JP2006235996A - Warning system and warning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To precisely detect state changes related to crimes or accidents, while properly protecting user privacy. <P>SOLUTION: A plurality of microphones 2 are provided indoors to collect sound. A warning device 1 stores reference sound data (sound indicating normal or abnormal states) as criteria in advance and compares the collected sound data with the reference sound data. When a determination result indicates an abnormality, the warning device 1 informs an external communication device 4 that the abnormality has occurred. In this case, the installation location of each microphone 4 is associated with the destination of the information in such a manner that information about an abnormality at a certain location is provided only to the particular communication device 4 while information about an abnormality at another location is provided to all the communication devices 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technique for preparing for the occurrence of a crime or an accident in a residence or an office.

  In order to prevent crimes caused by thieves or detect accidents such as fires in residences and offices, there is a technique for detecting changes in the location and notifying residents and managers. For example, Patent Literature 1 discloses a technique for notifying an external device such as a mobile phone when a sound exceeding a predetermined reference volume is emitted, and Patent Literature 2 discloses human feeling or A technique is disclosed in which, when an impact is detected, an image taken by a surveillance camera is transmitted to a mobile phone by an electronic mail with an image (image mail). However, using these techniques has the following disadvantages.

JP 2004-86535 A JP 2004-86393 A

  The crime prevention device described in Patent Document 1 notifies an external device if a sound exceeding a predetermined reference volume is emitted, but since this crime prevention device cannot identify the type of sound, it is not related to crimes and accidents. Even if it was a sound, it sometimes notified. For example, according to this crime prevention device, even if an ambulance passes through the vicinity while sounding a siren or a non-malicious person sounds a doorbell, an external device is notified. However, if the volume level of the reference volume was raised, this time, it would fail to detect the sound indicating the sign of crime or accident, resulting in failure to achieve the intended purpose.

In the system described in Patent Document 2, an image mail in the target room is transmitted to the mobile phone. For example, if the target room is a private residence, the resident and the recipient of the image mail are It may not match. In such a case, if the image mail is transmitted due to a factor unrelated to crimes and accidents such as the above-described sirens and doorbells, the resident's privacy may be unjustly violated.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a technology for accurately detecting a state change related to a crime or an accident while appropriately protecting the privacy of the user. is there.

In order to achieve the above-mentioned object, the present invention includes a plurality of sound collecting devices that collect sound at a plurality of different locations, a communication device, and a control device capable of exchanging data with the sound collecting device and the communication device. The plurality of sound collecting devices includes a transmission unit that transmits sound collected at each location as sound data, and the control device is transmitted from the plurality of sound collecting devices. Receiving means for receiving sound data; sound data storing means for storing normal sound data indicating a preset sound waveform; sound data received by the receiving means; and normal data stored in the sound data storing means Determining means for determining the degree of coincidence with the sound data, and when the sound determining means determines that the sound data does not match the normal sound data at a certain level or higher, And output means for outputting to the communication device information indicating the location where the sound data is collected, and when the communication device receives the information output by the control device, the information indicates Provided is a warning system provided with notification means for notifying that an abnormality has occurred in a place.
According to this warning system, the warning device stores sounds that are unrelated to crimes and accidents as normal sound data and collects sound data that does not match the normal sound data at a certain level or higher at a certain location. Then, it is determined that there is a sign of abnormality in the place, and information indicating the place where the sound data is collected is output to the communication device. At this time, the warning device notifies only the location showing the sign of abnormality and does not notify the image or sound of that location, so the communication device only displays whether or not an abnormality has occurred at that location, Does not violate the privacy of the person.

The present invention is a warning system comprising a plurality of sound collecting devices that collect sound at a plurality of different locations, a communication device, and a control device capable of exchanging data with the sound collecting device and the communication device. The plurality of sound collecting devices include transmission means for transmitting the sound collected at each location as sound data, and the control device receives the sound data transmitted from the plurality of sound collecting devices. Means, sound data storage means for storing abnormal sound data indicating a preset sound waveform, and sound data received by the receiving means and the abnormal sound data stored in the sound data storage means A determination means for determining the degree, and when the determination means determines that the sound data and the abnormal sound data are equal to or higher than a certain level, the determination result and the sound data Output means for outputting information indicating the sounded location to the communication device, and when the communication device receives the information output by the control device, an abnormality occurs in the location indicated by the information. It is specified also as a warning system provided with an informing means for informing that.
According to this warning system, the warning device stores sounds indicating signs of crime and accidents as abnormal sound data and collects sound data that matches the abnormal sound data at a certain level or higher at a certain location. Then, it is determined that there is a sign of abnormality in the place, and information indicating the place where the sound data is collected is output to the communication device.

  Further, the present invention provides a receiving means for receiving sound data collected at a plurality of different locations, a sound data storing means for storing normal sound data indicating a preset sound waveform, and a receiving means for receiving the sound data. Determining means for determining the degree of coincidence between the recorded sound data and the normal sound data stored in the sound data storage means, and the sound data and the normal sound data are matched to a certain level or more by the determining means. When it is determined not to be performed, it is also specified as a warning device including output means for outputting information indicating the determination result and the location where the sound data is collected.

In this warning device, as a more preferred aspect, the sound data storage means stores the normal sound data corresponding to each of the plurality of different places, and the determination means is the sound data received by the receiving means. And the degree of coincidence with the normal sound data corresponding to the place where the sound data is collected.
In this way, normal sound data can be set in accordance with the location where the sound data is collected, so that it is possible to more accurately detect state changes related to crimes and accidents.

Alternatively, as a more preferable aspect, the warning device includes related storage means for storing the location where the sound data is collected and an output destination in association with each other, and the output means is configured to output the sound data by the determination means. And the normal sound data when it is determined that the sound data does not match a certain level or more, the location relative to the output destination stored in association with the location where the sound data is collected by the related storage means The information indicating is output.
In this case, more preferably, the warning device matches the sound data and the normal sound data to a certain level or more by the storage unit that stores the sound data received by the receiving unit and the determination unit. And a transmission means for transmitting the sound data stored in the accumulation storage means to the output destination to which the information is output when it is determined not to do so.
In this way, it is possible to set an output destination corresponding to a place where sound data is collected, and to transmit sound data indicating an abnormality sign to the output destination. As a result, it is possible to check the collected sound and the status of this place while appropriately protecting the privacy of the user.

  Further, the present invention provides a receiving means for receiving sound data collected at a plurality of different locations, a sound data storage means for storing abnormal sound data indicating a preset sound waveform, and receiving by the receiving means. Determining means for determining the degree of coincidence between the recorded sound data and the abnormal sound data stored in the sound data storage means, and the sound data and the abnormal sound data match a certain level or more by the determining means Then, when it is determined, it is also specified as a warning device including an output means for outputting information indicating the determination result and the location where the sound data is collected.

In this warning device, as a more preferable aspect, the sound data storage means stores the abnormal sound data corresponding to each of the plurality of different places, and the determination means includes the sound data received by the receiving means. And the degree of coincidence with the abnormal sound data corresponding to the place where the sound data is collected.
In this way, abnormal sound data can be set according to the location where the sound data is collected, so that it is possible to more accurately detect state changes related to crimes and accidents.

Alternatively, as a more preferable aspect, the warning device includes a related storage unit that stores the location where the sound data is collected and an output destination in association with each other, and the output unit performs the sound by the determination unit. When it is determined that the data and the abnormal sound data are equal to or higher than a certain level, the location with respect to the output destination stored in association with the location where the sound data is collected by the related storage means The information indicating is output.
In this case, more preferably, the warning device matches the sound data and the abnormal sound data to a certain level or more by the storage means for storing the sound data received by the receiving means and the judging means. Then, when it is determined, it further includes transmission means for transmitting the sound data stored in the accumulation storage means to the output destination to which the information is output.
In this way, it is possible to set an output destination corresponding to a place where sound data is collected, and to transmit sound data indicating an abnormality sign to the output destination. As a result, it is possible to check the collected sound and the status of this place while appropriately protecting the privacy of the user.

  In addition, the present invention provides a reception function for receiving sound data collected at a plurality of different locations in a computer, and the coincidence between the sound data received by the reception function and normal sound data stored in advance. When the determination function for determining the degree and the determination function determine that the sound data and the normal sound data do not match a certain level or more, the determination result and the location where the sound data is collected Is also specified as a program for realizing an output function that outputs information indicating that to an output destination stored in association with the location.

  Alternatively, the computer receives a reception function for receiving sound data collected at a plurality of different locations, and determines a degree of coincidence between the sound data received by the reception function and abnormal sound data stored in advance. When the determination function and the determination function determine that the sound data and the abnormal sound data match a certain level or higher, information indicating the determination result and the location where the sound data is collected It can also be specified as a program for realizing an output function for outputting to an output destination stored in association with the location.

  As described above, according to the present invention, it is possible to accurately detect a state change related to a crime or an accident while appropriately protecting the privacy of the user.

[A] Configuration FIG. 1 is a diagram showing an overall configuration of a warning system 100 according to an embodiment of the present invention. The alert system 100 includes an alert device 1, a plurality of microphones 2, a network 3, and a plurality of communication devices 4. The numbers of microphones 2 and communication devices 4 are not particularly limited.

  The security device 1 is, for example, a personal computer, receives sound data from a plurality of microphones 2, and provides various information to the plurality of communication devices 4 based on the contents. The microphone 2 is, for example, an omnidirectional microphone. The microphone 2 is a sound collecting device that collects sound around a place where the microphone 2 is installed, converts the sound into sound data that is an electric signal, and transmits the sound data to the warning device 1. The mode of data transmission / reception between the warning device 1 and the microphone 2 may be wired or wireless, but it is preferable to use a short-range wireless communication technology such as Bluetooth (registered trademark) or HomeRF. The network 3 includes the Internet and a mobile communication network, and enables data communication between the warning device 1 and the communication device 4. The communication device 4 is a portable computer such as a mobile phone having a data communication function, a PDA (Personal Digital Assistant), or a computer that is fixedly installed. The communication device 4 performs data communication with the warning device 1 via the network 3. Is configured to be possible. In addition, the communication device 4 has functions such as a display unit, an operation unit, or an audio output unit (speaker) that are usually included in a computer, and displays data transmitted from the warning device 1, or displays the data to the warning device 1. It is configured to be able to give instructions. In other words, the communication device 4 stores a program that realizes a function of changing the screen display according to the data transmitted from the warning device 1 or instructing the warning device 1.

Next, the function and configuration of the warning device 1 described above will be described in more detail.
FIG. 2 is a block diagram illustrating a hardware configuration of the warning device 1. The warning device 1 includes a control unit 11, a storage unit 12, a display unit 13, an operation unit 14, a voice input unit 15, and a communication unit 16. The control unit 11 includes an arithmetic device such as a CPU (Central Processing Unit) and various memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 12 is a large-capacity non-volatile storage device such as an HDD (Hard Disk Drive), for example. In addition to the program PRG1 (or PRG2) in which a procedure for realizing a function described later by the control unit 11 is described, The reference sound data library sLIB containing the reference sound data and the sound data table sTBL describing the association between the reference sound data and each microphone 2 are stored. Further, the storage unit 12 has a storage capacity capable of storing sound data received from the plurality of microphones 2 for a predetermined time. Note that the contents of the reference sound data library sLIB and the sound data table sTBL differ depending on the situation to which this system is applied. Therefore, specific contents thereof will be individually described in each of the embodiments described later.

  The display unit 13 is a display device such as a liquid crystal display, and displays an image based on data supplied by the control unit 11. The operation unit 14 is an input device such as a keyboard or a mouse, and supplies a signal corresponding to the operation content of the operator to the control unit 11. The audio input unit 15 is, for example, a Bluetooth (registered trademark) reception adapter or a line input jack, and receives sound data from the microphone 2. The voice input unit 15 is configured to recognize each of the plurality of microphones 2, and the control unit 11 can specify the location where the sound data is collected. The communication unit 16 is an interface device for the security device 1 to exchange data with the communication device 4 via the network 3.

[B] Operation With the above-described configuration, the warning device 1 receives sound data from the plurality of microphones 2 and compares each of the sound data with reference sound data stored in the reference sound data library sLIB. The alerting device 1 then outputs information indicating the state (normal or abnormal) of the place where the sound data is collected based on the comparison result to the communication device 4. Further, when receiving a request to reproduce sound data from the communication device 4, the warning device 1 transmits the sound data stored and stored in the storage unit 12 to the communication device 4 to reproduce the sound data. .
The outline of the operation of the warning device 1 in the warning system 100 of the present embodiment is as described above. From here, the case where this warning system 100 is applied to a residence and the case where it applies to an office are each shown, and the specific process in each case is demonstrated in detail.

[B-1] Example 1
Here, as a first embodiment of the present invention, a case in which the alert system 100 is applied to a home dwelling is shown as an example. In the present embodiment, when the alert device 1 receives sound data different from the reference sound data, the alert device 1 determines that this is abnormal and notifies the communication device 4 of it.
FIG. 3 is a diagram showing a system configuration of the present embodiment. For ease of explanation, here the interior of the residence is the “veranda”, “room A”, “kitchen”, “living room”, “toilet”, “bath”, “corridor”, “entrance”, “room” B ”is divided into nine locations. Here, it is assumed that the room A has a clock that emits a time signal sound, the living room has a telephone that rings when a call is received, and the kitchen has a refrigerator. Further, it is assumed that the room A is a room for a user A described later, and the room B is a room for a user B described later.

  One microphone 2A to 2I is installed in each of these nine places. It is desirable that the microphones 2A to 2I be able to collect sound with high sensitivity at the respective locations and be installed at positions that are not easily noticeable. In this embodiment, there are two communication devices 4, which are a mobile phone (communication device 4 </ b> A) possessed by user A and a personal computer (communication device 4 </ b> B) possessed by user B, respectively.

Next, the reference sound data library sLIB and the sound data table sTBL in the present embodiment will be described.
FIG. 4 schematically shows the reference sound data library sLIB in the present embodiment. The reference sound library sLIB is a set (library) of data in which a plurality of “reference sound data” used as a reference for sound data determination by the control unit 11 is stored. The reference sound data is, for example, sound data indicating a sound waveform of a sound that has a volume (sound pressure) level that is equal to or higher than a predetermined threshold and that can be normally generated in the environment where the microphone 2 is installed. As shown in FIG. 4, in this embodiment, sound data such as “ambulance siren sound”, “clock time signal sound”, “phone bell”, “refrigerator motor sound”, etc. are used as reference sound data. Pre-registered. The sound data recorded by the microphone 2 may be used, or may be created by the operator himself or acquired from the outside. Of course, the reference sound data library sLIB can be freely changed by the operator of the warning device 1.
Hereinafter, such reference sound data is referred to as “normal sound data”.

  FIG. 5 shows a sound data table sTBL in this embodiment. The sound data table sTBL associates the sound data from the microphones 2A to 2I with the normal sound data and the sound data from the microphones 2A to 2I as any normal sound data. Specifies whether to compare. That is, the sound data transmitted from each of the microphones 2A to 2I is not compared with all normal sound data but only with normal sound data defined by the sound data table sTBL.

  The sound data table sTBL of this embodiment also describes the association between the microphones 2A to 2I and the user communication device 4. That is, when the warning device 1 of the present embodiment makes a determination that there is an abnormality based on the sound data from the microphone 2 at a certain location, only the communication device 4 of the determined user has an abnormality at this location. To be notified.

  The sound data table sTBL as described above will be described with reference to FIG. 5. For example, the first row of the sound data table sTBL indicates that the sound data from the “microphone 2A” in the “veranda” is “ambulance siren sound”. It is compared, and when it is determined that the sound is different from this, it is shown that notification is made to “communication device 4A” and “communication device 4b”. The second row of the sound data table sTBL is obtained when the sound data from the “microphone 2B” in the “room A” is compared with the “time signal of the clock” and is determined to be a different sound. Indicates that the “communication device 4A” is notified.

  The process performed in the alert system 100 of a present Example based on the structure shown above is demonstrated. This processing is realized by the control unit 11 of the warning device 1 executing the program PRG1 stored in the storage unit 12, and is executed when, for example, the user (resident) is away from the residence. The

  FIG. 6 is a diagram showing a screen displayed on the display units of the communication devices 4A and 4B when the control unit 11 executes this process. As shown in the figure, this screen shows the state (normal or abnormal) of each location where the microphone 2 collects sound. These states are “normal” as default values. That is, when there is no notification from the warning device 1, a button indicating normality is displayed.

  The display contents in the communication devices 4A and 4B are different from each other. This is because the control unit 11 determines the display content based on the content of the sound data table sTBL. The control unit 11 notifies only the state of the microphone 2 associated with the communication device 4 of the user. For this reason, the state of the room B is not displayed on the communication device 4A of the user A, and the state of the room A is not displayed on the communication device 4B of the user B.

  FIG. 7 is a flowchart showing processing performed by the control unit 11 of the warning device 1. This process is performed in the same manner for all sound data received by the warning device 1. If it demonstrates along the figure, the control part 11 will receive the sound data from the microphone 2 first (step Sa1), and will memorize | store this in the memory | storage part 12 (step Sa2). Then, the control unit 11 determines whether or not the received sound data has a volume level equal to or higher than a predetermined threshold (step Sa3). If the received sound data is less than the threshold value (step Sa3; NO), the control unit 11 repeats the sound data receiving operation (step Sa1).

On the other hand, if the received sound data is equal to or greater than the threshold value (step Sa3; YES), the control unit 11 refers to the sound data table sTBL to identify normal sound data associated with the microphone 2 that transmitted the sound data. (Step Sa4), it is determined whether or not the normal sound data matches the received sound data (Step Sa5). In the comparison of the sound data and the normal sound data, these sound waveforms do not need to be completely coincident with each other as long as they are within an acceptable level. For convenience of explanation, in the following, it is assumed that the sound data and the normal sound data are in the same state.
If the normal sound data matches the received sound data (step Sa5; YES), the control unit 11 determines that the sound data is a kind of sound that can normally be generated. Therefore, the control unit 11 regards that no abnormality has occurred at the location where the sound data is transmitted, and repeats the sound data receiving operation again (step Sa1).

  On the other hand, if the normal sound data and the received sound data do not match (step Sa5; NO), the control unit 11 determines that an abnormality has occurred at the location where the sound data is transmitted, and the abnormality is detected. The process for notification is started. Specifically, the control unit 11 refers again to the sound data table sTBL, and specifies the communication device 4 that should be notified of this abnormality (step Sa6). And the control part 11 notifies that the abnormality generate | occur | produced with respect to the specified communication apparatus 4 (step Sa7). At this time, the control unit 11 notifies the communication device 4 so that the place where the abnormality has occurred can be recognized. Specifically, the control unit 11 includes information (data) indicating the occurrence of an abnormality, for example, “A” for “veranda”, “B” for “room A”, “C” for “kitchen”, etc. Identification information for specifying the place where the abnormality has occurred (or the microphone 2 that collected the sound data) is transmitted to the communication device 4.

  When the above processing is performed, the warning device 1 notifies the communication device 4 when any abnormal sound is detected, and performs control to change the display content of the display unit. Moreover, the communication apparatus 4 changes the display content of a display part based on this notification. Next, the display contents of the communication device 4 when an abnormality is notified will be described with specific sound data reception locations.

  For example, it is assumed that the microphone 2A on the veranda has collected some sound data. In this case, if the sound indicated by the sound data does not match the “ambulance siren sound” stored in the sound data table sTBL, the control unit 11 of the warning device 1 determines that an abnormality has occurred in the veranda. . As a result, a screen as shown in FIG. 8 is displayed on the communication devices 4A and 4B. When this screen is compared with the screen of FIG. 6, it can be seen that the button indicating the state of the veranda has changed from “normal” to “abnormal” and the display mode is different from the others. By doing in this way, the warning device 1 can notify that there is a sign of abnormality on the veranda, and can alert the user.

  Further, for example, when the microphone 2B in the room A collects some sound data and the sound indicated by the sound data is a sound that does not match the “time signal sound of the clock”, only the screen display of the communication device 4A is displayed. As shown in FIG. This is because the microphone 2B and the communication device 4B are not associated with each other in the sound data table sTBL in FIG.

  Further, in these cases, when the user selects a button whose display mode has changed, the alert device 1 transmits to the communication device 4 the sound data at the location indicated by the selected button. By doing in this way, the actual sound at the place where there is a sign of abnormality is sounded from the speaker of the communication device 4, and the user can check the collected sound and the situation of this place.

  As described above, according to the warning device 1 of the present operation example, it is possible to detect a state change indicating a crime or an accident sign caused by a thief intrusion or the like by sound. At this time, if the detected sound is of a level that can normally be generated, the warning device 1 determines that this is a normal sound and does not notify the communication device 4. . For this reason, it is possible to exclude state changes unrelated to crimes and accidents, and it is possible to perform accurate detection. Furthermore, since normal sound data different for each location can be associated as the “normal sound” described above, it is possible to detect abnormal sound more accurately. In addition, since the location where the sound is collected can be associated with the communication device 4 that notifies the user, it is possible to notify only a user who is related to the location or a user who needs to perform the notification, thereby improving the privacy of the user. It can also be adequately protected.

[B-2] Example 2
Subsequently, a second embodiment of the present invention will be described. In this embodiment, a case where the alert system 100 is applied to an office such as a company is shown as an example. Unlike the above-described first embodiment, the present embodiment is a system that, when the alert device 1 receives sound data that matches the reference sound data, determines that this is abnormal and notifies the communication device 4 of this. In the present embodiment, in order to easily understand the description, the description of the same matters as in the first embodiment will be omitted as appropriate.

  FIG. 10 is a diagram showing a system configuration of the present embodiment. In this office, a warning device 1 (referred to as “computer a”), computers b to f, windows g and h, door i, safe j and the like are installed as shown in the figure. In addition, one microphone 2a to 2j is installed in the vicinity of the place where these are installed. These microphones 2a to 2j are connected to the warning device 1 by wire or wirelessly. In addition, regarding the microphones 2b to 2f, the computers b to f may be provided. The warning device 1 executes the program PRG2 and notifies the communication device 4 when an abnormality is detected. The communication device 4 is, for example, a computer installed in a security company, and is operated by a user a who is an employee of the security company.

Next, the reference sound data library sLIB and the sound data table sTBL in the present embodiment will be described.
FIG. 11 schematically shows the reference sound data library sLIB in the present embodiment. In the reference sound data library sLIB of the present embodiment, sound data indicating signs of abnormality in the locations where the microphones 2a to 2j are installed is stored as “reference sound data”. For example, in this embodiment, sound data such as “computer startup sound”, “computer beep sound”, “sound of window glass”, “sound of opening safe”, “human footsteps”, etc. are used as a reference. It is registered in advance as sound data. Hereinafter, such reference sound data is referred to as “abnormal sound data”.

  FIG. 12 shows a sound data table sTBL in this embodiment. The sound data table sTBL of the present embodiment associates each location where sound data from the microphones 2a to 2j are collected with abnormal sound data. For example, in the first row of the sound data table sTBL, “sound breaking glass” is compared with sound data from “microphone 2g” and “microphone 2h” at the locations of “window g” and “window h”. When it is determined that the sound data match, information is output to the communication device 4. Further, the second row of the sound data table sTBL shows that “human footsteps” are compared with sound data from the microphones 2 at all locations, and when it is determined that these sound data match, the communication device 4 Indicates that information is output.

  Unlike the first embodiment described above, this embodiment does not need to associate the microphone 2 with the communication device 4 because the output target of the information indicating abnormality is the single communication device 4. Further, in the comparison of the sound data and the abnormal sound data, they do not need to be completely coincident with each other, and may be given an appropriate width that can be tolerated.

  The process performed in the alert system 100 of a present Example based on the structure shown above is demonstrated. This process is a process realized by the control unit 11 of the warning device 1 executing the program PRG2 stored in the storage unit 12, and is executed when, for example, the office is out of work hours or the like.

  FIG. 13 is a diagram showing a screen displayed on the display unit of the communication device 4 when the control unit 11 executes this process. As shown in the figure, this screen shows the state (normal or abnormal) of each location where the microphone 2 collects sound. These states are “normal” as default values. That is, when there is no notification from the warning device 1, a button indicating normality is displayed.

  FIG. 14 is a flowchart illustrating processing performed by the control unit 11 of the warning device 1. Although the flowchart of the present embodiment has the same parts as the flowchart (FIG. 7) of the first embodiment described above, description of these parts will be omitted as appropriate. The difference between this flowchart and the flowchart of FIG. 7 is that the comparison target of sound data is not normal sound data but abnormal sound data. Therefore, in the present embodiment, the control unit 11 refers to the sound data table sTBL to identify abnormal sound data associated with the microphone 2 that transmitted the sound data (step Sb4), and receives the abnormal sound data and the reception. It is determined whether or not the sound data matches (step Sb5). If the abnormal sound data and the received sound data do not match (step Sb5; NO), the control unit 11 determines that the sound data is a kind of sound that can normally be generated, and receives the sound data again. Is repeated (step Sb1).

  On the other hand, if the abnormal sound data matches the received sound data (step Sb5; YES), the control unit 11 determines that an abnormality has occurred at the location where the sound data is transmitted, and notifies the abnormality. Start processing. Specifically, the control unit 11 outputs data including the place where the abnormal sound is received and the fact that the abnormality has occurred at the place to the communication device 4 (step Sb6).

  When the above processing is performed, the warning device 1 notifies the communication device 4 when any abnormal sound is detected, and performs control to change the display content of the display unit. Moreover, the communication apparatus 4 changes the display content of a display part based on this notification. Next, the display contents of the communication device 4 when an abnormality is notified will be described with specific sound data reception locations.

  For example, suppose that the microphone 2b near the computer b collects some sound data. In this case, if the sound indicated by the sound data is a sound that matches the “computer start-up sound” stored in the sound data table sTBL, the control unit 11 of the warning device 1 is a computer in the vicinity of the computer b. It is determined that was activated. Here, since it is unnatural to make a computer startup sound in an unattended office, the control unit 11 determines that an abnormality such as an intruder trying to operate the computer has occurred at this location. is there. As a result, a screen as shown in FIG. 15 is displayed on the communication device 4. When this screen is compared with the screen of FIG. 13, it can be seen that the button indicating the state of the computer b changes from “normal” to “abnormal”, and the display mode is different from the others. By doing in this way, the warning device 1 can notify that there is an abnormality sign in the computer b, and can call a user's attention.

Further, for example, when the microphone 2i near the door i collects some sound data, and the sound indicated by the sound data is a sound that coincides with the “sound for opening the door”, the communication device 4 is shown in FIG. A screen like 16 (a) is displayed. Furthermore, when sound data matching “human footsteps” is sequentially collected by the microphone 2h and the microphone 2j, the screen displayed on the display unit of the communication device 4 changes as shown in FIG. In this case, when the user selects a button whose display mode has changed, the warning device 1 displays a screen as shown in FIG. 17 on the display unit and notifies the user of the locus of the abnormal sound. Referring to this screen, the user can know that the intruder has opened door i and entered the office and is approaching safe j while making a footstep. At this time, as in the above-described first embodiment, an actual sound at a place where an abnormality is detected may be generated in the communication device 4.
By doing in this way, the user can know the temporal change of the sound data indicating a sign of abnormality, and can more accurately determine whether or not an abnormality has occurred.

[C] Modifications The present invention is not limited to the embodiments described in the above-described two embodiments, and various modifications can be made in its application. An example is shown below.
In the first embodiment described above, one microphone 2 is installed in each place such as a veranda or a living room, but the number of microphones 2 may be further increased. In this way, it is possible to more specifically identify the location where the abnormal sound has occurred. If each microphone 2 is a microphone array composed of a plurality of microphones, the position of the sound source can be specified more accurately, and noise can be removed from the collected sound data. Further, when such a configuration is applied to the above-described second embodiment, it is possible to know the movement locus of the abnormal sound more accurately.

  In the first embodiment, the case where the user is away from the house has been described. However, the system of the present embodiment can also be used for monitoring children and pets. In such a case, for example, “child's voice” or “pet's cry” may be registered as reference sound data. In this way, it is possible to confirm where children and pets are making noises. Therefore, it is possible to confirm whether or not the child is doing a dangerous act such as breaking tableware, or whether or not the television is watched for a long time.

  Further, in the above-described first embodiment, it has been described that an actual sound in a place where there is a sign of abnormality is generated from the speaker of the communication device 4, and the user can listen to this sound. The user may be requested to input a password before transmitting sound data. In this way, only a specific user who knows the password can listen to the sound data, so that the resident's privacy can be more appropriately protected.

  Further, in the above-described embodiment, it has been described that sound data having a volume level equal to or higher than a predetermined threshold value is compared with the reference sound data. However, this threshold value differs depending on the location where the sound data is collected. May be. For example, since there are generally more noises outdoors than indoors, a larger volume level threshold is set for the “veranda” microphone 2 and a lower volume level is set for the “living room” microphone 2. It is recommended to set a threshold value. In this way, the indoor microphone 2 can detect an increase in noise even when the thief opens the window glass with a circle cutter or the like without making much noise. It is possible to detect abnormal signs with higher accuracy.

  In the above-described embodiment, the warning device 1 is described as being inside a residence or an office. However, the embodiment is not limited to such a mode, and the warning device may be remote via a network. In such a case, as a matter of course, each microphone has a network communication function, and the collected sound data is transmitted to the warning device via the network.

  It is also effective to add various functions to the microphone 2 of the above-described embodiment. For example, a light that emits light each time an abnormal sound is detected, a siren that issues an alarm in response to an instruction from the user, or a camera that captures a still image or a moving image may be attached. Furthermore, a speaker that outputs the user's voice input from the communication device 4 may be provided. In this way, the effect of repelling a thief is further enhanced, and crime can be prevented.

It is the figure which showed the whole structure of the alert system which concerns on one Embodiment of this invention. It is the block diagram which showed the hardware constitutions of the warning device which concerns on the same embodiment. It is the figure which showed the system configuration | structure of the 1st Example of this invention. It is the figure which showed typically the reference | standard sound data library in the Example. It is the figure which showed the sound data table in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the flowchart which showed the process which the control part of a warning device performs in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the figure which showed the system configuration | structure of the 2nd Example of this invention. It is the figure which showed typically the reference | standard sound data library in the Example. It is the figure which showed the sound data table in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the flowchart which showed the process which the control part of a warning device performs in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example. It is the figure which showed the screen displayed on the display part of a communication apparatus in the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Warning system, 1 ... Warning device, 11 ... Control part, 12 ... Memory | storage part, 13 ... Display part, 14 ... Operation part, 15 ... Voice input part, 16 ... Communication part, 2 ... Microphone, 3 ... Network, 4 …Communication device.

Claims (4)

A warning system comprising a plurality of sound collecting devices for collecting sound at a plurality of different places, a communication device, and a control device capable of transferring data to and from the sound collecting device and the communication device,
The plurality of sound collectors are:
A transmission means for transmitting the sound collected at each location as sound data;
The controller is
Receiving means for receiving sound data transmitted from the plurality of sound collecting devices;
Sound data storage means for storing normal sound data indicating a preset sound waveform;
Determining means for determining the degree of coincidence between the sound data received by the receiving means and the normal sound data stored in the sound data storage means;
When it is determined by the determination means that the sound data and the normal sound data do not coincide with a certain level or more, information indicating the determination result and the location where the sound data is collected is transmitted to the communication device. Output means for outputting to
The communication device
When receiving the information output by the control device, a warning system comprising notification means for notifying that an abnormality has occurred at a location indicated by the information. A warning system comprising a plurality of sound collecting devices that collect sound at a plurality of different places, a communication device, and the sound collecting device and a control device capable of transferring data to and from the communication device,
The plurality of sound collectors are:
A transmission means for transmitting the sound collected at each location as sound data;
The controller is
Receiving means for receiving sound data transmitted from the plurality of sound collecting devices;
Sound data storage means for storing abnormal sound data indicating a preset sound waveform;
Determining means for determining the degree of coincidence between the sound data received by the receiving means and the abnormal sound data stored in the sound data storage means;
When it is determined by the determination means that the sound data and the abnormal sound data match a certain level or more, information indicating the determination result and the location where the sound data is collected is sent to the communication device. Output means for outputting,
The communication device
When receiving the information output by the control device, a warning system comprising notification means for notifying that an abnormality has occurred at a location indicated by the information. Receiving means for receiving sound data collected at a plurality of different locations, and
Sound data storage means for storing normal sound data indicating a preset sound waveform;
Determining means for determining the degree of coincidence between the sound data received by the receiving means and the normal sound data stored in the sound data storage means;
When the determination means determines that the sound data does not match the normal sound data at a certain level or higher, the output means outputs information indicating the determination result and the location where the sound data is collected. And a warning device. Receiving means for receiving sound data collected at a plurality of different locations, and
Sound data storage means for storing abnormal sound data indicating a preset sound waveform;
Determining means for determining the degree of coincidence between the sound data received by the receiving means and the abnormal sound data stored in the sound data storage means;
An output unit that outputs information indicating a result of the determination and the location where the sound data is collected when the determination unit determines that the sound data matches a certain level or more with the abnormal sound data; A warning device comprising:

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