JPH1016715A - Car security device and car security system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car security device and a car security system for use in preventing a vehicle from being stolen in which content of abnormal state generated during a time of operation of a car security function (a sensor detected an abnormal state and a time to detect an abnormal state) can be acknowledged more in detail. SOLUTION: In the case that an abnormal state is detected by sensors 24 to 28 when a security function is turned on, a control section 17 stores information about the sensor or time in which the abnormal state is detected in a memory part 14 as security information. After this operation, a user performs a predetermined operation, thereby the control section 17 transmits security information read out of the memory part 14 to another device (an audio system or an Audio/Visual device and the like) having a display section through a bus input/output section 16 and a bus line (a transmission line) 6a. The device received the security information displays this information at the display section in character form.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car security device and a car security system for preventing theft and mischief of an automobile.

[0002]

2. Description of the Related Art Conventionally, as a car security device,
Has a sensor for monitoring the opening and closing of the vehicle door, hood and trunk, and a sensor for detecting the vibration of the vehicle,
When the user turns on the security function, there is a case in which a siren is sounded when the sensor detects an abnormality, and the engine starter is prevented from rotating even when an ignition switch is turned on.

[0003] A car security device is generally operated by a remote control unit (hereinafter, referred to as a remote unit) that sends a signal by radio waves, infrared rays, ultrasonic waves, or the like. Then, the user turns off the security function when driving the vehicle, and after getting off the vehicle, sends a signal to the car security device from outside the vehicle using the remote unit to turn on the security function.

[0004]

By the way, in the conventional car security device, for example, if an abnormality occurs in the vehicle when the security function is on, as described above,
Sounding a siren informs the surroundings of the occurrence of an abnormality, but if the siren is sounded for a certain period of time, the siren stops. For this reason, the user does not notice the abnormality of the vehicle, or cannot know the details of the abnormality (such as what sensor has been activated and when).

[0005] Conventionally, there is also a car security device in which a sensor that detects an abnormality based on a blinking pattern (blinking interval) of an LED (light emitting diode) or the like can be known. However, in this case, the user needs to manually check which sensor has been activated based on the blinking pattern of the LED, which is complicated. Also, in this car security device, the user cannot know the time when the abnormality has occurred.

Accordingly, it is an object of the present invention to provide a car security device and a car security device capable of knowing in more detail the contents of an abnormality that has occurred while the car security device is operating (such as the sensor and time when the abnormality was detected). Is to provide a system.

[0007]

SUMMARY OF THE INVENTION The above-mentioned problems are caused by one or more sensors for detecting the state of each part of the vehicle, sensor monitoring means for monitoring the state of these sensors, and the sensor monitoring means for detecting abnormalities in the sensors. A car security device comprising: a storage unit that stores, as security information, a sensor and a time at which an abnormality is detected when security is detected; and a communication unit that externally outputs the security information stored in the storage unit. I do.

Another object of the present invention is to provide a car security system which is connected to one or a plurality of sensors for detecting the state of each part of a vehicle and, when the sensor detects an abnormality, stores the detected sensor and time as security information. Device, and a display unit capable of displaying characters, connected to the car security device via a cable, and displaying the security information transmitted from the car security device via the cable on the display unit. Audio equipment, audiovisual equipment (A
V device) or an in-vehicle device such as a car navigation device.

In this case, a display unit is provided instead of, or in addition to, the on-vehicle devices, and data can be transmitted and received bidirectionally with the car security device via cordless communication means. And a remote control unit for displaying the security information sent from the car security device via the cordless communication means on the display unit.

In the car security device according to the present invention, when the sensor detects an abnormality in the vehicle, the sensor and the time when the abnormality is detected are stored in the storage means as security information. Then, for example, when a predetermined operation is performed by the user, the security information stored in the storage unit is output to the outside via the communication unit. Therefore, for example, if the device of the present invention is connected to an in-vehicle device such as an audio device, an AV device, or a car navigation device having a liquid crystal display or the like via a cable, a sensor that detects an abnormality in the liquid crystal display or the like and a sensor that detects the abnormality The displayed time can be displayed in characters or the like. Thus, the user can easily know the details of the abnormality that has occurred in the vehicle.

Further, in the car security system of the present invention, the car security device is connected to a vehicle-mounted device such as an audio device, an AV device or a car navigation device having a display capable of displaying characters by, for example, a cable. Then, the sensor and the time at which the abnormality is detected in the car security device are stored as security information, and the security information is transmitted to the audio device, the AV device, the car navigation device, or the like via the cable. In an audio device, an AV device, a car navigation device, or the like, the received security information is displayed on the display unit. Thus, the user can easily know the details of the abnormality that has occurred in the vehicle by looking at the display unit.

The security information may be displayed on a display unit of the remote control unit by using a remote control unit capable of transmitting and receiving data to and from the car security device via the cordless communication means. .

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. (First Embodiment) FIG. 1 is a diagram showing a car security system according to a first embodiment of the present invention. This car security system is configured by combining a plurality of audio units (audio devices) connected via a cable 6 with a car security unit (car security device).

In FIG. 1, reference numeral 1 denotes a head unit having a built-in FM / AM tuner and a cassette player.
The head unit 1 includes, for example, a liquid crystal display unit 1a capable of displaying information of 24 characters and various operation keys (not shown) for operating the system. 2 is a CD that can hold multiple CDs (compact discs)
This is a changer, and the operation keys of the head unit 1 can be used to play or stop a desired CD, and to specify the order of music pieces to be played. Reference numeral 10 denotes a car security unit. Details of the car security unit 10 will be described later. Reference numeral 3 denotes a sound processor unit that applies a sound effect or equalizes (sound quality adjustment) to an audio signal input via the cable 6. Reference numeral 4 denotes an amplifier for amplifying the audio signal output from the sound processor unit 3;
Is a speaker driven by the amplifier 4.

Reference numeral 6 denotes a cable for connecting the units, which is composed of a bus line (communication line) for transmitting digital signals and an audio signal line for transmitting analog audio signals. As shown in FIG. 2A, the bus line 6a of the cable 6 is connected through the inside of each unit UNT (the head unit 1, the CD changer 2, the car security unit 10 and the like), and the bus of each unit UNT. Connected to input / output unit PO. That is, the units UNT can mutually transmit and receive signals via the bus input / output unit PO and the bus line 6a provided for each unit UNT.

On the other hand, as shown in FIG. 2B, the audio signal line 6b is connected to the selector SEL inside the unit UNT.
To output either an audio signal sent from the unit UNT in the preceding stage or an audio signal output from the audio source ADS inside the unit UNT. FIG. 3 is a block diagram showing the car security unit 10 in more detail. In FIG. 3, reference numeral 11 denotes a bidirectional remote unit capable of transmitting and receiving data by radio waves. The remote unit 11 includes a security function on button, a security function off button, a button for locking (locking) and releasing (unlocking) the door of the vehicle, and the like. Further, as shown in FIG. 4, the remote unit 11 includes a display unit 11d capable of displaying alphanumeric characters and time for eight characters. Further, the bidirectional remote unit 11 has a built-in buzzer (not shown).

Note that the bidirectional remote unit 11 may transmit and receive data to and from the car security unit 10 via light (visible light or infrared light) or sound waves (ultrasonic waves). 12 is a remote unit 11
A transmission / reception unit 13 for transmitting and receiving data to and from the operation unit 13 is an operation unit provided with various operation keys. Reference numeral 14 denotes an ROM (Electrically Erasable Programmable Programmable Read Only Memory) for storing a program for realizing functions necessary for the car security device, a RAM for storing various data, and an EEPROM (Electrically Erasable Programmable Register) for registering an ID (Identity) code of a remote unit.
ogramable ROM).
15 is a clock section for measuring time, 16 is a bus line 6
a bus input / output unit that is connected to a and outputs data to the bus line 6a and inputs data from the bus line 6a.

Reference numeral 17 denotes a control unit constituted by a microcomputer, which is connected to the transmission / reception unit 12, operation unit 13, memory unit 14, clock unit 15, and bus input / output unit 16. The control unit 17 monitors the state of various sensors described later, and when the sensor detects an abnormality, writes the sensor and time when the abnormality is detected in the memory unit 14,
Or generate a signal to generate an alarm. 26a,
Reference numerals 27a and 28a denote sensor sensitivity adjustment units. These sensitivity adjustment units 26a, 27a and 28a are connected to a radar sensor 26, an impact sensor 27, a glass break sensor 28, and the like, which will be described later.

Reference numeral 31 denotes an in-vehicle power supply (battery), and power is supplied to the car security unit 10 from the power supply 31. The car security unit 10 can detect the on / off state of the ignition switch 32. Reference numeral 33 denotes a valet switch, which is installed in an inconspicuous place such as under a dashboard. The valley switch 33 is connected to the remote unit 1
It is used when canceling the security function without setting 1. Reference numeral 34 denotes a door lock unit for locking (locking) and releasing (unlocking) the door by the remote unit 11.

Hereinafter, an alarm device and a sensor connected to the car security unit 10 will be described. 21
Is a starter cut relay, which prevents the engine starter from rotating when the car security unit 10 detects an abnormality. Reference numeral 22 denotes a siren drive unit. When the car security unit 10 detects an abnormality, the car security unit 10 drives the siren drive unit 22 to sound a siren to notify the surroundings of the occurrence of the abnormality. Also, 23
Is a headlight drive unit, and when the car security unit 10 detects an abnormality, the headlight drive unit 2
3 is driven to flash the headlights to notify the surroundings of the occurrence of an abnormality.

A door sensor 24 detects opening and closing of the door.
Reference numeral 25 denotes a hood sensor for detecting opening and closing of the hood. These sensors 24 and 25 are constituted by on-off switches, and detect opening and closing of a door or a bonnet by turning on or off a switch. Reference numeral 26 denotes a radar sensor that detects the movement of the vehicle or an object (such as a human) approaching the vehicle by radar waves. Reference numeral 27 denotes an impact sensor that detects an impact applied to the vehicle, and 28 denotes a glass break sensor that detects the impact applied to the glass by sound. These sensors 26, 27, and 28 are sensors that require sensitivity adjustment, and the sensitivity adjustment units 26a, 27a, and 28a described above.
Is connected to the control unit 17 via the.

Various sensors other than these sensors can be connected to the car security unit 10 as needed. Further, the car security unit 10 is connected to another unit such as the head unit 1 by a different wiring from the cable 6 described above,
An alarm can be generated even when another unit is removed. Further, the car security unit 10 can prevent theft of the car security unit 10 itself. That is, if the car security unit 10 is disconnected from the power supply 31 while the security function is on, the car security unit 1
0 indicates that the security function is on, and then
For example, when the car security unit 10 is connected to a power supply of another vehicle, a siren is sounded or the like to notify the surroundings that the vehicle has been stolen.

The car security unit 10 has the following operation modes, and changes the operation mode according to the operation of the remote unit 11 or the operation unit 13 by the user and the state of each sensor. (1) Drive Mode (Drive Mode) This is a mode when the user drives the vehicle. At this time, the ignition switch 32 is on and the security function is off.

(2) Disarm Mode
This is a mode in which the security function is off. In this mode, no alarm is generated even if the sensor is activated. (3) Valet Mode In this mode, the security function is temporarily stopped with the ignition switch 32 turned off.

(4) Arm Mode (Arm Mode) This is a mode in which the security function is on. When the sensor operates in this arm mode, the operation proceeds to the next alarm mode. (5) Alarm Mode (Alarm Mode) This mode notifies the surroundings of the occurrence of an abnormality by sounding a siren or the like.

Hereinafter, the operation of the car security system according to the present embodiment will be described with reference to the flowchart of FIG. When the user is driving the vehicle,
The car security unit 10 is in the drive mode, and the security function is off (step S1).

When the user turns off the ignition switch 32, the car security unit 10 shifts to the disarm mode (step S2). Then, after the user gets off the vehicle and closes the door, the remote unit 1
When the security function on button 1 is pressed, the car security unit 10 shifts to the arm mode (step S3).

Thereafter, the process proceeds to step S4, where the control unit 17 of the car security unit 10 monitors the state of each sensor. When the sensor detects an abnormality (YE
S) For example, when the door sensor is activated, the sensor that detected the abnormality and the time (input from the clock unit 15) and the like are stored in the memory unit 14 as security information (step S5). After that,
The mode is shifted to the alarm mode, and an alarm such as sounding of a siren is generated (step S6). Thereafter, after the alarm continues to be generated for a certain period of time, the alarm is stopped, and the mode shifts again to the arm mode (step 7), and returns to step S4.

On the other hand, if the sensor does not detect any abnormality in step S4 (NO), the process proceeds to step S8 to check whether or not the arm mode is released. Here, if the arm mode is not canceled, the process returns to step S4, and the state of the sensor is monitored. If the user or the like opens the door of the vehicle in the arm mode and turns on the ignition switch and the valley switch 33 within a predetermined time, the car security unit 10 shifts to the valley mode. Does not generate an alarm. In this case, after the ignition switch is turned off again and the door is opened and closed, after a certain period of time has elapsed, the car security unit 10 shifts again to the arm mode.

To release the arm mode, the user presses the security function off button of the remote unit 11. As a result, the process moves from step S8 to step S9. Thereafter, the user sets the ignition switch 32
Is turned on, the control unit 17 of the car security unit 10 searches the memory unit 14 (step S9),
When there is security information written in the memory unit 14 in step S5 (when YES in step S10)
In step S11, the security information written in the memory unit 14 is transmitted to the head unit 1 via the bus input / output unit 16.

When the head unit 1 receives the security information via the bus line 6a, the sensor and the time when the abnormality is detected are displayed on the display unit 1a for a predetermined time (for example, 60 seconds) (step S13). In this case, when a plurality of sensors detect an abnormality, the next sensor name and the time when the sensor detects the abnormality are displayed at regular intervals. FIG. 6 shows an example of the display on this occasion. FIG. 6 shows that the door sensor was activated at 10:15 am

On the other hand, in step S10, the memory unit 1
If the security information is not recorded in step S4, the process proceeds to step S12, and the car security unit 10 transmits information indicating the current security mode to the bus line 6a.
To the head unit 1 via. Upon receiving this information, the head unit 1 displays the operation mode of the car security unit 10 on the display unit 1a (Step S13). FIG. 7 shows a display example (disarm mode) at this time.

As described above, in the car security system according to the present embodiment, the memory unit 14 uses the sensor that detected the abnormality, the time when the abnormality was detected, and the like as security information.
When the user releases the arm mode and turns on the ignition switch 32.
Above, the security information is displayed in characters on the display unit 1a, so that the user can easily and in detail know the abnormality that has occurred in the vehicle.

It should be noted that in the above-described embodiment, 24
The case where security information is displayed on the display unit 1a capable of displaying information for characters has been described. In addition, for example, the car security unit 10 may be replaced with an AV (audiovisual) system having a TV display or a navigation display. The display may be connected to a navigation system provided to display security information on these displays. In this case, for example, as shown in FIG. 8, a large amount of information can be displayed on one screen, and the recognizability is further improved.

(Second Embodiment) FIG. 9 shows a second embodiment of the present invention.
It is a figure showing operation of the car security system concerning an embodiment. In the present embodiment, security information is displayed on the display unit 11 of the bidirectional remote unit 11.
Since it is basically the same as the first embodiment except that it is displayed at d, it will be described with reference to FIGS.

As in the first embodiment, the car security unit 10 monitors the state of each sensor in the arm mode, and stores in the memory unit 14 the sensor and the time when an abnormality was detected during the arm mode. Then, when the user releases the arm mode using the remote unit 11,
The car security unit 10 searches the memory unit 14. Then, when the security information is written in the memory unit 14, the car security unit 10 starts the operation shown in FIG.

That is, the car security unit 10
Transmits a "security information present" signal to the remote unit 11 via the transmission / reception unit 12 (step S2).
1). Upon receiving this signal (step S31), the remote unit 11 sounds a built-in buzzer or displays a predetermined mark on the display unit 11d to notify the user that an abnormality has occurred (step S32). ). Then, the process proceeds to step S33 and waits for security information to be sent.

On the other hand, the car security unit 10
After transmitting the "security information present" signal in step S21, the process proceeds to step S22, where the first security information is read out of the plurality of security information written in the memory unit 14, and the security information is read out via the transmission / reception unit 12. Is transmitted to the remote unit 11. Thereafter, the process proceeds to step S23.

The remote unit 11 determines in step S33
When the security information is received within the predetermined time in step S34, the process proceeds to step S34, and the security information is displayed in characters on the display 11d. That is, on the display unit 11d of the remote unit 11, the sensor that has detected the abnormality and the time at which the sensor has detected the abnormality are displayed as security information.

On the other hand, the car security unit 10
After waiting for 5 seconds in step S23, the process proceeds to step S24 to check whether or not the memory unit 14 has the next security information. If there is the next security information, the process returns to step S22 to transmit the next security information. In this manner, in the car security unit 10, when a plurality of pieces of security information are stored in the memory unit 14, the security information is sequentially read out every five seconds and transmitted to the remote unit 11. When all the security information has been transmitted, the operation ends.

After displaying the first security information on the display unit 11d, the remote unit 11 returns to step 33 and waits for the next security information to be sent. When the next security information is received within a predetermined time, the process proceeds to step 34, where the received security information is displayed in characters on the display unit 11d.
Return to step 33. In this way, the remote unit 11 sequentially displays a plurality of pieces of security information on the display unit 11d. And the remote unit 1
When the display of all the security information sent from the car security unit 10 is completed, the operation 1 ends.

FIGS. 10A to 10E show examples of security information display of the remote unit 11. However, FIG.
10A is a display example when the door sensor detects an abnormality, FIG. 10B is a display example when the hood or trunk sensor detects an abnormality, and FIG. 10C is a display example when the radar sensor detects an abnormality. A display example, FIG. 10D is a display example when the impact sensor detects an abnormality, and FIG. 10E is a display example when the glass sensor detects an abnormality.

In the present embodiment, since the security information is displayed on the display unit 11d of the remote unit 11, there is an advantage that the user can know the abnormality that has occurred in the vehicle even outside the vehicle. by the way,
Usually, the remote unit 1 of the car security system
Numeral 1 is set so that data can be transmitted and received only for an extremely short time (for example, 350 msec) at a time in order to suppress power consumption. For this reason, even if the car security unit 10 attempts to transmit many pieces of security information at once, if the transmission time exceeds the set time, a reception error occurs in the remote unit 11. Therefore, in the present embodiment, as described above, reading and transmission of security information are repeated every 5 seconds. However, as shown in FIG. 11,
It is also possible to transmit a plurality of pieces of security information at one time.

FIG. 11 is a flowchart showing the operation of a modification of the second embodiment. When security information is stored in the memory unit 14, the control unit 17 transmits a "security information present" signal to the remote unit 11 via the transmission / reception unit 11 (step S41). When receiving the "security information present" signal (step S51), the remote unit 11 sounds a built-in buzzer or displays a predetermined mark on the display unit 11d (step S52).

On the other hand, the car security unit 11
The process shifts from step S41 to step S42 to transmit a "reception time extension request" signal. Remote unit 11
Receives this "reception time extension request" signal (step S53), changes the receivable time to, for example, 3 seconds (step S54). Then, the process proceeds to step S55,
A "reception time extension completed" signal is transmitted.

The car security unit 10 receives the "reception time extension completion" signal (step S43).
In step S44, the security information stored in the memory unit 14 is read, and the security information is continuously transmitted. In the remote unit 11,
The security information is received and stored in the internal memory (steps S56 and S57). Then, the security information stored in the internal memory is read out, for example, every 5 seconds and displayed on the display unit 11d.

As described above, in this example, by extending the reception time of the remote unit 11, a plurality of pieces of security information can be transmitted at one time, and the CPU in the control unit 17 of the car security unit 10 has Time can be significantly reduced. Further, in this example, since the security information is stored in the internal memory of the remote unit 11, it is possible to selectively display information desired by the user instead of simply displaying the security information in order.

Further, the security information may be transmitted from the car security unit 10 to the remote unit 11 only when the user desires to display the security information on the display unit 11d of the remote unit 11. (Third Embodiment) Hereinafter, a third embodiment of the present invention will be described. In the present embodiment, a mode for displaying the sensitivity adjustment value of the sensor is added to the car security unit 10 of the first embodiment, which will be described with reference to FIGS. The description of the overlapping part is omitted.

A sensor for detecting a vehicle abnormality requires a sensor composed of an on-off switch such as a door sensor, a hood sensor and a trunk sensor, and a sensitivity adjustment such as an impact sensor and a radar sensor. There is a sensor. The radar sensor has an exterior (EXTEROR) level that generates a warning (short beep) when a person approaches the vehicle in arm mode,
Furthermore, an interior (INTERI) that generates alarms such as sounding sirens and flashing lights when a person enters the vehicle
OR) level, and these levels can be adjusted individually. Some impact sensors have two levels: a warning level that generates a warning when a relatively light impact is applied, and a warning level that generates an alarm when a strong impact is applied.

In the present embodiment, the sensitivity of these sensors requiring sensitivity adjustment is adjusted as shown in FIG. That is, first, when the user presses a predetermined button of the remote unit 11 when the car security unit 10 is in the valley mode (for example, simultaneously presses a security function on button and a security function off button), a predetermined signal is transmitted to the remote unit. 11 to the car security unit 10, and the car security unit 10 shifts to the sensitivity adjustment mode (step S
61).

When shifting to the sensitivity adjustment mode, the car security unit 10 first enters the exterior level sensitivity adjustment mode of the radar sensor 26 (step S).
62). In this mode, car security unit 1
0 transmits the sensor name and the current external level adjustment value of the sensitivity adjustment unit 26a to the head unit 1 via the bus line 6a. The head unit 1 is, for example, as shown in FIG.
As shown in FIG. 3A, the sensor name (RADAR) and the current sensitivity adjustment value (for example, a number from 1 to 20 as a guideline of sensitivity, 01 in FIG. 13A) are displayed on the display unit 1a. .

In this state, the user operates the remote unit 11
When the up (UP) or down (DOWN) button provided on the camera is pressed, a sensitivity up or down signal is transmitted to the car security unit 10. When receiving the sensitivity up signal, the car security unit 10 adjusts the exterior level of the sensitivity adjustment unit 26a to increase the sensor sensitivity by one scale, and when receiving the sensitivity down signal, adjusts the exterior level of the sensitivity adjustment unit 26a. To lower the sensor sensitivity by one scale. Then, the sensitivity adjustment value is transmitted to the head unit 1 via the bus line 6a.
Upon receiving this signal, the head unit 1 updates the sensitivity adjustment value displayed on the display unit 1a.
In this manner, the sensitivity of the radar sensor 26 at the exterior level can be adjusted to an appropriate value.

When the user presses the valley switch 33 for, for example, three seconds or more in the exterior level sensitivity adjustment mode of the radar sensor 26 (YES in step S63), the car security unit 10 shifts to the warning level sensitivity adjustment mode of the impact sensor 27. Yes (Step S6
7). Further, when the user presses the predetermined button again (for example, simultaneously presses the security function on button and the security function off button) in the exterior level sensitivity adjustment mode of the radar sensor 26, the car security unit 10 activates the radar sensor 26. Move to interior level sensitivity adjustment mode.

In the interior level sensitivity adjustment mode of the radar sensor 26, the car security unit 10 sends the sensor name and the current interior level adjustment value of the sensitivity adjustment unit 26a to the head unit 1 via the bus line 6a.
Upon receiving this data, the head unit 1 displays the sensor name and the current sensitivity adjustment value (08 in FIG. 13B) on the display unit 1a, for example, as shown in FIG. 13B. .

In this state, the user operates the remote unit 11
When the up (UP) or down (DOWN) button provided on the vehicle is pressed, the car security unit 10 adjusts the interior level of the sensitivity adjustment unit 26a and transmits the sensitivity adjustment value to the head unit 1 via the bus line 6a. .
Upon receiving this signal, the head unit 1 updates the sensitivity adjustment value displayed on the display unit 1a.

Thereafter, when the predetermined button is pressed (for example, the security function on button and the security function off button are simultaneously pressed), the car security unit 10 ends the sensitivity adjustment mode and shifts to the drive mode. Also in the warning level adjustment mode of the impact sensor 27 in step S67, when the user presses the up (UP) or down (DOWN) button provided on the remote unit 11 in the same manner as described above, the car security unit 10 sets the sensitivity adjustment unit. The sensitivity of the warning level 27a is changed, and the sensitivity adjustment value is transmitted to the head unit 1 via the bus line 6a. When the head unit 1 receives this data, for example, as shown in FIG. The name and the current sensitivity adjustment value are displayed on the display unit 1a. The user raises the remote unit 11 (UP)
Alternatively, the sensitivity can be adjusted by a down (DOWN) button, and the current sensitivity adjustment value of the warning level of the impact sensor 27 is displayed on the display unit 1a of the head unit 1.

In the adjustment mode of the sensitivity of the warning level of the impact sensor 17, the user sets the valley switch 33 to 3 for example.
If pressed for more than one second (YES in step S68), the car security unit 10 shifts to the glass break sensor sensitivity adjustment mode (step S71). On the other hand, when the user presses the predetermined button (simultaneously presses the security function on button and the security function off button) in the sensitivity adjustment mode of the warning level of the impact sensor 17, the car security unit 10 sets the alarm level of the impact sensor 27 to the warning level. Shift to sensitivity adjustment mode (step S6)
9).

Even in the sensitivity adjustment mode of the alarm level of the impact sensor, the user can adjust the sensitivity by using the up (UP) or down (DOWN) button of the remote unit 11, and the display unit 1a of the head unit 1 has, for example, As shown in FIG. 13D, the current sensitivity adjustment value of the alarm level of the impact sensor 27 is displayed.

The glass break sensor 2 in step S71
Similarly, in the sensitivity adjustment mode 8, the user can adjust the sensitivity by using the up (UP) or down (DOWN) button of the remote unit 11, and the display 1 a of the head unit 1 has a glass break sensor 28.
The current sensitivity adjustment value is displayed. Then, after the sensitivity of the glass break sensor 28 is adjusted, when the user presses the predetermined button, the car security unit 10 ends the sensitivity adjustment mode and shifts to the drive mode.

In the present embodiment, in addition to obtaining the same effects as in the first embodiment, the sensitivity of the sensor can be adjusted while viewing the display on the display section 1a of the head unit 1. This eliminates the need to operate the sensor every time the sensitivity is adjusted as in the related art, and to check the sensitivity, thereby significantly improving the workability of the sensitivity adjustment. In the above-described embodiment, the case where the sensor name for adjusting the sensitivity and the sensitivity adjustment value are displayed on the display unit 1a of the head unit 1 has been described.
4 (a) to 4 (e), the remote unit 11
The display unit 11d may display the name of the sensor for adjusting the sensitivity and the sensitivity adjustment value. Also in this case, the car security unit 10 is
a, 27a, and 28a, the current sensitivity adjustment value is transmitted to the remote unit 11 via the transmission / reception unit 12 every time the sensitivity is changed.
To the display unit 1 in the remote unit 11.
Update the display of 1d.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described.
An embodiment will be described. In this embodiment, the car security unit 10 according to the first embodiment is used.
And a write mode of the ID code of the remote unit 11 is added to FIG. 1 and FIG. 1 to FIG.

One vehicle on which the car security unit 10 is mounted may be used by a plurality of users. In this case, each user owns the remote unit 11. A different ID code is registered in each remote unit 11 at, for example, a manufacturing stage.
The code needs to be registered in the car security unit 10. That is, the remote unit 11 transmits a registered ID code when transmitting various signals. If the received ID code of the remote unit 11 is not registered in advance, the car security unit 10 ignores the received signal. The car security unit 10 includes an EEPROM in the memory unit 14 for registering an ID code.
A plurality of ID codes can be registered in the PROM.

Hereinafter, a method of registering an ID code in car security unit 10 according to the present embodiment will be described with reference to FIG. First, when the ignition switch 32 is turned on and the car security unit 10 is in the disarm mode, the car security unit 10
When the reset button (not shown) is pressed, the car security unit 10 shifts to the ID code learning mode. Then, the car security unit 10 sends a message indicating that the head unit 1 has shifted to the ID code learning mode via the bus line (for example,
"CODE LEARNING MODE ENTERE
R "). Upon receiving this message, the head unit 1 displays the message on the display unit 1a as shown in FIG.

About one second after transmitting the above message, the head unit 1 performs the next operation (ie,
ID code transmission) message (for example, “PRES
STX BUTTON ") is transmitted to the head unit 1 via the bus line. Upon receiving this message, the head unit 1 displays the message on the display unit 1a as shown in FIG.

When the user presses a predetermined button (TX button in this example) of the remote unit 11 within a predetermined time (for example, 5 seconds) after the mode shifts to the ID code learning mode, the head unit 10 sends the data from the remote unit 11. The obtained ID code is stored in the EEPROM of the memory unit 14.
Register with. Then, a message (for example, “CODE ACCEPTED”) indicating that the ID code has been registered in the head unit 1 is transmitted via the bus line.
In the head unit 1, the car security unit 10
When the message is received from, the message is displayed on the display unit 1a as shown in FIG. If the car security unit 10 does not receive the ID code within the predetermined time, it returns to the original mode.

Next, the car security unit 10
Is the message of the next operation (for example, “PRES
S TX BUTTON OR RELESE VAL
ETSWITCH "). In this case, if the message is long, the message is divided into, for example, three times and transmitted every second. When the head unit 1 receives the message, it receives the message shown in FIG. Is displayed on the display unit 1a as shown in FIG.

Thereafter, when the user registers the ID code of the next remote unit, the user pushes the TX button of the next remote unit. Then, the message shown in FIG. 15C is displayed on the display unit 1a of the head unit 1 as in the case of the first remote unit. On the other hand, when the user presses the valley switch, the car security unit 10 ends the ID code learning mode.

In the present embodiment, in addition to obtaining the same effects as in the first embodiment, the ID code of the remote unit 11 is registered while viewing the display on the display unit 1a of the head unit 1. This has the effect of improving workability.

[0069]

As described above, in the car security device according to the present invention, the sensor detecting the abnormality and the time when the sensor detects the abnormality are stored in the storage means as security information. Since the security information is output to the outside via the communication means, the security information can be displayed on a device having a liquid crystal display or the like connected via the communication means. Thereby, the details of the abnormality can be easily known.

Further, in the car security system according to the present invention, a sensor that detects an abnormality in the car security device and a time when the abnormality is detected are stored as security information, and the in-vehicle device such as an audio device, an AV device or a car navigation device is stored. Since the security information is transmitted via the communication means and the security information is displayed in characters on the display unit of the in-vehicle device, it is possible to easily know details when an abnormality occurs.

[Brief description of the drawings]

FIG. 1 is a diagram showing a car security system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing connections between units.

FIG. 3 is a block diagram showing the car security unit in more detail.

FIG. 4 is a diagram showing a display unit of the remote unit.

FIG. 5 is a flowchart showing an operation of the security system according to the embodiment of the present invention.

FIG. 6 is a diagram showing an example of a display display of security information.

FIG. 7 is a diagram illustrating an example of a display display of an operation mode of the car security unit.

FIG. 8 is a diagram showing an example of a display screen when displaying security information on a TV display.

FIG. 9 is a flowchart showing an operation of the car security system according to the second embodiment of the present invention.

FIG. 10 is a diagram illustrating a display example of security information when displayed on a display unit of a remote unit.

FIG. 11 is a flowchart showing a modification of the second embodiment.

FIG. 12 is a flowchart showing an operation of the car security system according to the third embodiment of the present invention.

FIG. 13 is a diagram showing an example of display display in a sensor sensitivity adjustment mode.

FIG. 14 is a diagram showing an example of a display display of the remote unit when adjusting the sensitivity of the sensor.

FIG. 15 is a diagram showing a display on the remote unit when an ID code is registered.

[Explanation of symbols]

 Reference Signs List 1 head unit 1a display unit 2 CD changer 3 sound processor unit 4 amplifier 5 speaker 10 car security unit 11 remote unit 12 reception unit 13 operation unit 14 memory unit 15 clock unit 16 bus input / output unit 17 control unit 21 starter cut relay 22 siren Drive unit 23 Headlight drive unit 24 to 28 Sensor 31 Power supply 32 Ignition switch 33 Valley switch 34 Door lock unit

Claims (8)

[Claims] 1. One or more sensors for detecting the state of each part of a vehicle, sensor monitoring means for monitoring the state of these sensors, and a sensor for detecting an abnormality when the sensor monitoring means detects a sensor abnormality. A car security device comprising: storage means for storing time as security information; and communication means for outputting the security information stored in the storage means to the outside. 2. The car security device according to claim 1, wherein the communication unit outputs the security information to the outside via a cable. 3. The car security device according to claim 1, wherein the communication unit outputs the security information to the outside via radio waves, light, or sound waves. 4. The communication means outputs the security information stored in the storage means to the outside when the user turns on an ignition switch of the vehicle after releasing a security function. Claim 1
The car security device according to any one of claims 1 to 3. 5. The car security device according to claim 1, wherein the communication unit outputs information indicating the sensitivity of the sensor to the outside when the sensitivity of the sensor is adjusted. 6. The car security device according to claim 1, wherein the communication unit outputs an operation to be performed next when the ID code of the remote control unit is registered. . 7. A car security device connected to one or a plurality of sensors for detecting a state of each part of the vehicle, and when the sensor detects an abnormality, a sensor that detects the abnormality and a time stored as security information, and a character display. And a vehicle-mounted device that is connected to the car security device via a cable and displays the security information transmitted from the car security device via the cable on the display unit. A car security system characterized in that: 8. A car security device connected to one or a plurality of sensors for detecting a state of each part of the vehicle, and when the sensor detects an abnormality, the sensor and the time when the abnormality is detected are stored as security information, and a character display. The security information transmitted and received from the car security device via the cordless communication means, capable of bidirectionally transmitting and receiving data through the car security device and the cordless communication means. And a remote control unit for displaying on the display unit.