Smart Card Reader Activation Alert for Bluetooth Latency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bluetooth devices in low-power modes, such as Sniff Mode, experience delays when transitioning to Active Mode, causing sluggish performance during short communication bursts, which is a concern for user-initiated activities and applies to other wireless communication protocols as well.
Innovation Solution
Implementing activation and deactivation alerts in wireless devices to proactively transition smart card readers from low-power modes to higher-power modes when imminent communication is likely, ensuring timely responsiveness without unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If Bluetooth devices operate in low-power modes (Sniff Mode, Hold Mode, or Park Mode) to conserve battery life, then energy consumption is reduced, but communication response time increases causing sluggish performance
Solution Approach 1:
The system performs preliminary actions by having the initiating device send an activation alert before actual communication is needed. This allows the receiving device to transition from low-power mode to active mode in advance, so that when communication actually occurs, both devices are ready immediately, eliminating the sluggish response that would otherwise occur during mode transitions.
Solution Approach 2:
The system implements feedback through the activation alert mechanism, where the initiating device provides advance notice to the receiving device about upcoming communication needs. This feedback loop allows the receiving device to adjust its power state proactively, optimizing the balance between power consumption and response time based on actual communication patterns.
2Speed
If devices remain in Active Mode to ensure immediate communication responsiveness, then communication speed is improved, but power consumption increases
Solution Approach 1:
Instead of keeping devices continuously in Active Mode, the system uses preliminary action by sending activation alerts before communication is needed. This allows devices to remain in low-power modes most of the time and only transition to Active Mode temporarily when an alert is received, achieving fast communication speed only when necessary while minimizing overall power consumption.
Solution Approach 2:
The system employs periodic action by having devices alternate between low-power modes and active mode based on communication needs. Rather than maintaining continuous active state, devices periodically transition to active mode in response to activation alerts, perform communication, then return to low-power modes, optimizing the balance between communication speed and power consumption.
Data Source
AI summary
A wireless device may alert a wireless smart card reader that communication of data between the wireless device and the wireless smart card reader is probably imminent by sending an activation alert. Upon receipt of the activation alert, if the wireless smart card reader is in a low-power state, the wireless smart card reader may enter a higher-power state. If the wireless smart card reader is in the higher-power state upon receipt of the activation alert, the wireless smart card reader may remain in the higher-power state until a timeout period has expired. The wireless device may instruct the wireless smart card reader to enter the low-power state by sending a deactivation alert if the wireless device identifies that communication of data between the wireless device and the wireless smart card reader is not likely to occur within a specified period of time.