Wuxi Weifeng provides a new ESL electronic shelf label system solution, this system consists of EPD passive display screen, intelligent handheld terminal device, master remote server, client POS station, data line, server and client commodity information program. The display part adopts EPD passive display, and the content is updated by the smart handheld terminal device through the data line.

The EPD screen is a reflective display that consists of AG film, an e-ink layer, and a glass substrate. The electronic paper display screen is invented by the principle of electrophoretic display technology (EPD). The electrophoretic display technology (EPD) is the encapsulation of black and white charged particles in a microcapsule structure. The external electric field controls the movement of black and white particles with different charges, so as to present a black-and-white monochrome display effect. When the white particles rise to the upper surface, all the ambient light hitting the upper surface is completely reflected, thus forming the white state, that is, the state of the paper; When the electrodes are swapped, the two colored particles switch places so that the white particle can go down and the black particle can go up. Light is absorbed by the black particle, resulting in black color and a black and white display. In addition, there can also be a mixing state on the upper surface, where two different particles are mixed in proportion, which can form black and white and different colors with gray levels. Because EPD technology can present a high reflectivity, high contrast black and white display effect, and also have a memory effect, when the external electric field is cancelled, the current display will be displayed immediately. As a printed sheet of paper shows. Because of the bistability, the image is retained on the EPD for months or years after the power field is canceled.

Diagram of the passive EPD screen structure

The use of electronic shelf labels can greatly improve the efficiency of supermarkets, which is reflected in the following aspects:

A. Saving human resources According to the survey, a large supermarket needs to replace the price tag every day for dozens of employees for 1-2 hours, and when it comes to holiday promotion, they need to spend more energy. The use of electronic shelf labels can free the employees and devote more time to other work.

b. Save Paper and Protect the Environment Using electronic shelf labels can save supermarkets a lot of paper price tags as well as the cost of printer ink. And in addition to saving costs, more environmental protection, energy conservation and emission reduction made a contribution. At the same time, the passive EPD screen has a simple structure and low failure rate because it has no power consumption and no driver motherboard.

c. Avoid price error The use of electronic shelf labels ensures that the price of goods on the shelf is always consistent with that in the POS machine, so as to completely eliminate customer complaints and various legal consequences caused by price inconsistency. While maintaining customers' right to know about commodity prices, it also creates a better shopping environment, making customers trust the supermarket more and improving the brand of the supermarket.

d. Make it possible to use paper labels for time-sharing promotion. Due to manpower limitation, large-scale price changes can only be carried out at night.

e. The original paper labels in the store can be managed by a set of software. The price management system can manage electronic shelf labels and ordinary paper labels at the same time.

The EPD of f electronic shelf label is light and easy to read. It not only has the effect of paper, but also can update information infinitely compared with traditional paper. Moreover, through computer connection, it can achieve the benefit of timely and accurate update. Electronic shelf labels using EPD are also in line with the trend of automated management. Easy to transform into standardized products, wide range of use.

Application fields: widely used in industrial automation, commercial automation and traffic control management, highway automatic toll collection system, parking lot management system, goods management, assembly line production automation, safety access inspection, warehouse management and other fields.

The commodity information of the main remote server is synchronized with the network of POS cashier system. At the same time, when the 3G or WIFI network is enabled on the smart handheld terminal, the commodity information of the main remote server system is synchronized with the commodity information of the main remote server system by logging in the client. In this way, compared with the traditional paper label, it has the advantages of fast, low cost and accuracy.

Working process:

1. Input data at the beginning of the system. Input commodity information, such as brand, name, price, barcode, code, origin, specifications, models, grades, price officers, update date, positioning, remarks, etc., through commodity information program on the remote server. Implement one - to - one correspondence of property codes. Just scan the barcode of the product and the information of the product will be displayed.

2. Scan and locate through the handheld device, connect the data line, and input all the information of the product through the client commodity information program. .

3. When the commodity information is updated, the server will automatically send an update module to the handheld device as the handheld device and the remote server update synchronously, prompting the updated commodity, location and operator. In this way, the operator can find the corresponding EPD screen, first scan the corresponding product bar code, prompt OK is the updated product, connect the smart handheld terminal device and the passive EPD screen, and export the product information to the EPD.

4. The commodity information management program is installed on the main remote server and is responsible for managing the POS cashier system client of the supermarket. The intelligent handheld terminal device receives the update module sent by the main remote server and modizes the corresponding commodity information through positioning. At the same time, a message is displayed indicating OK, and then modify the next information.

Working mode of smart handheld terminal device:

Input mode of intelligent handheld terminal device: Standard stylus is used. Multiple input modes are optional.

Audio: Software support for speakers, receivers, full-duplex recording and playback (stereo)

Display light: wireless transmission/receiving, scanning, power/charging, 4 states of color LED indicator

Data communication: GPRS/GSM, Local Area Network (WLAN) wireless communication, Bluetooth, 3G.

Data acquisition: linear scanner

Principle: 1, the smart handheld terminal device is equipped with a mobile phone card, memory card, etc., open the GPRS or 3G function, develop a client with commodity information management program. Smart handheld terminal The EPD power control board, driver IC, and main control chip are integrated into the smart handheld terminal. ESL Electronic shelf label such a smart handheld terminal device and the passive EPD screen in the system through the data line connection, data transmission or input and output operations.

2. The smart handheld terminal device is equipped with the commodity information management client program. First of all, log in through the input of the assigned client. In this way, the current product information content is displayed on the smart handheld terminal device. You can check the content displayed by the smart handheld terminal device and the content displayed by the EPD on the electronic display. Because the product information displayed on the smart handheld terminal device is updated synchronously with the remote server, the latest information is displayed. So you can check.

3. There is also a client update program module in the smart handheld terminal device, which reflects the latest product update information. We locate the product location through query, connect the passive EPD screen through the data line, scan, check and confirm the update. After confirmation, the update module will indicate that the current commodity information is successful, and continue to update other commodity information.

4. Intelligent hand-held terminal device, which can change some commodity information one-way through handwritten input.