Analysis on the technical characteristics of CCTV monitoring equipment

The camera is the leader of closed-circuit monitoring equipment. The development of cameras, video recorders and control equipment driven by the technological advancement of the camera is profound and obvious to all. All these advances are in sync with the development of modern science and technology.

First, the camera CCD will not become a key component of the camera, the CCD camera will become a child's toy, and it may also be seen in some occasions where the requirements are not high. Cameras using holography, radar technology and image processing technology will be widely used, and the images taken will be more perfect, and the definition will have a qualitative leap. Specifically, it should have the following characteristics:
1. The camera using invisible light as the light source uses radar technology to filter out visible light, and emits a special band of invisible light as a light source. When these light waves reach the ordinary target, more than 95% of the energy will be reflected and partially reflected. The wave is accepted by the antenna of the camera, and the camera converts the reflected wave into an image signal to complete the imaging process. Because they do not require a visible light source, they can be used in both light and no light. This will greatly expand the range of applications and overcome all the shortcomings of current camera limitations such as illumination, backlight compensation and so on.
2. The lens will disappear. Since the camera does not rely on visible light as a light source, it does not require the current optical lens to collect light. Various smart receiving antennas will be installed in the monitored area to complete the lens function similar to the present.
3. The captured image will be a three-dimensional image. Since the camera relies on the antenna to receive the reflected wave of the target, the wavelength of the light is controlled to a certain extent, so that it diffracts the target of common size. The reflected wave can reach the receiving antenna of the camera, so that the camera can collect the information of the occluded part of the target, and achieve the purpose of capturing the omnidirectional image information of the target, and then processed by the holographic technology, and finally the three-dimensional image of the target can be obtained. Implementation of this technique may first be accomplished by installing a receiving antenna at various different orientations of the target. Now the "occlusion" problem in the closed-circuit monitoring project will become a history. There will be no occlusion in the future closed-circuit monitoring project, and the camera's transmit power will become the main technical indicator for measuring the camera grade. In a wide multi-column indoor parking lot, as long as a camera with enough power is installed, you will be able to see the image of any corner without leaving any dead ends. The necessary work to be done in the future monitoring project will be to solve the problem of shielding in the effective range of the camera, that is, to apply transparent absorbing materials to these parts so that their reflected energy to the camera antenna is The camera receives sensitivity below. The three-dimensional image captured by the camera has a strong sense of presence, and can be seen by the viewer through playback with a video processing technology. The playback and processing tasks of the images captured by the camera will fall on the player. In the following introduction, we will make a concrete imagination of the player.
4. The PTZ will officially withdraw from the historical stage. It has been said that the future camera will replace the modern optical lens with an antenna. As a key auxiliary device for expanding the surveillance range of the camera in the modern surveillance project, the PTZ will be used in the future monitoring system. It has no effect, because the camera at that time can solve the panoramic coverage problem by receiving the installation position of the antenna and changing the power of the camera, so there is no need to rotate the position of the camera to ingest a certain image somewhere, and because the image taken is three-dimensional. Stereoscopic images, the playback device has a high signal-to-noise ratio local high-magnification electronic zoom function, so the pan/tilt and optical zoom functions will not exist.
5. It has the function of automatically storing image information. The camera has a large capacity memory, which can automatically store the image information of the last 2000 hours. These memories can also be replaced at any time, so that when viewing the stored image information, Affect its normal storage.
6. Intelligent camera will inherit the dynamic detection function of the existing camera. According to the need, it can be set to store image information only when the target enters the surveillance area or set to record only dynamic images, eliminating the need for static images. Use storage space.
7, with an alarm function Because it already has a motion detection function, it can replace the current mobile alarm to achieve the alarm function. There is no need to install an alarm system when the monitoring equipment is installed.
8, can be connected to multiple monitor heads, it can connect up to dozens of monitor heads, the audio signal and video signal are simultaneously stored, automatically indicate that the audio signal comes from the monitor head during playback, and can also select a listener according to need sound. From the above description, it can be seen that the camera in the second half of the 21st century is very different from the modern camera. It consists of a transmitting antenna and a receiving antenna and a signal processing storage unit. There is only one transmitting antenna, and there are many receiving antennas. The antenna and processing section can be separated. Mounting the camera is to install the antenna, and the processing storage section can be installed in the control room.

Second, the change of the monitor camera will lead to the corresponding change of the monitor, the monitor will develop to ultra-thin and high definition, and can input digital signals and analog signals at the same time.

Third, the player because the camera already has image information storage function, the current video recorder will not be used. The task of extracting images is mainly done by the player. The player has powerful image processing functions. By connecting the camera's memory to the player, the player can arbitrarily capture images for a specific period of time. It can also select any partial image (including position and size) to enter high-power electronic amplification, while the noise is well suppressed. When viewing a three-dimensional image, you can view the image at any angle by adjusting the joystick. Combined with the high-magnification electronic zoom function, the human body can clearly see the pores from the face to the heel of the heel. Needless to say, the face value of the banknote, of course, the extraction of the corresponding audio signal is the most basic function. 4. The monitoring project installation of the monitoring project will become easy and comfortable, the number of cameras will be greatly reduced, and a large square may only have one large and medium power. The camera is enough to see every corner. When installing indoors, the key task is to select the location of the transmitting and receiving antennas, and apply a transparent absorbing material to the target that is not being watched, eliminating the troublesome process of adjusting the focus. The equipment in the control room will also be more concise, and the labor intensity of the on-duty personnel will be greatly reduced, without frequent pan-tilt lens operation and so on. In the outdoor installation, it is a troublesome protection system. As long as the lightning protection device is installed, these are indeed a great boon for engineering companies. The 21st century is a beautiful century, a century full of hope, and a century in which the closed-circuit monitoring industry has developed rapidly.