JPH01128197A - Stimulus reactive thief sensor - Google Patents

Abstract

PURPOSE:To effectively detect an intruder with reduced errors by using a behavior comparing device which compares the behavior of an unstimulated intruder with that of a stimulated intruder and decides the intrusion of a thief when a big difference is confirmed in said comparison. CONSTITUTION:When an intruder 1 enters an intrusion warning area, a waveform sent from a transmitter 2 hits the intruder 1 and the reflected waveform is received by a receiver in a form different from the normal one. This changed reflected waveform is detected by an intrusion detection processing circuit 5 and an intrusion detecting signal is sent to a bell/buzzer driving circuit 6 as well as to a push-button detecting circuit 9. When the intruder 1 receives the stimulus of a bell, etc., the intruder 1 shows behavior to the stimulus source to interrupt the stimulus. Thus a push-button 7 is pushed. The signals of the button 7 are received by the circuit 9. When coincidence is secured between the signal received from the button 7 and the signal sent from the circuit 6, a thief detecting signal 10 is transmitted to the outside. The signal 10 is produced only when coincidence is obtained between said two signals. Thus no wrong decision is never given to outside persons.

Description

[Detailed Description of the Invention] [Industrial Application Field] A household security device in the home automation field that detects that a thief is intruding,
A thief sensor whose purpose is to extract it as a signal.

[Conventional technology]

Conventional intrusion sensors for crime prevention use a method in which phototubes, ultrasonic sensors, etc. are installed in rooms and passageways serving as guarded spaces to detect intruders who intentionally break through the security network.

[Problem that the invention seeks to solve]

With conventional methods, the intrusion sensor itself not only malfunctions due to signal processing noise, but also detects moving objects other than humans such as dogs and cats, visitors, or people who inadvertently enter without turning off the automatic warning. The alarm bell may be erroneously set off in response to a guest who is standing in front of the door.

For this reason, even if an intrusion sensor is installed, it is often turned off due to repeated malfunctions that cause a nuisance to the neighborhood, making it impossible to use the sensor with peace of mind.

Furthermore, in order to prevent malfunctions, it takes a lot of adjustment work when installing the detector, which significantly increases the installation cost.

[Means and effects for solving the problem] To this end, the present invention includes an intrusion detection means for detecting that a moving object has entered into a space to be guarded, a stimulation means for stimulating the intruding object, A behavior detection means for measuring the behavior of the intruding object in response to the stimulus is used to compare the behavior of the invading object before and after the stimulus is applied, and if a significant difference is observed, it is determined that a thief has intruded. After detecting an intruder, it applies a stimulus such as light or sound.

If the intruder breaks through the security network with malicious intent, he or she will psychologically dislike being discovered by family members or being arrested later, so he or she may run away from the stimulus, hide, or interrupt the stimulus. The animal behaves in response to a stimulus source in such a way as to cause

After the stimulus is applied, changes in the intruder's behavior are measured using sensors such as ultrasound, radio waves, visible light, and infrared light.
Only when a significant difference is observed between the behavior before the stimulus was applied, it is determined that a thief is intruding, and a detection signal is generated.

Alternatively, a switch is provided that appears to stop the stimulus, and if the switch goes off after the stimulus is applied, it is determined that a thief is breaking in, and the thief is arrested. Generates a signal indicating that it has been detected.

〔Example〕

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a conceptual diagram showing the configuration of the present invention. When an intruder 1 enters an intrusion prevention area, a transmitter 2 of ultrasonic waves, infrared rays, etc.
3 (hereinafter referred to as ultrasonic waves, etc.). The ultrasonic wave etc. 3 is reflected by the intruder 1 and enters the ultrasonic wave etc. receiver 4. The reflected waveform received by the receiver 4 is processed by the intrusion detection processing circuit 5, and if a significant change is found in the reflected waveform, a detection signal is issued and the signal is sent to the drive circuit 6 for a bell, buzzer, etc.
Activate the system to ring a bell, buzzer, etc. 7 (hereinafter referred to as the bell). When an intruder presses the push button 8 to stop the bell ringing while the bell is ringing, the push button detection circuit 9 detects this and issues a burglar detection signal 10 indicating that there is an intruder.
to notify the outside that there is an intruder.

In this configuration, the operation will be explained next.

In a normal case when there is no intruder, the transmitter 2 emits ultrasonic waves 3 at regular intervals or at random intervals, and the receiver 4 receives the reflected waveforms from walls and the like.

When an intruder 1 enters the intrusion prevention area, the waveform from the transmitter 2 hits the intruder 1 and the reflected waveform changes from normal and enters the receiver 4. This changed reflected waveform is detected by the intrusion detection processing circuit 5, and sent as an intrusion detection signal to the drive circuit 6 for a bell or the like, which drives the bell or the like and also sent to the push button detection circuit 9. The intruder who receives the stimulus from the bell or the like behaves toward the stimulus source so as to interrupt the stimulus, and presses the push button 7. The signal from this pushbutton 7 is received by a pushbutton detection circuit 9, and when it is matched with a signal from a drive circuit such as a bell, it is transmitted to the outside as a thief detection signal 10.

Since this thief detection signal to the outside is emitted only when the two match, it does not give an incorrect judgment to outsiders.

The thief detection signal to the outside is used to notify people outside that a thief has intruded.

(b) Ring the built-in bell or buzzer at maximum volume.

(b) Install an external emergency bell and ring it.

(c) Automatically turn on the lights in the room.

(d) Play pre-recorded footsteps and roars from the speakers at a loud volume.

(e) Photograph the intruder's face using a hidden camera or video.

(f) Links with the phone to automatically notify security companies, etc.

(g) The home controller displays the location (room) where the intruder occurred.

For the various applications mentioned above, it is necessary to transmit signals to bells, lights, speakers, camera phones, home controllers, etc., and wired, wireless, and ultrasonic waves may be used.

FIG. 2 shows a stimulus-responsive burglar sensor according to a first embodiment of the present invention, which is incorporated into an alarm clock.

The ultrasonic sensor 20 includes a transmitter 1 and a receiver 2, and has an intrusion detection processing circuit 5 built therein.

The alarm clock 21 displays the time and has a built-in driving circuit 6 and a bell 7 for a bell, a buzzer, etc.

Further, the push button 8 stops the bell 7 and is connected to a built-in push button detection circuit 9. The plug 22 is a cable that transmits the thief detection signal 10 to the outside.

In this configuration, 20 is an ultrasonic sensor that emits ultrasonic waves at regular intervals or at random intervals and receives the reflected waveform, and functions as an intrusion detection means.

Reference numeral 21 denotes an alarm clock-like main body portion, which functions as a stimulation means for stimulating an intruder with a bell, a buzzer, or a sound after an intrusion is detected by the above-mentioned intrusion detection means.

Reference numeral 8 is a push button, and it appears as if pressing this button will stop a bell or buzzer.
In fact, it is a behavior detection means that detects when the intruder shows an intention to stop the stimulation.

The push button 8 and the push button detection circuit 9 (not shown) have not been pressed before the intruder 1 is detected and the stimulus is applied, so if the push button is pressed while the stimulus is being applied, the push button is not pressed. This is a behavior comparison means that determines that there is an intrusion by a thief when there is a significant difference in the pressure between the intruders and a thief detection signal.

Although the above configuration is described as being incorporated into an alarm clock, it may be provided independently. Also, although the thief detection signal is extracted using a cable, it may also be relayed using a repeater using radio waves.

FIG. 3(a) shows a second embodiment of the present invention, in which a plurality of burglar sensors 51 to 58 are used and placed in each room or the like.

FIG. 3(b) shows the centralized display of the second embodiment, in which the thief detection signal from each thief sensor is superimposed on a high frequency to one or more display stations 60 and transmitted using a power line 61 as a signal line. This shows the case where it is displayed.

In FIG. 3(b), the functions of the display station 60 and the alarm clock 21 are for display only and for detection, respectively.

However, as shown in FIG. 3(a), all of the alarm clocks 51 to 58 may also have a display function and a detection function.

That is, in FIG. 3(a), each of the alarm clocks 51 to 58 indicates the time when no intruder has been discovered. However, for example, when the No. 2 o 3 alarm clock 52 detects an intruder, the other 51.5
The time display of alarm clocks 3 to 58 disappears, e.g. rN
It is also possible to make a display indicating that there is an intruder j appear at o and 2.

In this example, an example is shown in which a push button is used as a behavior detection means while a stimulation means (such as a bell) is operating.
In addition to the above behavior detection means, if you use vibration meters, accelerometers, angle sensors, etc., you can detect when an intruder lifts or hits the alarm clock-like body. can.

Additionally, if the button is placed at the bottom of the alarm clock instead of at the top, when an intruder lifts the clock, the pressure exerted on the bottom button by its own weight will change, so the intruder will Behavior can be detected.

Also, the signal from the ultrasonic sensor may not return, or the signal from the ultrasonic sensor may be abnormally close (
For example, if it starts to reflect at a distance of 5 cm),
Since there is a high possibility that the intruder covered the alarm clock-like body with a futon or clothes, the intruder's behavior can be detected.

In this way, if it detects that the main body is lifted, hit, or covered with a futon while the stimulation means is activated, it will generate a signal indicating that there is an intruder and that a thief has been detected. It is.

The alarm clock is set and canceled using a remote control 65 as shown in FIG. 4, and only when the correct password is entered with the remote control is the user recognized as a householder and not an intruder.

It is also possible to use the remote control to set the time at which the watch will start tracking intruders.

〔Effect of the invention〕

As described above, according to the present invention, since false detections are reduced, an intrusion sensor can be installed and operated without worrying about bothering neighbors. Therefore, even if the device is installed, it will not be turned off and installed without being used.

Further, since the detector according to the present invention does not require adjustment by a specialist after installation, the user can install the detector by himself after purchasing the detector. Therefore, since there is no installation cost at the time of purchase, it is inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram of the configuration of the present invention. Figure 2 shows the first embodiment of the present invention.
Example diagram. FIG. 3(a) is a diagram showing a second embodiment of the present invention. Third
Figure (b) is a diagram showing an example of concentrated display according to the second embodiment of the present invention. FIG. 4 is a diagram showing a third embodiment of the present invention. 1... Intruder 2... Transmitter 4... Receiver 5... Intrusion detection processing circuit 6... Drive circuit 7... Bell, buzzer 8... Push button 9... Push Button detection circuit patent applicant Komatsu Ltd. Representative (patent attorney) Oka 1) Kazuki Figure 3 (b) Figure 4

Claims (1)

[Claims] an intrusion detection means for detecting the intrusion of a moving object into a security target space; a stimulation means for applying a stimulus to the intruding object; a behavior detection means for measuring the behavior of the intruding object in response to the stimulus; The object is characterized by comprising a behavior comparison means for comparing the behavior of the object before applying the stimulus and after applying the stimulus and determining that it is a thief's intrusion if a significant difference is observed. Stimulus-responsive thief sensor.