(I) Background and Challenges
In the past ten years, the construction of safe cities around the world has been in full swing, the number of sites has increased sharply, and the data has exploded, which has brought severe technical challenges and difficulties to the application of public security business:
The video recorded by a large number of surveillance probes every day is an unstructured data. The data is meaningless until it is received and understood by the human brain in the form of moving images. Therefore, for many years, the application of public security for video surveillance systems has remained At the stage of manual verification, in the face of huge amounts of image data, manual investigation is like searching for a needle in a haystack, which is time-consuming, labor-intensive, inefficient, and costly. In the retrospection of public security cases involving a large amount of manpower, they often hear “see dizziness” and “see vomit "So helpless and sighed.
In order to solve this problem that has plagued the industry for many years, Pilot Guards has launched the city-wide Smart monitoring solution of "smart front-end, smart storage, and smart application", and has taken the lead in applying it in the construction of multiple safe cities.
(B) what is smart monitoring
Figure 1: System schematic
The smart surveillance system embeds a variety of intelligent recognition algorithms in ordinary surveillance cameras, and installs a "smart brain" on the probe, which realizes the innovation of the "smart" technology of the surveillance system without adding any additional costs:
Smart cameras can automatically detect abnormal situations (such as: crossing the border, entering / leaving areas, area invasion, hovering, personnel focus, fast movement, illegal parking, items left / taken, etc.), and can transmit alarm information to the Smart platform to achieve Active video prevention and control.
Search for structured data
Smart camera can automatically recognize the license plate, and can store the extracted license plate number, license plate color and other structured information into the Smart platform, to achieve intelligent feature search, accurately locate specific targets, and at the same time carry out vehicle blacklist removal and control.
Watch condensed video
Smart cameras can automatically perform dynamic and static separation, and can store the intelligent and multiple information analyzed in real time directly into the smart storage device to achieve intelligent retrieval, concentrated playback, and summary playback of the video, which greatly improves the viewing efficiency of the video.
(Three) core products
Full support for 1 feature recognition (recognition of license plate captures), 5 smart detections (face detection, image out-of-focus, scene change, no sound source input, sudden screaming events), and 10 behavior analysis (cross-boundary, entry / Leaving area, area invasion, wandering, personnel focus, fast movement, illegal parking, leaving / retrieving items) and other intelligent value-added functions.
Adopting storage products based on video streaming direct writing technology that is closer to security applications, realizing intelligent access, intelligent storage, intelligent playback, and intelligent management of front-end Smart cameras. At the same time, it has video recording protection mechanisms such as ANR network disconnection supplementary recording technology, surveillance-grade hard disk RAID technology, video lock technology, and N + 1 hot backup technology to ensure the integrity and security of video.
Based on cloud computing technology and video big data processing technology, a central monitoring platform is built to guide the needs of public security business applications and provide intelligent monitoring applications close to the actual needs of public security.
(IV) User value
1) Improved case resolution efficiency
From the traditional video review, manual verification, to the intelligent search application centered on license plate search and feature search, and the intelligent viewing application centered on concentrated playback and video summary, the clue investigation efficiency is increased by 20-100 times when the case is solved.
2) Improved command efficiency
Through the smart monitoring network that is densely distributed throughout the city, vehicles can be intelligently deployed and controlled, actively discover blacklisted vehicles, and report to the police in a timely manner, truly achieving "one-point deployment and tracking throughout the city", which can greatly improve the implementation of public security missions. Command efficiency.
3) Improved prevention and control efficiency
It can analyze in real time, automatically detect abnormal situations such as focus, wandering, illegal parking, and prompt alarms. It promotes the qualitative leap of active video prevention and control after the surveillance business model is engaged, and improves the efficiency of urban public security prevention and control.
Smart surveillance is a new surveillance concept that will fundamentally change the current mode of public security video business application, comprehensively improve the ability and efficiency of public security organs in investigating and solving cases, command and dispatch, and public security prevention and control, and bring a new generation of safe cities. Profound change.