Wireless Test System Control Channel RF Level Segmentation
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Solution Overview
Problem
Existing test systems for low energy wireless communication devices face challenges in maintaining reliable connections at low signal levels, often requiring physical connections that are time-consuming and restrictive, and may lose wireless connections when testing at very low signal levels.
Innovation Solution
A test system utilizing a wireless connection with a control channel and at least one test channel, where the RF level of the control channel is higher than the test channel, allowing for reliable testing of low energy communication properties without physical connections, using Bluetooth Low Energy protocol and adjusting RF levels to maintain connection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a physical connection is used to control the electronic device during testing, then the control reliability is improved, but the testing time increases and the testing area is restricted
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. The test instrument and device under test communicate via wireless signals, eliminating the need for physical cable connections while maintaining control functionality. This substitution resolves the contradiction by removing the time-consuming cable connection step while preserving control reliability through reliable wireless communication protocols.
Solution Approach 2:
The patent introduces a wireless communication channel as an intermediary between the test instrument and the device under test. This intermediary enables control and data transmission without direct physical contact, allowing testing to proceed without cable connections while maintaining system control. The wireless channel acts as a mediator that transfers control signals and test data without the constraints of physical connections.
2Reliability
If a physical connection is used to control the electronic device during testing, then the control reliability is improved, but the testing area is restricted
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. The test instrument and device under test communicate via wireless signals, eliminating the need for physical cable connections while maintaining control functionality. This substitution resolves the contradiction by removing the cable length constraint that limits testing area, allowing the device to be tested at any location within wireless range while preserving control reliability through reliable wireless communication protocols.
3Measurement precision
If testing is performed at very low signal levels using a wireless connection, then the testing accuracy is improved, but the wireless connection may be lost
Solution Approach 1:
The patent segments the wireless communication channels into two distinct types: a control channel operating at higher signal levels to maintain connection reliability, and test channels operating at lower signal levels to enable accurate testing. This segmentation allows the system to simultaneously achieve both connection reliability and testing accuracy by assigning different functions to different channels with appropriately optimized signal levels.
Solution Approach 2:
The patent applies different signal quality characteristics to different communication channels. The control channel uses higher signal levels optimized for reliable connection maintenance, while the test channels use lower signal levels optimized for accurate low-signal testing. This local differentiation of channel qualities allows the system to achieve both connection reliability and testing accuracy without compromise.
4Reliability
If the RF level of the test channel is increased to maintain wireless connection, then the connection reliability is improved, but the testing accuracy at low signal levels deteriorates
Solution Approach 1:
The patent segments the wireless communication channels into a control channel for connection maintenance and test channels for measurement. The control channel operates at higher RF levels to ensure connection reliability, while the test channels operate at lower RF levels to enable accurate low-signal testing. This segmentation resolves the contradiction by separating the functions of connection maintenance and measurement into different channels with appropriately optimized signal levels.
Solution Approach 2:
The patent applies different signal quality characteristics to different communication channels. The control channel uses higher signal levels optimized for reliable connection maintenance, while the test channels use lower signal levels optimized for accurate low-signal testing. This local differentiation of channel qualities allows the system to achieve both connection reliability and testing accuracy without compromise.
Data Source
AI summary
A test system for testing a device under test is described. The test system includes a testing module and the device under test. The testing module is configured to establish a wireless connection with the device under test based on a wireless communication standard having a low energy protocol. The wireless connection includes a control channel and at least one test channel. The control channel is configured to transmit at least one control message between the testing module and the device under test. The at least one test channel is configured to transmit data packages between the testing module and the device under test, wherein an RF level of the control channel is higher than an RF level of the at least one test channel. Further, a testing method for testing a device under test is described.