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如何解决视频线与强电之间的干扰?

来源:http://www.vranime.net/  点击?#38382;?span id="hits">    发布时间:2018-01-18
一般保安服务公司运用的照明电的电压是220V,而许多工厂的设备的作业电压都到达380V,如果照明用的电线跟视频线一同布线,影响比较小,一般没有什么大问题;可是,如果跟380V电线一同布线,视频信号将遭到严峻的搅扰,就算是通过380V这样的一个环境,信号也是会遭到搅扰,首要是因为强电的磁场太大,信号线根本抵挡不住这样的磁场搅扰。那么,在山东保安服务公司做工程的过程中,要牢记不要与强电一同布线,要尽量防止线路通过这样的环境,非得通过期,也要做好线路的屏蔽作业并坚持必定的间隔,才干确保我们工程的质量。在受搅扰的情况下,我们能够运用抗搅扰器,可是作用不是很明显,较好的做法就是远离强电。
Lighting electrical voltages by the general security service company is 220V, and the operating voltage, many factories are equipped to reach 380V, if the lighting wire line wiring together with the video, the impact is relatively small, generally not what big problem; however, if the wire together with 380V wiring, video signal will be severely disturbed, even if is the 380V such an environment, the signal also can be disturbed, mainly because the strong magnetic field is too large, the signal line simply could not withstand such a disturbed magnetic field. Then, in the Shandong security service company to do the project process, and don't remember together to try to prevent electrical wiring, line through this environment, must pass expired, should also do homework shielding lines and to adhere to certain intervals to ensure the quality of our project. In the case of disturbing, we can use the anti-interference device, but the effect is not very obvious, the best way is to keep away from the strong power.
那么保安服务公司怎么处理视频线与强电之间的搅扰呢?
So how do security services deal with the interference between video line and strong power?
1.有干扰——再查看前端摄像机输出有没有干扰?如果没有,阐明干扰是来自线路耦合,是真干扰;如果前端摄像机输出有干扰,——摄像机或电源毛病,扫除——这是假干扰;
1. there is interference - is there any interference to see the front end camera output? If not, the interference is from the line coupling, which is true interference. If the front camera output is jammed, the camera or the power supply is removed, which is false interference.
2.用独立监视器看没有干扰,阐明摄像机输出没有干扰,线路也没有引进干扰。可是接到主机上看这一路就有干扰——必定是假干扰,大多是“多点接地”引进的地环路干扰——正确的规划是:体系只能主机一点接大地,前端一切摄像机、电源地都应该与大地绝缘。不必抗干扰器,也不必改变传输方法,就处理了,更重要的是消除了“安全隐患”;
2. there is no interference with the independent monitor, indicating that there is no interference in the output of the camera and there is no interference from the line. However, there is interference on the host's view. It must be false jamming. Most of them are "multi point grounding". The correct plan is that the system can only connect the main engine to the ground, and all the cameras and power sources at the front end should be insulated from the earth. There is no need to resist the interference device, and do not have to change the transmission method, it is handled, and more important is the elimination of "security risks";
3.线路引进的真干扰,一般不会特别凶猛,基本能够看清图画,用抗干扰器能够有用处理;如果干扰严重的简直看不清图画,大多是假干扰。
3., the real interference of the line will not be particularly fierce. It can basically see the picture, and it can be processed with the anti-jamming device. If the interference is serious, it can hardly see the picture, mostly the fake jamming.
关于同轴干扰问题:
On the problem of coaxial interference:
1.惯例含义的电磁干扰,是指电缆作为接纳“天线”,接纳的空间电磁波干扰。?#25913;?#26469;的工程实践证明,视频基带传输(0~6M),常见的电磁干扰,加权抗干扰器能够马到成功处理;
1. the conventional meaning of electromagnetic interference refers to the cable as the acceptance of the "antenna", the acceptance of the space electromagnetic interference. It has been proved that the engineering practice in recent years, the video baseband transmission (0~6M), electromagnetic interference is common, anti-jamming device to a weighted processing;
2.工程干扰现象的呈现,触及要素许多,设备毛病也能够发生干扰现象,如摄像机毛病、摄像机电源毛病等,也能够发生搅扰现象,虽然许多人也把它当?#23665;?#25200;来讨论,可是,这归于扫除设备毛病问题,毛病扫除了,搅扰也就处理了,本质上,这是主观要素形成的;还有,视频体系多点接地问题,这是在规划和施工上人为地把“地电位”引进视频体系形成的搅扰,也归于观要素形成的,单点接地就处理了,等等;这一类我们都把它划归为“毛病类搅扰”——假搅扰。
2. engineering interference phenomenon, touched many elements, the equipment failure can also occur interference phenomena, such as camera, camera power supply fault fault etc., can cause trouble phenomenon, although many people regard it as troubling to discuss, but this is due to the hair cleaning equipment problems, troubleshooting, trouble is dealt with this is, in essence, subjective elements form; also, grounding multi-point video system, which is in the planning and construction of the "artificially formed potential" the introduction of video system interference, is also attributed to the formation of the concept of elements, single point grounding on the deal, and so on; this kind of all of us it is classified as "wrong kind of trouble -- false trouble.
3.真干扰,能够“防”(如穿镀锌铁管),能够“避”(用光缆,或射频),也能够”抗“(用抗搅扰器);假搅扰——归于主观要素形成的毛病问题,只能从提高水平,堆集规划施工经历考虑处理。抗搅扰器,能够处理真搅扰,可是不能代替你扫除设备毛病和更正你的规划施工过错。
3. really can interference, "defense" (such as wearing a galvanized iron pipe) can "escape", (with cable or radio), can also be "anti" (anti interference device); false interference problems -- to subjective elements, only from the heap to improve the level of planning and construction experience to handle. Anti disturb, which can handle real disturbance, but it can not replace your equipment fault and correct your planning and construction fault.
本文由莱芜安保服务公司友情奉献,更多有关的知识请点击:http://www.vranime.net/我们将用较先进的技术,较真诚的态度,为您提供较为全面的服务。我们将会陆续向大家奉献,敬请期待。
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