Stropná IP kamera: Hikvision DS-2CD2346G2-I (4 MP, 2,8 mm, 0,003 lx, IR do 30 m, WDR, H.265, AcuSense)

Hikvision Ceiling IP camera DS-2CD2T86G2-2I belongs to the second generation of cameras with the AcuSense technology, notable for even more effective filtering out of false alarms. The device is dedicated for use in CCTV systems based on IP DVRs/NVRs. The camera is fitted with an 4 MP 1/3" CMOS sensor and an IR illuminator with a range up to 30 m to ensure proper visibility in low-light conditions. It has a fixed 2.8 mm lens with a viewing angle of 103°. Support for the legacy and latest H.265(+) compression methods allows for the archiving time of recordings to be extended while maintaining excellent image quality and backward compatibility. Additional functions to help improve image quality including: AGC, 3D-DNR, WDR (120 dB), BLC, HLC and built-in image analytic functions (VCA) make the camera suitable for use in even more advanced projects. The IP67 rated housing protects the inside electronic components from adverse weather conditions. The camera can be powered conventionally with 12 VDC or through PoE (compliant with the 802.802.3af standard).

The camera belongs to the EasyIP 4.0 series, which includes models equipped with two key technologies: AcuSense (first and second generation) or ColorVu. AcuSense cameras rely on Deep Learning algorithms to classify targets as human or vehicle and use intelligent VCA features, allowing to detect motion (second generation, traditional algorithm), intrusion, line crossing, entering and leaving. Thanks to precise recognition features, the system is able to filter out up to 90% (and even more for second-generation devices) false alarm triggers (e.g. animals, raindrops, spider webs, swaying leaves), which considerably boosts alarm accuracy and effectiveness and reduces related costs. On the other hand, ColorVu cameras, which work in color mode under all conditions, are able to detect all the important details of the scene. Using an AcuSense NVR allows to tap the full potential of the Easy IP 4.0 series. Combining cameras that do not support AcuSense technology (e.g. ColorVu) with AcuSense devices makes it possible to filter out false alarms, classify and search for events in terms of shape (human, vehicle). Below, you can compare the possibilities of combining solutions offered in different series.

The camera implements several video compression methods, H.265+, H.265, H.264+, H.264, MJPEG. Compared with H.264, H.265 can reduce the data stream by half, which translates into proportional disk space savings and extended data retention time. H.265+ and H.264+ are Hikvision standards based on the original systems and optimized for CCTV applications. They further minimize the streams in typical video surveillance scenarios. With the advanced video compression algorithms, the camera can be used in IP CCTV systems based on modern NVRs implementing the H.265 standard (the DS-76/77/96NI-I/K series supports H.265+, H.265, H.264+, H.264). Of course, the camera can also operate with older models that support H.264 (the DS-76/77NI-E series supports H.264+, H.264).

With the support of ANR (Automatic Network Replenishment), each IP camera equipped with a memory card can record video even in the absence of network connection. Once the network connection is restored, the image is automatically synchronized with that recorded on the NVR. This ensures a continuous coverage of events, even in the event of communication problems between the camera and the DVR.

iVMS-4200 is a client software dedicated for the management of Hikvision systems such as NVRs (IP, TurboHD), video intercoms, access control, decoders, etc. The software makes it easy and convenient to control all the systems, providing a live view from IP cameras, remote playback, remote configuration, alarm event support, two-way audio transmission, e-maps, HDD recording, and many other functions. The app allows to manage up to 256 devices and stream footage from 64 cameras on up to 4 monitors.

Various applications intended for the installers and operators/users of video surveillance systems based on Hikvision devices are described in this article.

SADP (Search Active Device Protocol) is a free, easy-to-use utility designed to search for Hikvision IP cameras and DVRs/NVRs in the local network. The network device search tool can also be used to modify device network parameters, e.g. to change or recover default passwords. Detailed information on the software and its use can be found in the following article: SADP application - LAN tool for organizing CCTV systems based on Hikvision devices.