Camera
- NVR & DVR
NVRs and DVRs both perform the same function but differ in the mode of operation and the type of cameras function. In general, DVRs and NVRs are both used for video recording. NVR stands for Network Video Recorder and is also known as a network video recorder. In contrast, DVR stands for Digital Video Recorder.
Let’s compare the DVR and NVR in brief:
The NVR and DVR are different in the way they process the data. The DVR processes the video data on the recorder while the NVR encrypts and process the data in the camera, then the encrypted data are sent to the recorder, which performs playback, remote view and stores the data.
Devices process data in different methods by different types of cameras. NVRs support network cameras and DVRs support analog and analog HD cameras. In appearance, the difference between a DVR and an NVR is quite characteristic. The NVR device operates via RJ45 ports, while the DVR device has a coaxial port.
- IP CAMERA
A camera working in the networks and transmits images anywhere on the web in real-time. For instance, the administrative department of a company in Tehran can monitor and watch the production process and premises of production plant in the other city through the internet.
The difference between Network Camera and CCTV cameras?
Both types of cameras are used to monitor and control different places and storing information and images on storage devices. By Network Cameras you have access to the locations from anywhere via internet while CCTV cameras, provide accesses from the control room located in the same site where cameras installed. In addition, the installation and operation of CCTV cameras are far more difficult than network cameras and more expensive.
- CABLING
Cabling plays a critical role in CCTV camera installation that effects on the quality of the output images. In other words, applying the standards and protocols while cabling CCTV system, it has significant impacts on the quality outputs. Today, the caballing topologies applied to install the CCTV cameras are applied in many ways, such as analog and network wiring in buildings and premises.
Since CCTV cameras vary in quiet range therefore cabling method varies accordingly. As mentioned, caballing topology has a tremendous impact on image quality.
RG59 cables are used in the analog wiring which connect camera and DVR device by a BNC jack. In fact, this cable connects to the input of the DVR on one side and to the output of the CCTV camera on the other side. Ducting and piping must be applied to protect cables from any damages resulting of dusts, rain, snow, etc.
Pipes used for cabling could be plastic or polyethylene that the latter is more durable. The flexi-tubes with metallic cover in market in compare with plastics and polyethylene are more expensive.
At last, the ducts are used for indoors that provide easier access for the experts in case of occurring in issue in the cables.
- MONITORING
The main purpose of using CCTV cameras is to provide security, prevent crime and find criminals in the event of a crime. Naturally, when you consider a CCTV system for space, you need to display the images sent by the CCTV camera in a monitor and save it to the video recorder. In many cases where the CCTV camera is installed, images are recorded by NVR or DVR and displayed by a monitor. The recording and displaying the data captured by cameras is called CCTV monitoring. In the case of large areas and premises where several cameras are installed, it is required a set of equipment that are installed in a room so that the operator can have monitor the location simultaneously.
The monitoring room is the place equipped by necessary devices to capture data and monitor locations by the CCTV cameras. Not any premises equipped by CCTV has surveillance rooms, it is generally installed in large sites and plants those multiple cameras are operating, for instance larges companies, hospitals, subways, etc. It is important to indicate, the more quality equipment used in monitoring, the more efficient and qualified outputs will be available.
- SMART SECURITY SYSTEM
Smart homes promise a future in which you can control everything you want with just a simple voice command, even if you are away from home. There are interesting tools that enable you to make your home smarter. Many of these devices, such as smart alarms and locks, cameras, smart sensors, etc. are participating in the smart home security system.
An intelligent security and protection system, as its name implies, is a method or device that provides security by cooperating with a set of components and devices. These devices work together through a control panel to protect the home from burglars or potential hazards.
Types of intelligent security systems:
- Remote notification and video display
- Protect valuables
- Door and window alerts
- Smart door opener
- Door lock equipped with password, fingerprint sensor and RFID tag
All security systems operate on the same principles. The main purpose is to protect the entrances such as doors and windows, along with establishing the security of the interior and the protection of valuables. In addition to providing security, the security system is also responsible for creating comfort and convenience in the smart home.
- SYSTEM DESIGN
CCTV system design principles:
The first step is to define the needs for better choice. These needs are determined by the customer and the technical team of Securitekron.
There are many requirements to consider, such as the area to be monitored, ambient lighting, access points, and so on. Knowing the needs accurately enables you to compare the features of a camera based on your needs.
In choosing a CCTV camera, you should pay attention to factors such as the type of light in the environment, the amount of energy required, the price of the CCTV camera, the type of lens, the type of image analysis, and so on.
The amount of light or brightness during daylight hours has a direct impact on the performance of the CCTV camera. Surveillance cameras used for outdoor environments generally use lenses with automatic apertures to be able to automatically keep the scale of light changes or brightness to a moderate level.
In the case of indoor CCTV, a software balances the light or brightness of the environment.