Monitoring camera system and monitoring method

Patent metadata

Field	Value
Publication number	US-10645288-B2
Application number	US-201816121134-A
Country	US
Kind code	B2
Filing date	Sep 4, 2018
Priority date	Sep 14, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

A first camera sends a first detection notification to a master device when detecting a person in a first imaging area, and starts transmission of a captured video of the first imaging area to the master device by shifting an operation mode from a sleep mode to a standby mode. The master device notifies a camera other than the first camera of a shift instruction to the standby mode in accordance with the first detection notification. The other camera shifts the operation mode from the sleep mode to the standby mode in accordance with the shift instruction to the standby mode, and starts buffering of a captured video of a second imaging area, and when detecting the person in the second imaging area in the standby mode, the other camera sends a second detection notification of the person to the master device, and starts transmission of the captured video of the second imaging area buffered before a first predetermined time period after a point of time at which the person is detected in the second imaging area, to the master device.

First claim

What is claimed is:

1. A monitoring camera system in which a plurality of cameras and a master device which controls an operation mode of each of the cameras are capable of communicating with each other,
wherein a first camera among the plurality of cameras sends a first detection notification of a person to the master device when detecting the person in a first imaging area, and starts transmission of a captured video of the first imaging area to the master device by shifting the operation mode from a sleep mode to a standby mode,
wherein the master device notifies a camera other than the first camera among the plurality of cameras of a shift instruction to the standby mode in accordance with the first detection notification sent from the first camera, and
wherein the other camera shifts the operation mode from the sleep mode to the standby mode in accordance with the shift instruction to the standby mode sent from the master device, and starts buffering of a captured video of a second imaging area, and when detecting the person in the second imaging area in the standby mode, the other camera sends a second detection notification of the person to the master device, and starts transmission of a captured video of the second imaging area including the captured video buffered before a first predetermined time period after a point of time at which the person is detected in the second imaging area, to the master device.

2. The system of claim 1 ,
wherein the first camera includes a first sensor which is capable of detecting the person in the sleep mode, and detects the person in the first imaging area by the first sensor, and
wherein the other camera includes a second sensor which is capable of detecting the person in the sleep mode, and detects the person in the second imaging area by the second sensor.

3. The system of claim 1 ,
wherein the master device starts recording of the captured video of the first imaging area sent from the first camera, in a storage, and
wherein the master device starts recording of the captured video of the second imaging area including the captured video buffered before the first predetermined time period, sent from the other camera, in the storage.

4. The system of claim 3 ,
wherein the first camera transmits a recording stop instruction of the captured video of the first imaging area to the master device in a case where the person is not detected during a second predetermined time period after detecting the person, and
wherein the master device stops the recording of the captured video of the first imaging area in the storage in accordance with the recording stop instruction sent from the first camera.

5. The system of claim 1 ,
wherein the other camera includes a second camera for imaging the second imaging area and a third camera for imaging a third imaging area,
wherein the master device transfers the second detection notification sent from the second camera to the third camera, and
wherein the third camera extends buffering time for buffering a captured video of the third imaging area and continues the buffering in accordance with the second detection notification transferred from the master device.

6. The system of claim 1 ,
wherein the other camera stops the buffering of the captured video of the second imaging area in a case where the person is not detected for a third predetermined time period after starting the buffering.

7. A monitoring method which uses a monitoring camera system in which a plurality of cameras and a master device which controls an operation mode of each of the cameras are capable of communicating with each other,
wherein a first camera among the plurality of cameras sends a first detection notification of a person to the master device when detecting the person in a first imaging area, and starts transmission of a captured video of the first imaging area to the master device by shifting the operation mode from a sleep mode to a standby mode,
wherein the master device notifies a camera other than the first camera among the plurality of cameras of a shift instruction to the standby mode in accordance with the first detection notification sent from the first camera, and
wherein the other camera shifts the operation mode from the sleep mode to the standby mode in accordance with the shift instruction to the standby mode sent from the master device, and starts buffering of a captured video of a second imaging area, and when detecting the person in the second imaging area in the standby mode, the other camera sends a second detection notification of the person to the master device, and starts transmission of the captured video of the second imaging area buffered before a first predetermined time period after a point of time at which the person is detected in the second imaging area, to the master device.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Takahashi Takeshi
• Wakeyama Daisuke
• Machida Takanobu
• Sasaki Yuichi
• Oie Yoko
• Yamaguchi Koji

Classifications

• H04N7/181

  for receiving images from a plurality of remote sources · CPC title

• G08B25/10

  using wireless transmission systems {(G08B25/009 takes precedence)} · CPC title

• H04N7/188

  Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position (signal generation from motion picture films H04N5/253) · CPC title

• G08B13/19656

  Network used to communicate with a camera, e.g. WAN, LAN, Internet · CPC title

• G08B13/19643

  wherein the cameras play different roles, e.g. different resolution, different camera type, different control type · CPC title