Alarm control device

Abstract

To activate an alarm appropriately.SOLUTION: An alarm control device does not cause an alarm device to activate an alarm if the alarm device is enabled, an authenticated key is inside a vehicle (step S10: YES), and a door is unlocked from inside the vehicle without using the authenticated key (step S12: YES).SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an alarm control device. [Background technology]

[0002] Patent Document 1 describes an alarm control device that activates an alarm when a vehicle door is unlocked without using a remote key after the door has been locked using the remote key. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 61-237778 Summary of the Invention [Problem to be solved by the invention]

[0004] The alarm control device described in Patent Document 1 would activate the alarm device even if the vehicle door was locked using a remote key and then the vehicle user unlocked the vehicle door using the door key while still holding the remote key. [Means for solving the problem]

[0005] An alarm control device for solving the above problem is an alarm control device that controls an alarm device that activates an alarm when a vehicle door is unlocked so that the alarm device transitions to an enabled state when the door is locked using an authenticated key, and transitions to an disabled state when the door is unlocked using the authenticated key, and when the alarm device is in an enabled state and the authenticated key is inside the vehicle, the alarm control device does not activate an alarm when the door is unlocked from inside the vehicle without using the authenticated key. [Effects of the Invention]

[0006] An alarm can be preferably activated. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a block diagram showing the electrical configuration of the alarm control device. [Figure 2] FIG. 2 is a flowchart showing the flow of the unlocking alarm control process. [Figure 3] FIG. 3 is a flowchart showing the flow of the unlocking method determination process. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) A first embodiment of the alarm control device will be described below with reference to FIGS. An alarm control device for controlling an alarm device is composed of a processor, a storage, and a memory. The storage stores a program for controlling the alarm device. The processor controls the alarm device by executing the program based on information stored in the memory.

[0009] <Electrical configuration of alarm control device> As shown in FIG. 1, the alarm control device 10 is electrically connected to the alarm device 11. The alarm device 11 is a device that activates an alarm. For example, the alarm is sounding a buzzer. The alarm device 11 can transition between an enabled state in which the alarm can be activated and an disabled state in which the alarm cannot be activated. The alarm control device 10 can transition the alarm device 11 from the disabled state to the enabled state. The alarm control device 10 can transition the alarm device 11 from the enabled state to the disabled state. The alarm control device 10 can cause the alarm device 11 to activate an alarm.

[0010] The alarm control device 10 is electrically connected to a door 12 of a vehicle. The alarm control device 10 can acquire an opening amount signal from the door 12, which can recognize the opening amount of a window provided in the door 12. For example, the opening amount signal is output from the door 12 when the opening amount of the window of the door 12 changes. The window of the door 12 is opened and closed by a motor provided in the door 12. The motor of the door 12 is activated by operating an opening / closing switch provided in the door 12. The alarm control device 10 can acquire a locking signal from the door 12, which can recognize whether the door 12 is locked or not. Locking and unlocking the door 12 means locking and unlocking the door lock provided in the door 12. In this specification, the term "unlocking" refers to unlocking the door 12 by a legitimate method. On the other hand, the term "unlocking" includes unlocking the door 12 by an unauthorized method. The door 12 is locked and unlocked by operating a lock / unlock switch provided on the door 12. For example, the lock / unlock switch is provided on the door 12 so that it can be operated from inside the vehicle. Locking and unlocking the door 12 by operating the lock / unlock switch from inside the vehicle is locking and unlocking the door 12 in a normal manner.

[0011] The alarm control device 10 is electrically connected to an authenticated key 13 for locking and unlocking the door 12. The authenticated key 13 is a key that has been authenticated by a verification control device provided in the vehicle. For example, the verification control device performs ID verification of the authenticated key 13 by short-range radio (communication distance: several meters). The authenticated key 13 can lock and unlock the door 12 by short-range radio. Locking and unlocking the door 12 using the authenticated key 13 means locking and unlocking the door 12 by a legitimate method.

[0012] For example, the alarm control device 10 can acquire the result of ID matching from the matching control device. The alarm control device 10 can identify the authenticated key 13 based on the result of ID matching acquired from the matching control device. The alarm control device 10 can acquire a periodic signal via short-range radio from the authenticated key 13. For example, the authenticated key 13 outputs a periodic signal at a specified cycle. For example, the alarm control device 10 is configured to include an antenna for acquiring the signal via short-range radio from the authenticated key 13. For example, when the authenticated key 13 is inside the vehicle, the alarm control device 10 can acquire a signal via short-range radio from the authenticated key 13.

[0013] The alarm control device 10 is electrically connected to a camera 14. The camera 14 can capture images of the surroundings of the vehicle. The alarm control device 10 can obtain an image of the surroundings of the vehicle captured using the camera 14 by acquiring an image signal from the camera 14. For example, the camera 14 is installed inside the vehicle. In other words, the surrounding image is an image taken through the window of the door 12.

[0014] <Processing performed by the alarm control device when the door is locked or unlocked> The process executed by the alarm control device 10 when the door 12 is locked or unlocked will now be described.

[0015] First, the process of locking and unlocking the door 12 using the authenticated key 13 will be described. The alarm control device 10 transitions the alarm device 11 to an enabled state when the door 12 is locked using the authenticated key 13. For example, the alarm control device 10 determines whether the door 12 is locked using the authenticated key 13 based on a locking signal. The alarm control device 10 transitions the alarm device 11 to a disabled state when the door 12 is unlocked using the authenticated key 13. For example, the alarm control device 10 determines whether the door 12 is unlocked using the authenticated key 13 based on a locking signal.

[0016] The process of locking and unlocking the door 12 without using the authenticated key 13 will be described. The alarm control device 10 does not transition the alarm device 11 to an enabled state when the door 12 is locked without using the authenticated key 13. The door 12 can be locked without using the authenticated key 13 by operating the lock / unlock switch of the door 12. When the door 12 is unlocked without using the authenticated key 13, the alarm control device 10 does not activate an alarm if the alarm device 11 is in an disabled state.

[0017] An unlocking alarm control process that is executed when the door 12 is unlocked without using the authenticated key 13 and the alarm device 11 is in an enabled state will be described. 2, in the unlocking alarm control process, the alarm control device 10 determines whether or not the authenticated key 13 is present inside the vehicle (step S10). For example, when the alarm control device 10 acquires a periodic signal from the authenticated key 13, it determines that the authenticated key 13 is present inside the vehicle.

[0018] If the authenticated key 13 is present inside the vehicle (step S10: YES), the alarm control device 10 executes an unlocking method determination process. The unlocking method determination process is a process for determining whether the door 12 has been unlocked from inside the vehicle or from outside the vehicle.

[0019] As shown in FIG. 3, in the unlocking method determination process, the alarm control device 10 determines whether the opening amount of the window of the door 12 is less than a predetermined amount based on the opening amount signal (step S20). The alarm control device 10 determines that the opening amount of the window of the door 12 is less than the predetermined amount when the window of the door 12 is not open. On the other hand, the alarm control device 10 determines that the opening amount of the window of the door 12 is not less than the predetermined amount when the window of the door 12 is open. For example, the predetermined amount may be an opening amount that allows an instrument to be inserted from outside the vehicle to operate the lock / unlock switch of the door 12. Inserting an instrument from outside the vehicle and operating the lock / unlock switch from outside the vehicle to lock and unlock the door 12 is not locking and unlocking the door 12 by a legitimate method.

[0020] If the opening amount of the window of the door 12 is less than a predetermined amount (step S20: YES), the alarm control device 10 acquires a peripheral image of the vehicle captured by the camera 14 (step S21). The alarm control device 10 determines whether the peripheral image is normal or not (step S22). For example, the alarm control device 10 determines whether the peripheral image is normal or not using a trained image recognition model that has been machine-learned in advance. The alarm control device 10 determines from the peripheral image using the image recognition model whether the door 12 has been unlocked by an unauthorized method. Then, based on the determination result, the alarm control device 10 determines whether the peripheral image is normal or not. For example, if the alarm control device 10 determines that the door 12 has been unlocked from outside the vehicle based on the peripheral image, the alarm control device 10 determines that the peripheral image is not normal.

[0021] If the peripheral image is normal (step S22: YES), the alarm control device 10 determines that the door 12 has been unlocked from inside the vehicle and ends the unlocking method determination process. On the other hand, if the window of the door 12 has been opened a predetermined amount or more (step S20: NO) or if the peripheral image is not normal (step S22: NO), the alarm control device 10 determines that the door 12 has been unlocked from outside the vehicle and ends the unlocking method determination process.

[0022] Returning to the explanation of the unlocking alarm control process, as shown in Fig. 2, the alarm control device 10 determines whether the door 12 has been unlocked from inside the vehicle as a result of the unlocking method determination process (step S12). If it is determined that the door 12 has been unlocked from inside the vehicle (step S12: YES), the alarm control device 10 transitions the alarm device 11 to a disabled state. On the other hand, if there is no authenticated key 13 inside the vehicle (step S10: NO) and it is determined that the door 12 has been unlocked from outside the vehicle (step S12: NO), the alarm control device 10 causes the alarm device 11 to activate an alarm.

[0023] <Operation of this embodiment> The operation of this embodiment will be described. The alarm control device 10 transitions the alarm device 11 to an enabled state when the door 12 is locked using the authenticated key 13. The alarm control device 10 also transitions the alarm device 11 to an disabled state when the door 12 is unlocked using the authenticated key 13. The alarm control device 10 activates the alarm device 11 (step S14) when the door 12 is unlocked without using the authenticated key 13 while the alarm device 11 is enabled and the authenticated key 13 is not inside the vehicle (step S10: NO). The alarm control device 10 also activates the alarm device 11 (step S14) when the door 12 is unlocked from outside the vehicle without using the authenticated key 13 while the alarm device 11 is enabled and the authenticated key 13 is inside the vehicle (step S10: YES).

[0024] On the other hand, when the door 12 is unlocked from inside the vehicle (step S12: YES) while the alarm device 11 is in the enabled state and the authenticated key 13 is inside the vehicle (step S10: YES), the alarm control device 10 transitions the alarm device 11 to the disabled state (step S13). In other words, when the door 12 is unlocked from inside the vehicle (step S12: YES) while the alarm device 11 is in the enabled state and the authenticated key 13 is inside the vehicle (step S10: YES), the alarm control device 10 does not cause the alarm device 11 to activate an alarm.

[0025] If the door 12 is unlocked with the vehicle window open by a predetermined amount or more (step S20: NO), the alarm control device 10 determines that the door 12 has been unlocked from outside the vehicle without using the authenticated key 13 (step S24). Furthermore, if the door 12 is unlocked, the alarm control device 10 acquires an image of the surroundings of the vehicle (step S21). Based on the image, the alarm control device 10 determines whether the door 12 has been unlocked from outside the vehicle without using the authenticated key 13 (step S22).

[0026] <Effects of this embodiment> The effects of this embodiment will be described. (1) After the alarm device 11 is enabled by locking the door 12 using the authenticated key 13, if the door 12 is unlocked from inside the vehicle without using the authenticated key 13 while the authenticated key 13 is present inside the vehicle, the alarm will not be activated. For example, when a user takes a nap inside the vehicle, the door 12 may be locked for security purposes. For security purposes, the alarm device 11 may be activated by locking the door 12 using the authenticated key 13. In such a situation, if the user unlocks the door 12 by operating the lock / unlock switch of the door 12, the alarm device 11 will not be activated, thereby preventing the user from feeling inconvenienced. In other words, the alarm can be activated appropriately.

[0027] (2) On the other hand, if the door 12 is unlocked from outside the vehicle even when the authenticated key 13 is inside the vehicle, the alarm device 11 is caused to sound an alarm. For example, if the door 12 is unlocked from outside the vehicle in the above situation, the security can be improved by causing the alarm device 11 to sound an alarm. In other words, the alarm can be sounded appropriately.

[0028] (3) For example, if the window of the door 12 is open by more than a predetermined amount, it is possible to operate the lock / unlock switch of the door 12 by inserting an implement or a hand through the opening. Therefore, in such a situation, it is determined that the door 12 has been unlocked from outside the vehicle without using the authenticated key 13, and the alarm device 11 is caused to sound an alarm, thereby improving security. In other words, the alarm can be sounded appropriately.

[0029] (4) For example, if an attempt is made to unlock the door 12 from outside the vehicle without using the authenticated key 13, the attempt is captured in an image of the area around the vehicle. Therefore, when the door 12 is unlocked, the system can determine whether the door 12 was unlocked from outside the vehicle without using the authenticated key 13 based on the image, thereby improving security while minimizing user annoyance. In other words, the alarm can be activated appropriately.

[0030] <Example of change> The above embodiment may be modified as follows: The above embodiment and each of the following modifications may be combined with each other within the scope of technical compatibility.

[0031] The alarm control device 10 may determine that the door 12 has been unlocked from inside the vehicle when the door 12 is unlocked without using the authenticated key 13 while the authenticated key 13 is inside the vehicle. In other words, the alarm control device 10 may not cause the alarm device 11 to activate an alarm when the door 12 is unlocked without using the authenticated key 13 while the authenticated key 13 is inside the vehicle. This makes it possible to prevent the control of the alarm control device 10 from becoming complicated.

[0032] In the unlocking method determination process, the alarm control device 10 may execute the process of step S21 without executing the process of step S20. In other words, the alarm control device 10 does not have to determine whether the door 12 has been unlocked from inside the vehicle based on the opening amount of the window of the door 12. This makes it possible to prevent the control of the alarm control device 10 from becoming complicated.

[0033] In the unlocking method determination process, the alarm control device 10 may execute the process of step S23 without executing the process of step S22. In other words, the alarm control device 10 does not have to determine whether the door 12 has been unlocked from inside the vehicle based on the image of the vehicle's surroundings. This makes it possible to prevent the control of the alarm control device 10 from becoming complicated.

[0034] The alarm control device 10 may be capable of determining that the door 12 has been unlocked from outside the vehicle by using another method in addition to or instead of the method described in the above embodiment. The alarm control device 10 may terminate the unlocking alarm control process without executing step S13. In other words, even if the door 12 is unlocked by a legitimate method, if this is done without using the authenticated key 13, the alarm control device 10 may keep the alarm device 11 enabled but not activate the alarm. For example, when a user is taking a nap inside the vehicle, the user temporarily unlocks the door 12, and then the alarm does not activate for a certain period of time. In this case, the alarm device 11 activates after the certain period of time has elapsed, thereby improving security. In other words, the alarm can be activated appropriately.

[0035] The door 12 may be able to be locked and unlocked using an authenticated key different from the authenticated key 13. For example, the authenticated key different from the authenticated key 13 is a spare key having a different ID from that of the authenticated key 13. In this case, the alarm control device 10 transitions the alarm device 11 to an enabled state when the door 12 is locked using the spare key. The alarm control device 10 also transitions the alarm device 11 to a disabled state when the door 12 is unlocked using the spare key. For example, the alarm control device 10 may make a positive determination in step S10 of the unlocking alarm control process if at least one of the authenticated key 13 and the spare key is present inside the vehicle. For example, the alarm control device 10 may make a positive determination in step S10 of the unlocking alarm control process if the key used to transition the alarm device 11 to an enabled state, either the authenticated key 13 or the spare key, is present inside the vehicle. In this case, the alarm control device 10 may make a positive judgment in step S12 of the unlocking alarm control processing even if the door 12 is unlocked with a key other than the key used to transition the alarm device 11 to the enabled state. [Explanation of symbols]

[0036] 10... alarm control device, 11... alarm device, 12... door, 13... authenticated key, 14... camera

Claims

1. An alarm control device that activates an alarm when a vehicle door is unlocked, controls the alarm device so that the alarm device transitions to an enabled state when the door is locked using an authenticated key, and transitions to an disabled state when the door is unlocked using the authenticated key, When the alarm device is in an enabled state and the authenticated key is in the vehicle interior, if the door is unlocked from inside the vehicle without using the authenticated key, the alarm device is not caused to activate an alarm. Alarm control device.

2. When the door is unlocked from outside the vehicle without using the authenticated key while the alarm device is in an enabled state, the alarm device is caused to issue an alarm. The alarm control device according to claim 1 .

3. When the door is unlocked with the window of the vehicle open by a predetermined amount or more, it is determined that the door has been unlocked from outside the vehicle without using the authenticated key. The alarm control device according to claim 2 .

4. When the door is unlocked, an image of the surroundings of the vehicle is acquired; Based on the image, it is determined whether the door has been unlocked from outside the vehicle without using the authenticated key. The alarm control device according to claim 2 or 3.

Images