Research on the whole chain traceability system of dairy products based on consortium blockchain

Dairy products are one of the indispensable foods in people's life. However, reports about the quality and safety of dairy products often appear. In this paper, a dairy product quality and safety traceability system based on consortium blockchain is proposed by using block chain technology. In addition, the traceability link in the dairy supply chain is defined, and the basic framework and traceability bar code of the traceability system are designed. The system guarantees the integrity and security of the traceability information from the technical level, and provides the dairy traceability service for the government, enterprises and consumers.

On-chip light scattering imaging of the guanine platelet

A guanine platelet is a very thin optical component that plays a role in light reflection control in the narrow space within the body of a fish. However, the details of this light control mechanism have not been revealed to date. In this work, guanine micro-platelets floating in water are visualized via light projection near an image sensor. These guanine platelets demonstrate light scattering toward specific directions. By setting a thin water layer on top of the image sensor’s cover glass, each platelet in the water layer forms column- or bar-code-shaped images on the screen. The existence of nanohole gratings in these platelets was confirmed by high-resolution optical microscopy. Numerical electromagnetic simulations indicated that the nanohole gratings contributed to the formation of unique light projection spots.

Design of Commodity Settlement System Based on Deep Learning

In order to solve the problem that the salesmen need to scan the bar code of commodity price one by one in supermarket settlement system, a commodity settlement system is proposed. The system hardware includes smart phone, PC and LCD. The image information is obtained after the smart phone scans goods, then the acquired image is uploaded to the upper computer, which identifies commodity and obtains the unit price of goods through the image, finally, the payment QR code is displayed on the LCD screen. Without scanning the cods again at the checkout counter, the payment could be accomplished in a manner that saved time and manpower cost.

A Comparative Analysis Study on Mobile Banking and Mobile Wallet Services in India

Banking sectors are fully focused on Mobile Banking and Mobile wallets and engage in electronic device and apps initiatives by reducing physical activities in banking operations. Mobile Banking and Mobile Wallet practices perceived various electronic products and services to measures supporting private companies, public and private banking sector procedures to electronic management systems and reduction of fuel and cost proper utilization. They are the best performance and efficiency of Mobile Banking and Mobile Wallet in the key of elements in the financial system. The most important mobile banking services have been mentioned through Account Access, Balance Enquiry, E-Passbook, Account Statement, Fund Transfer, Bill Payment, Branch Locator, ATM Locator and Requests, etc. Mobile wallet’s procedure is to open a zero account to submit KYC for address proof rather than submit a mobile number—payment using a one-time password, pin code, or bar code. The funds are limited to transactions only. Most private companies, public and private sector banks are; Airtel Money, Axis Bank Lime, Citrus Pay, Freecharge, ICICI Pockets, Itz Cash, Jio Money, Mobikwik, Oxigen, mRuppee, Paytm, SBI Buddy, SpeedPay, Vodafone M-Pesa, etc. The awareness of mobile banking and mobile wallet products and services is ready for all people using modern banking activities. Mobile banking and mobile wallets reduce physical activities and use information technology devices for proper handling of banking websites and private company mobile apps etc. This relative study of Mobile Banking and Mobile Wallet shows that there are significant differences in the transactions of Mobile Banking and Mobile Wallet volume and value. Analysis simple percentages have been used to analyze and interpret the data on Mobile Banking and Mobile Wallet volume and value made in India during the study period of 2012-13 to 2018-19 (7 years).

Smart Shopping with Automated Billing System Using Zigbee and RFID

In the future, smart commerce will serve as a platform for smart cities. This method is fully automated, and billing may be completed without the assistance of a cashier. It is a mobile gadget that will be installed in the PICk and Drop basket (trolley) at department shops. Billing can be done via a swipe machine or by using their smart phones to access online banking. Instead of a bar code reader, we utilise RFID. Each item will be assigned an ID number, allowing for easy billing. In addition, the product update will be transmitted to the server. As a result, if any of the products becomes null, an alert will be sent to the main server or the master PC administrator. The bill will be sent to the customer's cellphone number through GSM. ZIGBEE is used to communicate from the trolley to the main server. We employ a PIC microcontroller in our suggested system, which is cost and performance efficient. The ultimate goal of this article is to automate billing and move India closer to being a Digital India. Time may be saved for the client, and manpower can be decreased.

Design and control of mechatronic systems with pneumatic and hydraulic drive

This paper presents four handmade laboratory systems with pneumatic and hydraulic drive. The article first presents an example of a pneumatic motor speed control using a proportional directional control valve. Then the paper presents the design and control of a test device with pneumatic drive for determining the dynamic strength of materials, on which the fracture mechanics of materials due to the action of dynamic stress can be experimentally demonstrated and the resistance of materials to cyclic stress can be analyzed. The article then describes the design, construction and control of a pneumatically driven system for sorting products marked with a bar code using a vision system. The final section of the article describes an experimental setup for precise position control of a hydraulic cylinder using 2/2 cartridge valves, which can clearly demonstrate the application possibilities of these valves in industrial plants and mobile systems.