Anti-Explosion Crawling Robot Inspection Camera is patent belong to Zhengzhou JiuTai Technology Co.ltd
it is used widly to inspection the gas pipe , oil pipe, oil truck, and any other pipe that requirement anti- explosion.
besides anti-explosion, it also anti-dust,anti-corrosion,anti-static,anti-proof, anti-rollover.
The crawling endoscope Borescope Inspection Camera Municipal Pipeline Inspection Petrochemical Pipeline Inspection Oil Pipeline Inspection Wind Power Inspection Camera
has many control function , Flexible and practical functions, Main parts of the motor are imported from Germany.
Anti-explosion Crawling Robot Inspection Camera Inspection Camera,Anti-Explosion Crawling Robot Inspection Camera,Anti-Explosion Robot Inspection Camera,Crawling Robot Inspection Camera ZHENGZHOU JIUTAI TECHNOLOGY CO.,LTD , https://www.jiutaiendoscope.com
The front end of the analog camera uses an interlace sensor, while the front end of the HD network camera uses a progressive sensor. Progressive scanning is better than interlaced scanning when moving objects are monitored. The analog signals of CCTV cameras are susceptible to external electromagnetic interference in the transmission process, which causes the picture quality to be affected, while the quality of the digital signal transmission of the HD network cameras is not affected. Another inherent defect of the CCTV camera is that the color signal and the luminance signal are easy to crosstalk, which causes the screen to appear color patches and affect the image quality.
Compared with traditional CCTV cameras that transmit analog signals through network cameras, there are currently USB camera network cameras and network cable transmission. There are two kinds of network cameras for historical reasons, and one is based on CCTV analog signals. The digital signal is then transmitted over the network. This camera has many of the same features and defects as CCTV cameras. It is a transitional product and will soon be eliminated. The other is the modulation and demodulation without any formality, but it is directly compressed and processed. With network output. The HD network camera specifically refers to this type of camera. A traditional CCTV camera is subject to the limitation of the maximum resolution and the highest bit D1, and the resolution of the HD network camera is not limited by a definite system (megapixel USB camera is already common in the computer market. Low price. And millions of HD network cameras are being used in security monitoring).
1. What is the effect of high-definition network cameras with low illumination?
A: HD network cameras and analog cameras, the front-end sensor can be CCD or CMOS. General HD network cameras have more pixels than analog cameras. Under the same production technology, if a megapixel HD network camera is to achieve the same low illumination effect as an analog camera, a larger size photoreceptor must be used. Each pixel receives more light, and the low-light effect is correspondingly better.
2. Does the current network bandwidth affect the application of millions of digital HD cameras?
A: At present, 25 frames of real-time 720P high-definition compressed video stream is 500K-3Mbps. Analog cameras have lower pixels, but they do worse because of noise control, which will result in bitstreams that are comparable to higher resolution HD network cameras. . Security engineering companies generally have experience, and the difference between the clean picture and the noise-intensive picture compression is very large, even up to tens of times. Therefore, the same scene digital 720P compression is equivalent to analog D1 compressed code stream. The compressed picture quality is much higher than that of the D1 picture quality. HD network cameras generally support dual stream and local HD channel recordings, while distant locations can choose to use CIF resolution or million HD remote monitoring according to the bandwidth conditions. Therefore, network bandwidth is no longer a problem.
3, the front end of the HD network camera can use ordinary camera lens?
A: It is not recommended. The greatest advantage of the HD IP Camera is its high definition. However, in addition to the camera itself, the resolution needs a lens. The general HD network camera is equipped with a megapixel lens instead of a normal lens.
4. How large is the occupancy of the megapixel HD IP camera to the hard disk?
Answer: Taking 720P resolution as an example, each channel can generally control below 1G per hour. (If the motion strongly consumes the high point of the hard disk, if the amount of motion of the screen plus the HD network camera can make the noise smaller, then it can be less than 300M)
5, HD network cameras replace analog cameras?
　　
A: The picture quality of HD network cameras has completely overwhelmed the analog cameras. The existing CCTV analog camera technology is very mature and the cost can be very low, even lower than 100 yuan. HD network cameras are launched later and the cost is higher than that of analog. Cameras, but with the current low price of megapixel USB cameras, it is clear that future digital HD camcorders may cost close to analog cameras. The ultimate realization of high-definition network cameras replace analog cameras.
6. What characteristics should be paid attention to and investigated when purchasing HD network cameras?
A: Excellent HD network camera products, in addition to clear picture quality, should also pay attention to stream, cost, color reproduction, light sensitivity, easy operation, compatible with a variety of supporting back-end equipment and into a series of IPC (infrared, hemisphere, High-speed ball, bolt machine).
7, the definition of high-definition network camera is better?
A: The higher the sharpness, of course, the more customers like it, but the higher definition is the cost of streaming, and it is also contradictory to low illumination. In today's situation where D1 has not yet been widely popularized, megapixel or so megapixel network cameras are more suitable for monitoring reality, while multi-megapixel HD network cameras are used in a few special places.
8, using high-definition network cameras, wiring difficulty and how?
　　
Answer: HD network cameras can transmit video signals, audio signals, control signals and power at the same time on one network cable, and replace the four wires on one line, which greatly reduces the cost and difficulty of wiring. It is also worth mentioning that if the data line and power line multiplexing technology are used, then one can transmit 2 video, 2 audio, 2 control and 2 power supplies. (here refers to the end of the connection camera), in addition to the network fiber switch price lower than the optical transceiver.
9. What are the main video recording devices for HD network cameras?
Answer: There are mainly: PDVR (Pure Digital Video Recorder), HybridDVR (Hybrid DVR), NVR and PC.
10. What is the price of HD network cameras?
A: The hardware cost of HD network cameras will be closer and closer to that of analog cameras, and the natural price will be closer and closer to analog cameras. At present, the price of high-definition network cameras can be comparable to that of high-end analog cameras, but the picture quality is much higher than that of high-end analog cameras, and the price competitiveness is very strong. The quality of high-quality high-definition network cameras abroad is relatively good, but the price is very high, and they still have considerable demand for some high-end customers.
11. If a high-definition network camera is connected to a PC computer, does it require high-end computers?
A: It will not be very high, because the video compression of the HD network camera is performed inside the camera. The video arriving at the PC is already the algorithm-compressed video. No computer CPU is required to continue the compression. If it is not displayed, the video is stored directly. Hard disk, which is very low on the computer. When it is necessary to display multiple channels simultaneously, it is necessary to decompress the CPU, but decompression consumes far less CPU resources than compression.
12. Will the modification of traditional analog surveillance into a megapixel HD network camera solution cost a lot?
A: After many times of designing, budgeting, and summarizing of our million-megapixel high-definition engineering projects, we often encounter a decrease in the cost of modifying analog surveillance into millions of surveillance. This greatly exceeded the expectations of many engineering companies, and also surprised many contractors and A-side customers. Many engineering companies mistakenly thought that the high cost of millions of projects is not necessarily a matter of fact. It should be known that although the price of HD network cameras may be higher than that of analog cameras Expensive, but it can save costs in terms of wiring costs, construction costs, PC configuration, and supporting transmission equipment (such as high-price optical transceivers replaced with low-cost fiber switches), camera number, etc. In the end, the phenomenon that the production cost of millions of HD projects is comparable to or even lower than that of traditional simulations, and the effect is very different.