Monitoring camera system, video recording apparatus and video recording method

摘要

A video recording method includes: detecting an intrusion of a person into a predetermined monitoring area based on the video information from the monitoring camera; recording the intrusion time when the intrusion of the person into the monitoring area is detected; detecting a left-behind object after the person has passed through the monitoring area based on the video information from the monitoring camera; generating alarm information in response to the detection of the left-behind object; overwriting so as to record the video information by every given amount of information until the alarm information is received. The method further includes receiving and recording, of the video information recorded in the first video recording step, video information from the intrusion time of the person to a time corresponding to the alarm information in accordance with the intrusion time of the person in a case in which the alarm information is generated.

主权项

1. A monitoring camera system comprising;
a monitoring camera; and a video recording apparatus configured to record video information received from the monitoring camera, wherein the monitoring camera comprises:
an imager;a person detector configured to detect an intrusion of a person into a predetermined monitoring area based on video information obtained by the imager;a time recorder configured to, when the intrusion of the person into the monitoring area is detected by the person detector, record an intrusion time;an object detector configured to detect a left-behind object after the person has passed through the monitoring area based on the video information obtained by the imager;an alarm information generator configured to generate alarm information in response to the detection of the left-behind object by the object detector; anda transmitter configured to transmit the video information obtained by the imager, the alarm information generated in case of the alarm information generated by the information generator, and the intrusion time of the person recorded by the time recorder, and wherein the video recording apparatus comprises:
a receptor configured to receive the video information, the alarm information, and the intrusion time of the person transmitted from the transmitter of the monitoring camera;a first video recorder configured to overwrite so as to record the video information received by the receptor by every fixed amount of information, the overwriting comprising recording over a part of the video information with another part of the video information;a second video recorder configured to receive and record video information recorded in the first video recorder; anda controller configured to receive from the receptor the intrusion time of the person and a time corresponding to the alarm information and configured to transfer particular video information to the second video recorder, wherein the particular video information is within a time period having a start time and an end time respectively based upon the intrusion time and the time corresponding to the alarm information.