JP4039331B2 - Intrusion detection device and intrusion detection program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for detecting entry into a building or the like.
[0002]
[Prior art]
Conventionally, various techniques for detecting an intrusion into a building such as a house are known.
[0003]
As a technique for detecting such an intruder into a house or the like, there is a technique for detecting vibration of a window or the like (for example, see Patent Document 1).
[0004]
FIG. 1 is a diagram for explaining an outline of a technique using vibration detection of a window or the like for detecting an intruder into the house or the like. In FIG. 1, the opening / closing means such as the window 110 of the house 100 is provided with a security sensor 120 that detects vibration applied to the window or the like when the window is opened by an intruder. This security sensor 120 is connected to a security contractor 200 or the like that performs crime prevention work.
[0005]
However, in the above technique, strong vibration is applied to the window 110 or the like when a small stone such as a stray cat contacts (S1002) or a strong wind (S1003) when a small stone such as a stray cat or the like touches the window glass (S1001 in FIG. 1). Even when vibrations due to factors other than the intrusion occur (S1004), such as when given, there is a possibility that the sensor 120 determines that the intrusion has occurred (S1005). Therefore, with this technology, when an intrusion is detected, there is a possibility that an erroneous report (S1006) is made to the security contractor 200 or the like.
[0006]
Moreover, as a technique for detecting an intruder into a house or the like, a technique for detecting opening / closing of a window (see, for example, Patent Document 2) can be given. FIG. 2 is a diagram illustrating an outline of a technique for detecting opening / closing of a window in order to detect an intruder into a house or the like. In FIG. 2, opening / closing of the window 110 is detected by a sensor 130 attached to the window 110 of the house 100.
[0007]
However, in the above technique, if the intruder 300 notices the presence of the sensor 130 (eg, S1101 in FIG. 2) by peeping out of the window 110 at the time of intrusion, a hole is made in the glass of the window 110. (S1102), the sensor 130 may be removed or the alarm setting may be canceled so that the sensor does not operate (S1103). In such a case, since the attached sensor 130 does not operate and the intrusion cannot be detected, there is a possibility that the house 100 is easily invaded (S1104).
[0008]
Another example of a technique for detecting an intruder into a house or the like is a technique for detecting opening / closing of a window (see, for example, Patent Document 3). Moreover, the technique (for example, refer patent document 4) which detects opening and closing of a door is mentioned.
[0009]
FIG. 3 is a diagram for explaining another example of the technique for detecting opening / closing of the window and the outline of the technique for detecting opening / closing of a door (a hinged door).
[0010]
3, the house 100 includes various types of windows 110 and doors such as a sliding door 140, a hinged door 150, a folding door (not shown), or a shutter type (not shown). Therefore, in the technique for notifying the intrusion shown in FIG. 3, the sensors 160, 161, 162 corresponding to the shape of the opening must be attached (S1201 in FIG. 3). For this reason, in this technique, the sensors 160, 161, 162 suitable for the respective doors are separately prepared. The sensors 160, 161, and 162 are also attached in different ways (S1202). Therefore, in the technique using the sensor according to the shape of the opening, it takes time to install the sensor (S1205). In addition, when the sensors 160, 161, and 162 are installed in accordance with the shape of the opening, the detection information regarding the state of each opening is individually managed, and it is difficult to perform unified management (S1203). As such a case, for example, there may be a case where information other than the detection information of the entrance door cannot be acquired or information other than the detection information of the window glass cannot be acquired depending on the place where the resident is present. As described above, when the sensors 160, 161, and 162 are installed in accordance with the shape of the opening, it may be felt that it is troublesome to perform in the house or the like (S1206).
[0011]
Furthermore, when the sensors 160, 161, 162 are installed in accordance with the shape of the opening, it is necessary to attach one sensor to each window or door that may be invaded. In some cases, the number of places became uneconomical (S1204).
[0012]
In the technique of installing the sensors 160, 161, 162 in accordance with the shape of the opening, there is a possibility that it is determined that the sensor 160, 161, 162 is not installed in each house due to the various factors described above (S1207).
[0013]
Some conventional security systems require a sensor to be attached to an opening such as a window or door, and wiring from the sensor to an alarm device.
[0014]
FIG. 4 is a diagram illustrating an example of problems in various conventional security systems. As shown in FIG. 4, in various conventional security systems, it is necessary to perform wiring for each opening sensor 171 attached to each opening 170 of the house 100 (S1301 in FIG. 4). For this reason, in the conventional various security systems, the wiring in the house is troublesome (S1302), and the installation work is troublesome for the installer and the resident (S1305). Moreover, in the conventional various security systems, if the wiring 172 between the opening sensor 171 and the alarm device 173 is increased, it may be an obstacle to the resident, and the indoor aesthetics (interior) may be impaired (S1303).
[0015]
Furthermore, in various conventional security systems, for example, when the intruder 300 has placed the wiring 172 at a position where the intruder 300 can visually check, the intruder 300 may perceive the wiring 172 of the sensor 171 ( S1304). In this case, the wiring 172 is cut by the intruder 300 (S1306), and the opening sensor 171 may be easily released.
[0016]
Moreover, in the conventional various security systems, the technique (for example, refer patent document 5) which detects the intruder into a house etc. using infrared rays is mentioned.
[0017]
FIG. 5 is a diagram for explaining an outline of a technique for detecting an intruder into a house or the like using infrared rays. In this case, the infrared sensor 180 installed in the house 100 reacts not only to the intruder 300 but also to a small animal 400 such as a stray cat or a small bird that has passed nearby (S1401 in FIG. 5), which may be erroneously reported. (S1402). When such an infrared sensor 180 is used, when the resident is at home (S1403), the infrared sensor 180 is usually turned off (S1404). Cannot be handled and can easily be entered (S1405).
[0018]
Furthermore, as a technique for detecting an intruder into a house or the like, there is a technique for detecting opening / closing of an opening / closing means (for example, see Patent Document 6).
[0019]
FIG. 6 is a diagram for explaining an outline of a technique for detecting an intruder by detecting opening / closing of the opening / closing means. Normally, in this technique, a binary value indicating whether the window 110 serving as the opening / closing means is completely closed or not is determined. Therefore, it is difficult to detect that the window 110 that has already been opened a little (for example, about 10 cm) is greatly opened to a width that a person can enter (for example, about 50 cm).
[0020]
In the technique of detecting the intruder by detecting opening / closing of the opening / closing means, for example, the following problems may occur. That is, in this technique, when the resident is at home (S1501 in FIG. 6), for example, when the window is slightly opened for ventilation (S1502), the sensor does not operate (S1503). Even if 110 is opened wide and it does not notice (S1504), it can be easily entered (S1505). Therefore, there is a possibility that the intruder cannot be detected by the technique for detecting the intruder by detecting opening / closing of the opening / closing means.
[0021]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-190069
[Patent Document 2]
JP-A-6-309572
[Patent Document 3]
JP-A-6-309572
[Patent Document 4]
Japanese Patent Laid-Open No. 10-289388
[Patent Document 5]
JP-A-6-129903
[Patent Document 6]
Japanese Patent Laid-Open No. 10-289388
[0022]
[Problems to be solved by the invention]
As described above, it has been considered to use various technologies to notify intrusions. However, in any of the technologies, intrusions from building opening / closing means such as windows and doors are transmitted to the respective opening / closing means. It was not easy to reliably detect with a suitable method. Moreover, when applying the said technique to the existing building, there also existed problems, such as taking time for construction work or construction cost increasing.
[0023]
The present invention has been made in view of the above problems, and a technique for reliably detecting intrusion from various opening / closing means in a building such as a window or a door can be easily applied to the building. It is a problem to be solved.
[0024]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the above problems.
[0025]
That is, the present invention transmits a sound wave toward the opening of the opening / closing means provided in the building, receives the sound wave, calculates an opening area change of the opening based on the received sound wave, An intrusion from the opening / closing means is detected based on a change in the opening area, and when an intrusion from the opening / closing means is detected, the intrusion is notified.
[0026]
In the present invention, the change amount of the opening is calculated from the change of the sound wave by using the sound wave for detecting the opening state of the opening / closing means.
[0027]
Therefore, according to the present invention, the intrusion can be reliably detected without being caught by the state of the opening / closing means, for example, when the opening / closing means is not completely closed.
[0028]
In the present invention, sound wave information indicating the intensity of the received sound wave may be detected, a change amount of the sound wave information may be calculated, and the opening area change may be calculated based on the change amount.
[0029]
In the present invention, the change in the sound wave from the opening is calculated based on the numerical value indicating the intensity of the sound wave such as the volume and the sound pressure.
[0030]
Therefore, according to the present invention, the intrusion from the opening / closing means can be reliably detected without being caught by the state of the opening / closing means.
[0031]
Further, the present invention may detect the intrusion when the change amount of the sound wave information satisfies a threshold condition for the change amount of the sound wave information stored in advance.
[0032]
In the present invention, as the opening area of the opening increases, the amount of change in the received sound wave is determined based on the threshold value.
[0033]
Therefore, according to the present invention, the intrusion from the opening / closing means can be reliably detected without being caught by the state of the opening / closing means.
[0034]
The present invention also provides: The receiving means has a function of detecting the frequency of the received sound wave, and the receiving means Have a predetermined frequency Recognition Receiving certificate permission sound wave did in case of, Notification means The intrusion may not be notified.
[0035]
In the present invention, a person who is permitted to enter a building is allowed to have a transmitter that generates an authentication permission sound wave. And when this authentication permission sound wave is detected, even if it is a case where an opening part changes, this invention does not notify an intrusion and permits entrance.
[0036]
Therefore, according to the present invention, an intruder other than a regular person can be reliably detected.
[0037]
Furthermore, in the present invention, a non-audible sound may be used as the sound wave.
[0038]
In the present invention, a non-audible sound, which is a sound wave having a frequency that cannot be heard by humans, is used as a sound wave for detecting an intruder. This inaudible sound is synonymous with ultrasound.
[0039]
Therefore, according to this invention, this detection can be implemented without noticing that an intruder has been detected in advance.
[0040]
The present invention may be a program that realizes the function of any of the above devices. In the present invention, such a program may be recorded on a computer-readable storage medium.
[0041]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an intrusion detection apparatus according to a preferred embodiment of the present invention will be described with reference to FIGS.
[0042]
<Outline of the present invention>
FIG. 7 is a diagram for explaining the outline of the present invention. As shown in FIG. 7, the present invention is not only a binary of whether an opening 21 of an opening / closing means such as a door or a window 20 provided in a building such as a house 100 is open or closed. The resident (both at home and at home) is notified of the presence or absence of the intruder 300 by reliably detecting the amount of change in the degree (opening area) (S2 in FIG. 7) (S2).
[0043]
<Principle of the present invention>
As a feature of the present invention, in order to detect an intruder, a sound wave of an inaudible sound (ultrasonic wave) is used to detect an opening state. The property of the sound wave is difficult to be transmitted indoors when there is a wall or when a window or the like is closed. In addition, the property of sound waves tends to be transmitted indoors when there is an opening such as a window being opened. In the following description, all sound waves used in the intrusion detection device are inaudible sounds.
[0044]
FIG. 8 is a diagram for explaining the principle of the present invention. In the present invention, the sound wave 2 is transmitted toward the opening 21 from the sound wave transmitter 11 installed outside the house 100. In the present invention, the indoor sound wave interpretation device 12 receives the sound wave 2 and detects information indicating the intensity of the sound wave 2.
[0045]
In FIG. 8, when the opening 21 of the house 100 or the like is only slightly open (the area of the opening is small) (a), the sound wave 2 transmitted indoors is small (S10 in FIG. 8), and the sound wave interpretation device 12 is The amount of the received sound wave 2 is also small (S11). In FIG. 8, when the opening 21 is greatly open (the area of the opening is large) (b), a large amount of sound waves 2 are transmitted indoors (S12), and the sound waves received by the sound wave interpretation device 12 are received. The amount of 2 also increases (S13).
[0046]
In the present invention, the state quantity indicating the intensity of the sound wave 2 typified by the sound volume and the sound pressure of the sound wave 2 is replaced with an opening area representing the vacant state of the opening 21 of a house or the like. Accordingly, the present invention regards the change amount of the sound wave 2 received by the indoor sound wave interpretation device 12 from the outdoor sound wave transmitter 11 as a change in the area of the opening 21 of the house 100 or the like, and is applied to security applications. is there.
[0047]
<Configuration of intrusion detection device>
An intrusion detection device according to an embodiment of the present invention includes a sound wave transmitter and a sound wave interpretation device. In order to perform intrusion detection processing in a building such as a house, this intrusion detection apparatus installs a sound wave transmitter outdoors and the sound wave interpretation device indoors such as a house. In the following description, this sound wave transmitter corresponds to the transmission means of the present invention, and the sound wave interpretation device corresponds to the reception means, opening state calculation means, intrusion detection means, and notification means of the present invention.
[0048]
And this intrusion detection device is a binary determination whether or not opening / closing means such as windows and doors are open based on the criteria of the intensity and frequency of the sound wave received by the indoor sound wave interpretation device from the outdoor sound wave transmitter. To do. Moreover, this intrusion detection apparatus detects the opening area of an opening part based on the information of a sound wave, when the opening / closing means is open. Based on these pieces of information, the intrusion detection apparatus detects that a window or door has been illegally opened by an intruder and notifies a resident or the like.
[0049]
FIG. 9 is a diagram illustrating a configuration of the intrusion detection device. The intrusion detection device transmits sound waves from the outdoor sound wave transmitter 11 toward the opening 21 of the opening / closing means 20 such as a window or door (S20 in FIG. 9). And the sound wave 2 is transmitted indoors from the opening part 21, and the sound wave interpretation apparatus 12 receives the sound wave 2 (S21).
[0050]
After receiving the sound wave 2, the sound wave interpretation device 12 analyzes the numerical value indicating the intensity of the sound wave, such as the amount of sound wave and the sound pressure, and calculates the amount of change in the area of the opening 21 (S22). When the sound wave interpretation device 12 detects an intruder from the amount of change, the sound wave interpretation device 12 notifies the resident of the intrusion (S23).
[0051]
<Functional block of this intrusion detection device>
Next, functional blocks of the intrusion detection device will be described.
[0052]
FIG. 10 is a functional block diagram of the intrusion detection device. As shown in FIG. 10, the intrusion detection device 10 includes a sound wave transmitter 11 and a sound wave interpretation device 12.
[0053]
Next, the function in the sound wave transmitter 11 will be described. The sound wave transmitter 11 includes a sound wave adjustment function 1010 and a sound wave transmission function 1011.
[0054]
The sound wave adjustment function 1010 adjusts the frequency of the sound wave output from the sound wave transmitter 11 and the intensity of the sound wave. At this time, the frequency and the intensity of the sound wave may be adjusted manually by the installer or the user, or may be automatically set by negotiating with another sound wave transmitter.
[0055]
The sound wave transmission function 1011 outputs sound waves having the frequency and intensity set by the sound wave adjustment function 1010. With this function, the sound wave transmitter 11 transmits sound waves into the air.
[0056]
Next, functions in the sound wave interpretation device 12 will be described. The sound wave interpretation device 12 includes a sound wave reception function 1021, a sound wave analysis function 1022, an opening threshold value setting function 1023, an opening state determination function 1024, an abnormality notification function 1025, a communication function 1026, and a threatening function 1027.
[0057]
The sound wave receiving function 1021 receives the sound wave transmitted from the sound wave transmitter 11.
[0058]
The sound wave analysis function 1022 analyzes the sound wave acquired by the sound wave reception function 1021. The sound wave analysis function 1022 determines the identification of the sound wave transmitter 11, the amount of change in the sound wave intensity, and the like when there are a plurality of sound wave transmitters 11 serving as sound wave sound sources based on the frequency and volume of the sound wave.
[0059]
The opening threshold value setting function 1023 sets, for each sound wave transmitter 11, a threshold value of the intensity of sound waves regarded as intrusion detection and stores the threshold value.
[0060]
The opening state determination function 1024 compares the sound wave information acquired by the sound wave analysis function 1022 with the value set by the opening threshold value setting function 1023. Judge. When it is determined that an intrusion has occurred, the opening state determination function 1024 instructs the abnormality notification function 1025, the communication function 1026, and the threatening function 1027 to perform processing for notifying the intrusion.
[0061]
The abnormality notification function 1025 is a function for notifying indoor residents that an abnormality has occurred. The means for notifying includes a method using sound such as a siren or bell, light such as a flashlight, characters or pictures by a display device or the like.
[0062]
The communication function 1026 notifies a resident who is indoors or in a remote place that an abnormality has occurred. This communication function 1026 includes notification by a mobile phone, transmission of an image taken by a digital camera (not shown), and communication by e-mail. Any communication method of the communication function 1026 may be used as long as information can be reliably transmitted to a resident such as a telephone line, a LAN, or various wireless communication means.
[0063]
The threatening function 1027 threatens the intruder in order to eliminate the intruder. Specifically, threats such as sirens and bells, and threats such as flashlight are included.
[0064]
Next, the hardware of the sound wave transmitter 11 will be described.
[0065]
FIG. 11 is a hardware block diagram of the sound wave transmitter 11. The sound wave transmitter 11 includes an input unit 1110, a memory unit 1111, an information output unit 1112, a sound wave adjustment unit 1113, an oscillation unit 1114, an amplification unit 1115, a sound wave output unit 1116, and an information DB (database) management unit 1117.
[0066]
The input unit 1110 allows the installer or user to set the intensity or frequency of the sound wave output from the sound wave transmitter 11 or to instruct the start or stop of sound wave output. Specific examples of the configuration of the input unit 1110 include means such as a knob, a toggle switch, a button, a mouse, and a keyboard. That is, the configuration of the input unit 1110 is not limited as long as the installer or the user can input information reliably.
[0067]
The memory unit 1111 stores the input setting information and the like. The memory unit 1111 may have any configuration as long as information can be reliably stored, such as a hard disk or a flash memory.
[0068]
The information output unit 1112 outputs the input setting information and the like for visual confirmation. Specific examples of the configuration of the information output unit 1112 include a liquid crystal display, an LED display, and a speaker. That is, the information output unit 1112 may be configured as long as it can output information reliably.
[0069]
The sound wave adjustment unit 1113 adjusts the frequency of sound waves to be output, the intensity of sound waves, and the like.
[0070]
The oscillating unit 1114 is a part that oscillates a sound wave to be output. Specific examples of the oscillating unit 1114 include various oscillators such as a crystal oscillator and a ceramic oscillator.
[0071]
The amplifying unit 1115 amplifies the sound wave transmitted from the oscillating unit 1114. Specific examples of the amplifying unit 1115 include a general amplifier.
[0072]
The sound wave output unit 1116 outputs the sound wave generated by the oscillation unit 1114 into the air. Specific examples of the sound wave output unit 1116 include a speaker.
[0073]
Next, the hardware of the sound wave interpretation device 12 will be described.
[0074]
FIG. 12 is a hardware block diagram of the sound wave interpretation device 12. The sound wave interpretation device 12 includes a sound wave reception unit 1210, a communication unit 1211, an output unit 1212, an input unit 1213, a calculation unit 1214, a memory unit 1215, an information DB (database) management unit 1216, and a program / data storage unit 1217.
[0075]
First, the sound wave receiving unit 1210 receives a sound wave transmitted from the sound wave transmitter 11 and converts it into a digital signal that can be interpreted by a computer. The sound wave receiving unit 1210 includes a sound wave input unit 1210a, an amplification unit 1210b, a sound range filter unit 1210c, and a low sound range removing unit 1210d.
[0076]
The sound wave input unit 1210 a receives the sound wave transmitted from the sound wave transmitter 11. Specific examples of the sound wave input unit 1210a include a microphone.
[0077]
The amplification unit 1210b amplifies the sound wave acquired by the sound wave input unit 1210a. Specific examples of the amplifying unit 1210b include an amplifier.
[0078]
The sound range filter unit 1210c extracts only the sound range of the portion necessary for calculating the change amount of the opening from the sound wave diffused in the air. Specific examples of the sound range filter unit 1210c include a band-pass filter.
[0079]
The low sound range removing unit 1210d removes sound wave noise added during air propagation. Specific examples of the low sound range removing unit 1210d include a differentiation circuit.
[0080]
Next, each part other than the sound wave receiving unit 1210 will be described.
[0081]
The communication unit 1211 notifies the status information to a resident terminal (not shown) such as a mobile phone possessed by the resident. This status information is information that informs the presence or absence of an intruder detected by the intrusion detection device 10 and the status of the house. In addition, the situation information includes, for example, voice information, character information, image information, and the like. Specifically, the communication unit 1211 is configured to execute communication via the Internet, short-range wireless communication (for example, Bluetooth, wireless LAN), communication using a mobile phone, and the like, and information is accurately transmitted. If it is a thing, the structure is not ask | required.
[0082]
The output unit 1212 displays the set value of the sound wave, displays the analysis result of the sound wave, notifies the invader to the resident by sound, or notifies the alarm information. Here, the alarm information refers to information that, when an intruder is detected, emits a threatening voice toward the intruder or notifies a person in the vicinity that there is an intruder. Specific examples of alarm information include acoustic information such as sirens and bells, and visual information such as light from flashlights. Specific examples of the output unit 1212 include a display, an LED, and a speaker. That is, the configuration of the output unit 1212 is not limited as long as the above information is reliably transmitted to a resident or the like.
[0083]
The input unit 1213 receives setting information such as threshold information for determining the presence or absence of an intruder, or specific information of the sound wave transmitter 11 such as the ID or frequency of the sound wave transmitter 11. In addition, the input unit 1213 inputs indoor state information such as a resident's presence or absence, or accepts other operations. The input unit 1213 is also used when acquiring information indicating the situation when an abnormality such as intrusion detection occurs. Specifically, a resident such as a mouse, a keyboard, a microphone, a toggle switch, a button, or a sensor can surely input information, and the sound wave interpretation device 12 can surely understand the state of the building. If it is a thing, the structure is not ask | required.
[0084]
The calculation unit 1214 has a calculation function for operating each function according to the present embodiment by executing an intrusion detection program stored in the program / data storage unit 1217. The arithmetic unit 1214 is generally composed of a CPU (Central Processing Unit). Further, functions such as the sound wave analysis function 1022 and the opening state determination function 1024 are realized by the calculation unit 1214.
[0085]
The memory unit 1215 is an execution area (storage element such as a RAM / ROM) in which the arithmetic unit 1214 executes a program. In the memory unit 1215, setting information of the intrusion detection device 10, setting information input by a resident, indoor state information such as whether or not the resident is in the room, and the above-described various communications are acquired. Information is stored.
[0086]
The program / data storage unit 1217 is a program and data group for the sound wave interpretation device 12 to function. This program and data group include not only OS (operating system) and setting information, but also application software and data accompanying them. The program / data storage unit 1217 can also store voice and image information as data.
[0087]
Next, an example of the actual configuration of the sound wave transmitter 11 and the sound wave interpretation device 12 of the intrusion detection device 10 will be described.
[0088]
FIG. 13 shows an appearance of the sound wave transmitter 11 as an embodiment. The sound wave transmitter 11 includes a speaker 11a, a power switch 11b, a sound intensity display unit 11c, a volume increase button 11d, a volume decrease button 11e, a frequency display unit 11f, a frequency increase button 11g, and a frequency decrease button 11h.
[0089]
The speaker 11a outputs the set sound wave. The power switch 11b controls the power source of the sound wave transmitter, and transmits a sound wave that is set when the power switch 11b is ON, and does not transmit a sound wave when it is OFF.
[0090]
The sound intensity display unit 11c displays the set sound wave intensity. The unit of voice intensity is displayed in decibel [dB]. The sound wave transmitter 11 outputs a sound wave having the intensity displayed here.
[0091]
The volume increase button 11d and the volume decrease button 11e each control the intensity of sound waves to be output. That is, when the volume increase button 11d is pressed, the value of the volume display increases and the intensity of the generated sound wave increases. On the contrary, when the volume decrease button 11e is pressed, the display of the sound intensity display unit 11c and the intensity of the generated sound wave decrease.
[0092]
The frequency display unit 11f displays the set frequency of the sound wave. The frequency unit is displayed in [Hz] or [kHz]. And the sound wave transmitter 11 outputs the sound wave of the frequency currently displayed here.
[0093]
The frequency increase button 11g and the frequency decrease button 11h each control the frequency of the sound wave to be output. When the frequency increase button 11g is pressed, the frequency displayed on the frequency display unit 11f and the output frequency are increased. Conversely, when the frequency lowering button 11h is pressed, the frequency displayed on the frequency display unit 11f and the frequency to be output are reduced.
[0094]
The sound wave transmitter 11 controls sound waves to be output using these functions. Note that FIG. 13 shows an example in which the threshold is set to 100 dB and the transmission frequency is set to 25 kHz.
[0095]
FIG. 14 shows the appearance of the sound wave interpretation apparatus 12 as an embodiment. The sound wave interpretation device 12 includes a power switch 12a, a status display unit 12b, a set value increase button 12c, a set value decrease button 12d, a determination button 12e, a security mode setting button 12f, a speaker 12g, an abnormality display LED 12h, and a microphone 12i.
[0096]
The power switch 12 a controls the power supply of the sound wave interpretation device 12. That is, the sound wave interpretation device 12 receives the sound wave transmitted from the sound wave transmitter when the power is turned on by the power switch 12a and does not receive it when the power is turned off.
[0097]
The status display unit 12b displays information set in the sound wave interpretation device 12. As the information, for example, the ID number of the sound wave transmitter 11 to be set, the voice strength that is a threshold value for intrusion detection, the current voice strength, or a set frequency is displayed.
[0098]
The user or the setter sets the ID number, frequency, threshold value, and the like of the sound wave transmitter 11 by the set value increase button 12c, the set value decrease button 12d, and the enter button 12e. To change the set value, the set value increases with the set value increase button 12c, and the set value decreases with the set value decrease button 12d. Then, a predetermined set value is determined by the determination button 12e.
[0099]
The security mode setting button 12f is a button for setting a resident's home status and setting a security process according to the status. For example, it is possible to make a predetermined setting according to each situation such as setting so as not to stimulate an intruder when not at home and not outputting a threatening sound, and notifying a mobile phone when absent.
[0100]
The speaker 12g is used to output a threatening sound to the intruder or to notify the resident of the intrusion when at home.
[0101]
The abnormality display LED 12h is normally lit in green, and when there is an abnormality (notification of intrusion), when voice output is not possible, the indicator blinks red when notifying the resident that there is an intruder. To be notified.
[0102]
The microphone 12 i receives the sound wave transmitted from the sound wave transmitter 11. In FIG. 14, the threshold for intrusion detection is set to 60 dB.
[0103]
<Processing flowchart of this intrusion detection device>
Next, the process of this intrusion detection apparatus is demonstrated using a flowchart.
[0104]
FIG.15 and FIG.16 is a flowchart explaining the process of the sound wave transmitter 11 of this intrusion detection apparatus.
[0105]
FIG. 15 is a flowchart when transmission of sound waves from the sound wave transmitter 11 is started. First, the sound wave transmitter 11 determines whether or not the setting information is input from the input unit 1110 and an instruction of sound wave transmission is given (S101 in FIG. 15). At this time, if there is no instruction for sound wave transmission, the process of S101 is repeated.
[0106]
If there is an instruction to transmit a sound wave, the sound wave transmitter 11 determines whether sound wave information such as the intensity of the sound wave is set (S102). At this time, if the sound wave information is not set, the process of S102 is repeated.
[0107]
And the sound wave transmitter 11 notifies that the intrusion detection by sound wave transmission is performed when there is a resident in the house before the sound wave transmission (S103).
[0108]
FIG. 16 is a flowchart when the sound wave transmission from the sound wave transmitter 11 is stopped. First, the sound wave transmitter 11 determines whether or not an instruction to stop sound wave transmission has been given from the input unit 1110 (S203 in FIG. 16). At this time, if the stop instruction is inside, the sound wave transmitter 11 continues to output sound waves (S202). If there is an instruction to stop sound wave transmission, the sound wave transmitter 11 stops sound wave transmission (S203).
[0109]
FIG. 17 is a process flowchart of the sound wave interpretation device 12 of the intrusion detection device.
[0110]
The sound wave interpretation device 12 determines whether or not there is a change in the state of sound waves (such as the intensity of sound waves) received from the sound wave transmitter 11 (S301 in FIG. 17). At this time, if there is no change in the state of the sound wave, the sound wave interpretation device 12 repeats the process of S301.
[0111]
If there is a change in the state of the sound wave, it is determined whether or not the amount of change in the sound wave is greater than a threshold value (S302). At this time, if the change amount of the sound wave is equal to or smaller than the threshold value, the sound wave interpretation device 12 repeats the process of S301.
[0112]
If the change amount of the sound wave is equal to or greater than the threshold value, the sound wave interpretation device 12 determines whether the resident is in the house (S303). At this time, if the resident is in the house, the sound wave interpretation device 12 notifies the resident of the intrusion and ends the process (S304).
[0113]
When the resident is not in the house, the sound wave interpretation device 12 notifies the resident who is estimated to be in a remote place that the resident has been invaded (S305). At this time, the sound wave interpretation apparatus 12 notifies by the above-mentioned means such as a mobile phone used by a resident. Then, the sound wave interpretation device 12 threatens the intruder by the above-described threatening function 1027 in order to exclude the intruder (S306).
[0114]
After threatening the intruder, the sound wave interpretation device 12 determines whether or not a certain period of time has elapsed since the start of threat, or whether there is a threat stop instruction from a security company or the like (S307). At this time, if none of the above determinations are made, the sound wave interpretation device 12 continues the threat.
[0115]
If any of the above determinations is determined, the sound wave interpretation device 12 stops threatening and ends the process (S308). In S302, it is determined whether or not the amount of change in sound wave intensity exceeds the threshold value. However, in the intrusion detection apparatus, it is determined whether or not the sound wave intensity itself exceeds the threshold value. May be.
[0116]
<Example of processing by this intrusion detection device>
Next, a processing example by the intrusion detection device will be described.
[0117]
FIG. 18 is a diagram illustrating an example of processing by the intrusion detection device. In FIG. 18, the sound wave transmitter 11 </ b> A is installed around the window 20 </ b> A and the sound wave transmitter 11 </ b> B is installed around the window B outside the resident's house 100. Then, sound waves are output from each of the sound wave transmitters 11A and 11B at the following frequency and sound wave intensity. The sound wave transmitter 11A has a frequency of 25 kHz and a sound wave intensity of 100 dB. The sound wave transmitter 11B has a frequency of 30 kHz and a sound wave intensity of 90 dB.
[0118]
The indoor sound wave interpretation device 12 is set as follows. The setting of the sound wave transmitter 11A is a frequency of 25 kHz and a threshold value of 70 dB. The sound wave transmitter 11B is set to a frequency of 30 kHz and a threshold value of 60 dB.
[0119]
After the processing by the intrusion detection device is started, when the window 20A is opened by the intruder 300, the area of the opening 21 is changed so that the sound wave of the sound wave transmitter 11A entering from the window 20A enters a large amount indoors. Become. At this time, the sound intensity from the sound wave transmitter 11A received by the sound wave interpretation device 12 increases.
[0120]
Then, when the intensity of the sound wave received from the sound wave transmitter 11A exceeds the threshold value of 70 dB (for example, increases from 50 db to 75 db), the sound wave interpretation device 12 uses a flashlight to enter the occupant indoors. Is notified that there is a person. At this time, the resident in the remote place communicates by text or voice for notifying the mobile phone of the situation via a network or the like. In this way, according to the intrusion detection device, it is possible to detect the amount of change in the sound wave and notify the resident inside or outside the house that there is an intruder.
[0121]
Next, of the processes performed by the intrusion detection device, a process for permitting entry of a person such as a resident who is permitted to enter the room will be described.
[0122]
FIG. 19 is a diagram illustrating processing for a person who is permitted to enter a room among the processing performed by the intrusion detection device.
[0123]
In FIG. 19, a resident 400 is allowed to have a pendant 500 having a function of a transmitter that transmits an authentication permission sound wave. When the sound wave interpretation device 12 receives an authentication permission sound wave (for example, a sound wave with a sound intensity of 80 db and a frequency of 40 kHz) transmitted from the pendant 500, even if the opening area of the opening 21 has changed. It can be set not to judge that there is an intruder.
[0124]
By such processing, in the intrusion detection device, for example, the opening / closing means 20 such as a front door is opened, and the sound wave from the sound wave transmitter 11 transmitted to the inside through the opening 21 (for example, sound intensity 90 db, frequency 30 kHz) Even when the sound wave intensity becomes strong and the sound intensity exceeds a threshold value, it is possible to detect that the resident has opened and prevent false alarms.
[0125]
Further, if the sound wave interpretation device 12 stores the fact that the resident 400 with the pendant 500 returns at a predetermined time, the lifestyle habits of the resident 400 can be managed. In this case, for example, when the return of the child at home is late, it is possible to notify the mother to that effect.
[0126]
<Effect of the embodiment>
By realizing the intrusion detection device according to the present embodiment, the following effects can be obtained.
[0127]
FIG. 20 is a diagram for explaining the effects related to the installation location of the intrusion detection device. In the intrusion detection device, the installation location of the sound wave transmitter 11 is not limited as long as the sound wave interpretation device 12 in the room can receive the sound wave from the sound wave transmitter 11 attached outside the room. Therefore, do not install the sound wave transmitter 11 in places where intruders can easily watch, such as around windows, but install it in places where intruders are difficult to notice, such as kennels, flower pots at entrances, and attics. Is possible.
[0128]
FIG. 21 is a diagram illustrating the ease of installation of the intrusion detection device. Similarly to the above, in this intrusion detection device, the installation location of the sound wave transmitter 11 is not limited as long as the sound wave interpretation device 12 in the room can receive the sound wave from the sound wave transmitter 11 attached outside the room. For this reason, in this intrusion detection apparatus, it is not necessary to attach the sound wave transmitter 11 directly to the opening / closing means 20 such as a door or a window.
[0129]
Therefore, according to the present intrusion detection device, it can be installed in any form of opening / closing means regardless of the form of the opening / closing means 20 such as a door or a window. Moreover, in this intrusion detection apparatus, since the wiring from the sound wave interpretation apparatus 12 to the sound wave transmitter 11 is unnecessary, the installation can be performed easily.
[0130]
FIG. 22 is a diagram for explaining the effect of identifying the intrusion location in the intrusion detection device. In this intrusion detection device, if the frequency of the sound wave transmitter 11 installed in each opening / closing means 20 is changed for each installation location, the opening opened in the house 100 or the like due to the difference in sound waves received by the sound wave interpretation device 12 The part 21 can be easily and reliably determined. Thereby, the sound wave interpretation apparatus 12 can monitor all the opening parts in a house collectively.
[0131]
23 and 24 are diagrams for explaining an example of an intrusion detection effect by the intrusion detection device. The sound wave received by the sound wave interpretation device 12 of the intrusion detection device increases according to the opening area of the opening 21. That is, in the intrusion detection device, the sound wave intensity increases when the opening 21 is opened widely. For this reason, according to this intrusion detection device, not only when the opening 21 is opened from a completely closed state, but also when it can be estimated that the opening area has been expanded from an already opened state. The change in the opening area can be detected.
[0132]
Further, as shown in FIG. 24, the intrusion detection device can cope with an intrusion that cannot be detected by a conventional method. That is, when the resident is at home, for example, when the window 20 is opened in advance for ventilation (for example, the width of the opening 21 is about 10 centimeters), the intruder 300 tries to intrude. It is possible to detect that the window 20 is opened and the opening 21 is widened to the extent that a person can enter.
[0133]
<Modification>
In the present embodiment, the intrusion detection device of the present invention has mainly been described with respect to an example of intrusion detection into a house, but the present invention is not limited to this and can be widely implemented for other intrusion detection devices. .
[0134]
【The invention's effect】
According to the intrusion detection device of the present invention, intrusion from various opening / closing means in a building such as a window or a door is reliably detected. And allow access by authorized persons An excellent effect of providing the technology so that it can be easily applied to the building can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining an outline of a technique using vibration detection of a window or the like for detecting an intruder into a house or the like.
FIG. 2 is a diagram illustrating an outline of a technique for detecting opening and closing of a window in order to detect an intruder into a house or the like.
FIG. 3 is a diagram for explaining another example of a technique for detecting opening / closing of a window and an outline of a technique for detecting opening / closing of a door (a hinged door);
FIG. 4 is a diagram illustrating an example of problems in various conventional security systems.
FIG. 5 is a diagram illustrating an outline of a technique for detecting an intruder into a house or the like using infrared rays.
FIG. 6 is a diagram illustrating an outline of a technique for detecting an intruder by detecting opening / closing of an opening / closing means.
FIG. 7 is a diagram for explaining the outline of the present invention.
FIG. 8 is a diagram illustrating the principle of the present invention.
FIG. 9 is a diagram showing a configuration of an intrusion detection device according to an embodiment of the present invention.
FIG. 10 is a functional block diagram of the intrusion detection device.
FIG. 11 is a block diagram of hardware of a sound wave transmitter.
FIG. 12 is a hardware block diagram of the sound wave interpretation apparatus.
FIG. 13 is a diagram showing the external appearance of an embodiment of a sound wave transmitter.
FIG. 14 is a diagram showing an external appearance of an embodiment of a sound wave interpretation device.
FIG. 15 is a flowchart when starting transmission of sound waves from a sound wave transmitter;
FIG. 16 is a flowchart when the sound wave transmission from the sound wave transmitter is stopped.
FIG. 17 is a process flowchart of the sound wave interpretation apparatus.
FIG. 18 is a diagram illustrating an example of processing performed by the intrusion detection device.
FIG. 19 is a diagram illustrating a process for a person who is permitted to enter a room among the processes performed by the intrusion detection apparatus.
FIG. 20 is a diagram illustrating an effect related to the installation location of the intrusion detection device.
FIG. 21 is a diagram illustrating the ease of installation of the intrusion detection device.
FIG. 22 is a diagram for explaining an effect that an intrusion point can be specified in the intrusion detection device.
FIG. 23 is a diagram illustrating an example of an intrusion detection effect by the intrusion detection device.
FIG. 24 is a diagram illustrating an example of an intrusion detection effect by the intrusion detection device.
[Explanation of symbols]
2 sound waves
10 Intrusion detection device
11 Sonic transmitter
12 Sound wave interpretation device
20 Opening and closing means
21 opening
100 houses
300 Intruder
400 residents
500 pendants
600 small animals
1010 Sound wave adjustment function
1011 Sound wave transmission function
1021 Sound wave reception function
1022 Sound wave analysis function
1023 Opening threshold value setting function
1024 Opening state determination function
1025 Error notification function
1026 Communication function
1027 Threatening function
1110 Input section
1111 Memory unit
1112 Information output unit
1113 Sound wave adjustment unit
1114 Oscillator
1115 Amplifier
1116 Sound wave output unit
1117 Management Department
1210 Sound wave receiver
1210a Sound wave input unit
1210b Amplifier
1210c Sound filter unit
1210d Bass removal unit
1211 Communication unit
1212 Output unit
1213 Input unit
1214 Calculation unit
1215 Memory unit
1216 Information DB Management Department
1217 Program / data storage unit

Claims (8)

Transmitting means for transmitting sound waves toward the opening of the opening / closing means provided in the building;
Receiving means for receiving the sound wave;
An opening state calculating means for calculating a change in opening area of the opening based on the received sound wave;
An intrusion detection means for detecting an intrusion from the opening and closing means based on the opening area change;
A notification means for notifying the intrusion when an intrusion from the opening / closing means is detected ,
The receiving means has a function of detecting the frequency of the received sound wave,
An intrusion detection apparatus in which the notification means does not notify intrusion when the receiving means receives an authentication permission sound wave having a predetermined frequency . The opening state calculating means includes
Means for detecting sound wave information indicating the intensity of the received sound wave;
The intrusion detection device according to claim 1, further comprising: means for calculating a change amount of the sound wave information and calculating the opening area change based on the change amount. Means for storing in advance threshold conditions for the amount of change in the sound wave information;
The intrusion detection means is
The intrusion detection device according to claim 1, wherein the intrusion is detected when a change amount of the sound wave information satisfies the threshold condition. The transmission means is provided outside the building;
Said receiving means are provided inside the building, the intrusion detection device according to any one of claims 1 to 3. Wherein the sound waves, using a non-audible sound, intrusion detection apparatus as claimed in any of claims 1 to 4. Transmitting sound waves toward the opening of the opening / closing means provided in the building;
Receiving the sound wave;
Calculating an opening area change of the opening based on the received sound wave;
Detecting an intrusion from the opening and closing means based on the opening area change;
A notification step of notifying the intrusion when an intrusion from the opening / closing means is detected ;
In the step of receiving the sound wave, the frequency of the received sound wave is detected,
An intrusion detection program that does not notify intrusion when the received sound wave includes an authentication-permitted sound wave having a predetermined frequency in the notification step . Detecting sound wave information indicating the intensity of the received sound wave;
The intrusion detection program according to claim 6 , further comprising: calculating a change amount of the sound wave information and calculating the opening area change based on the change amount. Variation of the sound wave information, if that satisfies the threshold condition corresponding to the change in the sound wave information stored in advance, further causes the computer to execute the steps of detecting the intrusion of claim 6 or 7 Intrusion detection program.

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