Control system for electric lifting desk and electric lifting desk
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Solution Overview
Problem
The increasing diversity in customer requirements for electric lifting desks, such as different column types and numbers, leads to a proliferation of controllers and software variants, resulting in elevated management and inventory costs.
Innovation Solution
A control system for electric lifting desks that includes a microprocessor, measured voltage acquisition circuit, and motor driver circuit, where the microprocessor determines the number and type of columns based on distinct measured voltages, improving the connection manner between the controller and columns and reducing management costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different controllers with different serial numbers and corresponding software are provided for different column types and numbers, then the customization requirements of customers are met, but the management and inventory costs increase
Solution Approach 1:
The patent implements a universal controller that can adapt to different column configurations (single column, two columns, three columns; two-section, three-section types) through automatic detection of voltage signals from motor driver circuits. The controller identifies the specific configuration by reading voltage values and automatically configures itself, eliminating the need for multiple specialized controllers with different serial numbers and software versions.
Solution Approach 2:
The patent uses voltage signal parameters as identifiers for different column configurations. Each motor driver circuit outputs a distinct voltage value corresponding to its column type and number. The controller detects these voltage parameters and automatically adapts its operation accordingly, replacing the need for hardware-based differentiation through serial numbers and software variants.
2Adaptability or versatility
If multiple versions of controllers and software are maintained for different configurations, then all customer requirements can be satisfied, but the inventory management complexity increases
Solution Approach 1:
The controller performs self-configuration by automatically detecting the voltage signals from connected motor driver circuits and identifying the column setup without external intervention. This self-service capability eliminates the need for manual configuration, serial number tracking, and software version management, significantly reducing inventory management complexity and operational costs.
Solution Approach 2:
The system implements feedback through voltage signal detection from motor driver circuits. The controller receives voltage feedback that encodes information about the column configuration, processes this feedback to identify the specific setup, and automatically adjusts its control parameters accordingly. This closed-loop feedback mechanism replaces complex inventory management procedures.
3Device complexity
If a unified controller is used for all column configurations, then the management and inventory costs are reduced, but the ability to meet specific customization requirements may be compromised
Solution Approach 1:
The patent replaces mechanical or hardware-based differentiation (different controllers with different serial numbers) with an electrical signal-based identification system. Motor driver circuits output distinct voltage signals that encode configuration information, and the controller detects these electrical parameters to identify the column setup, substituting physical differentiation with electrical signal processing.
Solution Approach 2:
The voltage signal acts as an intermediary that carries configuration information from the motor driver circuit to the controller. Instead of the controller directly sensing physical column characteristics, the voltage intermediary encodes and transmits the configuration data, enabling the unified controller to accurately identify and adapt to different column setups.
Data Source
AI summary
Provided are a control system for an electric lifting desk and an electric lifting desk. The control system includes a controller and a motor driver circuit, and the controller includes a microprocessor, a measured voltage acquisition circuit and a measured voltage acquisition terminal. The motor driver circuit is configured to drive the lifting of at least one column, and the motor driver circuit includes a measured voltage generation circuit and a measured voltage output terminal. When the number of columns and/or the column type of the electric lifting desk is different, the value of a measured voltage output by the measured voltage generation circuit is different. The microprocessor is configured to determine whether the controller is connected to the motor driver circuit according to a voltage signal provided by the measured voltage acquisition circuit, and to determine the number of columns and/or the column type.