JP4752520B2 - Vehicle anti-theft system - Google Patents

Description

The present invention relates to a vehicle anti-theft system for preventing theft of the vehicle.

  2. Description of the Related Art Conventionally, as a device for preventing theft of a vehicle, a device having a configuration in which an alarm is notified when the presence of a suspicious person is detected based on vehicle vibration or the like is known. However, if the suspicious person runs away from the time when the owner of the vehicle hears the alarm notification and rushes to the vehicle, the suspicious person cannot be specified. In view of this, a configuration has been proposed in which a camera is installed in a vehicle and the suspicious person can be identified by automatically taking a picture when the presence of the suspicious person is detected.

For example, in Patent Document 1, when a vibration detection sensor or a human body detection sensor detects that a suspicious person has approached the vehicle, it starts shooting around the vehicle and transmits data of the shot image to the alarm notification device. A theft detection device is disclosed.
JP 2002-166823 A

  In the configuration in which the suspicious person is photographed as described above, the possibility of obtaining a photographed image that is effective in identifying the suspicious person increases as the photographing amount increases, but the data amount of the photographed image increases accordingly. When the amount of captured image data increases as described above, it is necessary to secure a large storage capacity for storing captured image data. In addition, when the captured image data is transmitted to the outside, the amount of communication increases, which is disadvantageous in terms of communication time and communication cost. For this reason, the amount of photographing must be limited to a certain amount, and there is a problem that the possibility of obtaining a photographed image effective in identifying a suspicious person is reduced.

  The present invention has been made in view of these problems, and an object of the present invention is to make it possible to obtain a captured image effective for identifying a suspicious person while suppressing the amount of data to be stored.

In the vehicle antitheft system according to claim 1 of the present invention made to achieve the above object, in the vehicle antitheft device used by being mounted on a vehicle, the photographing means photographs the vehicle interior and the vehicle exterior. Then, image data representing the captured image is generated. Further, the suspicious person judging means judges the existence of the suspicious person in the vehicle compartment or in the vicinity of the vehicle. Then, the imaging control unit causes the imaging unit to perform imaging when it is determined by the suspicious person determination unit that a suspicious person is present. On the other hand, the importance determining means determines the importance of the image data based on the photographed image represented by the image data generated by the photographing means, and the storage control means has a high importance determined by the importance determining means. Is stored in the storage means in association with the importance. Then, the stored data transmission unit transmits the image data stored in the storage unit to the management apparatus in descending order of importance determined by the importance determination unit . In addition, the importance here is a degree of effectiveness in identifying a suspicious person. The timing at which the stored data transmission unit transmits the image data to the management apparatus includes, for example, a case where a suspicious person enters the vehicle. Here, it is possible to determine that the suspicious person has entered the vehicle based on, for example, the high degree of importance determined by the importance level determining means or the determination result by the suspicious person determining means.

  On the other hand, in this vehicle antitheft system, in the management device capable of data communication with the vehicle antitheft device, the receiving means receives the image data transmitted from the vehicle antitheft device, and the display means. Displays the image data received by the receiving means.

  That is, in this anti-theft system for vehicles, in the anti-theft device for vehicles, the image data for all the captured images is not stored in the storage means, but is selected so that the most important one is prioritized. And stored in the storage means.

For this reason, according to this antitheft system for vehicles, it is possible to obtain a captured image effective for specifying a suspicious person while suppressing the amount of data to be stored.
Also, serial憶制control means, the image data in association with the importance and the photographing time are stored in the storage means, importance degree determination means, a photographic image similar to the captured image represented by the image data generated by the photographing means image data representing it is determined whether stored in a storage means, that determine the importance of the image data generated by the photographing means based on the difference in their shooting time when it is determined that the stored . Specifically, for example, when the difference in shooting time is less than a predetermined value, if the importance is determined to be lower than when the difference is greater than or equal to the predetermined value, there is a possibility that the contents of the shot images are duplicated The importance of high image data becomes low. As a result, it is possible to prevent other image data from being erased in order to store duplicate image data.
The stored data transmission means transmits the image data stored in the storage means to the management apparatus together with the photographing time, and the display means displays the photographed images represented by the image data received by the receiving means in order of photographing time (for example, You may comprise so that it may be able to browse in a new order.
In the antitheft system for a vehicle according to claim 2 , in the antitheft device for a vehicle used by being mounted on a vehicle, the photographing means photographs the vehicle interior and the exterior of the vehicle interior and generates image data representing the captured image. To do. Further, the suspicious person judging means judges the existence of the suspicious person in the vehicle compartment or in the vicinity of the vehicle. Then, the imaging control unit causes the imaging unit to perform imaging when it is determined by the suspicious person determination unit that a suspicious person is present. On the other hand, the importance determining means determines the importance of the image data based on the photographed image represented by the image data generated by the photographing means, and the storage control means has a high importance determined by the importance determining means. Is stored in the storage means in association with the importance and photographing time. Then, the stored data transmission unit transmits the image data stored in the storage unit to the management device. Further, the importance level determination unit determines whether or not image data representing a captured image similar to the captured image represented by the image data generated by the imaging unit is stored in the storage unit, and determines that it is stored. In this case, the importance of the image data generated by the photographing means is determined based on the difference between the photographing times. On the other hand, in this vehicle antitheft system, in the management device capable of data communication with the vehicle antitheft device, the receiving means receives the image data transmitted from the vehicle antitheft device, and the display means. Displays the image data received by the receiving means.
Further, as described in claim 3 , for example, when the storage control unit determines that there is no free area in the storage unit for storing the image data generated by the shooting unit, the storage control unit generated the shooting unit. The image data may be selected by deleting the image data having the lowest importance among the image data and the image data stored in the storage means. In this way, as much image data as possible can be stored within a predetermined storage capacity range.

Further, as described in claim 4 , for example, if the storage control means stores the image data in the storage means at a resolution corresponding to the importance, the image data can be efficiently stored. Specifically, if the higher the importance, the higher the resolution is stored in the storage means, it is possible to memorize a large number of image data with a limited storage capacity while enabling detailed analysis of the image data with a higher importance. can do.

By the way, as a suspicious person judging means for judging the existence of a suspicious person, for example, a vibration detecting means for detecting the vibration of the vehicle, or a human body for detecting a human body existing in or near the vehicle using infrared rays or ultrasonic waves. A configuration in which a determination is made using a detection means or the like is given. On the other hand, for example, as described in claim 5 , a configuration in which the presence of a suspicious person is determined by analyzing image data generated by a photographing unit is also conceivable. In this way, it is possible to determine the presence of a suspicious person without using vibration detection means, human body detection means, or the like.

Further, the determination of the importance of the image data is based on, for example, a determination result by the suspicious person determining means (credibility (possibility) that the suspicious person exists, the position of the suspicious person (distance from the vehicle), etc.) It is possible to do it. For example, the greater the degree of vibration detected by the vibration detecting means, the higher the degree of importance can be determined, or the closer the position of the human body detected by the human body detecting means to the vehicle, the higher the degree of importance can be determined. On the other hand, for example, as described in claim 6 , the importance of the image data is determined based on the area of the suspicious person's face included in the photographed image represented by the image data generated by the photographing means. Therefore, it is possible to determine the importance of the image data that can easily identify the suspicious person.

Specifically, for example, as described in claim 7 , it is determined that a specific color (for example, skin color) portion in the captured image is a suspicious person's face, or as described in claim 8 , It is possible to determine the suspicious person's face by performing face recognition processing based on the image.

On the other hand, as described in claim 9 , it is also possible to determine the importance of the image data based on the magnitude of contrast of the photographed image represented by the image data generated by the photographing means. Specifically, the higher the contrast (the clearer the captured image), the higher the importance can be determined.

Further, in the vehicle antitheft system according to the tenth aspect , the stored data transmitting means transmits the image data stored in the storing means to the management apparatus together with the importance. Then, the display means displays the captured image represented by the image data received by the receiving means so that it can be browsed from the one with the highest importance. For example, a display method of arranging and displaying in descending order of importance or sequentially displaying in order of increasing importance may be mentioned. According to such a configuration, it is possible to quickly browse a captured image having a high degree of importance in the management device, and it is possible to prevent an important captured image from being missed.

The stored data transmission means transmits the image data stored in the storage means to the management device from the most important one, so that the power supply line from the power source (battery) to the vehicle antitheft device is suspicious. It is possible to reduce the possibility that image data with high importance cannot be transmitted due to being cut off by, for example.

Further, in the vehicle antitheft system according to claim 11 , the management device selects the received image data having a high degree of importance, and displays the selected image data as the image data received by the receiving unit. Send to a possible external communication device. Here, the external communication device may be possessed by, for example, a security guard or a vehicle owner. According to this configuration, it is possible to allow a security guard or a vehicle owner to view important captured images while suppressing the amount of data to be transmitted.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
FIG. 1 is a block diagram illustrating a schematic configuration of a vehicle antitheft system according to the first embodiment.
As shown in the figure, this vehicle antitheft system centrally manages information from a vehicle antitheft device 20 used in a state where it is mounted on a vehicle (automobile) 10 and a plurality of vehicle antitheft devices 20. And a management device 30 used in the vehicle antitheft center.

The vehicle antitheft device 20 includes a camera 21, a vibration sensor 22, a human body detection sensor 23, a communication unit 24, an image memory 25, and a control unit 26.
The camera 21 is for photographing the interior and the exterior of the vehicle 10 simultaneously. Specifically, it is a CCD camera having a lens capable of photographing in all directions (360 °), and is installed at a position near the map lamp in the interior of the vehicle 10, so that the interior of the vehicle 10 and the outdoor through the glass Is captured and image data representing the captured image is generated.

The vibration sensor 22 detects the vibration of the vehicle 10.
The human body detection sensor 23 is a radio wave sensor, and detects the presence or absence of a human body outside the vehicle 10 and the distance from the vehicle 10 to the human body.

The communication unit 24 accesses the base station by wireless communication and performs data communication via the Internet.
The image memory 25 is a storage medium capable of rewriting data, and has a storage capacity capable of storing a plurality of image data.

The control unit 26 is configured around a microcomputer including a CPU, a ROM, a RAM, and the like, and comprehensively controls each unit constituting the antitheft device 20 for the vehicle.
On the other hand, the management device 30 includes a communication unit 31 that performs data communication via the Internet, a display unit 32 that displays an image represented by image data received by the communication unit 31, and a storage unit 33 that stores various data. And a control unit 34 for controlling them. Here, in the storage unit 33, the identification information of the plurality of vehicle antitheft devices 20 and the communication address of the mobile phone 50 possessed by the owner of the vehicle 10 on which each vehicle antitheft device 20 is mounted ( For example, an e-mail address) is stored in association with each other.

Next, the antitheft process executed by the control unit 26 of the vehicle antitheft device 20 will be described with reference to the flowchart of FIG.
When the theft prevention process is started, first, in S101, it is determined whether or not there is a suspicious person in or near the vehicle 10, and if it is determined that there is a suspicious person, the process proceeds to S102. Specifically, when the presence of a human body outside the vehicle 10 is detected by the human body detection sensor 23, it is determined that there is a suspicious person.

In S <b> 102, the camera 21 performs shooting and generates image data representing the shot image.
Subsequently, in S103, importance level determination processing for determining the importance level of the image data (the degree of effectiveness in identifying the suspicious person) based on the captured image represented by the generated image data is performed. In this embodiment, the importance is determined in four stages, with the highest importance being “4” and the lowest importance being “1”. The specific contents of the importance level determination process will be described later (FIG. 3).

In step S104, the generated image data is adjusted to a resolution corresponding to the importance level.
Subsequently, in S105, it is determined whether or not the image data after resolution adjustment can be stored in the image memory 25. That is, it is determined whether or not the image memory 25 has a free area for storing image data.

  If it is determined in S105 that there is no free space for storing the image data, the process proceeds to S106, and among the image data generated in S102 and the image data stored in the image memory 25, , Erase the least important image data. Thereafter, the process returns to S105.

  On the other hand, if it is determined in S105 that there is a free space for storing the image data, the process proceeds to S107, and the image data is stored in the image memory 25. Specifically, the image data is stored in association with the importance and the photographing time (current time).

Subsequently, in S108, it is determined whether or not the importance determined in S103 is “4” (the highest level).
If it is determined in S108 that the importance is not “4”, the process returns to S101.

  On the other hand, if it is determined in S108 that the degree of importance is “4”, there is a high possibility that a suspicious person has entered the vehicle 10, so that the process proceeds to S109 and all the images stored in the image memory 25 are stored. The communication unit 24 is caused to perform processing for transmitting theft notification data including the data, the importance level, the shooting time, and the identification information of the vehicle antitheft device 20 to the management device 30. Specifically, the image data is transmitted in descending order of importance. Thereafter, the process returns to S101.

Next, the importance level determination process executed in S103 in the antitheft process (FIG. 2) will be described with reference to the flowchart of FIG.
When this importance level determination process is started, first, in S201, it is determined whether or not image data representing a photographed image similar to the photographed image represented by the image data generated in S102 is stored in the image memory 25.

  If it is determined in S201 that image data representing a similar captured image is stored in the image memory 25, the process proceeds to S202, where it is determined whether or not the difference between the captured times is less than a predetermined value. judge.

  If it is determined in S202 that the photographing time difference is less than the predetermined value, the process proceeds to S203, and the importance is determined to be “1”. That is, when there is a high possibility that the captured images are duplicated, the importance is set to the lowest “1”. Thereafter, the importance level determination process ends.

  On the other hand, if it is determined in S202 that the difference in shooting time is not less than a predetermined value (greater than a predetermined value), or if it is determined in S201 that image data representing a similar captured image is not stored in the image memory 25. In step S204, it is determined whether or not the vibration of the vehicle 10 is detected by the vibration sensor 22.

  If it is determined in S204 that the vibration of the vehicle 10 is not detected, the process proceeds to S205, and the skin color portion (specifically, skin color) included in the captured image represented by the image data generated in S102. The area of a predetermined hue range that can be determined is detected, and it is determined whether or not the area is equal to or greater than a predetermined value. That is, it is determined whether or not the suspicious person's face is greatly reflected on the assumption that the skin color portion in the photographed image is the suspicious person's face.

  If it is determined in S205 that the area of the skin color portion is not equal to or larger than the predetermined value (less than the predetermined value), the process proceeds to S203, and the importance is determined to be “1”. That is, when the vibration of the vehicle 10 is not detected and there is a low possibility that the suspicious person's face is reflected in the captured image, the importance is set to the lowest “1”. Thereafter, the importance level determination process ends.

  On the other hand, if it is determined in S205 that the area of the skin color portion is equal to or larger than the predetermined value, the process proceeds to S206, and the importance is determined to be “2”. That is, when the vibration of the vehicle 10 is not detected, but there is a high possibility that the suspicious person's face is reflected in the photographed image, the importance level is set to “2”. Thereafter, the importance level determination process ends.

  On the other hand, if it is determined in S204 that the vibration of the vehicle 10 is detected, the process proceeds to S207, and as in S205, the area of the skin color portion included in the photographed image represented by the image data generated in S102. Is detected, and it is determined whether or not the area is equal to or greater than a predetermined value.

  If it is determined in S207 that the area of the skin color portion is not equal to or larger than the predetermined value (less than the predetermined value), the process proceeds to S208, and the importance is determined to be “3”. That is, when the vibration of the vehicle 10 is detected, but the possibility that the face of the suspicious person is greatly reflected in the photographed image is low, the importance is set to “3”. Thereafter, the importance level determination process ends.

  On the other hand, if it is determined in S207 that the area of the skin color portion is equal to or larger than the predetermined value, the process proceeds to S209 and the importance is determined to be “4”. That is, when the vibration of the vehicle 10 is detected and there is a high possibility that the suspicious person's face is reflected in the photographed image, the importance is set to the highest “4”. Thereafter, the importance level determination process ends.

Next, image management processing executed by the control unit 34 of the management apparatus 30 will be described using the flowchart of FIG.
When this image management process is started, first, in S301, it is determined whether or not the theft notification data including the image data, the importance, the photographing time, and the identification information is received from the vehicle antitheft device 20, and the theft notification is performed. When it is determined that data has been received, the process proceeds to S302.

  In S302, a process for causing the display unit 32 to display image data included in the theft notification data received in S301 is performed. Specifically, the captured images (not limited to the captured images themselves but thumbnails and captured times) represented by the image data received in S301 are displayed on the display unit 32 in order of importance. As a result, the user of the management device 30 can efficiently browse the captured images with high importance.

  Subsequently, in S303, only the image data having the highest importance among the image data received in S301 is transmitted to the mobile phone 40 as a security guard terminal possessed by the security guard. Specifically, the image data is transmitted to one or a plurality of communication destination addresses stored in advance. Thereby, it is possible to view the captured image represented by the image data with the mobile phone 40 possessed by the security guard.

  Subsequently, in S304, only the image data having the highest importance among the image data received in S301 is transmitted to the mobile phone 50 as an owner terminal possessed by the owner of the vehicle 10. Specifically, the storage unit 33 refers to the communication address corresponding to the identification information included in the theft notification data received in S301, and transmits the image data to the communication address. Thereby, it becomes possible to view the captured image represented by the image data on the mobile phone 50 possessed by the owner of the vehicle 10. Thereafter, the process returns to S301.

  As described above, in the vehicle antitheft system of the first embodiment, the vehicle antitheft device 20 determines the importance based on the captured image (S103), and gives priority to the higher importance. The image data selected in the above is stored in the image memory 25 at a resolution according to the importance (S104 to S107). For this reason, according to this antitheft system for vehicles, it is possible to obtain a captured image effective for specifying a suspicious person while suppressing the amount of data to be stored. In particular, since the importance of image data that is likely to have duplicated image content is determined to be low, other important image data is deleted to save the duplicate image data. Can be prevented.

  In addition, the vehicle antitheft device 20 transmits the image data stored in the image memory 25 to the management device 30 from the most important data (S109). For this reason, it is possible to reduce the possibility that image data with high importance cannot be transmitted due to a power supply line from the battery of the vehicle 10 to the vehicle antitheft device 20 being cut by a suspicious person.

  On the other hand, in the vehicle antitheft system of the first embodiment, the management device 30 displays the captured image represented by the image data received from the vehicle antitheft device 20 so that it can be browsed from the most important one. (S302). For this reason, it is possible to quickly browse the captured image with high importance in the management device 30, and it is possible to prevent the important captured image from being missed.

  In addition, the management device 30 selects the image data having high importance from the image data received from the vehicle antitheft device 20, and transmits the selected image data to the mobile phones 40 and 50 (S303, S304). For this reason, it is possible to allow the security guard and the owner of the vehicle 10 to browse important captured images while suppressing the amount of data to be communicated.

  In the vehicle antitheft system of the first embodiment, the camera 21 corresponds to the photographing unit of the present invention, and the image memory 25 corresponds to the storage unit of the present invention. In addition, the control unit 26 that performs the process of S101 in the anti-theft process (FIG. 2) corresponds to the suspicious person determination unit of the present invention, and the control unit 26 that performs the process of S102 corresponds to the imaging control unit of the present invention. The control unit 26 that performs the process of S103 corresponds to the importance determination unit of the present invention, and the control unit 26 that performs the processes of S104 to S107 corresponds to the storage control unit of the present invention and performs the process of S109. The unit 26 corresponds to the stored data transmission unit of the present invention. On the other hand, the communication unit 31 corresponds to the communication unit of the present invention, and the control unit 34 that performs the process of S301 in the image management process (FIG. 4) corresponds to the reception unit of the present invention. The control unit 34 that performs the process corresponds to the display unit of the present invention, and the control unit 34 that performs the processes of S303 and S304 corresponds to the communication control unit of the present invention.

Next, a second embodiment will be described.
FIG. 5 is a block diagram illustrating a schematic configuration of the vehicle antitheft system according to the second embodiment.
As shown in the figure, in this vehicle antitheft system, the vehicle antitheft device 20 includes a vibration sensor 22 and a human body detection sensor as compared with the vehicle antitheft system (FIG. 1) of the first embodiment. Not different. Therefore, the same reference numerals are assigned to the common components and the description thereof is omitted, and only the differences will be described.

  The anti-theft processing executed by the control unit 26 of the vehicle anti-theft device 20 according to the second embodiment is the anti-theft processing (FIG. 2) executed by the control unit 26 of the vehicle anti-theft device 20 according to the first embodiment. In comparison, the contents of S101, S103, and S108 are different.

  That is, in S101, it is determined that there is a suspicious person when the image captured by the camera 21 is analyzed to detect the presence of a human body. Specifically, the determination is based on the change of the image with time, the size of the skin color portion, and the like.

In S103, the importance level determination process shown in the flowchart of FIG. 6 is performed instead of the above-described importance level determination process (FIG. 3).
When the importance determination process of FIG. 6 is started, first, in S401, the area of the skin color portion included in the photographed image represented by the image data generated in S102 is detected.

  Subsequently, in S402, the value of the skin color area detected in S401 (the area value itself may be used, or a calculated value obtained by dividing by a fixed value (for example, the area of one side glass) may be used as the importance level. decide. In other words, the higher the possibility that a suspicious person's face is reflected in the captured image is higher, the higher the importance is. Thereafter, the importance level determination process ends.

  On the other hand, in S108, it is determined whether or not the importance determined in S103 is equal to or greater than a predetermined value. If it is determined that the importance is not equal to or greater than the predetermined value, the process returns to S101. Since it is highly possible that the person has entered the vehicle 10, the process proceeds to S109.

  The effect similar to the vehicle antitheft system of the first embodiment described above can be obtained by the vehicle antitheft system of the second embodiment. In particular, the vehicle antitheft device 20 used in the vehicle antitheft system can be configured at low cost because it does not include the vibration sensor 22 or the human body detection sensor 23.

As mentioned above, although one Embodiment of this invention was described, it cannot be overemphasized that this invention can take a various form.
For example, in the vehicle antitheft device 20 of each of the above embodiments, the image data is transmitted to the management device 30 when the importance is high. However, the present invention is not limited to this. You may make it transmit, when an intrusion is detected based on the intrusion detection means which can detect that it invaded. Here, examples of the intrusion detection means include a radio wave type detection sensor installed in the room of the vehicle 10 (which can detect that the glass has been broken due to a change in the reflected wave). Further, when a large vibration is detected by the vibration sensor 22 (for example, when the detected vibration value exceeds a threshold value for intrusion detection that is higher than the threshold value for detecting the presence of vibration in S204), it is suspicious. It may be determined that the person has entered the vehicle 10 and the image data may be transmitted to the management device 30. Further, a user (user) may be able to set a criterion (for example, a threshold value) as to whether or not a suspicious person has entered the vehicle 10.

  Further, the method for determining the importance of the image data is not limited to those exemplified in the above embodiments. For example, it is possible to increase the importance as the vibration detected by the vibration sensor 22 is larger, or to increase the importance as the position of the human body detected by the human body detection sensor 23 is closer to the vehicle 10. Specifically, a state where there is no suspicious person, a state where the suspicious person is close to the vehicle 10, a state where the suspicious person is in contact with the vehicle body of the vehicle 10, a state where the suspicious person has entered the vehicle 10, etc. You may set the importance according to a state.

  On the other hand, in the vehicle antitheft device 20 of each of the above embodiments, the skin color portion included in the photographed image is determined to be the face of the suspicious person. However, the present invention is not limited to this. The face of the suspicious person may be determined by performing face recognition processing based on the result. In addition, the camera 21 of each of the above embodiments is assumed to be for color photography. For example, in the case of monochrome photography, the importance is increased as the area of the changed portion with the passage of time in the photographed image is larger. May be. That is, the area of the changed portion is assumed to be the face area. Further, since it can be determined that the image is clearly shown as the contrast value increases, the importance may be increased as the contrast value increases. Specifically, the area S of the changed portion is multiplied by the contrast value C and the closeness value of the human body detected by the human body detection sensor 23 (a value closer to the human body) K (S × C × It is possible to calculate K) as the importance.

  Moreover, in the vehicle antitheft device 20 of the first embodiment, the importance of image data that is highly likely to have duplicated captured images is set low, but this is not a limitation. Such image data may not be stored.

  Furthermore, in the vehicle antitheft device 20 of each of the embodiments described above, a still image taken by the camera 21 is used as image data, but the present invention is not limited to this, and a moving image may be used as image data.

  On the other hand, in the management device 30 of each of the above embodiments, the captured image represented by the image data is displayed on the display unit 32 so that it can be viewed in descending order of importance, but instead of or together with this, You may make it display on the display part 32 so that browsing can be carried out in order with the new imaging | photography time.

It is a block diagram showing schematic structure of the antitheft system for vehicles of a 1st embodiment. It is a flowchart of the antitheft process which the control part of the antitheft device for vehicles of 1st Embodiment performs. It is a flowchart of the importance determination process which the control part of the antitheft device for vehicles of 1st Embodiment performs. It is a flowchart of the image management process which the control part of the management apparatus of 1st Embodiment performs. It is a block diagram showing schematic structure of the antitheft system for vehicles of 2nd Embodiment. It is a flowchart of the importance determination process which the control part of the antitheft device for vehicles of 2nd Embodiment performs.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 20 ... Vehicle antitheft device, 21 ... Camera, 22 ... Vibration sensor, 23 ... Human body detection sensor, 24 ... Communication part, 25 ... Image memory, 26 ... Control part, 30 ... Management apparatus, 31 ... Communication 32, display unit, 33 ... storage unit, 34 ... control unit, 40, 50 ... mobile phone

Claims (11)

An antitheft system for a vehicle comprising an antitheft device for a vehicle mounted on a vehicle and a management device capable of data communication between the antitheft device for a vehicle,
The vehicle antitheft device is:
Photographing means for photographing the vehicle interior and the exterior of the vehicle interior and generating image data representing the photographed image;
Suspicious person judgment means for judging the existence of a suspicious person in the vehicle interior or in the vicinity of the vehicle;
Photographing control means for causing the photographing means to perform photographing when it is determined by the suspicious person judging means that a suspicious person exists;
Storage means for storing image data generated by the photographing means;
Importance determining means for determining the importance of the image data based on the photographed image represented by the image data generated by the photographing means;
Storage control means for storing in the storage means the image data selected so as to give priority to the high importance determined by the importance determination means, in association with the importance and photographing time ;
Storage data transmission means for transmitting the image data stored in the storage means to the management device in order of importance determined by the importance determination means,
The importance determining means determines whether or not image data representing a photographed image similar to the photographed image represented by the image data generated by the photographing means is stored in the storage means, and determines that it is stored. If so, determine the importance of the image data generated by the photographing means based on the difference between the photographing times,
The management device
Receiving means for receiving image data transmitted from the vehicle antitheft device;
A vehicle anti-theft system, comprising: display means for displaying image data received by the receiving means. An antitheft system for a vehicle comprising an antitheft device for a vehicle mounted on a vehicle and a management device capable of data communication between the antitheft device for a vehicle,
The vehicle antitheft device is:
Photographing means for photographing the vehicle interior and the exterior of the vehicle interior and generating image data representing the photographed image;
Suspicious person judgment means for judging the existence of a suspicious person in the vehicle interior or in the vicinity of the vehicle;
Photographing control means for causing the photographing means to perform photographing when it is determined by the suspicious person judging means that a suspicious person exists;
Storage means for storing image data generated by the photographing means;
Importance determining means for determining the importance of the image data based on the photographed image represented by the image data generated by the photographing means;
Storage control means for storing in the storage means the image data selected so as to give priority to the high importance determined by the importance determination means, in association with the importance and photographing time;
Storage data transmission means for transmitting the image data stored in the storage means to the management device,
The importance determining means determines whether or not image data representing a photographed image similar to the photographed image represented by the image data generated by the photographing means is stored in the storage means, and determines that it is stored. If so, determine the importance of the image data generated by the photographing means based on the difference between the photographing times,
The management device
Receiving means for receiving image data transmitted from the vehicle antitheft device;
A vehicle anti-theft system, comprising: display means for displaying image data received by the receiving means. The storage control means stores the image data generated by the imaging means and the storage means when it is determined that there is no free area in the storage means for storing the image data generated by the imaging means. The vehicle antitheft system according to claim 1 or 2 , wherein the image data is selected by deleting the least important image data among the image data being displayed. The vehicle theft prevention system according to any one of claims 1 to 3 , wherein the storage control unit stores the image data in the storage unit with a resolution corresponding to the importance level. The vehicle according to any one of claims 1 to 4, wherein the suspicious person judging means judges the presence of the suspicious person by analyzing the image data generated by the photographing means. Anti-theft system. The importance level determining unit determines the level of importance of image data based on an area of a suspicious person's face included in a captured image represented by the image data generated by the imaging unit. The antitheft system for vehicles according to any one of claims 1 to 5 . The vehicle antitheft system according to claim 6 , wherein the importance level determination unit determines that a specific color portion in the photographed image is a suspicious person's face. The vehicle antitheft system according to claim 6 , wherein the importance level determination unit determines a face of a suspicious person by performing face recognition processing based on a captured image. The importance degree determination means, from claim 1, characterized in that to determine the importance of the image data based on the size of the contrast of the photographic image represented by the image data generated by the imaging means to the claim 5 The antitheft system for vehicles of any one of Claims. The stored data transmission means transmits the image data stored in the storage means together with the importance to the management device,
The display means, one of the preceding claims, characterized in that display to be viewable from the highest importance photographic image represented by the image data received by the receiving means to claim 9 1 The antitheft system for vehicles as described in the item. The management device
Communication means for communicating with an external communication device capable of displaying the image data received by the receiving means;
A communication control unit that selects image data having a high degree of importance from the image data received by the reception unit, and causes the communication unit to perform processing for transmitting the selected image data to the communication device;
The vehicle antitheft system according to any one of claims 1 to 10 , characterized by comprising:

Images