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Step1: The network is channel can only see
Otaku men and women are buying online shopping options, then monitoring cameras online shopping can not? Answer: Do not fly. Everyone knows that this surveillance camera is not an ordinary consumer product. Even if some of the parameters are clearly marked, you may see the cloud in the fog; in fact, you can easily spend 10 minutes online to understand the main parameters, Xiaobian negative Responsible to tell everyone, CCD, visual TVL value (line number), image effective pixels, low illumination and wide dynamic parameters are very important Oh, the rest of the content you have to bother yourself, we go to the electronic store to buy product.
Step2: Shop around to ask the price to be professional
Buying a monitor at an electronics store is the same as buying a mobile phone. Of course, you have to shop around. Although monitoring of this thing is not something that the average person can use, but you must not be pitted by blackhearted businesses. Walk around and ask the market price so that you have a spectrum.
Asking the price is critical, and your first sentence is critical. People buy mobile phones to say how much money the Samsung XX model, in the monitoring area you have to press the lens, for example, the lens 8mm how much money. Of course, you don't misunderstand that surveillance cameras are divided by camera. In fact, it also has its own number, but these numbers are too long, and businesses are too lazy to remember.
Surveillance cameras distinguish different price points based on the lens, chip, and night vision effects. Of course, there are differences in the prices of the dome camera and the bolt camera. This is like comparing a cross-country vehicle to an ordinary car. At this point in the inquiry process, businesses will ask you where to use, they will tell you choose different monitoring products based on where you apply, this is the process of absorption and learning. (Quick fix takes 10 minutes)
Step3: Select Surveillance Camera from Surveillance Image
If you do not want to be plagued by complicated parameters, then do a field test directly in the store. We have selected several cameras and decided to use the image effect reflected by the monitor. The color reproduction degree, monitoring distance, monitoring angle, etc. must be debugged. If it is a camera that supports zooming, then it is also necessary to see if it has the function of auto focus.
Here, Xiao Bian adds a knowledge to you. For a general fixed-focus lens, the monitoring distance has a certain relationship with the viewable angle. Xiao Bian will once again list this unforgettable table and tell it most directly. Everyone, your choice seems limited. But with the buyer's experience telling you, the average 8mm lens is a standard that most users will choose. One hammer deal? You must observe 呦~~ (20 minutes)
Step4: Carefully monitor the tricky solution
Then the topic above, in the process of inquiry, which owner's price to feel reliable, you can do further communication. At this point, the merchant will ask you for your needs, monitor where it will be installed, need to control several points, and so on. At this point there will be a small trap, businesses will often re-customize a set of programs according to your needs, and at this time may be the surveillance camera you previously asked not in this program will instill in you DVR, monitors and other equipment, then It is necessary to pay attention to whether he will use the package to increase prices.
Anti-monitoring business traps need to deal with the three major ways to deal with 1: Addition and subtraction with businesses
When you put forward a plan, he thinks that you need to increase the surveillance camera. Then you have to try to subtract the camera. According to Xiao Bian's experience, generally adding a cloth control point at the gate or important position, then you can replace the two monitoring probes with one ball machine, solve the monitoring angle problem, and do not need to pay additional engineering costs You can know that the labor cost in the project is based on the number of probes.
Coping Method 2: If you can, then the province will be built on the basis of technology
For personal or home monitoring applications, do not use complicated wiring. At the same time, the distance between the DVR and each probe is the same as much as possible. This guarantees the stability of the monitoring system and does not require the monitoring probe. The establishment of an independent power supply is not safe enough for rain. Now the small-scale monitoring system uses the PoE module to complete, the local area power supply system can not only provide the front end electricity quantity but also can transmit the video data to the back-end DVR.
Coping method 3: DVR is a must, monitor hard disk 45 yuan price difference can not save
DVR is the core of control of the entire monitoring system, and its significance goes without saying. Set up, view, copy video and video have to rely on it to complete, for the inside of the hard drive, the current storage market, the single-disk 1TB monitor-class hard drive is only 45 yuan more expensive than the same brand of ordinary home 1TB hard drive (July price), in the future to ensure data security in the stability of the system, spend 45 dollars or buy a peace of mind.
Three Ways to Deal with the Pitfalls of Anti-monitoring Businesses
For monitoring hard disks, an important feature is the data writing speed and the ability to cope with the transmission of big data. Xiao Bian’s colleagues have measured a single-disk 1TB monitor-class hard disk, and its sustained writing speed reaches 156 MB/s. Its maximum write speed is 196.3MB/sec, and its large-capacity data transmission speed is as high as 179.1MB/sec. Obviously, the advantages of this surveillance hard disk are not just a little.