JPH0745834Y2 - Security device - Google Patents

Description

The present invention relates to a crime prevention device, and more particularly to a crime prevention device configured to capture an intruder by ultrasonic waves and to display a predetermined display to the outside. .

[Conventional technology]

Various security devices utilizing ultrasonic waves have been developed and used in the past, because the ultrasonic sensor can cover a relatively wide range as an intruder detection area.

[Problems to be solved by the invention]

However, in the above-mentioned conventional example, since it is limited to detecting the presence or absence of an intruder, it is not possible to determine whether the intruder is approaching or moving away, and therefore it is a countermeasure for those who are indoors. There was the inconvenience of being confused.

[Purpose of device]

The present invention improves the inconvenience of the conventional example, and provides a portable crime prevention device capable of detecting the position and movement of an intruder through a space in a non-contact manner and issuing a predetermined warning sound. That is the purpose.

[Means for solving problems]

In the present invention, an ultrasonic sensor unit that receives reflected ultrasonic waves from an intruder through the air, and a sensor that outputs an intruder capture signal based on the reflected sound from the intruder received by the ultrasonic sensor unit. A circuit and an abnormality display section that operates based on the intruder capture signal output from the sensor circuit are provided. This abnormality display section is activated by the intruder capture signal from the sensor circuit and operates to output a predetermined synthesized sound, and a voice output that amplifies the output of this sound synthesis circuit and outputs it as a warning sound. And means.
Further, between the voice output means and the voice synthesis circuit, an automatic volume switching circuit for switching the volume of the output sound of the voice output means is provided. An intruder approach distance calculation function that operates based on an intruder capture signal output from the sensor circuit to calculate the approach distance with the intruder, and the voice output according to the size of the approach distance with the intruder An interface having an output sound variable setting control function for activating the means and appropriately setting the volume of the output sound of the sound output means is provided between the volume automatic switching circuit and the sensor circuit, and further, the sensor The circuit, abnormality display, automatic volume switching circuit and interface are installed in a movable box. This aims to achieve the above-mentioned object.

[Example of device]

An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 indicates a sensor circuit including the ultrasonic sensor unit 1a, reference numeral 2 indicates a voice synthesis circuit, and reference numeral 3
Indicates audio output means.

In this embodiment, the voice synthesizing circuit 2 is configured to synthesize and output a voice electric signal equivalent to a bark of a dog. An interface circuit 4 is provided between the voice synthesis circuit 2 and the sensor circuit 1. Also,
A preamplifier 5 and an automatic volume switching circuit 6 are connected in series between the voice synthesis circuit 2 and the voice output means 3.

The sensor circuit 1 is provided with a reaction distance setting circuit 1A,
Thereby, for example, an intruder that has entered the range of 3 to 10 [m] can be captured and a predetermined intruder capture signal can be output to the interface circuit 4.
In this embodiment, the ultrasonic sensor unit 1a uses a transmitter / receiver (transducer) configured to perform transmission and reception with a single ultrasonic oscillator.

Also, the interface circuit 4 can output a predetermined operation signal “high level (H)” to the voice synthesis circuit 2 when an intruder is detected.

When the intruder approaches, the interface circuit 4 can output a predetermined switching control signal to the volume automatic switching circuit 6 according to the stage so that the output sound becomes loud. There is. On the other hand, when the intruder moves away, a predetermined switching control signal can be output to the volume automatic switching circuit 6 so that the output sound is reduced according to the stage. The volume automatic switching circuit 6 and the interface circuit 4 constitute volume switching means.

The voice synthesizing circuit 2 further has a tone-switching synthesizing function that outputs synthesized tones having different tones (for example, according to the type of dog) depending on the high and low frequencies, and a pitch-variable synthesizing function that changes the pitch. The one with the combination is used. Then, these functions are arbitrarily selected and set in advance by the operator by an input means (not shown).

The output of the voice synthesizing circuit 2 is amplified to an appropriate level by the preamplifier 5 and sent to the automatic volume switching circuit 6, where the output level is continuously set according to the movement of the intruder as described above. Done.

The automatic volume switching circuit 6 for setting and switching the output level is composed of a plurality of voice attenuating units having different values and a multiplexer for switching and connecting them.
Therefore, under the control of the interface circuit 4 described above, the automatic volume switching circuit 6 automatically switches the volume of the output sound of the dog to be gradually increased or decreased. That is, in the volume automatic switching circuit 6,
Volume adjustment is performed in stages.

The output of the automatic volume switching circuit 6 is sent to the audio output means 3. The audio output means 3 includes a volume adjusting circuit 7 and
It is composed of two power amplifiers 8 and 9 for individually amplifying the output of the volume adjusting circuit 7 and speakers 8A and 9A connected to the power amplifiers 8 and 9, respectively.

As shown in FIG. 4, the volume adjusting circuit 7 is a main volume 7A for continuously adjusting the output level of the entire output sound.
And auxiliary volumes 8B, 9B for adjusting the output sound for each speaker 8A, 9A.

As shown in FIGS. 2 to 4, each of the circuit parts thus configured is housed in a box 10 formed like a dog house.

As shown in FIG. 2, the box body 10 has a door 11 portion in the center of the front surface, and an elliptical through hole 10A having an oval portion in the lateral direction in the upper wall portion thereof. This oval through hole 1
The ultrasonic sensor unit 1a described above is provided at 0A. A power switch 20, a power indicator lamp 21, a main volume 7A, auxiliary volumes 8B and 9B, and a reaction distance setting knob 1e included in the reaction distance setting circuit 1A are provided on the rear surface of the box body 10. ing.

Speakers 8A and 9A are mounted on the side wall of the box body 10 as shown in FIGS. 3 and 4. Reference numeral 30 is a box 10
The reference numeral 31 designates a power source outlet provided inside the amplifier circuit case.

As shown in FIGS. 5 to 7, the ultrasonic sensor unit 1a has a structure that can be set to output ultrasonic waves in any direction within a range of α = ± 45 ° in the horizontal direction of the left and right. (See FIG. 5). Further, in the vertical direction, as shown in FIGS. 6 to 7, the structure is set so that ultrasonic waves can be output in any direction within the range of β = ± 10 ° ( (See FIG. 6).

More specifically, in FIGS. 5 to 7, in the ultrasonic sensor unit 1a, the main body case portion 40 is formed in a horn shape, and the annular fixing member 41 is fixed to the mounting portion. The annular fixing member 41 is rotatably supported by a U-shaped member 42 so as to be rotatable. The U-shaped member 42 is rotatably mounted in the horizontal plane with its center as a fulcrum. Reference numeral 43 indicates an adjusting screw for fixing the U-shaped member 42, and reference numeral 44 indicates a fixed support plate for supporting the U-shaped member 42.

Since the embodiment shown in FIGS. 1 to 7 is configured as described above, when a human or other moving object approaches the kennel box body 10, it enters within a certain distance. If a dog's bark is output immediately, it will be output with a step change such that it increases as the moving object moves closer to the box 10 and decreases as it moves away from the box 10, for example. .

Therefore, a person who hears this voice can immediately know whether the intruder or the like is approaching the house, and can take appropriate countermeasures. On the other hand, the dog's voice becomes a powerful compression sound against the intruder, and is important as an alarm to the surroundings. In this embodiment, the voice that plays such an important role is emitted only when an intruder comes, and
It has an unprecedented advantage of being able to change the strength according to the trend of the intruder.

In the above embodiment, the case where the output of the voice synthesizing circuit 2 is a bark of a dog is illustrated, but another voice may be synthesized and output.

[Effect of device]

Since the present invention is constructed and functions as described above, according to this, when an intruder enters the operation area of the ultrasonic sensor unit, the ultrasonic sensor unit immediately captures the intruder through the air. At the same time, it becomes possible to immediately output a predetermined warning sound based on the output of this ultrasonic sensor section, and when an intruder approaches, the interface immediately operates and the warning sound For example, the size can be set to be variably set, so that the presence of an intruder can be widely known inside and outside the crime prevention area, and each component functioning as described above can be moved to a movable box body. Since it is equipped with it, it is highly portable and can be freely placed anywhere you want to capture an intruder, which makes it possible to capture an intruder and output a warning sound. It is possible to provide a practical security device unprecedented that can be expected sufficient effect to.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention, FIG. 2 is a front view showing a kennel-like box body equipped with the components shown in FIG. 1, and FIG. 3 is a part of FIG. FIG. 4 is a front view showing a mounting state of the ultrasonic sensor portion on the box, FIG. 4 is a cutaway right side view, FIG. 4 is a partially cutaway rear view of FIG.
FIG. 7 is a cross-sectional view taken along the line VI-VI in the figure, and FIG. 7 is a left side view of FIG. 1a ... Ultrasonic sensor section, 1 ... Sensor circuit, 2 ... Voice synthesis circuit, 3 ... Voice output means, 4 ... Interface circuit, 6 ... Volume automatic switching circuit which is a main part of the volume switching means, 10 ... Box.

Continuation of the front page (56) Reference JP-A-52-117095 (JP, A) Actually open 59-174679 (JP, U) Actually open 63-1296 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An ultrasonic sensor unit that receives reflected ultrasonic waves from an intruder through the air, and a sensor circuit that outputs an intruder capture signal based on the reflected ultrasonic waves received by the ultrasonic sensor unit. And an abnormality display section that operates based on the intruder capture signal output from the sensor circuit. The abnormality display section is activated by being activated by the intruder capture signal from the sensor circuit and has a predetermined synthesized sound. And a voice output means for amplifying the output of the voice synthesizer circuit and outputting it as a warning sound, and the output of the voice output means between the voice output means and the voice synthesizer circuit. An automatic volume switching circuit for switching the volume of sound is provided, and an intruder approach distance calculation function that operates based on an intruder capture signal output from the sensor circuit to calculate an approach distance with the intruder, and An interface circuit having an output sound variable setting control function for energizing the audio output means according to the size of the approach distance to the occupant and appropriately variably setting the volume of the output sound of the audio output means A crime prevention device provided between the automatic switching circuit and the sensor circuit, wherein the sensor circuit, the abnormality display section, the automatic volume switching circuit, and the interface circuit are provided in a movable box.