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metal screening,aluminium screening,metal sun screening,metal fence panel Huiye Hardware & Electrical Equipment Company Ltd. , https://www.jmhuiyehardware.com
According to the installation method, it is divided into side loading and lifting. It is to install the pan/tilt on the ceiling or on the wall.
According to the appearance, it is divided into ordinary type and ball type. The ball type PTZ is placed in a hemispherical and spherical protective cover. In addition to preventing dust from disturbing the image, it is also concealed, beautiful and fast.
When selecting the PTZ, consider the installation environment, installation method, working voltage, and load size. Also consider factors such as the performance price ratio and appearance. Bracket If the camera is only fixed to monitor a certain position and does not need to rotate, then only the camera bracket can meet the requirement. Ordinary camera brackets are simple to install, inexpensive, and varied. Ordinary brackets are short, long, straight, and bent, and different models are selected according to different requirements. Outdoor brackets mainly consider whether the load capacity meets the requirements, and then there is the installation position, because many outdoor cameras installed on different occasions in special locations, some installed on the pole, some standing on the tower crane, and some installed on the iron frame ...... Due to various reasons, the existing brackets may be difficult to meet requirements and require additional processing or improvement, and no more will be said here. Shields Shields are also one of the most commonly used devices in surveillance systems and can be divided into two types, indoor and outdoor. The main difference between the indoor protective cover is the size, the appearance is beautiful, and whether the surface treatment is qualified. The function is mainly dust and vandalism. The outdoor protective cover must have good sealing performance to ensure that rain cannot enter the protective cover to erode the camera. Some outdoor enclosures also have exhaust fans, heating plates, and rain guards to better protect the equipment. When the weather is too hot, the exhaust fan automatically works; when it is too cold, the heating plate automatically works; when there is rain on the protective cover glass, the rain control device can be activated through the control system. When selecting the protective cover, look at the overall structure. The smaller the number of mounting holes is, the better it is for waterproofing. Then look at whether the internal wiring is easy to connect. Finally, consider the appearance, the mounting seat, and the weight. Monitor The monitor is the standard output of the surveillance system. With the monitor we can view the images sent from the front end. The monitor is divided into color, black and white, sizes 9,10,12,14,15,17,21 inches, etc., commonly used is 14 inches. The monitor also has a resolution and is represented by the same number of lines as the camera. In practice, it is generally required that the number of monitor lines matches the camera. In addition, some monitors have audio input, S-video input, RGB component input, etc., except for the audio input monitoring system, the rest of the functions are mostly used for image processing work, and will not be introduced here.
Video frequency valley amplifier When the video transmission distance is relatively long, it is better to use a video line with a thicker wire diameter, and at the same time, the video amplifier can be increased in the line to enhance the signal strength to achieve long-distance transmission purposes. Video amplifiers can enhance the video's brightness, chroma, and synchronization signals, but intra-line interference signals can also be amplified. In addition, too many video amplifiers cannot be connected in series in the loop, otherwise saturation may occur, resulting in image distortion. Video distributor All the way to the video signal corresponds to a monitor or video recorder. If you want to send the images of one camera to multiple managers, you have better choose the video distributor. Because the attenuation of the parallel video signal is large, the impedance of the parallel video signal is not matched, the image is seriously distorted, and the line is unstable. In addition to impedance matching, the video distributor also has video gain so that video signals can be sent to multiple output devices at the same time without being affected. The video switcher multi-channel video signal should be sent to the same place for monitoring, and the video can be associated with a monitor. However, the monitor occupies a large area and the price is expensive. If it is not required to monitor it at any time, an additional switch can be added to the monitoring room. Connect the camera output signal to the input of the switcher. The output terminal of the switcher is connected to the monitor. The input of the switcher is divided into 2, 4, 6, 8, 12 and 16, and the output is divided into single and double outputs. Road, but also can switch audio simultaneously (depending on the model). The switcher has manual switching and automatic switching. The manual method is to see which way to switch the switch; the automatic method is to make the preset video delay switch in order, the switching time can be adjusted by a knob. Usually between 1 second and 35 seconds. The switcher is cheap (usually only three or five hundred yuan), the connection is simple, and the operation is convenient, but only one of the images in the input can be viewed within a period of time. To view multiple camera images on a monitor at the same time, you need to use a picture splitter. Screen Divider The screen divider has four divisions, nine divisions, and sixteen divisions. It can display 4, 9 or 16 camera images on one monitor at the same time, or it can be sent to a recorder for recording. Quadrisection is one of the most commonly used devices, and its performance and price ratio are also better. The quality and continuity of the image can meet most of the requirements. Nine and sixteen segments are more expensive, and the resolution and continuity of each image after segmentation are reduced, and the video is not good. There are also six-, eight-, and quad-segment devices, but image ratios, sharpness, and continuity are not ideal, and market usage is small. Most of the splitters can display single images in addition to images, and can superimpose time and characters, set automatic switching, and even alarm equipment. Video recorders The most common recording devices in surveillance systems are civilian video recorders and longer-duration video recorders, which are easy to learn and video tapes are easy to store and purchase. It should be noted that unlike home video recorders, time-lapse video recorders can work for a long period of time, can record images for 24 hours (using regular VHS video tapes) and even hundreds of hours, can be connected to alarm equipment, receive alarm signals and automatically start recording, and can superimpose time and date. You can program the VCR's automatic recording program, select the recording speed, and automatically stop or rewind the tape after the tape is over. Although the performance of the time-lapse video recorder is outstanding, it is expensive and the resolution is not very high at present. In the time-lapse video recording, the image will also be lost, and the playback image will be skipped one by one. Video Input Red, green, blue, and sync signals are separate electrical signals in computer video. In VHS video, the red, green, blue, and sync signals are a single electrical signal. In S-VHS video, the red, green, blue, and sync signals are separated. The video input here mainly refers to the process of external video recorders or cameras recording the monitored area and then inputting them to the monitor. Because there are multiple video recorders or cameras, there may be multiple inputs, according to the above divider there are 4 Road, 9-way, 16-way input, etc.
Video output For the output of the security monitoring system, the monitor is the standard output of the monitoring system. With the monitor we can view the images sent from the front end. The monitor is divided into color, black and white. The video input on both the camera and the video recorder is finally input to the monitor for monitoring. Audio input Audio input refers to the process that the sound in the monitored area is collected and sent to the monitoring center. Because there may be multiple locations in the monitored area, there will be multiple audio inputs. The simplest example is the prison room surveillance system. The collection of sounds for each cell is a typical multi-channel audio input system. Audio output Audio output refers to the process of the audio being collected from the monitored area. Because some monitoring systems do not require the output of sound, output devices are not required. However, some security monitoring systems require audio output. Website promotion even requires multiple audio outputs. Communication Interface The communication interface in the security monitoring system is mainly for the input and output of video and audio. So the communication interface generally has the following kinds: RS-232, RS-485, general network interface, can support various networking environments of PSTN, ISDN and LAN, Kaoyan has USB2.0 ultra high-speed data interface, connect the computer to carry on the important image data Backup, optional with progressive scan VGA output interface.
1.Various Material Available: Steel or Aluminium Alloy at customer's requirement;
2. Features: Top quality and reasonable price, Rigid strong construction, Easy to assemble and durable;
3.Steel Structure/Steel Construction Product range: Staircase for Indoor and Outdoor, Handrial, Balustrade, Door Frame, Screening and hoods, etc;
4. Various Sizes, Colours available at customer's design
5. We could do surface Treatments for the parts: Primer and Painting / Powder Coating
If you are interested in our products,please contact us.
Security monitoring equipment includes many aspects, so its type of equipment is also relatively complex, basically can be divided into television monitoring systems, alarm control systems, remote image transmission equipment products, mainly the following types of monitoring system equipment: icrosoft-com :office:office" /> PTZ is actually a mounting platform consisting of two AC motors that can move horizontally and vertically, but pay attention to what we call PTZ is different from PTZ in cameras. The head is generally just a tripod and can only be adjusted by hand; and the head of the surveillance system is controlled by the control system to control the direction of rotation and movement of the head. There are many types of heads: Press The use of the environment is divided into indoor and outdoor type, the main difference is that the outdoor type sealing performance is good, waterproof, dustproof, large load.