Monitoring places: panoramic camera core algorithms and requiremen

Structure of high - speed dome camera

High-speed dome camera is highly integrated, integrated PTZ system, communication system and camera system, PTZ system is to rely on stepper motor rotation to adjust the direction of the fast ball monitoring; communication system refers to the motor Control and video and signal transmission part; camera system includes one machine movement. Between the various systems, the main CPU processor and power supply part of the horizontal connection is played. Power supply for the system, while the CPU is to maintain the normal operation of all the functions of the camera.

High-speed ball in its realization of the evolution of the principle of little change, in detail, the high-speed ball is the use of "differential step motor motor" structure of its rapid and accurate positioning and rotation, all through the CPU processing chip issued by the instructions To perform, and then the camera's image and control functions into the high-speed ball movement RAM memory, and also the camera's many functions, such as white balance, shutter, aperture, zoom, focus, etc. set to the actual control project.

High-speed dome camera has several major hardware parts worth mentioning, first of all the rotation of the motor part, then the slip ring, followed by the power part and control the motherboard, the transmission belt is also very important. And its communication part is related to the communication protocol and its protocol (Protocol) way, the communication protocol refers to the high-speed ball with the host system to communicate with each other when the choice of communication content code, communication protocol means that these communication protocols can accept what Way to carry out control instructions issued and communication. In general, the current high-speed dome camera to adopt RS-485 communication more, but in the communication and control characters string on the manufacturers are slightly different.

High Speed Dome Camera Installation and Maintenance

In the video surveillance camera, the high speed dome is the most perfect, whether it is from the appearance, type or function, the appearance of the perfect line, but also both infrared, low light, wide dynamic function, and in all-weather monitoring applications , High-speed ball control more than a large proportion of night vision monitoring applications, then the infrared high-speed dome camera in the installation and operation and maintenance of what matters need attention?

Infrared dome camera, infrared night vision dome camera, outdoor infrared high-speed dome, indoor infrared high-speed dome camera, which are currently used in video surveillance system often used in the night vision front-end image acquisition equipment, due to infrared high-speed dome camera integrated High-speed ball control, array infrared light, power supply and PTZ control, integrated zoom movement control and other functional modules, and its intelligent function is also increasingly rich, almost entirely an intelligent system, therefore, in the installation of infrared High-speed dome camera as long as the following precautions to remember, will be able to infrared high-speed dome camera installation and operation feel more relaxed.

First of all to pay attention to the size of the infrared power is sufficient, the infrared light optional power supply should be as much as possible to meet the maximum power required, often resulting in insufficient power and lead to the situation is not enough light.

After you get the infrared high-speed dome camera, remember to get rid of the whole installation process, so as to avoid damage to the infrared components and movement of the collision, to know the high speed dome camera failure rate is its long-term service life Guarantee.

Installation to avoid direct light, infrared high-speed dome camera Whether installed indoors or outdoors, the camera is not installed in the location of high light or other light or reflective light, and not a long time to shoot very bright objects (Such as light), and do not shoot the infrared camera against the sun, or not only can not play infrared start function, more likely to affect the monitoring screen effect. Infrared high-speed dome camera in the unstable light source will cause a flash, a direct impact on the overall monitoring effect.

In the installation process, many technical staff like to hand to the infrared high-speed dome camera tail line, infrared high-speed dome camera cable is directly connected to the conductive slip ring interface, if the direct pull cable, it is easy There is poor contact with the situation, the best way is to hold the high-speed dome with both hands to install.

Camera installation process, the power cord to receive infrared high-speed dome near the camera, while the infrared high-speed dome of the power cable do not extend, If a centralized power supply to a number of infrared high-speed dome camera, it may lead to different distance or indoor and outdoor infrared high-speed dome camera voltage and current sometimes uneven and inadequate, especially in the thunderstorm weather, line resistance increased , The supply voltage and current is likely to lead to infrared high-speed dome camera motherboard burned, and thus can not be monitored.

When installing infrared high-speed dome camera also pay attention to anti-magnetic, infrared high-speed dome camera do not install in a strong electromagnetic radiation near the source, such as radio or TV transmitter, mobile phone, too close to the signal will be affected, The

In the installation of fast ball should also pay attention to rust problem, the domestic more rainy south, the north of the rain and snow and haze and water vapor is almost all the metal material killer, if found to monitor the metal bracket bracket corrosion, be sure to timely maintenance, to avoid Fast ball drop or due to screw loosening caused by monitoring the screen offset and other issues.

Infrared high-speed dome camera in the installation of wiring, be sure to distinguish between RS-485 communication protocol control lines and power lines, many installation accidents, are engineers in the negligence of the RS-485 signal received 24VAC power, so infrared high-speed Dome camera control module may burn on the spot burned, so in the installation to seriously see the logo, and to protect the relevant cable logo for construction and future maintenance.

Infrared high-speed dome camera installed in the indoor and outdoor use is completely different. In the outdoor installation, we must carry out rigorous waterproofing treatment, most people think that installed in the outdoor infrared high-speed dome camera itself does not have a waterproof function? Having said that, for the high-speed dome itself is waterproof, But the installation of fast ball always with the external cable to connect, there are always exposed part of the wiring, if the wiring parts and wiring access methods improperly, or bad seal are likely to cause water, especially the use of hanging installation or Self-made wall mounted bracket installed, so we must seriously deal with infrared high-speed dome camera waterproofing.

In the installation and maintenance should pay attention to loss prevention, in the daily regular cleaning high-speed dome camera with a soft, dry cloth wipe fingerprints or dust, with a dust cleaner to remove the lens dust, with a soft, dry cloth wipe Fuselage, if the stain is very stubborn, can be dipped in a small amount of cloth with a neutral detergent, and then dry. Do not use volatile solvents such as alcohol, gasoline or thinner during cleaning, as this may damage the surface gloss.

In the maintenance of infrared high-speed dome camera should pay attention to prevent the aging of the equipment accessories, if the infrared high-speed dome camera with anti-waterproof dust or explosion-proof shell, then check the cable access device in the sealing ring elasticity Become important and necessary, such as the discovery of sealing apron due to aging time to lose elasticity, must use the same specifications of the parts replacement, not with other materials to replace, to ensure its tightness and water resistance.

Finally, in the installation of infrared high-speed dome camera, select the appropriate power supply is very important, because if the power supply is too small, not up to the infrared high-speed dome camera rated power, infrared high-speed dome camera main circuit board If the power is too large or too small, the infrared light will affect the LED and cause its attenuation, if the heat does not come out, it will affect the camera photographic components chip work, in addition to the work of the camera, There will be the risk of overheating caused by the circuit, but also shorten the life of the camera.

Even if the above precautions are still not enough, and the most important thing is to carefully read the product manual, before and after installation and maintenance checks should pay attention to whether to do every safety steps, and follow the instructions instructions for infrared high-speed ball The camera settings and operation, so as not to bring their own trouble.