JP2001236580A - Monitoring system for the inside of facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive monitoring system for the inside of facility, which can sufficiently protect the privacy of a monitoring object person and further improves the reliability of a danger report. SOLUTION: Two first human body detecting sensors 1 and 3 are located along a passage A, and a second human body detecting sensor 5 is provided in the side of a ladder B of the first human body detecting sensor 3. An identification detecting sensor 7 is provided continuously to the side of the ladder B of the second human body detecting sensor 5 and a third human body detecting sensor 9 is provided closely to the ladder B. The presence/absence of dangerous action is predicted from the detected results of the respective sensors 1, 3, 5, 7 and 9 with the passage of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention monitors the behavior of a resident in a facility, in particular, a resident in a welfare facility for the aged, and notifies the supervisor when a resident or a monitored person performs dangerous behavior. For in-facility monitoring system.

[0002]

2. Description of the Related Art Many of the residents in the welfare facilities for the elderly have considerably reduced their athletic ability and visual acuity, so that, for example, it is often necessary to avoid using stairs alone. It is highly desirable that the observer knows. In addition, many of the residents are wandering, and it is necessary to take measures to prevent the wanderers from missing. Therefore, it is considered as dangerous behavior that the resident moves alone toward the stairs (dangerous area), enters the warehouse room (restricted area), or tries to leave the facility exit (dangerous area) alone. Therefore, a system or a device that allows the observer to quickly detect such dangerous behavior is required. As a system to monitor the behavior of residents in welfare facilities for the aged, a TV camera is installed at an appropriate place in the facility,
A system in which the observer grasps and monitors the behavior of the resident by the video sent from this TV camera, or carries a radio transmitter to the resident and transmits radio waves by a receiver installed in the facility Receiving radio waves from the machine,
A system is used in which a monitor grasps and monitors a resident's behavior based on a reception report from a receiver.

[0003]

The monitoring system using a television camera can visually check the behavior of the resident, so the monitoring function seems to be the most excellent.
When the observer looks away from the video monitor, the resident may reach a danger zone or the like, and the privacy of the resident may be ignored. There is also a problem that the system becomes very expensive. A system that allows a resident to carry or attach a radio transmitter is a desirable surveillance system from the viewpoint of privacy protection.However, there is a risk that a resident may forget to carry the radio transmitter or remove it. It does not perform a simple monitoring function and is relatively expensive in terms of price. The cheapest surveillance systems include:
It is conceivable to provide a human body detection sensor immediately before a dangerous area or a restricted area or at a position away from the area by an appropriate distance, and to notify a danger to a supervisor when this human body detection sensor detects a human body. When the monitored person moves to the human body detection sensor side after passing through the danger zone, the danger notification to the monitor person is performed, and also when the non-monitored person is detected by the human body detection sensor. Since a danger report is issued, the reliability of the danger report cannot be ensured.

[0004] Therefore, an object of the present invention is to provide an inexpensive in-facility monitoring system which can sufficiently protect the privacy of a person to be monitored and has high reliability of a danger notification.

[0005]

According to the present invention, there is provided an in-facility monitoring system for monitoring the behavior of a person to be monitored in a facility, and monitoring when the monitored person performs dangerous behavior. An in-facility monitoring system for notifying a person, wherein a plurality of first human body detection sensors provided at predetermined intervals along a passage in the facility, a danger zone or a restricted area where the passage is continuous, and Between one human body detection sensor,
A second human body detection sensor provided at an appropriate distance from the dangerous area or the off-limits area, and detection results of the first human body detection sensor and the second human body detection sensor when the second human body detection sensor detects a human body From the time-dependent data (time-series data), for example, whether the first and second human body detection sensors are sequentially detecting the human body at a predetermined time interval or within a predetermined time from the side opposite to the dangerous area or the off-limits area Whether the direction of movement of the person detected by the second human body detection sensor is in the direction of the danger zone or the off-limits area, and whether the person detected by the second human body detection sensor is the monitored person Determining means for determining whether or not the monitoring target person is moving in the danger zone or the restricted area, and a notifying means for notifying the monitoring person when the determining means determines that the monitoring target person is moving in the direction of the dangerous area or the restricted area. Equipment And those are. The system of the present invention is generally a system in which first systems are arranged at intervals of about 2 m to 4 m.
And a second human body detection sensor, a personal computer in which determination means and notification control means (notification means) are incorporated, and notification means controlled by the notification control means. According to the present invention, the temporal data of the detection results of the first human body detection sensor and the second human body detection sensor (usually stored in an appropriate storage means for an appropriate amount of time) is used to determine the person detected by the second human body detection sensor. The moving direction is predicted, and the presence or absence of dangerous behavior is determined with a high probability. For example, when the first human body detection sensors 1 and 3 are sequentially arranged toward the dangerous area, and the second human body detection sensor 5 is arranged closer to the dangerous area than the first human body detection sensor 3 (the second human body detection sensor). Are provided at appropriate intervals from the first human body detection sensor, specifically, the first human body detection sensor on the most dangerous area side), and from the time-dependent data of the detection results of the first and second human body detection sensors, the sensors 1, 3 If it can be verified that the first and the second human body sensors 5 sequentially detect a human body, it can be determined that the person detected by the second human body detection sensor 5 is moving in the danger zone direction. On the other hand, even if the second human body detection sensor 5 detects a human body, if the first human body detection sensor 3 does not detect a human body within a predetermined time before that, for example, the detected person will be in the danger zone direction. You may decide that you have moved from. In the present invention, a plurality of first human body detection sensors are used. Using one first human body detection sensor (for example, only the sensor 3), the first human body detection sensor 3 and the second
It is possible to determine that the moving direction is the dangerous area direction when the human body detection sensor 5 sequentially detects the human body, but if two persons move from the dangerous area direction at a distance, one person When another person approaches the sensor 5 after moving from the sensor 5 to the sensor 3, it is determined that the person is moving in the danger direction. Although the system of the present invention should operate in a passage with relatively few traffic, it is still possible for two people to move back and forth. In the present invention, it is further determined whether or not the person detected by the second human body detection sensor is a monitoring target person. For example, even if the sensors 1, 3, and 5 sequentially detect a human body in a nursing home, if the detected person is a monitor such as a dorm or an elderly child who has visited the home, the notification means should be activated. is not. Therefore, the moving speed of the person detected by the second human body detection sensor is grasped, and it is determined whether or not this moving speed is the moving speed of the monitored person, and it is determined with a high probability whether or not the monitored person is the monitored person. When the time interval from when the first human body detection sensor 1 detects a human body to when the second human body detection sensor 5 detects a human body is within a predetermined monitoring target person's movement time, It can also be configured to determine, or to determine as a monitoring target when the sensors are sequentially detecting a human body at a time interval within the movement time of the monitoring target set in advance between each sensor It can also be configured. In the latter configuration, when three or more first human body detection sensors are used, a configuration may be such that a detected person is determined as a monitoring target even if the condition is not satisfied only between one sensor having a short distance. it can.

The facilities to be monitored are usually large-scale facilities such as nursing homes and schools for the blind, but the present invention can also be applied to dwellings where elderly people live. As the human body detection sensor, a sensor whose detection range is extremely narrow or relatively narrow, such as a human body passage detection infrared sensor, can be used. In the present invention, the monitoring target person reaches the dangerous area or the like by moving the second human body detection sensor relatively far from the dangerous area or the off-limits area, for example, from when the monitor grasps the dangerous behavior to when the person reaches the dangerous area or the like. It is provided at a distance that does not cause the problem.

By the way, when the second human body detecting sensor detects a human body and determines that the behavior is dangerous, for example, if it is possible to notify only the monitoring room to inform the observer of the dangerous behavior, the normal life in the facility is disturbed. It is possible to monitor the behavior of the person to be monitored without the need. Therefore, when the second human body detection sensor detects a dangerous behavior, the notification means first notifies a warning message having no or little urgency or little effect on the surroundings (for example, a report to a monitoring room), and Is urgent or has a strong influence only when there is no confirmation in the monitoring room, for example, for the entire facility, or for the entire floor to which the dangerous area belongs. It is effective to configure so as to issue a notification. Usually, when a monitor confirms an alarm report, the report is stopped.

The system of the present invention makes it possible to discriminate between a monitored person and a non-monitored person by verifying the moving speed of the detected person, thereby enabling more accurate judgment of dangerous behavior. That is, it is assumed that the monitored person has a considerably slower moving speed than the non-monitored person. However, it is better not to activate the notification means when the monitoring target is being guided by a monitor such as a dormitory mother and trying to pass through a dangerous area, or when a monitor is nearby. Therefore, an identification sensor for detecting a monitor near the danger area or the restricted area is provided in the passage, and this identification sensor is provided for a predetermined time zone or a predetermined time zone or a predetermined time, for example, the second human body detection sensor or the third sensor. When a monitoring person is detected within a predetermined time from the detection of the human body by the human body detection sensor, do not activate the notification means (so that the notification is not performed).
It is preferred to configure. As the identification sensor, a sensor that detects a detection target carried by the observer can be used. For example, a sensor that has a relatively wide or wide detection range, such as a receiver that receives radio waves from a radio wave transmitter, can be used. .
In this case, the verification of the moving speed of the detected person is substantially for discriminating the monitored person and the visitor who do not carry the radio wave transmitter.

[0009] It is not unusual for the person to be monitored to return after being detected by the second human body detection sensor before reaching a dangerous area or the like. Therefore, even if the observer rushes to a hazardous area after receiving a warning report or an emergency alert report (normal alert), the monitored person often does not perform any dangerous actions. Emergency alerts may be neglected and not acted quickly. Therefore, especially in areas with high risk (steep stairs, exits, etc.), a third human body detection sensor (at an interval of about 2 m to 4 m with the second human body detection sensor, or at an interval of 5 m or more, Are provided at intervals of about 6 m to 10 m depending on the situation), and when the third human body detection sensor detects a human body, the first, second, and third human body detection sensors are determined to be in a danger zone or a restricted area by the determination means. It is determined whether or not the human body is detected at predetermined time intervals or within a predetermined time sequentially from the opposite side of the area, and the first, second, and third human body detection sensors sequentially determine
When it is determined that the human body is detected at a predetermined time interval or within the predetermined time, the notification unit issues an emergency critical alert notification (critical alert) that can be distinguished at least from the emergency alert notification to the monitor. It is effective to configure it to do so.
In addition, the detection history of the human body detection sensor is usually displayed on a display or a monitor, and is usually recorded so that it can be called up in a timely manner. Then, by verifying the detection history of the third human body detection sensor, the whereabouts of the wanderer can be estimated with a high probability.

[0010]

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

FIG. 1 is a block diagram of a facility monitoring system according to the present invention.

A passage A in the facility where the monitoring system 10 is installed is connected to a steep staircase B (an important danger zone), and along the passage A, two first human body detection sensors 1, 3 (passage sensors).
Is arranged. On the stairs B side of the first human body detection sensor 3, a second human body detection sensor 5 (target sensor: passing sensor) is provided, and on the stairs B side of the second human body detection sensor 5, for example, a radio wave receiver is continuously provided. An identification detection sensor 7 (identification sensor: the detection range is considerably wider than the passage sensor) is provided. Further, a third human body detection sensor 9 (danger zone target sensor: passing sensor) is disposed immediately before the stairs B. Another passage C in the facility has a gentle slope D
(Ordinary danger zone) and two firsts along Aisle C
Human body detection sensors 11 and 13 (passage sensors) are arranged. On the slope D side of the first human body detection sensor 13, the second
Human body detection sensor 15 (target sensor: passing sensor)
On the opposite side of the slope D of the second human body detection sensor 15, an identification detection sensor 17 (identification sensor: a detection range is considerably larger than that of a passage sensor), for example, a radio wave receiver is provided continuously. .

Each sensor 1, 3, 5, 7, 9 and 11, 1
The detection result or output of 3, 15, 17 is output to the relay unit 1
9, 21 and the interface board 2 of the personal computer 23
When the output state changes after polling by the sensor state input unit 27 for 1 second through the sensor memory 5, the data is output to the sensor detection record file 29 and the shared memory 3
Output to 0. Behavior prediction danger determination unit 31 (determination means)
Sequentially reads the sensor detection information in the shared memory 30 and saves the data as time-lapse data.
The presence or absence of dangerous behavior is determined from the detection results of 9 or 11, 13, 15, and 17, and when the dangerous behavior is detected, the danger determination information is output to the warning communication file 32 and the warning issuing unit 33 is output.
(Reporting means) is started.

The warning issuing unit 33 performs a warning / warning process for a supervisor based on the danger determination information output to the warning communication file 32. As a warning, a warning screen is displayed on the display 35 (reporting means), a warning sound from the speaker 39 (reporting means) connected to the personal computer 23 via the audio board 37, and a warning to the monitoring room via the output unit 41. A method of chime notification using an external device (notification means) can be used, and a combination of these methods can also be used. The warning screen and the warning sound include the location and the degree of urgency (the same applies to telephone calls). For example, the warning for the sensor 5 in the passage A is “Stairs B
Attention ", and a warning to the sensor 9 is" stair B danger ". The confirmation of the warning by the monitor is performed by clicking or touching the confirmation button displayed on the display 35. The alarms to be processed by the alarm issuing unit 33 include facilities other than the monitoring room, such as a warning light, a siren report, an emergency chime report (normal warning) or an emergency warning light, an emergency siren report, and an emergency emergency chime report (serious warning). There is a method of using an external device (notifying means) arranged in the above. Further, a telephone notification 45 to a monitoring person via the telephone control board 43 can also be used. Confirmation by the observer of the alarm can be performed by clicking or touching a confirmation button displayed or displayed on the display 35, manually operating a confirmation button or switch provided at an appropriate place in the facility, or a confirmation tone signal from a telephone. This is performed by transmitting a message or operating a remote controller.

On the display 35, a sensor 1 and a sensor 1 are displayed by a sensor detection state display section 47 in accordance with the selection of the monitor.
3, 5, 7, 9, 11, 13, 15, 17, and the current detection status of the other in-facility sensors are displayed together with the in-facility schematic diagram, or the sensor detection progress display unit 49 displays the time of each of the in-facility sensors. The target detection result is displayed, or the detection state of the in-facility sensor at a specific date and time is displayed from the sensor state reproduction display unit 51 together with the in-facility schematic diagram.

FIG. 2 is a flowchart showing an example of the judging operation of the behavior prediction danger judging section 31 of the in-facility monitoring system 10.

The behavior prediction danger determining unit 31 reads information in the shared memory 30 at one-second intervals to create the latest sensor detection result temporal data (step 1) and sequentially reads a determination condition file (not shown). (Step 2). The judgment condition file is the target sensor 5, 9, 1
5, and each determination condition file stores, for example, danger determination conditions determined from the time intervals of temporal detection of the sensors 1, 3, and 5 and the non-detection time zone of the sensor 7. The judgment condition file is for the sensor 9 and the sensor 5
For the sensor 15 and then for the sensor 15. When all the determination condition files have been read and no files remain, the determination operation of the behavior prediction danger determination unit 31 ends (NO in step 3), and waits until the information of the shared memory 30 is read next. In the comparison / judgment, first, the sensors 1, 3, and
It is determined whether or not the detection results of 5, 7, and 9 match the danger determination conditions of the read determination condition file for the sensor 9 (step 4). Is output (step 5), and the alarm issuing unit 33 is activated (step 6). Next, the determination condition file for the sensor 5 is read, and it is determined whether or not the detection results of the sensors 1, 3, 5, and 7 of the same sensor detection result temporal data match the danger determination condition (step 4). If they match, the danger determination information for the sensor 5 is output to the alarm notification file 32 (step 5), and the alarm issuing unit 33 is activated (step 6). Then, the determination condition file for the sensor 15 is read, and it is determined whether or not the detection results of the sensors 11, 13, 15, and 17 of the same sensor detection result temporal data match the danger determination condition (step 4). If so, the danger determination information for the sensor 15 is output to the alarm notification file 32 (step 5), and the alarm issuing unit 33 is activated (step 6). For example, if the detection results of the sensors 1, 3, 5, 7, and 9 of the sensor detection result time-lapse data are as shown in FIG. 3 (the time interval is not set to 1 second for convenience in the figure), the identification sensor 7 is not detected, and the sensors 1, 3, 5, and 9 sequentially detect a human body at predetermined time intervals (determined that the moving speed is slow) (white circles are not detected, black circles are detected), and thus the third human body detection is performed. The person detected by the sensor 9 is a monitoring target person who is not accompanied by the monitoring person, is moving in the direction of the stairs B, and is determined to be near the monitoring person. Here, for example, when the identification detection sensor 7 detects a monitor from time (6) to (10), the person detected by the third human body detection sensor 9 is regarded as, for example, accompanied by the monitor. It is configured to be inconsistent with the danger determination condition.

Here, the target sensor 5, 9 or 1
5 detects a human body, the behavior prediction danger determination unit 31
Makes a judgment, the behavior prediction danger judgment unit 31
When the second or third human body detection sensor detects a human body, based on the time-dependent data of the detection result, determines whether the moving direction of the person detected by the second or third human body detection sensor is the danger zone direction , And whether or not the person detected by the second or third human body detection sensor is the monitoring target person. However, even when the target sensors 5, 9, and 15 do not detect the human body, The comparison itself has been done. Instead of such a configuration, the determination may be made only when the target sensor 5, 9, or 15 detects a human body.

FIG. 4 is a flowchart showing an example of an alarm operation of the alarm issuing unit 33 of the facility monitoring system 10.

Each time the danger determination information is output to the warning notification file 32, the warning issuing unit 33 reads the danger determination information (step 7) and acquires the corresponding warning content from the warning file (not shown) (step 7). Step 8). That is, the warning issuing unit 33 executes a plurality of warning operations in parallel in response to the output of the danger determination information. Then, it is determined whether or not the same alarm content as the acquired alarm content is being issued (step 9). If the same alarm content is not being issued, a warning is issued (step 10). If the content of the alarm is being issued, the alarm operation ends. here,
The warning is displayed on the display 35 and the speaker 39.
Is set to give a warning voice from the user. For example, when warnings to the sensors 9 and 15 are performed simultaneously, respective warning display and confirmation buttons are displayed on the display 35. From 39, the respective warning sounds are continuously output. Next, it is determined whether or not the alarm operation targets the dangerous area target sensor 9 and the alarm content includes a critical alarm (step 11). The alarm operation targets the target sensor 5 or 15 and the alarm content is critical. If no alarm is included, it is determined whether a confirmation signal has been received from the supervisor (step 12). If the alarm content includes a critical alarm, a critical alarm is issued and the alarm operation ends (YES in step 11). When the target sensor 5 or 15 is targeted and a predetermined time elapses without detecting the confirmation signal (YE in step 13).
S) Normally, an alarm is issued (step 14). If a confirmation signal is detected within a predetermined time, the alarm is stopped and the alarm operation ends (step 15). Here, the alarm corresponding to the target sensor 5 is set as an emergency chime notification, the alarm corresponding to the target sensor 15 is set as an alarm lamp lighting and telephone notification, and the alarm corresponding to the target sensor 9 is set as an emergency siren notification and telephone notification. When the telephone call to the sensor 5 and the telephone call to the sensor 9 are simultaneously performed, the alarm sound is continuously output.

It is to be noted that an illumination sensor is attached to the passages A and C (a human body detection sensor having an illumination sensor function may be used in some cases), and the detection progress status and time of this illumination sensor are also used as warning conditions. can do. For example, when the lighting sensor detects the lighting of the light at some time before the human body detection time of the first human body detection sensor 1 at midnight,
The detected person can be configured to determine that the person is moving with normal consciousness, and at least not to issue a critical warning even in the detection progress state as shown in FIG.

[0022]

As described above, the in-facility monitoring system of the present invention has no risk of privacy infringement because it is not a person who monitors by the image of the person to be monitored, and is dangerous by using an inexpensive human body detection sensor. Behavior can be grasped with high probability.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an in-facility monitoring system according to the present invention.

FIG. 2 is a flowchart illustrating an example of a determination operation of a behavior prediction danger determination unit of the in-facility monitoring system.

FIG. 3 is a diagram illustrating an example of a sensor detection process that is a condition of a warning / alarm;

FIG. 4 is a flowchart illustrating an example of an alarm operation of an alarm issuing unit of the in-facility monitoring system.

[Explanation of symbols]

1, 3, 11, 13 First human body detection sensor 5, 15 Second human body detection sensor 9 Third human body detection sensor 10 In-facility monitoring system 31 Behavior prediction danger determining unit (determining unit) 33 Warning issuing unit (notifying unit) A , C aisle B stairs (danger zone) D slope (danger zone)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 9/00 311 H04Q 9/00 311J

Claims (5)

[Claims] An in-facility monitoring system for monitoring the behavior of a monitored person in a facility and notifying the monitored person when the monitored person performs a dangerous action, the system comprising: A plurality of first human body detection sensors provided at predetermined intervals along the way, and the danger zone or the off-limits area where the passages are continuous and the first human body detection sensor, at an appropriate distance from the danger area or the off-limits area The second provided
A human body detection sensor and, when the second human body detection sensor detects a human body, a moving direction of the person detected by the second human body detection sensor based on temporal data of detection results of the first and second human body detection sensors. Is a danger zone or a no-go zone, and whether or not the person detected by the second human body detection sensor is a monitored person. And a notifying means for notifying an observer when it is determined that the user is moving in the direction of a dangerous area or a restricted area. 2. An in-facility monitoring system for monitoring the behavior of a monitored person in a facility and notifying the monitored person when the monitored person performs a dangerous behavior, wherein A plurality of first human body detection sensors provided at predetermined intervals along the way, and the danger zone or the off-limits area where the passages are continuous and the first human body detection sensor, at an appropriate distance from the danger area or the off-limits area The second provided
A human body detection sensor, and when the second human body detection sensor detects a human body, the first and second human body detection sensors are sequentially arranged at predetermined time intervals or within a predetermined time from the side opposite to the dangerous area or the off-limits area. Determining means for determining whether or not a human body is detected, and determining that the first and second human body detection sensors are sequentially detecting the human body at predetermined time intervals or within a predetermined time by the determining means; A monitoring means for notifying a monitoring person when the monitoring is performed. 3. The method according to claim 1, wherein the notifying unit issues a non-emergency warning message for asking the monitoring person for confirmation and an urgent warning message when there is no confirmation for the warning message. The facility monitoring system according to claim 1 or 2, wherein: 4. An identification sensor for detecting an observer near a dangerous area or a restricted area is provided in the passage, and when the identification sensor detects the observer during a predetermined time period, 4. The in-facility monitoring system according to claim 1, wherein the notification means is not operated. 5. A third human body detection sensor is provided immediately before or in the vicinity of the danger area or the off-limits area, and the determination unit is configured to perform the first and second detections when the third human body detection sensor detects a human body. It is determined whether or not the second and third human body detection sensors are sequentially detecting a human body at a predetermined time interval or within a predetermined time from the side opposite to the dangerous area or the off-limits area. When it is determined that the first, second and third human body detection sensors are sequentially detecting a human body at a predetermined time interval or within a predetermined time, an emergency critical alarm report is issued to a monitor, The passage is provided with an identification sensor for detecting a monitoring person near the dangerous area or the restricted area, and when the identification sensor detects the monitoring person in a predetermined time period, the notification unit is not activated. , Characterized by Claims 1 and 2
Or the in-facility monitoring system according to 3.