Flowmeter Circuit Power Allocation for Intrinsically Safe Operation
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Solution Overview
Problem
The existing methods for managing power supply in flowmeters are costly and complex due to the need for multiple intrinsically safe power supplies to meet simultaneous running requirements, which increases costs and complicates design and installation.
Innovation Solution
A circuit power supply management method and system that prioritizes intermittent circuits based on availability and priority, allowing for efficient allocation of power without the need for additional intrinsically safe power supplies by using a control module and power supply control circuits to manage power distribution among intermittent and constant power supply circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the number of intrinsically safe power supplies is increased to meet simultaneous running requirements, then the total output power is increased, but the cost increases and the circuit design becomes more complex
Solution Approach 1:
The patent combines multiple power supply functions into a single intrinsically safe power supply by implementing a priority-based power management system. The control module dynamically allocates power to different circuits based on their priority levels, allowing one power supply to serve multiple circuits that would otherwise require separate power supplies. This merging approach achieves the required total output power while avoiding the complexity of multiple power supply designs.
Solution Approach 2:
The patent implements a dynamic power allocation mechanism where the control module continuously monitors circuit power requirements and adjusts power distribution in real-time based on priority levels. When high-priority circuits require power, the system dynamically reallocates power from lower-priority circuits, enabling flexible power management that adapts to changing operational requirements without needing additional power supply hardware.
2Power
If the number of intrinsically safe power supplies is increased to meet simultaneous running requirements, then the total output power is increased, but the product cost increases
Solution Approach 1:
The patent merges multiple power supply functions into a single intrinsically safe power supply unit, reducing the bill of materials and manufacturing costs. By using one power supply with intelligent power management instead of multiple power supplies, the system achieves the required total output power while significantly reducing product cost and simplifying the manufacturing process.
Solution Approach 2:
The single intrinsically safe power supply is designed to perform multiple functions by serving different circuits with varying power requirements through dynamic allocation. The power supply acts as a universal power source that can adapt to different circuit needs based on priority levels, replacing what would traditionally require multiple specialized power supply units.
3Power
If the number of intrinsically safe power supplies is increased to meet simultaneous running requirements, then the total output power is increased, but the installation wiring becomes more complex
Solution Approach 1:
The patent consolidates multiple power supply connections into a single power supply unit, dramatically simplifying installation wiring. Instead of requiring separate power supply installations and wiring for each circuit, the system uses one power supply with centralized power management, reducing wiring complexity and making installation more straightforward.
4Device complexity
If a single intrinsically safe power supply is used with priority-based power allocation, then the circuit design is simplified and cost is reduced, but the ability to simultaneously run all circuits is limited
Solution Approach 1:
The patent implements dynamic power allocation that allows the system to adapt to different operational scenarios. The control module continuously monitors power requests and dynamically adjusts power distribution based on circuit priorities, enabling the system to support simultaneous operation of high-priority circuits while managing power constraints through intelligent reallocation rather than hardware expansion.
Data Source
AI summary
A circuit power supply management method and system for a flowmeter, and a flowmeter. The method includes: obtaining an intermittent circuit with a highest priority in an application list as a circuit to be run; obtaining a first priority and a first power of the circuit to be run; obtaining a currently available second power, and running the circuit to be run if the second power is greater than or equal to the first power, or obtaining, from a running queue, a third power with a priority lower than a priority of the circuit to be run; running the circuit to be run if a sum of the second power and the third power is greater than or equal to the first power, or if the sum of the second power and the third power is less than the first power, obtaining, from the application list, an intermittent circuit with a priority lower than the priority of the circuit to be run, as the circuit to be run and performing the step of obtaining the first priority and the first power of the circuit to be run. With the method, prioritized execution of an intermittent circuit with a high priority can be realized, and the requirement for simultaneous running of functional circuits is met, and meanwhile there is no need to add an extra intrinsically safe power supply, the cost is low and the circuit is simple.