Editor's note: Lighting is the primary tool for giving your store an image. Your choice should take into account your target customers. The flexibility of the lighting area allows you to shape the image of the store, allowing you to highlight the main products to guide the customer's attention, and your lighting options can gradually meet the customer's taste and requirements. First, improve the image of your store, then we can combine the interior decoration to give you the most suitable lighting solution. For the sake of clearer analysis, let us use the following three fashion and jewelry stores as an example: 1. The relatively high basic illuminance (300 LUX), warm color (2500-3000K) and good color rendering of high-end brand stores ( Ra>90). A number of decorative spotlights are used to create dramatic effects (AF 15-30:1) to attract consumers' attention to the latest fashions and to match the atmosphere of the store.
2. The average illuminance of a general fashion store is (300-500 LUX), natural color (3000-3500K) and good color rendering (Ra>90). A combination of plenty of accent lighting creates a relaxed and dramatic atmosphere (AF 10-20:1). 3. The higher basic illumination (500-1000 LUX), the cool color (4000K), and the better color rendering (Ra>80) of the popular store create an intimate and casual atmosphere. Use fewer spotlights to highlight special items in specific areas of the store. By using different cases, we will explain to you how lighting affects the display of goods and creates a store atmosphere. a) Shelf display Sweeping or tilting sweaters and shirts on the shelves allows your customers to see the goods at a glance, conveniently comparing texture, color, fabric, feel and workmanship. Light that shines directly on clothing should be brighter (>1000 LUX). High-color sodium lamps (2500K) are recommended in the first-class store, while halogen lamps or straight-tube fluorescent lamps (3000-3500K) are used in other 2 and 3 types of fashion stores. Better color rendering (Ra > 80) can guide your customers to make purchasing decisions. b) Hanger display Customers should be able to easily find their favorite styles of clothing, and try to feel the texture of the clothes. Lighting should be concentrated on the product (>750 LUX), with natural tones to match the color of the garment (2750-3000K), good color rendering (Ra> 80-90). Type 1 and 2 fashion stores should use some key lighting, while in Type 3 stores, it is more effective to use embedded or suspended straight tube fluorescent lamps near the hangers. c) A variety of art designs are used in the display area of ​​the exhibition area to show the perfect side of the clothing worn by the models in the store. The presentation should be dramatic (AF 30: 1) to low dramatic (AF5:1). Brighter light is easier to display the visibility of the displayed item. For example, models wearing evening gowns standing at the table are recommended to use high-color sodium or halogen lamps, while metal halide lamps are more suitable for illuminating beachwear. For less expensive stores, an energy-saving tube downlight can provide extra light in the display area.


1

SCSI Solder Type Section

Small computer system interface (SCSI) is an independent processor standard for system level interfaces between computers and intelligent devices (hard disks, floppy drives, optical drives, printers, scanners, etc.). SCSI is an intelligent universal interface standard.

In addition to SCSI, IDE is also a very common interface. From the point of view of ease of use, IDE is more suitable for ordinary users. In addition, personal computer users not only need to configure a few peripherals, but also do not require high speed. Therefore, it is more appropriate to choose IDE interface. In addition, IDE also has the characteristics of high performance price ratio and wide application. Although the SCSI interface has many incomparable characteristics, the price of the interface and its peripherals is too expensive to be borne by ordinary users, which determines the limitation of its actual use range.

1. The working mode of IDE requires the whole process participation of CPU. When the CPU reads and writes data, it can't perform other operations. In this case, in the multitask operating system of Windows 95 / NT, the system reaction will be greatly slowed down. The SCSI interface controls the data reading and writing operation completely through the independent high-speed SCSI card, so the CPU does not have to waste time to wait, which obviously can improve the overall performance of the system. However, IDE interface has also made great improvements to improve this problem. DMA mode can be used instead of PIO mode to read and write data. DMA channel is responsible for data exchange, which greatly reduces the CPU consumption. However, comparing the CPU utilization of SCSI and IDE, we can find that SCSI still has considerable advantages.

2. The scalability of SCSI is larger than that of IDE. Generally, each ide system can have two IDE channels, with a total of four IDE devices. The SCSI interface can connect 7-15 devices, much more than IDE, and the cable connected is far longer than ide.

3. Although the price of SCSI device is higher, compared with IDE, the performance of SCSI is more stable, durable and reliable.

SCSI Solder Type Section

ShenZhen Antenk Electronics Co,Ltd , https://www.pcbsocket.com