Parallel Chip Connection Detection via Bus Voltage Threshold
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Solution Overview
Problem
Current methods for detecting chip connections in printing devices are inefficient when multiple chips are involved, leading to long detection times and low efficiency.
Innovation Solution
A method and device where a controller in the printing device obtains an actual voltage value of a bus when multiple chips are connected in parallel, compares it to a pre-stored voltage threshold, and determines chip connection status, allowing for simultaneous detection and verification of multiple chips without individual testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If each chip is detected separately, then the detection method is simple to implement, but the detection time becomes long and detection efficiency becomes low
Solution Approach 1:
The patent merges the detection of multiple chips into a single parallel detection operation. By connecting multiple chips in parallel to the same bus and using a single detection instruction to check all chips simultaneously, the system achieves high detection efficiency without increasing implementation complexity. The controller sends one detection instruction and reads one voltage value that reflects the connection status of all chips.
Solution Approach 2:
The detection bus and controller serve multiple functions: they can detect the connection status of any number of chips connected in parallel, verify chip models, and retrieve material remaining amounts. This multi-functional approach allows the same detection mechanism to handle various tasks without requiring separate detection circuits for each chip.
2Productivity
If multiple chips are connected in parallel to the bus, then simultaneous detection of all chips is achieved, but the voltage value obtained represents the parallel combination rather than individual chip states
Solution Approach 1:
The patent uses a disposable detection instruction that can be sent to the bus at any time. The controller sends a detection instruction, waits for the voltage to stabilize (which occurs quickly when chips are connected in parallel), reads the voltage value, and immediately proceeds to the next detection cycle. This approach treats the voltage reading as a transient measurement that captures the parallel connection state accurately without requiring complex stabilization procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach improves detection efficiency by allowing simultaneous detection of multiple chip connections, ensuring stable connections and enabling verification and material remaining amount checks, thus enhancing user experience.
Implementation Method 1
obtaining a voltage value of the printing device when detecting that a plurality of chips connected in parallel become interfacing with the bus
Data Source
AI summary
A field of printing devices, and a method and device for detecting a connection of a chip to a printing device. A controller in the printing device obtains an actual voltage value of a bus of the printing device when it detects that a plurality of chips connected in parallel become interfacing with the bus, and compares the actual voltage value with a voltage threshold. If the actual voltage value is less than or equal to the voltage threshold, it is determined that each chip is connected to the printing device. If the actual voltage value is greater than the voltage threshold, it is determined that each chip is not connected to the printing device.