Q:Monitor the hard disk on the recorder is what format without formatting

Continuous monitoring, then, hard disk is full, automatically erased the oldest video, recorded the new. Loop video.

Q:What is the difference between a camera and a monitor?

Camera digital camera The wide range of cameras, the basic principles of its work are the same: the optical image signal into electrical signals, in order to facilitate storage or transmission. When we shoot an object, the light reflected on the object is collected by the camera lens, focusing it on the light receiving surface of the camera (such as the target surface of the camera tube), and then through the imaging device to light into electricity, that is, "Video signal". Photoelectric signal is very weak, need to be pre-amplifier circuit to enlarge, and then through a variety of circuits for processing and adjustment, the final standard signal can be sent to the recorder and other recording media recorded, or spread through the transmission system or sent to the monitor display.

Q:Monitor the camera what is the zoom

The lens is equivalent to the human eye lens, if there is no lens, the human eye can not see any objects; if there is no lens, then the camera output image is a vast expanse of white, no clear image output, which with our home camera and camera principle Is consistent. When the human eye can not stretch the lens to the normal position, that is, people often say myopia, the front of the scene becomes blurred; camera and lens with a similar phenomenon, when the image becomes unclear , You can adjust the camera's back focus, change the CCD chip and the lens reference plane distance (equivalent to adjust the position of the human eye lens), you can blur the image becomes clear. Thus, the role of the lens in the closed-circuit monitoring system is very important. Engineering designers and construction workers should often deal with the lens: the designer according to object distance, imaging size calculation lens focal length, the construction staff often on-site commissioning, part of the lens is to adjust to the best condition.

Q:An accurate calculation formula for monitoring the focal length and actual distance of the lens

So when you need to monitor the panorama to see the local, the general should consider the use of electric two variable or electric three variable lens. Of course, in the selected lens under the premise of the use of high-resolution cameras and monitors can be monitored objects in the smaller size can also see the local details.

Q:Monitor how the camera looks online

Monitoring the camera through the Internet to see, you must upload real-time data on the Internet. For example: small degree i eyes and ears

Q:How to use the network cable to connect the surveillance camera?

1, the use of two of the network cable transmission video. If the camera is a direct video output, usually with a dedicated video cable video, but also useful cable transmission video (only two of them), often in order to save costs.

Q:Monitoring camera Sony chip how to identify

SHARP high and low solution: can be equipped with SHARP D4, HITACHI, NEXTCHIP, A-NOVA

Q:Monitor the camera with high illumination and low light

The minimum illuminance of the surveillance camera is the scene illumination value when the level of the video signal of the camera output is low to a certain value when the illuminance of the subject is low to a certain extent, and the value is smaller, indicating that the camera The higher the sensitivity. In addition, the minimum illumination will be changed according to the F value of the lens.

Q:HD camera and infrared camera difference

HD camera and infrared camera are part of a surveillance camera, high-definition camera may also have infrared function, infrared camera may also be high-definition camera, the need for specific models specific analysis.

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.