PV Data Collector Segmented Transmission Control
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Solution Overview
Problem
Photovoltaic devices face challenges in efficiently collecting and transmitting state information due to environmental factors and remote locations, leading to inefficient management and maintenance.
Innovation Solution
A data collecting device with a controller that determines varying transmission periods for different state information groups, including information on system stability, instantaneous power generation, and accumulated power generation, to optimize communication and prevent congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If state information is transmitted frequently to ensure accurate monitoring of photovoltaic device status, then measurement precision and reliability are improved, but communication line congestion increases and transmission efficiency deteriorates
Solution Approach 1:
The patent segments state information into multiple groups based on transmission priority and characteristics. Different groups are transmitted at different frequencies and times, allowing critical information to be sent frequently while less critical information is sent less often, thus resolving the contradiction between accurate monitoring and transmission efficiency
Solution Approach 2:
The patent implements periodic transmission with varying periods for different information groups. High-priority information is transmitted with shorter periods while low-priority information uses longer periods, optimizing both monitoring accuracy and communication efficiency by matching transmission frequency to information importance
2Ease of operation
If uniform transmission period is used for all state information groups, then device complexity is reduced and ease of operation is improved, but information on critical system stability parameters may be delayed
Solution Approach 1:
The patent applies different transmission periods to different information groups based on their specific characteristics and importance. Critical system stability information receives shorter transmission periods while less critical information uses longer periods, ensuring reliable monitoring of important parameters without unnecessarily increasing overall system complexity
3Reliability
If multiple data loggers transmit state information simultaneously to the management server, then complete system monitoring is achieved, but communication line congestion increases
Solution Approach 1:
The patent implements staggered periodic transmission where multiple data loggers transmit at different time intervals rather than simultaneously. This distributes the communication load over time, preventing congestion while ensuring all parts of the system are monitored
Solution Approach 2:
The patent segments the monitoring function across multiple data loggers that transmit different information groups at different times. This distributes the transmission burden while maintaining comprehensive system coverage, resolving the contradiction between complete monitoring and communication congestion
Data Source
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AI summary
A data collecting device collecting state information of a photovoltaic device is provided. The data collecting device includes a reception unit collecting the state information, and a transmitting unit transmitting the state information according to a state information transmission time based on a state information group including the state information.