Air Extracting Device Load Current Monitoring
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Solution Overview
Problem
Current vacuum extracting devices are limited by small volumes, resulting in weak power and require significant time to create a vacuum in a sealed bag, and lack the ability to inform users of the remaining time required for the extracting action, making the process inefficient and time-consuming.
Innovation Solution
An air extracting device equipped with a processor, motor, air extracting unit, and wireless transmitting unit that monitors the load current to calculate and display the remaining time required for the extracting action, allowing users to know when the process will be completed through a connected mobile device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the vacuum extracting device uses small volume design, then the device portability is improved, but the extracting power is reduced and the extracting time is extended
Solution Approach 1:
The system continuously monitors load current during the extracting process and uses this feedback to calculate and predict remaining extracting time. The processor monitors the variation of load current, which reflects the changing vacuum degree, and dynamically calculates the remaining time needed to reach the target vacuum state, providing real-time information to the user through the wireless transmitting unit.
Solution Approach 2:
The patent replaces manual monitoring and estimation of extracting progress with an automated electronic measurement and calculation system. The load current sensor, processor, and wireless transmitting unit form an electronic system that substitutes for manual observation and time estimation, providing precise and objective extracting progress tracking.
2Device complexity
If the device lacks remaining time calculation function, then the device complexity is reduced, but the user waiting time management is worsened
Solution Approach 1:
The patent replaces manual monitoring and estimation of extracting progress with an automated electronic measurement and calculation system. The load current sensor, processor, and wireless transmitting unit form an electronic system that substitutes for manual observation and time estimation, providing precise and objective extracting progress tracking.
Solution Approach 2:
The wireless transmitting unit acts as an intermediary between the device's internal measurement system and the user's mobile device. It transmits the calculated remaining time information wirelessly, serving as a communication bridge that delivers useful information to the user without requiring direct interaction with the device interface.
3Ease of operation
If the device provides real-time remaining time information, then the user experience is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The system continuously monitors load current during the extracting process and uses this feedback to calculate and predict remaining extracting time. The processor monitors the variation of load current, which reflects the changing vacuum degree, and dynamically calculates the remaining time needed to reach the target vacuum state, providing real-time information to the user through the wireless transmitting unit.
Solution Approach 2:
The device automatically performs the functions of monitoring, calculating, and communicating extracting progress without requiring user intervention. The processor autonomously monitors load current, calculates remaining time based on the calculated formula, and the wireless transmitting unit automatically sends this information to the user's mobile device, making the system self-sufficient in providing service information.
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
Enables users to efficiently manage their time by predicting the completion of the vacuum process, improving user experience and reducing waiting time, as the device automatically calculates and communicates the remaining time needed to create a vacuum or near-vacuum condition in a sealed bag.
Implementation Method 1
the processor is configured to monitor the load current required by the motor while the air extracting unit executes the extracting action, and is configured to calculate a remaining time required for the extracting action to be completed based on a variation of the load current
Data Source
AI summary
An air extracting device (2) at least includes a processor (21), a motor (23), an air-extracting unit (24), and a wireless transmitting unit (25), and a method of the air extracting device (2) for calculating remaining time required for extracting action includes following steps: activating the motor (23) after the air extracting device (2) and a sealed bag (1) are jointed together; driving the air-extracting unit (24) to execute an extracting action by the activated motor (23) for extracting air from the sealed bag (1); monitoring load current of the motor (23) by the processor (21) while executing the extracting action; calculating a remaining time required for the extracting action by the processor (21) according to a variation of the load current; and, transmitting the remaining time required for the extracting action to a mobile device (4) through the wireless transmitting unit (25) for displaying thereon.