Wireless Tag Network Node Stunning via Neighbor Anchors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless network systems for battery-powered tags in wireless mesh networks face inefficiencies in power conservation, as they require a predetermined time to receive a stun command before transitioning back to a sleep state, which can be prolonged when information needs to be communicated, leading to potential power wastage.
Innovation Solution
Instructing neighboring anchors to stun the tag upon hearing its status message, allowing the tag to remain awake longer, thereby reducing the time required for stunning and enabling quicker return to sleep state, thus conserving power by allowing the tag to transition back to sleep sooner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the network controller sends a stun command to keep the tag awake for information transmission, then the tag can receive control information, but the tag remains awake longer consuming more power
Solution Approach 1:
The network controller pre-determines which tags need to be stunned before the tag transitions to sleep state. By preparing the stun command in advance and having anchors ready to transmit it immediately when the tag wakes up, the system ensures information can be transmitted without requiring the tag to remain awake for an extended predetermined period, thus reducing power consumption while maintaining information delivery capability.
2Loss of information
If the tag remains awake for a predetermined time to receive stun command, then the network controller can transmit information, but the time spent in awake state increases power consumption
Solution Approach 1:
The system prepares stun commands in advance at the network controller before the tag wakes up. When the tag transitions from sleep to awake state, neighboring anchors can immediately transmit the pre-prepared stun command without requiring the tag to wait for a predetermined period, thus minimizing the tag's awake duration while ensuring information delivery.
Solution Approach 2:
Neighboring anchors act as intermediaries to transmit the stun command directly to the tag as soon as it wakes up. This eliminates the need for the tag to remain awake for a predetermined time waiting for the network controller to communicate, as the anchor can immediately relay the pre-determined stun command, thereby reducing the tag's awake duration and power consumption.
3Use of energy by moving object
If the tag quickly transitions to sleep state to conserve power, then power efficiency improves, but the network controller may not have sufficient time to transmit information
Solution Approach 1:
The network controller determines in advance which tags require information transmission and prepares stun commands before the tag wakes up. This allows the tag to quickly transition to sleep state after receiving the information without needing to remain awake for an extended period, thus maintaining power efficiency while ensuring complete information transmission.
Solution Approach 2:
Neighboring anchors serve as intermediaries to deliver pre-prepared stun commands to the tag immediately upon waking. This enables the tag to receive necessary information and then quickly return to sleep state, maintaining power efficiency while ensuring the network controller's information transmission requirements are met through the anchor's immediate relay of the stun command.
Data Source
AI summary
A system for a tag includes a network controller that, when it has information to send to a tag, is configured to communicate with the tag's neighbors, such as anchors that may be used for communication between the tag and the network controller. In this regard, the network controller may instruct the tag's neighbors to stun the tag upon hearing from the tag. Thus, when the tag transitions out of a sleep state and transmits a status message or other type of message to the network controller or other resource of the network, at least one neighbor of the tag hears the message and, in response, stuns the tag so that it remains awake for a longer period of time, thereby giving the network controller sufficient time to send control information or other information to the tag. Since the neighbors are responsible for stunning the tag, the amount of time required to stun the tag after it awakens from the sleep state is decreased.