JP4816433B2 - Alarm device - Google Patents

Description

  The present invention relates to an alarm device that issues an alarm when an abnormality is detected. In particular, the present invention is suitable for being applied to an alarm device that issues an alarm when a vehicle abnormality is detected.

  Conventionally, as an example of an alarm device that issues an alarm when an abnormality is detected, there has been a vehicle theft alarm device that detects a vehicle theft and issues an alarm as disclosed in Patent Document 1.

The vehicle burglar alarm device disclosed in Patent Document 1 shifts to a non-alarm standby state on the condition that the door is unlocked by the keyless entry system in order for the driver to use the vehicle. On the other hand, in order to issue an alarm when an abnormality is detected, such as forcibly opening and closing the door, all doors are closed and the door is locked by the keyless entry system. Transition to the alarm standby state to monitor the status of
JP 2000-85535 A

  However, the vehicle alarm device disclosed in Patent Document 1 has a problem that the door cannot be unlocked without issuing an alarm when the battery of the portable device of the keyless entry system runs out.

  It is also conceivable to set an alarm standby state and a non-alarm standby state by locking and unlocking the door with a mechanical key. However, in this case, when the door is locked, an alarm standby state is surely caused, so that there is a problem that a false alarm is generated when an abnormality detection device for detecting an abnormality breaks down.

  The present invention has been made in view of the above problems, and can lock a door without making a false alarm, and can also unlock the door without issuing a warning even when the battery of the portable device has run out. The purpose is to provide.

In order to achieve the above object, the alarm device according to claim 1 is provided with a security object having an opening / closing mechanism that can be locked and unlocked by a mechanical key and locked and unlocked by a signal transmitted from a portable device. An alarm device that generates an alarm when detected, an alarm means for generating an alarm, an abnormality detection means for detecting an abnormality of a security object, and whether the opening / closing mechanism is locked or unlocked by a mechanical key, An alarm standby state in which an alarm means generates an alarm when an abnormality is detected by an abnormality detection means when the opening / closing mechanism is locked by a mechanical key, and a determination means that determines whether the signal is transmitted using a signal transmitted from the machine If the opening / closing mechanism is locked using a signal sent from a portable device without setting, the alarm standby state is set and the alarm standby state is set. If the opening and closing by at least mechanical key mechanism is unlocked when you have set comprises setting means for canceling the setting of the alarm wait state, the portable device can direct lock signal and unlock instructs the lock opening and closing mechanism The setting means does not set the alarm standby state when the lock signal is transmitted from the portable device while the opening / closing mechanism is locked by the mechanical key. is there.

  Thus, although the alarm standby state is set when the opening / closing mechanism is locked based on the signal transmitted from the portable device, the alarm standby state is not set when the opening / closing mechanism is locked by the mechanical key. The opening / closing mechanism can be locked without false alarms when the detecting means or the like is out of order. Furthermore, when the alarm standby state is set, if the opening / closing mechanism is unlocked by at least the mechanical key, the alarm standby state is canceled by releasing the alarm standby state setting so that an alarm is issued even if the portable device battery is dead The door can be unlocked without

In addition, when the opening / closing mechanism is locked by the mechanical key as described above, it is generated by locking the opening / closing mechanism by not setting the alarm standby state even when a lock signal is transmitted from the portable device. False alarms can be further suppressed.

In order to achieve the above-mentioned object, the alarm device according to claim 2 has a security object having an opening / closing mechanism that can be locked and unlocked by a mechanical key and locked and unlocked by a signal transmitted from a portable device. An alarm device that generates an alarm when detected, an alarm means for generating an alarm, an abnormality detection means for detecting an abnormality of a security object, and whether the opening / closing mechanism is locked or unlocked by a mechanical key, An alarm standby state in which an alarm means generates an alarm when an abnormality is detected by an abnormality detection means when the opening / closing mechanism is locked by a mechanical key, and a determination means that determines whether the signal is transmitted using a signal transmitted from the machine If the opening / closing mechanism is locked using a signal sent from a portable device without setting, the alarm standby state is set and the alarm standby state is set. If the opening and closing by at least mechanical key mechanism is unlocked when being set and a setting means for releasing the setting of the alarm wait state, the security object is a request for the switch and the portable device operated by the user The portable device includes a communication unit that transmits a signal, the portable device transmits a response signal in response to the request signal, and the opening / closing mechanism is locked when the response signal is transmitted from the portable device and the switch is operated. The setting means is characterized in that the alarm standby state is not set when a response signal is transmitted from the portable device in a state where the opening / closing mechanism is locked by the mechanical key and the switch is operated. is there.

Thus, although the alarm standby state is set when the opening / closing mechanism is locked based on the signal transmitted from the portable device, the alarm standby state is not set when the opening / closing mechanism is locked by the mechanical key. The opening / closing mechanism can be locked without false alarms when the detecting means or the like is out of order. Furthermore, when the alarm standby state is set, if the opening / closing mechanism is unlocked by at least the mechanical key, the alarm standby state is canceled by releasing the alarm standby state setting so that an alarm is issued even if the portable device battery is dead The door can be unlocked without Moreover, in this way, when a state where the opening and closing mechanism is locked by the mechanical key, by the signal from the portable device is transmitted, and so that the switch does not set the alarm standby state be operated, the opening and closing mechanism It is possible to further suppress false alarms caused by locking the.

Further, as shown in claim 3 , the security object can be applied to the vehicle, and the opening / closing mechanism can be applied to the door of the vehicle.

According to a fourth aspect of the present invention, the abnormality detection means may include a theft detection means for detecting a vehicle theft. By doing so, theft of the vehicle can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an alarm device according to an embodiment of the present invention. In the present embodiment, the alarm device of the present invention will be described using an example in which the alarm device is applied to a vehicle antitheft device.

  As shown in FIG. 1, the alarm device 10 according to the present embodiment includes key cylinders 2a to 2d, key cylinders 2a to 2d, in which mechanical keys 20c are inserted into the vehicle doors 1a to 1d provided on the vehicle (security object). Key switches 3a to 3d provided in 2d, door ECUs 5a to 5d electrically connected to the key switches 3a to 3d, door lock motors 4a to 4d electrically connected to the door ECUs 5a to 5d, and the like. The alarm device 10 includes an alarm ECU 6 that is electrically connected to the door ECUs 5a to 5d, a wireless tuner 7 that is electrically connected to the alarm ECU 6, a theft detection device 8, and an alarm 9.

  The vehicle doors 1a to 1d (opening / closing mechanism) can be locked and unlocked by the portable device 20 (so-called wireless key). The portable device 20 includes a microcomputer 20a, a transmitter 20b, a mechanical key 20c, a battery (not shown), and the like. The portable device 20 can lock and unlock the vehicle doors 1 a to 1 d by inserting the mechanical key 20 c into the key cylinders 2 a to 2 d and rotate the mechanical key 20 c, and a lock provided on the portable device 20. When a button or an unlock button (not shown) is operated, a lock signal or an unlock signal is transmitted from the transmitter 20b to the wireless tuner 7 based on an instruction from the microcomputer 20a, thereby locking or unlocking the vehicle doors 1a to 1d. It can be carried out. The lock signal and the unlock signal output from the portable device 20 to the wireless tuner 7 are output to the door ECUs 5a to 5d via the alarm ECU 6.

  The key switches 3a to 3d of the alarm device 10 are switches that detect whether the vehicle doors 1a to 1d are locked or unlocked based on the rotational operation direction (left and right) of the mechanical key 20c. Then, the key switches 3a to 3d output signals indicating whether the vehicle doors 1a to 1d are locked or unlocked by the mechanical key 20c to the door ECUs 5a to 5d.

  The door ECUs 5a to 5d of the alarm device 10 drive or lock the door lock motors 4a to 4d based on signals from the wireless tuner 7 (alarm ECU 6) and signals from the key switches 3a to 3d. Further, the door ECUs 5a to 5d use the signals transmitted from the portable device 20 to check whether the vehicle doors 1a to 1d are locked or unlocked, or whether the vehicle doors 1a to 1d are locked or unlocked by the mechanical key 20c. The signal shown is output to the alarm ECU 6.

  The alarm ECU 6 includes a microcomputer including a CPU, a ROM, a RAM, and the like and peripheral circuits. The alarm ECU 6 uses the signals transmitted from the portable device 20 based on signals from the door ECUs 5a to 5d to lock or unlock the vehicle doors 1a to 1d, or causes the vehicle doors 1a to 1d to be locked by the mechanical key 20c. Judge whether locked or unlocked. When an abnormality is detected by the theft detection device 8 described later, an alarm standby state (hereinafter also referred to as an alarm set) for generating an alarm with an alarm 9 is set or the setting is canceled (hereinafter referred to as an alarm unset). And so on.

  The theft detection device 8 corresponds to the abnormality detection means and theft detection means of the present invention, and includes an intrusion sensor 8a, a glass break sensor 8b, an inclination sensor 8c, a door courtesy sensor 8d, and the like. The intrusion sensor 8a detects the intrusion of a person into the vehicle by infrared detection or ultrasonic detection, and outputs a detection signal to the alarm ECU 6 at the time of detection. The glass break sensor 8b detects a glass break by detecting sound when a window glass or the like is broken by a microphone, an ultrasonic sensor or the like, and outputs a detection signal to the alarm ECU 6 at the time of detection. The tilt sensor 8c detects a capacitance change (electric signal) between the movable electrode and the fixed electrode according to the tilted vehicle angle, and outputs a detection signal including the tilt angle to the alarm ECU 6. The door courtesy sensor 8d detects the opening and closing of the vehicle doors 1a to 1d, and outputs a detection signal to the alarm ECU 6 when the vehicle doors 1a to 1d are opened or pry using the key combination. These intrusion sensor 8a, glass break sensor 8b, inclination sensor 8c, and door courtesy sensor 8d are installed at appropriate positions in the vehicle. The theft detection device 8 is not limited to the above sensor.

  The alarm 9 corresponds to the alarm means of the present invention, and includes a siren 9a, a hazard lamp 9b, a room lamp 9c, and the like. The siren 9a, the hazard lamp 9b, and the room lamp 9c generate an alarm by generating an alarm sound at the time of theft or by turning on or blinking the lamp based on an instruction from the alarm ECU 6. Further, the siren 9a, the hazard lamp 9b, the room lamp 9c, etc. preferably have a built-in battery so that the alarm is continued even when the vehicle battery is removed. The alarm 9 is not limited to the siren 9a, the hazard lamp 9b, and the room lamp 9c.

  Here, the processing operation of the alarm device in the present embodiment will be described. FIG. 2 is a flowchart showing the processing operation of the alarm device according to the embodiment of the present invention. Note that the flow shown in FIG. 2 is repeatedly executed at predetermined intervals while power is supplied to the alarm device.

  In step S10, the alarm ECU 6 determines whether or not the vehicle doors 1a to 1d (all doors) are locked based on signals from the door ECUs 5a to 5d. If it is determined that the vehicle doors 1a to 1d are locked, the process proceeds to step S20. If it is not determined that it has been performed, the process proceeds to step S50.

  First, if it is not determined in step S10 that the vehicle doors 1a to 1d (all doors) are locked, in step S50, the alarm ECU 6 determines whether the vehicle doors 1a to 1d are based on signals from the door ECUs 5a to 5d. It is determined whether or not 1d (all doors) is unlocked (determination means). If it is determined that the door is unlocked, the process proceeds to step S60. If it is not determined that the door is unlocked, the process returns to step S10.

  In step S60, the alarm ECU 6 determines whether the wireless key is unlocked or the mechanical key is unlocked based on signals from the door ECUs 5a to 5d. That is, the alarm ECU 6 determines whether the vehicle doors 1a to 1d are unlocked using the signal transmitted from the portable device 20, or whether the vehicle doors 1a to 1d are unlocked using the mechanical key 20c, and the vehicle door using the mechanical key 20c. When it determines with 1a-1d having been unlocked, it progresses to step S70, and when it determines with the vehicle doors 1a-1d being unlocked using the signal transmitted from the portable device 20, it progresses to step S80.

  In step S70, if the alarm ECU 6 is in the alarm set state, the alarm ECU 6 cancels the alarm and returns to step S10. That is, when the vehicle doors 1a to 1d are unlocked by the mechanical key 20c, the alarm ECU 6 cancels the setting of the alarm standby state in which an alarm is generated by the alarm 9 when an abnormality is detected by the theft detection device 8 (setting) means). Also in step S80, if the alarm ECU 6 is in the alarm set state, the alarm ECU 6 unsets the alarm and returns to step S10. That is, the alarm ECU 6 uses the signal transmitted from the portable device 20 to wait for an alarm that causes the alarm 9 to generate an alarm when an abnormality is detected by the theft detection device 8 even when the vehicle doors 1a to 1d are unlocked. The state setting is canceled (setting means). As described above, in the alarm device 10 according to the present embodiment, even when the vehicle doors 1a to 1d are unlocked using the signal transmitted from the portable device 20, the vehicle doors 1a to 1d are unlocked by the mechanical key 20c. Unset the alarm even if

  Here, for example, consider a system in which an alarm cannot be unset by the mechanical key 20c. In such a system, when the battery of the portable device 20 is exhausted in the alarm set, if the vehicle key 1c is used to unlock the vehicle doors 1a to 1d, the door courtesy sensor 8d erroneously detects that the vehicle has been stolen and the siren 9a is detected. The alarm sound is generated from the alarm, the hazard lamp 9b and the room lamp 9c are lit or blinked. However, in the present embodiment, since the alarm is reset even when the vehicle doors 1a to 1d are unlocked by the mechanical key 20c, the alarm sound is output from the siren 9a even when the battery of the portable device 20 is exhausted. The vehicle doors 1a to 1d can be unlocked without generating an alarm such as the occurrence of a warning or the lighting or blinking of the hazard lamp 9b or the room lamp 9c.

  On the other hand, if it is determined in step S10 that the vehicle doors 1a to 1d (all doors) are locked, in step S20, the alarm ECU 6 is locked by the wireless key based on the signals from the door ECUs 5a to 5d. It is determined whether it is locked by the mechanical key (determination means). That is, the alarm ECU 6 determines whether the vehicle doors 1a to 1d are locked using the signal transmitted from the portable device 20, or whether the vehicle doors 1a to 1d are locked by the mechanical key 20c, and the vehicle doors 1a to 1d by the mechanical key 20c. If it is determined that 1d is locked, the process proceeds to step S30. If it is determined that the vehicle doors 1a to 1d are locked using the signal transmitted from the portable device 20, the process proceeds to step S40.

  In step S30, the alarm ECU 6 returns to step S10 without setting an alarm. That is, the alarm ECU 6 does not set an alarm standby state in which an alarm 9 generates an alarm when an abnormality is detected by the theft detection device 8 when the vehicle doors 1a to 1d are locked by the mechanical key 20c (setting means). .

  On the other hand, in step S40, the alarm ECU 6 sets an alarm and returns to step S10. That is, when the vehicle doors 1a to 1d are locked using the signal transmitted from the portable device 20, the alarm ECU 6 is in an alarm standby state in which an alarm is generated by the alarm 9 when an abnormality is detected by the theft detection device 8. Is set (setting means).

  For example, when the alarm standby state can be set by locking the vehicle doors 1a to 1d with the mechanical key 20c, the alarm standby state is surely caused when the door is locked. Therefore, when the theft detection device 8 breaks down, an alarm is always generated (false alarm) when the vehicle doors 1a to 1d are locked. That is, the vehicle doors 1a to 1d could not be locked without setting an alarm.

  However, when the vehicle doors 1a to 1d are locked using the signal transmitted from the portable device 20 as in the present embodiment, the vehicle doors 1a to 1d are locked by the mechanical key 20c although the alarm standby state is set. In such a case, by not setting the alarm standby state, the vehicle doors 1a to 1d can be locked without false alarm when the theft detection device 8 is out of order.

  In the present embodiment, the example using the wireless key as the portable device 20 has been described, but the present invention is not limited to this. For example, the mobile device may be a smart entry key. In this case, the vehicle includes a switch that is operated by the user and a communication unit that transmits a request signal to the portable device. The portable device transmits a response signal in response to the request signal. The vehicle door is locked when a response signal is transmitted from the portable device and the switch is operated. The alarm ECU 6 does not set the alarm standby state when a response signal is transmitted from the portable device while the vehicle door is locked by the mechanical key and the switch is operated.

  Further, in the present embodiment, the alarm device of the present invention has been described by using an example in which the alarm device of the present invention is applied to a vehicle antitheft device. However, the present invention is not limited to this, and is applied to, for example, a house. It is also possible to do.

It is a block diagram which shows schematic structure of the alarm device in embodiment of this invention. It is a flowchart which shows the processing operation of the alarm device in embodiment of this invention.

Explanation of symbols

1a to 1d vehicle door, 2a to 2d key cylinder, 3a to 3d key switch, 4a to 4d door lock motor, 5a to 5d door ECU, 6 alarm ECU, 7 wireless tuner, 8 theft detection device, 8a intrusion sensor, 8b glass Crack sensor, 8c Tilt sensor, 8d Door courtesy sensor, 9 Alarm, 9a Siren, 9b Hazard lamp, 9c Room lamp, 10 Alarm device, 20 Portable device, 20a Microcomputer, 20b Transmitter, 20c Mechanical key

Claims (4)

An alarm device that generates an alarm when an abnormality of a security object having an opening / closing mechanism that can be locked and unlocked by a mechanical key is locked and unlocked and a signal transmitted from a portable device is unlocked,
Alarm means for generating the alarm;
An abnormality detection means for detecting an abnormality of the security object;
Determining means for determining whether the opening and closing mechanism is locked or unlocked by the mechanical key or using a signal transmitted from the portable device;
When the opening / closing mechanism is locked by the mechanical key, when an abnormality is detected by the abnormality detecting means, an alarm standby state for generating an alarm by the alarm means is not set, and a signal transmitted from the portable device is used. When the opening / closing mechanism is locked, the alarm standby state is set, and when the alarm standby state is set, at least when the opening / closing mechanism is unlocked by the mechanical key, the alarm standby state is set. And setting means for releasing ,
The portable device transmits a lock signal for instructing locking of the opening / closing mechanism and an unlock signal for instructing unlocking, and the setting means is configured such that the opening / closing mechanism is locked by the mechanical key while the opening / closing mechanism is locked. When the lock signal is transmitted from a machine, the alarm standby state is not set . An alarm device that generates an alarm when an abnormality of a security object having an opening / closing mechanism that can be locked and unlocked by a mechanical key is locked and unlocked and a signal transmitted from a portable device is unlocked,
Alarm means for generating the alarm;
An abnormality detection means for detecting an abnormality of the security object;
Determining means for determining whether the opening and closing mechanism is locked or unlocked by the mechanical key or using a signal transmitted from the portable device;
When the opening / closing mechanism is locked by the mechanical key, when an abnormality is detected by the abnormality detecting means, an alarm standby state for generating an alarm by the alarm means is not set, and a signal transmitted from the portable device is used. When the opening / closing mechanism is locked, the alarm standby state is set, and when the alarm standby state is set, at least when the opening / closing mechanism is unlocked by the mechanical key, the alarm standby state is set. And setting means for releasing,
The security object includes a switch operated by a user and a communication unit that transmits a request signal to the portable device, and the portable device transmits a response signal in response to the request signal, and the opening / closing mechanism Is locked when a response signal is transmitted from the portable device and the switch is operated, and the setting means is operated from the portable device with the opening / closing mechanism locked by the mechanical key. the response signal is sent, and when the switch is operated, alarm device you characterized in that it does not set the alarm standby state. The security object is a vehicle, the open-close mechanism alarm device according to claim 1 or claim 2, characterized in that a door of the vehicle. The abnormality detecting means, an alarm device according to 請 Motomeko 3 you comprising the theft detection means for detecting a theft of the vehicle.

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