However, the most common problem encountered by monitoring equipment is that the display is not clear. Most of the reasons are caused by various interferences. In fact, the interference elimination of monitoring display is not a big problem. A simple disposal can make the monitor "full of blood". Today, I will teach some methods to clean the most common interferences, so that the monitor will no longer be tortured by interference.
1ã The most common interference: wood grain interference
In the process of use, wood grain interference is probably one of the most common interference. Not only monitors, but also some old-fashioned non wired video signal transmission televisions have been disturbed by these lines. In light conditions, it will affect visual fatigue and even affect normal viewing. Therefore, this is often regarded as the number one interference condition.
In fact, there are many reasons for unclear display, and the most common one is the defect of video transmission cable. Because in the construction of the monitoring system, the cable is often the most easily ignored link, which also constitutes the good and bad of the cable quality. When the quality of copper wire inside the cable is not high, or the shielding network in the outer layer is too scarce, it will have a very obvious impact on the video display of the terminal. This is mainly because the cable quality is different, resulting in excessive resistance of the whole line and affecting the signal transmission quality. For the disposal of this line interference, the selection of cable exchange is probably the only way.
However, because there are many reasons for similar interference, the identification of faults is undoubtedly the most important operation. It is advocated that it should be completed by experienced people to prevent unnecessary fault expenses.
In fact, in addition to line problems, wood grain interference may sometimes be caused by strong current disturbance near the transmission line. This is mainly due to the superimposed interference of normal power supply in the transmission process of the line, perhaps composed of thyristor equipment in its own power grid, which will also have a great impact on the transmission of the line. Of course, the disposal of this interference is much simpler than the above method. Just select the method of purified power supply or online power supply in the whole system to pass this small line.
In addition, the passage of strong peripheral current will also affect the line. For this problem, we can choose to strengthen the shielding of the front section equipment or ground the video line.
2ã Maximum area interference: moire interference
In addition to the most common wood grain interference, there is another interference that will occasionally affect viewing, that is, reticulated interference. In the common interference image, the influence area of this interference can be said to be the largest. However, although it has a large spread, it is not difficult to deal with it.
This interference is usually caused by a small short circuit or open circuit between the transmission core of the video cable and the surrounding protection network. Therefore, such problems often appear in BNC joints or other types of joints. When dealing with similar problems, just check the corresponding connectors one by one and replace the problematic equipment to solve the confusion of this kind of interference.
3ã The most regular interference: vertical bar interference
Although this kind of interference is not very common, its characteristics are very obvious. The main reason for this interference is that the quality of the cable does not meet the specifications, resulting in abnormal characteristics of the associated data in the transmission process.
Therefore, when dealing with this kind of interference, most of them will choose the method of "starting end series resistance" or "terminal parallel resistance". Of course, the best way to prevent this interference is still to conduct necessary product testing when purchasing the line, find problems in advance, and prevent a rework mess after the completion of the project.
The above three interference conditions basically cover one of the most common interference phenomena in video surveillance. From the above analysis, it is not difficult to find that a considerable number of reasons are caused by defects in equipment or construction. In fact, interference is not a big problem, but more repeated and detailed testing of equipment should be carried out during construction or procurement of accessories, so as to master the quality of goods at the source, so as to avoid various problems in later use.
Copyright © 2020 Coffee bag - Guangzhou tianci packaging industry Co,. Ltd. | Sitemap
{"site":{"site_id":2867,"site_type":1,"site_domain":"tiancipackaging.com","domain_mode":2,"original_domain":"tiancipackaging.com","language_code":"en","is_init_domain":0,"is_shop":false,"is_ssl":1,"lang_prefix":"/","animate_name":"none"},"page":{"page_id":55330,"page_type":"ai_article_detail","page_code":423,"page_url":"/ai-article/tips-for-small-editing-three-methods-to-remove-video-surveillance-interference.html","page_source":"","allowAnimat":0,"content_id":5895,"content_type":5,"detail_thumb":"","detail_title":"Tips for Small Editing: Three Methods to Remove Video Surveillance Interference","moq":1},"translateList":{"A new item has been added to your Shopping Cart":"A new item has been added to your Shopping Cart","Account is not exists":"Account is not exists","Add a review on the product":"Add a review on the product","Add to":"Add to","Add to Cart":"add to cart","all":"all","All Orders":"All Orders","Already commented":"Already commented","Are you sure you want to delete it?":"Are you sure you want to delete it?","Are you sure to delete the selected items?":"Are you sure to delete the selected items?","Awaiting Payment":"Awaiting Payment","Awaiting Shipment":"Awaiting Shipment","account security":"account security","address book":"address book","Buy":"Buy","Buy Now":"Buy Now","Cancel":"cancel","Clear":"Clear","Clear Search":"Clear Search","Confirm":"Confirm","Choose a country":"Choose a country","Choose Coupon":"Choose Coupon","commodity payment":"commodity payment","Completed":"Completed","Condition not met":"Condition not met","Confirm password is inconsistent with new password":"confirm password is inconsistent with new password","Congratulations":"Congratulations","Congratulations! You are got a coupon.":"Congratulations! You are got a coupon.","Congratulations! You are got all coupons.":"Congratulations! You are got all coupons.","Continue Shopping":"Continue Shopping","Copy the code and use it directly in the shopping cart.":"Copy the code and use it directly in the shopping cart.","Coupon List":"Coupon list","Country":"Country","Design customization":"Design customization","Do not use any discount":"Do not use any discount","Earliest":"Earliest","email":"email","email format does not match":"email format does not match","Estimated Delivery Time":"Estimated Delivery Time","expired":"expired","Find Parts":"Find Parts","Free":"Free","Free Quote & Information Request":"Free Quote & Information Request","Free Shipping":"Free Shipping","for order over":"for order over","Get":"Get","Get coupons":"Get coupons","Get discount":"Get discount","Get it":"Get it","Get it after logging in and use it in the shopping cart.":"Get it after logging in and use it in the shopping cart.","Go to Page":"Go to Page","Highest Price":"Highest Price","Hot Sale":"Hot Sale","home":"home","Incorrect form format":"Incorrect form format","inquiry":"inquiry","Loading":"Loading","Lowest Price":"Lowest Price","Match Product":"Match Product","Merchant Free Shipping":"Merchant Free Shipping","Most Popular":"Most Popular","my account":"my account","my coupons":"my coupons","my inquiry":"my inquiry","my orders":"my orders","my reviews":"my reviews","my wishlist":"my wishlist","name":"name","Newest":"Newest","No Quotation":"No Quotation","No time limit":"No time limit","Not deleted":"Not deleted","not valid yet":"not valid yet","Off":"Off","Offers and Discounts":"Offers and Discounts","ok":"ok","optional":"optional","Order over":"Order over","order notes":"order notes","Password contains at least numbers and letters length should be 6-20":"password contains at least numbers and letters length should be 6-20","Password is invalid":"Password is invalid","Password length should be 6-20":"Password length should be 6-20","Paypal":"Paypal","paypal payment":"paypal payment","personal info":"personal info","Please click ’click to continue’ to retry.":"Please click \"click to continue\" to retry.","Please enter a valid email address":"Please enter a valid email address","Please enter the verification code":"Please enter the verification code","Please login in first":"Please login in first","Please select attribute":"Please select attribute","Please select country/region":"Please select country/region","Please select superior":"Please select superior","Please select the number of ratings.":"Please select the number of ratings.","read more":"read more","Region":"Region","Register Success":"Register Success","Sale ends in":"Sale ends in","Save in wishlist":"Save in wishlist","Search":"Search","Shipping":"Shipping","Shipping Address":"shipping address","shipment successful":"shipment successful","Size guide":"Size guide","Small Text":"Small Text","Small Title":"Small Title","Sort By":"Sort By","State/Province/Territory":"State/Province/Territory","Successfully delete":"Successfully delete","Successfully save":"Successfully save","The coupon code has been copied and used in the shopping cart.":"The coupon code has been copied and used in the shopping cart.","The subscription is successful, thank you for your participation":"The subscription is successful, thank you for your participation","The user center is out of service. Please contact customer service":"The user center is out of service. Please contact customer service","This is Text":"This is Text","This is title":"This is title","This transaction has failed.":"This transaction has failed.","Time to shop":"Time to shop","To be commented":"To be commented","Total":"Total","the content can not be blank":"the content can not be blank","Update password success":"Update password success","Upload Image":"Upload Image","Upload up to 6 pictures":"Upload up to 6 pictures","uploading":"uploading","used":"used","user center":"user center","Validity period":"Validity period","valid now":"valid now","View Cart & Checkout":"View Cart & Checkout","Welcome to the website":"Welcome to the website","Western Union":"Western Union","Write a Review":"Write a Review","You are got a coupon.":"You are got a coupon.","You haven’t chosen an address yet":"You haven't chosen an address yet","You haven’t selected a product yet":"You haven't selected a product yet","Your rating":"Your rating","Your review":"Your review","Your shipping address error":"Your shipping address error"}}