proceeds to step S508, and if it is not determined that the button has been pressed, the process returns to step S504.

[0073] In step S508, image recognition is performed based on the video signal captured by the imaging device 100, and it is determined whether the normal power supply plug 401 is unplugged. If it is determined that it is unplugged, the process proceeds to step S509, and if it is determined that it is not unplugged, the process returns to step S504.

[0074] Note that whether normal power supply plug 401 is disconnected may be detected by image recognition, or a detection switch may be provided around normal power supply plug 401 in normal power inlet 203 to detect whether normal power supply plug 401 is disconnected. Alternatively, whether normal power supply plug 401 is electrically connected to normal power inlet 203 may be electrically detected.

[0075] In step S509, similarly to step S504, image recognition is performed over the entire shooting range of the video signal from the imaging device 100, and it is determined whether snow accumulation equal to or greater than a predetermined threshold has been detected in the power supply unit 200. If it is determined that snow accumulation equal to or greater than a certain threshold has been detected, the process proceeds to step S510, and if step S509 returns No, the process proceeds to step S511.

[0076] In step S510, similarly to step S505, heater section 207 is turned on, and the process returns to step S509. That is, the processes of steps S509 and S510 are repeated until the snow on power supply unit 200 is melted by heater section 207 and step S509 returns No.

[0077] If the process proceeds to step S511, the heater unit 207 is turned off, as in step S506. If the heater unit 207 was originally in the off state, the heater unit 207 remains in the off state. Then, the process proceeds to step S512.

[0078] In step S512, the processing of steps S509 to S511 indicates that there is no snow accumulation exceeding the predetermined threshold on power supply unit 200, and power feed port lid 210 can be closed without any problems. Therefore, a signal is sent to lid opening / closing drive unit 205, power feed port lid 210 is electrically closed, and the process proceeds to step S513.

[0079] In step S513, it is determined whether the power of the moving object 10 has been turned off, and if it is determined that the power has been turned off, the process proceeds to step S514, and if it is determined that the power has not been turned off, the processes of steps S501 to S512 are repeated. In step S514, the operation flow of the moving object 10 ends.

[0080] In steps S504 and S509, image recognition is performed based on the video signal captured by the imaging device 100 to detect snow accumulation exceeding a predetermined threshold. However, a temperature acquisition unit may be installed around the power supply unit 200, and snow accumulation exceeding a predetermined threshold may be detected using at least one of the temperature detected by the temperature acquisition unit and the image recognition results.

[0081] Next, a description will be given of the processing to be performed when tampering occurs around the power supply unit 200. Fig. 7 is a flowchart showing an example of processing to be performed when tampering occurs in the imaging method according to embodiment 1. Note that, in the processing shown in Fig. 7, all operations are performed by the control unit 310 unless otherwise specified.

[0082] That is, the CPU or the like serving as a computer within control unit 310 executes a computer program stored in memory, thereby sequentially performing the operations of the steps in the flowchart of Fig. 5. Note that the processing of steps S500 to S503 is the same as the processing described in Fig. 5, and therefore a description thereof will be omitted.

[0083] Proceeding from step S503 to step S551, it is detected whether a video signal in which the entire imaging range moves in a short period of time has been generated from the video signal of the image capture device 100. The generation of a video in which the entire imaging range moves in a short period of time means that an external impact has been applied to the image capture device 100 or the normal power feed port 203. In other words, there is a possibility that someone has performed a prank by applying an impact.

[0084] As described above, only pre-registered drivers 500 are allowed to remove normal power supply plug 401 from normal power supply port 203. There is a possibility that someone other than pre-registered drivers 500 may have tampered with normal power supply plug 401 by forcibly removing it, causing an impact.

[0085] In step S551, an impact may be detected by installing an impact detection sensor (acceleration sensor) that can detect acceleration around power supply unit 200. Here, step S551 functions as an impact detection step (impact detection unit) that detects an impact based on a video signal from imaging device 100 or based on the output of the impact detection sensor.

[0086] In step S551, if a video signal showing movement of the entire shooting range in a short period of time is detected, the process proceeds to step S552; if not, the process proceeds to step S554. When proceeding to step S552, moving image recording starts. That is, storage of the video signal captured by the imaging device 100 begins in memory unit 315. That is, the video signal is stored under a predetermined file name (including time information as an attribute), for example.

[0087] In step S552, if the imaging device 100 has a so-called PREREC function (pre-recording function) that stores the video signal captured by the imaging device 100 for several seconds, the video signal captured several seconds before the video signal in which the entire imaging range moves in a short period of time is detected is stored in the memory unit 315.

[0088] Therefore, in this case, the video signal from a few seconds before detection to a few seconds after detection may be stored in memory unit 315 with, for example, a predetermined file name (including time information as an attribute). Once storage of the video signal in memory unit 315 has started, the process proceeds to step S553.

[0089] Here, step S552 functions as an imaging control step (imaging control unit) that stores the video signal captured by the imaging device in the memory unit if the impact detection unit detects an impact when the power supply port protection member is open. The storage destination may be a memory unit of a server or the like external to the imaging system 1000.

[0090] In step S553, an alert (warning) is transmitted from the wireless communication unit 175 to the portable terminal carried by the remote operator, etc. As a result, a message such as "Warning: Impact Occurred" is displayed on the portable terminal carried by the remote operator, etc., notifying the remote operator, etc. that an impact has occurred to the imaging device 100 or the power supply unit 200.

[0091] At this time, the video signal recorded in step S552 may be transmitted to a portable terminal operated by a remote operator, etc. After the process of step S553, the process proceeds to step S554.

[0092] In step S554, it is determined whether the power port close button has been pressed, similar to step S507 described in Fig. 5. If it is determined that the button has been pressed, the process proceeds to step S555, and if it is not determined that the button has been pressed, the process proceeds to step S513.

[0093] In addition, in step S554, if the processing is performed after a video signal in which the entire shooting range moves in a short period of time is detected, processing may be added such that pressing the power port close button is enabled by inputting a pre-set PIN number using the operation unit 160.

[0094] In step S555, it is determined whether normal power supply plug 401 is disconnected, similar to step S508 described in Fig. 5. If it is determined that it is disconnected, the process proceeds to step S556, and if it is determined that it is not disconnected, the process returns to step S551.

[0095] 5, in step S556, a signal is sent to cover open / close drive unit 205, and power port cover unit 210 is electrically closed. Then, the process proceeds to step S557. In step S557, the video recording started in step S552 is stopped. That is, the operation of storing the video signal in memory unit 315 under a predetermined file name is stopped.

[0096] The video signal stored in the memory unit 315 can be displayed on the display unit 155 by operating the operation unit 160, so that the driver 500 or the like can check it later. Alternatively, the video signal can be displayed on the display unit of an information terminal by operating a mobile terminal carried by a remote operator or the like, so that the remote operator or the like can check it.

[0097] The processing of steps S513 to S514 is the same as the processing described in Fig. 5, and therefore description thereof will be omitted. Note that, in the first embodiment, the processing of power supply via the normal power supply port 203, which has a longer power supply time than the high speed power supply port 202, has been mainly described, but similar processing is also performed in the case of power supply via the high speed power supply port 202.

[0098] <Embodiment 2> In the first embodiment, when power feed port lid section 210 is open, imaging device 100 is installed behind power feed port lid inner wall surface 214, so that lens section 110 can be protected during power supply. However, if a requirement arises, such as making power feed port lid opening 211 larger, this alone may not be sufficient to protect lens section 110.

[0099] If it is desired to provide more protection to the lens unit 110 than in embodiment 1, the configuration shown in embodiment 2 may be used, and this configuration will be described in detail with reference to the drawings. Note that the same reference numerals are used for the same components as in embodiment 1, and the description thereof will be omitted.

[0100] 8(A) to 8(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to embodiment 2. Fig. 8(A) is an external perspective view of the moving body 10 in a normal power supply state. Fig. 8(B) is a top view of the moving body 10 in a normal power supply state, showing a cross-sectional position 600 of the cross-sectional view shown in Fig. 8(C). Fig. 8(C) is a cross-sectional view of the periphery of the power supply port cover 210 as seen from the cross-sectional position 600 shown in Fig. 8(B).

[0101] Reference numeral 220 denotes an imaging device protection section installed on power feed port cover section 210, and is intended to protect lens section 110 of imaging device 100. Imaging device protection section 220 is made of a flat, transparent member that transmits light. Thus, in this embodiment, power feed port cover opening 211 as an opening has a protection section that transmits light captured by the imaging device to protect the lens section of the imaging device.

[0102] 8(C), the imaging device 100 can capture an image of the areas around the high-speed power feed port 202 and the normal power feed port 203 of the power feeding unit 200 via the imaging device protection unit 220. Furthermore, because the imaging device protection unit 220 is located in the shooting direction of the imaging device 100, it is possible to further protect the lens unit 110 of the imaging device 100 when feeding power.

[0103] <Embodiment 3> In the first embodiment, as shown in Fig. 6(B), part of the power feed port cover 210 is within the imaging range of the imaging device 100. In other words, there is a range that cannot be captured because it is blocked by the power feed port cover 210. This is improved in the third embodiment, and its configuration will be described in detail using the drawings. Note that the same reference numerals are used for parts equivalent to those in the first and second embodiments, and their description will be omitted.

[0104] 9(A) to 9(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to a third embodiment. Fig. 9(A) is an external perspective view of a moving object 10 illustrating a state in which normal power supply is being performed. Fig. 9(B) is a top view of the moving object 10 in a normal power supply state, illustrating a cross-sectional position 600 of the cross-sectional view shown in Fig. 9(C). Fig. 9(C) is a cross-sectional view of the periphery of a power supply port cover 210 as seen from the cross-sectional position 600 shown in Fig. 9(B).

[0105] 9(C), when power feed port lid portion 210 transitions from the closed state to the open state, lens portion 110 of imaging device 100 enters the opening of power feed port lid opening 211 and protrudes forward beyond power feed port lid inner wall surface 214. In other words, the imaging device is positioned so that it enters power feed port lid opening 211 as an opening when power feed port lid portion 210 as a power feed port protective member is open.

[0106] Because of this configuration, as shown in Figure 9(C), the shooting range of the area inside the field of view line 106 is not obstructed by the power feed port lid portion 210, and no part of the power feed port lid portion 210 enters the shooting range.

[0107] Furthermore, if lens unit 110 only slightly protrudes from power feed port lid inner wall surface 214, there is little risk of damaging lens unit 110. Note that, although in this embodiment lens unit 110 protrudes forward from power feed port lid inner wall surface 214, it does not have to protrude at all. In other words, it is sufficient for lens unit 110 to simply enter power feed port lid opening 211, as long as it is possible to capture an image of the light that passes through the opening.

[0108] <Embodiment 4> In the third embodiment, the lens section 110 protrudes slightly from the inner wall surface 214 of the power supply port cover, and therefore, compared to the configuration shown in the first embodiment, the lens section 110 may be slightly damaged.

[0109] Therefore, in the fourth embodiment, the configuration of the third embodiment is configured to further improve the protection performance of the lens unit 110 of the imaging device 100. Note that the same components as those in the first to third embodiments are designated by the same reference numerals and will not be described again.

[0110] Figures 10(A) to 10(C) are diagrams illustrating an example of the configuration of a power supply unit 200 according to embodiment 4. Figure 10(A) is an external perspective view of the moving object 10 illustrating a state in which normal power supply is being performed, and Figure 10(B) is a top view of the moving object 10 in the normal power supply state, illustrating a cross-sectional position 600 of the cross-sectional view shown in Figure 10(C). Figure 10(C) is a cross-sectional view of the periphery of the power supply port cover 210 as seen from the cross-sectional position 600 shown in Figure 10(B).

[0111] Imaging device curved surface protection section 225 is a protection section that is installed on power feed port cover section 210 and protects lens section 110 of imaging device 100, and is made of a transparent material. Therefore, even if imaging device curved surface protection section 225 is in the shooting direction of imaging device 100, imaging device 100 can still shoot an image of the areas around high-speed power feed port 202 and normal power feed port 203 of power feeding unit 200.

[0112] 10(C), lens unit 110 of image capture device 100 passes through power feed port lid opening 211 and protrudes slightly from power feed port lid inner wall surface 214. Therefore, c has a protruding curved shape in accordance with the protrusion of lens unit 110. Note that the shape of the curved surface of image capture device curved surface protection unit 225 is preferably a curved surface that does not optically affect image capture device 100.

[0113] With the above-described configuration, the imaging device 100 can capture images of the areas around the high-speed power feed port 202 and the normal power feed port 203 of the power feeding unit 200 without the imaging range being obstructed by the power feed port cover 210. In addition, the lens unit 110 of the imaging device 100 can be sufficiently protected when power is being fed.

[0114] <Embodiment 5> In the first to fourth embodiments, the configuration is aimed at protecting the lens unit 110 of the imaging device 100 mainly during power supply. On the other hand, in the fifth embodiment, the configuration is designed to protect the lens unit 110 of the imaging device 100 from flying objects and the like while the vehicle is traveling, that is, when the power supply port cover 210 is closed. Note that the same components as those in the first to fourth embodiments are designated by the same reference numerals and will not be described again.

[0115] 11(A) and 11(B) are perspective views showing an example of the external appearance of the periphery of power supply unit 200 according to embodiment 5. Fig. 11(A) is an external perspective view of power supply port lid 210 in a closed state, and Fig. 11(B) is an external perspective view of power supply port lid 210 in an open state.

[0116] 12(A) to 12(D) are diagrams showing examples of cross sections of the periphery of the power supply unit 200 according to embodiment 5. Fig. 12(A) is a top view of the moving object 10 when the power supply port lid 210 is closed, showing the cross-sectional position 600 of the cross-sectional view shown in Fig. 12(B).

[0117] Figure 12(B) is a cross-sectional view of the periphery of power supply unit 200 when power feed port cover 210 is closed, as viewed from cross-sectional position 600 shown in Figure 12(A). Figure 12(C) is a top view of mobile object 10 when power feed port cover 210 is open, showing cross-sectional position 600 of the cross-sectional view shown in Figure 12(D). Figure 12(D) is a cross-sectional view of the periphery of power supply unit 200 when power feed port cover 210 is open, as viewed from cross-sectional position 600 shown in Figure 12(C).

[0118] 11 and 12, the closed image capture device protection part 230 is a protection part that is installed in the power feed port cover part 210 and protects the lens part 110 of the image capture device 100 when the power feed port cover part 210 is closed. The closed image capture device protection part 230 is made of a transparent material.

[0119] Therefore, as shown in Figures 11(A) and 12(B), when the power feed port cover section 210 is closed, the imaging device 100 can capture an image in front of the front bumper 150 through the closed-state imaging device protection section 230.

[0120] 12(B), when power feed port lid 210 is closed, lens unit 110 of imaging device 100 is configured to protrude forward and outward from power feed port lid 210. Also, closed-state imaging device protection unit 230 has a curved surface so as to match the protrusion of lens unit 110 when power feed port lid 210 is closed. Note that the shape of the curved surface of closed-state imaging device protection unit 230 is desirably a curved surface that does not optically affect imaging device 100.

[0121] With the above configuration, even when power port lid 210 is closed, that is, even when the vehicle is running, imaging device 100 can capture an image of the area around front bumper 150 and lens unit 110 can be sufficiently protected.

[0122] Also, as shown in Figures 12(B) and 12(D), when the power feed port lid section 210 changes from closed to open, the closed image capture device protection section 230 moves together with the power feed port lid section 210 and moves out of the shooting direction of the image capture device 100.

[0123] In the fifth embodiment, when power feed port lid section 210 is closed, most of the imaging range of the area inside field of view line 106 may pass through power feed port lid opening 211. That is, the imaging device may be disposed in a position where it can capture an image of light that passes through power feed port lid opening 211 as an opening when power feed port lid section 210 as a power feed port protection member is closed.

[0124] Furthermore, when the power feed port lid section 210 is closed, a large portion of the shooting range of the area inside the field of view line 106 passes through the power feed port lid opening 211, and an imaging device protection section 220 may be provided on the power feed port lid section 210.

[0125] Alternatively, when power feed port lid portion 210 is closed, lens portion 110 may enter power feed port lid opening 211 and protrude from power feed port lid opening 211 to the inside of power feed port lid portion 210. That is, in embodiment 5, the imaging device may be disposed in a position where it enters power feed port lid opening 211 as an opening when power feed port lid portion 210 as a power feed port protection member is closed.

[0126] Furthermore, similar to the fourth embodiment, an imaging device curved surface protection section 225 may be provided to protect lens section 110 that protrudes inside feed port lid section 210 when feed port lid section 210 is open.

[0127] Although the imaging device 100 has been described as an example of a camera that captures the entire area ahead in an all-around imaging system, any camera that is placed near a power feed port may be used as the imaging device 100. In other words, the above-described first to fifth embodiments can be applied even when the power feed port is located on the side or rear of a moving object.

[0128] Although the present invention has been described in detail above based on the preferred embodiments, the present invention is not limited to the above embodiments, and various modifications and combinations of the above embodiments are possible based on the spirit of the present invention, and are not excluded from the scope of the present invention. The present invention also includes the following combinations.

[0129] (Configuration 1) An imaging system for a mobile body that is placed on a mobile body having a power feed port and an openable and closable power feed port protection member that has an opening and covers the power feed port, the imaging system for a mobile body having an imaging device that is placed in a position where it can image the power feed port through the opening of the power feed port protection member when the power feed port protection member is open.

[0130] (Configuration 2) The imaging system for a moving body described in Configuration 1, characterized in that the imaging device is positioned in a position where it can capture light that passes through the opening when the power supply port protection member is open.

[0131] (Configuration 3) The imaging system for a moving body according to configuration 1 or 2, wherein the imaging device is disposed in a position that fits into the opening when the power supply port protection member is open.

[0132] (Configuration 4) The imaging system for a moving body according to configuration 1 or 2, characterized in that the opening has a protective portion that transmits light captured by the imaging device and protects a lens portion of the imaging device.

[0133] (Configuration 5) An imaging system for a moving body described in any one of configurations 1 to 4, characterized in that the imaging device is positioned in a position where it can capture an image of light that passes through the opening when the power supply port protection member is closed.

[0134] (Configuration 6) The imaging system for a moving body described in any one of configurations 1 to 5, characterized in that the imaging device is positioned in a position that fits into the opening when the power supply port protection member is closed.

[0135] (Configuration 7) An imaging system for a moving body described in any one of configurations 1 to 6, characterized in having a heater unit and a heater control unit that heats the area around the power feed port using the heater unit when snow accumulation equal to or greater than a predetermined threshold is detected based on a video signal captured by the imaging device when the power feed port protection member is open.

[0136] (Configuration 8) An imaging system for a moving body according to any one of configurations 1 to 7, characterized in that it has an impact detection unit and an imaging control unit that stores a video signal captured by the imaging device if the impact detection unit detects an impact when the power supply port protection member is open.

[0137] (Configuration 9) A mobile body comprising: the mobile body imaging system according to any one of configurations 1 to 8; and a battery unit that stores the power supplied from the power supply port.

[0138] (Program) A computer program for controlling each part of the imaging system for a moving body according to any one of configurations 7 to 8 or the moving body according to claim 9 by a computer.

[0139] In order to realize some or all of the control in the above-described embodiments, a computer program that realizes the functions of the above-described embodiments may be supplied to an imaging system or the like via a network or various storage media. Then, a computer (or a CPU, MPU, or the like) in the imaging system or the like may read and execute the program. In this case, the program and the storage medium storing the program constitute the present invention. [Explanation of symbols]

[0140] 10: Moving object 105: Optical axis 100: Imaging device 106: Angle of view 110: Lens section 120: Image sensor 125: Electronic circuit board 150: Front bumper 155: Display section 160:Operation unit 165: Battery section 170: Drive unit 175: Radio Communication Department 180: Imaging device mounting section 181: Front of the imaging device mounting part 200: Power supply unit 202: High-speed power supply port 203: Normal power supply port 204: Power port cover hinge 205: Lid opening / closing drive unit 207: Heater section 210: Power supply port cover 211: Power supply port cover opening 212: Rear end of power supply port cover 213: Front end of power supply port cover 214: Inner wall of power supply port cover 220: Imaging device protection unit 225: Imaging device curved surface protection unit 230: Closed imaging device protection unit 300: Signal processing device 310: Control unit 315: Memory section 401: Normal power supply plug 405: Snowfall 500: Driver 600: Cross section position

Claims

1. An imaging system for a mobile body to be disposed on a mobile body having a power feed port and an openable / closable power feed port protection member having an opening and covering the power feed port, An imaging device is included, the imaging device is disposed at a position where it can capture an image of the power feed port through the opening of the power feed port protection member when the power feed port protection member is open.

1. An imaging system for a moving object, comprising:

2. the imaging device is disposed at a position where it can capture an image of light passing through the opening when the power supply port protection member is open.

2. The imaging system for a moving body according to claim 1.

3. The imaging device is disposed at a position where it enters the opening when the power supply port protection member is open.

2. The imaging system for a moving body according to claim 1.

4. the opening has a protection portion that transmits light captured by the imaging device and protects a lens portion of the imaging device; 2. The imaging system for a moving body according to claim 1,

5. the imaging device is disposed at a position where it can capture an image of light that has passed through the opening when the power supply port protection member is closed.

2. The imaging system for a moving body according to claim 1.

6. The imaging device is disposed at a position where it enters the opening when the power supply port protection member is closed.

2. The imaging system for a moving body according to claim 1.

7. A heater section; a heater control unit that heats the periphery of the power supply port with the heater unit when snow accumulation equal to or greater than a predetermined threshold is detected based on a video signal captured by the imaging device when the power supply port protection member is open; 2. The imaging system for a moving body according to claim 1,

8. An impact detection unit; an imaging control unit that stores a video signal captured by the imaging device when the impact detection unit detects an impact when the power supply port protection member is open; 2. The imaging system for a moving body according to claim 1,

9. An imaging system for a moving body according to any one of claims 1 to 8; a battery unit that stores the power supplied from the power supply port; A moving object characterized by having:

10. A computer program for controlling each part of the imaging system for a moving body according to any one of claims 7 to 8 by a computer.

Images