Wireless Spout Sensor for Liquor Volume Tracking

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Solution Overview

Problem

Current devices for monitoring liquor sales in bars are prone to errors and can be easily modified to avoid theft detection, affecting the relationship between bartenders and customers, and lack accurate measurement and reporting capabilities.

Innovation Solution

A liquid measuring device with a sensor and transmitter that wirelessly sends liquid level data to a remote computer, using algorithms to calculate pre-pour and post-pour volumes, detect anomalies, and interface with point of sale data to generate reports and manage inventory, including a spout with orientation sensors and RFID for real-time tracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If current devices for monitoring liquor sales are used, then theft detection capability is provided, but measurement accuracy is poor and devices are easily modified to avoid detection

Engineering Contradiction:
Improvetheft detection capabilityVSAvoidliquid level measurement accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The measuring device is divided into separate functional modules: a float indicator for liquid level detection, a separate transmitter unit for wireless data transmission, and integration with existing point-of-sale systems. This segmentation allows each component to be optimized independently, improving overall measurement precision while maintaining theft detection capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent replaces traditional mechanical measurement systems with electronic sensors and wireless transmission technology. The float mechanism is combined with electronic level detection, and data is transmitted wirelessly to eliminate manual intervention and modification opportunities, thereby improving both measurement accuracy and reliability of theft detection.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If automated monitoring devices are installed, then theft detection is improved, but bartender-customer relationship deteriorates due to lack of trust and increased suspicion

Engineering Contradiction:
Improvetheft detection capabilityVSAvoidbartender-customer interaction quality
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system automatically monitors and records all liquid dispensing events without requiring bartender intervention or customer awareness. The device self-registers pours, tracks volumes, and generates reports independently, eliminating the need for suspicious monitoring during customer interactions and preserving natural bartender-customer relationships while maintaining reliable theft detection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The monitoring system acts as an invisible intermediary between the liquor bottle and the point-of-sale system, automatically capturing measurement data and correlating it with sales transactions. This intermediary function occurs in the background without affecting front-of-house interactions, thereby maintaining relationship quality while ensuring detection reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If manual pouring measurement is allowed, then bartender flexibility is maintained, but measurement accuracy decreases and theft goes undetected

Engineering Contradiction:
Improvebartender pouring flexibilityVSAvoidpour volume accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides real-time feedback to bartenders through the float indicator and wireless transmission, showing actual pour volumes as they occur. This immediate feedback allows bartenders to maintain their pouring techniques and flexibility while ensuring accurate measurement, as the system continuously monitors and records data without restricting bartender actions.

Inventive Principle:
Principle #23Feedback

4Measurement precision

If complex monitoring systems are implemented, then measurement accuracy is improved, but device complexity increases making installation and maintenance difficult

Engineering Contradiction:
Improveliquid level measurement accuracyVSAvoidsystem installation and maintenance complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The monitoring system is designed to integrate with existing point-of-sale infrastructure and standard wireless communication protocols, making it universally applicable across different bar setups. The float-based measurement mechanism is a simple, proven technology that requires minimal installation complexity while maintaining high measurement precision, and the wireless transmission eliminates complex wiring requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Provides accurate and reliable liquor measurement and monitoring, reducing errors and theft detection, while allowing bartenders to track individual pour volumes and inventory levels, and automatically reordering products when necessary, enhancing customer relationships and operational efficiency.

Implementation Method 1

The spout may be a float-type sensor, capacitance sensor or optical sensor

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

The spout may be a float-type sensor, capacitance sensor or optical sensor

Methodology Applied
Scientific EffectCapacitance: Capacitance

Implementation Method 3

The spout may be a float-type sensor, capacitance sensor or optical sensor

Methodology Applied
Scientific EffectOptical detection: Refraction

Implementation Method 4

Movement sensing and spout orientation may be accomplished by an Accelerometer, MEMs Gyroscope or similar sensor

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentUS8453878B2Liquid level measuring device
Publication Date: 2013.06.04 PALMQUIST KEITH
  • US8453878B2 patent drawing
  • US8453878B2 patent drawing
  • US8453878B2 patent drawing

AI summary

A liquid level sensing and reporting system for bar keepers is proposed, having a liquid level sensor in wireless communication with a remote computer having software algorithms for calculating and reporting volume. The sensor is substantially in the form of a liquor bottle spout, and includes a means for measuring the height of the liquid in a bottle, sensing inversion of the spout, and sending the data wirelessly to a receiver. The receiver is associated with the computer, and transmits the data to the computer which calculates liquor volumes based on the changing height of the liquid in a bottle from pre-pour to post-pour status. The software extrapolates this information to produce a variety of real-time beverage consumption reports, including error reports caused by over pours, under pours, and skimming.