JP2020188305A - Intruder monitoring system - Google Patents

Abstract

To send video data to a server in a short time from a point of time when a sensor detects an intruder to quickly and accurately monitor an entry and exit of the intruder.SOLUTION: An intruder monitoring system includes a sensor 11 for detecting entry and exit of an intruder in a monitoring area, a camera 12 for imaging an intruder in the monitoring area based on a detection output of the sensor 11, a control unit 13 for receiving video data output from the camera 12, and a server 14 for receiving video data transmitted from the control unit 13. The camera 12 is configured to transmit video data to the control unit 13 by streaming. The control unit 13 is configured to transmit the video data to the server 14 in a state of being divided into a plurality of files.SELECTED DRAWING: Figure 3

Description

The present invention relates to an intruder monitoring system that monitors the entry and exit of intruders, for example, in parking lots, warehouses, material storage areas for construction work, and the like.

In recent years, theft at material storage areas during construction work has increased. To prevent this type of theft, security guards are assigned to patrol the material storage area on a regular basis.

However, arranging security guards in the material storage area is expensive due to labor costs, and there is a risk that the lives of security guards may be endangered.

Therefore, there is a demand for a crime prevention system that can unmannedly monitor the entry and exit of intruders at the material storage area without the need for security guards. An intruder management device has been proposed earlier as one of the security systems of this type (see, for example, Patent Document 1).

The main part of the intruder management device disclosed in Patent Document 1 includes a sensor, an illuminator, a video camera, a timer circuit, and a recording device.

The sensor detects intruders entering and exiting the detection area. The illuminator illuminates the detection area when the sensor detects an intruder at night. The video camera captures an intruder in the detection area when the sensor detects the intruder. The timer circuit sets the shooting by the video camera to a predetermined time. The recording device records the captured moving image.

In this intruder management device, when an intruder who has entered or exited the detection area is detected by a sensor, the illuminator is turned on at night. In this way, only when the intruder is detected by the sensor, the intruder is photographed for a predetermined time with the video camera. The recorded video is recorded in the recording device only within a predetermined time from the time when the intruder is detected.

Japanese Unexamined Patent Publication No. 2001-346194

By the way, by using the intruder management device disclosed in Patent Document 1, the presence or absence of intruders entering and exiting with a monitor installed in a monitoring room such as a manager's room far away from the intruder management device. Can be monitored.

In this case, the intruder management device installed in the material storage area and the server installed in the monitoring room are connected via the Internet or the like via a mobile phone line.

When transmitting the video data recorded by the intruder management device to the server in the monitoring room, the video data is usually transmitted to the server by streaming. In that case, it takes time to establish streaming communication via a low-speed line.

Therefore, the time from the time when the intruder is detected by the sensor to the start of streaming the video data, that is, the time required for the intruder management device to prepare for the video transmission becomes long, and the transmission of the video data is delayed.

As a result, the time when the moving image is displayed on the monitor in the monitoring room is after a long time has passed since the intruder entered and exited. As a result, it becomes difficult to quickly and accurately monitor the entry and exit of intruders.

Also, if the recording time is set long by the intruder management device, if the video data is recorded in one file and then sent to the server, the file cannot be sent until then because the recording time has elapsed. .. Therefore, the elapsed time from the entry and exit of the intruder becomes longer, and it becomes more difficult to quickly and accurately monitor the entry and exit of the intruder.

In this way, if the elapsed time from the intruder entering and exiting becomes long, the intruder may destroy the device during that time. When recording video data to a file, it is difficult to use the video data as evidence because the video data file is not completed before the device is destroyed.

Therefore, the present invention has been proposed in view of the above-mentioned problems, and an object of the present invention is to transmit moving image data to a server in a short time from the time when an intruder is detected by a sensor, so that the intruder can enter and exit quickly. The purpose is to provide an intruder monitoring system that can be accurately monitored.

The intruder monitoring system according to the present invention includes a sensor that detects the entry and exit of an intruder in the monitoring area, a camera that captures an intruder in the monitoring area based on the detection output of the sensor, and moving image data output from the camera. A control unit that receives the data by wire and a server that wirelessly receives the moving image data transmitted from the control unit.

As a technical means for achieving the above-mentioned object, the camera in the present invention is configured to transmit moving image data to a control unit by streaming, and the control unit in the present invention divides the moving image data into a plurality of files. It is characterized in that it is configured to send to the server in the state.

In the intruder monitoring system of the present invention, when an intruder enters or exits the monitoring area, the sensor detects the entry or exit of the intruder in the monitoring area. Based on the detection output of the sensor, the intruder in the monitoring area is photographed with a camera.

Then, the moving image data captured by the camera is transmitted to the control unit by wire. Further, the moving image data received by the control unit is wirelessly transmitted to the server.

Here, when the moving image data is transmitted from the camera to the control unit, the moving image data is transmitted by streaming. Since the camera and the control unit are connected by wire, even if the video data is transmitted by streaming, the transmission / reception of the video data is not delayed.

On the other hand, when the moving image data is transmitted from the control unit to the server, the moving image data is divided into a plurality of files and transmitted. Since the control unit and the server are wirelessly connected, if the video data is transmitted as a split file, the transmission / reception of the video data will not be delayed.

It is desirable that the server in the present invention is configured to combine a plurality of divided files transmitted from the control unit into one file.

If such a configuration is adopted, by combining a plurality of divided files into one file, it is possible to restore the moving image data consisting of the divided files transmitted from the control unit to the server.

In the present invention, it is desirable that the control unit and the server are composed of a mobile phone line connecting the control unit and the mobile phone base station and an internet line connecting the mobile phone base station and the server.

If such a configuration is adopted, it becomes easy to transmit the moving image data from the control unit to the server as a plurality of divided files by using the mobile phone line and the Internet line.

According to the present invention, even if the control unit and the server are wirelessly connected, when the video data is transmitted from the control unit to the server, the video data is divided into a plurality of files and transmitted to the server. There is no delay in sending and receiving video data.

As a result, the video data can be instantly received by the server from the time when the intruder entering or exiting the monitoring area is detected by the sensor. As a result, the entry and exit of intruders can be monitored quickly and accurately, and a highly reliable monitoring system can be realized.

It is a block diagram which shows the schematic structure of the intruder monitoring system in embodiment of this invention. It is a block diagram which shows the installation example of the intruder monitoring system of FIG. It is a flow chart which shows the operation example of the intruder monitoring system of FIG. It is a flow chart which shows the other operation example of the intruder monitoring system of FIG.

An embodiment of the intruder monitoring system according to the present invention will be described in detail below with reference to the drawings.

The intruder monitoring system is installed in the material storage area for construction work and monitors the entry and exit of intruders. In this embodiment, a material storage place at a construction site is illustrated, but it can also be installed in a parking lot, a warehouse, or the like. Here, the intruder means a suspicious person, a suspicious vehicle, or the like.

Further, as another embodiment, it can be installed in a field, an orchard, or the like, and can be used for measures against theft of agricultural products, measures against damage to birds and animals, and measures against illegal dumping. In this case, the intruder means a suspicious person, a suspicious vehicle, a beast such as a bear or a monkey, or a small animal such as a bird.

As shown in FIG. 1, the main part of this intruder monitoring system is a sensor 11, an illuminator 15, a camera 12 (for example, an IP camera), a control unit 13, and a server 14 (see FIG. 3). It is configured.

In this embodiment, the sensor 11 and the illuminator 15 are integrated (see FIG. 2), but the sensor 11 and the illuminator 15 may be separate bodies. The sensor 11 detects the entry and exit of an intruder in the monitoring area in the material storage area, and the illuminator 15 illuminates the monitoring area at night.

The camera 12 photographs an intruder in the monitoring area based on the detection output of the sensor 11. The control unit 13 receives the moving image data output from the camera 12 by wire. The server 14 wirelessly receives the moving image data transmitted from the control unit 13.

A monitoring device is composed of a sensor 11, an illuminator 15, a camera 12, and a control unit 13. As shown in FIG. 2, this monitoring device is attached to a pole 16 erected near the monitoring area by a mounting bracket. The monitoring area can be set at a plurality of locations such as near the entrance of the material storage area and near the material.

The sensor 11 can detect the entry and exit of an intruder in the monitoring area, and the illuminator 15 is attached to a position where the monitoring area can be illuminated. Further, the camera 12 is attached to a position in the monitoring area where an intruder can be photographed.

By connecting the control unit 13 to which the sensor 11, the illuminator 15 and the camera 12 are connected to the power supply 17 (for example, AC100V), power can be supplied to the sensor 11, the illuminator 15, the camera 12 and the control unit 13. ..

When it is difficult to secure the power supply 17 at a site in the mountains or the like, the power supply can be supplied by connecting the solar panel 18 and the storage battery 19 to the control unit 13 via the charge / discharge controller 20.

In this way, by providing the independent power supply 21 composed of the solar panel 18, the storage battery 19, and the charge / discharge controller 20, the monitoring device can be installed even in a place where the power supply 17 cannot be secured, such as in a mountainous site. , Versatility is improved.

An operation example of the intruder monitoring system having the above configuration will be described in detail with reference to FIG.

As shown in FIG. 3, between the control unit 13 and the server 14, a mobile phone line connecting the control unit 13 and the mobile phone base station 22 and the mobile phone base station 22 and the server 14 are connected via a router 23. It consists of an internet line to connect. The server 14 is provided with a storage 24.

When an intruder enters or exits the monitoring area, the sensor 11 detects the entry or exit of the intruder in the monitoring area. At night, the sensor 11 detects the entry and exit of an intruder, and at the same time, the monitoring area is illuminated by the illuminator 15. By intimidating an intruder with this lighting, it exerts a theft deterrent effect.

Based on the detection output of the sensor 11, an intruder in the monitoring area is photographed by the camera 12. The appearance of the suspicious person and the license plate of the suspicious vehicle can be identified by the shooting by the camera 12.

A moving image request signal is output from the control unit 13 to the camera 12 based on the detection output of the sensor 11. Based on this moving image request signal, the camera 12 transmits the captured moving image data to the control unit 13 by wire after the moving image transmission preparation period A (for example, 1 second or less) has passed from the time of sensor detection.

Since the video transmission preparation period A is set to a short time of 1 second or less, for example, even if the suspicious vehicle is running, the suspicious vehicle is photographed by the camera 12 from the time when the sensor is detected until the suspicious vehicle passes by. Video data can be sent.

Video data is transmitted by streaming from the camera 12 to the control unit 13 (see B in FIG. 3). Transmission of this moving image data is started before the illuminator 15 is turned on.

Since the camera 12 and the control unit 13 are connected by wire, the communication between them is high speed, and even if the video data is streamed from the camera 12 to the control unit 13, the transmission / reception of the video data is delayed. There is no. That is, in the camera 12, the time from the time when the sensor is detected until the moving image transmission preparation period A is completed does not become long.

The control unit 13 receives the video data transmitted from the camera 12 by streaming after the recording preparation period C (for example, 1 second or less) from the time of sensor detection, and at the same time wirelessly transmits the video data to the server 14. To do.

Here, if the moving image data is transmitted from the control unit 13 to the server 14 by streaming, the recording preparation period C becomes longer from the time when the sensor is detected, which is not preferable because the transmission / reception of the moving image data is delayed.

Therefore, the moving image data received by streaming from the camera 12 is divided into a plurality of files by time (for example, every 5 seconds) from the control unit 13 to the server 14, and the divided files are sequentially transmitted as soon as they are completed. (See D in FIG. 3).

Since the control unit 13 and the server 14 are wirelessly connected, the communication between them is slow, but since the divided file starts to be transmitted before the streaming from the camera 12 is completed, the divided file is transmitted. Unlike streaming, it does not take a long time to establish communication, and transmission and reception of video data is not delayed.

In this way, since the divided file is completed at an early stage and the transmission of the divided file can be started, the time from the sensor detection time to the completion of the recording preparation period C becomes longer in the control unit 13. There is no.

The control unit 13 and the server 14 are composed of a mobile phone line 26 that connects the control unit 13 and the mobile phone base station 22, and an internet line 27 that connects the mobile phone base station 22 and the server 14.

In this way, by using the mobile phone line 26 and the Internet line 27, it becomes easy to transmit the moving image data from the control unit 13 to the server 14 as a plurality of divided files.

In addition to transmitting the moving image data in a plurality of divided files, the control unit 13 also transmits various information such as the ID of the monitoring device and the detection time by the sensor 11 to the server 14 in order to identify the monitoring devices installed at a plurality of locations. I try to do it.

The server 14 receives the divided file of the moving image data after the file reception preparation period E from the time of sensor detection (see F in FIG. 3). After receiving this divided file, a plurality of (for example, 12) divided files (every 5 seconds) are combined into one file (1 minute).

By combining the divided files into one file in this way, it is possible to restore the moving image data transmitted from the camera 12 to the control unit 13. The moving image data is stored in the storage 24 of the server 14.

When the server 14 receives the moving image data as a divided file from the control unit 13, the server 14 notifies the observer such as the site manager by e-mail 25 via the Internet line 27. Based on the notification of this e-mail 25, the observer may notify the police that an intruder has entered or exited.

The notification of this e-mail 25 is that when the monitoring device is installed in two places, near the entrance of the material storage area and near the material, after receiving the divided file of the video data near the entrance, the divided file of the video data near the material is sent. It is set to execute when it is received.

In this way, by using video data from two installation locations in the same material storage area, it is possible to reduce false alarms in email notifications compared to using video data from only one installation location. it can.

In the intruder monitoring system of the embodiment described above, even if the control unit 13 and the server 14 are connected by the mobile phone line 26 and the Internet line 27, the moving image data received by streaming from the camera 12 is converted into a plurality of files. As soon as the divided files are divided and each divided file is completed, the control unit 13 sequentially transmits the divided files to the server 14, so that the transmission / reception of the moving image data is not delayed.

As a result, the server 14 can instantly receive the moving image data from the time when the intruder entering and exiting the monitoring area is detected by the sensor 11. As a result, the entry and exit of intruders can be monitored quickly and accurately, and a highly reliable intruder monitoring system can be realized.

Further, a monitoring device including the sensor 11, the illuminator 15, the camera 12, and the control unit 13 can be realized with a relatively inexpensive device configuration. By setting the shooting time of the camera 12 to a short time (for example, up to 1 minute from the time of sensor detection), the amount of data transmitted to the server 14 and the communication charge can be reduced as compared with other 24-hour monitoring systems. Power consumption can also be suppressed.

Since the power consumption of the monitoring device can be suppressed in this way, the monitoring device can be operated by the independent power supply 21 including the solar panel 18, the storage battery 19, and the charge / discharge controller 20.

Here, as shown in FIG. 4, even if an intruder destroys the monitoring device including the sensor 11, the illuminator 15, the camera 12, and the control unit 13, the moving image data is transmitted and received as a divided file, so that from the time of sensor detection. The moving image data can be received by the server 14 in an instant.

That is, in the process of combining the divided files and restoring the moving image data, if at least one divided file is received by the server 14, the divided files are combined and the moving image data before the destruction of the monitoring device is used. It can be restored.

As a result, since the video data before the destruction of the monitoring device remains, the intruder cannot destroy the evidence by destroying the device.

The present invention is not limited to the above-described embodiments, and it is needless to say that the present invention can be carried out in various forms without departing from the gist of the present invention. Indicated by the scope of the claim and further includes the equal meaning described in the claims, and all modifications within the scope.

11 Sensor 12 Camera 13 Control unit 14 Server 22 Mobile phone base station 26 Mobile phone line 27 Internet line

Claims (3)

A sensor that detects the entry and exit of an intruder in the monitoring area, a camera that shoots an intruder in the monitoring area based on the detection output of the sensor, and a control unit that receives moving image data output from the camera. A server for receiving the moving image data transmitted from the control unit is provided.
The camera is configured to transmit the moving image data to the control unit by streaming, and the control unit is configured to transmit the moving image data to the server in a state of being divided into a plurality of files. An intruder monitoring system that features. The intruder monitoring system according to claim 1, wherein the server is configured to combine a plurality of divided files transmitted from the control unit into one file. According to claim 1 or 2, the control unit and the server are composed of a mobile phone line connecting the control unit and the mobile phone base station and an internet line connecting the mobile phone base station and the server. The intruder monitoring system described.

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