JP3453479B2 - Car security device and car security system - Google Patents

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 a car.

[0002]

2. Description of the Related Art Conventionally, as a car security device,
It has a sensor that monitors the opening and closing of the vehicle door, hood, trunk, etc., and a sensor that detects the vibration of the vehicle,
When the user turns on the security function, there is a method in which the engine starter does not rotate even if the siren is sounded when the sensor detects an abnormality or the ignition switch is turned on.

A car security device is generally operated by a remote control unit (hereinafter referred to as a remote unit) which 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, the remote unit sends a signal from outside the vehicle to the car security device to turn on the security function.

[0004]

By the way, in the conventional car security device, for example, when an abnormality occurs in the vehicle when the security function is on, as described above,
Although the siren is sounded to inform the surroundings of the occurrence of the abnormality, if the siren is sounded for a certain period of time, the siren will stop. Therefore, the user does not notice the abnormality of the vehicle, or cannot know the details of the abnormality (what sensor has operated and when, etc.).

Conventionally, there is also a car security device in which a sensor detecting an abnormality can be known by a blinking pattern (blinking interval) of an LED (light emitting diode). However, in this case, the user needs to manually check which sensor has operated by the blinking pattern of the LED, which is complicated. Further, also in this car security device, the user cannot know the time when the abnormality occurs.

In view of the above, the object of the present invention is to provide a car security device and a car security device capable of knowing in more detail the details of an anomaly that occurred while the car security device was operating (such as the sensor and time when the anomaly was detected). It is to provide a system.

[0007]

The above-mentioned problems are solved by one or a plurality of sensors for detecting the state of each part of the vehicle, a sensor monitoring means for monitoring the states of these sensors, and an abnormality of the sensor by the sensor monitoring means. And a storage unit that stores the time and the sensor that detected the abnormality as security information, and a communication unit that outputs the security information stored in the storage unit to the outside when the security function is released. It is solved by a car security device characterized by.

Further, the above-mentioned problem is connected to one or a plurality of sensors for detecting the state of each part of the vehicle, and when the sensor detects an abnormality, the sensor and time when the abnormality is detected are stored as security information in car security. An apparatus 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 equipment) or have a in-vehicle device such as a car navigation system, the car security device, security features
Security information stored when the
Is transmitted to the vehicle-mounted 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 via the cordless communication means with the car security device. A remote control unit for displaying the security information sent from the car security device via the cordless communication means on the display unit,
The car security device includes the remote controller.
Security function release signal from the unit
When the security function is released, the security
Sends information about the utility to the remote control unit
You may do it .

In the car security device of the present invention, when the sensor detects an abnormality in the vehicle, the sensor and time when the abnormality is detected are stored in the storage means as security information. Then, for example, when the user performs a predetermined operation, the security information stored in the storage means is output to the outside via the communication means. Therefore, for example, when 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 equipped with 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 an abnormality is detected. It is possible to display, for example, the time when it was done in characters. As a result, 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 and an on-vehicle device such as an audio device, an AV device or a car navigation device having a display section capable of displaying characters are connected by, for example, a cable. Then, the sensor and time when the abnormality is detected in the car security device are stored as security information, and this security information is transmitted to the audio device, the AV device, the car navigation device or the like via the cable. In the audio device, AV device, 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 the display section of the remote control unit by using a remote control unit capable of bidirectionally transmitting and receiving data to and from the car security device via the cordless communication means. .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION 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 car security unit (car security device) with a plurality of audio units (audio devices) connected via a cable 6.

In FIG. 1, reference numeral 1 is a head unit in which an FM / AM tuner and a cassette player are incorporated,
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 reproduce and stop a desired CD, and to specify the order of musical pieces to be played. 10 is a car security unit. Details of the car security unit 10 will be described later. Reference numeral 3 denotes a sound processor unit, which applies a sound effect or equalizes (sound quality adjustment) to an audio signal input via the cable 6. 4 is an amplifier that amplifies 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 a digital signal and an audio signal line for transmitting an analog audio signal. As shown in FIG. 2A, the bus line 6a of the cable 6 is through-connected inside each unit UNT (head unit 1, CD changer 2, car security unit 10, etc.), and the bus of each unit UNT is connected. It is connected to the input / output unit PO. That is, each unit UNT can send and receive signals to and from each other 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.
, And outputs one of the audio signal sent from the unit UNT in the preceding stage and the 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 is 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 unlocking (unlocking) a vehicle door, and the like. As shown in FIG. 4, the remote unit 11 is also provided with a display section 11d capable of displaying 8 alphanumeric characters and time. Further, the bidirectional remote unit 11 has a built-in buzzer (not shown).

The bidirectional remote unit 11 may be a unit that transmits and receives 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 for transmitting and receiving data to and from, and an operation unit 13 provided with various operation keys. Further, 14 is a ROM in which a program for realizing a function required as a car security device is stored, a RAM for storing various data, and an EEPROM (Electrically Erasable Pr) in which an ID (Identity) code of a remote unit is registered.
ogramable ROM) etc. is a memory unit.
Reference numeral 15 is a clock unit for measuring time, 16 is a bus line 6
It is a bus input / output unit connected to a to output data to the bus line 6a or input data from the bus line 6a.

Reference numeral 17 denotes a control unit composed of a microcomputer, which is connected to the transmission / reception unit 12, the operation unit 13, the memory unit 14, the clock unit 15 and the bus input / output unit 16. The control unit 17 monitors the states of various sensors described below, and when the sensor detects an abnormality, writes the sensor and time at which the abnormality is detected in the memory unit 14,
Generates a signal to generate an alarm. 26a,
Reference numerals 27a and 28a denote sensor sensitivity adjusting units, and these sensitivity adjusting 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 on-vehicle power source (battery), and the car security unit 10 is supplied with power from the power source 31. Further, the car security unit 10 can detect the on / off state of the ignition switch 32. Reference numeral 33 is a valet switch, which is installed in an inconspicuous place such as under the dashboard. This valley switch 33 is used for the remote unit 1
It is used when canceling the security function without 1. Reference numeral 34 denotes a door lock portion for locking (locking) and unlocking (unlocking) the door by the remote unit 11.

The alarm device, sensor, etc. connected to the car security unit 10 will be described below. 21
Is a starter cut relay that prevents the engine starter from rotating when the car security unit 10 detects an abnormality. Reference numeral 22 denotes a siren drive section. When the car security unit 10 detects an abnormality, the siren drive section 22 is driven to ring a siren to inform 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 activated to blink the headlights to inform the surroundings of the occurrence of abnormality.

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

In addition to these sensors, various sensors can be connected to the car security unit 10 as required. In addition, the car security unit 10 is connected to another unit such as the head unit 1 by another wiring different 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 the car security unit 10 itself from being stolen. That is, when the car security unit 10 is disconnected from the power supply 31 with the security function turned on, the car security unit 1
0 keeps the security function on, then
For example, when the car security unit 10 is connected to the power supply of another vehicle, a siren is sounded to inform the surroundings that the car security unit 10 has been stolen.

The car security unit 10 has the following operation modes, and the operation mode is changed according to the operation of the remote unit 11 or the operation section 13 by the user and the state of each sensor. (1) 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
) In the mode where the security function is off, no alarm is generated even if the sensor operates. (3) Valet Mode This is a mode in which the security function is temporarily stopped while the ignition switch 32 is off.

(4) Arm Mode This is a mode in which the security function is on. When the sensor operates in this arm mode, the next alarm mode is entered. (5) Alarm Mode This is a mode that informs the surroundings of the occurrence of an abnormality, such as by sounding a siren.

The operation of the car security system according to this embodiment will be described below 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 exits 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).

After that, the control section 17 of the car security unit 10 monitors the state of each sensor in step S4. When the sensor detects an abnormality (YE
S) For example, when the door sensor operates, the sensor that detected the abnormality and the time (input from the clock unit 15) are stored in the memory unit 14 as security information (step S5), and further, a predetermined time is set. After the passage
The mode is shifted to the alarm mode, and an alarm such as sounding a siren is generated (step S6). After that, the alarm is continuously issued for a certain period of time, the alarm is stopped, the mode is returned to the arm mode (step 7), and the process 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 released, the process returns to step S4 to monitor the state of the sensor. If the user or the like opens the door of the vehicle in arm mode, and further turns on the ignition switch and the valley switch 33 within a predetermined time, the car security unit 10 shifts to the valley mode. No alarm is issued. In this case, after the ignition switch is turned off again and the door is opened / closed, after a lapse of a certain time, the car security unit 10 shifts to the arm mode again.

To release the arm mode, the user presses the security function off button of the remote unit 11. As a result, the process proceeds from step S8 to step S9. After that, the user turns on the ignition switch 32.
When is turned on, the control unit 17 of the car security unit 10 searches the memory unit 14 (step S9),
If there is security information written in the memory unit 14 in step S5 (YES in step S10)
Shifts to step S11 to transmit the security information written in the memory unit 14 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 time when the abnormality is detected are displayed on the display unit 1a for a certain period of 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. An example of the display on this occasion is shown in FIG. Note that FIG. 6 shows that the door sensor is activated at 10:15 am.

On the other hand, in step S10, the memory unit 1
If the security information is not recorded in 4, the car security unit 10 transfers 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, the head unit 1
Since the security information is displayed in characters on the display unit 1a, the user can easily and in detail know the abnormality that has occurred in the vehicle.

In the above-mentioned embodiment, 24
The case where security information is displayed on the display unit 1a capable of displaying information for characters has been described, but in addition to this, for example, the car security unit 10 may be an AV (audiovisual) system equipped with a TV display or a navigation display. Security information may be displayed on these displays by connecting to a navigation system provided. In this case, for example, as shown in FIG. 8, a lot 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 which shows operation | movement of the car security system which concerns on embodiment of FIG. In this embodiment, the security information is displayed on the display unit 11 of the interactive remote unit 11.
The display is basically the same as that of the first embodiment except that it is displayed on the screen d. Therefore, it will be described with reference to FIGS.

Similar to the first embodiment, the car security unit 10 monitors the state of each sensor in the arm mode and stores the sensor and the time when the abnormality is detected in the arm mode in the memory unit 14. When the user releases the arm mode with the remote unit 11,
The car security unit 10 searches the memory unit 14. Then, the car security unit 10 starts the operation shown in FIG. 9 when the security information is written in the memory unit 14.

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 the built-in buzzer briefly 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 the 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, in which the first security information is read out from the plurality of security information written in the memory unit 14, and the security information is transmitted via the transmission / reception unit 12. Is transmitted to the remote unit 11. Then, it transfers to step S23.

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

On the other hand, the car security unit 10
After waiting for 5 seconds in step S23, the process proceeds to step S24, and it is checked 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 way, in the car security unit 10, when a plurality of security information is stored in the memory unit 14, the security information is sequentially read every 5 seconds and transmitted to the remote unit 11. Then, when all the security information has been transmitted, the operation ends.

In the remote unit 11, when the first security information is displayed on the display section 11d, the process returns to step 33 and waits for the next security information to be sent. Then, when the next security information is received within a predetermined time, the process proceeds to step 34, after the received security information is displayed on the display unit 11d in characters,
Return to step 33. In this way, the remote unit 11 sequentially displays the plurality 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, 1 ends the operation.

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,
Normally, a remote unit 1 of a car security system
In order to suppress power consumption, 1 is set so that data can be transmitted / received only once for an extremely short time (for example, 350 msec). Therefore, even if the car security unit 10 tries to transmit a large amount of security information at one time, if the transmission time exceeds the set time, the remote unit 11 will receive a reception error. Therefore, in the present embodiment, as described above, reading and transmission of security information is repeated every 5 seconds. However, by making it as shown in FIG.
It is also possible to send a plurality of security information at one time.

FIG. 11 is a flow chart showing the operation of the modification of the second embodiment. When the 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). Upon receiving the "security information present" signal (step S51), the remote unit 11 sounds the built-in buzzer or displays a predetermined mark or the like on the display unit 11d (step S52).

On the other hand, the car security unit 11 is
The process proceeds from step S41 to step S42, and the "reception time extension request" signal is transmitted. Remote unit 11
When receiving 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,
Send a "reception time extension completed" signal.

When 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 these security information are 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, it is possible to transmit a plurality of security information at one time, and the CPU in the control unit 17 of the car security unit 10 possesses. The 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 the 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 portion 11d of the remote unit 11. (Third Embodiment) The third embodiment of the present invention will be described below. 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. 1 to 3. A description of the overlapping parts will be omitted.

The sensor for detecting a vehicle abnormality requires a sensor such as a door sensor, a bonnet sensor, a trunk sensor, etc., which is constituted by an on-off switch, and an sensitivity sensor, such as an impact sensor or 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, when a person invades the vehicle, the interior (INTERI
There are two levels, the OR level, and these levels can be adjusted individually. Some impact sensors also have two levels: a warning level that gives a warning when a relatively light shock is applied, and a warning level that gives a warning when a strong shock is applied.

In the present embodiment, the sensitivities of these sensors that require sensitivity adjustment are adjusted as shown in FIG. That is, first, when the user presses a predetermined button of the remote unit 11 (for example, the security function ON button and the security function OFF button are simultaneously pressed) while the car security unit 10 is in the valley mode, a predetermined signal is transmitted to the remote unit. 11 is sent to the car security unit 10, and the car security unit 10 shifts to the sensitivity adjustment mode (step S
61).

When the car security unit 10 shifts to the sensitivity adjustment mode, it first enters the exterior level sensitivity adjustment mode of the radar sensor 26 (step S).
62). In this mode, the car security unit 1
0 transmits the sensor name and the current adjustment value of the exterior level 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. 3 (a), the sensor name (RADAR) and the current sensitivity adjustment value (for example, the numbers 1 to 20 serving as a guideline for 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 vehicle is pressed, a sensitivity up or down signal is transmitted to the car security unit 10. When the car security unit 10 receives the sensitivity up signal, it adjusts the exterior level of the sensitivity adjusting unit 26a to increase the sensor sensitivity by one scale, and when the sensitivity down signal is received, the exterior level of the sensitivity adjusting unit 26a is adjusted. Then, the sensor sensitivity is lowered 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 way, the exterior level sensitivity of the radar sensor 26 can be adjusted to an appropriate value.

When the user presses the valley switch 33 for 3 seconds or longer (YES in step S63) in the radar sensor 26 exterior level sensitivity adjustment mode, the car security unit 10 shifts to the impact sensor 27 warning level sensitivity adjustment mode. Yes (step S6
7). When the user presses the predetermined button again (for example, the security function ON button and the security function OFF button are pressed at the same time) in the sensitivity adjustment mode of the exterior level of the radar sensor 26, the car security unit 10 causes the radar sensor 26 to operate. Switch to interior level sensitivity adjustment mode.

In the interior level sensitivity adjustment mode of the radar sensor 26, the car security unit 10 receives the sensor name and the current interior level adjustment value of the sensitivity adjustment section 26a via the bus line 6a.
When the head unit 1 receives 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 as shown in FIG. 13B, for example. .

In this state, the user operates the remote unit 11
When the UP (UP) or DOWN (DOWN) button provided on the car is pressed, the car security unit 10 adjusts the interior level of the sensitivity adjusting unit 26a and sends the sensitivity adjusting 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.

After that, when the predetermined button is pushed (for example, the security function on button and the security function off button are pushed at the same time), the car security unit 10 ends the sensitivity adjustment mode and shifts to the drive mode. Even 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, the car security unit 10 causes the sensitivity adjustment unit to operate, as in the above. When the sensitivity of the warning level of 27a is changed and the sensitivity adjustment value is transmitted to the head unit 1 via the bus line 6a, and 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 turns the remote unit 11 up (UP)
Alternatively, the sensitivity can be adjusted with the 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 warning level sensitivity of the impact sensor 17, the user sets the valley switch 33 to, for example, 3
When pressed for more than a 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 pressing the security function ON button and the security function OFF button) in the warning level sensitivity adjustment mode of the impact sensor 17, the car security unit 10 changes the warning level of the impact sensor 27 to the warning level. Shift to sensitivity adjustment mode (step S6)
9).

In this warning level sensitivity adjustment mode of the impact sensor as well, the user can adjust the sensitivity with the UP (UP) or DOWN (DOWN) button of the remote unit 11, and the display unit 1a of the head unit 1 can be adjusted, for example. As shown in FIG. 13D, the current sensitivity adjustment value of the alarm level of the impact sensor 27 is displayed.

Glass break sensor 2 in step S71
Also in the sensitivity adjustment mode of 8, the user can similarly adjust the sensitivity by using the UP (UP) or DOWN (DOWN) button of the remote unit 11, and the glass break sensor 28 on the display unit 1 a of the head unit 1.
The current sensitivity adjustment value of is displayed. When the user presses the predetermined button after adjusting the sensitivity of the glass break sensor 28, the car security unit 10 ends the sensitivity adjustment mode and shifts to the drive mode.

In this embodiment, in addition to obtaining the same effect as in the first embodiment, the sensitivity of the sensor can be adjusted while observing the display on the display unit 1a of the head unit 1. As in the prior art, it is not necessary to operate the sensor every time the sensitivity is adjusted to check the sensitivity, and the workability of sensitivity adjustment is significantly improved. 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 name of the sensor for adjusting the sensitivity and the sensitivity adjustment value may be displayed on the display unit 11d. Also in this case, the car security unit 10 has the sensitivity adjusting unit 26.
Each time the sensitivity of a, 27a, 28a is changed, the current sensitivity adjustment value is sent to the remote unit 11 via the transmitter / receiver 12.
To the display unit 1 of the remote unit 11.
Update the display of 1d.

(Fourth Embodiment) Next, the fourth embodiment of the present invention will be described.
The embodiment will be described. The present embodiment is the same as the car security unit 10 of the first embodiment.
1 to 3, and a description of the overlapping parts will be omitted.

A plurality of users may use one vehicle equipped with the car security unit 10, and in this case, each user owns the remote unit 11. Each remote unit 11 has a different ID code registered at the manufacturing stage, for example.
The code needs to be registered in the car security unit 10. That is, the remote unit 11 transmits the registered ID code when transmitting various signals. In the car security unit 10, if the received ID code of the remote unit 11 is not registered in advance, the received signal is ignored. The car security unit 10 has an EEPROM in the memory section 14 for registering an ID code.
A plurality of ID codes can be registered in the PROM.

Hereinafter, a method for registering an ID code in the car security unit 10 according to this 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,
When a 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 entered the ID code learning mode via the bus line (for example,
"CODE LEARNING MODE ENTER
R ″) is transmitted. When the head unit 1 receives this message, the head unit 1 displays the message on the display unit 1a as shown in FIG.

The head unit 1 performs the next operation (ie, about one second after sending the above message).
Send ID code) 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 fixed time (for example, 5 seconds) after shifting to the ID code learning mode, the head unit 10 is sent from the remote unit 11. The received 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 is 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 fixed time, the car security unit 10 returns to the original mode.

Next, the car security unit 10
Is the message for 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, FIG. Displayed on the display unit 1a as shown in.

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

In this embodiment, in addition to obtaining the same effect as in the first embodiment, the ID code of the remote unit 11 is registered while watching the display on the display unit 1a of the head unit 1. Therefore, the workability can be improved.

[0069]

As described above, in the car security device according to the present invention, the sensor that detects the abnormality and the time when the sensor detects the abnormality are stored in the storage means as security information, and then the storage means. Since the security information is output to the outside via the communication means, it is possible to display the security information on an apparatus 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, the sensor detecting the abnormality in the car security device and the time when the abnormality is detected are stored as security information, and the on-vehicle device such as the audio device, the AV device or the car navigation device is stored. Since the security information is transmitted to the vehicle via the communication means and the security information is displayed in characters on the display unit of the vehicle-mounted device, it is possible to easily know the details when the abnormality occurs.

[Brief description of 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 a remote unit.

FIG. 5 is a flowchart showing an operation of the security system according to the exemplary 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 showing an example of a display display of an operation mode of a car security unit.

FIG. 8 is a diagram showing an example of a display screen when security information is displayed 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 showing a display example of security information when the security information is displayed on the display unit of the 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 a display image in a sensor sensitivity adjustment mode.

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

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

[Explanation of symbols]

1 head unit 1a Display section 2 CD changer 3 Sound processor unit 4 amplifier 5 speakers 10 Car security unit 11 Remote unit 12 Receiver 13 Operation part 14 Memory section 15 Clock section 16 Bus input / output section 17 Control unit 21 Starter Cut Relay 22 Siren drive 23 Headlight drive 24-28 sensor 31 power supply 32 ignition switch 33 Valley Switch 34 Door lock part

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 25/00-25/10

Claims (5)

(57) [Claims] 1. One or a plurality of sensors for detecting the states of respective parts of a vehicle, a sensor monitoring means for monitoring the states of these sensors, and a sensor for detecting an abnormality when the sensor monitoring means detects an abnormality of the sensor, A car security device comprising: a storage unit that stores time as security information; and a communication unit that outputs the security information stored in the storage unit to the outside when the security function is released . 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. A car security device 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, the car security device that stores the sensor and time when the abnormality is detected as security information, and a character display. And a vehicle-mounted device that is connected to the car security device via a cable and that displays the security information transmitted from the car security device via the cable on the display unit. and, the car security device, the release security features
When stored, the stored security information is
A car security system characterized by transmitting to an in- vehicle device . 5. A car security device which is connected to one or more sensors for detecting the state of each part of a vehicle, and when the sensor detects an abnormality, stores the sensor and time when the abnormality is detected as security information, and displays characters. A display unit capable of performing bidirectional data communication via the cordless communication means with the car security device, and the security information sent from the security device via the cordless communication means possess a remote control unit to be displayed on said display, said car security device, the remote control
When the security function is released by the
The stored security information is transferred to the remote controller.
A car security system characterized by transmitting to a roll unit .