Automated Set-Top Box Software Update Testing via Network Monitoring
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Solution Overview
Problem
The existing methods for testing and verifying software updates on set-top boxes in broadcast networks are time-consuming and require manual intervention, as they involve capturing traces from serial ports, which can only be done by one engineer at a time, limiting efficiency and scalability.
Innovation Solution
A system and method for monitoring and controlling the operation of devices in a distributed network of broadcast devices, utilizing an AV decoder, a controller, and a network to transmit control and AV content data, allowing devices to respond and transmit state information, enabling real-time testing and verification of software updates across multiple devices simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual trace capture from serial port is used, then testing accuracy is maintained, but productivity is reduced due to one engineer testing one device at a time
Solution Approach 1:
The patent uses virtualization to create virtual copies of the test environment and devices, allowing multiple virtual instances to be tested simultaneously. The system virtualizes the test bed infrastructure, enabling parallel execution of tests across multiple devices without requiring additional physical hardware for each test instance.
Solution Approach 2:
The patent combines multiple testing functions into a single integrated automated test bed system. It merges device management, software deployment, trace capture, and analysis capabilities into one unified platform that can handle multiple devices concurrently, eliminating the need for separate manual testing processes for each device.
2Productivity
If automated monitoring system is implemented, then productivity increases through simultaneous testing of multiple devices, but device complexity increases due to additional monitoring infrastructure
Solution Approach 1:
The patent introduces a virtualization layer as an intermediary between the physical test bed infrastructure and the testing processes. This virtualization intermediary manages resource allocation, device provisioning, and test execution, simplifying the interface between the complex underlying infrastructure and the testing operations while enabling automated parallel testing.
3Loss of time
If manual verification process is used, then measurement precision is maintained through engineer review, but loss of time increases due to sequential testing process
Solution Approach 1:
The patent implements automated feedback mechanisms where the test bed system continuously monitors device states, captures traces, and analyzes test results automatically. The system provides real-time feedback on test outcomes, device performance, and software installation status, enabling rapid iteration and parallel testing without sacrificing accuracy through engineered review protocols embedded in the automation.
Data Source
AI summary
The invention relates to a system and method for monitoring and controlling the operation of devices in a distributed network of broadcast devices, such as Set Top Boxes (STBs). Such devices typically require periodic updates as new versions of operating software is developed. However, it is not possible to guarantee that all devices that have received an updated software version are able to operate correctly. The system initiates a test for a STB and monitors in real time the state of the STB as the software download occurs. The state of the STB is reported to a system controller and the results are output to a test engineer. Other devices in the broadcast network can be controlled by the controller and various troubleshooting or operational tests performed.