Difference between analog camera and webcam
First, we need to understand the basic information of analog cameras and webcams. The analog camera has only one BNC head and one power plug. Generally, the coaxial cable is used to transmit the monitoring video signal to the hard disk recorder and monitor, while the network camera has only one network cable socket and one power supply socket. Some support POE power supply, and there is only one network cable plug, which transmits the monitoring video signal to the network hard disk recorder through the network cable.
Analog camera and webcam
Method of changing analog camera to webcam
Without changing the original cable, replacing the analog camera with a webcam is to use the original coaxial cable as a network cable to transmit the monitoring video signal of the webcam. The camera and the original coaxial cable cannot be directly connected. At this time, the IP high-definition network coaxial transmission extender needs to be used. This device is usually used in pairs, that is, one pair of webcam is used.
Why should a webcam use a pair of IP network coaxial transmitters? Its principle is to convert the A and B ends of the coaxial cable into network ports through the IP network coaxial transmitter and convert the network signals into signals that can be transmitted through the coaxial cable, so that the coaxial line can be used as a network cable. For specific connection mode, please refer to the following connection diagram
Single camera connection scheme
What to do with multiple cameras？
When multiple cameras are used, they are usually used through switches or routers. At this time, there are multiple pairs of IP HD network coaxial transmission extenders used at the same time. At this time, it is necessary to group the IP HD network coaxial transmission extenders, otherwise it will cause conflicts and cannot be used normally. The principle of IP HD network coaxial transmission extender group pairing is to give a pair of IP HD network coaxial transmission extenders an independent name, just like the IP address. If they are independent, they will not conflict. After grouping, they can be used normally. This is also one reason why the network coaxial transmission extender is called IP HD network coaxial transmission extender.
Multi-camera connection solution
Multi-camera combination and cascade use solution
How to upgrade analog monitoring to network monitoring?
In general, using IP HD network coaxial transmission extender can upgrade analog monitoring to network monitoring without rewiring. It is especially suitable for scenes such as gas stations and elevators that are inconvenient to start rewiring. It saves a lot of human and material resources. After replacing the camera and connecting the equipment, the upgrade can be completed.