Q:What is the power of the camera used for monitoring?

31 cameras, if all fixed, then the power supply of each camera should be DC12V / 1A, each 12W, 31 * 12 = 372W, RVV2 * 0.75 power line is enough.

Q:Do you want to monitor the camera?

Weak point of delivery is to talk about the power adapter in the 220v voltage this head, the transmission line is 12v voltage, suitable for closer from the video camera camera.

Q:Monitor the camera feel infrared

Infrared lens, the day will be a little color, color lens will not! Now with the monitoring of the CCD are feeling infrared, only the lens does not sense the sense of infrared.

Q:Monitor the camera 1 road 4 what is the difference

Very simple This is for the camera's hard disk video recorder to the general are at least 4 Road 8 Road 16 Road 32 Road, a camera all the way, there are 16 points can be connected to 16 points is 16 cameras.

Q:How to use video surveillance video surveillance

Forget to tell you, a decoder card (4 Road Dahua) 1200 yuan, 300 yuan conversion interface.

Q:Digital camera and analog camera difference

The analog camera can convert the analog video signal generated by the video capture device into a digital signal and store it in a computer. The video signal captured by the analog camera must be converted to digital mode via a specific video capture card and compressed before it can be converted to a computer. Digital camera can capture images directly, and then through the string, parallel port or USB interface to the computer.

Q:How quickly remember to monitor the camera model, to do business, such as the DS_2CD3T20D-I5 which is what is the Thank you

1.4 The camera type code is represented by an Arabic numeral, see Table 1. Code definition 1 General type camera 2 Integrated camera 5 Dome camera 7 IP dome camera 8 IP gun type camera

Q:Dahua monitor a single image upside down, the rest of the camera are good, how the matter, had been good!

I also encountered a similar situation, contact Dahua customer service, there is no solution, this is pit! Later changed the AnRui pass the camera, feeling okay

Q:HD camera is said that his clarity, infrared camera is that it's night vision function, in order to highlight the main features of the name of a

2, the lens sub-focus lens and zoom lens. Zoom lens focal length is variable, the scene can be closer to or push away, to achieve several times the zoom effect, use it to the blackboard on the board book clearly, can also be the whole picture of the classroom, the focus can not be achieved this function. Equipped with a lens for the electric three variable lens, can be zoom, focus and aperture adjustment. Zoom to zoom in and out of the picture, change the viewing angle and image size; adjust the focus and aperture, adjust the image clarity. Can be classroom teacher or a student's big picture clear real-time fixed in the entire screen, can also push to the whole class image.

Q:What kind of material is needed to install the surveillance camera?

4, the number of video recorders, embedded professional hard disk video recorders have 4,8,16, the greater the number of road options can record the number of head more. Zhejiang Dahua video recorders for the 4-way 950 yuan or so. 8 Road, about 1,200 yuan 1615 yuan or so. If there are idle computer can also be installed to install the card to soft compression card for the column 4 Road 260 8 Road 380 16 Road 650