Q:How to find the camera dead ends

Professional is this: from the camera's lowest vertical angle and 45 degrees direction of the corner shot to the ground for the vertex to draw a square to the corner, for most of the camera is within the square of the collection area is invalid, basically applicable to The market of 90 percent of the camera, very few high-value professional equipment, except, even if the square of the two sides can sweep the image of the place has been seriously deformed, there is no legal effect, this has been in court there are numerous cases

Q:What is the difference between a dome camera, a gun camera and a dome camera in security monitoring?

Mainly the use of the difference, the dome camera is generally used for indoor ceiling place, because it is relatively small, so more beautiful. Gun camera is generally installed in the channel, plant or parking area and other areas. The advantage is that you can install long focal length lens to expand the scope of monitoring, the disadvantage is more obvious.

Q:Police surveillance camera and civilian What is the difference?

Police monitoring camera and civilian is not much difference, according to the project budget to choose the right price of the product on it, there is a military equipment, need to go through the relevant military certification, as long as the relevant military certification, and ordinary equipment is very Big difference, at least the price can be put up.

Q:How to monitor their own home in the home camera, in the first floor, in the 5th floor to see!

VCR simple, you put the host downstairs, a line upstairs, then the TV can see. Disadvantages: uncontrollable.

Q:What is the difference and connection between the optical zoom and the digital zoom of the camera in the security monitoring?

Optical zoom is that we often say that the mechanical zoom (manual and automatic), manual is the lens we usually zoom, auto zoom is common is that we use the ball machine and PTZ to pull closer to control zoom.

Q:I would like to ask how the video surveillance camera is powered?

You are right, video surveillance cameras used to make a signal with a coaxial line, and then another line when the power supply, but the two lines can also be a line to achieve. That is to use control Because the control line is a double core, with a shield, we can put the video ground, and the power of the negative line, together, sharing a line, that is, the control line of the shield, and then Inside the two core, one when the video signal is positive, one when the power is positive. This can, but if the distance is very long, it is recommended not to do so, because of this, the signal shielding will be a little interference.

Q:Camera monitor the recorded file 1 hour how much G ah?

With the hard disk capacity divided by the size of the daily video file and then divided by the number of cameras is the number of days to save the video

Q:How to install a surveillance camera

1. Remove the camera, and then plug the USB port into the computer interface, if long-term use, it is recommended to insert the board.

Q:Monitor knowledge! 1.2 m × 20 meters of the corridor with a large angle of the camera the best?

1.2 m × 20 meters corridor with 6mm and above the best number of mm, 3 m × 5 m of the room with the best 3.6. And then according to whether it is necessary to night vision function, choose the camera is not on behalf of the infrared function!

Q:Network monitoring camera how to make external network access?

Enter the router, set the forwarding rules inside the DMZ host, the camera's internal network IP and port number can be filled into the DMZ host inside, if you do not have static IP, then have to apply for dynamic domain name (DDNS), and then you can from WAN Enter your dynamic domain name to view the camera