Alle ved, at LED-skærme er tilpassede produkter. De er ikke en simpel købs- og salgsproces som almindelige elektroniske forbrugerprodukter. I stedet involverer de implementeringen af et komplet sæt af systemdesignordninger, lige fra før-salg inklusive design i andre relaterede industrier til efter-konstruktion. Installation og vedligeholdelse udføres ofte af forhandlere. Følgende redaktør vil dele med dig de forhold, der kræver opmærksomhed i feltundersøgelsen før salg af LED-skærme.
LED display
1. Forberedelse inden byggepladsundersøgelse
Before departure, you need to communicate with the user to understand the specific requirements of the user: ①The type and size of the display screen. ②Installation environment. ③Display content and method. ④ Communication method.
2. Undersøgelsesindhold på-webstedet
①The state of the wall, the installation method (inlaid, floor-standing, hanging, wall-mounted, supporting, column) of the location where the display screen is installed, and the force. And according to the specific size of the display screen, confirm whether there are obstacles at the installation site hindering the installation of the display screen. In the case of inlaid installation, whether the reserved installation slot is suitable; if the wall has decorative partitions, you must ask the user about the condition of the wall; in the case of column screen installation, be sure to understand the geological conditions. (If there is mud and sand at the bottom of the geological layer, it will cause the risk of sinking or even collapsing of the column and the screen body for a long time, so you must not look at it like a horse.)
②The power supply situation on site. The capacity of the equipment room or AC transformer, whether the cables need to be re-arranged, or whether the wire diameter of the arranged cables meets the requirements; if it is single-phase power, whether there is a grounding wire; if it is three-phase power, whether it is three-phase five-wire . If you need to re-wiring, you need to accurately measure the length of the power cord on site.
③Understand the control position of the display screen and whether the communication line is unblocked. The length of the communication cable required on site, and whether there are other devices with lines that need to be connected to the display control terminal or understand the switching method of the on-site signal channel; if the user does not understand anything, at least the user's application needs should be understood, especially the theater Class users. If the user has already wired, ask whether the length and quantity of the wiring are appropriate; the normal synchronization system should use Category 5e network cables to be less than 120 meters, and the length of non- Category 5e network cables should be lower; if the number is not enough, the corresponding number of network cables must be increased. If it is too long, you must use a suitable optical cable. Use multi-mode fiber within 500 meters, and use single-mode fiber if it exceeds 500 meters. Regardless of whether it is the network cable or the number of optical fibers, there must be a spare.
LED display
④ Tools that need to be carried, such as tape measure or laser ruler. Do you need scaffolding or user-provided scaffolding. Whether the computer is provided by the user.
⑤ The external environment of the site. Do you need to pay attention to moisture-proof when installed indoors, and whether you need to pay attention to the details of waterproof and lightning protection measures when installed outdoors; whether the location is close to the sea, close to a chemical plant, and how salt, alkali, and acid the air is. In addition, outdoor screen users need to observe the viewing distance of the audience, the height of the screen, and the direction of the sun.
⑥Use the camera to take photos of all situations encountered on the scene as far as possible, and shoot in place with different angles and different details.
⑦ Whether the user has special requirements, whether it can be achieved if there are special requirements, and the difficulty of the project.
⑧If a business is responsible for construction, it is necessary to go to the local area to understand the specific location of the steel market and building materials market.
3. Særlige hensyn til udendørs skærme
①The display screen is installed outdoors, often exposed to the sun, rain, wind and dust, and the working environment is harsh. Electronic equipment getting wet or severely damp can cause short circuit or even fire, cause malfunction or even fire, and cause loss.
②The display screen may be attacked by strong electricity and magnetism caused by lightning.
③The environment temperature changes greatly. When the display screen is working, it will generate a certain amount of heat. If the ambient temperature is too high and the heat dissipation is poor, the integrated circuit may not work properly, or even be burned, making the display system unable to work normally.
