With the continuous improvement of the requirements of video surveillance products for customers, demanding perfection, stability, and performance, and at the same time demanding more clarity and accuracy, HD video surveillance is destined for the final trend. At the same time, in public places, how does the monitoring look at the basic facial features of a person to identify? In traffic flow, how do you look at the license plates of high-speed vehicles for recording? These are the basic requirements for high-definition video surveillance products.
In recent years, more and more manufacturers have begun to introduce "high-definition" products. In the internal control industry for high-definition ambiguous understanding also, for example, we often hear the concept of security products in high definition, in fact, resolution up to D1 or 4CIF product, which is for analog surveillance cameras, the new generation In digital surveillance cameras, only 720p resolution can be considered high definition, while 1080P is called full HD, which is the highest specification in current video surveillance.
In the field of video conferencing, the industry’s first 720P product was launched in 2006 and later the first 1080P product. Today, high-definition has long been fully applied and has become the main force in the current market. In the field of video surveillance, HD is only just starting to be affected by various factors. At present, it is only applied to very limited public areas. However, since HD is the key to the most effective improvement of video quality, HD surveillance will inevitably become a decisive milestone in the development of video surveillance. In order to realize the era of high-definition surveillance, we still have a long way to go. There are several necessary paths we must recognize. clear:
Networking: the basis for achieving high-definition monitoring
Why high-definition monitoring must be based on networking? First, high-definition surveillance video signal transmission is a major problem. The traditional VGA, DVI, and HDMI transmission distances are too short to be suitable for monitoring transmission. HD-SDI can be used The transmission is about 100 meters, but the demand for the cable is very high, and the converted price is very alarming. In this way, the high-definition surveillance will have to find another way in signal transmission compared to traditional surveillance, and the network is just making up for this.
A video signal output directly digitized camera sensor, DSP or ASIC then this digital HD video signal is directly compression-encoded, and then transmitted to the network mode, the camera than the direct output HD signal by the camera is more economic, more efficient and the process High, so when using video compression coding and transmitting over IP networks, the difference in transmission costs between HD video and SD video is small.
Megapixel HD Camera: Prerequisites for HD Monitoring
Why must we choose megapixels high-definition cameras and uncompromising analog HD video camera? With the development of the digital age, analog products has come to the edge of elimination, compared with the digital high-definition products, simulation technology seemed full of loopholes and architecturally difficult There is a qualitative breakthrough in resolution/frame rate, even in the field of professional analog monitoring, the top analog camera also has 625 scan lines. Looking at the current megapixel network camera can easily reach more than 1000 lines, and there is no limit to the number of pixels that can be developed with the technology. Therefore, the high-definition cameras used for monitoring on the market are network cameras.
HD network camera definition refers to a network camera that maintains a 12-frame acquisition speed and has a resolution greater than 720p. That is to say, the 720P standard that we mentioned above in the definition of high definition can only be understood as a megapixel level. Therefore, the HD network cameras we are talking about in this era are all megapixel network cameras.
Rely on NVR: Guarantee for High-Definition Monitoring
Some people say that DVR is still the current mainstream even if NVR develops so rapidly. But what I want to say is that to achieve high-definition surveillance, the evolution of DVRs to NVRs is the way to go. When it comes to high-definition surveillance, DVRs will no longer exist.
As we all know, in the era of digital surveillance, the front end is an analog camera. The centralized access, processing, video storage, local browsing and image playback of analog cameras are performed by DVRs. In the era of network monitoring, the front-end became a network camera, and only the NVR can do similar centralized access, management, video storage, and local browsing and playback of the network camera.
Of course, what we are saying here is that the current scheme NVR is more suitable and can be used as a guarantee for high-definition surveillance. NVR focuses on the network, but the network is only a means of video transmission. The future transmission modes are various. At present, there is no good solution that is more suitable for HD monitoring than NVR, but maybe USB can be realized in the future, so HD is considered as video monitoring. The trend of development while NVR is not.
Crossing High Prices: HD Mountain Monitor
There is an important obstacle that HD surveillance needs to overcome in order to replace SD, that is, how to ensure the integrity of the solution at a low cost. For the customer, high-definition is the true high-definition in the front-end acquisition coding, video storage, video wall decoding, client browsing and other aspects to achieve high-definition, but at present all high-definition products only stay at the front, that is, high-definition network cameras, The reason is that China has already mastered the core technology of digital high-definition cameras more comprehensively, and has begun to localize. The price has a significant downward adjustment, but the management, storage, and decoding of the back-end cannot be fully promoted.
At present something to a high-definition network monitoring platform system, the price is more expensive, high-definition surveillance system once the network is established, the price threshold will be up to your part of it, is not an ordinary user can afford, the price will become the high-definition network monitoring applications The highest threshold. At present, only industrial users with strong HD demand are basically not very sensitive to prices. They are really concerned about quality. From any new technology development, we can see such laws, demand, and technical feasibility. Start prices. high, with the industrialization and industrial popularity, prices will gradually decline until a new technology completely replace old technology to become mainstream, it is now time standard definition monitor forward conversion of high-definition monitor, so the price is to achieve a high-definition monitor shackles.
In recent years, more and more manufacturers have begun to introduce "high-definition" products. In the internal control industry for high-definition ambiguous understanding also, for example, we often hear the concept of security products in high definition, in fact, resolution up to D1 or 4CIF product, which is for analog surveillance cameras, the new generation In digital surveillance cameras, only 720p resolution can be considered high definition, while 1080P is called full HD, which is the highest specification in current video surveillance.
In the field of video conferencing, the industry’s first 720P product was launched in 2006 and later the first 1080P product. Today, high-definition has long been fully applied and has become the main force in the current market. In the field of video surveillance, HD is only just starting to be affected by various factors. At present, it is only applied to very limited public areas. However, since HD is the key to the most effective improvement of video quality, HD surveillance will inevitably become a decisive milestone in the development of video surveillance. In order to realize the era of high-definition surveillance, we still have a long way to go. There are several necessary paths we must recognize. clear:
Networking: the basis for achieving high-definition monitoring
Why high-definition monitoring must be based on networking? First, high-definition surveillance video signal transmission is a major problem. The traditional VGA, DVI, and HDMI transmission distances are too short to be suitable for monitoring transmission. HD-SDI can be used The transmission is about 100 meters, but the demand for the cable is very high, and the converted price is very alarming. In this way, the high-definition surveillance will have to find another way in signal transmission compared to traditional surveillance, and the network is just making up for this.
A video signal output directly digitized camera sensor, DSP or ASIC then this digital HD video signal is directly compression-encoded, and then transmitted to the network mode, the camera than the direct output HD signal by the camera is more economic, more efficient and the process High, so when using video compression coding and transmitting over IP networks, the difference in transmission costs between HD video and SD video is small.
Megapixel HD Camera: Prerequisites for HD Monitoring
Why must we choose megapixels high-definition cameras and uncompromising analog HD video camera? With the development of the digital age, analog products has come to the edge of elimination, compared with the digital high-definition products, simulation technology seemed full of loopholes and architecturally difficult There is a qualitative breakthrough in resolution/frame rate, even in the field of professional analog monitoring, the top analog camera also has 625 scan lines. Looking at the current megapixel network camera can easily reach more than 1000 lines, and there is no limit to the number of pixels that can be developed with the technology. Therefore, the high-definition cameras used for monitoring on the market are network cameras.
HD network camera definition refers to a network camera that maintains a 12-frame acquisition speed and has a resolution greater than 720p. That is to say, the 720P standard that we mentioned above in the definition of high definition can only be understood as a megapixel level. Therefore, the HD network cameras we are talking about in this era are all megapixel network cameras.
Rely on NVR: Guarantee for High-Definition Monitoring
Some people say that DVR is still the current mainstream even if NVR develops so rapidly. But what I want to say is that to achieve high-definition surveillance, the evolution of DVRs to NVRs is the way to go. When it comes to high-definition surveillance, DVRs will no longer exist.
As we all know, in the era of digital surveillance, the front end is an analog camera. The centralized access, processing, video storage, local browsing and image playback of analog cameras are performed by DVRs. In the era of network monitoring, the front-end became a network camera, and only the NVR can do similar centralized access, management, video storage, and local browsing and playback of the network camera.
Of course, what we are saying here is that the current scheme NVR is more suitable and can be used as a guarantee for high-definition surveillance. NVR focuses on the network, but the network is only a means of video transmission. The future transmission modes are various. At present, there is no good solution that is more suitable for HD monitoring than NVR, but maybe USB can be realized in the future, so HD is considered as video monitoring. The trend of development while NVR is not.
Crossing High Prices: HD Mountain Monitor
There is an important obstacle that HD surveillance needs to overcome in order to replace SD, that is, how to ensure the integrity of the solution at a low cost. For the customer, high-definition is the true high-definition in the front-end acquisition coding, video storage, video wall decoding, client browsing and other aspects to achieve high-definition, but at present all high-definition products only stay at the front, that is, high-definition network cameras, The reason is that China has already mastered the core technology of digital high-definition cameras more comprehensively, and has begun to localize. The price has a significant downward adjustment, but the management, storage, and decoding of the back-end cannot be fully promoted.
At present something to a high-definition network monitoring platform system, the price is more expensive, high-definition surveillance system once the network is established, the price threshold will be up to your part of it, is not an ordinary user can afford, the price will become the high-definition network monitoring applications The highest threshold. At present, only industrial users with strong HD demand are basically not very sensitive to prices. They are really concerned about quality. From any new technology development, we can see such laws, demand, and technical feasibility. Start prices. high, with the industrialization and industrial popularity, prices will gradually decline until a new technology completely replace old technology to become mainstream, it is now time standard definition monitor forward conversion of high-definition monitor, so the price is to achieve a high-definition monitor shackles.
Basically there are two types of Diameter Tape Measure, one is Pipe OD Tape Measure Diameter Circumference, another is ID (Inner Diameter) PP Tape Measure
Pipe OD Tape Measure Diameter Circumference
Product Description:
The 2-meter Pipe OD Tape Measure Diameter Circumference is made of reliable material to satisfy precise diameter measuring requirement.The reading for the perimeter, accurate to 1 mm. The tape is double sided with circumference (measures in cm & inch) and diameter (measures in inch & inch) on the either part. Pipe od tape measure adopts fiberglass tape to deliver water and stain proof effect and to ensure that it is of good elasticity for diameter measuring. The retracting mechanism is built in the durable ABS case, thus service life is extended. Wintape provides the diameter tape measure with other patterns and offers customized logo for you.
ID (Inner Diameter) PP Tape Measure
Product Description:
Inner diameter tape measure is made of PP material that is of excellent stress tensile strength and high elasticity. The scale numbers are already been calculated so the tape gives you the result directly without calculating. The practical ID measuring tape can be adopted in various ways such as pipe and container measuring. The double sided inner diameter measuring tape makes number reading easier and more convenient.
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