VCRM Data Transmission Optimization via Change Detection
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Solution Overview
Problem
Conventional VCRM systems inefficiently transmit data as they automatically send all collected data without considering content, leading to excessive wireless data usage and limited transmission capacity.
Innovation Solution
Implementing a method that generates data slot buffers and determines whether to flush data based on changes and buffer size, reducing repeated transmissions by using a tag field to track data changes and buffer status, thereby optimizing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the VCRM collection terminal automatically transmits all collected data to the server without processing, then the data transmission is simple and fast, but the wireless data usage increases excessively and transmission capacity is quickly exhausted
Solution Approach 1:
The patent extracts and transmits only the essential information (data change status and buffer status) rather than all raw data. The terminal identifies which data has changed and transmits only those changes along with status flags, significantly reducing the volume of transmitted data while maintaining the ability to reconstruct the data state at the server.
Solution Approach 2:
The patent changes the transmission parameter from transmitting complete data values to transmitting data change status indicators. By using status flags (data change status, buffer full status, buffer max status) instead of transmitting actual data values every cycle, the system reduces wireless data consumption while maintaining data integrity.
2Measurement precision
If the VCRM collection terminal transmits data at high resolution and frequency, then the precision and amount of collected data increase, but the wireless data capacity is exceeded
Solution Approach 1:
The patent applies partial action by transmitting only the necessary portion of data (changes only) rather than all collected data. The buffer mechanism allows the system to collect data at high resolution continuously, but only transmits when necessary (when data changes or buffer is full), thus maintaining high measurement precision while staying within wireless data capacity limits.
3Loss of information
If the VCRM system collects and transmits more data with higher resolution, then the added value and utility of collected data increase, but the limited wireless data capacity (50 MB per month) is exhausted faster
Solution Approach 1:
The patent performs preliminary data processing and buffering before transmission. Data is collected and stored in buffers with defined sizes, and the system prepares data for transmission by identifying changes in advance. This preliminary action ensures that when transmission occurs, only necessary data is sent, maximizing the utility of transmitted data within the 50 MB monthly limit.
4Reliability
If the VCRM collection terminal stores and transmits all collected data automatically, then no data is lost, but the transmission complexity and data volume increase unnecessarily
Solution Approach 1:
The patent implements a feedback mechanism where the terminal monitors data changes and buffer status, and transmits information about these states to the server. The transmission includes status flags that provide feedback on what has changed, allowing the server to process only necessary data while maintaining data completeness and reliability.
Data Source
AI summary
The present invention relates to a VCRM data transmission optimizing method and an apparatus therefor, and a method of transmitting VCRM data in a vehicle terminal may include generating at least one data slot buffer, determining whether to perform buffer flush according to whether data is changed, and whether a buffer max size is reached, when new data is entered, and flushing data recorded in a corresponding data slot buffer according to the determination for performing the buffer flush to be transmitted to a server over a wireless network.