In-vehicle abnormality detection device

Abstract

An in-cabin abnormality monitoring device detects an abnormal state in a cabin until an abnormal event occurs in a vehicle while suppressing power consumption. A vehicle interior abnormality detection device is provided with: a sensor signal processing unit (110) for inputting sensor signals from a pressure sensor group arranged in a planar shape in a lower region of a seat surface of a vehicle and in an upper region or a lower region of a floor carpet in the vicinity of a foot of a passenger; a comparison unit (120) that compares the sensor signal with a predetermined threshold value; a determination unit (130) that is activated when a comparison result indicating that the sensor signal level exceeds a predetermined threshold value is input from the comparison unit while the drive system of the vehicle is stopped, and that determines at least the presence or absence of a key in the cabin; and an abnormality detection unit (140) that is activated at the same timing as the determination unit (130), and detects an abnormality in the vehicle cabin on the basis of the determination result of the determination unit (130) when there is no key in the vehicle cabin.

Description

Technical Field

[0001] The invention relates to a vehicle compartment abnormality detection device. Background Art

[0002] Recently, vehicle theft and theft, where third parties break into parked vehicles by picking the locks and taking away valuables, have become social issues. Furthermore, during the hot summer months, the issue of young children being left in critical situations in vehicles has also drawn widespread attention.

[0003] Regarding the anti-theft device as described above, a device is disclosed, which includes: an alarm control unit that controls the acoustic output of an alarm sound; and an alarm cancellation unit that cancels the acoustic output of the alarm sound according to a predetermined operation, the alarm control unit including: a first alarm control unit that, if a first timing signal is detected, causes the first alarm sound to be output into the vehicle compartment; and a second alarm control unit that, if a second timing signal is detected during the process of outputting the first alarm sound to the vehicle compartment, causes the second alarm sound to be output outside the vehicle compartment (for example, refer to Patent Document 1).

[0004] In addition, regarding the above-mentioned leaving behind, a device having a leaving behind detection unit and a control content determination unit is disclosed (for example, refer to patent document 2), wherein the leaving behind detection unit detects that a person is left in the vehicle compartment based on a sensor signal obtained by a sensor for detecting a person present in the vehicle compartment, and when the control content determination unit detects that a person is left behind, the control content determination unit determines the content of the control corresponding to the leaving behind based on the position of the vehicle obtained by the vehicle position acquisition unit.

[0005] Prior art literature Patent Literature Patent Document 1: Japanese Patent Application Laid-Open No. 2004-291833 Patent Document 2: Japanese Patent Application Laid-Open No. 2020-004242 Summary of the Invention

[0006] Technical issues However, although the technology described in Patent Document 1 is a technology for outputting an alarm sound inside and outside the vehicle, the output of the alarm sound is a case where the monitoring mode is switched by operating the mode switch. When the vehicle is parked with the ignition turned off, there is a problem of increased power consumption and impracticality in order to enable the device to function against possible theft inside the vehicle and / or vehicle theft.

[0007] In addition, in the technology described in Patent Document 1, illegal intrusion into the vehicle compartment by a third party is detected by triggering the lighting of the interior lights and / or the turning-on operation of the ignition switch and the detection of the vehicle speed pulse. However, since the vehicle is already in a state of being seized by a third party at the time when the ignition switch is turned on and the vehicle speed pulse is detected, the illegal behavior of the third party is not prevented in advance.

[0008] In addition, the technology described in Patent Document 2 determines the control of the vehicle corresponding to the person left behind based on the position of the vehicle when a person is detected to be left behind in the vehicle. When the vehicle is in a parked state due to the ignition being disconnected, in order to enable the device to function in response to the possible leaving behind, there are problems such as increased power consumption and impracticality.

[0009] Furthermore, the technology described in Patent Document 2 is a technology that functions when it is detected that a person is left behind in a vehicle, and is not a technology that foresees the person being left behind and prevents the person from doing so.

[0010] Therefore, the present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a vehicle interior abnormality detection device that detects an abnormal state in a vehicle interior before an abnormal event occurs in the vehicle while suppressing power consumption.

[0011] Technical Solution Method 1: In one or more embodiments of the present invention, a vehicle control device is provided, which comprises: a sensor signal processing unit which inputs a sensor signal from a pressure sensor group; a comparison unit which compares the sensor signal level input by the sensor signal processing unit with a predetermined threshold value; a determination unit which, when the drive system of the vehicle is stopped, starts when a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is input from the comparison unit, and at least determines whether there is a key in the vehicle cabin; and an abnormality detection unit which, when the drive system of the vehicle is stopped, starts when a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is input from the comparison unit, and detects an abnormality in the vehicle cabin when there is no key in the vehicle cabin based on the determination result of the determination unit.

[0012] Method 2: One or more embodiments of the present invention include a pressure sensor group and a controller, wherein the controller includes one or more processors and one or more memories communicatively connected to the one or more processors, the one or more processors input a sensor signal from the pressure sensor group, compare the input sensor signal level with a predetermined threshold value, and when the vehicle's drive system is stopped, when a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is input, start the vehicle's drive system, at least determine whether there is a key in the vehicle cabin, and based on the determination result, detect an abnormality in the vehicle cabin when there is no key in the vehicle cabin.

[0013] Technical Effects According to one or more embodiments of the present invention, there is an effect of being able to detect an abnormal state in a vehicle cabin before an abnormal event occurs in the vehicle while suppressing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a diagram showing the configuration of the vehicle interior abnormality detection device according to the first embodiment of the present invention.

[0015] Figure 2 It is a diagram illustrating the arrangement of pressure sensors in the vehicle interior abnormality detection device according to the first embodiment of the present invention.

[0016] Figure 3 This is a processing flowchart of the vehicle interior abnormality detection device according to the first embodiment of the present invention.

[0017] Figure 4 It is a diagram showing the configuration of a vehicle interior abnormality detection device according to a second embodiment of the present invention.

[0018] Figure 5 This is a processing flowchart of the vehicle interior abnormality detection device according to the second embodiment of the present invention.

[0019] Figure 6 This is a processing flowchart of the vehicle interior abnormality detection device according to the second embodiment of the present invention.

[0020] Explanation of symbols 1: Abnormal detection device in the car 1A: Abnormal detection device inside the car 100: Control Department 100A: Control unit 110: Sensor signal processing unit 120: Comparison Department 130: Judgment Department 130A: Judgment Unit 140: Abnormal Detection Department 140A: Abnormality Detection Unit 200: Notification Department 300: Pressure sensor CB: Bus DETAILED DESCRIPTION

[0021] Below, use Figures 1 to 6 Embodiments of the present invention will be described.

[0022] <First embodiment> use Figures 1 to 3 , the vehicle interior abnormality detection device 1 according to this embodiment will be described.

[0023] <Configuration of In-Vehicle Abnormality Detection Device 1> like Figure 1 As shown, the vehicle interior abnormality detection device 1 of the present embodiment is configured to include a control unit 100 as a controller and a notification unit 200 .

[0024] The control unit 100 controls the overall operation of the vehicle interior abnormality detection device 1 according to a control program stored in a ROM (Read Only Memory) or the like (not shown).

[0025] In this embodiment, for example, processing control of the sensor signal processing unit 110 , comparison processing control of the comparison unit 120 , determination processing control of the determination unit 130 , and abnormality detection processing control of the abnormality detection unit 140 , which will be described later, are executed.

[0026] When the notification unit 200 obtains a detection result indicating that an abnormality in the vehicle cabin has been detected, it notifies the inside and outside of the vehicle cabin of the abnormal state.

[0027] Note that the notification method may be a method that operates on the auditory sense such as sound, or a method that operates on the visual sense such as lighting control of lighting.

[0028] like Figure 1 As shown, the control unit 100 includes a sensor signal processing unit 110 , a comparison unit 120 , a determination unit 130 , and an abnormality detection unit 140 .

[0029] The sensor signal processing unit 110 receives as input sensor signals from a group of pressure sensors arranged in a planar manner in the lower area of ​​the vehicle seat surface and in the upper or lower area of ​​the floor carpet near the feet of the occupant.

[0030] Specifically, as shown in the figure, the passenger seat 10 and the floor carpet 12 Figure 2As shown, the pressure sensors 300 are arranged in a planar manner in the lower area of ​​the seat surface 11 of the seat 10 and in the upper area or the lower area of ​​the floor carpet 12 near the feet of the occupant.

[0031] The sensor signal processing unit 110 uses sensor signals of a pressure sensor group composed of a plurality of pressure sensors 300 as input.

[0032] It should be explained that Figure 2 In the description, the passenger seat 10 is taken as an example, but the pressure sensors 300 are similarly provided in the driver's seat, the rear seats, and the floor carpet 12 near the feet of the driver and / or rear seat passengers.

[0033] In addition, each pressure sensor 300 corresponds to an independent port of the sensor signal processing unit 110 on a one-to-one basis.

[0034] That is, the sensor signal processing unit 110 can identify which pressure sensor 300 has responded by identifying to which port the sensor signal is input.

[0035] The sensor signal processing unit 110 transmits the sensor signals of the pressure sensor group as data associated with each pressure sensor 300 to a comparison unit 120 described later via a bus CB for CAN (Controller Area Network) communication.

[0036] The comparison unit 120 compares the signal level of the acquired sensor signal with a predetermined threshold value.

[0037] Here, the predetermined threshold value is used, for example, to exclude the weight of a child seat or a youth seat when the child seat or the youth seat is installed on the seat.

[0038] The threshold value can be set by the vehicle occupant, and can be set to 5 kg, 10 kg, or 15 kg, for example, based on the inherent weight of the child seat or the youth seat.

[0039] Note that the comparison unit 120 transmits the comparison result to the determination unit 130 and the abnormality detection unit 140 described later via the CAN communication bus CB.

[0040] The determination unit 130 is activated when a comparison result indicating that the signal level exceeds a predetermined threshold value is obtained while the vehicle drive system is stopped.

[0041] Furthermore, the determination unit 130 determines at least whether a key is present in the vehicle after starting.

[0042] That is, the determination unit 130 is activated by the wake-up function of the CAN communication, triggered by the signal level exceeding a predetermined threshold.

[0043] Furthermore, the determination unit 130 determines whether or not a key is present in the vehicle cabin based on information from an ECU (Electronic Control Unit) or the like, for example.

[0044] The determination unit 130 can obtain image data from a camera that captures images inside the vehicle, and determine whether there is a key in the vehicle based on the obtained image data. It can also have a short-range wireless function that can communicate with a smart key, and determine whether there is a key in the vehicle through this communication.

[0045] Note that the determination unit 130 transmits the determination result to the abnormality detection unit 140 described later via the CAN communication bus CB.

[0046] The abnormality detection unit 140 is activated when the vehicle's drive system is stopped and a comparison result indicating that the signal level exceeds a predetermined threshold is obtained. After activation, the abnormality detection unit detects an abnormality in the vehicle cabin if a determination result indicating that the key is not in the vehicle cabin is obtained.

[0047] Specifically, the abnormality detection unit 140 is activated by the wake-up function of the CAN communication when the signal level exceeds a predetermined threshold. The abnormality detection unit 140 then detects an abnormality in the vehicle cabin when the sensor signal level from the pressure sensor 300 exceeds the predetermined threshold and the key is not in the vehicle cabin.

[0048] Incidentally, the abnormality detection unit 140 transmits the detection result to the notification unit 200 described later via the CAN communication bus CB.

[0049] <Processing of In-Vehicle Abnormality Detection Device 1> use Figure 3 , the processing of the vehicle interior abnormality detection device 1 according to this embodiment will be described.

[0050] like Figure 3 As shown, the control unit 100 determines whether the auxiliary power supply (ACC) is in the ON state based on the information acquired from the ECU (step S111 ).

[0051] Then, when the control unit 100 determines that the auxiliary power supply (ACC) is in the on state (YES in step S111 ), the control unit 100 shifts to the standby mode.

[0052] On the other hand, when the control unit 100 determines that the auxiliary power supply (ACC) is in the OFF state (No in step S111 ), the sensor signal processing unit 110 enables the sensor signal acquired from the pressure sensor 300 (step S112 ).

[0053] The comparison unit 120 acquires the sensor signal via the CAN communication bus CB, compares the signal level of the acquired sensor signal with a predetermined threshold value, and determines whether the signal level is greater than the predetermined threshold value (step S113 ).

[0054] Then, when the comparison unit 120 determines that the signal level is lower than the predetermined threshold value (No in step S113 ), the comparison unit 120 shifts to the standby mode.

[0055] On the other hand, when the comparison unit 120 determines that the signal level is greater than the predetermined threshold value ("Yes" in step S113), it outputs a signal including a comparison result indicating that the signal level is greater than the predetermined threshold value to the determination unit 130 and the abnormality detection unit 140 via the CAN communication bus CB.

[0056] Then, as a result, the determination unit 130 and the abnormality detection unit 140 are activated (wake up) (step S114 ).

[0057] When the determination unit 130 acquires a signal including a comparison result indicating that the signal level exceeds a predetermined threshold value, it determines whether or not a key is present in the vehicle (step S115 ).

[0058] Then, if the determination unit 130 determines that the key is present in the vehicle (“Yes” in step S115 ), the system shifts to the standby mode.

[0059] On the other hand, when determining that there is no key in the vehicle (No in step S115 ), the determination unit 130 outputs a signal indicating that there is no key in the vehicle to the abnormality detection unit 40 via the CAN communication bus CB.

[0060] When the abnormality detection unit 140 acquires a signal including a determination result indicating that there is no key in the vehicle interior, the abnormality detection unit 140 detects an abnormality in the vehicle interior (step S116 ).

[0061] Then, the abnormality detection unit 140 outputs a signal including a detection result indicating that an abnormality has been detected to the notification unit 200 via the CAN communication bus CB.

[0062] When the notification unit 200 acquires a signal including a detection result indicating that an abnormality has been detected, it issues a warning notification (step S117 ).

[0063] The control unit 100 determines whether the auxiliary power supply (ACC) is in the on state based on the information acquired from the ECU (step S118 ).

[0064] Then, when the control unit 100 determines that the auxiliary power supply (ACC) is in the OFF state (No in step S118 ), the control unit 100 causes the notification unit 200 to continue to perform the warning notification.

[0065] On the other hand, when the control unit 100 determines that the auxiliary power supply (ACC) is on (YES in step S118 ), the control unit 100 causes the notification unit 200 to stop issuing the warning notification and ends the process.

[0066] <Function and Effect> As described above, the sensor signal processing unit 110 of the vehicle interior abnormality detection device 1 according to the present embodiment inputs sensor signals from the group of pressure sensors 300 arranged in a planar shape.

[0067] Specifically, a pressure sensor group composed of a plurality of pressure sensors 300 is arranged in a planar manner, for example, under the seat surface 11 of the vehicle seat 10 and above or below the floor carpet 12 near the feet of the occupant.

[0068] Therefore, it is possible to accurately grasp that a heavy object is left on the seat surface 11 of the vehicle seat 10 .

[0069] In addition, the pressure sensor group consisting of multiple pressure sensors 300 is also arranged on the floor carpet 12, for example, near the feet of the passenger. Therefore, in addition to the situation where the passenger is sitting on the seat surface 11 of the seat 10 and the passenger is in an abnormal sitting posture such as raising his feet and hugging them, it is also possible to determine whether the passenger is sitting on the seat surface 11 of the vehicle seat 10.

[0070] Furthermore, each pressure sensor 300 corresponds one-to-one to an independent port of the sensor signal processing unit 110 . Therefore, by analyzing the presence or absence of the sensor signal, it is possible to accurately determine which pressure sensor 300 is being pressurized.

[0071] Furthermore, the determination unit 130 and the abnormality detection unit 140 of the vehicle interior abnormality detection device 1 of the present embodiment are activated by the wake-up function of the CAN communication when the sensor signal level from the comparison unit 120 exceeds a predetermined threshold value as a trigger.

[0072] Therefore, it is possible to detect an abnormal state in the vehicle cabin before an abnormal event occurs in the vehicle while suppressing power consumption.

[0073] Furthermore, the comparison unit 120 of the vehicle interior abnormality detection device 1 according to the present embodiment compares the sensor signal level input from the sensor signal processing unit 110 with a predetermined threshold value.

[0074] Furthermore, the predetermined threshold value is used to exclude the weight of the child seat or the youth seat when the child seat or the youth seat is installed on the seat.

[0075] Therefore, it is also possible to accurately grasp whether there is a child sitting in the child seat or the youth seat.

[0076] In addition, whether the seat is a child seat or a youth seat, it is possible to accurately determine whether the heavy object on the seat surface 11 of the seat 10 is a passenger.

[0077] Furthermore, the abnormality detecting unit 140 of the vehicle interior abnormality detecting device 1 of the present embodiment detects abnormality in the vehicle interior based on the determination result of the determining unit 130 when there is no key in the vehicle interior.

[0078] That is, when there is no key in the vehicle, the vehicle doors are locked, and there is someone inside the vehicle.

[0079] Therefore, if the person is a passenger, there is a high possibility of leaving the vehicle behind, and if the person is a third party other than the passenger, there is a high possibility of theft in the vehicle, so such abnormal conditions can be accurately detected.

[0080] Furthermore, the comparison unit 120 , the determination unit 130 , and the abnormality detection unit 140 of the vehicle interior abnormality detection device 1 of the present embodiment are connected via CAN communication.

[0081] Therefore, the node in the dormant state of the CAN protocol uses a function to wake up when an explicit bus signal is input from the bus, that is, the comparison unit 120 inputs an explicit bus signal to the bus indicating that the sensor signal level exceeds a predetermined threshold, thereby waking up the determination unit 130 and the abnormality detection unit 140 in the dormant state.

[0082] Therefore, the power consumption when ACC is OFF can be suppressed.

[0083] Furthermore, when an abnormal state is detected, the notification unit 200 of the vehicle interior abnormality detection device 1 of the present embodiment notifies the vehicle interior and exterior of the abnormal state.

[0084] Therefore, by notifying the abnormal state, it can be expected that the abnormal state can be resolved quickly.

[0085] <Second embodiment> use Figures 4 to 6 , a vehicle interior abnormality detection device 1A according to this embodiment will be described.

[0086] <Configuration of In-Vehicle Abnormality Detection Device 1A> like Figure 4As shown, the vehicle interior abnormality detection device 1A of the present embodiment includes a sensor signal processing unit 110 , a comparison unit 120 , a determination unit 130A, an abnormality detection unit 140A, a notification unit 200 , and a control unit 100A.

[0087] In addition to determining whether a key is present in the vehicle cabin, the determination unit 130A also determines whether the vehicle door locks are locked or unlocked.

[0088] Specifically, the determination unit 130A determines whether or not the key is in the vehicle cabin based on information from the ECU or the like, for example, via the control unit 100A.

[0089] Furthermore, the determination unit 130A determines the locked / unlocked state of the vehicle door locks based on information from the ECU, for example, via the control unit 100A.

[0090] The determination result of the determination unit 130A is transmitted to the abnormality detection unit 140 described later via the CAN communication bus CB.

[0091] Based on the determination result of the determination unit 130A, the abnormality detection unit 140A detects that a passenger has been left behind in the vehicle cabin when the vehicle door locks are locked and there is no key in the vehicle cabin.

[0092] Furthermore, based on the determination result of the determination unit 130A, the abnormality detection unit 140A detects that a third party has intruded into the vehicle cabin when the vehicle door locks are unlocked and there is no key in the vehicle cabin.

[0093] The determination result of the abnormality detection unit 140A is transmitted to a notification unit 200 described later via the CAN communication bus CB.

[0094] <Processing of In-Vehicle Abnormality Detection Device 1A> use Figure 5 、 Figure 6 , the processing of the vehicle interior abnormality detection device 1A according to this embodiment will be described.

[0095] like Figure 5 As shown, the control unit 100A determines whether the auxiliary power supply (ACC) is in the ON state based on the information acquired from the ECU (step S111 ).

[0096] Then, when the control unit 100A determines that the auxiliary power supply (ACC) is on (YES in step S111 ), the control unit 100A shifts to the standby mode.

[0097] On the other hand, when the control unit 100A determines that the auxiliary power supply (ACC) is in the OFF state (No in step S111 ), the sensor signal processing unit 110 validates the sensor signal input from the pressure sensor 300 (step S112 ).

[0098] The comparison unit 120 receives the sensor signal from the sensor signal processing unit 110 via the CAN communication bus CB, compares the sensor signal level with a predetermined threshold, and determines whether the sensor signal level is greater than the predetermined threshold (step S113 ).

[0099] Then, when the comparison unit 120 determines that the sensor signal level is lower than the predetermined threshold value (No in step S113 ), the comparison unit 120 shifts to the standby mode.

[0100] On the other hand, when the comparison unit 120 determines that the sensor signal level is greater than the predetermined threshold value (YES in step S113 ), it outputs a signal to that effect to the determination unit 130 via the CAN communication bus CB.

[0101] Then, as a result, the determination unit 130A and the abnormality detection unit 140A are activated (wake up) (step S114 ).

[0102] like Figure 6 As shown, the determination unit 130A determines whether the doors of the vehicle are locked or unlocked (step S211 ).

[0103] Then, when determining that the doors of the vehicle are locked (“Closed” in step S211 ), the determination unit 130A determines whether a key is present in the vehicle interior (step S212 ).

[0104] In step S212 , if the determination unit 130A determines that the key is present in the vehicle (“Yes” in step S212 ), the system shifts to the standby mode.

[0105] On the other hand, when determining unit 130 determines that there is no key in the vehicle interior (No in step S121 ), it outputs a signal to that effect to abnormality detection unit 140A via bus CB for CAN communication.

[0106] At this time, the abnormality detection unit 140A detects that the passenger has been left behind in the vehicle (step S116 ).

[0107] Then, abnormality detection unit 140A outputs information indicating that an abnormality has been detected to notification unit 200 via bus CB for CAN communication.

[0108] Upon receiving the abnormality detection information from the abnormality detection unit 140A via the CAN communication bus CB, the notification unit 200 issues a warning notification (step S117 ).

[0109] The control unit 100 determines whether the auxiliary power supply (ACC) is in the on state based on the information acquired from the ECU (step S118 ).

[0110] Then, when the control unit 100 determines that the auxiliary power supply (ACC) is in the OFF state (No in step S118 ), the control unit 100 causes the notification unit 200 to continue to perform the warning notification.

[0111] On the other hand, when the control unit 100 determines that the auxiliary power supply (ACC) is on (YES in step S118 ), the control unit 100 causes the notification unit 200 to stop issuing the warning notification and ends the process.

[0112] Furthermore, when determining unit 130A determines in step S211 that the vehicle door is unlocked (“ON” in step S211 ), it determines whether the smart key has been operated based on information from the ECU via control unit 100 (step S213 ).

[0113] Then, when the determination unit 130A determines that the smart key has been operated (YES in step S213 ), the process returns to step S111 .

[0114] On the other hand, when the determination unit 130A determines that the smart key has not been operated (No in step S213 ), it determines whether a key is present in the vehicle interior (step S214 ).

[0115] Then, if the determination unit 130A determines that the key is present in the vehicle (YES in step S214 ), the system shifts to the standby mode.

[0116] On the other hand, when determining unit 130A determines that there is no key in the vehicle (No in step S214 ), it outputs information to that effect to abnormality detection unit 140A.

[0117] At this time, the abnormality detection unit 140A detects that a third person has entered the vehicle interior (step S116 ).

[0118] Then, abnormality detection unit 140A outputs information indicating that an abnormality has been detected to notification unit 200 via bus CB for CAN communication.

[0119] Upon receiving the abnormality detection information from the abnormality detecting unit 140A, the notifying unit 200 issues a warning notification (step S117 ).

[0120] Based on the information obtained from the ECU, the control unit 100 determines whether the auxiliary power supply (ACC) is on (step S118). If the control unit 100 determines that the auxiliary power supply (ACC) is off ("No" in step S118), it causes the notification unit 200 to continue issuing warning notifications.

[0121] On the other hand, when the control unit 100 determines that the auxiliary power supply (ACC) is in the on state (YES in step S118 ), the control unit 100 causes the notification unit 200 to stop issuing the warning notification and ends the process.

[0122] <Function and Effect> As described above, the abnormality detecting unit 140A of the vehicle interior abnormality detecting device 1A of this embodiment detects the absence of a passenger when the vehicle door locks are locked and there is no key in the vehicle interior based on the determination result of the determining unit 130A.

[0123] That is, when the vehicle's door locks are locked, there is no key in the car, and there are passengers in the car, it is considered that the passengers, including the driver, locked the vehicle's door locks and left the vehicle despite the presence of passengers in the car.

[0124] Therefore, when the vehicle door locks are locked, there is no key in the vehicle, and there is a passenger in the vehicle, the vehicle interior abnormality detection device 1A can promptly notify that a passenger has been left in the vehicle.

[0125] Therefore, it is possible to quickly detect an abnormal state in the vehicle cabin until an abnormal event occurs in the vehicle while suppressing power consumption.

[0126] Furthermore, the abnormality detection unit 140A of the vehicle interior abnormality detection device 1A of this embodiment detects intrusion of a third person into the vehicle interior based on the determination result of the determination unit 130A when the vehicle door locks are unlocked and there is no key in the vehicle interior.

[0127] That is, when the vehicle door locks are unlocked, there is no key in the car, and there are passengers in the car, it is believed that the vehicle door locks were unlocked due to picking, etc., and an incident of a third party intruding into the car occurred.

[0128] Therefore, when the vehicle door locks are unlocked, there is no key in the vehicle cabin, and there are passengers in the vehicle cabin, the vehicle cabin abnormality detection device 1A can promptly notify that a third party has entered the vehicle cabin.

[0129] Therefore, it is possible to quickly detect an abnormal state in the vehicle cabin before an abnormal event occurs in the vehicle while suppressing power consumption.

[0130] <Variation 1> In the first and second embodiments, basically, examples are given in which the vehicle interior abnormality detection device 1 and the vehicle interior abnormality detection device 1A operate when predetermined conditions are satisfied.

[0131] However, for example, the following function can also be set: when the driver wants to complete a short task without waking up a sleeping child, or when the driver wants to rest outside without waking up a sleeping passenger while driving at night, the operation of the in-cabin abnormality detection device 1 and the in-cabin abnormality detection device 1A can be stopped according to the judgment of the driver, etc.

[0132] <Variation 2> In the first and second embodiments, it is basically illustrated that when predetermined conditions are met, the in-vehicle abnormality detection device 1 and the in-vehicle abnormality detection device 1A use the real-time sensor signal in the pressure sensor 300 to determine the abnormal state, but a more detailed judgment can also be made based on the level changes of the time series of the sensor signal of each pressure sensor 300.

[0133] For example, even when the pressure sensors 300 arranged in a planar manner in the lower area of ​​the seat surface 11 of the vehicle seat 10 and the upper area or the lower area of ​​the floor carpet 12 near the feet of the passenger all output sensor signals of a certain level, and when the level changes in the time series of the sensor signals of each pressure sensor 300 tend to be similar, it is determined that the level changes are caused by the shaking of the moving vehicle, and it can be detected that the heavy object on the seat surface 11 of the seat 10 and the floor carpet 12 is not the passenger but luggage.

[0134] <Variation 3> In the second embodiment, it is illustrated that when the vehicle door is open and the smart key is not operated, whether the smart key is located in the vehicle cabin is determined. However, it is also possible to maintain information related to the possession of a digital key for passengers who may be driving in advance, and determine whether the vehicle door is opened by either the smart key or the smartphone.

[0135] It should be noted that the in-vehicle abnormality detection device 1 or 1A of the present invention can be implemented by recording the processing of the control unit 100 or the determination unit 130 or 130A or the abnormality detection unit 140 or 140A within the control unit 100 on a recording medium readable by a computer system, and causing the control unit 100 or the determination unit 130 or 130A or the abnormality detection unit 140 or 140A within the control unit 100 to read and execute the program recorded on the recording medium. The computer system herein includes hardware such as an operating system and / or peripheral devices.

[0136] Furthermore, when utilizing the WWW (World Wide Web) system, the term "computer system" also includes a homepage provision environment (or display environment). Furthermore, the program described above may be transmitted from a computer system storing the program on a storage device, etc., to another computer system via a transmission medium or transmission waves in the transmission medium. Here, the "transmission medium" that transmits the program refers to a medium capable of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.

[0137] Furthermore, the program may be a program for realizing a part of the above functions, or may be a so-called differential file (differential program) that can realize the above functions by combining it with a program already recorded in the computer system.

[0138] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but as long as the main purpose of the present invention is included, all in-vehicle abnormality detection devices that can be implemented by those skilled in the art based on appropriate design changes on the basis of the above-mentioned in-vehicle abnormality detection device as an embodiment of the present invention also fall within the technical scope of the present invention.

[0139] Within the scope of the concept of the present invention, those skilled in the art can conceive of various changes and modifications, and these changes and modifications also belong to the technical scope of the present invention.

[0140] For example, embodiments obtained by those skilled in the art by appropriately adding, deleting or changing the design of the above-mentioned embodiments, or by adding, omitting or changing the conditions of the processes are included in the technical scope of the present invention as long as they have the gist of the present invention.

[0141] In addition, regarding other effects brought about by the method described in this embodiment, the effects that are clear from the description of this specification or the effects that can be appropriately thought of by those skilled in the art can naturally be understood as the effects brought about by the present invention.

[0142] Various inventions can be formed by appropriately combining the plurality of constituent elements disclosed in the above-described embodiments.

[0143] For example, some components may be deleted from all the components described in the embodiment.

[0144] Furthermore, constituent elements in different embodiments may be appropriately combined.

Claims

1. A vehicle compartment abnormality detection device, characterized in that: have: a sensor signal processing unit which inputs a sensor signal from the pressure sensor group; a comparing unit that compares a level of the sensor signal input from the sensor signal processing unit with a predetermined threshold value; a determination unit that is activated when a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is input from the comparison unit while the vehicle drive system is stopped, and at least determines whether a key is present in the vehicle interior; as well as An abnormality detection unit is started when the driving system of the vehicle is stopped and a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is input from the comparison unit, and detects an abnormality in the vehicle cabin based on the determination result of the determination unit when there is no key in the vehicle cabin.

2. The vehicle compartment abnormality detection device according to claim 1, characterized in that: The predetermined threshold value is used to exclude the weight of the child seat or the youth seat when the child seat or the youth seat is installed on the seat, and the predetermined threshold value can be set by the vehicle occupant.

3. The vehicle compartment abnormality detection device according to claim 1, characterized in that: The determination unit determines whether the door locks of the vehicle are locked or unlocked, and the abnormality detection unit detects that a passenger has been left behind when the door locks of the vehicle are locked and there is no key in the vehicle compartment based on the determination result of the determination unit.

4. The vehicle compartment abnormality detection device according to claim 1, characterized in that: The determination unit determines whether the door locks of the vehicle are locked or unlocked, and the abnormality detection unit detects intrusion by a third party when the door locks of the vehicle are unlocked and there is no key in the vehicle compartment based on the determination result of the determination unit.

5. The vehicle compartment abnormality detection device according to claim 3 or 4, characterized in that: The vehicle interior abnormality detection device includes a notification unit for notifying the interior and exterior of the vehicle interior of an abnormality state. The notification unit operates when the abnormality detection unit detects an abnormal state.

6. A vehicle compartment abnormality detection device, characterized in that: Equipped with pressure sensor group and controller, The controller includes one or more processors and one or more memories communicatively connected to the one or more processors. The one or more processors input sensor signals from the pressure sensor group, The one or more processors compare the input sensor signal level with a predetermined threshold value, When a comparison result indicating that the sensor signal level exceeds the predetermined threshold value is inputted while the vehicle drive system is stopped, the vehicle drive system is started, and at least whether a key is present in the vehicle cabin is determined. According to the determination result, when there is no key in the vehicle compartment, abnormality in the vehicle compartment is detected.

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