JP2008204219A - Crime prevention system, suspicious person detection device using the same and crime prevention server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect a suspicious person to monitor his or her behavior, and to notify a user of the circumstances for quick measures. <P>SOLUTION: A suspicious person detection device 10 is provided with a detecting function of a suspicious person, and when the suspicious person is detected, the detection information is transmitted through a network 2 to a crime prevention server 3. The crime prevention server 3 confirms that the detected person is actually a suspicious person on the basis of the detection information of the suspicious person detection device 10, and confirms whether or not the suspicious person has a history of a criminal by collating it with the data of a criminal database 6, and notifies a user and a security company 7 (or a police), and selects a nearest street broadcasting equipment 5, and issues warning information by street broadcasting through a regional broadcasting device 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a crime prevention system for detecting a suspicious person from a behavior by detecting a living body based on a minute displacement such as respiration and pulse and its frequency pattern, and identifying the suspicious person from the action, and a suspicious person detecting device used therefor And a security server.

  In recent years, criminal acts such as stalking acts against women have become a problem in addition to crimes such as empty nests that enter homes. For this reason, there is a system that detects the intrusion of a suspicious person by breaking glass or breaking a door and issues an alarm signal or reports to a security company. However, in such a system, since an intruder detects an intrusion only after destroying the things in the house, it will be dealt with after being damaged.

Therefore, Patent Document 1 discloses a crime prevention system that determines whether a person is a suspicious person by monitoring the suspicious person by measuring the distance to the object using a microwave distance detection sensor that measures the distance to the suspicious person. It is disclosed. Patent Document 2 discloses a crime prevention system that takes a picture of a visitor, compares it with face image data stored in a wanted person database, and informs the police or the like when it is determined to be a wanted person. A system is disclosed.
JP 2005-107696 A JP 2004-13871 A

  However, in Patent Document 1, it is necessary to determine a suspicious person only based on the distance measurement result, and it is not known whether or not a person approaches the house. In addition, it is impossible to determine whether the person who wanders around the house is the same person, and it is not possible to determine whether the person is a neighbor. Therefore, there is a possibility that erroneous determination frequently occurs. Moreover, in patent document 2, since it determines by a face image, when it lurks around a house at night, it is useless.

  An object of the present invention is to provide a crime prevention system capable of detecting a suspicious person and monitoring an action and promptly responding by notifying the situation, and a suspicious person detection device and a crime prevention server used therefor. .

  The present invention is a security system comprising a suspicious person detection device for detecting a suspicious person lurking in the vicinity of a house and a security server for notifying a suspicious person when receiving suspicious person detection information from the suspicious person detection device. The suspicious person detecting device detects a living body existing around the house, obtains a living body type, a distance to the living body, a detected direction, determines whether the detected living body is a suspicious person, and detects a living body. When the suspicious person is determined to be suspicious, the suspicious person detection information is sent to the security server, and the security server notifies the suspicious person from the suspicious person detection information sent from the suspicious person detection device. .

  Further, the present invention provides a suspicious person detection device that detects a suspicious person in the vicinity of a house and transmits the detected contents to a crime prevention server, and transmits / receives data to / from a living body type and living body that exist in the vicinity. If the detected living body is a suspicious person, the living body exploring part that searches the detected distance, the detected direction, the suspicious person determining part that determines whether the detected living body is a suspicious person, And a notification control unit for sending suspicious person detection information to a crime prevention server connected via the network.

  The living body exploration unit obtains the type of living body and the distance to the living body using Doppler radar, and further determines the direction in which the correlation value of the living body detection over 360 degrees is large as the living body detection direction, and is obtained from the detection result of the position detecting unit. In consideration of the moving direction of the terminal, the living body detection direction is corrected to obtain an actual living body direction.

  The notification control unit also notifies the user of suspicious person detection using an audio output device or a display device.

  The living body exploration unit detects at least one frequency pattern of heartbeat and respiration from the reflected wave from the living body, and identifies the living body by comparing with a prestored heartbeat or respiration frequency pattern for each living body type. It is characterized by that.

  The suspicious person judgment unit is the same person as the means for confirming whether the type of the living body is a human by the exploration result of the living body exploration section, the means for confirming the same person when it is a human In this case, there is provided a means for integrating the time when the distance to the living body is a predetermined value or less and a means for determining that the person is a suspicious person when the integrated time exceeds a reference value.

  The suspicious person judgment unit is the same person as the means for confirming whether the type of the living body is a human by the exploration result of the living body exploration section, the means for confirming the same person when it is a human And a means for integrating those whose distance to the living body is equal to or less than a predetermined value and a means for determining a suspicious person when the integrated distance exceeds a reference value.

  The suspicious person determination unit includes means for confirming that the type of the living body is not a human based on the search result of the living body searching unit and removing it from the search target.

  In addition, the present invention provides a suspicious person received from the suspicious person detecting device in a crime prevention server for notifying a suspicious person when information on suspicious person detection is obtained from a suspicious person detecting device that detects a suspicious person around the house. It is characterized by comprising means for analyzing the detection information to determine that the person is a suspicious person, and means for notifying the suspicious person when the result of the analysis determines that the person is a suspicious person.

  The analysis means obtains the heart rate and the respiration rate from the heart rate pattern and the respiration pattern detected by the suspicious person living body exploration unit, determines whether the heart rate and the respiration rate per unit time rise above a reference value, The informing means performs a warning that the user is in danger when it rises above a reference value.

  The analysis means accesses a criminal database and searches for a criminal history of a suspicious person detected based on suspicious person detection information.

  The notification means may notify the security organization, or may notify detection of a suspicious person using a local street broadcasting device.

  According to the present invention, not only the user is detected by detecting a suspicious person in the vicinity of the house and notifying the detection information to the user and the security organization or using the local street broadcasting. The security organization should be able to respond early. For this reason, it is possible not only to detect the intrusion for the first time after damage, but to detect it at the previous stage, which is useful for preventing crimes. Furthermore, when notifying by using local street broadcasting, not only is the warning given to the surrounding residents, but the notification content is also transmitted to the suspicious person, so the suspicious person is likely to refrain from acting. In this way, crime can be prevented in advance.

  Further, the living body exploration unit obtains the living body type and the distance to the living body using Doppler radar, and further obtains the direction in which the correlation value of the living body detection over 360 degrees is large as the living body detection direction, from the detection result of the position detecting unit. Further, since the living body detection direction is corrected in consideration of the moving direction of the portable terminal, the position of the living body can be accurately detected even when the portable terminal is moving.

  The notification control unit also notifies the user of the suspicious person detection using the voice output device or the display device, so that the user can be alerted and promptly responded.

  In addition, since the frequency pattern of heartbeat and respiration is used to identify the suspicious person, it is possible to detect the type of detected living body, whether it is the same living body, and the like.

  Further, when the suspicious person determination unit is the same person, the integrated value of the time when the distance to the living body is a predetermined value or less, or the integrated distance where the distance to the living body is a predetermined value or less exceeds a reference value By determining as a suspicious person, it is possible to detect a person who has a high possibility of being a suspicious person.

  Furthermore, since it is confirmed that the type of the living body is not a human being based on the search result of the living body searching unit and is excluded from the search target, it is possible to narrow down the detection target and perform highly accurate detection.

  In addition, the notification control unit notifies the detected suspicious person information in a conversation format that prompts the user to respond, so that the suspicious person can be notified in the form of a natural conversation without making the suspicious person aware of it. .

  In addition, when the rate of increase of the heart rate and respiration rate per unit time exceeds the reference, the user can respond early by giving a warning.

  By accessing the criminal database and searching for the criminal history of the suspicious person detected based on the suspicious person detection information, it is possible to identify whether the detected suspicious person is a dangerous person, thereby enabling early response.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory diagram showing an example of a crime prevention system according to the present invention.
This crime prevention system includes a suspicious person detection device 10, a network 2, a crime prevention server 3, a regional broadcast device 4, a street broadcast device 5, a criminal database 6, and a security company 7.

  Although described in detail later, the suspicious person detection device 10 has a suspicious person detection function. When a suspicious person is detected, the detection information is sent to the security server 3 via the network 2. In this embodiment, the suspicious person detection device 10 is a single device, but the suspicious person detection portion is connected to a personal computer to form a suspicious person detection device, which is connected to the security server 3 via the Internet (network 2). You may let them. Further, the suspicious person detecting device 10 may be a mobile phone having a suspicious person detecting function or a PDA (Personal Digital Assistants).

  The security server 3 confirms whether or not the detected person is really a suspicious person based on the detection information of the suspicious person detection device 10, and further compares the data of the criminal database 6 with the history of the criminal. After confirming the above, the user and the security company 7 (or the police) are notified, or the street broadcasting device 5 closest to the user is selected, and the warning information is broadcast by street broadcasting via the regional broadcasting device 4.

FIG. 2 is a block diagram illustrating an example of a suspicious person detection device according to the present invention.
The suspicious person detection device 10 includes a receiving unit 12 and a transmitting unit 13 that perform communication via the network 2, a control unit 14 that controls each unit, a display processing unit 15 that performs processing so that video data can be displayed, and a liquid crystal display. Unit 16, audio processing unit 17 that processes audio data to be received or transmitted, speaker 19, storage unit 20 that stores data, input key 21 on which a user performs operation input, buzzer 22, biological body that transmits and receives electromagnetic waves for biological detection The detection antenna 23, the living body exploration part 24 for detecting the living body, the GPS (Global Positioning System) antenna 25, the position detection part 26 for detecting the position of the suspicious person detection device, whether the person is a suspicious person from the biological information and the position information. A suspicious person determination unit 27 for determination is provided.

FIG. 3 is a block diagram illustrating an example of the living body exploration unit 24.
The living body exploration unit 24 has a function of exploring the living body type, the distance to the living body, and the detection direction of the living body. A phase change detection unit 35, an amplitude change detection unit 36, a living body determination unit 37, and a distance / direction detection unit 38 are provided.

  The living body detection technique uses a life form discovery technique that has been developed in recent years. This technology was developed to discover victims who were buried alive due to earthquakes, debris flows, avalanches, tunnel collapse accidents, etc., and was radiated with high-frequency radio waves from antennas and included in reflected waves from living organisms. The life form is detected by detecting the breathing and heartbeat of the survivor.

  The biological exploration unit 24 of the suspicious person detection device 10 emits a microwave or a millimeter wave from the biological detection antenna 23, analyzes the reflected wave to obtain a minute displacement and a frequency of the displacement, and detects respiration and a heartbeat (pulse). To do. This device is a kind of Doppler radar. The Doppler radar is a radar that can observe not only the position but also the moving speed of the observation object by observing the frequency shift due to the Doppler effect. This is a technique similar to that used in a living body detection apparatus that searches for a buried person, and can detect displacement (amplitude) in millimeters. The breathing and heartbeat displacement and frequency patterns are stored in advance in the storage unit 20 and compared with this pattern to determine whether it is a living organism and the type of living body. Since the breathing pattern and the heartbeat pattern have patterns unique to living things, it is possible to identify whether the detected living body is a human being, a dog, a cat, or the like. Furthermore, since there are individual differences in breathing patterns and heartbeat patterns even with the same type, it is possible to identify whether the detected living bodies are the same. Since both the suspicious person detection device 10 and the detected living body are moving, it is necessary to analyze the data detected in consideration of this and obtain the detection pattern of the living body.

Next, the operation of the living body exploration unit 24 in FIG. 3 will be described. The living body exploration unit 24 detects a plurality of living bodies at the same time, identifies the living body type, and determines whether or not the person is a suspicious person.
Part of the signal oscillated from the oscillating unit 33 enters the directional coupler 31 and radiates high-frequency electromagnetic waves via the living body detection antenna 23. The emitted electromagnetic wave is irradiated to the living body. The irradiated living body emits a reflected wave whose phase and amplitude are changed by the vertical movement of the abdomen due to respiration and the chest due to heartbeat. The reflected wave enters the living body detection antenna 23 and is mixed by the frequency coupler 32 with a part of the signal oscillated from the oscillation unit 33 via the directional coupler 31. The mixed signal is divided into a phase information signal and an amplitude information signal by the phase / amplitude detector 34. The phase information signal enters the phase change detection unit 35 and detects the phase change between the signal oscillated from the oscillation unit 33 and the signal reflected from the living body. The amplitude information signal enters the amplitude change detector 36 and detects the amplitude change of the signal oscillated from the oscillator 33 and the signal reflected from the living body.

  Breathing and heartbeats are present not only in humans but also in dogs and cats, but because the frequency patterns of phase and amplitude displacements differ depending on the type of living body, the frequency patterns of each living body type are stored in the storage unit 20 in advance. Keep it. It is necessary to investigate and store frequency pattern data of a detectable living body as much as possible for these frequency patterns for each living body type. The living body determination unit 37 determines the living body type by comparing with the respiration / heart rate pattern of the living body type stored in the storage unit 20. The detection result is sent to the suspicious person determination unit 27.

  In addition, a search is performed by radiating radio waves around 360 degrees around the suspicious person detection device 10. Then, the distance / direction detection unit 38 obtains the detection direction and distance of the detected living body. The distance / direction detection unit 38 obtains the detection direction of the living body based on the latitude and longitude based on the position information of the position detection unit 26. Furthermore, the accurate position of the living body is obtained from the distance to the living body.

FIG. 4 is a block diagram illustrating an example of the position detection unit 26.
The position detection unit 26 includes a GPS processing unit 41 and a position information processing unit 42. The position information processing unit 42 obtains accurate latitude and longitude from GPS data.

  The living body exploration unit 24, the position detection unit 26, and the antennas 23 and 25 can be installed at positions away from the main body of the suspicious person detection device 10. It can be installed at a position where it can be easily detected, and the detection data can be sent to the apparatus body wirelessly.

  FIG. 5 is a conceptual diagram in which the living body exploration unit 24 of the suspicious person detection device 10 detects the actual direction to the living body. The living body exploration unit 24 of the suspicious person detection device 10 possessed by the user A detects the living body S using Doppler radar. As shown in FIG. 5, the detection result of the distance / direction detection unit 38 is as follows. This is the same as when the user A is present at the origin of the X and Y coordinates and the living body S is detected.

  First, the distance / direction detection unit 38 of the living body exploration unit 24 detects a distance (L + B) to the living body S by Doppler radar. However, the detected value includes the respiratory displacement B of the living body S. Since the amplitude of the respiratory displacement B is easily detected by the detection of the amplitude change detection unit 36, the actual distance L to the living body S can be easily obtained.

  Next, the moving distance and moving direction of the suspicious person detecting device 10 can be known from the detection value of the position detecting unit 26. The position detection unit 26 obtains a vector δ indicating the movement distance and the movement direction from the detection value, and outputs the vector δ to the distance / direction detection unit 38. In addition, microwaves or millimeter waves are emitted from the living body detection antenna 23 over 360 degrees. For example, the distance / direction detection unit 38 irradiates a radio wave at intervals of 1 second from −180 degrees to 180 degrees and detects a value detected by the phase / amplitude detection unit 34 based on the reflected radio wave. Find the correlation value. In this way, the distance / direction detection unit 38 accumulates 360 correlation values, and sets the direction of the largest correlation value as the detection direction. The direction at this time is defined as an angle θ with respect to the reference line.

  The suspicious person detection device 10 has moved by δ due to the detection of the position detection unit 26, and it is necessary to obtain the actual detection direction of the living body S in consideration of this. Assuming that the end point of the vector δ is C and the center of the living body S is S0, the correction vector δs connects the end point of the vector δ moved by the user A and the living body S, as shown in FIG. Since (L + B) does not change, the distance (L + B) is subtracted from the distance from S0 to C. The vector actually moved by the user A is (vector δ + vector δs) in FIG.

Next, an outline of suspicious person detection and notification processing by the suspicious person detection device 10 and the crime prevention server 3 will be described.
The suspicious person determination unit 27 of the suspicious person detection device 10 receives a biological type, a detection direction, a detection distance, and a detection position from the biological exploration unit 24. The suspicious person determination unit 27 determines that the detected person is a suspicious person when the detected person exists within a predetermined distance for a predetermined time or more. Then, the determination is sent to the control unit 14. The control unit 14 sends the suspicious person detection information to the security server 3 through the transmission unit 13 and the network 2.

  The server 3 analyzes the suspicious person detection information and confirms again whether it is a suspicious person. If it can be judged as a suspicious person, the detection information is also notified to the security company and the police. At the same time, the area where the user is located is determined based on the suspicious person detection information, and the nearest street broadcasting device 5 is identified. In particular, the contents of the broadcast are selected based on the risk level (tranquility) of the area and the behavior analysis of the suspicious person. This broadcast is intended not only to notify users of suspicious individuals, but also to notify suspicious individuals that a third party other than the users is monitoring their actions and to refrain from such actions. It is.

  FIG. 6 is a flowchart illustrating an example of specific processing in suspicious person detection by the suspicious person detection device.

  For example, when the user presses the suspicious person detection key of the input key 21 to turn on the suspicious person detection function of the suspicious person detection device 10 (step S1), the living body exploration unit 24 and the position detection unit 26 are activated.

  First, the position detection unit 26 detects the position of the suspicious person detection device (step S2). Normally, the GPS processing unit 41 acquires GPS data from the satellite via the antenna 25, and the position information processing unit 42 acquires position data based on the GPS data.

  Next, the living body exploration unit 24 searches the surrounding 360 degrees with the electromagnetic wave to detect the living body (step S3). The biological determination unit 37 compares the detection patterns of the phase change detection unit 35 and the amplitude change detection unit 36 with the biological type pattern stored in the storage unit 20, and detects the biological type. At the same time, the distance / direction detection unit 38 detects the distance and direction in which the living body is detected. The biological type, detection distance, and detection direction detected in this way are stored in the storage unit 20.

  In response to the detection result of the living body exploration unit 24, the suspicious person determination unit 27 determines whether or not the detected living body is a suspicious person. First, it is determined whether the living body type is human (step S4). Here, when the living body type is not human, it may be excluded from the detection target. As a result, it is possible to narrow down the detection target, and detection with high accuracy is possible.

  If it is a human, it is confirmed whether they are the same person (step S5). In the case of a human being, the frequency pattern of the phase and amplitude is stored in the storage unit 20, and the determination is made based on whether or not it is the same pattern as the stored pattern.

  If they are the same person, it is determined from a detection result of the distance / direction detection unit 38 whether the distance is within a predetermined distance (for example, 30 m) (step S6). Here, the time within the predetermined distance is stored in the storage unit 20. Then, the time within the predetermined distance is counted and integrated, and it is confirmed whether the predetermined time or more has been reached (step S7). When the predetermined time is exceeded, persons whose detection living bodies are not detected such as family members or neighbors are stored in the storage unit 20 in advance, and it is confirmed whether or not they are not applicable (step S8). After confirmation, the suspicious person determination unit 27 determines that the person is a suspicious person (step S9). Then, the result is sent to the control unit 14, and the control unit 14 detects the suspicious person detection information stored in the storage unit 20 (detected living body type, distance and direction (position) to the detected living body, time within a predetermined distance). Etc.) and transmitted to the security server 3 via the transmission unit 13, and the user is notified of the suspicious person detection (step S10). If NO in steps S4 to S7 and Yes in step S8, the detected living body is not a suspicious person, and the process ends.

  Although an example has been described as a suspicious person detection criterion, the present invention is not limited to this. For example, in step S7, a suspicious person is determined when the accumulated distance tracked at an interval within a predetermined distance exceeds a certain value, not at a time within a predetermined distance. In this case, the suspicious person tracking integrated distance is included as the suspicious person detection information.

  When notifying the user, the control unit 14 uses the speaker 19 to give a notification such as “A suspicious person has been detected”. At the same time, the display unit 16 displays detection information (detected living body type, distance and direction (position) to the detected living body, time within a predetermined distance, etc.). Thus, by notifying the user, the user can take an early action.

  FIG. 7 is a flowchart showing an example of a suspicious person notification process performed by the crime prevention server.

  The suspicious person detection information transmitted from the suspicious person detection device 10 is input to the security server 3 via the network 2 (step S11). The security server 3 analyzes the suspicious person detection information (step S12) and confirms whether there is a possibility of a suspicious person (step S13). If it can be confirmed that the person is a suspicious person, the breathing and heartbeat patterns of the suspicious person are read and the criminal database 6 is accessed (step S14). The criminal database 6 stores criminal information including fingerprint data of each criminal, frequency patterns of breathing and heartbeat, and criminal history. The security server 3 searches for a common pattern based on the detected breathing and heartbeat frequency patterns, and if there is a criminal whose pattern matches, extracts criminal information and detects the suspicious person detected by the suspicious person detection device 10. Along with the information, the terminal of the security company 7 is notified (step S15).

  Upon receiving the report, the security company 7 dispatches security personnel to deal with it. In some cases, the security company reports to the police and requests the police officers to be dispatched. In this embodiment, the system once has a report to the security company, but it may be reported directly to the police. In this way, it is possible to quickly cope with a dangerous situation that cannot be dealt with by the user alone.

  Moreover, based on this analysis, the street broadcasting apparatus 5 close | similar to a user's position (position of the suspicious person detection apparatus 10) is selected (step S16). A notification wording is selected according to the urgency (step S17). Then, the broadcast wording is broadcast using the street broadcasting device 5 selected using the regional broadcasting device 4 (step S18).

  The wording broadcasted from the street broadcasting device 5 may simply be “Notify. There may be a suspicious person in this area. Please note.” With this alone, the suspicious person is informed that he / she has been detected, thereby having an effect of refraining from acting.

  Also, as a result of analyzing the suspicious person's situation from the pulse rate and respiratory rate of the suspicious person, if the heart rate and respiratory rate per unit time rise above the reference value, the suspicious person is in the situation to take action "The police officer is heading there. Please watch out for the behavior of the suspicious person." This is also notified to the security company or the police. This not only informs the user and the security company (or police) of the urgency, but also warns the suspicious person and refrains from acting.

It is explanatory drawing which shows an example of the crime prevention system which concerns on this invention. It is a block diagram which shows an example of the mobile phone with a suspicious person detection function which concerns on this invention. It is a block diagram which shows an example of a biometric search part. It is a block diagram which shows an example of a position detection part. It is a conceptual diagram in which the biological body search part of a mobile telephone detects the actual direction to a biological body. It is a flowchart which shows an example of the specific process in a suspicious person detection of a suspicious person detection apparatus. It is a flowchart which shows an example of a suspicious person alerting | reporting process which a crime prevention server performs.

Explanation of symbols

2 Network 3 Security server 4 Regional broadcasting device 5 Street broadcasting device 6 Criminal database 7 Security company 10 Suspicious person detection device 12 Receiving unit 13 Transmitting unit 14 Control unit 15 Display processing unit 16 Display unit 17 Audio processing unit 19 Speaker 20 Storage unit 21 Input key 22 Buzzer 23 Biological detection antenna 24 Biological exploration unit 25 GPS antenna 26 Position detection unit 27 Suspicious person determination unit 31 Directional coupler 32 Frequency coupler 33 Oscillation unit 34 Phase / amplitude detection unit 35 Phase change detection unit 36 Amplitude change detection unit 37 Living body determination unit 38 Distance / direction detection unit 41 GPS processing unit 42 Position information processing unit

Claims (13)

A security system comprising a suspicious person detection device that detects a suspicious person lurking in the vicinity of a house, and a security server that performs suspicious person notification when receiving suspicious person detection information from the suspicious person detection device,
The suspicious person detection device includes:
When the living body existing around the house is detected, the type of living body, the distance to the living body, the detected direction is obtained, it is determined whether the detected living body is a suspicious person, and when the detected living body is determined to be a suspicious person, Send suspicious person detection information to the security server,
The security server is
A crime prevention system characterized in that a suspicious person is notified from suspicious person detection information sent from the suspicious person detection device. In the suspicious person detection device that detects a suspicious person around the house and transmits the detected contents to the crime prevention server,
A transceiver for transmitting and receiving data;
A living body exploration unit for exploring the type of living body present in the surroundings, the distance to the living body, and the detected direction;
A suspicious person determination unit that determines whether the detected living body is a suspicious person;
A suspicious person detection device comprising: a notification control unit that sends suspicious person detection information to a crime prevention server connected via a network when a suspicious person determination part determines that a detected living body is a suspicious person. The biological exploration unit
The Doppler radar is used to determine the type of living body and the distance to the living body, and the direction in which the correlation value of living body detection over 360 degrees is large is set as the living body detection direction, and the moving direction of the mobile terminal obtained from the detection result of the position detection unit is taken into account The suspicious person detection device according to claim 2, wherein the living body detection direction is corrected to obtain an actual living body direction.   The suspicious person detection device according to claim 2, wherein the notification control unit also notifies the user of suspicious person detection using an audio output device or a display device. The biological exploration unit
A frequency pattern of at least one of heartbeat and respiration is detected from a reflected wave from a living body, and the living body is specified by comparing with a prestored heartbeat or respiration frequency pattern for each living body type. Item 5. The suspicious person detection device according to item 2, 3 or 4. The suspicious person determination unit
Means for confirming whether the type of the living body is a human by the search result of the living body searching unit;
If you ’re a human, you ’ll have a way to check if you ’re the same person,
If the same person, means for integrating the time to the living body distance below a predetermined value;
6. The suspicious person detection device according to claim 2, further comprising means for determining a suspicious person when the accumulated time exceeds a reference value. The suspicious person determination unit
Means for confirming whether the type of the living body is a human by the search result of the living body searching unit;
If you ’re a human, you ’ll have a way to check if you ’re the same person,
If the same person, means for integrating the distance to the living body below a predetermined value;
6. The suspicious person detection device according to claim 2, further comprising means for determining that the accumulated distance exceeds a reference value as a suspicious person. The suspicious person determination unit
The suspicious person detection device according to claim 6 or 7, further comprising means for confirming that the type of the living body is not a human being based on a search result of the living body searching unit and removing it from the search target. In the crime prevention server that reports the suspicious person when the suspicious person detection information is obtained from the suspicious person detection device that detects the suspicious person around the house,
Means for analyzing the suspicious person detection information received from the suspicious person detecting device and determining that it is a suspicious person;
A security server, comprising: means for notifying a suspicious person when it is determined that the person is a suspicious person as a result of analysis. The analysis means includes
From the heart rate pattern and breathing pattern detected by the suspicious person biopsy unit, determine the heart rate and respiration rate, determine whether the heart rate and respiration rate per unit time rise above the reference value,
The notification means includes
8. The crime prevention server according to claim 7, wherein a warning that the user is in danger is given when the reference value is exceeded. The analysis means includes
The crime prevention server according to claim 6 or 8, wherein a crime history of a suspicious person detected based on suspicious person detection information is searched by accessing a criminal database. The notification means includes
The security server according to claim 6, 7 or 8, wherein the security organization is notified. The crime prevention server according to claim 6, 7 or 8, wherein the notification means notifies the detection of a suspicious person using a local street broadcasting device.

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