Q:Monitor the camera mentioned in the three stream, what is the meaning of ah, which three?

The three stream uses a high bit rate bit stream for local high definition storage, such as h.264 D1 encoding, all the way low bit rate stream for network transmission, such as D1 / CIF encoding, another way ultra low bit stream for 3G Network transmission, mobile phone viewing, such as QCIF, while taking into account the local storage and remote network transmission.

Q:What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used

The DVR mainly converts the analog video signal into a digital signal for storage (that is, video). Now the hard disk video recorders are generally with network transmission function. Know the product features also understand the use of places, the encoder is generally used for network monitoring.

Q:Monitor camera parameters how to see

Aperture: the aperture installed in the back of the lens, the greater the aperture open, the greater the amount of light through the lens, the higher the clarity of the image; the smaller the aperture, the smaller the amount of light through the lens, the image clarity low. Usually with F (luminous flux) to represent. F = focal length (f) / light aperture. In the camera's technical indicators, we can often see 6mm / F1.4 such parameters, which indicates that the focal length of the lens is 6mm, luminous flux of 1.4, then we can easily calculate the aperture of 4.29mm. In the case of the same focal length f, F value is smaller, the greater the aperture, reach the CCD chip, the greater the luminous flux, the better the lens.

Q:Monitor the difference between the camera 720p and 1200 lines

Simply from the literal point of view, 1200 lines look better than 720P, but the actual effect, the 1200 line of the camera is through digital-analog conversion, and the effect of CMOS lens application in the simulation system, matching the problem (popular say acclimatized) , So the image of the 1200 line is much worse than the 720P image.

Q:Monitor the video recorder has been unable to work what is the reason

Use the environment to have static electricity or current. You can try the recorder ground wire;

Q:Wireless remote monitoring camera farthest to monitor how far

Monitoring distance unlimited, there is a network can monitor ... have

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

Need to do a bracket, can not be installed directly, need to see the actual situation

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:Monitoring the camera has a 700 line with 1080 lines of 900 lines is what does that mean? consult

700 lines refers to the horizontal direction of the camera's resolution is 700 lines. The number of digits indicates that the higher the resolution, the more details you can shoot.

Q:Monitor the hard disk video recorder how to pick up the computer

WAN: If your video recorder and the computer to see the image is not in a place, their network cable can not be inserted under the same router, then we must browse through the WAN. The basic operation is almost, but if you are the average family of the Internet, then to apply for domain names, do mapping on the router.