JP2019093954A - Theft prevention device - Google Patents

Abstract

To accurately detect an illegal action applied to a vehicle while preventing a possibility of the erroneous detection of the illegal action to the vehicle by a first detection part even if it is determined that the vehicle is in an alert state, and the vehicle is operated according to a remote operation requirement.SOLUTION: This theft prevention device comprises, as one example: a first detection part for detecting an illegal action to a vehicle; a second detection part for detecting a state of an occupant who has boarded on the vehicle; a determination part for determining whether or not a state of the vehicle is an alert state that the occupant gets off from the vehicle; a first control part for operating the vehicle according to a remote operation requirement which is received from an external device; and a second control part for invalidating the first detection part, or lowering the detection sensitivity of the first detection part when the alert state is determined and the vehicle is operated according to the remote operation requirement, and detecting the illegal action to the vehicle by using the second detection part.SELECTED DRAWING: Figure 3

Description

  Embodiments of the present invention relate to an anti-theft device.

  In the vehicle antitheft system mounted on the vehicle, the occupant dismounted from the vehicle, such as a door lock state where the door is locked, a state where the door is closed by the courtesy switch, and a state where the drive source of the vehicle is stopped. Operates in an alert state. The vehicle antitheft system has an intrusion sensor for detecting an unauthorized entry into the vehicle, an inclination sensor for detecting an inclination of the vehicle, a vibration sensor for detecting a vibration of the vehicle, etc. . Then, in the alert state, the vehicle antitheft system makes a transition to an alarm state and sounds a horn or lights a hazard lamp to notify an abnormality around the vehicle when a fraud is detected.

Patent No. 4375453 JP, 2009-56886, A

  By the way, when operating the vehicle according to the remote operation request in the state where the vehicle has transitioned to the alert state, the remote operation in the alert state is performed by invalidating the fraud detection sensor or lowering the detection sensitivity of the fraud detection sensor. There is a technique for suppressing false detection of a fraudulent act on a vehicle when the vehicle is operated in response to a request. However, in the art, when operating the vehicle in response to the remote operation request in the alert state, the deterrent force against theft of the vehicle is limited.

  The antitheft device according to the embodiment includes, as an example, a first detection unit for detecting an illegal act on a vehicle, a second detection unit for detecting a condition of an occupant getting in the vehicle, and an occupant from the vehicle. A determination unit that determines whether or not the vehicle is in the alert state, a first control unit that operates the vehicle according to the remote operation request received from the external device, and an alert operation state is determined and the vehicle is operated according to the remote operation request In the case of causing the first control unit to invalidate the first detection unit or lower the detection sensitivity of the first detection unit, and using a second detection unit, and a second control unit for detecting fraudulent action on the vehicle. Therefore, as an example, the antitheft device according to the present embodiment determines that the vehicle is in the alert state and operates the vehicle in response to the remote operation request, the first detection unit erroneously detects the fraudulent action on the vehicle It is possible to detect fraudulently to the vehicle with high accuracy while preventing the possibility.

  In the antitheft device according to the embodiment, as an example, the second control unit invalidates the second detection unit when it is determined that the device is in the alert state and the remote operation request is not received. Therefore, the antitheft device according to the present embodiment can reduce the processing load applied to the second detection unit by detecting an illegal act on the vehicle, as an example.

  In the antitheft device according to the embodiment, as an example, the second detection unit includes at least one of a load recognition unit, an occupant state recognition unit, a three-dimensional object recognition unit, and a living body recognition unit. The load recognition unit acquires the detection result of the load applied to the seat of the vehicle, and determines the presence or absence of seating on the seat or the physical constitution of the occupant seated on the seat based on the load. The occupant state recognition unit acquires a captured image obtained by imaging the inside of the vehicle by the imaging unit, and detects the occupant based on the captured image. The three-dimensional object recognition unit is provided so as to be able to detect the distance to the three-dimensional object in the vehicle, and detects the three-dimensional shape of the three-dimensional object in the vehicle based on the detection result of the distance. The living body recognition unit detects the living body information of the occupant in the vehicle. Therefore, as an example, when the vehicle is determined to be in the alert state and the vehicle is operated according to the remote operation request, the antitheft device according to the present embodiment adds a new sensor separately from the first detection unit. Theft of the vehicle and the equipment in the vehicle can be properly prevented while suppressing the cost increase due to the

  In the antitheft device according to the embodiment, as an example, the load recognition unit is determined to be in the alert state, and when the vehicle is operated in response to the remote operation request, the load on the seat detects the occupant's intention to get off. If it is different from the state of seating on the seat stored at a time, or the load applied to the seat is compared with the physical information of the occupant seated on the seat, which was stored when the occupant's intention to get off was detected, When the difference exceeds a predetermined threshold, a fraud on the vehicle is detected. Therefore, as an example, the antitheft device of the present embodiment can detect an unauthorized intrusion into the vehicle with high accuracy regardless of the operating state of the vehicle according to the remote operation request.

  In the antitheft device according to the embodiment, for example, when the occupant state recognition unit is determined to be in the alert state and operates the vehicle in response to the remote operation request, the captured image includes an image of a person. Detect cheating on a vehicle. Therefore, as an example, the antitheft device of the present embodiment can detect an unauthorized intrusion into the vehicle with high accuracy regardless of the operating state of the vehicle according to the remote operation request.

FIG. 1 is a perspective view showing an example in which a part of a cabin of a vehicle equipped with the antitheft device according to the present embodiment is seen through. FIG. 2 is a plan view of an example of a vehicle according to the present embodiment. FIG. 3 is a block diagram showing an example of a functional configuration of the vehicle according to the present embodiment. FIG. 4 is a diagram for explaining an example of the state transition of the vehicle according to the present embodiment. FIG. 5 is a flow chart showing an example of the flow of a process of detecting a fraudulent act on a vehicle according to the present embodiment. FIG. 6 is a flowchart showing an example of the flow of a process of detecting a fraudulent act on a vehicle using the driver monitor ECU in the vehicle according to the present embodiment. FIG. 7 is a flow chart showing an example of the process of detecting a fraudulent act on the vehicle using the occupant monitor ECU in the vehicle according to the present embodiment. FIG. 8 is a flowchart showing an example of the flow of a process of detecting fraudulent acts on a vehicle using a three-dimensional object sensor in the vehicle according to the present embodiment. FIG. 9 is a flow chart showing an example of the flow of a process of detecting fraudulent acts on a vehicle using the radio wave type sensor in the vehicle according to the present embodiment. FIG. 10 is a flowchart showing an example of the process of detecting a fraudulent act on a vehicle using a seat ECU in the vehicle according to the present embodiment.

  Hereinafter, exemplary embodiments of the present invention will be disclosed. The configurations of the embodiments shown below, and the operations, results, and effects provided by the configurations are examples. The present invention can be realized by configurations other than those disclosed in the embodiments below, and can obtain at least one of various effects based on the basic configuration and derivative effects.

  The vehicle equipped with the antitheft device according to the present embodiment may be an automobile (internal combustion engine automobile) having an internal combustion engine (engine) as a drive source, or an automobile (electric automobile) having an electric motor (motor) as a drive source. Or a fuel cell vehicle or the like, or may be a vehicle (hybrid vehicle) using both of them as a driving source. In addition, the vehicle can be equipped with various transmission devices, various devices (systems, parts, etc.) necessary for driving an internal combustion engine and an electric motor. In addition, the system, number, layout, and the like of devices related to driving of the wheels in the vehicle can be set variously.

  FIG. 1 is a perspective view showing an example in which a part of a cabin of a vehicle equipped with the antitheft device according to the present embodiment is seen through. FIG. 2 is a plan view of an example of a vehicle according to the present embodiment. As shown in FIG. 1, the vehicle 1 includes a vehicle body 2, a steering unit 4, an acceleration operation unit 5, a braking operation unit 6, a transmission operation unit 7, and a monitor device 11. The vehicle body 2 has a passenger compartment 2a in which a passenger gets on. A steering unit 4, an acceleration operation unit 5, a braking operation unit 6, a shift operation unit 7 and the like are provided in the passenger compartment 2a in a state where a driver as a passenger faces the seat 2b. The steering unit 4 is, for example, a steering wheel that protrudes from the dashboard 24. The acceleration operation unit 5 is, for example, an accelerator pedal located under the driver's foot. The braking operation unit 6 is, for example, a brake pedal positioned under the driver's foot. The shift operation unit 7 is, for example, a shift lever that protrudes from the center console.

  The monitor device 11 is provided, for example, at a central portion of the dashboard 24 in the vehicle width direction (i.e., the left and right direction). The monitor device 11 may have a function such as a navigation system or an audio system, for example. The monitor device 11 includes a display device 8, an audio output device 9, and an operation input unit 10. Further, the monitor device 11 may have various operation input units such as a switch, a dial, a joystick, and a push button.

  The display device 8 is configured of an LCD (Liquid Crystal Display), an OELD (Organic Electroluminescent Display), or the like, and can display various images based on image data. The audio output device 9 is configured by a speaker or the like, and outputs various types of audio based on the audio data. The voice output device 9 may be provided at a different position other than the monitor device 11 in the passenger compartment 2a.

  The operation input unit 10 is configured by a touch panel or the like, and enables an occupant to input various information. In addition, the operation input unit 10 is provided on the display screen of the display device 8 and can transmit an image displayed on the display device 8. Thereby, the operation input unit 10 enables the occupant to visually recognize the image displayed on the display screen of the display device 8. The operation input unit 10 receives an input of various information by the occupant by detecting a touch operation of the occupant on the display screen of the display device 8.

  The vehicle 1 also includes a load sensor 21, a rear seat sensor 22, a driver monitor imaging unit 23, an occupant monitor imaging unit 25, a three-dimensional object sensor 311d, and an occupant state detection sensor 311 (see FIG. 3) described later. The radio wave type sensor 311e is provided. The load sensor 21 is provided on the side of the passenger's seat in the seat 2b, and detects a load applied to the passenger's seat. The rear seat seating sensor 22 is provided inside the rear seat among the seats 2b, and detects a load applied to the rear seat. The driver monitor imaging unit 23 is provided near the steering column in the passenger compartment 2a, and can image an occupant of the seat 2b seated on the driver's seat. The occupant monitoring imaging unit 25 is provided near the overhead console in the passenger compartment 2a, and can pick up an image of all the occupants in the passenger compartment 2a. The three-dimensional object sensor 311d is provided in the vicinity of the overhead console in the vehicle interior 2a (or at the back of the headrest of the driver's seat and the front passenger's seat, the roof portion of the vehicle interior 2a) Can be detected. The radio wave type sensor 311e is provided near the steering column in the passenger compartment 2a, and can detect reflected waves such as ultrasonic waves and infrared rays reflected by a three-dimensional object in the passenger compartment 2a.

  As shown in FIGS. 1 and 2, the vehicle 1 is a four-wheeled vehicle or the like, and has two left and right front wheels 3F and two left and right two rear wheels 3R. All or some of the four wheels 3 are steerable.

  The vehicle 1 carries a plurality of imaging units 15. In the present embodiment, the vehicle 1 mounts, for example, four imaging units 15a to 15d. The imaging unit 15 is a digital camera having an imaging element such as a charge coupled device (CCD) or a CMOS image sensor (CIS). The imaging unit 15 can image the periphery of the vehicle 1 at a predetermined frame rate. Then, the imaging unit 15 outputs a captured image obtained by imaging the surroundings of the vehicle 1. The imaging units 15 each have a wide-angle lens or a fish-eye lens, and can image, for example, a range of 140 ° to 220 ° in the horizontal direction. In addition, the optical axis of the imaging unit 15 may be set obliquely downward.

  Specifically, the imaging unit 15a is provided, for example, on the lower wall of the rear window of the door 2h of the rear hatch at the rear end 2e of the vehicle body 2. And imaging part 15a can picturize the field of the back of the vehicles 1 concerned among the circumferences of vehicles 1. The imaging unit 15 b is provided, for example, in the right side door mirror 2 g of the right end 2 f of the vehicle body 2. And imaging part 15b can picturize the field of the side of the vehicles 1 concerned among the circumferences of vehicles 1. The imaging unit 15c is provided, for example, on the front bumper, the front grille, etc. of the front end 2c of the front side of the vehicle body 2, that is, the front side of the vehicle 1. And imaging part 15c can picturize the field ahead of the vehicles 1 concerned among the circumferences of vehicles 1. As shown in FIG. The imaging unit 15d is provided, for example, on the left side of the vehicle body 2, that is, on the left side door mirror 2g of the left end 2d in the vehicle width direction. And imaging part 15d can picturize the field of the side of the vehicles 1 concerned among the circumferences of vehicles 1.

  FIG. 3 is a block diagram showing an example of a functional configuration of the vehicle according to the present embodiment. As shown in FIG. 3, the vehicle 1 includes an antenna 301, an outdoor tuner 302, a battery 303, a remote control ECU (Electronic Control Unit) 304, an air conditioner ECU 305, an engine ECU 306, a verification ECU 307, a body ECU 308, a power switch 309, and a fraud detection sensor 310. , An occupant condition detection sensor 311, an antitheft ECU 312, and an alarm device 313. The remote control ECU 304, the air conditioner ECU 305, the engine ECU 306, the collation ECU 307, the body ECU 308, the fraud detection sensor 310, the occupant state detection sensor 311, and the antitheft ECU 312 are electrically connected via the in-vehicle network 314 which is a telecommunication line. It is done. The in-vehicle network 314 is configured as a CAN (Controller Area Network) or the like.

  The antenna 301 receives radio waves of various signals relating to start of a drive source (for example, an engine, an electric motor) of the vehicle 1 and control of an on-vehicle unit and an air conditioner provided in the vehicle 1 from an external device D such as a smart key or a smartphone. Do. The outdoor tuner 302 selects a radio wave received by the antenna 301. The battery 303 is a storage battery that supplies power to various devices of the vehicle 1. The power source switch 309 is a switch that can shut off the supply of power from the battery 303 to the occupant state detection sensor 311.

  The remote control ECU 304 controls the air conditioner ECU 305, the engine ECU 306, the verification ECU 307, the body ECU 308, the occupant condition detection sensor 311, the antitheft ECU 312, etc. based on various signals received from the external device D via the antenna 301. , Various requests related to control of the vehicle 1 (for example, remote operation request requesting remote operation of the vehicle 1, operation request instructing start of the drive source of the vehicle 1, smart received from a smart key which is an example of the external device Send key information). Here, the smart key information is information received from a smart key approaching the vehicle 1 (for example, a smart key existing within a preset distance from the vehicle 1), and is information that enables identification of the smart key. is there.

  The air conditioner ECU 305 operates an air conditioner such as an air conditioner of the vehicle 1 in response to a remote operation request or the like received from the remote control ECU 304. The engine ECU 306 operates the drive source of the vehicle 1 in response to the remote operation request, the operation request, and the like received from the remote control ECU 304. The collation ECU 307 collates the smart key information received from the remote control ECU 304 with the smart key information stored in advance in the storage unit of the vehicle 1. The body ECU 308 tilts, slides or rotates the seat of the vehicle 1, steers the steering unit 4, opens or closes the door of the vehicle 1, or opens or closes the door of the vehicle 1 according to a remote operation request received from the remote control ECU 304. It controls on / off of the courtesy switch 301a, lighting of various lamps of the vehicle 1, valet parking of the vehicle 1, entry and exit from the parking area of the vehicle 1, and the like. In the present embodiment, the air conditioner ECU 305, the engine ECU 306, and the body ECU 308 function as a control unit that operates the vehicle 1 in response to a remote operation request received from the external device D by the remote operation ECU 304.

  The fraud detection sensor 310 detects a fraudulent act such as an unauthorized intrusion on the vehicle 1. In the present embodiment, the fraud detection sensor 310 includes an intrusion sensor 310c, a tilt sensor 310d, and a vibration sensor 310e.

  The intrusion sensor 310c detects an unauthorized intrusion of the vehicle 1 into the compartment 2a based on the detection result of the ultrasonic waves and radio waves reflected in the compartment 2a. The inclination sensor 310 d detects the inclination of the vehicle 1 and detects a fraudulent act on the vehicle 1 based on the detection result. The vibration sensor 310e detects the vibration of the vehicle 1, and detects a fraudulent act on the vehicle 1 based on the detection result.

  In addition, the vehicle 1 has a courtesy switch 310a and a door lock position switch 301b. The courtesy switch 310 a is provided on the door of the vehicle 1 and is a sensor that detects the opening and closing of the door, and notifies the anti-theft ECU 312 of the detection result of the opening and closing of the door. The door lock position switch 310 b is provided on the door lock of the vehicle 1, detects whether the door lock is locked or unlocked, and notifies the anti-theft ECU 312 of the detection result.

  The occupant state detection sensor 311 detects the state of the occupant getting on the vehicle 1. In the present embodiment, the occupant state detection sensor 311 includes a seat ECU 311a, a driver monitor ECU 311b, an occupant monitor ECU 311c, a three-dimensional object sensor 311d, and a radio wave type sensor 311e. In the present embodiment, the occupant state detection sensor 311 includes a seat ECU 311a, a driver monitor ECU 311b, an occupant monitor ECU 311c, a three-dimensional object sensor 311d, and a radio wave type sensor 311e. It is sufficient to have at least one of the driver monitor ECU 311b, the occupant monitor ECU 311c, the three-dimensional object sensor 311d, and the radio wave type sensor 311e.

  The seat ECU 311a acquires the detection result of the load applied to the seat 2b from the load sensor 21 and the rear seat seating sensor 22 provided on the seat 2b. Then, the seat ECU 311a functions as a load recognition unit that determines the presence or absence of seating on the seat 2b or the physique (for example, an adult, a child) of an occupant seated on the seat 2b of the vehicle 1 based on the acquired load.

  The driver monitor ECU 311b acquires a captured image obtained by imaging the interior of the passenger compartment 2a from the driver monitor imaging unit 23 provided so as to be capable of imaging the interior of the passenger compartment 2a such as the seat 2b of the vehicle 1. The driver monitor ECU 311 b functions as an occupant state recognition unit that detects an occupant of the vehicle 1 based on the acquired captured image. Specifically, the driver monitor ECU 311b functions as an occupant state recognition unit that detects the line of sight of the occupant of the vehicle 1, the direction of the face, the degree of opening of the eyebrow, the swing, the behavior of the occupant, such as a look.

  The occupant monitor ECU 311c acquires a captured image obtained by imaging the inside of the passenger compartment 2a from the occupant monitoring imaging unit 25 provided so as to be capable of imaging all the occupants in the passenger compartment 2a. The occupant monitor ECU 311 c functions as an occupant state recognition unit that detects an occupant of the vehicle 1 based on the acquired captured image. Specifically, the occupant monitor ECU 311 c determines the position and size of the head of the occupant, the presence or absence of the occupant, the physical size of the occupant, the presence or absence of a child seat installed in the rear seat, and the detachment of the seat belt based on the acquired captured image. The operation of all the occupants, such as the posture of the occupant, the position of the seat 2b, the position of the occupant, the direction of the occupant's face, alighting of the occupant, pinching of the occupant's limbs with the door or window, etc. is detected.

  The three-dimensional object sensor 311 d is provided so as to detect the distance to the three-dimensional object in the vehicle 1 and functions as a three-dimensional object recognition unit that detects the three-dimensional shape of the three-dimensional object in the vehicle 1 based on the detection result of the distance. . In the present embodiment, the three-dimensional object sensor 311d is provided so as to be able to detect a reflected wave such as an ultrasonic wave or infrared light reflected by a three-dimensional object (for example, an occupant seated in the seat 2b of the vehicle 1) in the passenger compartment 2a. Then, the three-dimensional object sensor 311d obtains a distance to the three-dimensional object in the passenger compartment 2a based on the detection result of the reflected wave, and uses the distance to determine the three-dimensional shape of the three-dimensional object (for example, the occupant's gesture, the vehicle Detecting something left behind in seat 1).

  The radio wave type sensor 311 de functions as a living body recognition unit that detects the living body information of the occupant in the vehicle 1. In the present embodiment, the radio wave type sensor 311e is provided so as to be able to detect the radio wave reflected in the cabin 2a, and based on the Doppler effect of the detected radio wave, the occupant's biological information (for example, heart rate, eye closure) To detect.

  The antitheft ECU 312 executes processing for preventing the theft of the vehicle 1. In the present embodiment, the anti-theft ECU 312 controls the fraud detection sensor 310 and the occupant state detection sensor 311 according to the state of the vehicle 1 to detect a fraud on the vehicle 1. Here, the states of the vehicle 1 include an alert state, an alert preparation state, an alert state, and an alert state. In the non-warning state, there is a passenger's intention to get into the vehicle 1. The alert preparation state is a state in which there is a passenger's intention to get off the vehicle 1. The alert state is a state in which the occupant of the vehicle 1 has no intention of getting into the vehicle 1 and the occupant is dismounted from the vehicle 1. The alarm state is a state in which an illegal act on the vehicle 1 is detected, and an alarm is issued from the alarm device 313.

  In the present embodiment, if the anti-theft ECU 312 determines that the vehicle 1 is in the alert state and operates the vehicle 1 in response to the remote operation request received by the remote operation ECU 304, does the fraud detection sensor 310 be invalidated? Alternatively, the detection sensitivity of the fraud detection sensor 310 is lowered, and the passenger state detection sensor 311 is used to detect a fraud on the vehicle 1. Thereby, when it is determined that the vehicle 1 is in the alert state and the vehicle 1 is operated in response to the remote operation request, the occupant condition detection sensor while preventing the false detection of the fraudulent act on the vehicle 1 by the fraud detection sensor 310 Since an illegal act on the vehicle 1 can be detected using 311, the illegal act on the vehicle 1 by the fraud detecting sensor 310 even if it is determined that the vehicle 1 is in the alert state and the vehicle 1 is operated in response to the remote operation request. Cheating of the vehicle 1 can be detected with high accuracy while preventing the possibility of false detection of the vehicle. In the present embodiment, the antitheft ECU 312 cancels disconnection of the occupant status detection sensor 311 from the in-vehicle network 314 by the CAN partial network, or controls the power switch 309 to supply power to the occupant status detection sensor 311. By doing this, the occupant state detection sensor 311 is made in a state where it is possible to detect a fraudulent act on the vehicle 1.

  Here, to invalidate the fraud detection sensor 310 is a state in which the fraud detection sensor 310 does not detect a fraud on the vehicle 1. Further, to lower the detection sensitivity of the fraud detection sensor 310 means to lower the sensitivity for detecting a fraudulent act on the vehicle 1 by the fraud detection sensor 310. For example, when the antitheft ECU 312 detects an injustice against the vehicle 1 using the inclination sensor 310 d, the antitheft ECU 312 raises the threshold of the inclination of the vehicle 1 which is determined to have caused the injustice against the vehicle 1. When the anti-theft ECU 312 detects an illegal act on the vehicle 1 using the vibration sensor 310 e, the anti-theft ECU 312 raises the threshold of the magnitude of the vibration of the vehicle 1 which is determined to be an illegal act on the vehicle 1.

  In the present embodiment, when it is determined that the vehicle 1 is in the alert state and the vehicle 1 is operated according to the remote operation request, the antitheft ECU 312 is the seat ECU 311a, the driver monitor ECU 311b, the occupant monitor ECU 311c, the three-dimensional object sensor 311d, In addition, at least one of the radio wave type sensors 311 e is used to detect a fraudulent act on the vehicle 1. Thus, when it is determined that the vehicle 1 is in the alert state and the vehicle 1 is operated in response to the remote operation request, the vehicle 1 is not provided with a new fraud detection sensor separately from the fraud detection sensor 310. The accuracy of detecting fraud can be improved. As a result, when the vehicle 1 is determined to be in the alert state and the vehicle 1 is operated in response to the remote operation request, the vehicle 1 and the accessories in the vehicle 1 are suppressed while suppressing the increase in cost due to the addition of a new sensor. Theft can be properly prevented.

  Further, the antitheft ECU 312 validates the fraud detection sensor 310 when it is determined that the vehicle 1 is in the alert state and has not received the remote operation request from the external device D. At that time, the antitheft ECU 312 invalidates the occupant state detection sensor 311. As a result, when it is determined that the vehicle 1 is in the alert state and the remote operation request is not received, only the fraud detection sensor 310 is used to detect cheating on the vehicle 1. The processing load applied to the occupant state detection sensor 311 can be reduced by the detection. Here, to invalidate the occupant state detection sensor 311 means to make a state in which a cheating on the vehicle 1 is not detected using the occupant state detection sensor 311. In the present embodiment, when the vehicle 1 is determined to be in the alert state and the remote operation request is not received, the antitheft ECU 312 controls the power switch 309 to cut off the supply of power to the occupant state detection sensor 311 Alternatively, the occupant state detection sensor 311 is invalidated by disconnecting the occupant state detection sensor 311 from the in-vehicle network 314 by the CAN partial network. As a result, when the vehicle 1 is determined to be in the alert state and the remote operation request is not received from the external device D, the power consumption in the vehicle 1 can be reduced because power consumption in the occupant state detection sensor 311 can be prevented. it can. Further, to make the fraud detection sensor 310 effective is to make the fraud detection sensor 310 in a state capable of detecting a fraud on the vehicle 1, and the detection sensitivity of the fraud detection sensor 310 is equal to or less than the preset detection sensitivity. If it is lowered, the detection sensitivity of the fraud detection sensor 310 is to be higher than the detection sensitivity set in advance.

  The alarm device 313 notifies the occurrence of the cheating against the vehicle 1 to the outside when the cheating against the vehicle 1 is detected. In the present embodiment, the alarm device 313 causes the vehicle 1 to tamper with the vehicle 1 by sounding the horn 313 a of the vehicle 1 or turning on the hazard lamp 313 b of the vehicle 1 when an illegal act on the vehicle 1 is detected. Informing the outside of the occurrence of the act. Alternatively, when the cheating on the vehicle 1 is detected, the alarm device 313 may notify the external device D via the antenna 301 that the cheating on the vehicle 1 is detected.

  Next, a specific functional configuration of the antitheft ECU 312 will be described. The antitheft ECU 312 includes a state transition control unit 312a, a sensitivity control unit 312b, a transition prohibition unit 312c, an occupant recognition sensor control unit 312d, and a determination unit 312e. The state transition control unit 312 a determines the state of the vehicle 1. In the present embodiment, the state transition control unit 312a functions as a determination unit that determines whether the state of the vehicle 1 is a non-alert state, an alert preparation state, an alert state, or an alert state.

  The sensitivity control unit 312b controls the detection of a fraudulent action on the vehicle 1 by the fraud detection sensor 310 according to the state of the vehicle 1 determined by the state transition control unit 312a and whether or not the remote operation request is received. . Specifically, when it is determined that the state of the vehicle 1 is the alert state and the vehicle 1 is operated in response to the remote operation request, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or the fraud detection sensor 310. Lower the detection sensitivity of fraudulent behavior against the vehicle 1 by On the other hand, when it is determined that the state of the vehicle 1 is in the alert state and the remote control ECU 304 does not receive the remote operation request, the sensitivity control unit 312 b enables the fraud detection sensor 310 and the vehicle 1 by the fraud detection sensor 310. Detect cheating against

  The occupant recognition sensor control unit 312d shifts the occupant state detection sensor 311 from the normal use mode to the security mode when the state of the vehicle 1 is determined to be in the alert state and the vehicle 1 is operated according to the remote operation request. The state detection sensor 311 is used to detect fraudulent activity on the vehicle 1. Here, the normal use mode is a mode in which the occupant state detection sensor 311 detects the state of the occupant getting on the vehicle 1.

  Further, the security mode is a mode in which the passenger state detection sensor 311 detects a fraudulent act on the vehicle 1. The occupant recognition sensor control unit 312 d detects a cheating on the vehicle 1 using the occupant state detection sensor 311 when the occupant state detection sensor 311 is shifted to the security mode. Specifically, the seat ECU 311a detects the presence or absence of seating on the seat 2b (for example, the load applied to the seat 2b in the alert preparation state) when the occupant's intention to get off the vehicle is detected (the alert preparation state), and alert preparation The physical information (for example, load) of the occupant based on the detection result of the load by the load sensor 21 and the rear seat seating sensor 22 in the state is stored in the storage unit included in the sheet ECU 311a. Thereafter, when the seat ECU 311a transitions to the security mode, the seat ECU 311a acquires the load applied to the seat 2b of the vehicle 1 detected by the load sensor 21 and the rear seat sensor 22 provided on the seat 2b. Then, when the acquired load is different from the state of the presence or absence of seating on the seat 2b in the alert preparation state, the seat ECU 311a detects a fraudulent action on the vehicle 1. Alternatively, the seat ECU 311a compares the occupant physical information (for example, load) based on the acquired load with the occupant physical information based on the detection result of the load by the load sensor 21 and the rear seat seating sensor 22 in the alert preparation state. If the difference exceeds a predetermined threshold value, a fraudulent action on the vehicle 1 is detected. Here, the predetermined threshold value is a threshold value of physical information for detecting a fraudulent act on the vehicle 1. Thereby, regardless of the operating state of the vehicle 1 corresponding to the remote operation request, an unauthorized intrusion into the vehicle 1 can be detected with high accuracy.

  The driver monitor ECU 311b acquires a captured image obtained by imaging of the driver monitor imaging unit 23 in the alert preparation state, and stores the acquired captured image in the storage unit included in the driver monitor ECU 311b. Thereafter, when the driver monitor ECU 311b transitions to the security mode, the driver monitor ECU 311b acquires a captured image obtained by imaging the inside of the passenger compartment 2a from the driver monitor imaging unit 23 provided in the passenger compartment 2a. Then, the driver monitor ECU 311b obtains a change amount (difference) of the acquired captured image based on the captured image stored in the storage unit. Here, the amount of change is, for example, the difference between the luminance value of the captured image stored in the storage unit and the luminance value of the captured image acquired from the driver monitor imaging unit 23. Then, the driver monitor ECU 311 b detects a fraudulent act on the vehicle 1 when the calculated amount of change exceeds a preset threshold. In addition, the driver monitor ECU 311b detects the state of the occupant (for example, the line of sight of the occupant, the direction of the face, the degree of opening of the eyebrow, and the look-ahead) based on the acquired captured image. Then, the driver monitor ECU 311 b detects an unauthorized action on the vehicle 1 when the condition of the occupant is detected. Thereby, regardless of the operating state of the vehicle 1 corresponding to the remote operation request, an unauthorized intrusion into the vehicle 1 can be detected with high accuracy.

  The occupant monitor ECU 311 c acquires a captured image obtained by imaging of the occupant monitoring imaging unit 25 in the alert preparation state, and stores the acquired captured image in a storage unit included in the occupant monitor ECU 311 c. Thereafter, when the occupant monitor ECU 311 c transitions to the security mode, the occupant monitor ECU 311 c acquires an imaged image obtained by imaging the interior of the passenger compartment 2 a from the occupant monitoring imaging unit 25. Then, the occupant monitor ECU 311 c obtains a change amount (difference) of the acquired captured image based on the captured image stored in the storage unit. Here, the amount of change is a difference between the luminance value of the captured image stored in the storage unit and the luminance value of the captured image acquired from the imaging unit 25 for occupant monitoring. And passenger | crew monitor ECU311c detects the fraud with respect to the vehicle 1, when the calculated | required variation | change_quantity exceeds the threshold value preset. Further, the occupant monitor ECU 311 c detects the state of all occupants (for example, the position and size of the occupant's head, the presence or absence of the occupant, the posture of the occupant, and the direction of the occupant's face) based on the acquired captured image. And passenger | crew monitor ECU311c detects the fraud with respect to the vehicle 1, when a passenger | crew's state is detected. Thereby, regardless of the operating state of the vehicle 1 corresponding to the remote operation request, an unauthorized intrusion into the vehicle 1 can be detected with high accuracy.

  The three-dimensional object sensor 311d stores the three-dimensional shape of the three-dimensional object detected in the alert preparation state in the storage unit of the three-dimensional object sensor 311d. Thereafter, when the three-dimensional object sensor 311d transitions to the security mode, the three-dimensional object sensor 311d acquires the detection result of the distance to the three-dimensional object in the vehicle 1, and based on the detection result of the distance to the three-dimensional object in the vehicle 1, The three-dimensional shape of a three-dimensional object is detected. Then, when the detected three-dimensional shape is different from the three-dimensional shape stored in the storage unit, the three-dimensional object sensor 311d detects an injustice against the vehicle 1. Thereby, regardless of the operating state of the vehicle 1 corresponding to the remote operation request, an unauthorized intrusion into the vehicle 1 can be detected with high accuracy. In addition, the radio wave type sensor 311e stores the biological information detected in the alert preparation state in the storage unit of the radio wave type sensor 311e. Thereafter, when the radio wave type sensor 311 e transitions to the security mode, it detects the biological information of the occupant present in the passenger compartment 2 a. Then, the radio wave type sensor 311 e detects an illegal act on the vehicle 1 when the detected biological information is different from the biological information stored in the storage unit. Thereby, regardless of the operating state of the vehicle 1 corresponding to the remote operation request, an unauthorized intrusion into the vehicle 1 can be detected with high accuracy. Here, the previously set biometric information is biometric information detected when the state of the vehicle 1 is in the unsuspect state.

  The transition prohibition unit 312 c maintains the current state of the vehicle 1 until the transition of the state of the vehicle 1 is detected by the state transition control unit 312 a (in other words, the transition of the state of the vehicle 1 is prohibited). The determination unit 312e controls the notification processing of the cheating on the vehicle 1 by the alarm device 313 described later based on the detection result of the cheating on the vehicle 1 by the fraud detection sensor 310 or the occupant state detection sensor 311.

  Next, an example of state transition of the vehicle 1 according to the present embodiment will be described using FIG. 4. FIG. 4 is a diagram for explaining an example of the state transition of the vehicle according to the present embodiment.

  In the state transition control unit 312a, as shown in FIG. 4, the open state of the door (hereinafter referred to as open courtesy SW) is detected by the courtesy switch 310a, and the door lock is released by the door lock position switch 310b (hereinafter referred to as door lock). When the cancellation is detected and the remote control ECU 304 detects an electric wave from the smart key via the antenna 301 (owner key detection), the occupant of the vehicle 1 is determined to take the Determined to be the indicated vigilance state.

  Further, as shown in FIG. 4, in the state transition control unit 312a, the courtesy switch 310a detects the closed state of the door (hereinafter referred to as the courtesy switch closed), and the door lock position switch 310b locks the door lock (hereinafter referred to as Locked state is detected, OFF of ignition power supply of vehicle 1 (hereinafter referred to as IG-OFF) is detected, and no driver is recognized by driver monitor ECU 311 b or passenger monitor ECU 311 c (no passenger), and owner key Is detected, it is determined that the state of the vehicle 1 is the alert preparation state in which the occupant indicates the intention to get off the vehicle 1.

  Further, as shown in FIG. 4, the state transition control unit 312a detects that the courtesy switch is closed, the locked state is detected, the IG-OFF is detected, and the remote control ECU 304 detects the radio wave from the smart key. When it is not present (owner key non-detection), it is determined that the state of the vehicle 1 is the alert state in which the occupant has alighted from the vehicle 1. In addition, as shown in FIG. 4, the state transition control unit 312 a warns the state of the vehicle 1 when an unauthorized action on the vehicle 1 is detected by the fraud detection sensor 310 or the occupant state detection sensor 311 in the alert state. The device 313 makes a transition to an alarm state for notifying the vehicle 1 of fraudulent activity.

  In addition, as shown in FIG. 4, after transitioning to the alarm state, the state transition control unit 312a continues the time during which the fraud detection sensor 310 or the occupant status detection sensor 311 does not detect cheating on the vehicle 1 for a predetermined time. If timed out, the state of the vehicle 1 is returned to the alert state again. Furthermore, as shown in FIG. 4, after transitioning to the alarm state, the state transition control unit 312a detects that the courtesy SW is open, door unlocking is detected, and the owner key is detected, the state of the vehicle 1 Transition to an alert state. Alternatively, as shown in FIG. 4, after transitioning to the alarm state, the state transition control unit 312a instructs the cancellation of the alarm state from the external device D by the door lock release by the normal key or the remote control ECU 304 When the request is received, the state of the vehicle 1 is transitioned to the alert state.

  Next, with reference to FIG. 5, an example of the flow of the fraud detection process for the vehicle 1 according to the present embodiment will be described. FIG. 5 is a flow chart showing an example of the flow of a process of detecting a fraudulent act on a vehicle according to the present embodiment.

  The state transition control unit 312a determines whether the state of the vehicle 1 is the alert state (step S501). When it is determined that the state of the vehicle 1 is not the alert state (step S501: No), the sensitivity control unit 312b and the occupant recognition sensor control unit 312d control the fraud detection sensor 310 and the occupant condition detection sensor 311 to control the vehicle 1 Do not perform fraud detection processing.

  On the other hand, when it is determined that the state of the vehicle 1 is the alert state (step S501: Yes), the occupant recognition sensor control unit 312d determines whether the remote control ECU 304 receives the remote operation request (step S502). . When it is determined that the remote operation request has not been received by the remote control ECU 304 (Step S502: No), the sensitivity control unit 312b enables the fraud detection sensor 310 and causes the fraud detection sensor 310 to cheat the vehicle 1 It detects (step S508). At this time, the occupant recognition sensor control unit 312d deactivates the occupant state detection sensor 311 or sets the occupant state detection sensor 311 in the normal use mode (step S508). When disabling the occupant state detection sensor 311, the occupant recognition sensor control unit 312d controls the power supply SW 309 to shut off the supply of power to the occupant state detection sensor 311, or the occupant state detection sensor 311 by the CAN partial network. Is disconnected from the in-vehicle network 314, and the occupant state detection sensor 311 such as the seat ECU 311a, the driver monitor ECU 311b, the occupant monitor ECU 311c, the three-dimensional object sensor 311d, and the radio wave type sensor 311d is put to sleep.

  On the other hand, when it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the occupant state detection sensor 311 to the security mode (step S503). At that time, the occupant recognition sensor control unit 312d cancels the disconnection of the occupant state detection sensor 311 from the in-vehicle network 314 by the CAN partial network, or controls the power switch 309 to supply power to the occupant state detection sensor 311. Supply. As a result, the occupant recognition sensor control unit 312d sets the occupant state detection sensor 311 to a state in which it is possible to detect a fraudulent act on the vehicle 1. Further, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310 (step S 503).

  Thereafter, the sensitivity control unit 312 b and the occupant recognition sensor control unit 312 d determine whether or not the fraud detection sensor 310 or the occupant state detection sensor 311 detects a fraudulent act on the vehicle 1 (step S 504). When the fraud detection sensor 310 or the occupant state detection sensor 311 detects an unauthorized action on the vehicle 1 (step S504: Yes), the state transition control unit 312a causes the vehicle 1 to transition to the alarm state (step S505). When the vehicle 1 transitions to the alarm state, the determination unit 312e controls the alarm device 313 to sound the horn 313a of the vehicle 1, turn on the hazard lamp 313b of the vehicle 1, or cheating the vehicle 1. Inform the outside that a was detected.

  If neither the fraud detection sensor 310 nor the occupant state detection sensor 311 detects a cheating on the vehicle 1 (step S504: No), the air conditioner ECU 305, the engine ECU 306, and the body ECU 306 respond to the received remote operation request. Then, the vehicle 1 is operated (step S506). The occupant recognition sensor control unit 312d determines whether the vehicle 1 is in remote operation while the vehicle 1 is in remote operation in response to the remote operation request (step S507). If it is determined that the vehicle 1 is in remote operation (step S507: Yes), the sensitivity control unit 312b and the occupant recognition sensor control unit 312d return to step S504, and the vehicle 1 is detected by the fraud detection sensor 310 or the occupant condition detection sensor 311. Detect cheating against

  When it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b enables the fraud detection sensor 310 to detect fraudulent action on the vehicle 1 by the fraud detection sensor 310 (step S508). ). At this time, the occupant recognition sensor control unit 312d deactivates the occupant state detection sensor 311 or sets the occupant state detection sensor 311 in the normal use mode (step S508).

  Next, with reference to FIG. 6, an example of a process of detecting a fraudulent action on the vehicle 1 using the driver monitor ECU 311b in the vehicle 1 according to the present embodiment will be described. FIG. 6 is a flowchart showing an example of the flow of a process of detecting a fraudulent act on a vehicle using the driver monitor ECU in the vehicle according to the present embodiment. In the following description, descriptions of portions similar to the processing illustrated in FIG. 5 will be omitted.

  If it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the driver monitor ECU 311b to the security mode (step S601). At that time, the occupant recognition sensor control unit 312d cancels the disconnection of the driver monitor ECU 311b from the in-vehicle network 314 by the CAN partial network, or controls the power supply SW 309 to supply power to the driver monitor ECU 311b. As a result, the occupant recognition sensor control unit 312 d sets the driver monitor ECU 311 b in a state capable of detecting an illegal act on the vehicle 1. Further, the sensitivity control unit 312b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310 (step S601).

  When the driver monitor ECU 311b transitions to the security mode, the driver monitor ECU 311b acquires a captured image from the driver monitor imaging unit 23 provided so as to be able to image the inside of the vehicle compartment 2a. Next, the driver monitor ECU 311b detects the state of the occupant (for example, whether or not the image of the face of the occupant is included in the captured image) based on the acquired captured image. And driver monitor ECU311b detects the unfair act about vehicles 1, when a crew member's state is detected from an image pick-up picture (Step S504: Yes). Alternatively, the driver monitor ECU 311b changes the amount of change in the captured image acquired from the driver monitor imaging unit 23 when transitioning to the security mode based on the captured image obtained by imaging by the driver monitor imaging unit 23 in the alert preparation state. Ask. Then, the driver monitor ECU 311 b may detect the injustice against the vehicle 1 when the calculated amount of change exceeds a preset threshold value.

  When it is determined that the remote operation request has not been received by the remote control ECU 304 (step S502: No) or when it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b detects a fraud detection sensor A fraudulent action on the vehicle 1 is detected by means of 310 (step S602). At that time, the occupant recognition sensor control unit 312d invalidates the driver monitor ECU 311b or sets the driver monitor ECU 311b to the normal use mode (step S602). When disabling the driver monitor ECU 311b, the occupant recognition sensor control unit 312d controls the power supply SW 309 to shut off the supply of power to the driver monitor ECU 311b, or disconnects the driver monitor ECU 311b from the in-vehicle network 314 by CAN partial network. Then, the driver monitor ECU 311b is put to sleep (rest state).

  Next, with reference to FIG. 7, an example of a process of detecting a fraudulent action on the vehicle 1 using the occupant monitor ECU 311 c in the vehicle 1 according to the present embodiment will be described. FIG. 7 is a flow chart showing an example of the process of detecting a fraudulent act on the vehicle using the occupant monitor ECU in the vehicle according to the present embodiment. In the following description, descriptions of portions similar to the processing illustrated in FIG. 5 will be omitted.

  If it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the occupant monitor ECU 311c in the security mode (step S701). At this time, the occupant recognition sensor control unit 312d cancels the disconnection of the occupant monitor ECU 311c from the in-vehicle network 314 by the CAN partial network, or controls the power supply SW 309 to supply power to the occupant monitor ECU 311c. As a result, the occupant recognition sensor control unit 312d sets the occupant monitor ECU 311c to a state in which it is possible to detect an illegal act on the vehicle 1. Further, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310 (step S 701).

  When the occupant monitor ECU 311 c transitions to the security mode, the occupant monitor ECU 311 c acquires a captured image from the occupant monitoring imaging unit 25 provided so as to be able to image the inside of the passenger compartment 2 a. Next, the occupant monitor ECU 311 c detects the condition of the occupant (for example, whether or not the image of the occupant's face is included in the captured image) based on the acquired captured image. And passenger | crew monitor ECU311c detects the fraudulent act with respect to the vehicle 1, when a passenger | crew's state is detected from a captured image (step S504: Yes). Alternatively, the occupant monitor ECU 311 c changes the amount of change in the captured image acquired from the occupant monitoring imaging unit 25 when transitioning to the security mode based on the captured image obtained by imaging by the driver monitoring imaging unit 23 in the alert preparation state. Ask. Then, the occupant monitor ECU 311 c may detect an injustice against the vehicle 1 when the calculated amount of change exceeds a preset threshold.

  When it is determined that the remote operation request has not been received by the remote control ECU 304 (step S502: No) or when it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b detects a fraud detection sensor A fraudulent action on the vehicle 1 is detected by means of 310 (step S702). At this time, the occupant recognition sensor control unit 312d invalidates the occupant monitor ECU 311c or sets the occupant monitor ECU 311c in the normal use mode (step S503). When the occupant monitor ECU 311c is invalidated, the occupant recognition sensor control unit 312d controls the power supply SW 309 to cut off the supply of power to the occupant monitor ECU 311c, or disconnects the occupant monitor ECU 311c from the in-vehicle network 314 by CAN partial network. Then, the occupant monitor ECU 311 c is put to sleep (rest state).

  Next, with reference to FIG. 8, an example of a process of detecting a fraudulent action on the vehicle 1 using the three-dimensional object sensor 311 d in the vehicle 1 according to the present embodiment will be described. FIG. 8 is a flowchart showing an example of the flow of a process of detecting fraudulent acts on a vehicle using a three-dimensional object sensor in the vehicle according to the present embodiment. In the following description, descriptions of portions similar to the processing illustrated in FIG. 5 will be omitted.

  If it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the three-dimensional object sensor 311d in the security mode (step S801). At that time, the occupant recognition sensor control unit 312d cancels the disconnection of the three-dimensional object sensor 311d from the in-vehicle network 314 by the CAN partial network, or controls the power supply SW 309 to supply power to the three-dimensional object sensor 311d. . As a result, the occupant recognition sensor control unit 312d sets the three-dimensional object sensor 311d to a state in which it is possible to detect an illegal act on the vehicle 1. Further, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310.

  When transitioning to the security mode, the three-dimensional object sensor 311d obtains the three-dimensional shape of the three-dimensional object in the cabin 2a based on the detection result of the reflected wave from the three-dimensional object in the cabin 2a. Furthermore, the three-dimensional object sensor 311d determines whether the determined three-dimensional shape is different from the three-dimensional shape of the three-dimensional object detected in the alert preparation state. Then, if the three-dimensional shape of the specific part of the three-dimensional object in the passenger compartment 2a that does not move by remote operation differs from the three-dimensional shape of the specific part detected in the alert preparation state It detects (step S504: Yes).

  When it is determined that the remote operation request has not been received by the remote control ECU 304 (step S502: No) or when it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b detects a fraud detection sensor A fraudulent action on the vehicle 1 is detected by means of 310 (step S802). At this time, the occupant recognition sensor control unit 312d deactivates the three-dimensional object sensor 311d or sets the three-dimensional object sensor 311d in the normal use mode (step S802). When disabling the three-dimensional object sensor 311d, the occupant recognition sensor control unit 312d controls the power supply SW 309 to shut off the supply of power to the three-dimensional object sensor 311d, or the in-vehicle network of the three-dimensional object sensor 311d by CAN partial network. It separates from 314 and makes solid object sensor 311d sleep (rest state).

  Next, with reference to FIG. 9, an example of a process of detecting a fraudulent action on the vehicle 1 using the radio wave type sensor 311d in the vehicle 1 according to the present embodiment will be described. FIG. 9 is a flow chart showing an example of the flow of a process of detecting fraudulent acts on a vehicle using the radio wave type sensor in the vehicle according to the present embodiment. In the following description, descriptions of portions similar to the processing illustrated in FIG. 5 will be omitted.

  If it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the radio wave type sensor 311d to the security mode (step S901). At that time, the occupant recognition sensor control unit 312d cancels the disconnection of the radio wave type sensor 311d from the in-vehicle network 314 by the CAN partial network, or controls the power supply SW 309 to supply power to the radio wave type sensor 311d. . As a result, the occupant recognition sensor control unit 312d sets the radio wave type sensor 311d to a state capable of detecting an illegal act on the vehicle 1. Further, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310.

  When the radio wave type sensor 311 e transitions to the security mode, it detects the biological information of the occupant present in the passenger compartment 2 a based on the detection result of the radio wave reflected in the passenger compartment 2 a. Then, when the detected biological information is different from the biological information detected in the alert preparation state, the radio wave type sensor 311e detects an illegal act on the vehicle 1 (step S504: Yes).

  When it is determined that the remote operation request has not been received by the remote control ECU 304 (step S502: No) or when it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b detects a fraud detection sensor A fraudulent action on the vehicle 1 is detected by means of 310 (step S902). At this time, the occupant recognition sensor control unit 312d deactivates the radio wave type sensor 311d or sets the radio wave type sensor 311d to the normal use mode (step S902). When invalidating the radio wave type sensor 311d, the occupant recognition sensor control unit 312d controls the power supply SW 309 to shut off the supply of power to the radio wave type sensor 311d, or the radio wave type sensor 311d is connected to the in-vehicle network by CAN partial network. And the radio wave type sensor 311d is put to sleep (rest state).

  Next, with reference to FIG. 10, an example of a process of detecting a fraudulent action on the vehicle 1 using the seat ECU 311a in the vehicle 1 according to the present embodiment will be described. FIG. 10 is a flowchart showing an example of the process of detecting a fraudulent act on a vehicle using a seat ECU in the vehicle according to the present embodiment. In the following description, descriptions of portions similar to the processing illustrated in FIG. 5 will be omitted.

  If it is determined that the remote operation request has been received by the remote control ECU 304 (step S502: Yes), the occupant recognition sensor control unit 312d sets the seat ECU 311a in the security mode (step S1001). At that time, the occupant recognition sensor control unit 312d cancels the disconnection of the seat ECU 311a from the in-vehicle network 314 by the CAN partial network, or controls the power supply SW 309 to supply power to the seat ECU 311a. As a result, the occupant recognition sensor control unit 312 d sets the seat ECU 311 a in a state in which it can detect fraudulent activity on the vehicle 1. Further, the sensitivity control unit 312 b invalidates the fraud detection sensor 310 or lowers the detection sensitivity of the fraud detection sensor 310.

  The seat ECU 311a acquires the load applied to the seat 2b from the load sensor 21 and the rear seat seating sensor 22 built in the seat 2b of the vehicle 1 when transitioning to the security mode. Then, when the acquired load is in a state different from the state of presence / absence of seating on the seat 2b in the alert preparation state or in the alert preparation state, the seat ECU 311a detects the load detection result by the load sensor 21 and the rear seat seating sensor 22. If it is different from the physical information of the passenger based on the detected information, an illegal act on the vehicle 1 is detected (step S504: Yes).

  When it is determined that the remote operation request has not been received by the remote control ECU 304 (step S502: No) or when it is determined that the vehicle 1 is not in remote operation (step S507: No), the sensitivity control unit 312b detects a fraud detection sensor The unauthorized entry to the vehicle 1 is detected by 310 (step S1002). At this time, the occupant recognition sensor control unit 312d invalidates the seat ECU 311a or sets the seat ECU 311a in the normal use mode (step S1002). When disabling the seat ECU 311a, the occupant recognition sensor control unit 312d controls the power supply SW 309 to shut off the supply of power to the seat ECU 311a or disconnects the seat ECU 311a from the in-vehicle network 314 by CAN partial network to The ECU 311a is put to sleep (rest state).

  As described above, according to the vehicle 1 according to the present embodiment, in the case where the vehicle 1 is determined to be in the alert state and the vehicle 1 is operated in response to the remote operation request In the case where it is determined that the vehicle 1 is in the alert state and the vehicle 1 is operated according to the remote operation request, since the passenger state detection sensor 311 can detect an illegal act while preventing the false detection of However, while preventing the possibility that the fraud detecting sensor 310 erroneously detects a fraudulent act on the vehicle 1, the fraudulent act on the vehicle 1 can be detected with high accuracy.

1 Vehicle 303 battery 304 remote control ECU (first control unit)
305 ... Air conditioner ECU
306 ... engine ECU
308 ... Body ECU
309 ... power switch
310 ... fraud detection sensor (first detection unit)
311 ... Occupant state detection sensor (second detection unit)
311a ... seat ECU (load recognition unit)
311b ... driver monitor ECU (occupant state recognition unit)
311c ... occupant monitor ECU (occupant condition recognition unit)
311 d: Three-dimensional object sensor (three-dimensional object recognition unit)
311e ... radio wave type sensor (living body recognition unit)
312: Anti-theft ECU (determination unit, second control unit)
312a ... state transition control unit 312b ... sensitivity control unit 312c ... transition prohibition unit 312d ... occupant recognition sensor control unit

Claims (5)

A first detection unit that detects a fraudulent act on a vehicle;
A second detection unit that detects a state of a passenger who got on the vehicle;
A determination unit that determines whether the state of the vehicle is an alert state in which an occupant has alighted from the vehicle;
A first control unit that operates the vehicle in response to a remote operation request received from an external device;
When it is determined that the vehicle is in the alert state and the vehicle is operated according to the remote operation request, the first detection unit is disabled or the detection sensitivity of the first detection unit is lowered, and the second detection unit is A second control unit that uses the second control unit to detect an illegal act on the vehicle;
Anti-theft device comprising:   The antitheft device according to claim 1, wherein the second control unit invalidates the second detection unit when it is determined that the alarm state is present and the remote operation request is not received. The second detection unit is
A load recognition unit that acquires a detection result of a load applied to a seat of the vehicle and determines the presence or absence of seating on the seat or the physical size of an occupant seated on the seat based on the load;
An occupant state recognition unit that acquires a captured image obtained by imaging the inside of the vehicle by an imaging unit, and detects the occupant based on the captured image;
A three-dimensional object recognition unit provided so as to be able to detect a distance to a three-dimensional object in the vehicle, and detecting a three-dimensional shape of the three-dimensional object in the vehicle based on the detection result of the distance;
A living body recognition unit that detects living body information of an occupant in the vehicle;
The antitheft device according to claim 1 or 2, comprising at least one of the following.   When the load recognition unit determines that the vehicle is in the alert state and operates the vehicle according to the remote operation request, the load applied to the seat is stored in the seat when the occupant's intention to get off is detected. If the load applied to the seat is different from the presence or absence of the seat, or if the load applied to the seat is compared with the physical information of the occupant seated on the seat stored when the occupant's intention to dismount was detected, the difference is predetermined. 4. The antitheft device according to claim 3, wherein when the threshold value is exceeded, a fraud on the vehicle is detected.   The occupant state recognition unit determines that the vehicle is in a vigilant state when the state of the occupant is detected based on the captured image when it is determined that the state is the alert state and the vehicle is operated according to the remote operation request. The antitheft device according to claim 3 or 4 which detects.

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