Electronic Device Cloud Vehicle Data Storage
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Solution Overview
Problem
Existing vehicle monitoring systems face challenges in seamlessly providing cloud-based services due to intermittent wireless communication connections, leading to loss of critical sensing information during disconnections and inefficiencies in data transmission.
Innovation Solution
An electronic device equipped with a processor, memory, and communication circuitry that records sensing information in a volatile memory during connected times and stores it in a non-volatile memory during disconnections, ensuring seamless transmission upon reconnection, using a method that includes establishing a communication connection, recording data, and transmitting it when the connection is re-established.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device transmits sensing information continuously to the server, then the cloud service reliability is improved, but the data loss increases during wireless communication disconnections
Solution Approach 1:
The electronic device performs preliminary action by storing sensing information in non-volatile memory before communication disconnection occurs. The processor monitors communication status and proactively saves data to persistent storage, ensuring information is preserved and can be transmitted after reconnection, thus preventing data loss during disconnection periods.
Solution Approach 2:
Non-volatile memory acts as an intermediary between the sensor and the server communication. It temporarily holds sensing information when the server is inaccessible, mediating the data flow and ensuring no information is lost during communication interruptions. The memory buffer serves as a bridge that decouples the continuous data generation from intermittent transmission opportunities.
2Loss of information
If the electronic device stores all sensing information in non-volatile memory during disconnections, then the information loss is prevented, but the device complexity increases
Solution Approach 1:
The system applies local quality by differentiating storage locations based on data requirements. Volatile memory handles frequently accessed or recently collected data during connected states, while non-volatile memory specifically stores data during disconnection periods. This localized approach optimizes each memory type's usage without requiring complete redundancy, reducing overall complexity.
Solution Approach 2:
The processor implements preliminary action by establishing a communication status monitoring mechanism that triggers appropriate storage actions. When disconnection is detected, the system proactively switches to non-volatile memory storage. This pre-planned response strategy simplifies real-time decision-making and reduces the complexity of dynamic memory management during operation.
3Speed
If the electronic device uses volatile memory for data storage, then the data transmission speed is improved, but the data loss increases when communication is disconnected
Solution Approach 1:
The system dynamically switches between volatile and non-volatile memory based on communication status. During connected states, data is stored in volatile memory for rapid processing and transmission. When disconnection is detected, the system transitions to non-volatile memory storage. This dynamic adaptation allows the system to optimize for speed when possible and for data preservation when necessary, resolving the contradiction between transmission speed and data loss prevention.
Solution Approach 2:
The storage medium parameter changes based on communication availability. The processor modifies the storage behavior by changing from volatile to non-volatile memory depending on whether the server connection is active. This parameter change allows the system to leverage the speed advantage of volatile memory during connections while utilizing the persistence of non-volatile memory during disconnections, eliminating the trade-off.
4Productivity
If the electronic device transmits data immediately when reconnected, then the productivity is improved, but the energy consumption increases due to frequent transmission attempts
Solution Approach 1:
The system performs preliminary action by accumulating data in non-volatile memory during disconnection periods rather than attempting frequent transmission. This pre-prepared data buffer allows for a single efficient transmission batch upon reconnection, improving productivity while reducing energy consumption. The preliminary data accumulation eliminates the need for repeated transmission attempts and associated energy waste.
Solution Approach 2:
The transmission operation transitions from continuous or frequent attempts to a periodic batch process. Data is collected over time in non-volatile memory and transmitted in consolidated batches when connection is available. This periodic transmission approach improves overall productivity by reducing the overhead of frequent small transmissions while lowering energy consumption through fewer communication events.
Data Source
AI summary
An electronic device comprises memory storing instructions and including a first memory and a second memory, a sensor, a communication circuit, and a processor. The instructions, when executed by the processor, cause the electronic device to: establish wireless communication connection by using the communication circuit; record in the first memory first sensing information obtained at first timing and transmit, to a server providing a service associated with the vehicle, the recorded first sensing information; recognize that the established wireless communication connection is disconnected after the first timing; record in the first memory second sensing information obtained at second timing while the wireless communication connection is disconnected, and store the recorded second sensing information in the second memory; and transmit, to the server, the stored second sensing information, in response to recognizing that the wireless communication connection is reestablished after the second timing.