JP3132937B2 - Anti-theft device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device, and more particularly, to an intruder who has entered a specific security area by obstructing the view of the intruder, thereby depriving the intruder of freedom of action. The present invention relates to an anti-theft device capable of preventing theft.

[0002]

2. Description of the Related Art Conventionally, various kinds of money in a room or
As a measure to prevent theft and vandalism of valuables,
For example, when a moving object such as a human or another animal invades a predetermined guard area, the intrusion of the moving body is detected by an appropriate detection means set at a predetermined position in the warning area. Then, tear gas or odorous gas is released into the guard area, creating a situation where the intruder cannot stop in the guard area, giving up the action, and giving up the action. By letting it escape early,
Methods for preventing such theft or vandalism have been proposed.

However, such tear gas or odorous gas has a bad influence on the human body, and at the same time, leaves a specific bad smell in the guard area, and enters the area after canceling the guard mode. In addition to giving an aversion to the person, if there is an exhibit such as valuables in the guard area, the constituents of the tear gas or the odorous gas adhere to the There was also the problem of contaminating and altering the exhibits, and they had not been put to practical use.

[0004]

SUMMARY OF THE INVENTION Accordingly, the applicant of the present application
In order to solve such a conventional technique, Japanese Patent Application No. 4-31687 is disclosed.
In No. 7, when there is an intruder such as a moving object in the security area, the security area is filled with smoke,
By restricting the view of the intruder, the anti-theft device which can deprive the intruder of freedom of action and prevent theft or destruction of money or valuables has been devised.

[0005] When the intruder intrudes, the inside of the guard area is filled with smoke in a short time when the intruder enters, thereby restricting the visibility of the intruder and preventing the intruder from being stolen or destroyed. However, since the smoke continues to be emitted even after restricting the intruder's view, the area within the alert area is overfilled with smoke, and when the intruder is captured, the The time required for the intruder to clear becomes longer, and there is a disadvantage that the mobility for early confirmation and early capture of the intruder is impaired. Therefore, an object of the present invention is to provide an anti-theft device that can start smoking when an intruder such as a moving object is detected in the guard area, and can control the amount of smoke transmitted to the guard area. And

[0006]

The present invention employs the following technical configuration to achieve the above object. That is, as one form thereof, it comprises a moving object detecting means, a smoke emitting means for blowing out smoke in a warning area in response to an output of the moving object detecting means, and a control means for controlling the respective means. The anti-theft device, wherein the control means comprises: a time-measuring means for measuring an elapsed time of the emission of the smoke ejected from the smoke-emitting means; and Employ anti-theft devices. In another aspect, the apparatus includes a moving object detecting unit, a smoke generating unit that emits smoke in a warning area in response to an output of the moving object detecting unit, and a control unit that controls each of the units. An anti-theft device, wherein the control means comprises: density detection means for detecting the density of the smoke ejected into the security area; and means for adjusting the amount of the smoke emitted by the output signal of the density detection means. Adopt anti-theft equipment provided.

[0007]

Since the antitheft device according to the present invention has the above-described technical configuration, when the moving object detecting means detects a moving object, the smoke emitting means is substantially in contact with the human body. For example, a smoke-producing substance that is harmless to alcohol, for example, is vaporized by heating to generate smoke, thereby restricting the visibility of the intruder by filling the inside of the guard area with the smoke, and Makes intruders incapable of acting. At that time, the control means,
Reduce the amount of smoke generated according to the time that the smoke is generated,
Alternatively, by increasing or decreasing the amount of smoke generated according to the smoke density in the security area, excessive smoke generation in the security area is suppressed, and when an intruder is captured, the smoke filled in the security area can be released as soon as possible. By making it clear, it is possible to eventually lead to early confirmation and early arrest of the intruder.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a specific example of an anti-theft device according to the present invention. FIG. 1 is a view for explaining the configuration of a specific example of an anti-theft device according to the present invention. In FIG. 1, moving object detecting means 31 to 32 provided in or around a security area 1 are provided. An anti-theft device 10 is shown comprising smoke emitting means 4 for emitting smoke into the security zone 1 in response to the output of the means, and control means 5 for controlling the respective means.

In the security area 1 according to the present invention, an area 2 in which a security object, such as a safe, an automatic cash dispenser, expensive goods such as precious metals, and exhibition art such as paintings and sculptures, is arranged. And, of course, the security zone 1
Is provided with a doorway 8 for a human or animal as a moving object and windows 91 to 93, and the doorway 8 and the window 91 are provided.
To 93, a conventionally known anti-theft sensor, that is, the doorway 8 or the windows 91 to 93 in the alert mode.
Is opened or closed, or when at least a part of the entrance 8 or the windows 91 to 93 is destroyed, it is determined that an intruder has invaded, and the remote from the security area 1 is determined. It is desirable to install a device configured to transmit the information to the control means 5 provided at or near the ground and to drive the alarm 11.

In other words, according to the present invention, the moving object detecting means 3 detects that a moving object has entered the guard area 1.
1, 32 sense and transmit the information to the control means 5,
The control unit 5 transmits a drive signal for driving the predetermined smoke generating unit 4 to the smoke generating unit 4 so that the smoke generating unit 4 generates smoke.

The number of the moving object detecting means 31 and 32 used in the present invention and the arrangement position thereof are not particularly limited, but are at least one, and the blind spot 1 It is possible to set an appropriate number and arrangement positions of the moving object detecting means 31 and 32 so that a system capable of detecting an intruder can be taken in a state where no intruder is detected. In addition, the configuration of the moving object detection means 31 and 32 themselves is not specified, and a conventionally known object detection device configured using a medium such as an ultrasonic wave, an infrared ray, a laser, and a magnetic field line may be used. It is possible.

Further, in the anti-theft device according to the present invention, known anti-theft detection sensors 33 and 34 provided at the moving object detecting means 31 and 32 and the entrance 8 or the windows 91 to 93 and the like. , 35, 36, etc., may be configured to operate in cooperation with, for example, at least one of the anti-theft detection sensors 33, 34, 35, 36 and the moving object detection means 31, At least one of the 32 may be configured to activate the smoke generating means 4 described later when the information detecting the presence of the intruder is output.

Further, the smoke generating means 4 used in the present invention has no adverse effect on the human body in place of the conventional tear gas or odorous gas, and the bad odor is present in the caution area 1. In addition, it is desirable that the smoke does not remain and that the smoke is quickly emitted and that the inside of the guard area 1 is filled with smoke, and that the smoke has a high concentration and that the intruder in the guard area has It is desirable to be able to completely obstruct the view, thereby making it impossible for the intruder to perform actions such as destroying or carrying objects to be watched in the watch area 1. . Further, in the present invention, the moving object detecting means 31 and 32 are arranged around the guard area 1 to detect an intruder approaching the guard area 1, and the moving object detecting means detects the intruder approaching the guard area 1. When a person is detected, the caution area may be filled with smoke in advance.

The smoke-generating component used in the smoke-generating means according to the present invention is preferably one mainly composed of an alcohol component, and more specifically, one composed of a dihydric alcohol-based component. Things are desirable. Examples of fuming substances capable of efficiently producing smoke by suitable vaporization in the present invention include, for example, tripropylene glycol,
Propylene glycol, 1,3-butanediol, water and the like are appropriately mixed.

By using the above-mentioned smoking substance,
By elevating the temperature to about 200 ° C., it is possible to vaporize in a short time and generate the required concentration of smoke, and the fuming substance contains petroleum components such as kerosene and mineral substances. There is no unpleasant odor or pungent odor, so there is no adverse effect on the human body. Further, even when the temperature is lowered, there is no problem that the deposited impurities and the like of the component stay and spray harmful substances.

FIG. 2 shows an outline of a specific example of the structure of the smoke generating means 4 used in the present invention. The smoke generating means 4 is provided with a storage section 42 for storing a liquid as the smoke generating substance in the main body thereof, and the smoke generating substance sucked up from the storage section 42 by a pulse-driven liquid feed pump 49. Is injected into a heating area 47 composed of an appropriate heating element 46 such as a ceramic heater, where vaporization and fuming are performed.

The heating element 46 is heated by a suitable heating means 48 such as electric heating. The vaporized and smoke-producing substance passes through the outlet from an appropriate nozzle 43 and is jetted into the security area. Preferably, a fan 44 or the like is provided at the upper and rear portions of the nozzle, and The portion is provided with a downward louver 45. The louver 45 can be changed left and right and up and down. The smoke that is emitted is light and tends to rise immediately above the sky, but since the wind from the fan 44 blows downward through the louver 45, it immediately blows downward immediately after blowing. It is desirable to fill the guard area 1.

In the present invention, when the moving object detecting means 31 and 32 detect an intruder and a smoke start signal is output via the control means 5 in response to the detection signal, Immediately cause the smoke component to emit smoke, and the guard area 1
Is required to be filled with the smoke. Therefore, since it is necessary to cause the smoke component to emit smoke rapidly, the heating element 46 of the smoke generating unit 4 is activated, for example, when a warning state is set, or is activated when the power is turned on, and is always preliminary. It is desirable that the apparatus be configured so that it is heated and, when the smoke start signal is output, the temperature is sequentially increased to a predetermined smoke allowable temperature to perform the smoke injection. That is,
In the smoke generating means 4 according to the present invention, it is desirable that the heating body 46 be constantly heated up to a predetermined temperature in order to rapidly heat the smoke emitting component. Therefore, it is preferable that the heating element 46 has a predetermined temperature sensor, for example, a thermistor.

FIG. 3 shows AA of the smoke generating means 4 of FIG.
The outline of the configuration of the cross-sectional view is shown. In FIG. 3, the nozzle 43 includes a heating base 46 and a heating means 48 together with the rotating base 4
Fixed at 1. Therefore, the nozzle can be appropriately set at a desired position by rotating the rotary base 41 right and left. In addition, a rotatable front surface 40 having an air outlet is provided on the front surface of the nozzle 43 of the smoke generating means 4. Therefore, after the position of the nozzle 43 is set, the front surface portion 40 is rotated so that the outlet is located at the front surface of the nozzle 43.

The smoke blown out from the outlet thus set has a high temperature and a strong momentum. For example, an intruder sticks a gum tape or the like to the front opening of the nozzle 43 to cut off the blowing of the smoke. Even so, it is so powerful that it comes off immediately. In addition, the smoke generating means 4 is provided with a gap (not shown) in addition to the front opening, so that even if an intruder closes the opening with some kind of shielding, the smoke is generated from the gap. Is blown out. Therefore, it is virtually impossible for smokers to disturb smoke.

In the present invention, the smoke generating means 4 includes a plurality of moving object detecting means 31 and 32 provided in or around the security area 1 and an area outside the security area 1 or an area constituting the security area. Information from the anti-theft sensors 33 to 35 provided in the doorway section 8 or the windows 91 to 93 existing in the section is taken into the control means 5, and based on a calculation result by any of them or a combination thereof. It is driven.

When the moving object detecting means 3 installed in the caution area does not detect the presence of an intruder, the smoke generating means 4 transmits a signal for stopping the smoking operation from the control means 5. Thus, the power supply to the heating element 46 is stopped, the driving of the liquid feed pump is stopped, and the fan 44 is also stopped, so that the blowing of the smoke into the warning area is stopped.

Next, the control means 5 according to the present invention will be described with reference to FIG. In FIG. 4, the control means 5
Is provided with a detection signal receiving section 51, a heating element driving section 52, a pump driving section 53, and a timer section 54. The moving object detecting means 31, 32, or the anti-theft sensors 33-3
When 5 or the like detects an intruder, a detection signal from each unit is input to the detection signal receiving unit 51. Based on the detection signal, the detection signal receiving unit 51 determines a situation according to, for example, a preset control program or sequence. When it is determined that the receiving unit 51 is abnormal, the receiving unit 51 sends a heating control signal to the heating unit driving unit 52 to raise the temperature of the heating unit 46 to a predetermined temperature, and sends a pump start signal to the pump driving unit 53. To start the liquid sending pump 49. As a result, the fuming material is supplied to the heating element of the heating means, and the emission of smoke into the caution area is started. At this time, the timer 54 starts counting the duration of time since the pump was started.

The timer 54 sends a limiting signal of the pump operation to the pump driver 53 when a predetermined time elapses, and changes the drive signal value to the pump 49 in the pump driver 53 to change the pump signal. The amount of liquid sent is reduced, and the amount of smoke from the smoke generating means 4 is limited. This can prevent the area from being filled with excessive smoke.

In this embodiment, at the same time as the receiving section 51 starts the pump, the timer section 54 controls the pump driving section 53 with a pulse signal, and when the predetermined time has elapsed, as shown in FIG. Is changed stepwise or continuously to change the driving current of the pump to reduce the amount of the smoke-producing substance. In addition, a valve is provided between the pump 49 and the heating element 46 to open the valve. It is also possible by changing the degree. Note that the predetermined time is determined as a preset design value, for example, from the volume scale or shape of the security area, the characteristics of the smoke-producing substance, or the like.

As another control mode of the control means 5, a smoke density detector 61 is further provided in the guard area, and connected to the detection signal receiving section 62 as shown in FIG. The concentration control unit 63 sends a control signal to the pump drive unit 64 in accordance with the smoke concentration detected by the detector 61, and adjusts the supply amount of the fuming substance by the pump drive signal whose duty ratio is controlled as described above, for example. The inside of the alert area may be set to a predetermined smoke density. In this case, the smoke density detector 61 is provided at an appropriate position in the area, and is a conventional light scattering type smoke sensor, or an infrared type smoke sensor including a light emitter and a light receiver, or a smoke sensor in the security area. Can be used as a duct housing type smoke sensor for measuring the concentration by sucking into a predetermined area. Preferably, it is an analog signal type smoke sensor whose smoke density is output quantitatively.

In the anti-theft device according to the present invention, when an intruder or the like is detected in the guard area 1,
The smoke generating means is driven to fill the inside of the security area with the smoke, and at the same time, the doorway, windows, etc. of the security area 1 are locked by an electronic lock or the like. It is desirable to configure so as not to enter. For this reason, for example, it is conceivable that a smoke being emitted leaks from the caution area 1 and a third party erroneously determines that a fire has occurred. It is desirable to provide a smoke emitting means 7 for indicating that the smoke emitting means is emitting smoke.

On the other hand, an intruder who is confined in the guard area 1 is deprived of freedom of action, and is worried about causing destructive behavior with excitement or fear. It is desirable to provide an appropriate smoke informing means 6 for informing that the smoke emitting means is emitting smoke inside the guard area, and to notify the intruder that the smoke emitting means is emitting smoke by voice information. That is, both the smoke notification unit 6 and the smoke display unit 7 according to the present invention use audio information or image information.

Further, the smoke generating means according to the present invention is interlocked with alarm means provided inside or outside the guard area, and is connected to a central security center or a police station. It may be what you have.

In this embodiment, for the sake of convenience, the form in which the smoke generating means and the control means are divided has been described, but of course, they may be integrated.

[0031]

The anti-theft device according to the present invention employs the above-mentioned technical configuration. Therefore, when the moving object detecting means detects a moving object, the smoke emitting means does not act on the human body. By heating a fuming substance mainly composed of a substantially harmless alcohol to vaporize it to generate smoke, and filling the caution area with an appropriate concentration of smoke that restricts the intruder's visibility, The intruder into an inoperable state in the guard area, and eventually clearing the smoke filled in the guard area as soon as possible, which can lead to the arrest of the intruder early. .

The anti-theft device can be used even if it is installed at an arbitrary place because the front part having the nozzle and the outlet is rotatable. Further, since the louver is set downward, the smoke does not immediately rise upward immediately after blowing, but instead blows downward, so that the smoke fills up from below to above in the alert area.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of an entire system of an anti-theft device according to the present invention.

FIG. 2 is a block diagram showing, in cross section, one configuration example of a smoke generating means used in the present apparatus.

FIG. 3 is a sectional view showing an AA section in FIG. 2;

FIG. 4 is a block diagram showing a configuration example of a control unit used in the present apparatus.

FIG. 5 is a diagram showing a relationship between an elapsed time of a pump and a liquid sending amount in the present apparatus.

FIG. 6 is a block diagram showing another configuration example of control means that can be used in the present apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... In guard area 2 ... Non-security object 31 and 32 ... Moving object detection means 33-36 ... Anti-theft sensor of entrance and exit, 4 ... Smoke emission means 5 ... Control means 6 ... Smoke emission notification means 7 ... Smoke emission display means 8 ... Entrances 91-93 ... Window 10 ... Anti-theft device 11 ... Alarm 40 ... Front part 41 ... Rotating pedestal 42 ... Smoke emitting material storage 43 ... Nozzle 44 ... Fan 45 ... Louver 46 ... Heating body 47 ... Heating area 48 ... Heating means 49 ... Pump

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G08B 15/02 G09B 9/00 A63J 5/02

Claims (2)

(57) [Claims] 1. A moving object detecting means, a smoke generating means for emitting smoke into an alert area in response to an output of the moving object detecting means,
And control means for controlling each of the means. The control means measures the elapsed time of the emission of the smoke emitted from the smoke generating means, and the amount of the emitted smoke based on the output signal of the time measuring means. Anti-theft device, characterized by comprising means for reducing power consumption. 2. A moving object detecting means, a smoke generating means for emitting smoke into an alert area in response to an output of the moving object detecting means,
And control means for controlling each of the means. The control means detects the density of the smoke ejected into the caution area, and emits the smoke based on the output signal of the density detection means. An anti-theft device comprising means for adjusting the amount.