IPfocus - IP UserGroup

IPfocusIntelligence and high-definitionsafeguard the World ExpoHikvision creates a high-level securitysolution for China PavilionWorld Expo Shanghai, another global event held inChina following the Beijing Olympics, was a sixmonthtrade fair which attracted over 73 millionvisitors from May to October. As one of the corepavilions in the expo, management at the ChinaPavilion looked for a compreahensive securitysolution, featuring high-definition (HD) imagequality and intelligent video involving analytics.Hikvision, the leading supplier of digital videosurveillance products, created a comprehensiveintelligent video surveillance system includinghybrid DVRs with video analytics features, HDcameras and speed domes as well as videomanagement software to safeguard the ChinaPavilion.ChallengesThe China Pavilion security team wanted to preventillegal intrusions. They requested an intelligentperimeter monitoring solution with PTZ cameraswhich can effectively detect and track intruderswho enter restricted areas. The solution allows theclient to detect unusual behaviour/events and alsoanalyze them retrospectively.Camera status checks include loss of video input,cable disconnection, damage to cameras or shifting,precautions that contribute to ensuring continuousmonitoring of the China Pavilion and surroundingareas.Video preview and playback, storage, logmanagement, PTZ control and e-map functionalitywere also required in this video surveillance system.Video Analytics and RetrievalDue to the large scale of the China Pavilion, thesecurity team set up more than 100 videosurveillance points to cover all areas. Among these,numerous hybrid DVRs with video analysisalgorithms have been deployed for motion trackingand object classification.The hybrids DVRs feature intelligent behavioralanalysis for event detection, with scenariosincluding object entry and exit, appearance,loitering and suspicious objects. Alert areas andtime specifications can be designated as well.Hikvision videomanagementsoftware was alsodeployed in thissystem. Thesoftware supportsa variety of videoinputs as well asoffering reliablestorage andemergency responses. The software runs on adedicated server to oversee analytics and eventtriggeredalarms. Once an alarm is triggered, highdefinitionsnapshots of intrusion events can beproduced by the HD cameras, and an alarm logincluding time and location of the event, is updated.Users can click onto events in the alarm log to viewrelated footage. All events are logged for easyreview, with multiple download formats for databackup.Post-event analysis can be conducted as well.Should an unusual event such as loitering, objectleft behind, graffiti spraying and illegal parking takeplace, the related video footage can be retrievedalong with the time and date of the event forreference. Users can also define different periods oftime to retrieve video footage as required.Wide Coverage with Specific DetailsIn wide area surveillance, it is difficult for camerasto acquire both wide view images and specifictarget object details at the same time. This projecthad to balance these two to identify people andobjects. Hikvision achieved this balance by usingthe leader-follower solution with HD cameras andspeed domes in the perimeters of China Pavilion.Hikvision set up a fixed camera as the “lead” unitfor monitoring large areas, accompanied by a highspeedPTZ dome as a subsidiary “follower”. If the“lead” camera detected events such as loitering orentry into designated zones, the video feed wouldbe automatically transferred to the hybrid DVR foranalysis and the alarm would be triggered. The DVRwould lock the objects and send an order to drivethe subsidiary PTZ dome to track and zoom in fordetails. This solution can help management acquirewide coverage without losing the image detailswhich can be crucial for police officers to use asleads in investigation.Additionally, most standard definition camerasrecord at resolution of CIF or 4CIF which goes up to704x576. However, this is not always enough tomonitor large areas. In order to acquire high imagequality, Hikvision HD cameras were deployed in thesystem for wide-range monitoring. With resolutionof 1.4-megapixel (1360x1024), image clarity and videoquality were enhanced, improvements whichenabled the hybrid DVRs to conduct behavioranalysis more accurately.Achieving High Security LevelsWith products ranging from HD cameras, HD PTZdomes, hybrid DVRs and intelligent videosurveillance analysis servers, Hikvision establisheda rigorous and comprehensive video surveillancesolution to secure the China Pavilion. Given theprestigious nature of the location this became anotable project with some of the highest securitylevels currently used in China or worldwide.“Hikvision’s intelligent, high-definition solution notonly improved security levels at the China Pavilion,but also allow improved visitor experiences at theWorld Expo,” said Polo Cai, Vice President ofHikvision.30_issue 30