JP2000092473A - Video monitor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video monitor device for a place, where it is difficult to monitor video because of protection of privacy. SOLUTION: A recording means 3 is provided with a delay part 3a which records, delays, and outputs video of a monitored object from a camera 1 as an image-pickup means and a recording part 3b which starts recording the video from the delay part 3a on a recording medium once receiving a recording start indication. A decision means 4 is provided, which decides whether or not the monitored object is abnormal according to the signal from a sensor 2 detecting the movement, etc., of the monitored object and instructs the recording part 3b to start recording if an abnormality is recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video surveillance apparatus for recording, in a recording means, a video to be monitored taken by an imaging means.

[0002]

2. Description of the Related Art Conventionally, a video surveillance device for recording and storing a video of a person who is inside and a person who goes in and out has been introduced in a counter of a bank, a corner of a cash dispenser, a convenience store, and a pachinko parlor.

A typical video monitoring apparatus uses a time-lapse VTR (video tape recorder) as recording means. In this video surveillance device, for example, recording is performed for 12 hours a day for a total of 84 hours a week using one magnetic recording tape. The tape on which the monitoring video for one week is recorded is stored for three months, and in the case of an incident or the like, if it is within three months, the on-site video can be analyzed from the date and time of occurrence. As described above, in the introduction examples of these banks and the like, when a case or the like occurs, the video is analyzed to identify the culprit.

[0004] In a shopping district or a shopping mall,
It introduces a video surveillance device and declares safety as a feature.

[0005]

On the other hand, on the street corners of residential areas and the like, there are few examples of introducing video surveillance devices into such places from the viewpoint of protecting the privacy of the person being photographed.

[0006] In addition, in a house, it is impossible to peep in with a camera, especially for privacy protection. However, falling or becoming immobilized in a solitary house or hospital room is life-threatening, so in order to respond to such an emergency, it is important to detect the condition quickly and understand the process that led to it. It is.

An object of the present invention is to provide a video surveillance device in a place where video monitoring is difficult from the viewpoint of privacy protection.

[0008]

In the video monitoring apparatus of the present invention, the recording means includes a delay unit for recording the video to be monitored from the imaging unit and outputting the delayed video, and a delay unit for receiving a recording start instruction. A recording unit for starting recording of an image from a recording medium on a recording medium, and determining a monitoring target abnormality based on a signal from a sensor, and providing a determination unit for instructing the recording unit to start recording when the abnormality is determined. It is.

According to the present invention, it is possible to obtain a video surveillance apparatus which records and saves a monitoring video from an earlier time when an abnormality occurs and does not record a monitoring video not related to the abnormality.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A video surveillance device according to a first aspect of the present invention records an image of a monitoring target, a sensor for detecting the monitoring target, and a video of the monitoring target captured by the imaging unit. A video monitoring device provided with a recording unit that performs recording, wherein the recording unit includes a delay unit that records a video to be monitored from the imaging unit and outputs the video with a delay, and a delay unit that receives a recording start instruction from the delay unit. A recording unit for starting recording of the image on a recording medium, determining an abnormality of a monitoring target based on a signal from the sensor, and providing a determination unit for instructing the recording unit to start recording when the abnormality is determined. This is a monitoring device that records and saves monitoring video on a recording medium from the time earlier when an abnormality occurs, and does not record monitoring video that is not related to the abnormality on the recording medium, thereby ensuring privacy related to video monitoring. It is possible to achieve both the video surveillance in problems and abnormal Mamoru.

According to a second aspect of the present invention, in the video surveillance apparatus, the determination means determines that the abnormality is abnormal when a signal from the sensor is not continuously input for a predetermined time T1 or more, and starts recording in the recording unit. 2. The video monitoring apparatus according to claim 1, wherein the monitoring video is recorded from an earlier time when an abnormality occurs even if a signal from the sensor is not continuously input for a predetermined time T1 or more. It can be recorded and stored on a medium.

According to a third aspect of the present invention, in the video surveillance apparatus, when the signal from the sensor is not continuously input for more than the predetermined time T1, it is determined that the abnormality has occurred, and the recording unit starts recording. 2. The video monitoring apparatus according to claim 1, wherein the video monitoring apparatus is configured to instruct the video monitoring apparatus so that a delay time of the delay unit is set to a time T2 longer than the predetermined time T1. .

According to a fourth aspect of the present invention, in the video monitoring apparatus, the delay unit is configured to constantly record the video to be monitored from the imaging unit, and the determination unit is configured to determine whether the signal from the sensor is detected for a predetermined time T1. The video monitoring device according to claim 2 or 3, wherein the video monitoring device is configured to determine that the video is normal if it is input within this time, and to instruct to delete the video recorded in the delay unit before the input time and before the delay time T2. Therefore, it is possible to appropriately delete the monitoring video not related to the abnormality from the monitoring video recorded in the delay unit.

According to a fifth aspect of the present invention, in the video surveillance device, the recording means records the video from the imaging means in the delay section while transmitting the video input before the delay time from the recording time to the delay section. When erasing and receiving a recording start instruction, the video recorded in the delay unit is recorded on a recording medium by the recording unit, and then a new video is overwritten and recorded on the delay unit, and the video recorded in the delay unit is recorded. 4. The video monitoring apparatus according to claim 2, wherein the video is continuously recorded on a medium, and the video input before the delay time from the current time when the recording instruction is received is deleted from the delay unit. As a result, it is possible to prevent a monitoring video that is not related at the time of abnormality from being output to the recording unit.

According to a sixth aspect of the present invention, there is provided an image monitoring apparatus, comprising: an imaging unit for imaging a monitoring target; a recording unit for recording a video of the monitoring target captured by the imaging unit; And an instruction inputting means for inputting a command, and wherein the recording means is a video surveillance device configured to, upon receiving an erasure instruction from the instruction inputting means, erase a monitoring video recorded before receiving the erasure instruction. If the user inputs a delete instruction of the recorded surveillance video according to the will of the surveillance subject, the recorded surveillance video can be erased, and the privacy protection problem related to the video surveillance and the video surveillance in an emergency can be compatible. .

According to a seventh aspect of the present invention, there is provided a video surveillance apparatus, comprising: an imaging unit for imaging a monitoring target; a recording unit for recording a video of the monitoring target captured by the imaging unit; Instruction input means for inputting
When an erasure instruction is received from the instruction input means, the erasure is determined from validity determination data for determining whether or not the recorded monitoring video is erasable, and if it is determined that erasure is possible, an erasing section of the monitoring video to be erased is determined. The video monitoring apparatus is provided with a recording data management unit that instructs the recording unit to delete the erasure section of the monitoring video, and that does not instruct the recording unit to delete the monitoring video when it is determined that erasure is impossible. When the user inputs an instruction to delete the recorded surveillance video according to the will of the subject, the recorded surveillance video will be emergency
This makes it possible to delete a monitoring video which is not related to the video surveillance, so that the problem of privacy protection related to the video monitoring and the video monitoring in an emergency can be compatible.

[0018] In a video surveillance apparatus according to an eighth aspect of the present invention, a plurality of imaging means are provided, the recording means is configured to record the video from the plurality of imaging means, and the instruction input means is provided with a plurality of monitoring targets. The recording data management means is configured to input an instruction to delete the recorded monitoring video of a specific monitoring target, and the recording data management means is configured to calculate the recorded monitoring video to be deleted when receiving an erasing instruction from the instruction input means. An image monitoring apparatus according to claim 7, wherein when an instruction to delete the recorded surveillance video is input according to the will of the person to be monitored, a surveillance video that is not related to an emergency (abnormal) among the recorded surveillance video is input. It can be erased, so that the problem of privacy protection related to video surveillance and video surveillance in an emergency can be compatible.

According to a ninth aspect of the present invention, there is provided an image monitoring apparatus, comprising: an imaging unit for imaging a monitoring target; a recording unit for recording a video of the monitoring target captured by the imaging unit; Instruction input means for inputting an instruction for erasure,
When a recording instruction is received from the instruction input unit, the recording unit instructs the recording unit to record a video to be monitored, and when an erasing instruction is received from the instruction input unit, it is effective to determine whether to erase the recorded monitoring video. It is determined whether or not erasure is possible from the sex determination data. If it is determined that erasure is possible, an erasing section of the monitoring video to be erased is determined, and the erasing section of the monitoring video is instructed to the recording means. Is a video monitoring device provided with a recording data management means that does not instruct the recording means, to protect yourself when passing through a lonely street corner or dark night road, etc. If there is no abnormality as a result, it is possible to voluntarily erase the image that you are in, and monitor the image while protecting privacy. , It can be both safety and privacy protection.

According to a tenth aspect of the present invention, in the video surveillance apparatus, the instruction input means is configured to input an instruction for recording or erasing an image to be monitored and identification information for identifying the instructor. 10. The video monitoring device according to claim 9, wherein the recording data management means is configured to determine that the recorded monitoring target video is erasable when the identification information at the time of recording matches the identification information at the time of erasing. In addition, it is possible to prevent the recording from being canceled by another person, and to avoid erroneously erasing a monitoring video intended for another person.

An image monitoring apparatus according to an eleventh aspect of the present invention includes: an imaging unit that captures an image of a monitoring target; a recording unit that records a video of the monitoring target captured by the imaging unit; a recording instruction and an encryption key. A video monitoring apparatus comprising: a command receiving unit for receiving; and a recording data management unit for instructing the recording unit to encrypt and record a video to be monitored based on an encryption key from the command receiving unit. Since the video is encrypted and recorded with the encryption key known only to the person being monitored, the decrypted regular video cannot be viewed unless this encryption key is passed, so both long-term storage of the monitoring video and privacy protection can be achieved. can do.

Hereinafter, a video monitoring apparatus according to the present invention will be described based on specific embodiments. (Embodiment 1) In an image monitoring apparatus according to Embodiment 1 of the present invention, as shown in FIG. 1, an image of a monitoring target from a camera 1 as an image pickup means is recorded in a recording means 3 and delayed output. Delay section 3a, and a delay section 3a when a recording start instruction is received.
And a recording unit 3b for starting recording of an image from the recording medium on a recording medium, and determining an abnormality of the monitoring target based on a signal from the sensor 2 for detecting a movement or the like of the monitoring target. A determination means 4 for instructing start is provided.

As shown in FIG. 1, the sensor 2 is configured to detect a movement of a monitoring target or the like and output sensor data. The recording means 3 includes, for example, a video tape recorder (hereinafter abbreviated as VTR), and records sensor data such as a video signal from the camera 1 and a sound from the sensor 2.

Here, a case where this video monitoring device is used for monitoring a hospital room will be described. For example, the camera 1 captures an image of a bed in a hospital room, and the sensor 2 detects movement of a person in the patient room. As shown in FIG.
Are input to and recorded in the delay unit 3a of the recording unit 3 in the order of, for example, the video A to the video B and the video C. The input video is the delay time of the delay unit 3a. It is output to the recording unit 3b with a delay of T2 (40 minutes). Specifically, at the time when the image C is input to the delay unit 3a, the image A is output from the delay unit 3a.

If a person walks or enters or leaves the room, the sensor 2 detects the movement. As shown in FIG. 1, the signal from the sensor 2 is input to the judging means 4. If the sensor 2 does not detect the movement of the monitoring target, the signal is not output from the sensor 2 and the judging means 4
As shown in FIG. 3, when the signal from the sensor 2 is not continuously input for a predetermined time T1 (30 minutes) or longer, it is determined that an abnormality has occurred.
b is configured to output a signal instructing the start of recording.

Specifically, the sensor 2 detects the times t1, t
At 2, t3, the movement of the monitoring target is detected and the sensor output is output to the determination means 4. From time t1 to time t
2 or the time from time t2 to time t3
Since the time is shorter than the predetermined time T1, the determination means 4 determines that it is normal and does not output a signal instructing the start of recording to the recording unit 3b. However, at time (t3 + T1), since the predetermined time T1 (30 minutes) has elapsed since time t3 and there has been no response from the sensor 2, the determination means 4 determines that there is an abnormality and records at this time (t3 + T1). The instruction is output to the recording unit 3b of the recording unit 3. As described above, when the recording instruction from the determining unit 4 is input to the recording unit 3b of the recording unit 3, as shown in FIG. 1, the recording unit 3b starts the image output from the delay unit 3a from the time when the recording instruction is received. And recording of the sensor data is started. As shown in FIG. 2, the image A output from the delay unit 3a before the recording instruction is received is not stored in the recording medium by the recording unit 3b, and the images B and C subsequent to the image A are recorded in the recording unit 3b. Is stored in the recording medium.

That is, at the time when the recording instruction is received, the delay section 3a outputs the past video for the delay time T2, and the recording of the video is started. Recording is performed retroactively by the delay time T2.

With this configuration, if there is no response from the sensor 2 continuously for more than a predetermined time T1 (30 minutes) from the last response from the sensor 2, it is determined that there is an abnormality, and a recording instruction is sent to the recording unit 2a. The monitoring video can be recorded and stored on the recording medium from the time before the delay time T2 (40 minutes) from the time of receiving the recording instruction and receiving the recording instruction. By not recording the monitoring video that is not related to the abnormality on the recording medium, it is possible to achieve both the privacy protection problem related to the video monitoring and the video monitoring at the time of the abnormality.

More specifically, since the image in the sickroom 40 minutes before the time when the recording start instruction is received is recorded on the recording medium by the recording unit 3b, 10 minutes from the time of the last movement. The patient's condition in the sickroom from a minute before can be understood, and if the patient is unable to move due to abnormalities, etc., the patient can be observed retrospectively and appropriate treatment can be performed. If there is a response from the sensor 2, the image related to privacy is deleted from the delay unit 3a with the lapse of time and is not recorded on the recording medium of the recording unit 3b, so that both privacy protection and emergency response can be achieved. Can be.

FIG. 4 shows a video monitoring apparatus according to the first embodiment.
In the case where the notifying means 5 shown in (1) is added, if the determining means 4 determines that there is an abnormality, the sensor 2 outputs a predetermined time T1 (30 minutes).
Can be notified to hospital staff working at a nurse station as a third party that there is no reaction for a long time.

In the first embodiment, when the signal from the sensor 2 is not continuously input for a predetermined time T1 or more, the determination unit 4 determines that the abnormality is abnormal, and determines that the recording unit 3 of the recording unit 3 is abnormal.
b is instructed to start recording.
The same effect can be obtained even when a signal indicating an abnormality is received from the controller and the recording unit 3b of the recording unit 3 is instructed to start recording.

In the first embodiment, the delay unit 3a records the input monitoring video and outputs it to the recording unit 3b in the order of input. However, as shown in FIG. Is deleted from the delay unit 3a, the video input before the delay time T2 from the current time when the recording instruction is received is deleted from the delay unit 3a and is not output to the recording unit 3b. With this configuration, it is possible to prevent a monitoring video that is not related at the time of abnormality from being output to the recording unit 3b.

In the first embodiment, the delay section 3a records the input monitoring video and outputs it to the recording section 3b in the order of input, but the delay section 3a always outputs the monitoring target video from the camera 1. When the signal from the sensor 2 is input within the predetermined time T1, it is determined that the signal is normal, and the image recorded on the delay unit 3a before the delay time T2 from the input time is determined. In the case where the deletion instruction is provided, the monitoring video not related to the abnormality can be appropriately deleted from the monitoring video recorded in the delay unit 3a.

(Embodiment 2) As shown in FIG. 6, a video surveillance apparatus according to Embodiment 2 of the present invention includes a camera 1 serving as an image pickup means for picking up an image of a monitoring target, and a monitoring target picked up by the camera 1. Recording means 6 for recording an image of the recorded surveillance video, and an instruction input means 7 for inputting an erasure instruction for the recorded monitoring video. When the recording means 6 receives an erasure instruction from the instruction input means 7, the erasure instruction is received. The monitoring video recorded up to this point is deleted.

The recording means 6 is for recording the monitoring video from the camera 1 or erasing the recorded monitoring video in accordance with an external instruction, and includes, for example, a VTR. The instruction input means 7 is for inputting an erasure instruction for the recorded monitoring video, and includes, for example, a remote control, a switch, an instruction means for inputting sound and the like.

Here, a case will be described in which this video monitoring device is used specifically for monitoring a hospital room. The image of the camera 1 taken in the hospital room is recorded by the recording means 6. When a patient who is curing in this room wants to protect privacy and wants to delete the recorded monitoring video, bedside or the like as instruction input means 7 for instructing to delete the recorded monitoring video. Is pressed, the recording means 6 detects that the switch is pressed, and continues recording the video from the camera 1;
The video recorded up to the time when the switch is pressed is deleted.

With this configuration, the monitored person is always recorded. However, the recorded monitoring video can be deleted by the monitoring person's deletion instruction. In other words, the video can be erased according to the will of the monitored person, and the privacy protection problem related to the video monitoring and the video monitoring in an emergency can be compatible.

(Embodiment 3) As shown in FIG. 7, a video surveillance apparatus according to Embodiment 3 of the present invention includes cameras 1a to 1d as image pickup means for picking up an image of an object to be monitored.
a recording means 8 for recording the video of the monitoring target captured in a to 1d; an instruction input means 7 for inputting an erasure instruction for the recorded monitoring video; Is determined from the validity determination data for determining the erasability of the erasure, and if it is determined that erasure is possible, an erasing section of the monitoring video to be erased is determined, and the erasing section of the monitoring video is instructed to the recording means 8, A recording data management unit 9 which does not instruct the recording unit 8 to delete the monitoring video when it is determined that erasure is impossible is provided.

The recording means 8 records the monitoring images from the cameras 1a to 1d while sequentially switching them, and erases the recorded monitoring images according to an instruction from the outside, and includes, for example, a VTR. The instruction input means 7 is for inputting an erasure instruction for individually erasing the monitoring video captured and recorded from the plurality of cameras 1a to 1d, and includes, for example, a remote controller, a switch, and an instruction means for inputting sound or the like.

The recorded data management means 9 includes validity determination data for determining whether or not the recorded monitoring video can be deleted,
Erasing section setting data for determining an erasing section of the monitoring video to be deleted is set.

Here, a case where this video monitoring device is used for monitoring a hospital room will be described. As shown in FIG. 7, each of patients on four beds in a hospital room has four cameras 1.
The monitoring is shared among a to 1d. Each camera 1a-1d
Are recorded by the recording means 8 while being sequentially switched. An instruction input means 7 for instructing to erase a recorded monitoring video when a patient to be monitored who is being cured in this hospital room wants to protect privacy and wants to erase the recorded monitoring video. When a switch installed on the side of a bed or the like is pressed, the record data management means 9 detects that the switch is pressed.

The recording data management means 9 determines which camera of the four cameras 1a to 1d to delete the monitoring video based on the erasing instruction from the switch, and records the recorded video from the identified camera. The erasure is determined from the validity determination data for determining whether the monitoring video can be erased. Specifically, validity determination data for determining whether or not erasure is possible for a related item in the condition group shown in FIG. 8 is set for each patient to be monitored. The erasure is determined from the determination data. For example, in the case of a patient with an attendant, erasing is set, or the time is 10:
From 00 to 11:00, erasure is set to be impossible.

Further, when it is determined that the erasure is possible, the recording data management means 9 determines an erasure section of the monitoring video to be erased. Specifically, the erasing section of the monitoring video to be deleted is determined based on the erasing section determination condition as shown in FIG. For example, in FIG. 9A, 40 minutes as the maximum value is determined as an erasing section. In FIG. 9B, 5 minutes is determined as an erasing section. The recording data management unit 9 instructs the recording unit 8 to delete the erasure section of the monitoring video, and continues recording of the video output from the four cameras 1a to 1d, while monitoring the specified recorded monitoring. Erase the video erasure section. If it is determined that the monitoring image cannot be deleted, the recording means 8 is not instructed to delete the monitoring video.

The validity judgment data set in the record data management means 9 may include data for which the switch is not pressed based on the intention of protecting privacy depending on the patient when an erasure is instructed, or data which is more important than privacy. In consideration of such a condition that is important, it is possible to set a flag indicating that erasure is not possible, set a priority order for an erasure instruction, and the like.

With this configuration, the monitoring target is always recorded. However, when the monitoring target inputs a deletion instruction of the recorded monitoring video, an emergency (in the case of abnormality) among the recorded monitoring video is input. This makes it possible to delete a monitoring video which is not related to the video surveillance, so that the problem of privacy protection related to the video monitoring and the video monitoring in an emergency can be compatible.

(Embodiment 4) As shown in FIG. 10, a video surveillance apparatus according to Embodiment 4 of the present invention includes cameras 1a to 1d as imaging means for imaging an object to be monitored and cameras 1a to 1d. A recording unit 10 for recording a captured image of the monitored object, an instruction input unit for inputting an instruction for recording and erasing of the monitored image, and a recording of the monitored image when receiving a recording instruction from the instruction input unit. When an instruction is given to the recording means 10 and an erasure instruction is received from the instruction input means, erasure is determined from validity determination data for determining whether erasure of the recorded monitoring video is possible. An erasing section of the monitoring image is determined, and the recording means 10 instructs the recording means 10 to delete the erasing section of the monitoring image. If it is determined that erasing is impossible, the recording data management means 11 does not instruct the recording means 10 to erase the monitoring image. It is those provided.

The recording means 10 is for recording the monitoring video from the cameras 1a to 1d and erasing the recorded monitoring video in response to an external instruction, for example, a VTR. The instruction input means 7 includes a command receiving means 12a for receiving a recording instruction from the plurality of cameras 1a to 1d for instructing the start of recording of a monitoring video, and a command receiving means 12b for receiving an erasing instruction for erasing the recorded monitoring video. For example, there are a remote controller, a switch, and an instruction unit by inputting sound or the like.

Here, a specific description will be given of a case where the video monitoring apparatus monitors a pedestrian who is a monitored object passing through a side road shown in FIG. On the side road from the intersection A to the intersection B, the four cameras 1a to 1d capture images of the side road, and the command receiving means 12a, 1
2b is installed at point C and point D, respectively.

A pedestrian enters a narrow side road from intersection A on a high-traffic high-traffic road. The pedestrian can use the command receiving means 12 installed at the point C using the dedicated remote control.
A is instructed to start monitoring recording. This recording instruction by the pedestrian is sent to the recording data management means 11.
The recording data management unit 11 instructs the recording unit 10 to record the monitoring video captured by the cameras 1a to 1d.
At night or the like, a light-on instruction is given at the same time. When the pedestrian reaches the intersection B through the side road that was being monitored, the command receiving means 12 installed at the point D
In response to b, the pedestrian himself issues an erasure instruction to erase the record so far. This erasure instruction is sent to the command receiving means 1
2b is sent to the recording data management means 11. The recorded data management means 11 determines whether or not erasure is possible from the validity determination data, and when it is determined that erasure is possible, instructs the recording means 10 to stop recording and delete the monitoring video recorded this time. In accordance with the erasure instruction from the recording data management means 11, the recording means 10 erases the monitoring video for the pedestrian this time.

With this configuration, video monitoring can be performed while protecting privacy, so that the vehicle can pass through lonely street corners, dark night roads, and the like with confidence.
In the fourth embodiment, the pedestrian sends a command to delete as a command. However, the monitoring device may automatically delete after the pedestrian passes. The fact of the passage can be utilized by image processing or the like in the monitoring video.

In the above description, the instruction to the video monitoring apparatus has been described using a dedicated remote controller as an example. However, the instruction may be given by a push button switch, an IC card that emits radio waves, or the like.

In the fourth embodiment, the record data management means 11 does not manage information for identifying a pedestrian, and does not describe processing when a plurality of people pass at the same time. An instruction for recording or erasing a video to be monitored is input together with identification information for identifying the instructor, and the recorded data management unit 11 is configured to match the identification information at the time of recording with the identification information at the time of erasure. Then, in a case where it is configured to determine that the recorded video of the monitoring target is erasable, the monitoring target issues a recording instruction or an erasing instruction together with information for identifying the user, and the recording data management unit 11 uses the identification information. This will prevent others from canceling the record,
Erroneous erasure of surveillance video intended for another person can be avoided. For example, in the case where the first person is already monitoring and recording, and the next person instructs to monitor, two persons are photographed at the same time. Even in such a case, since the person to be monitored is identified, it is possible to delete only the video in which only the first person is shown in response to the deletion command of the first person, and avoid erroneous deletion. it can.

(Embodiment 5) As shown in FIG. 12, a video surveillance apparatus according to Embodiment 5 of the present invention includes cameras 1a to 1d as imaging means for imaging an object to be monitored and cameras 1a to 1d. Recording means 13 for recording the captured video of the monitoring target, command receiving means 14 for receiving the recording instruction and the encryption key, and encrypting and recording the video of the monitoring target based on the encryption key from the command receiving means 14. And a recording data management means 15 for instructing the recording means 13 as described above.

As shown in FIG. 12, the recording means 13 encrypts and records the input video data as the video to be monitored based on the encryption key from the command receiving means 14. is there. The command receiving means 14 receives a recording instruction and an encryption key.

In the recording means of the above-described first to fourth embodiments, basically, video and sensor data are recorded as they are without processing, but the recording means 1 of the fifth embodiment is used.
In FIG. 3, as shown in FIG. 12, an encryption unit 13a is provided, and the encryption unit 13a encrypts the input video using the encryption key received from the recording data management unit 15, and encrypts the encrypted input video. The data is recorded on the recording medium by the recording unit 13b.
Since the recording unit 13b records using the encrypted video data, the recording data cannot be returned to the video except for the one that knows the encryption key.

Here, a case will be described in which this video monitoring device is provided at a street corner shown in FIG. A person entering the side street from the intersection A and wishing to monitor the video while passing through the side street, that is, a person to be monitored, instructs the command receiving means 14 installed at the point C to record. An encryption key is passed along with the recording instruction. The command receiving unit 14 passes the received encryption key and the recording instruction to the recording data management unit 15. The recording unit 13 encrypts the video signals from the cameras 1a to 1d based on the encryption key and records the encrypted video signals in the recording unit 13b. This recording is continued until the monitoring target issues a stop instruction. The recorded video data is stored on a recording medium such as a tape.

With this configuration, the monitoring video is encrypted and recorded and stored in the recording medium. Therefore, the video of the target section cannot be viewed unless only the monitoring target person who instructed the recording gives the encryption key known. Therefore, both long-term storage of surveillance video and privacy protection can be achieved.

For example, in the event that an incident or the like has to be observed and the surveillance video must be viewed, the surveillance target is determined from the identification signal of the surveillance target who instructed the recording, and the surveillance target is first obtained by using the encryption key from the surveillance target. , The scene in which the monitored person is shown can be reproduced.

In each of the above-described embodiments, the recording means is, for example, a VTR. However, the same effect can be obtained even when the recording means is a disk recording device for recording video on a disk.

[0059]

According to the video monitoring apparatus of the present invention, the recording means includes a delay unit for recording the video to be monitored from the imaging means and outputting the video with a delay, and when the recording start instruction is received, the recording unit receives the video signal from the delay unit. A recording unit that starts recording the video on the recording medium,
Determine the abnormality of the monitoring target based on the signal from the sensor,
By providing a determination unit for instructing the recording unit to start recording when it is determined to be abnormal, the monitoring video is recorded and stored on the recording medium from a time earlier when an abnormality occurs, and the monitoring video not related to the abnormality is not recorded on the recording medium. Thereby, it is possible to achieve both the privacy protection problem concerning video monitoring and the video monitoring at the time of abnormality.

Further, there are provided image pickup means for picking up an image of the monitored object, recording means for recording the image of the monitored object picked up by the image pickup means, and instruction input means for inputting an erasure instruction for the recorded monitor image. In the case of a video surveillance device configured to delete the monitoring video recorded before receiving the erasure instruction from the instruction input means, the means for monitoring the recorded monitoring video by the will of the monitoring target person. When an erasure instruction is input, the recorded monitoring video can be deleted, and the privacy protection problem associated with video monitoring and video monitoring in an emergency can be compatible.

[0061] Further, an image pickup means for picking up an image of the monitored object, a recording means for recording the image of the monitored object picked up by the image pickup means, an instruction input means for inputting an instruction to record and delete the image of the monitored object, When the recording instruction is received from the instruction input means, the recording means is instructed to record the video to be monitored, and when the erasing instruction is received from the instruction input means, the validity for determining whether or not the recorded monitoring video is erasable is determined. It is determined whether or not erasure is possible from the determination data, and if it is determined that erasure is possible, an erasing section of the monitoring video to be erased is determined, and the erasing section of the monitoring video is instructed to the recording means. In the case of a video surveillance device provided with a recording data management unit that does not instruct the recording unit, in order to protect yourself when passing through a lonely street corner or a dark night road,
Even for those who are voluntarily subject to video surveillance, if there is no abnormality as a result, they can voluntarily erase the video that they are showing, and can monitor video while protecting privacy Therefore, both security and privacy protection can be achieved.

A command receiving means for receiving a recording instruction and an encryption key, a recording data management means for instructing the recording means to encrypt and record a video to be monitored based on the encryption key from the command receiving means, In the case of a video surveillance device equipped with a video monitor, the video is encrypted and recorded using an encryption key known only to the person being monitored, and the decrypted video cannot be viewed unless the encryption key is passed. Long-term storage and privacy protection.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a video monitoring device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of an operation in a recording unit according to the first embodiment.

FIG. 3 is an explanatory diagram of an operation in a determination unit according to the first embodiment.

FIG. 4 is a block diagram in which a notification unit is provided in the video monitoring device according to the first embodiment;

FIG. 5 is an explanatory diagram of the operation of the recording unit according to the first embodiment.

FIG. 6 is a block diagram illustrating a configuration of a video monitoring device according to a second embodiment of the present invention.

FIG. 7 is a block diagram illustrating a configuration of a video monitoring device according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram of a condition group relating to validity determination data according to the third embodiment.

FIG. 9 is an explanatory diagram of an erasure section determination condition according to the third embodiment.

FIG. 10 is a block diagram illustrating a configuration of a video monitoring device according to a fourth embodiment of the present invention.

FIG. 11 is an explanatory diagram showing a monitoring place according to the fourth embodiment.

FIG. 12 is a block diagram illustrating a configuration of a video monitoring device according to a fifth embodiment of the present invention.

[Explanation of symbols]

 3, 6, 8 recording unit 3a delay unit 3b, 13b recording unit 4 determination unit 5 notification unit 7 instruction input unit 9, 11, recording data management unit 10, 13 recording unit 12a, 12b command reception unit 13a encryption unit 13b recording unit 14 Command receiving means 15 Record data management means

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C054 CH08 CH10 EH00 GD01 GD06 HA18 5C084 AA02 AA08 AA13 BB31 DD11 EE01 EE03 EE04 EE10 GG17 GG18 GG39 GG66

Claims (11)

[Claims] 1. An image monitoring apparatus comprising: an imaging unit for imaging a monitoring target; a sensor for detecting the monitoring target; and a recording unit for recording a video of the monitoring target captured by the imaging unit. The means includes a delay unit that records a video to be monitored from the imaging unit and outputs the video with a delay, and a recording unit that starts recording the video from the delay unit on a recording medium when a recording start instruction is received, An image monitoring apparatus comprising: a determination unit configured to determine abnormality of a monitoring target based on a signal from a sensor, and instruct the recording unit to start recording when the abnormality is determined. 2. The apparatus according to claim 1, wherein the determination means determines that the signal is abnormal when a signal from the sensor is not continuously input for a predetermined time T1 or more, and instructs the recording section to start recording.
The video monitoring device as described in the above. 3. The apparatus according to claim 2, wherein the determining means determines that the signal is abnormal when the signal from the sensor is not continuously input for a predetermined time T1 or more, and instructs the recording unit to start recording. 2. The video monitoring apparatus according to claim 1, wherein the time T2 is longer than the predetermined time T1. 4. The delay unit is configured to constantly record a video to be monitored from the imaging unit, and the determining unit determines that the signal is normal when a signal from the sensor is input within a predetermined time T1, and 4. The video monitoring device according to claim 2, wherein an instruction to delete the video recorded in the delay unit before the delay time T2 from the input time point is issued. 5. The recording device according to claim 1, wherein the recording unit deletes the video input from the delay unit before the recording time and before the delay time while recording the video from the imaging unit in the delay unit and receives a recording start instruction. The video recorded in the recording unit is recorded on the recording medium by the recording unit, and then a new video is overwritten and recorded in the delay unit, and the video recorded in the delay unit is continuously recorded on the recording medium. The video monitoring device according to claim 2 or 3. 6. An image capturing means for capturing an image of a monitoring target, a recording means for recording a video of the monitoring target captured by the image capturing means, and an instruction inputting means for inputting an erasure instruction for the recorded monitoring video, An image monitoring apparatus, wherein, when receiving an erasure instruction from the instruction input means, the means erases the monitoring video recorded until the erasure instruction is received. 7. An image capturing means for capturing an image of a monitoring target, a recording means for recording a video of the monitoring target captured by the image capturing means, an instruction inputting means for inputting a deletion instruction for the recorded monitoring video, and the instruction inputting means When an erasing instruction is received from the server, the erasing permission / non-permission is determined from the validity determination data for determining whether or not the recorded monitoring video is erasable. An image monitoring apparatus comprising: a recording data management unit that instructs the recording unit to delete an erasure section and that does not instruct the recording unit to delete a monitoring image when it is determined that erasure is impossible. 8. A plurality of image pickup means, a recording means for recording images from the plurality of image pickup means, and an instruction input means for erasing a recorded monitor image of a specific monitor object among the plurality of monitor objects. When configured to input an instruction, the recording data management means receives an erasure instruction from the instruction input means,
8. The video monitoring device according to claim 7, wherein the video monitoring device is configured to determine a recorded monitoring video to be deleted. 9. An image capturing means for capturing an image of a monitoring target, a recording means for recording a video of the monitoring target captured by the image capturing means, an instruction inputting means for inputting an instruction to record and delete a video of the monitoring target, When the recording instruction is received from the instruction input means, the recording means is instructed to record the video to be monitored, and when the erasing instruction is received from the instruction input means, the validity for determining whether or not the recorded monitoring video is erasable is determined. It is determined whether or not erasure is possible from the determination data, and if it is determined that erasure is possible, an erasing section of the monitoring video to be erased is determined, and the erasing section of the monitoring video is instructed to the recording means. A video monitoring device provided with a recording data management unit that does not instruct the recording unit. 10. An instruction input means for inputting an instruction for recording or erasing a video to be monitored and identification information for identifying an instructor, wherein the recording data management means comprises: 10. The video monitoring device according to claim 9, wherein when the identification information matches the identification information at the time of erasure, the recorded video to be monitored is determined to be erasable. 11. An image capturing means for capturing an image of a monitoring target, a recording means for recording a video of the monitoring target captured by the image capturing means, a command receiving means for receiving a recording instruction and an encryption key, A video monitoring apparatus comprising: a recording data management unit that instructs the recording unit to encrypt and record a video to be monitored based on an encryption key.