JPS621658A - Radio-system car protective device - Google Patents

Abstract

PURPOSE:To arouse attention to a carrier and inform him of a theft warning state as early as possible, by installing a control part, heightening a warning effect, at a time when a resetting device is not operated within the specified time after an alarm given. CONSTITUTION:A theft state detecting switch 10 is installed there, and if a theft state is detected, a control part 12 operates an alarm device 18, giving an alarm for it. And, the control part operates a car-mounted side transmitter 16 and makes it transmit a theft signal 20. So, this signal 20 is received by a carried side receiver 24 having an antenna 22, and another control part 24 operates a driver 28 and gives warning with an alarm 30. A reset switch 32 is connected to this control part 26 which heightens a warning effect yet higher in the case where this reset switch 32 is operated within the specified time after a warning signal given. With this constitution, it arouses attention to a carrier and informs him of a theft warning state as early as possible.

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a wireless vehicle security system.

``Prior art and problems to be solved by the invention'' Conventionally, as an automobile theft prevention system, for example,
There is one shown in Publication No. 20751. This conventional system is an automobile theft prevention system consisting of a transmitting means inside the vehicle and an FM radio outside the vehicle, and the transmitting means is connected to a power source for operating the transmitting means and a door switch activated by opening and closing the door. A configuration is shown in which the radio waves transmitted from the transmitting means due to a change in the state of the door switch are received by the FM radio, and the radio waves are transmitted from the transmitting means inside the vehicle due to a change in the state of the door switch. By receiving the radio waves with an FM radio outside the vehicle, the anti-theft system has a simple configuration and is inexpensive.

However, in the conventional anti-theft system, there is a problem in that when an alarm occurs, the person carrying the alarm may not notice the alarm.

An object of the present invention is to provide a wireless vehicle security system that can increase the alarm effect, alert the wearer, and notify the theft alarm state at an early stage if the wearer does not notice the alarm when the alarm occurs. The goal is to provide equipment.

"Means and effects for solving the problem" The present invention includes a theft detection means for detecting that the vehicle is stolen, and a theft detection means that is provided in the vehicle and detects that the vehicle is stolen when the theft is detected. an on-vehicle device that sends a theft signal to notify the user of theft;
a portable device that receives the theft signal at a location away from the vehicle and notifies the wearer with an alarm that the vehicle is stolen, and the portable device stops the alarm by the wearer's operation when the alarm occurs. The device is characterized by comprising a reset means, and a control section that generates an alarm to the bearer when the theft signal is received, and increases the alarm effect if the reset means is not operated within a predetermined time after the alarm is generated. do.

"Example" Hereinafter, the present invention will be described in detail based on the drawings.

FIG. 1 shows a block circuit of a wireless vehicle security system according to an embodiment of the present invention.

A theft state detection switch 10 for detecting that the vehicle has been stolen is provided, and the detection switch 10 is connected to a bugler alarm control section 12, and the control section 12 includes a vehicle-mounted transmitter 16 having an antenna 14 and , alarm device 18;
is connected.

When the detection switch 10 detects that the vehicle is stolen, the control unit 12 activates the alarm device 18 to issue an alarm and activates the vehicle-mounted transmitter 16 to notify the vehicle of the theft. 16 to transmit a theft signal 20.

The theft signal 20 is received by a portable receiver 24 having an antenna 22 , and the portable receiver 24 is connected to a control unit 26 . Then, the control unit 26 controls the theft signal 20
When a theft condition is detected, the driver 28 is activated, the alarm device 30 issues an alarm, and the person making the alarm is notified of the fact. A reset switch 32 is connected to the control unit 26, and this reset switch 32 is a switch that stops the alarm by the operation of the wearer in the event of an alarm.

As described above, the control unit 26 is configured to issue an alarm to the carrier when receiving the theft signal 20, and after the alarm is issued, the reset switch 3 is activated within a predetermined time.
If 2 is not operated, the alarm effect is increased, for example, the intermittent period of the alarm sound is shortened, or the volume of the alarm sound is increased.

Therefore, by increasing the alarm effect, the wearer can be alerted and the theft alarm state can be notified at an early stage.

Next, FIG. 2 shows in detail an embodiment on the mobile side that shortens the buzzer intermittent cycle.

In FIG. 2, the control unit is composed of a microcomputer 26, the driver 28 is composed of a plurality of transistors and resistors as shown, and the alarm is a buzzer 3.
It is 0. Furthermore, the portable side receiver 24 includes a high frequency amplifier 3
4, mixer 36, local oscillator 38, intermediate frequency amplifier 40
, an FM detector 42, and a waveform shaper 44. Also,
A code setting device 46 is connected to the microcomputer 26 .

FIG. 3 shows a flowchart of an embodiment on the mobile phone side that shortens the buzzer intermittent cycle.

In FIG. 3, starting with start 100, step 1
At 02, the code of the received signal is compared with the code of the stolen state,
If it does not match the setting code of the theft signal in step 104, the process proceeds to end 106, whereas if it is the setting code of the theft status, the process proceeds to step 108. Step 108
Then, the buzzer sounds in cycle 1 (long cycle), the timer starts in step 110, the reset switch is turned on in step 112, and the buzzer stops in step 114.

If the reset switch is not turned on in step 112, the process proceeds to step 116; if the predetermined time has not elapsed, the process returns to step 112; on the other hand, if the predetermined time has elapsed, the process proceeds to step 118. In step 118, the buzzer sounds at cycle 2 (short cycle), and when the reset switch is turned on in step 120, the buzzer stops in step 114, and the process proceeds to end 106. On the other hand, if the reset switch is not turned on, step Return to 120.

Next, FIG. 4 shows in detail another embodiment on the mobile side that increases the buzzer sound.

In FIG. 4, the same members as in the configuration of FIG. 2 are denoted by the same reference numerals, and explanations thereof will be omitted.

Two drivers are provided, driver 28-1.2
8-2 are transistors 48-1 and 48-2, respectively.
, and a resistor 50-1.50-2, and the resistance value of the resistor 50-1 is set to be larger than the resistance value 50-2 of the resistor 50-2.

When the transistor 48-1 is on, the buzzer sound is small, while when the transistor 48-2 is on, the buzzer sound is low.
The buzzer sound is loud.

FIG. 5 shows a flowchart of another embodiment on the mobile phone side in which the buzzer sound is increased.

In FIG. 5, starting with START 400, step 4
At 02, the code of the received signal is compared with the code of the stolen state,
If the setting code does not match the theft signal setting code in step 404, the process proceeds to end 406, whereas if the setting code is the theft status, the process proceeds to step 408. Step 408
Then, the transistor 48-1 is turned on and the buzzer sounds at a low volume, the timer is started in step 410, the reset switch is turned on in step 412, and the transistor 48-1, 48-2 is turned on in step 414.
turns off and the buzzer stops.

If the reset switch is not turned on in step 412, the process proceeds to step 416; if the predetermined time has not elapsed, the process returns to step 412; on the other hand, if the predetermined time has elapsed, the process proceeds to step 418. In step 418, the transistor 48-2 is turned on and the buzzer sounds loudly, and when the reset switch is turned on in step 420, the transistor 48-1, 48-2 is turned off and the buzzer is turned off in step 414. stop and proceed to end 406, while if the reset switch is not on, step 420
Return to

"Effects of the Invention" As explained above, according to the present invention, if the bearer does not notice the alarm when it occurs, the alarm effect is increased to alert the bearer and prevent theft at an early stage. Alarm conditions can be notified.

[Brief explanation of drawings]

Fig. 1 is a block circuit diagram of a wireless vehicle safety device according to an embodiment of the present invention, and Figs. 2 and 3 are a block diagram and a flowchart diagram respectively showing details of an embodiment on the mobile side that shortens the buzzer intermittent cycle. , and FIG. 4.5 are a block circuit diagram and a flowchart diagram respectively showing in detail another embodiment of the portable device for increasing the buzzer sound. DESCRIPTION OF SYMBOLS 10... Theft state detection switch, 12... Burglar alarm control unit, I4... Antenna, 16... Vehicle-mounted transmitter, 18... Alarm device, 20... Theft signal,
22... Antenna, 24... Portable receiver, 26.
...control unit, 28...driver, 30...alarm device,
32...Reset switch.

Claims (1)

[Scope of Claims] Theft detection means for detecting that a vehicle is stolen; and an on-vehicle device that is provided in the vehicle and transmits a theft signal to notify that the vehicle is stolen when theft is detected. and a portable device that receives the theft signal at a location away from the vehicle and alerts the wearer that the vehicle has been stolen, and the portable device is configured to issue an alarm through the operation of the wearer at the time of the alarm. a reset means for stopping the device; and generating an alarm to the carrier when the theft signal is received;
A wireless vehicle safety device comprising: a control unit that increases the effect of the warning if the reset means is not operated within a predetermined time after the warning is issued.