JP3756330B2 - Security sensor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a security sensor for a general house that can be easily installed.
[0002]
[Prior art]
Conventionally, in buildings and stores, crime prevention sensors have been installed to detect illegal intrusions and prevent damage such as theft. For example, windows can be plowed, window glass broken, humans in buildings, etc. If a change in the amount of heat is detected, an alarm sound will be output to threaten the intruder.
[0003]
[Problems to be solved by the invention]
However, the conventional security sensor requires wiring for power supply such as AC 100 V or DC 12 V, and cannot be easily attached. In particular, in a general house, it has been difficult to easily install on a window frame or the like in order to prevent intrusion from a window.
[0004]
In addition, the conventional security sensor outputs a warning sound at a high volume when a human body is detected, so it is sufficiently intimidating for intruders, but malfunctions due to small animals, sunlight, curtain fluctuations, etc. When it was, it became annoying in the neighborhood, especially unsuitable for ordinary houses.
In addition, crimes such as pranks and peeping are increasing in recent times, so the importance of crime prevention is increasing, especially when women are living alone. The development of a simple crime prevention sensor with the main purpose of leaving was desired. Also, even if you contract with a security company for crime prevention, there is a considerable user cost, so it is difficult for the user to easily introduce it. Therefore, a security sensor that can be easily installed and installed by yourself is desired. It was rare.
[0005]
In addition, there is a glass break sensor that detects the breaking of a window glass and emits an alarm sound for a general house. However, since it cannot be detected unless the glass is broken, the effect of preventing crime is poor.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a security sensor that can be easily installed for ordinary houses and prevents crimes.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the security sensor according to claim 1 of the present invention is a security sensor for outdoor installation configured to be driven by a power source supplied from a battery or a solar battery built in a housing, A human body detection sensor unit for detecting a human body entering a predetermined area and an alarm output means for outputting an alarm sound when the human body detection sensor unit detects a human body are housed in a housing and configured integrally. When the human body is continuously detected by the human body detection sensor unit, the output means divides the alarm sound output mode into at least two stages of the preliminary alarm and the main alarm as time elapses from the start of detection. varying Te, at the preliminary alarm and the alarm, changing the output period of the alarm sound, and characterized in that to increase the volume of the alarm sound than preliminary alarm in the alarm
[0007]
Since this security sensor is driven by power supply from a built-in battery or a solar battery, wiring for power supply becomes unnecessary. A pyroelectric infrared sensor is suitable for the human body detection sensor unit. Further, the output alarm sound may be a voice message in addition to a buzzer sound.
[0008]
Also, if the volume of the alarm sound is increased from a small volume to a large volume as time passes, the alarm sound output stops at the first stage in the case of a false alarm, so that the neighborhood is not disturbed. Moreover, if the warning sound becomes louder, the intimidating effect on the intruder is further enhanced.
[0009]
According to a second aspect of the present invention, in the first aspect of the present invention, the apparatus further comprises volume setting means for presetting the volume of the alarm sound output from the alarm output means. The volume can be set for each stage of the alarm sound that changes in stages.
[0010]
According to a third aspect of the present invention, the apparatus further includes power switch means for operating to turn on / off the power. Thus, if the power is turned off, human body detection can be prevented from being performed.
According to a fourth aspect of the present invention, the apparatus further comprises wireless signal transmission means for transmitting a wireless signal to the receiver when the alarm output means outputs an alarm sound. The receiver may be configured to output an alarm sound when receiving a wireless signal, and thus it can be understood that a human body has been detected even at a distant place in the dwelling unit.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an example of the configuration of the security sensor.
The security sensor S is driven by a power source supplied from a battery 5 built in the housing, and includes a CPU 1 that controls each part, and a human body detection sensor unit 2 that detects a human body that enters a predetermined area. The buzzer 4 is an alarm output means for outputting an alarm sound when the human body detection sensor unit 2 detects a human body, and a power supply circuit 6 for supplying power from the battery 5 to each part.
[0012]
The human body detection sensor unit 2 is preferably a pyroelectric infrared sensor. The lens 3 collects infrared energy radiated from the human body, and the pyroelectric element in the sensor unit 2 senses changes in heat rays. , To detect the presence of the human body.
The alarm output means may be configured to output a voice message in addition to the buzzer 4. Furthermore, since the security sensor S is installed in an outdoor window frame (a sweeping window, a bay window, a bathroom window, etc.), a solar battery may be built in instead of the battery 5.
[0013]
The security sensor S is constructed integrally by housing the battery 5 in the housing and is driven by the power supply from the built-in battery 5, so that no wiring is required unlike the conventional security sensor. Can be installed. Moreover, since the power source (5), the human body detection sensor unit 2 and the alarm output means (4) are integrated, the system becomes compact and can be easily installed. A sensor can be realized.
[0014]
Furthermore, when a human body is detected by the human body detection sensor unit 2 outdoors, an alarm sound is output, giving an intimidating feeling that the intruder is being detected and exerting a threatening effect, thereby preventing crimes. It is possible to realize a crime prevention sensor for ordinary homes.
In addition, since the human body detection sensor unit 2 and the alarm output means (4) are integrated, an alarm sound can be output near the detection area of the sensor. It can effectively give a sense of intimidation that it has been detected and can exert a threatening effect. For example, even if the alarm sound is reduced to a certain level in consideration of the inconvenience of the neighborhood, the alarm sound can be sufficiently heard by the intruder, and a threatening effect can be exhibited.
[0015]
FIG. 2 shows an operation of the security sensor S in a time chart. Here, a case where the alarm mode is set in advance by a switch operation or the like is shown, and FIG. 2A shows an intruder (in this specification, human body detection formed outside a window or the like). In the case where an alarm sound is output because the person approaching the area without permission has been approaching, FIG.
[0016]
When the human body detection sensor unit 2 continuously detects the human body, the alarm sound output from the buzzer 4 is output stepwise as time elapses from the start of detection. In other words, if the human body is continuously detected, the alarm sound output mode is changed into two or more stages, and if the stage is advanced, the intruder may be in the detection area for a long time, It is not a false alarm, but can tell that there is actually an intruder.
[0017]
Here, as shown in (a), a preliminary alarm is output for a predetermined time Ta (for example, 20 seconds) after the detection input of the human body, and the human body is detected even after the time Ta has elapsed. For example, this alarm is output for a predetermined time Tb (for example, 1 minute). It should be noted that the alarm output is not limited to two stages of the preliminary alarm and the main alarm, and the alarm output may be divided into three or more stages.
[0018]
On the other hand, as shown in (b), if there is no human body detection input during the time Ta during which the preliminary alarm is output, dwellers, small animals such as dogs and cats have entered the detection area or have been dried. If the laundry enters the detection area due to wind or the like, the output of the preliminary alarm is stopped and the monitoring state is restored. If a resident enters the detection area, the preliminary alarm will stop if he leaves immediately, so there is no inconvenience to the neighborhood.
[0019]
For the output time Ta of the preliminary alarm, a time is set in accordance with the required time such as actual opening of the window and breaking of the window glass. If this time Ta is exceeded, this alarm is output. On the other hand, the output time Tb of this alarm shows that the intruder is currently detecting the human body, and it is sufficient to set a sufficient time for the threatening effect to be exhibited. Even when the human body is no longer detected, it is desirable to output continuously as shown in (a). In addition, when this alarm is output, in order to prevent the case where there is no person in the dwelling unit and the output of the alarm sound cannot be stopped, if it is sufficient for the intruder to leave, the main time will be It is better to stop the alarm.
[0020]
Thus, in the security sensor S of the present invention, the alarm sound is output step by step as time elapses from the start of detection. The intimidation and threatening effect of being detected can be further enhanced.
FIG. 3 is a time chart showing the operation of the security sensor S when the notification mode is set in advance by a switch operation or the like. This notification mode is mainly intended to notify the dweller that there is an intruder. Fig. 3 (a) shows a case where an intruder is approaching and outputs an alarm sound. Fig. 3 (b) shows a case of false alarm, but both perform a preliminary alarm only while detecting a human body. It is designed to output.
[0021]
Next, an example of another operation of the security sensor S is shown in FIG. Here, a case is shown in which a volume setting means for presetting the volume of an alarm sound output from the buzzer 4 serving as an alarm output means is provided, and FIG. 4 (a) sets the volume to a low level (for example, 60 dB). (B) in the figure shows a case where the volume is set to a high level (for example, 70 dB).
The volume of the alarm sound can be set in this way because there are various places where the security sensor S is installed, and whether the emphasis is on prevention of inconvenience in the neighborhood or the threat to the intruder, etc. This is because their needs are different. Although the case where the volume can be set in two steps is shown here, the volume setting means may be configured as a volume switch so that the volume can be set in three or more steps.
[0022]
Here, the buzzer 4 has the same sound volume at each stage of the preliminary alarm and the main alarm, so the output period of the alarm sound is changed in order to identify both. For example, a sound such as “beep” is output for the preliminary alarm, and “beep” is output for this alarm.
Here, as described above, even if the detection input of the human body is continued, the output of this alarm is automatically stopped when the predetermined time Tb elapses.
[0023]
Next, FIG. 5 shows a case where only the preliminary alarm can adjust the volume. FIG. 5A shows a case where the volume of the preliminary alarm is set to a low level and the volume of the main alarm is set to a large level in advance. On the other hand, FIG. 5B shows the volume of the preliminary alarm set to a high level. Is determined in advance. In the security sensor S, the volume of the preliminary alarm may be set to a small volume and the volume of the main alarm may be set to a large volume in advance without providing the volume adjusting means. In any case, as shown in (a), the buzzer 4 serving as the alarm output means can change the volume of the alarm sound at each stage of the alarm output.
[0024]
In general, as shown in (a), the volume of the alarm is changed from a small volume to a large volume as time passes. Then, in the case of misinformation, the alarm sound output can be stopped at the first stage, so that the neighborhood is not disturbed. However, even a low volume alarm sound has a psychological effect that an intruder is detected, gives a sufficient intimidation, and exerts an intimidating effect and an effect of discouraging crime. Also, if the intruder does not leave after a lapse of time, the intimidating effect on the intruder will be further enhanced if the alarm sound increases.
[0025]
Moreover, the security sensor S includes power switch means that is operated to turn on and off the power. FIG. 6 shows an operation corresponding to turning on and off the power. When the power is turned off, the human body detection sensor unit 2 may stop driving, or the human body detection sensor unit 2 is driven, but the driving of the buzzer 4 may be stopped.
[0026]
As can be seen from the figure, whether the preliminary alarm or the main alarm is being output, if the power switch is turned off, the alarm sound will stop even if there is a human body in the detection area. No alarm sound is output even when a human body is present in the detection area with the power off.
Conversely, if a human body is present in the detection area when the power switch is turned on, output of an alarm sound is started. At this time, if there is already a human body detection input for the preliminary alarm output time Ta or longer, the preliminary alarm may not be performed and the alarm may be output.
[0027]
The power switch may include a timer, a brightness sensor, and the like, and may be automatically turned on / off depending on the time zone, ambient brightness, and the like. For example, the power switch is turned off during the day and the power switch is turned on at night. Conversely, the power switch may be turned on when going out in the daytime.
Next, another configuration of the security sensor is shown in a block diagram in FIG.
[0028]
The security sensor SA further includes a radio signal transmission unit 7 and an antenna A as wireless signal transmission means for transmitting a wireless signal to a receiver (not shown) as compared with the configuration of FIG.
When the human body detection sensor unit 2 detects a human body, the CPU 1 outputs an alarm sound from the buzzer 4 serving as an alarm output means, and transmits a signal indicating that the human body has been detected by the radio wave signal transmission unit 7. The wireless signal may continue to be transmitted while the human body is being detected, or when the human body is detected for the first time, when the detection is completed, or when the alarm sound output stage changes. It may be output according to the above.
[0029]
The receiver is installed in a dwelling unit or the like, and outputs a warning sound when receiving a wireless signal from the security sensor S. As a result, it is immediately known that a human body has been detected in the vicinity of the window even at a location away from the security sensor S.
Next, a method for detecting a human body using the security sensors S and SA will be described.
FIG. 8 is a diagram schematically showing the configuration of the human body detection area formed by the security sensors S and SA. Here, the human body detection sensor unit 2 is provided with two sensors, and is directed toward the bottom of the window. Each detection area a1, a2 is formed.
[0030]
The figure (a) is the figure which looked at the detection area from the side, The figure (b), (c) is the figure which looked at the detection area from the upper part. The configuration of the detection areas a1 and a2 when viewed from above may be either (b) or (c). As described above, the security sensors S and SA of the present invention are attached to a window frame or the like to form the human body detection areas a1 and a2, so that the windows are open or the windows are not locked. However, if the human body M approaches, the crime prevention function can be fulfilled.
[0031]
Such security sensors S and SA can detect a human body correctly by comprising two detection areas a1 and a2. FIG. 9 shows a human body detection method in a time chart.
Here, as shown in FIGS. 9A and 9C, the two sensors (sensor 1 and sensor 2) of the human body detection sensor unit 2 adopt a pulse count method, and count two pulses. As shown in (b) and (d), each timer (timer 1 and timer 2) is operated, and depending on the time difference t at the start of operation of each timer, the human body has passed or is in other cases If it is determined that the human body has passed, an alarm is output ((e) to (g)).
[0032]
If the time difference t at which the timer starts is between 0.5 and 1.0 seconds, for example, it is determined that the human body has moved and is approaching a window or the like. However, if it is less than that range, it is determined that the detection is due to clothes or curtains falling, sunlight, or the like. The criterion for determining the time difference t is obtained from the distance between the detection areas a1 and a2 and the normal moving speed of the human body. By making such a determination, malfunctions of the security sensors S and SA are reduced.
[0033]
Next, the structure of the security sensors S and SA will be described.
10A and 10B are diagrams showing an example of the structure, in which FIG. 10A shows the front and left sides of the housing body, and FIG. 10B shows the front and left and right sides of the body cover that covers the housing body.
The security sensors S and SA are powered by a battery 5 housed in a battery box 5 ′. The human body detection sensor unit 2 is provided with a sensor rotating body 2a, and the detection direction of the sensor can be changed by operating the detection direction adjusting unit 9 (adjustment knob).
[0034]
A power switch 8 is provided on the side opposite to the detection direction adjusting unit 9, and if the power is turned off by the power switch 8, an alarm sound is output from the buzzer 4 even if a human body exists in the detection area. Will not be.
Next, the attachment structure of the security sensors S and SA will be described with reference to FIG.
The security sensors S and SA can be easily attached to the eaves or the window by closing the back cover 11 and attaching the back cover 11 to the base plate 12.
[0035]
In the figure, reference numeral 10 denotes a volume switch composed of dip switches. The volume of the alarm sound (preliminary alarm, main alarm) is determined by the setting of the volume switch. It should be noted that the volume switch 10 is preferably built in as shown in the figure so that the setting is not changed without permission, but it can be operated from the outside in the same manner as the detection direction adjusting unit 9 so that the volume can be arbitrarily changed. It may be configured as possible. In the figure, reference numeral 3 ′ denotes a lens cover that covers the lens 3.
[0036]
With this structure, the security sensors S and SA can be easily attached if the base plate 12 is attached with a double-sided tape or the like with a sash frame, shutter door, shutter shutter door, screen door frame or the like. In addition, even when moving, it can be easily removed, leaving no trace of removal, so there is no need to pay for repair costs. Furthermore, since the main body can be easily separated from the base plate 12, the battery 5 can be easily replaced.
[0037]
【The invention's effect】
As can be understood from the above description, the security sensor according to claim 1 of the present invention can be easily installed by integrating the power source, the human body detection sensor unit, and the alarm output means, so that the user can easily A security sensor for ordinary homes that can be installed outdoors can be realized. Furthermore, when a human body is detected outdoors by a human body detection sensor unit, an alarm sound is output to detect intruders themselves. It is possible to realize a crime prevention sensor for ordinary homes that provides a threatening effect and prevents crimes.
[0038]
Further, in claim 1, an alarm sound can be output stepwise as time elapses from the start of detection, and the alarm sound output mode is changed for the intruder by changing the period between the preliminary alarm and the main alarm. The intimidation and intimidation effect that it is detected can be further enhanced.
Furthermore, since the volume of the warning sound is low at the initial preliminary warning stage, even if it is a false alarm, the neighborhood is not disturbed, and the intruder is intimidated that he / she is detected. Can exert a threatening effect. On the other hand, if the intruder does not leave even after a lapse of time, the alarm sound is increased, so that the intimidating effect on the intruder can be further enhanced.
[0039]
In claim 2, since the volume of the alarm sound can be set in advance, it suits the user's needs, such as whether to place emphasis on prevention of nuisance in the neighborhood according to the installation location of the security sensor, or on the threat to intruders. The crime prevention function can be demonstrated.
According to the third aspect, since the power can be turned on / off by the power switch, the security function can be activated only when necessary.
[0040]
According to the fourth aspect of the present invention, since the wireless signal is transmitted at the same time when the alarm sound is output, it is possible to output the alarm sound even at the receiver side, and it can be understood that the human body is detected even at a distant place.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an example of the configuration of a security sensor of the present invention.
FIG. 2 is a time chart showing an example of the operation of the security sensor of the present invention (alarm mode).
FIG. 3 is a time chart showing another example of the operation of the security sensor of the present invention (informing mode).
FIG. 4 is a time chart showing another example of the operation of the security sensor of the present invention (volume setting).
FIG. 5 is a time chart showing another example of the operation of the security sensor of the present invention (volume change).
FIG. 6 is a time chart showing another example of the operation of the security sensor of the present invention (power on / off operation).
FIG. 7 is a block diagram showing another example of the configuration of the security sensor of the present invention.
FIG. 8 is a diagram showing an example of a human body detection area formed by the security sensor of the present invention.
9 is a time chart showing an example of the operation of the security sensor in the human body detection area shown in FIG. 8. FIG.
FIG. 10 is a diagram showing an example of the structure of a security sensor according to the present invention.
FIG. 11 is a diagram showing an example of a security sensor mounting structure according to the present invention.
[Explanation of symbols]
S, SA Security sensor 1 CPU
2 Human body detection sensor unit 4 Buzzer 5 Battery 7 Radio wave signal transmission unit 8 Power switch 9 Detection direction adjustment unit 10 Volume switch Ta Preliminary alarm output time Tb Main alarm output time a1, a2 Human body detection area

Claims (4)

A security sensor for outdoor installation configured to be driven by a power source supplied from a battery or solar battery built in the housing,
A human body detection sensor unit for detecting a human body entering a predetermined area and an alarm output means for outputting an alarm sound when the human body detection sensor unit detects a human body are housed in the housing and configured integrally. ,
When the human body is continuously detected by the human body detection sensor unit, the alarm output means sets the alarm sound output mode to at least 2 of the preliminary alarm and the main alarm as time elapses from the start of detection. A security sensor characterized in that the alarm sound output cycle is changed between the preliminary alarm and the main alarm, and the volume of the alarm sound is larger than that of the preliminary alarm in the main alarm . The security sensor according to claim 1 , wherein the alarm output means changes an output period of an alarm sound at each stage of alarm output.   The security sensor according to claim 1 or 2, further comprising a volume setting means for presetting a volume of an alarm sound output from the alarm output means. The security sensor according to any one of claims 1 to 3 , further comprising power switch means for operating to turn on and off the power.

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