Abstract: With the rapid development of digital technology and the upgrading of global security systems, including China’s “Safe City”, the functions and positioning of security systems themselves have undergone significant changes, which in turn have affected the product definition and functional design of system units from front-end image sensors to back-end processing algorithms. Traditionally, visual systems have either been used as a record to support the prosecution of a crime, or as a reminder to on-site security guards or police officers who are not present at the scene for an intrusion or destruction. Although this helps to catch the perpetrator, it does not change the fact that an event has already occurred. The time interval between the occurrence of an accident and the intervention of security personnel may be significant,
With the rapid development of digital technology and the upgrading of global security systems, including China’s “Safe City”, the functions and positioning of security systems themselves have undergone significant changes, which in turn have affected the product definition and functional design of system units from front-end image sensors to back-end processing algorithms. Traditionally, visual systems have either been used as a record to support the prosecution of a crime, or as a reminder to on-site security guards or police officers who are not present at the scene for an intrusion or destruction. Although this helps to catch the perpetrator, it does not change the fact that an event has already occurred.
The time interval between the occurrence of an accident and the intervention of security personnel may be significant. In fact, as one of the largest police forces in the UK, the West Midlands Police Department recently announced that its response time for high priority calls is 30 to 60 minutes. Can the increasingly advanced digital security technology change this situation and become a preventive and deterrent to crime?
The answer is yes. With the progress of image quality, computer processing ability, Internet connection speed and video analysis algorithm, today’s video monitoring technology has begun to support remote systems that can detect a possible event and implement blocking at the first scene when an intrusion occurs. Global manufacturers, including front-end cameras and back-end professional systems, are developing corresponding technologies and products.
Pebble Group, a security vision system manufacturer in the Netherlands, is developing one of the first products of this type of system. This Breda based company has created a system under the brand “Crime Buster”, which is an active security system installed outside buildings or communities. It combines Sony FCB-EX985E/P, a high-resolution, wide-angle camera that can be used in low light conditions, with integrated infrared lighting and integrated audio for remote intervention.
Implement remote system blocking at the first scene
By using a fixed installed camera and Pebble’s proprietary algorithm on the output image, events can be automatically detected. After detecting a possible intrusion event, the system will alert operators in the remote control room who have undergone intervention or tension relief training. Both video and audio streams are transmitted through IP networks.
Pascal Broers, Business Development Manager of Pebble Group, said, “We use fixed cameras as initial monitoring to eliminate the possibility of crime hidden in blind spots of mobile cameras. At the same time, we use a mobile version of a crime killer system connected to fixed cameras through an IP link as a remote security system. The entire system follows our DVRI process of discovery, verification, and remote intervention.”