Introduction to Industrial Display
Industrial displays are displays used in industrial control processes or equipment. The main difference between it and civilian or commercial displays is that the shell design generally adopts all-steel design, and the panel is divided into ordinary iron plate, stainless steel, stainless steel, aluminum panel and other different materials. The protection grade of industrial displays is indicated by IP **, the former one is the dustproof grade, and the latter one is the waterproof grade. The dustproof level is up to 6, and the waterproof level is up to 8.
Where is the application of industrial displays? Introduction to the application of industrial displays
Industrial display classification
1. Open industrial display
Industrial monitors have no frame shells, only interiors. Most customers' applications are mainly in equipment and small size. They already have beautiful shells. There is not much space to install general monitors, such as ATM machines and commercial POS. Inside the customer's equipment.
2. Embedded industrial display
The embedded industrial display, as the name suggests, must be embedded in the customer's product. The customer's product must have a medium-to-large control cabinet. Our embedded industrial display is only the panel, and the rest is embedded in the customer's equipment. It is fixed with a hook (the large control cabinet only needs to open a large square hole according to the opening size of our embedded display installation diagram). There is no need to open any installation holes elsewhere.
3. Rack-mounted industrial display
Generally speaking, the rack-mounted industrial display is for example: it is installed on a 19-inch cabinet, so its width is standard 19 inches, and the mounting holes are opened according to the standard U number. It is generally used in large cabinets such as telecommunications, power, and large servers.
4. Inverted industrial display
To put it simply, it is installed reversely in the customer's cabinet and equipment. It is an industrial display installed inside the client machine. The difference from the open industrial display is that it has a shell and power supply, and its edge is also different from the customer's The edges of the shells coincide, and are generally used in large and medium-sized equipment, such as electricity, machinery, and medical industries.
5. Wall-mounted industrial display
The feature is that it can be hung up, not just on the wall, most of them are installed on the customer's equipment, it can adjust the angle according to the customer's requirements, with the appropriate mounting arm, he can stay at any position, For users to watch, generally used in small, medium and large equipment.
Where is the application of industrial displays? Introduction to the application of industrial displays
How to choose industrial monitor
First, determine the product and engineering requirements, such as installation method, size, panel structure, signal type and LCD screen performance.
1. The installation method is divided into rack-mounted, flip-chip, embedded, open and module.
Shelf-mounted industrial displays are used in industrial control cabinets, chassis and other equipment. The chassis is generally in units of U, and 1U is equivalent to 44CM. Commonly used 4U, 6U, 8U, etc.
Inverted industrial display is flipped from the back of the cabinet, and the front of the cabinet only displays the LCD display area.
Embedded industrial display is directly embedded from the front of the cabinet, and fixed on the side with a hook.
2. Size
The common sizes of industrial displays are 5.6 inches, 6.4 inches, 8.4 inches, 10.4 inches, 12.1 inches, 15 inches, 17 inches, 19 inches, and 20.1 inches. Some companies have developed corresponding products for other sizes. The industrial display is used first when determining the product.
3. Panel structure
The panel is generally made of magnesium-aluminum alloy, cold-rolled steel sheet, electro-galvanized sheet, stainless steel sheet, hot-dip galvanized sheet, die-cast aluminum and other materials.
4. Signal type
Signal interface adopts VGA and AV interface.
5. LCD screen performance
Brightness: Since most flat panel displays are used in an indoor environment, the brightness is about 250 to 300cd / m2 (nits), and the LCD with a diagonal size of 15 inches is the most commonly used. However, this brightness level display It cannot meet the requirements for use in an industrial environment. This is because the ambient light will be stronger, and its brightness can easily exceed the brightness of the LCD backlight. Moreover, touch screens are often used in industrial environments, which also reduces the brightness of the display and makes it appear dark. In general medical, industrial and public telephone booths and other applications, the required brightness must reach at least 450 cd / m2.
Contrast: Unlike consumer displays, which are mainly used for direct viewing, for industrial-grade displays, users may not be viewing at the best distance or under ideal lighting conditions, so a higher-contrast display is the best choice. For 10.4-inch, 12.1-inch, or 15-inch displays used in most industrial fields, a 450: 1 contrast ratio is ideal.
Color:
In some industrial applications, special color information is more important than text or numbers, it is very important to use the measured color as a control of the percentage of NTSC color saturation. In LCD products, color saturation is completely dependent on the influence of backlight. CCF (Cold Cathode Fluorescent Screen) backlight is a very popular technology, and can reach 70% and 80% of NTSC color saturation.
Perspective:
Commercial and consumer displays are usually designed for single use sitting directly in front of the display. In most industrial applications, this situation is very rare, for example, physicians or nurses cannot stop during the diagnosis and treatment to directly watch the monitor, they just want to know the expected data. For large machines, it is simply impossible to operate directly in front of the display. For navigation of a ship or an aircraft, it is also inconvenient for the pilot to sit directly in front of the LCD. Especially when there are multiple displays, they all face the viewer at different angles.
The monitor should have a wide viewing angle, or it can be thought of as "you can understand what is displayed at a glance." Consumer displays generally cannot meet this requirement because they use twisted nematic technology (Twisted Nematic), so the viewing angle is limited. In order to better adapt to industrial applications, it is required that the display has a wide viewing angle, and display technologies (such as ASV or MVA) with a viewing angle of up to 178 ° have been developed.
Backlight life
Cold cathode fluorescent (CCF) lamp is the most commonly used backlight light source in LCD. In industrial applications, the life time of CCF backlights is generally at least 50 000 hours, or the time when the brightness drops to half compared with the new one. In many consumer applications, the time when the brightness of the backlight drops to half of its initial brightness is only 10,000 hours.
Because consumer applications do not require continuous display operation, a CCF backlight life of 10 000 hours is sufficient, but this is not the case in most industrial and medical applications. The life of the backlight is very low compared to the life of the LCD. People are trying to double the lifespan of backlights, but in most industrial applications, a minimum lifespan of 50,000 hours is considered the lifespan standard for CCF backlights.
Where is the application of industrial displays? Introduction to the application of industrial displays
Second, choose the manufacturer
Import: Siemens (SIEMENS), Schneider (Schneider), Profis Proface, Baifu B + F, Advantech;
Beijing: Qichuang Caijing, Jingchuang Yueshi, Hezhong Reida, Novi Century, Sanqi Tuorui, Hongguo Xingsheng, Xinkehua
Shanghai: Nodajia, Langrui Electronics
Guangzhou: Guangzhou has the most and mixed brands.
Although there are more industrial monitors in the country, there are fewer professional monitors. There are Advantech, EVOC, Jinling Yi, Qichuang Caijing, Nodajia, Langrui and so on.
3. Price negotiation
Industrial displays use industrial LCD screens and industrial components. There are many quality inspection links in the later stage. The finished products need to be baked in a closed and humid room for 48 hours. So the cost and selling price are much higher than the average civilian display.
Among them, Advantech, EVOC price and performance belong to middle and high grades, the price is around 4000. The price of Jinling I, Nodajia and Langrui is around 3000, and the price of Qi Chuang Caijing is around 2000.
Fourth, after-sale protection
Industrial displays generally have a one-year warranty.
Where is the application of industrial displays? Introduction to the application of industrial displays
Applicable scope of industrial display
1. Display for industrial field control;
2. Embedded into various devices as a display device;
3. The display of the host of telecommunication and network equipment room;
4. Monitor and display for trains, subway stations and ports;
5. On-board (train, subway, car) display;
6. Hardened or military standard displays are generally used in harsh environments, military vehicles, and warships in the wild;
7. Advertisement machine, as commercial advertisement machine in commercial elevators, public places, commercial office buildings, etc., to broadcast commercial advertisements.
More uses: applications in various industries such as telecommunications, power, multimedia, national defense, automation equipment, manufacturing, and other fields, the leader is used as a man-machine interface, thin client, PLC, POS and other communications, control terminals, digital hospitals To be a bedside service terminal and an outpatient terminal to improve the hospital's service and management level Banks, shopping malls, hotels, railway stations, buses, subway stations, parks and other public places as media (advertising) players or query terminals for high-end communities to be families Service terminal to realize intercom, message, cost inquiry, commodity ordering, household appliance management, temperature and humidity control, etc.
