Wireless Sensor Gateway Autoconfiguration via IPv6 Router Solicitation
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Solution Overview
Problem
Wireless sensor nodes face challenges in efficiently establishing connections with service servers due to resource constraints and the need for frequent wireless communications, which increases power consumption and operational time, hindering the reduction of administrative load and outsourcing of services in wireless sensor networks.
Innovation Solution
An autoconfiguration system and gateway apparatus that analyze IPv6 router solicitation and advertisement messages to acquire and set configuration information, allowing wireless sensor nodes to connect to service servers efficiently, reducing the need for direct wireless communications and enabling remote runtime configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless sensor nodes perform configuration processes directly to connect to service servers, then connection capability is improved, but power consumption increases due to increased wireless communications and operation time
Solution Approach 1:
The gateway apparatus serves as an intermediary between wireless sensor nodes and service servers. It receives router solicitation messages from sensor nodes, extracts device/service information, searches for appropriate service servers, acquires configuration information, and transfers it back to the sensor nodes. This mediation reduces the need for sensor nodes to perform extensive direct communications with servers, thereby lowering their power consumption while maintaining connection capability.
Solution Approach 2:
The gateway apparatus performs preliminary actions by pre-acquiring configuration information from service servers before sensor nodes need to use it. By searching for service servers and obtaining configuration data in advance, the system reduces the operational burden on sensor nodes during runtime, minimizing their wireless communication activity and power consumption.
2Adaptability or versatility
If wireless sensor nodes perform runtime configuration processes separately, then connection flexibility is improved, but administrative load increases
Solution Approach 1:
The gateway apparatus acts as an intermediary that centralizes the administrative functions for runtime configuration. It handles service server searching, configuration information acquisition, and transfer to sensor nodes, thereby reducing the administrative burden on individual nodes while maintaining connection flexibility through automated processes.
Solution Approach 2:
The system implements automated self-service mechanisms where sensor nodes automatically send router solicitation messages containing their device或服务 information, and the gateway automatically searches for service servers and retrieves configuration information. This automation eliminates manual configuration efforts and reduces administrative load while preserving flexible runtime configuration capabilities.
3Manufacturing precision
If the number of wireless communications is increased for configuration processes, then configuration accuracy is improved, but operation time increases
Solution Approach 1:
The gateway apparatus consolidates multiple communication functions into a single intermediary point. It receives router solicitation messages from sensor nodes, performs service server searching and configuration information acquisition, then transfers the obtained configuration information back to nodes. This approach ensures accurate configuration delivery while minimizing the total number of wireless communication rounds required.
Data Source
AI summary
The present invention enables connection between a wireless sensor node and a service server while reducing load on the wireless sensor node.The wireless sensor node transmits a router solicitation message to a gateway apparatus; the gateway apparatus analyzes the message to extract the discrete information of a device or service, searches for a service server based on such information and acquires the configuration information necessary for execution of a service application of the wireless sensor node; the gateway apparatus multicasts the received router solicitation message into a link; a router within the link receives the router solicitation message, and multicast a router advertisement message which contains the prefix information of an address, etc. into a link; the gateway apparatus sets the acquired configuration information in the router advertisement message and transfers the resultant message to the wireless sensor node; and the wireless sensor node analyzes the message.