天津市监控公司

摄像机在出图像后要注意机器的照射角度。有的客户在安装好后白天看着都挺好，晚上则会出现画面黑暗、一半白一般黑、中间亮四周黑等情况，这些都和角度有关系，我们在安装的时候要避免镜头抬得太高，壁装的机器不要有超过1/4的白墙出现在画面里，镜头的选择要适当(比如3.6mm和4mm照射6-8米，6mm适合于12-14米，8mm适用于20-30米的距离)，如果实在记不住镜头如何选择，这里教大家一个简单的方法就是镜头毫米数乘以2来选择，然后根据环境具体问题具体分析。前端部分这样子做一般装出来的效果都不会差。

The camera should pay attention to the angle of the machine after the image is out of the image. Some customers after installation during the day at night and screen will appear dark, half white black, black and bright around the middle, they have a relationship and point of view, we should avoid the camera too high at the time of installation, wall mounted machines don't have more than 1/4 of the white walls appear on the screen in the choice of lens should be appropriate (such as 3.6mm and 4mm irradiation for 6-8 meters, 12-14 meters for 6mm, 8mm for a distance of 20-30 meters), if you can not remember how to choose the camera, here to teach you a simple way to 2 mm lens is multiplied by the number of choices, and then according to the concrete analysis of concrete problems. The front end part will not have a bad effect in general.

问题六：传输部分有哪些注意事项?

Question six: what are the points for attention in the transmission section?

选择高质量线材减少返工。其实最麻烦也是很重要的环节就是在传输部分，无论网线也好，光纤也罢，选材材质太差或使用不当都会有很多问题。

Select high quality wire to reduce rework. In fact, the most troublesome and important link is in the transmission part, whether the cable or optical fiber, material selection is too bad or improper use will have many problems.

问题七：安装数量较多的摄像机掉线，如何排除故障?

Question seven: how to remove the fault by installing a large number of cameras to drop off the line?

安装数量较多的摄像机如果掉线了，要观察是只有某一个掉还是乱换着掉线或者是某一个交换机上面的几个都掉，如果是只有经常性的某一个掉，可能是机器有问题，可升级或者恢复系统试下;如果不定时不定点的掉则是交换机资源不足，建议更换千兆交换机(主要推荐TP-link、D-link、华为、华3)，如果某个交换机上面几个一起掉则要考虑交换机和线路的问题了。

The camera is installed a large number if dropped, to observe is only one off or change a dropped one or several switches above all, if one falls only often, may be the machine problem, can upgrade or restore the system under test; if not fixed from time to time the switch off is the lack of resources, proposed to replace the Gigabit switch (mainly TP-link, D-link, recommended HUAWEI, China 3), if a switch above fell to consider the switch and the problem line.

问题八：接入前端IPC时的注意事项有哪些?

Question eight: what are the points for attention when the IPC is connected to the front end?

对于监控面积较小的场所，只装2-3个IPC的情况下，客户喜欢直接接到路由器上面，然后电脑装软件来显示，使用电脑显示的不建议超过3个。

For a small area with only 2-3 IPC installed, customers prefer to connect directly to the router. Then the computer software is installed to show that no more than 3 computers are displayed.

使用录像机的不太建议满载，一是怕出现占用录像机过多的资源，二是万一用户以后想增加，如果之前接满了就需要更换后端设备了，也避免了浪费，当然这些事先都是需要和客户讲明白的。存储上面，本人比较倾向于希捷的监控专用硬盘，现在监控专用盘和台式电脑的机械盘价格相差无几，专用盘一是更稳定，二是质保时间多一年，何乐而不为呢。

Use recorder do not recommend full, one is afraid of video appeared to take up too much of the resources, the two is if you later want to increase, if filled with need to replace the back-end equipment, but also to avoid the waste of course, these are in advance of customers and explain. On the top of storage, I prefer Seagate's monitoring hard disk. Now, monitoring the price of special disk and desktop computer disk is almost the same. The private disk is more stable, and the two is quality assurance time more than one year. Why not?

总之，安装人员也要快速了解设备，一个新机器到手后要接上去尽可能的了解每一个功能，专业专注，好的卖家必定得是个好的技术员或者是个理论上的技术员。在安装一套监控设备时，我们首先要把握环境及数量，不论大小工程，每一个都当成样板工程，尽心尽力做好，信誉是这样累积的，客户也是这样积累的，品牌的价值也是这样提升的。

In short, the installation personnel should quickly understand the equipment. When a new machine comes to hand, it should be connected to understand every function as much as possible. Professional, dedicated, good seller must be a good technician or a theoretical technician. When installing a set of monitoring devices, we first need to grasp the environment and quantity, regardless of size and engineering, every one as a sample project, do everything we can to achieve this goal, reputation is accumulated, customers are also accumulating, and the value of brand is also improved.