System for digital crediting of deposit amounts via QR code
A system with a recognition and QR code output unit addresses the issue of lost paper receipts by enabling secure, digital deposit crediting through an encrypted QR code redemption process, facilitating easy integration into existing machines.
Patent Information
- Application Number
- DE202025001896
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-28
- Estimated Expiration
- 2035-07-31
AI Technical Summary
Existing reverse vending machines generate paper receipts that can be easily lost, and there is a lack of fully digital integration for deposit refunds.
A system comprising a recognition unit, processing unit, and QR code output unit, which generates an encrypted QR code for deposit redemption via an app.
Enables secure, digital, and unambiguous deposit crediting without paper consumption, with easy integration into existing devices.
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Abstract
Description
Technical field
[0001] The invention relates to a technical system for the return of deposits in retail trade. It relates in particular to a system for the digital recording, processing and crediting of deposit amounts using QR codes. State of the art
[0002] Common reverse vending machines for empty bottles and cans generate paper receipts that can easily get lost. A fully digital integration of deposit refunds is not known. Object of the invention
[0003] The object of the invention is to enable a completely digital, secure and unambiguous crediting of deposit amounts without paper. Solution to the task
[0004] The problem is solved by a system according to claim 1, consisting of a recognition unit, a processing unit, a QR code output unit and a communication interface. Advantages of the invention - No paper consumption - Unique digital assignment to customer accounts - Tamper-proof - Easy integration into existing devices Example of implementation
[0005] A reverse vending machine recognizes containers, calculates the deposit amount and generates an encrypted QR code that can be redeemed by the customer via app. Fig. 1 - Basic structure (block diagram) • Return Machine Unit (12): Mechanical mechanism into which the bottle is inserted and which transports the bottle inside. • Processing Unit (14): Electronics / software that evaluates the bottle (material, shape, quantity) and calculates the deposit. • QR Code Generator & Display (16 / 18): Module that generates a QR code from the deposit data and displays it on a screen so that the customer can scan it later. Fig. 2 - Physical Machine • Housing (22, 34, 36): Cabinet-shaped vending machine with an upper section for operation and a lower section for the collection container. • Control Panel & Sensors (30): Area with the deposit slot, cameras / sensors, and possibly buttons. • QR Code Display (18): Display on the front that makes the generated QR code visible to the customer. • Collection Container (36): Interior in which the deposited bottles are collected. Fig. 3 - Data Technology • Detection Data (40): All measurement and sensor data generated when the bottle is detected (e.g., barcode, weight, shape). • Data Storage (42 / 44): Storage unit in which the detection data and the calculated deposit amount are stored. • QR Code Generator & Display (44): Uses the stored data to create a QR code containing, for example, the deposit amount, time, and machine ID. Fig. 4 - User Procedure • Step 1: “Insert a bottle (100)” - Customer inserts a bottle into the slot. • Step 2: “Detecting bottle (110)” - Sensors check if it is a valid deposit bottle and record the relevant data. • Step 3: “Scan QR code (120)” - The machine displays a QR code; the customer or a POS system can scan this code to credit the deposit. • Step 5: “Confirmation (140)” - Confirmation that the deposit transaction was successful (e.g., display “Deposit credited” or printout / receipt)
[0006] Line designations (labeled with arrows) to: Fig. 2 1 Housing of the deposit bottle machine 2. Display (text, amount, instructions). 3 buttons / control knobs (Start, Receipt) 4 dispensing slots for deposit slips". 5 Filling openings for deposit bottles and cans 6 Internal technology (scanner, conveyor belt, container)
Claims
[1] System for the digital crediting of deposit amounts, comprising: a) a reverse vending machine with a recognition unit, b) a processing unit for determining the value of the deposit balance, c) an output and transmission unit for generating a QR code, d) a communication interface for the use of the QR code in a mobile application, wherein the QR code assigns a digital credit of the deposit value to a customer account. [2] System according to claim 1, characterized by that the detection unit includes optical, mechanical, or weight-dependent sensors. [3] System according to claim 1 or 2, characterized by that the processing unit uses an internal database. [4] System according to any one of the preceding claims, characterized by that the QR code contains encrypted data with device identifier, timestamp and deposit amount. [5] System according to any one of the preceding claims, characterized by that the communication interface is implemented as a WLAN, mobile network, Bluetooth or cloud interface [6] System according to any one of the preceding claims, characterized by that the app automatically reads the QR code and transmits the data to a backend. [7] System according to any one of the preceding claims, characterized by , that the backend detects duplicate redemptions. [8] System according to any one of the preceding claims, characterized by that the machine has a screen to display the QR code. [9] System according to any one of the preceding claims, characterized by , that the QR code is alternatively displayed on an external customer display. [10] System according to any one of the preceding claims, characterized by that the mobile application stores a history of redeemed deposit amounts.