Shelf labels have always been an essential role in supermarkets and warehouses, but with the expansion of business scale, the complex management problems of ordinary price labels have also become prominent. In recent years, electronic shelf labels have been widely used, but most of them use 433M wireless communication or WiFi communication. This paper presents a shelf electronic label developed using Bluetooth protocol, which uses the ink screen module based on electrophoretic display technology as the label display. The complete electronic shelf label system includes three parts: server, Bluetooth gateway and electronic shelf label. Server communicates with Bluetooth gateway using MQTT protocol. This paper introduces the design and implementation of electronic label and Bluetooth gateway.
With the development of recent years, video image acquisition technology is also in constant progress and development. The technology can be widely used in all walks of life. With the promotion and development of technology, image technology for real-time and image computing requirements are constantly improving. Image storage needs logic resources also increased significantly. Aiming at this problem, it needs to develop a kind of applicable image acquisition and display system on the hardware. In order to reduce the use of logic resources and add some image processing algorithms on the system platform, this paper usesNEXYS4DDR series FPGA of Xilinx company to realize the system. The front-end image acquisition uses CMOS image sensor OV7670. The cache adopts the IP core SRAM integrated with Xilinx vivado platform. The system displays the real-time video image data through VGA display, and uses hardware description language Verilog HDL. Through simulation test, the system can fully realize the function of real-time image acquisition and display.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.