Technology丨What work should be done during the pre-sales site survey of the LED display?

1,284 views admin 2020-08-20

LED display is a customized product, which is different from general electronic consumer products. It is not a simple buying and selling process, but involves the implementation process of the entire system design scheme. From pre-sales, including design of other related industries to after-sales construction, installation and maintenance, these tasks require LED display manufacturers to provide customers with technology service. The following editor will share with you the matters needing attention in the field survey before LED display sales: field survey before LED display sales

Understand user specific requirements

1. Type and size of display screen.
2. Installation environment.
3. Display content and method.
4. Communication method.

Site survey content

1. The wall state, installation method (inlaid, floor-standing, suspended, wall-mounted, support, pillar) and force of the location where the display is installed. 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 mosaic installation, whether the reserved installation slot is suitable; if the wall has decorative partitions, you must ask the user about the wall condition; 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 screen body for a long time, so you must not look at it like a horse.)

2. The power supply on site. The capacity of the computer room or AC transformer, whether the cables need to be re-arranged, or whether the wire diameter of the laid-out cable meets the requirements; if it is single-phase power, whether there is a ground 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.

3. Understand the control position of the display screen and whether the communication line is unblocked. The length of the communication line required on site, and whether there are other devices 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 need to understand the user’s application requirements, 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 a super five network cable should be less than 120 meters, and the length of the non-super five network cable 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 the number of network cables or optical fibers, there must be spares.

4. Tools that need to be carried, such as tape measure or laser ruler. Do you need scaffolding or users provide scaffolding. Whether the computer is provided by the user.

5. The external environment on 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.

6. Use the camera to take photos of all situations encountered on site as much as possible, taking different angles and different details in place.

7. Whether the user has special requirements, whether it can be realized if there are special requirements, and the difficulty of the project.

8. If 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 material market.

Special considerations for additional outdoor LED displays:

(1) The LED display 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 circuits or even fire, cause failures or even fires, and cause losses.

(2) Outdoor LED displays may be attacked by strong electricity and magnetism caused by lightning.

(3) The ambient 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, so that the display system cannot work normally.

If the work process is not arranged in advance, a business trip to a remote city for site survey work will have a significant impact on the installation of the LED display. At least, it will cause some trouble to users and affect the company's service standards. Not all display screens must be surveyed by the merchant in person. If it is really inconvenient to go to the site, based on the above situation, after selecting the display screen and control system, the user needs to cooperate with the site to conduct the site survey when conditions permit. , Or the merchant can learn about the on-site situation through other channels.

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Sunrise LED Display manufacturer