Notebook Why can't the camera work?

Network video can make friends get rid of the distance limit, but when using a laptop, will you encounter the problem that the camera can't be used, resulting in no video? I'll tell you the solution!

Computer camera classification

Cameras can be divided into digital cameras and analog cameras. Digital cameras can convert analog video signals generated by video acquisition equipment into digital signals, and then store them in computers. The video signal captured by analog camera must be converted into digital mode by special video acquisition card and compressed before it can be converted into computer. Digital camera can shoot images directly, and then transmit them to computer through serial port, parallel port or USB interface.

Cameras in the computer market are mainly digital cameras, and digital cameras are mainly USB digital cameras with new data transmission interfaces, which can be seen in the market. Most of them are such products. In addition, there is another product that works with the video capture card, but it is not the mainstream. Due to the rapid popularization of personal computers, the overall cost of analog cameras is high, and it can not meet the interface of BSV LCD splicing screen. The transmission speed of USB interface is much higher than that of serial port and parallel port, so there are digital cameras with USB interface on the market. Analog camera can be used with video capture card or USB video capture card, which is convenient to connect with computer. The typical application is general video surveillance.

Why the camera doesn't work: the driving problem of the camera

1. The camera is not connected to the computer. For example, if we are a USB camera, please check whether the connection between the camera and the computer is normal, whether the USB interface of the computer host is normal and whether it is loose. For users who don't know whether the US interface is normal, they can enter the device manager to see if the computer recognizes the graphic video device.

2. The camera driver is not installed correctly. Although many USB cameras are now driver-free, usually they come with the system, there are still many cameras that need to download and install the corresponding drivers in order to judge whether the cameras are installed with the correct drivers. We can go into the device manager and see if there are any hardware devices that are driven.

It is most common that this kind of camera can't be used. The solution is that it can be installed on a CD (usually containing the corresponding driver). If not, you can download a driver wizard, automatically detect and then automatically install it. Some fake cameras can use the driver wizard, but no matching driver can be found. In this case, let's learn about the brand and model of the camera first, and then Baidu searches for the corresponding driver to download and install.

Why the camera doesn't work: camera compatibility

3. The camera conflicts with other software and hardware of the computer. Many users will encounter this situation. Before, the camera was fine. Suddenly, after installing some software in the back, the camera suddenly failed to work. This situation is likely to be a conflict between the camera and some software. More common computers have installed 360 software. I don't know when the 360 desktop was automatically installed. Later, I opened the 360 desktop and found that the camera could not be used, but the 360 desktop camera was normal after uninstalling.

For the case that the camera used to be fine, but suddenly broke down recently, it is mainly necessary to pay attention to whether there is any newly installed software or hardware, either the software and hardware are compatible or the camera is out of order. Generally, these two situations are more.

4. The camera is broken. As computer hardware, it may break down, especially some fake cameras are often easily damaged. If you find any equipment or unknown hardware related to the camera in the computer device manager, it means that the computer does not recognize the camera. If everything is all right, then we can try it on another computer. If it is still unrecognizable, it can basically be concluded that the camera is faulty and needs to buy a new one.