JP3636980B2 - Automatic occupancy judgment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic occupancy determination apparatus that automatically determines a person's occupancy with a surveillance camera.
[0002]
[Prior art]
In the conventional occupancy monitoring for watching an elderly person living alone, an infrared human sensor is used to detect a person's occupancy and send the detected result to a monitoring center for monitoring.
[0003]
[Problems to be solved by the invention]
In the conventional occupancy monitoring system, an infrared human sensor is used to detect occupancy, so that it can be detected while a person is operating, but cannot be detected when the person is stopped.
Further, it is not configured to detect malfunction of each part of the monitoring system, or to efficiently detect entering / exiting each room, going out of the house, and returning home.
[0004]
The present invention has been made to solve the above-described problems, and a first object of the present invention is to obtain an automatic occupancy determination apparatus that accurately detects the presence of a person.
Another object of the present invention is to obtain an automatic occupancy determination apparatus that can prevent malfunction of each monitoring unit.
A third object is to obtain an automatic occupancy determination apparatus that can efficiently detect entering / exiting of each room, going out of the house, and returning home.
[0005]
[Means for Solving the Problems]
In the occupancy automatic determination device according to the present invention, a monitoring camera arranged to image a room, and detecting the movement of the image of the person imaged by the monitoring camera, the first occupancy of the person is determined. The first processing device has a human existence probability so that the human existence probability is reduced by a certain percentage every time a predetermined time elapses, assuming that a human image motion is detected as 100%. Is calculated, and when the human presence probability falls below the threshold, it is determined that there is no human and the predetermined time is changed according to the time zone .
[0006]
Moreover, the monitoring camera and the first processing device are integrally formed.
In addition, a second processing device is provided that is notified of the determination result of the person's occupancy by the first processing device.
[0007]
In addition, a monitoring camera arranged to image a room, a first processing device for determining a person's occupancy by detecting a motion of a person's image captured by the monitoring camera, and the first A second processing device for notifying a determination result of a person's occupancy by the processing device; a plurality of monitoring cameras and a first processing device are arranged corresponding to the plurality of rooms; The relationship between the two chambers is preset, and the second processing device moves a person within a predetermined period by two first processing devices corresponding to two chambers that are adjacent and not capable of moving a person. Is detected, the malfunction of the surveillance camera or the first processing device arranged corresponding to the two rooms in which the movement of the person is detected is detected.
The setting of the relationship between the two rooms is performed by the matrix matrix of each room, and the matrix matrix is adjacent to the first room by the first value for the two rooms that are adjacent and capable of moving people. A second value is given to two chambers in a relationship where no movement of the person is possible and two chambers in a non-adjacent relationship, and the second processor is given a second value. When a person's movement is detected within a predetermined period in one room, a malfunction of the monitoring camera or the first processing device arranged corresponding to the two rooms where the person's movement is detected is detected. .
[0008]
Furthermore, the entrance / exit area to the room is defined in advance within the field of view of the surveillance camera, and the first processing device determines whether the person enters / exits the room by detecting movement in the entrance / exit area. It is.
In addition, the entrance / exit area of the house is defined in advance in the field of view of the surveillance camera, and the second processing device determines the entrance / exit of a person into the house by detecting the movement in the entrance / exit area. .
[0009]
The entrance / exit area is defined by dividing the display screen of the first processing apparatus corresponding to the visual field of the surveillance camera in advance and selecting the divided screen.
In addition, the entrance / exit area is defined by dividing the display screen of the second processing apparatus corresponding to the visual field of the surveillance camera in advance and selecting the divided screen.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
The first embodiment relates to occupancy determination using a sensor terminal formed integrally with a monitoring camera of the occupancy automatic determination device.
FIG. 1 is a diagram showing a system configuration of an automatic occupancy determination device according to Embodiment 1 of the present invention.
In FIG. 1, reference numeral 1 is a home where an elderly person lives alone, 2 is a surveillance camera arranged in each room of the home 1, for example, an artificial retina camera, CCD camera, CMOS camera, etc. The sensor terminal (first processing device) 4 configured to determine the presence of a person in the room is installed in the home 1 and information including determination results from each sensor terminal 3 is input to the home. A terminal (second processing device) 5 is a dial-up router that is connected to the sensor terminal 3 via a wireless LAN and connected to the home terminal 4 via the LAN 6. A center 7 is connected to the home 1 and monitors the home 1. 8 is a dial-up router installed in the center 7, and 9 is a center terminal connected to the dial-up router 8 via the LAN 10. A telephone line 11 connects the home 1 and the center 7 via the dial-up router 5 and the dial-up router 8.
FIG. 2 is a diagram showing a human presence probability of the automatic occupancy determination device according to Embodiment 1 of the present invention.
[0011]
Next, the operation will be described.
An elderly person living alone in the home 1 is constantly monitored by the surveillance camera 2, and when an abnormality such as the inability to operate occurs, it is detected by the sensor terminal 3 and sent to the home terminal 4 via the dial-up router 5 and the LAN 6. Then, the home terminal 4 is notified to the center terminal 9 via the telephone line 11 and the dial-up router 8 of the center 7. A person rushes to the home 1 from the center 7 that has received the notification and rescues.
The human image from the monitoring camera 2 is processed at the sensor terminal 3, and the home terminal 4 and the center terminal 9 are notified of the processing results. Can keep.
[0012]
Here, the occupancy determination process of the sensor terminal 3 will be described in more detail with reference to FIG.
The sensor terminal 3 detects the movement of the image of the monitoring camera 2 and detects the presence of a person using the concept of the human existence probability. Here, the human presence probability is set to 100% when a person's movement is detected, and the probability is lowered to a constant value every predetermined time. When the human existence probability falls below the threshold, it is determined that there is no person. For example, during the nighttime sleep, the fixed time is taken longer to increase the accuracy. In other words, the inclination when the probability is lowered is moderated to increase the accuracy of the human existence probability. Then, every time human motion is detected, the human existence probability is returned to 100%. By doing so, the presence of a person can be accurately determined.
[0013]
According to the first embodiment, since the occupancy is detected using the human presence probability, the occupancy can be accurately detected, and relief can be performed when there is an abnormality.
[0014]
Embodiment 2. FIG.
In the second embodiment, the movement of a person is detected by taking into account the connection of the rooms, and the malfunction of the presence determination is prevented.
The second embodiment will be described with reference to FIG.
FIG. 3 is a diagram showing the connection of the rooms of the automatic occupancy determination device according to Embodiment 2 of the present invention, FIG. 3 (a) shows a floor plan of the home, and FIG. 3 (b) shows FIG. The connection relationship of the floor plan shown in a) is expressed by a matrix matrix.
In FIG. 3, arrows indicate two chambers that can move in adjacent chambers. The value 1 in the matrix matrix indicates that the two chambers are adjacent to each other and can be moved, and the value 0 indicates that the two chambers are adjacent to each other and not movable. Yes.
[0015]
In the second embodiment, the malfunction of the sensor terminal 3 is detected by the home terminal 4 in consideration of room connection relationships. For example, when motion is detected in two rooms that are adjacent to each other, such as a living room and a Japanese-style room, and in which a person can move, it is determined that the movement has been performed. On the other hand, when movement is detected at the same time in a room that is not connected, such as the entrance and the kitchen, one of them is treated as malfunctioning. Thus, malfunctions can be detected by determining the movement of a person using the connection of rooms.
In addition, by expressing the connection relations of the rooms with a matrix matrix as shown in FIG. 3B, it is possible to express in a form that can be easily processed at the home terminal 4.
[0016]
According to the second embodiment, room connections are defined by a matrix matrix, and a malfunction of a monitoring camera or a sensor terminal is detected using this matrix, so that presence determination can be performed more accurately.
[0017]
Embodiment 3 FIG.
In the third embodiment, the entrance / exit area of a room or house is defined, and the movement in the room or house is determined by detecting the movement here.
The third embodiment will be described with reference to FIG.
FIG. 4 is a view showing the field of view of the surveillance camera of the occupancy automatic determination device according to Embodiment 3 of the present invention.
In FIG. 4, 12 is an interior area of the room in the visual field of the surveillance camera, and 13 is an entrance / exit area set in the visual field of the surveillance camera.
FIG. 5 is a diagram showing an entrance / exit area setting screen of the automatic occupancy determination device according to Embodiment 3 of the present invention, and shows a screen corresponding to the visual field of the surveillance camera.
In FIG. 5, reference numeral 14 denotes an entrance / exit area being set.
FIG. 6 is a flowchart showing the determination of entering / exiting the room of the automatic occupancy determination apparatus according to Embodiment 3 of the present invention.
In the third embodiment, an entrance / exit area 13 is defined in the field of view of the monitoring camera 2, and the entrance / exit to the toilet or bath is determined by the sensor terminal 3 by the movement of a person here.
[0018]
Next, the determination process of the sensor terminal 3 will be described based on the flowchart of FIG.
First, in step S1, the presence / absence of movement in the entrance / exit area 13 is determined. If there is movement, the presence / absence of movement in the internal area 12 is determined in step S2.
If there is a movement in step S2, it is determined in step S3 that it has entered the interior. If there is no movement in step S1 and step S2, the process returns to step S1.
Next, in step S4, the presence / absence of movement in the entrance / exit area 13 is determined. If there is no movement, the presence / absence of movement in the internal area 12 is determined in step S5. If there is no movement in step S5, it is determined in step S6 whether or not a certain time has elapsed. If the certain time has elapsed, it is determined in step S7 that an abnormality has occurred inside.
In step S4, if there is movement in the entrance / exit area 13, it is determined in step S8 whether or not there is movement in the internal area 12. If there is movement, the process returns to step S4. Judge that it came out. If there is a movement in the inner region 12 in step S5, the process returns to step S4. In step S6, if the predetermined time has not elapsed, the process returns to step S4. After it is determined in step S8 that the user has gone outside, the process returns to step S1.
The determination process of the sensor terminal 3 described above determines whether to enter or exit the toilet or bath, and detects the occurrence of an abnormality inside.
[0019]
In addition, in the description of the above-described flowchart, the entrance / exit to the room has been described, but it can be similarly determined for going out and returning home. In such a case, when information on a plurality of surveillance cameras 2 is necessary, the determination process is performed at the home terminal 4.
[0020]
Next, the setting operation using the entrance / exit area setting screen shown in FIG. 5 will be described.
As shown in FIG. 5, the display screen corresponding to the visual field of the surveillance camera is divided into matrix-like areas, and the entrance / exit area is designated and set by a person. In the figure, reference numeral 14 denotes an entrance / exit area being set. By dividing and displaying the screen in this way, the entrance / exit area can be easily set.
This display screen may be displayed by either the display unit of the sensor terminal 3 or the home terminal 4, and information on the entrance / exit area set by either one is shared.
[0021]
According to the third embodiment, the entrance / exit area is set, and the person's movements here can determine whether to go out and go home and enter / exit the toilet or bath, and more accurately detect an abnormal occupancy in the room Can do.
[0022]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
A monitoring camera arranged to image a room, a first processing device for determining a person's occupancy by detecting a motion of a person's image captured by the monitoring camera, and the first processing device Calculates the human existence probability so that the human existence probability is reduced by a certain percentage every time a predetermined time elapses, when the movement of the human image is detected, and the human existence probability falls below the threshold. Since it is determined that there is no person and the predetermined time is changed according to the time zone, it is possible to accurately determine the presence of the person in the room based on the image.
[0023]
Moreover, since the monitoring camera and the first processing device are integrally formed, the presence of a person can be determined by the monitoring camera device.
Furthermore, since the second processing device is provided that is notified of the determination result of the person's occupancy by the first processing device, the second processing device can grasp all the determination results.
[0024]
In addition, a monitoring camera arranged to image a room, a first processing device for determining a person's occupancy by detecting a motion of a person's image captured by the monitoring camera, and the first A second processing device for notifying a determination result of a person's occupancy by the processing device; a plurality of monitoring cameras and a first processing device are arranged corresponding to the plurality of rooms; The relationship between the two chambers is preset, and the second processing device moves a person within a predetermined period by two first processing devices corresponding to two chambers that are adjacent and not capable of moving a person. Is detected, the malfunction of the surveillance camera or the first processing device arranged corresponding to the two rooms in which the movement of the person is detected is detected. it can.
The setting of the relationship between the two rooms is performed by the matrix matrix of each room, and the matrix matrix is adjacent to the first room by the first value for the two rooms that are adjacent and capable of moving people. A second value is given to two chambers in a relationship where no movement of the person is possible and two chambers in a non-adjacent relationship, and the second processor is given a second value. When the movement of a person is detected within a predetermined period in one room, the malfunction of the surveillance camera or the first processing device arranged corresponding to the two rooms where the movement of the person is detected is detected. The relationship between the two chambers can be set in a form suitable for the above.
[0025]
Furthermore, the entrance / exit area to the room is defined in advance in the field of view of the surveillance camera, and the first processing device determines the entrance / exit of the person into the room by detecting the movement in the entrance / exit area. , It can be determined whether people enter or leave the room.
In addition, the entrance / exit area of the house is defined in advance in the field of view of the surveillance camera, and the second processing device detects the movement of the person in the entrance / exit area by detecting movement in the entrance / exit area. Can go out.
[0026]
In addition, since the entrance / exit area is defined by dividing the display screen of the first processing device corresponding to the visual field of the surveillance camera in advance and selecting the divided screen, the entrance / exit area can be easily defined. It can be carried out.
The entrance / exit area is defined by dividing the display screen of the second processing device corresponding to the visual field of the surveillance camera in advance and selecting the divided screen, so the entrance / exit area is easily defined. be able to.
[Brief description of the drawings]
FIG. 1 is a diagram showing a system configuration of an automatic occupancy determination device according to Embodiments 1 to 3 of the present invention.
FIG. 2 is a diagram showing a human existence probability of the automatic occupancy determination device according to Embodiment 1 of the present invention.
FIG. 3 is a diagram showing connection of rooms in an automatic occupancy determination device according to Embodiment 2 of the present invention.
FIG. 4 is a diagram showing a visual field of a surveillance camera of an automatic occupancy determination device according to Embodiment 3 of the present invention.
FIG. 5 is a view showing an entrance / exit area setting screen of an automatic occupancy determination device according to Embodiment 3 of the present invention;
FIG. 6 is a flowchart showing determination of entering / exiting a room by an automatic occupancy determination device according to Embodiment 3 of the present invention;
[Explanation of symbols]
1 home, 2 surveillance cameras, 3 sensor terminals,
4 Home terminal, 5 Dial-up router, 6 LAN,
7 center, 8 dial-up router, 9 center terminal,
10 LAN, 11 telephone line, 12 internal area, 13 gateway area,
14 Entrance / exit area being set.

Claims (9)

Arranged surveillance camera room to image, by detecting the movement of a person in the image captured by the monitoring camera, comprising a first processing unit determines the occupancy of the people, the first processing The apparatus calculates the person existence probability so that the person existence probability is lowered by a certain percentage every time a predetermined time elapses, when the motion of the person's image is detected as 100%. An automatic occupancy determination apparatus characterized by determining that no person is present when a threshold value is reached or less, and changing the predetermined time according to a time zone . Monitoring camera and the first processing apparatus, according to claim 1 Symbol placement of the occupancy automatic determination apparatus, characterized in that it is formed integrally. 3. The automatic occupancy determination device according to claim 1, further comprising a second processing device that notifies a determination result of a person's occupancy by the first processing device. A surveillance camera arranged to image a room, a first processing device for determining a person's occupancy by detecting a motion of a person's image captured by the surveillance camera, and the first processing device A second processing device for notifying the result of determination of the presence of a person by a room, a plurality of monitoring cameras and a first processing device are arranged corresponding to the plurality of rooms, and two of the plurality of chambers are arranged. The relationship between the chambers is set in advance, and the second processing device can move a person within a predetermined period by two first processing devices corresponding to two chambers that are adjacent and not capable of moving a person. when detected, standing chamber automatic determination device you and detecting a malfunction of the human surveillance cameras or motion is arranged corresponding to the two chambers, which are detected in the first processing unit. The relationship between the two rooms is set by the matrix matrix of each room, and the matrix matrix has a first value for the two rooms that are adjacent and capable of moving people, and are adjacent to each other. The second value is given to the two chambers in the relationship that cannot be moved and the two chambers in the non-adjacent relationship. When the movement of a person is detected within a predetermined period in one room, it is possible to detect a malfunction of the monitoring camera or the first processing device arranged corresponding to the two rooms where the movement of the person is detected. The occupancy automatic determination device according to claim 4, wherein: The entrance / exit area to the room is defined in advance in the field of view of the monitoring camera, and the first processing device determines whether the person enters / exits the room by detecting movement in the entrance / exit area. The occupancy automatic determination device according to any one of claims 3 to 5 . The entrance / exit area of the house is defined in advance in the field of view of the surveillance camera, and the second processing device is configured to determine the entrance / exit of a person to the house by detecting movement in the entrance / exit area. The occupancy automatic determination device according to any one of claims 3 to 5 . Entrance area, leave divides the display screen of the first processing device corresponding to the field of view of the monitoring camera in advance, according to claim 6 or claim characterized in that it is defined by selecting the split screen 7. The automatic occupancy determination device according to 7 . Entrance area, leave divides the display screen of the second processing unit corresponding to the visual field of the monitoring camera in advance, according to claim 6 or claim characterized in that it is defined by selecting the split screen 7. The automatic occupancy determination device according to 7 .

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