[ Huaqiang Security Network News ] This article China Security Network Xiaobian introduces the skill of purchasing a pan/tilt. The pan/tilt can be simply understood as a base that can rotate freely in all directions (horizontal 360°, vertical 90°). The use of the gimbal expands the field of view of the camera. In the TV monitoring system, places that need to be monitored by the patrol, such as halls, playgrounds, and plazas, often use the PTZ.
Yuntai is generally divided into ordinary and spherical heads. Ordinary pan/tilt is a bare-type pan/tilt head. When installing a camera, a camera cover is required. The ball-type pan-tilt is a built-in pan/tilt head with a global or hemispherical shield. Therefore, the ball-type pan/tilt has a beautiful appearance compared with the ordinary pan/tilt. Concealed and easy to install.
First, pay attention to the following points when using the PTZ:
1. Separate indoor and outdoor installation. The outdoor cloud platform has better water resistance, corrosion resistance, constant temperature and impact resistance than the indoor cloud platform, so as to adapt to the complex outdoor climatic conditions, its weight and carrying capacity are also greater than the indoor cloud platform.
2. According to special environmental requirements. Such as hotels, residential areas, government agencies, office buildings and other places, generally require a higher degree of concealment after the installation of the product, and therefore more use of the spherical head. It should be noted that since the indoor hemisphere head is required to be embedded in the ceiling, it cannot be installed if the top of the wall cannot be hollowed out.
3. If you add an infrared light to your camera, you must use an ordinary head. The spherical head cannot be mounted with infrared light.
4. Since the spherical head has no mechanical wiper, if you must use the wiper function, you can only use the ordinary head and the wiper cover.
Second, the failure of the gimbal <br> A gimbal is not working well or can not be rotated shortly after use. It is a common failure of the gimbal. The emergence of this situation, in addition to the factors of product quality, is generally caused by the following reasons:
1. Only the gimbal that is installed in the camera is allowed to be hoisted during use. In this case, the hoisting method leads to an increase in the operating load of the gimbal, so that the use of the gimbal's rotating mechanism may be damaged or even burned out.
2. The total weight of the camera and its protective cover exceeds the weight of the gimbal. Especially for the outdoor use of the gimbal, the weight of the protective cover is often too large, and the problem that the gimbal can not turn (especially in the vertical direction) often occurs.
3. The outdoor cloud platform is faulty or even damaged due to excessive ambient temperature, low temperature, poor waterproofing and antifreeze measures.
2. When the distance is too far, the operation keyboard cannot remotely control the camera (including the lens) and the pan/tilt through the decoder.
This is mainly because when the distance is too far, the control signal is attenuated too much, and the control signal received by the decoder is too weak. At this time, a relay box should be added at a certain distance to amplify the shaping control signal.
3. The image contrast of the monitor is too small and the image is light.
This phenomenon is not a problem with the control host and the monitor itself, that is, the transmission distance is too far or the video transmission line is attenuated too much. In this case, the line amplification and compensation device should be added.
4, the image clarity is not high, the details are lost, serious color signal loss or color saturation is too small.
This is due to the excessive loss of the high frequency end of the image signal, which is caused by the substantial loss of signals at frequencies above 3 MHz. In this case, the transmission distance is too far, and there is no amplification compensation device in the middle; or because the distributed capacitance of the video transmission cable is too large; or because of the concentrated distribution of the equivalent capacitance between the core wire and the shield wire of the transmission line in the transmission link Caused.
★ Hue distortion.
This is a phenomenon that is prone to occur in long-distance video baseband transmission. The main reason is caused by the high phase shift of the signal caused by the transmission line. In this case, a phase compensator should be added.
★ The operating keyboard is out of order.
This phenomenon can basically be determined by operating the keyboard "dead" when checking the connection without problems. In the operation instructions of the keyboard, there are generally methods for solving the "dead", such as "full machine reset", etc., which can be solved by this method. If it can't be solved, it may be that the keyboard itself is damaged.
★ The host does not switch the image cleanly.
The phenomenon of such a failure phenomenon is that on the screen after the selection, interference of other pictures is superimposed, or interference of line synchronization signals of other images is superimposed. This is because the host or matrix switch is of poor quality and does not meet the isolation requirements between images.
Yuntai is generally divided into ordinary and spherical heads. Ordinary pan/tilt is a bare-type pan/tilt head. When installing a camera, a camera cover is required. The ball-type pan-tilt is a built-in pan/tilt head with a global or hemispherical shield. Therefore, the ball-type pan/tilt has a beautiful appearance compared with the ordinary pan/tilt. Concealed and easy to install.
1. Separate indoor and outdoor installation. The outdoor cloud platform has better water resistance, corrosion resistance, constant temperature and impact resistance than the indoor cloud platform, so as to adapt to the complex outdoor climatic conditions, its weight and carrying capacity are also greater than the indoor cloud platform.
2. According to special environmental requirements. Such as hotels, residential areas, government agencies, office buildings and other places, generally require a higher degree of concealment after the installation of the product, and therefore more use of the spherical head. It should be noted that since the indoor hemisphere head is required to be embedded in the ceiling, it cannot be installed if the top of the wall cannot be hollowed out.
3. If you add an infrared light to your camera, you must use an ordinary head. The spherical head cannot be mounted with infrared light.
4. Since the spherical head has no mechanical wiper, if you must use the wiper function, you can only use the ordinary head and the wiper cover.
Second, the failure of the gimbal <br> A gimbal is not working well or can not be rotated shortly after use. It is a common failure of the gimbal. The emergence of this situation, in addition to the factors of product quality, is generally caused by the following reasons:
1. Only the gimbal that is installed in the camera is allowed to be hoisted during use. In this case, the hoisting method leads to an increase in the operating load of the gimbal, so that the use of the gimbal's rotating mechanism may be damaged or even burned out.
2. The total weight of the camera and its protective cover exceeds the weight of the gimbal. Especially for the outdoor use of the gimbal, the weight of the protective cover is often too large, and the problem that the gimbal can not turn (especially in the vertical direction) often occurs.
3. The outdoor cloud platform is faulty or even damaged due to excessive ambient temperature, low temperature, poor waterproofing and antifreeze measures.
2. When the distance is too far, the operation keyboard cannot remotely control the camera (including the lens) and the pan/tilt through the decoder.
This is mainly because when the distance is too far, the control signal is attenuated too much, and the control signal received by the decoder is too weak. At this time, a relay box should be added at a certain distance to amplify the shaping control signal.
3. The image contrast of the monitor is too small and the image is light.
This phenomenon is not a problem with the control host and the monitor itself, that is, the transmission distance is too far or the video transmission line is attenuated too much. In this case, the line amplification and compensation device should be added.
4, the image clarity is not high, the details are lost, serious color signal loss or color saturation is too small.
This is due to the excessive loss of the high frequency end of the image signal, which is caused by the substantial loss of signals at frequencies above 3 MHz. In this case, the transmission distance is too far, and there is no amplification compensation device in the middle; or because the distributed capacitance of the video transmission cable is too large; or because of the concentrated distribution of the equivalent capacitance between the core wire and the shield wire of the transmission line in the transmission link Caused.
★ Hue distortion.
This is a phenomenon that is prone to occur in long-distance video baseband transmission. The main reason is caused by the high phase shift of the signal caused by the transmission line. In this case, a phase compensator should be added.
★ The operating keyboard is out of order.
This phenomenon can basically be determined by operating the keyboard "dead" when checking the connection without problems. In the operation instructions of the keyboard, there are generally methods for solving the "dead", such as "full machine reset", etc., which can be solved by this method. If it can't be solved, it may be that the keyboard itself is damaged.
★ The host does not switch the image cleanly.
The phenomenon of such a failure phenomenon is that on the screen after the selection, interference of other pictures is superimposed, or interference of line synchronization signals of other images is superimposed. This is because the host or matrix switch is of poor quality and does not meet the isolation requirements between images.
Grass Ttrimmer is an kind of garden tool for the maintenance of lawns under shrubs and bushes,along walls and in other inaccessible places.The cutting implement is usually a quickly rotating nylon cord which can be adjusted in length when worn.
String Trimmers,Grass Trimmers,Brush Cutters,Small Grass Trimmers
AWLOP CO.,LTD , https://www.awlop.com