Vehicle-Mounted Data Delivery for Sensor Networks
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Solution Overview
Problem
Existing sensor network technologies are limited in delivering data between nodes of a single network, and a mobile sink cannot effectively communicate with sensor nodes in all regions, especially when the sink is moved outside wireless communication range.
Innovation Solution
A method and apparatus that utilize a vehicle-mounted data delivery system, which receives data from a transmission node, calculates an optimum path based on destination information, selects an appropriate means of transportation, and delivers data to the target destination by comparing movement paths and determining the most efficient vehicle for data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed sink is used as a routing method in a single sensor network, then data delivery within the network is reliable, but data delivery between different sensor networks or to distant destinations is limited
Solution Approach 1:
The patent introduces mobile means of transportation (vehicles, boats, aircraft) as intermediary carriers that physically transport data between sensor networks. The data is transferred from transmission nodes to the mobile carrier, which then delivers it to destination nodes in different networks, acting as a mediator that bridges isolated sensor networks.
Solution Approach 2:
The patent extends data delivery from the two-dimensional wireless communication space to three-dimensional physical transport space. By utilizing mobile carriers that move through physical space, the system enables data delivery across regions that are inaccessible through wireless communication alone, adding a spatial dimension to the delivery architecture.
2Adaptability or versatility
If a mobile sink is used to support sink mobility, then data delivery adapts to moving destinations, but communication fails when the sink moves outside wireless communication range
Solution Approach 1:
The mobile means of transportation serves as an intermediary that takes over the communication function when wireless communication becomes unreliable. Instead of relying on the mobile sink to maintain wireless connectivity, the system transfers data to the transport carrier, which physically carries the data regardless of wireless signal availability.
Solution Approach 2:
The system dynamically switches between wireless communication mode and physical transport mode based on the mobility state and communication conditions. When the sink is within wireless range, normal communication occurs; when it moves outside range, the system activates the physical transport mechanism to maintain data delivery.
3Device complexity
If data is delivered only within a single sensor network, then the system is simple to implement, but it cannot deliver data between different sensor networks or to distant locations
Solution Approach 1:
The mobile means of transportation is designed to serve multiple functions: it acts as a data carrier between sensor networks, provides extended communication range, and enables delivery to distant destinations. This multi-functional approach allows a single system to handle both intra-network and inter-network data delivery requirements.
4Reliability
If sensor nodes are activated continuously to ensure data delivery, then data delivery is reliable, but energy consumption increases
Solution Approach 1:
Instead of continuous activation, sensor nodes operate periodically or on-demand. Nodes activate only when data needs to be transmitted, transfer data to passing mobile carriers, and then enter low-power states. This periodic operation maintains data delivery capability while significantly reducing energy consumption compared to continuous activation.
Data Source
AI summary
The present invention relates to a method and apparatus for delivering data based on a sensor network. According to an embodiment of the present invention, the apparatus for delivering data is provided in a means of transportation such as a vehicle, activates a node of a corresponding sensor network when a vehicle enters a road segment, and receives data from the transmission node. Then, the apparatus for delivering data calculates an optimum path along which the received data is delivered to a target destination, determines whether to use other vehicles or to directly deliver the data to the target destination on the basis of the calculated optimum path, and delivers the data to the target destination by the determined method. In this case, the target destination to which the data is delivered may be a different node of the same sensor network, or may be a node or a center of a different sensor network.