Security Surveillance Cameras Top Factory

Network camera Features :

1/2.7″ Hi3518EV200+SC2135 CMOS sensor 2.0mp 1080P@16fps

Package:60pcs/carton (carton size: 59cm×38.5cm×40cm)

Compatible with Hikvision Private Protocol

Smart Low Illumination; Smart ROI(4 ROI region)

Free P2P; ONVIF2.4; BLC; 3D-DNR; DEFOG; DWDR

Support auto IR-CUT filter removal function/ICR

Support: Milestone, NUUO, AXXON, igifort,avigilon

Scenarios：

Apply to roads, warehouses, underground parking and other place which required definition picture quality.

Specification:

Company News:

How To Choose Power Supply For Your CCTV Monitoring Project?

There are three main methods to supply power for security cameras:

1.centralized power supply;

2. Point-to-point power supply;

3. POE ( Power Over Ethernet).

Before you decide to choose them, it is better for you to know about them clearly.

1)Centralized power supply

In this method, the source equipment is centrally installed in the power room, and electric power is supplied to each device after the unified transformation distribution.

For CCTV system, centralized power supply means in a monitoring room or a middle point, using 12V power to supply cameras.

Advantages: 1. Easy to maintain; 2. Better for unified management  and management.

Disadvantages: 1. Preliminary preparation is complex; 2. DC low voltage power supply, it will cause voltage loss if the distance is long; 3. Anti-interference ability is bad during transmission.

2)Point-to-point power supply

In this method, it needs to install DC12V power adapter next to the camera, and power camera separately.

Advantages: 1. low voltage loss of 220V AC during the transmission; 2. Has a great anti – interference performance

Disadvantages: There is a trouble that each point need to be installed a power supply.

3)POE (Power Over Ethernet)

PoE refers to the provision of DC power supply technology for other devices without any changes to the existing Cat.5 Ethernet cabling infrastructure, which is mainly used in high-definition network monitoring systems.

Advantages: 1. lower costs; 2.flexible deployment and convenient installation; 3. single-port maximum power up to 30W.

Disadvantages: 1. Require better quality of network cable; 2. Transmission distance is limited; 3. Equipment power can not exceed 30W.

Some tips:

1.When you use many pieces of infrared camera, it is not recommended to use centralized power supply. Because the current is large when IR LED are working. Centralized power supply is hard to ensure all of IR LED working normally.

2.Using point-to-point power supply, you can save some cost of the cable. But it is no double that after-sales maintenance is a more difficult than centralized power supply.

3. When there are numbers of cameras and power supply distance is less than 100 meters, it is recommended to use PoE power supply. It is more convenient, but pay attention to the quality of power supply equipment and cable.

FAQ: 

1.Can I listen to live and recorded audio remotely?

Yes, some of our Security DVR systems have that option. With an optional audio module, you can listen to live and recorded audio from anywhere through the Internet.

2.What is the characteristic of data transmission in network video surveillance system?

Network video surveillance system data flow is large, high real-time requirements. Generally single 25 frames/sec CIF format image stream size of about 384Kbps; single 25 frames / sec DI format image stream size of 384-1500Kbps, the average stream is 900Kbps, single 25 frames / second 720P format Image stream size of 1500-2500Kbps, the average bit stream for the 2000Kbps; In different industries, the user for the required image real-time, fluency requirements are different, according to the actual situation and specific problems.

3.What is the difference between a network video surveillance system and a traditional video surveillance system?

Traditional closed-circuit monitoring system (including DVR-based regional monitoring system) using video cable or optical fiber transmission analog video signal, the distance is very sensitive, and cross-regional long-distance transmission is not economically convenient (compared to network video surveillance system – network video surveillance), the general area to focus on monitoring, long-distance transmission generally point to point the way the network, the entire system wiring engineering, complex structure, high power consumption, high cost, need more people on duty; The whole system management of the open and intelligent level is low.

Network video surveillance system using a flexible rental (mainly using IP broadband network), multiple users can share a set of central control platform, user input, easy to use, the user can remotely browse and control, in principle, any place to the Internet Can be viewed and controlled. It also introduces many new digital technology achievements (such as image recognition technology), to make up for the lack of traditional video surveillance system, providing value-added services, expand the functionality and scope, improve the system performance and intelligence.

4.What are the current mainstream storage technology?

1)Universal storage, the traditional storage technology is DAS, is the storage device directly connected with the server, completely to

Server-centric, as part of the server. Storage devices for DAS can be tape, disk, disk display, and tape libraries. Typical DAS storage devices are all kinds of disk displays.

The current network storage technology is NAS, SAN, ISCSI. NAS is based on the TCP/IP protocol to provide file storage services; SAN is mainly based on Fiber Channel, data-oriented storage, can be seen as a traditional bus expansion; ISCSI is in the previous two technologies in the TCP / IP network On the convergence of the data block by the SCSI protocol package in the TCP / IP packet in the TCP / IP network transmission technology.

The characteristics of a variety of storage technology analysis and introduction:

The storage area network SANs used to store data has been built on Fiber Channel (FC

Fibre-Clannel technology, this technology provides a high-performance block data access scheme for storage domain applications. Due to the application of IP over LAN and WAN and good technical support, it can realize long-distance block-level storage in IP network, and replace IP channel protocol with IP protocol to form IP-based SAN storage. With low cost, cost-effective, free from distance restrictions, not easy to form information islands and other characteristics, IPSAN has been more and more attention and application. Commonly used several storage methods As the early network is very simple, direct-attached storage (DAS) is the first to be used in the network storage system. In the DAS storage architecture, in order to avoid a single point of error, usually use a number of servers to share a storage system. When you need to increase the system’s storage capacity, the general use of increased disk display (RAID) way. DAS was once a popular storage system, but can not meet the large-capacity storage needs, so there have been NAS and SAN and other storage technologies. The network storage system includes the file server and the storage device component, the NAS installs the preconfigured storage device, causes the master server to “free” from the file I / O operation, depending on the server as an optimized file system, the operating system no longer To achieve the calculation function, only to provide file system functions, the client directly through the NAS system and storage devices to exchange data between. NAS directly run the file system, such as NFS / CIFS, etc., by setting up the NAS can be achieved in different clients (such as NT and Unix) to share data between. Drive, tape drive or removable storage media and embedded system software, it can support a variety of application protocols (such as NFS, CIFS, FTP, HTTP, etc.), but also to support a variety of operating systems, such as Unix / windowsNT, and In the use of different network environments do not need to make any changes to the network environment. NAS products directly through the network interface to connect to the network, simply configure the IP address, you can be shared by users on the network. NAS is suitable for transferring files and sharing files over a LAN. This approach will take up a large number of host CPU resources, file operations delay is quite large. The increase in the amount of data, so that DAS and NAS the same problem, not to improve the storage capacity and unlimited increase in storage devices.

Compared with DAS and NAS storage, SAN’s advantage is that all data processing is not done by the server, SAN is a storage device, connected devices and interfaces integrated in a high-speed network technology, which itself is a storage network , Assume the main network of data storage tasks. In the SAN network, all data transmission in high-speed, high-bandwidth network, SAN storage is the realization of the physical hardware block-level storage access, improve the storage performance and upgrade capabilities. According to the transmission protocol and physical medium adopted by the storage network, SAN is implemented by FCSAN and IPSAN. FCSAN adopts high-speed fiber channel to form storage network. It is the mainstream technology of SAN. With the openness of Ethernet and IP and the advantages of block storage in many ways, and IP protocol-iSCSI instead of Fiber Channel protocol to achieve end-to-end SAN storage. ISCSI technology requires only low-cost investment, you can easily and quickly on the information and data for interactive transmission and management. Compared with the previous network access storage, iSCSI to solve the openness, capacity, transmission speed, compatibility, security and other issues, its superior performance so that the date of its release by the market attention and favor.

2)NVR high-definition network dedicated storage

Can be used with the network camera (IPCamera), based on IP network monitoring signal access, distribution, browsing, video, playback, management and other integrated features.

WODSEE is one of the best WIP20A-AA25 IP Surveillance Camera IP Camera App support Starvis H.265/H.264 IP Camera manufacturers and suppliers and we have one of the famous brands. You can buy or wholesale high quality and newest products with CE certification from our factory.