Asset Tracking Device Low-Power Wide-Area Communication Data Storage
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Solution Overview
Problem
Low power wide area communication technologies face challenges in accurate asset tracking due to limited data transmission rates and availability, leading to information loss during freight transport, especially when power is limited and communication networks are not extensively installed.
Innovation Solution
An asset tracking communication device with a sensing module, low-speed and high-speed communication modules, and a communication section determination module that selectively transmits essential information via low-speed communication during transport and stores additional data for transmission in high-speed communication environments, such as when entering specific areas with available high-speed networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If low power wide area communication is used to transmit freight transport information, then power consumption is reduced, but data transmission rate is limited and information loss increases
Solution Approach 1:
The communication module is segmented into two distinct parts: a low-speed communication module for transmitting only essential information during transport, and a high-speed communication module for transmitting complete information including multimedia when in high-speed communication areas. This segmentation allows the system to optimize between power consumption and information completeness based on the operational context.
Solution Approach 2:
The system dynamically switches between low-speed and high-speed communication modes based on the detected communication environment. The communication section determination module continuously monitors the environment and activates the appropriate communication module, enabling adaptive adjustment of transmission quality and power consumption levels throughout the freight transport process.
2Use of energy by moving object
If low power wide area communication is used for asset tracking, then power supply limitations are addressed, but transmission rate is low and communication coverage is limited
Solution Approach 1:
The communication device is designed with multi-functionality by integrating both low-speed and high-speed communication modules. The low-speed module handles power-constrained transport scenarios, while the high-speed module handles high-bandwidth scenarios such as multimedia transmission in designated areas. This universal design allows the single device to adapt to diverse communication requirements throughout the transport lifecycle.
3Loss of information
If all freight transport information is transmitted continuously, then tracking completeness is maintained, but power consumption increases and transmission errors occur
Solution Approach 1:
The system extracts and separates information into two categories: essential information that must be transmitted continuously during transport, and additional information including multimedia that is transmitted only when in high-speed communication areas. This extraction allows the system to minimize power consumption by avoiding unnecessary transmissions while maintaining tracking completeness through selective transmission of critical data.
Data Source
AI summary
Disclosed is an asset tracking communication device, which transmits only essential information through a low power wide area communication during asset transport, stores remaining information, and then transmits the stored information at a position capable of a high-speed communication. The disclosed asset tracking communication device transmits all or a part of the freight transport information according to a communication environment in a process of transporting the freight, stores information not transmitted, and then transmits the information under a high-speed communication environment, thereby minimizing information lost upon asset tracking.