JP2565596B2 - Security device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security device, and more particularly to a remote control security device for vehicles, homes, etc. in which various entertainment devices such as audio devices, TV devices and video devices are installed.

[0002]

2. Description of the Related Art There is a remote control type car security device for preventing the vehicle itself and various car accessories installed in the vehicle from being stolen. This car security device is equipped with an abnormality sensor such as a shock sensor or a motion sensor that detects when an abnormality occurs in the vehicle, and a siren that issues an alarm, and the driver gets off the vehicle and operates it at hand. When the car security device body receives the arm operation command when the arm is operated with the instrument, it enters the arm state (warning state), and the detection signal from the abnormality sensor is input to monitor whether there is an abnormality. For example, it controls the drive of the siren and defeats bandits.

On the other hand, as a countermeasure against a burglar intruding into a vehicle despite the existence of a car security device, an anti-theft device for preventing car entertainment equipment such as a car audio device from being stolen by a pirate ( Anti-Theft system) is provided. In this anti-theft device, the car audio device is connected to the car battery (+ B power supply) separately from the ACC power supply in advance, and the driver turns off the engine key and disconnects the + B power supply after turning off the ACC power supply. The presence / absence of a power supply is detected by a power-off sensor circuit, and when the power supply is detected to be + B due to the bandit removing the car audio device from the vehicle, the microcomputer of the car audio device indicates to the memory (RAM) a flag indicating the power-off. Stand up.

After that, when the bandit brings back the car audio device and connects it to the + B power supply or the ACC power supply and turns on the power supply, the microcomputer first determines whether or not a flag indicating power off is set in the memory. When the power-off flag is not set, normal program processing is executed and a normal operation state is set. When the power-off flag is set, normal program processing is stopped and normal operation is not performed.

[0005] In this way, even if a thief steals a car audio device equipped with an anti-theft device, he or she does not use it, thereby reducing the willingness to steal and preventing theft.

However, in the above-described conventional anti-theft device, a dry battery type backup power supply circuit must be provided in the car audio device in advance so that the microcomputer can perform predetermined processing after the + B power supply is cut off. In addition to the power cut-off sensor circuit, the device takes up a lot of space, and if a pirate who brought back the car audio device disconnects the backup power supply circuit, the flag data in the memory will be erased, preventing normal operation. There was a problem.

[0007]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a security device which imposes little space on an entertainment device and makes it difficult for a bandit to operate the device normally.

[0008]

According to one aspect of the present invention, there is provided a hand operation device for performing an arm / disarm operation, an abnormality detecting means for detecting the occurrence of an abnormality, and an alarm means for issuing an alarm. It is equipped with a security device main body that performs abnormality monitoring and alarm control according to the operation of the local controller, and the security device main body is a warning means when receiving a transmission signal from the local controller and a warning when the receiving means receives an arm operation command. In a security device including security control means for performing abnormality monitoring and predetermined alarm control when an abnormality occurs and canceling warning when a disarm operation command is received, the security device main body is connected to one or more entertainment devices. In addition, the security control means of the security device body is An anti-theft on command including a constant ID code is output to each entertainment device, and when a disarm operation command is received, an anti-theft off command including a predetermined ID code is output to each entertainment device. When a programmable ROM and an anti-theft command are input, the ID code included in the anti-theft command is programmed in the programmable ROM.
When the anti-theft-off command is input, the ID code included in the anti-theft-off command is collated with the ID code registered in the programmable ROM, and when they match, the registered ID code in the programmable ROM is deleted.
Code registration / erasing means and programmable ROM ID
This is achieved by providing prohibition means for prohibiting the operation of the entertainment device when the code is registered.

According to another aspect of the present invention, the security device body is provided with an operating means for setting an ID code, and the security control means outputs an anti-theft-on command and an anti-theft-off command including the set ID code. It is achieved by doing.

[0010]

According to one aspect of the present invention, when an arm operation or a disarm operation is performed by the hand-held operation device, the security device main body enters the alert state or the alert release state, and the security control means includes a predetermined ID code. When the anti-theft-on command or the anti-theft-off command is output to the entertainment device, and the entertainment device inputs the anti-theft-on command, the ID code included in the anti-theft-on command is registered in the programmable ROM and the operation is prohibited. When the theft-off command is input, the ID code included in the anti-theft-off command is collated with the ID code registered in the programmable ROM, and when they match, the registered ID code in the programmable ROM is erased and the operation prohibition is released. As a result, when the ID code is registered in the programmable ROM, the ID code does not disappear even if the backup power is cut off, and the normal operation of the entertainment device can be reliably prevented until the same ID code is input thereafter. In addition to the power-off sensor circuit, a dry battery type backup power circuit is not required, and space for entertainment equipment can be saved. Furthermore, it be that there is no hand operation unit and the security device body for performing an arm / disarm operation to erase the ID code of the programmable ROM is rather difficult, hand operated instrument because the user carrying the thief uses entertainment equipment not It is possible. Further, it is not necessary to separately perform the arm / disarm operation for the security device body and the anti-theft on / off operation for the entertainment device, which saves the trouble.

According to another aspect of the present invention, the security control means outputs the anti-theft on command and the anti-theft off command including the ID code preset by the operating means. This makes it difficult for the bandit to find the ID code registered in the programmable ROM even if he / she obtains the hand-held operating device and the security device main body, and the entertainment device can be kept in a nearly impossible state.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a principal block diagram showing the construction of a remote control type car security device according to the present invention.

In the figure, 1 is a hand-operated device for performing an arm / disarm operation, 1a is an arm key, and 1b is a disarm key. The handheld controller 1 transmits an operation command (command code) corresponding to an operation by placing it on a radio wave.
2 is an antenna, 3a to 3n are ACC switch sensors, key sensors (provided on the key cylinder), door sensors,
It is used by a person (driver or occupant) sensor or the like to determine whether or not a condition for shifting to an arm state (warning state) is satisfied. 4a to 4n are shock sensors, glass sensors,
The motion sensor etc. detect the abnormality that occurred in the vehicle. 5
Is a siren and is driven by the car security device main body 6 described later.

Reference numeral 6 denotes a car security device main body, which is in an arm state in response to a remote control operation of the hand-held operation device 1 to perform abnormality monitoring, alarm generation control when an abnormality occurs, and return to a disarm state (warning release state). To do A receiving unit 7 amplifies or detects a signal received by the antenna 2 and outputs a received signal. Reference numeral 8 denotes an operation section for the driver to set an ID code, and 9 denotes a siren drive section for driving the siren 5.

Reference numeral 10 is a security controller having a microcomputer structure, 10a is a decoding unit for decoding an operation command from a received signal, 10b is an ID code registration unit for registering an ID code set by the operation unit 8, and 10c is a decoding unit. When the operation command is an arm operation command, if a predetermined condition is satisfied, the arm state is entered and abnormality monitoring is performed and alarm generation control is performed when an error occurs, and when the operation command is a disarm operation command, the arm state is released and the disarm state is entered. Is the control unit. The control unit 10c outputs an anti-theft-on command including the set ID code to the car entertainment device, which will be described later, when the arm state is set, and outputs an anti-theft off command including the set ID code when the disarm state is set.

Reference numeral 11 denotes a tuner deck type car audio device which is an example of car entertainment equipment. Reference numeral 12 is an operation unit for performing operations such as power on / off, channel selection, tape fast-forwarding, and rewinding.
M), 14 is a radio receiving unit, 15 is a tape reproducing unit, 16 is a changeover switch, 17 is an amplifier, 18 is a display unit, 19 is a main stabilizing power supply circuit for generating a predetermined DC voltage from an ACC power supply, 20 Is a power relay switch provided between the ACC power supply and the main stabilizing power supply circuit 19,
Reference numeral 21 is a sub-stabilized power supply circuit that creates a backup DC power supply from + B (car battery) power supply, 22 is a system controller having a microcomputer configuration, and 22a is a power relay switch 20 and a radio reception unit 14 according to the operation of the operation unit 12. The controller 22b performs a predetermined control operation on the tape reproducing unit 15, the changeover switch 16 and the like, and 22b follows an anti-theft on command input from the car security device main body 6 and outputs the ID code included in the anti-theft on command to the programmable ROM 13 The ID code included in the anti-theft off command and the ID code registered in the programmable ROM 13 are collated in accordance with the anti-theft off command, and the ID code registered in the programmable ROM 13 is erased when they match each other. / Erase part, 22c is professional ID code Ramaburu ROM13 is a control prohibition section for prohibiting the control operation to the control unit 22a when registered.

Reference numeral 23 is a speaker driven by the amplifier 17, which is installed at a predetermined location in the vehicle. Reference numeral 24 is an ACC switch for turning on / off the ACC.

In this embodiment, both the anti-theft on command and the anti-theft off command are the ID code itself, and the system controller 22 is a programmable ROM.
The ID code entered in the ID code 13 in the unregistered state is used as the anti-theft-on command, and the programmable ROM
Input of the ID code in a state where the ID code is registered in 13 is distinguished as an anti-theft off command.

FIG. 2 is a flow chart showing the operation of the system controller 22 of the car audio apparatus 11, and FIG. 3 is a flow chart showing the operation of the security controller 10 of the car security apparatus body 6, which will be described below with reference to these figures.

The system controller 22, the programmable ROM 13, and the display unit 18 of the car audio device 11 are preliminarily supplied with a backup voltage created from a + B power source, and the car security device body 6 is initially in a disarmed state. It is assumed that the ID code is not registered in the ID code registration unit 10b. Further, the programmable R of the car audio device 11
It is assumed that the OM 13 is also in an unregistered ID code.

When the driver turns on the engine key to turn on the ACC switch 24 and then presses the power key of the operation unit 12 to turn on the power, an operation command is input to the control unit 22a of the system controller 22 ( Step 10
1, 102). At this time, the control prohibition unit 22c determines whether the ID code is registered in the programmable ROM 13 (step 103). Since it is not registered here, the control operation of the control unit 22a is not prohibited, and the power supply relay switch 20 is turned on by the control unit 22a to supply the stabilized DC voltage to each part of the set (step 104). Next, the control unit 22a switches the changeover switch 16 to the radio side if the cassette is not inserted in the tape reproducing unit 15. As a result, a radio broadcast flows from the speaker 23 (steps 105 and 106).

When the operating section 12 is operated to select a channel in this state, the control section 22a controls the radio receiving section 14 to select a channel (steps 107 and 108). When the driver inserts the cassette into the tape reproducing unit 15, the control unit 22a puts the tape reproducing unit 15 in the PLAY state and switches the changeover switch 16 to the tape side. This allows the speaker 2
The tape performance starts from 3 (steps 109 and 11)
0).

When the operation section 12 performs a fast-forward operation, the control section 22a controls the tape reproducing section 15 to perform a fast-forward operation to fast-forward the tape (steps 111 and 112). Similarly, when the rewind operation is performed, the tape is rewound. When the driver takes out the cassette, the control unit 22a
Returns to the original radio reception state (steps 113 and 10).
6).

After that, when the driver presses the power key of the operation unit 12 to stop the car audio, the control unit 22a
Turns off the power relay switch 20 to turn off the power (steps 114 and 115). When the engine key is turned to turn off the ACC switch 24, the system controller 2 is backed up by the + B power supply.
2. The programmable ROM 13 remains energized.

When the driver leaves the vehicle and wants to operate the car security device, first, when an operation for setting an ID code of a predetermined number of digits is performed on the operation unit 8 of the car security device body 6, the ID code of the security controller 10 is set. It is registered in the registration unit 10b (steps 201 and 20).
2).

When the driver pulls out the engine key, gets out of the vehicle, closes the door and locks the key, and then pushes the arm key 1a of the hand-held operation device 1 to put the car security device in the arm state, the arm put on the radio wave. The operation command is fired. This radio wave is received by the antenna 2 and then received by the receiving unit 7 of the car security device main body 6, the received signal is input to the security controller 10, and the decoding unit 10a
The arm operation command is decoded by. The decrypted arm operation command is sent to the control unit 10c. When the arm operation command is input, the control unit 10c determines from the outputs of the sensors 3a to 3n whether a predetermined arming condition is satisfied (steps 203 and 204).

When the ACC switch 24 is turned off, the key is removed from the key cylinder, the door is closed, and a predetermined condition such as no person in the vehicle is satisfied, the control section 10c determines that the arming condition is satisfied. If the arm is in the arm state (step 205), and if the ID code is registered in the ID code registration section 10b, the ID code is output to the system controller 22 of the car audio device 11 as an anti-theft-on command (steps 206, 207). ).

When the system controller 22 inputs the ID code, the ID is stored in the programmable ROM 13 until then.
Since the code is not registered, the input ID code is treated as an anti-theft on command. That is, the ID code registration / deletion unit 22b of the system controller 22 is a programmable ROM when the ID code is input while the ACC power is off.
It is determined whether the ID code is registered in 13 (step 116-
118), NO, so the entered ID code is written in the programmable ROM 13 and registered (step 11).
9). As a result, the anti-theft on state is set.

When in the arm state, the control unit 10c of the security controller 10 monitors the presence or absence of abnormality of the vehicle from the outputs of the sensors 4a to 4n (step 208). If the vehicle is shocked, the glass is broken,
When it is moved, it is determined that an abnormality has occurred, and alarm control is performed on the siren drive unit 9 to make the siren 5 sound, and the bandits are exterminated (step 209).

When the driver returns to the vehicle, if there is no particular abnormality, the disarm key 1b of the hand-held controller 1 is pressed before the door is opened to perform the disarm operation. Then
A disarm operation command sent on the radio wave is emitted from the handheld controller 1, received by the antenna 2, then received by the receiving unit 7 of the car security device body 6, and further received by the decoding unit 10a of the car security controller 10. The arm operation command is decoded and input to the control unit 10c.

Control unit 1 to which a disarm operation command has been input
0c shifts to the disarm state (step 210,
211), if the ID code is registered in the ID code registration unit 10b, the registered ID code is output to the car audio device 11 as an anti-theft off command (steps 212 and 213), and a match signal is output for a certain short time. Wait for input (step 214).

When the ID code is input, the system controller 22 of the car audio device 11 treats the input ID code as an anti-theft off command because the ID code was registered in the programmable ROM 13 until then. That is, the ID code registration / erasure unit 22b of the system controller 22 determines whether the ID code is already registered in the programmable ROM 13 when the ID code is input while the ACC power is off (steps 117 and 118), and Y
Since it is ES, the ID code input this time is collated with the ID code registered in the programmable ROM 13 to determine whether they match (steps 120 and 121). When they match, the ID code registered in the programmable ROM 13 is cleared and erased, and then a match signal is output to the security controller 10 of the car security device main body 6 (steps 122 and 123). As a result, the anti-theft-off state is set, and if the engine key is turned to turn on the ACC switch 23 and then the power key is pressed, the set is brought into a normal operating state as described above (steps 101 to 101).
104).

If there is a mismatch in step 121, the ID code registration / erasure unit 22b does not clear the ID code and does not output a match signal, but outputs an alarm display signal to the display unit 18 to display an error message. (Step 1224, the input of a new ID code is waited. Then, when the newly input ID code matches, the ID code of the programmable ROM 13 is erased (steps 117, 118, 120, 121). ), The coincidence signal is output and the error message display is erased (steps 123, 125, 126)).

Control unit 1 of security controller 10
0c deletes the ID code registered in the ID code registration unit 10b when a match signal is input within a certain time (short time) after outputting the anti-theft off command (step 215), and returns to step 201. Then, the same processing as described above is performed. If the coincidence signal is not input within a fixed time, the control unit 10c takes a relatively long wait time and then proceeds to step 217, where a disarm operation command is input after a new ID code is set. , And outputs a new anti-theft off command (ID code) (steps 217 to 219, 213).

If, while the driver is away from the vehicle, a bandit enters the vehicle and removes the car audio device 11 from the vehicle, the + B power is cut off and the system controller 2
2. The programmable ROM 13 and the display unit 18 are inactive because the backup power is turned off. However, since the programmable ROM 13 in which the ID code is registered is non-volatile, the ID code is not erased. After stealing the car audio device 11, the bandits have a car battery or ACC.
When the power key of the operation unit 12 is pressed to connect to the set and to operate the set, an operation command is input to the control unit 22a (steps 101 and 102). At this time, the control prohibition unit 2
2c determines whether the ID code is registered in the programmable ROM 13 (step 103), and since it is already registered, the control operation of the control unit 22a is prohibited. Therefore, the control unit 22
a does not perform power-on control and keeps the set inactive. As a result, the bandits cannot use the set. In order to operate the set, the ID code recorded in the programmable ROM 13 needs to be erased.
This is not possible except using the car security device main body 6, and the driver can easily keep the set in the inoperative state because the driver carries out the handheld device 1 when leaving the vehicle.

Even if the bandit has already obtained the hand-operated device 1 and the car security device body 6 as shown in the present embodiment, the disarm operation can be performed by setting the same ID code as that set by the driver. Unless you can operate the set unless the ID code set by the bandit is different from the ID code registered in the programmable ROM 13,
It is extremely difficult for a bandit to turn off the anti-theft state of the set because the next ID code is not output until a certain time has passed.

The car audio device 11 can be used alone as it is, and can be combined with a car security device later.

In the above-mentioned embodiment, even if the anti-theft-on state is set, no particular display is made. However, the anti-theft-on state is displayed on the display section to appeal to the bandits and discourage the set from stealing. May be. Further, the car audio device is provided with a warning sound signal generation section, the output side is connected to the input side of the amplifier, and the warning sound signal generation section and the amplifier are powered by the + B power source, and the ID code of the anti-theft off command is programmable ROM. When the ID code registered in is not matched, an alarm sound signal is generated in the alarm sound signal generation section by the alarm control of the system controller, and an alarm sound is output from the speaker. An alarm signal may be output from the car security device main body side to the system controller on the car audio device side when the alarm is generated, and an alarm sound may be generated by the alarm control of the system controller.

Further, in the above embodiment, the security controller outputs the ID after outputting the anti-theft off command.
I tried to delete the code (step 215 in FIG. 3).
However, the same ID code may be output unless the driver performs a change operation, and a fixed ID code that is individually determined for each car security device body in advance may be used. To output or I
A fixed command code for anti-theft is prepared separately from the D code, and the command code + ID code is output as an anti-theft-on command or an anti-theft-off command.
Erase part is command code related to anti-theft on command +
When the ID code is input, the ID code is registered in the programmable ROM, and when the command code + ID code related to the anti-theft-on command is input, the programmable RO
You may make it collate with the ID code of M and delete.

When the ID code of the anti-theft off command does not match the ID code registered in the programmable ROM, the security controller of the car security device body waits for a certain period of time. The system controller may wait for a certain period of time and do not accept the input of a new ID code during this period.

Although only one car entertainment device is connected to the car security device main body in the above embodiment, a plurality of car entertainment devices such as a car TV device may be connected in addition to the car audio device. In this case, a plurality of output terminals for the anti-theft on command and the anti-theft off command of the car security device body may be provided, or one output terminal may be connected in parallel to each device in the middle of the output line. If you have multiple match signal input terminals, or if there is a time lag between each device receiving the anti-theft off command and outputting the match signal, you can tell which device has output the match signal. So, make it common in the middle of the input line from each device 1
It may be one input terminal.

Further, the present invention is not limited to a car security device, and it goes without saying that the home security device main body and one or more home entertainment devices such as a home audio device and a TV device can be applied in combination.

[0043]

As described above, according to one aspect of the present invention, when the arm operation or the disarm operation is performed by the hand-held operation device, the security device main body enters the alert state or the alert release state, and the security control means sets a predetermined ID. When an anti-theft-on command or an anti-theft-off command including a code is output to the entertainment device, and the entertainment device inputs the anti-theft-on command, the ID code included in the anti-theft-on command is programmable R
When the anti-theft off command is input while registering in the OM and the operation is prohibited, the ID code included in the anti-theft off command is registered in the programmable ROM.
Since the registered ID code in the programmable ROM is erased and the operation prohibition is released when the ID code is registered in the programmable ROM, the ID code disappears even if the backup power is cut off. Since the normal operation of the entertainment device can be reliably prevented until the same ID code is input after that, the battery power backup power circuit is not required in addition to the power-off sensor circuit, and the space of the entertainment device can be saved. . Further, it is difficult to erase the ID code of the programmable ROM without the hand-held operating device for performing arm / disarm operation and the security device main body, and the hand-held operating device is carried by the user, which makes it difficult for the bandits to normally operate the entertainment device. Can be possible. Further, it is not necessary to separately perform the arm / disarm operation for the security device body and the anti-theft on / off operation for the entertainment device, which saves time and effort.

According to another aspect of the present invention, the security control means is configured to output the anti-theft on command and the anti-theft off command including the ID code preset by the operating means. Programmable RO even if the bandits get the hand controller and security device
It is not easy to find the ID code registered in M, and the entertainment device can remain difficult to use.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a remote control type car security device according to an embodiment of the present invention.

2 is a flow chart showing an operation of a system controller of the car audio device in FIG. 1. FIG.

3 is a flow chart showing an operation of a security controller of the car security device in FIG.

[Explanation of symbols]

 1 Handheld Controller 6 Security Device Main Body 7 Receiver 8 Operation Unit 10 Security Controller 11 Car Audio Device 13 Programmable ROM 22 System Controller 22a Control Unit 22b ID Code Registration / Erase Unit 22c Control Prohibition Unit

Claims (2)

(57) [Claims] 1. A security for performing an abnormality monitoring and an alarm control according to an operation of a hand operation unit for performing an arm / disarm operation, an abnormality detection unit for detecting an abnormality occurrence, an alarm unit for issuing an alarm, and an operation of the hand operation unit. The security device main body is provided with a device main body, and the security device main body is in a warning state when receiving a transmission signal from the handheld controller and when the receiving device receives an arm operation command, and performs a predetermined alarm control when an abnormality is monitored and an abnormality occurs. In a security device including a security control unit that performs warning release when receiving a disarm operation command, the security device body is connected to one or more entertainment devices, and the security control unit of the security device body is configured to operate the arm operation command. each ene antitheft on command containing a predetermined ID code when receiving Output to Teimento device, the antitheft off command containing a predetermined ID code when receiving a disarmed operation command output to the entertainment devices, each entertainment device, a programmable ROM
When an anti-theft command is input, the ID code included in the anti-theft command is registered in the programmable ROM,
When an anti-theft off command is input, the ID code included in the anti-theft off command is collated with the ID code registered in the programmable ROM, and when they match, the registered ID code of the programmable ROM is erased, and an ID code registration / erasing means, A security device comprising: prohibition means for prohibiting the operation of the entertainment device when the ID code is registered in the programmable ROM. 2. The security device main body is provided with an operation means for setting an ID code, and the security control means outputs an anti-theft-on instruction and an anti-theft-off instruction including the set ID code. The security device according to claim 1, wherein the security device is a security device.