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Question one: How high is the camera installed?
Under normal circumstances, when communicating with customers, it is recommended that the customer's room should not be less than 2.5 meters indoors and not less than 3.5 meters outdoors. Although these figures are simple but take into account the height of the room and the angle of the lens pressure, but also consider the outdoor The length of the illumination when installed and the factors that prevent vandalism.
Question 2: What are the recommendations for stent installation?
When installing the camera, there are two options for wall mounting and lifting. There are many indoor bad environments for supermarkets. The wall is generally selected outdoors. The general and lightweight machines such as JVS-N81-HY in Zhongwei Century can use the 04, 05, 508 and other types of brackets, but in the use of 4 light machines such as JVS-N81-HY-S, JVS-N81 -Bac These larger and heavier machines suggest that customers use at least the 508 bracket. The weight of the camera must be taken into account. This prevents the camera from tilting or falling for long periods of time.
Question 3: What appearance machine should be selected for indoor and outdoor use?
Different machines for the environment should also be different.
(1) Better interior decoration
Such as indoor coffee shops, boutiques, hotels and other similarly decorated environment, for aesthetic reasons should consider the small robot camera, so it looks more beautiful. Here, Zhonghui recommends a small camera for indoor use that is beautiful, practical and generous.
(2) Special places for indoor environment
However, some food and oil stores, hardware stores, hot pot restaurants and the like are also indoor, but they must choose a bolt machine, which can effectively prevent dust, water vapor, fumes, etc. from entering the machine and affecting the use of the machine.
(3) outdoor environment
For the outdoor environment, of course, the bolts and domes are more capable of highlighting their powerful defensive functions, and their normal functioning can be ensured on a windy and rainy day. Starlight-class smart HD cameras, for example, are currently used in outdoor scenes.
Question 4: What are the recommendations for using the power supply?
The use of power, personal recommendations no matter what machine should use foot safety power supply, the price is a bit high, but this type of power supply is stable, rarely after-sales problems.
Question 5: What are the reference suggestions for camera illumination?
The camera should pay attention to the irradiation angle of the machine after the image is output. Some customers looked good during the day after installation. At night, darkness, half white and half darkness, and middle light and darkness occurred. These are all related to angles. We must avoid the lens lift during installation. Too high, wall mounted machines do not have more than 1/4 of the white walls appear in the picture, the lens selection should be appropriate (such as 3.6mm and 4mm irradiation 6-8 meters, 6mm is suitable for 12-14 meters, 8mm is suitable for 20 -30 meters distance) If you really can't remember how the lens is selected, here's a simple way to teach it. It's a matter of selecting the lens millimeter times 2 and then analyzing it according to the specific problems of the environment. The general effect of the front-end part is not bad.
Question 6: What are the precautions in the transmission section?
Selecting high quality wire reduces rework. In fact, the most troublesome and very important link is in the transmission part. Whether it is a cable or optical fiber or poor material selection or improper use, there will be many problems.
Case 1: A customer previously used a little more than 100 network cables to pull a hundred and thirty meters when installing, resulting in an IPC that was not searchable by the NVR. The customer told the technicians that there was a problem with the machine. The technician asked him where he was installing, what line he was using, how many meters he was pulling, and then asked him to change lanes. He changed the grade one line and found that the tail light flashed slowly. The image was replaced by a better oxygen-free copper wire. Therefore, the wire is not good, resulting in their own rework to do it again, time-consuming and ultimately unable to achieve the purpose of saving money.
Case 2: The transmission part has encountered a very difficult case. At the end of 2014, a customer installed a factory monitoring system using JVS-ND7032-HZ and N71-HD-S. The customer pulled two optical fibers to two workshops, each using two pairs of light six. The transceiver of the electricity, when it is installed, is good, and then the four heads of a certain transceiver are disconnected from time to time. Every day, two or three hours are lost and they will connect themselves. The camera position is changed and the power supply is changed. , In addition to the fiber did not move, the replacement of the entire replacement of the adjustment will not work, and finally there is no way, the technology think of a way to add a switch in another normal transceiver, cited a line to the transceiver in question Above, the old line was abandoned, and the result was good! Even though it was troublesome, it was solved. Who can think of the test of good optical fiber actually has a problem?!
Question 7: How to troubleshoot if the camera with a large number of cameras is dropped?
If a camera with a large number of cameras is installed, if it is dropped, it is necessary to observe whether only one of the cameras is out of order, or if the switch is out of order, or if several switches on a switch are lost. If there is only one outage, the machine may have Problems can be upgraded or restored to the system under test; if the timing is not fixed, switch resources are insufficient. It is recommended to replace the gigabit switch (mainly recommended TP-link, D-link, Huawei, Huawei 3), if a switch above If you lose a few together, you have to consider the issue of switches and lines.
Question 8: What are the precautions when accessing the front-end IPC?
For a site with a small monitoring area, if only 2-3 IPCs are installed, the customer prefers to directly connect to the router, and then the computer installs software to display it. The use of the computer does not recommend more than three.
The use of video recorders is not fully recommended. One is the fear of occupying too much videotape resources, and the other is that if the user wants to increase later, if they are full before they need to replace the back-end equipment, and avoid waste, of course, these are It is necessary to speak with the customer. Above, I prefer Seagate’s surveillance dedicated hard drives. Now the prices of mechanical disks for monitoring dedicated disks and desktop computers are almost the same, the special disks are more stable, and the warranty time is one year longer. Why not?
In short, the installer must also quickly understand the equipment. After a new machine arrives, it should be connected to understand as much as possible every function. Professional focus, a good seller must be a good technician or a theoretical technician. When installing a set of monitoring equipment, we must first grasp the environment and quantity, regardless of the size of the project, each as a model project, do its utmost to do a good job, the credibility is so accumulated, the customer is also accumulated, the brand's value is also to enhance of.