Q:What is the meaning of the camera function heartbeat?

In order to ensure that the heartbeat mechanism is in contact with the monitoring center when idle, a heartbeat mechanism based on the network and the host load is to use the information parameters in the network system to establish a mechanism for sensing the current network and The load condition of the host and dynamically adjusts the heartbeat mechanism of the heartbeat transmission cycle in real time according to the load condition so as to speed up the node fault detection system when the system resources are not occupied too. The "heartbeat" function is mainly used for the joint system function Of the monitoring and to achieve some of their own functions automatically switch.

Q:I want to install a set of monitoring, a total of 15 cameras, the farthest camera from the hard disk recorder 500 meters, how to install? What equipment?

The general home about three hundred of the camera can need a power cord (then 220V mains), a 12V power supply, a video cable (connected capture card) video line with 75-3 line on the line, the line needs to use two BNC head to connect the camera and capture card software, the collection cassette with a CD-ROM, a collection card driver and monitoring system, the installation is relatively simple

Q:Wireless remote monitoring camera farthest to monitor how far

Wireless camera, generally refers to the access network part is wifi, not wired, so his distance is determined by the distance of the wireless router, spade router power how much it can extend the distance even greater, as the camera can see how much Range, decided by the camera lens, usually 10-20 meters.

Q:Dvr monitor the video recorder without image output is what the problem

What show? Is the connection right? Machines and connections are no problem, that is, the connection and display and video recorder display mode no election.

Q:Explosion-proof surveillance cameras can be installed directly on the top of the tank

Explosion-proof surveillance cameras can be considered Shenzhen Rongfang technology companies related products

Q:Monitor the camera image virtual how the matter

3, poor interface. This is generally for the simulation of the BNC interface for a new BNC head to try.

Q:The camera used to monitor the color of the screen is not normal. Blue as red. Red out is blue. New to buy the camera

This is the reason for the collection card, the problem is installed after the acquisition card.

Q:What is the camera's shooting range? How much is the diameter?

The lens used in the camera is similar to the SLR camera, and is arranged in the order of 2.8mm, 3.6mm, 4mm, 6mm, 8mm, 12mm, 16mm, 24mm and so on. The smaller the number of millimeters, the wider the picture taken by the lens, but the closer the distance is; the larger the number of millimeters, the narrower the screen taken by the surveillance camera, but the farther the distance is.

Q:Can the general camera be monitored?

All cameras can be monitored, but not all cameras are suitable for monitoring. The purpose of monitoring is to clearly record the process of the incident, which requires the performance of the camera as a monitor to suit the work environment, site conditions and other requirements.

Q:How is the general surveillance camera connected to the computer?

(3) the camera's signal line connected to the video capture card, thus, completed the video capture card hardware installation. In addition, the need for software installation. Install the video capture card using the driver, MPEG encoder, *** and so on.