Flashing Unit Connection Detection Using Voltage Drop Sensing
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Solution Overview
Problem
Existing solutions for automatic unit flashing in the automotive industry require manual confirmation of unit connection, leading to inefficiencies and risks of human error, especially when dealing with multiple units.
Innovation Solution
A device for automatic detection of unit connection, comprising a power source, connectors, switches, a resistor, and a control unit with a communication module and evaluation module, which detects the unit connection by measuring voltage drops without requiring precise timing or knowledge of the connected unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual confirmation of unit connection is used, then the flashing process can be controlled, but the flashing time increases and the risk of human error increases
Solution Approach 1:
The system automatically detects unit connection through voltage measurement without requiring operator intervention. The control unit measures voltage at the connector, automatically determines connection status, and proceeds with flashing when connection is detected, making the system self-servicing and eliminating manual confirmation steps
Solution Approach 2:
The patent replaces the mechanical/manual button-pressing system with an electrical measurement system. Instead of manually pressing a button to confirm connection, the control unit automatically measures voltage characteristics of the connector to detect unit connection, substituting mechanical human action with automated electrical sensing
2Productivity
If multiple units are connected simultaneously for flashing, then productivity increases, but the risk of human error increases due to more manual confirmations required
Solution Approach 1:
Each connector-equipped channel automatically detects unit connection through voltage measurement without operator intervention. The control unit independently monitors each connector, automatically determines which units are connected, and manages flashing operations without requiring manual confirmation for each unit, enabling reliable multi-unit parallel processing
3Extent of automation
If automatic detection methods using PING command or message duration measurement are used, then manual confirmation is eliminated, but the device complexity increases or time measurements are required
Solution Approach 1:
The patent detects unit connection by measuring voltage parameter at the connector. When a unit is connected, the voltage characteristic changes (voltage drop occurs), providing a simple binary indication of connection status. This single parameter measurement approach avoids complex multi-parameter analysis while achieving reliable automatic detection
Solution Approach 2:
The invention uses a simple, inexpensive voltage measurement approach rather than complex communication protocols or timing mechanisms. The detection method is straightforward and cost-effective, using basic electrical measurement capabilities already present in flashing devices
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
The solution streamlines the flashing process by eliminating the need for manual confirmation, reducing the risk of human error, and allowing for easy implementation and cost-effectiveness, while supporting both parallel and sequential flashing of multiple units.
Implementation Method 1
it is connected via the second connector to the power cable at a place between the first connector and the node where the first branch of the parallel connection and the second branch of the parallel connection are connected. Further, the control unit comprises a communication module for sending a message to the first connector and an evaluation module for determining whether the unit intended for flashing is connected to the first connector, based on a drop in voltage value
Data Source
AI summary
The object of the invention is a device and method for automatic detection of the connection of a unit (1) intended for flashing. The device comprises a power source (2) and a first connector (3) for connecting the unit (1) intended for flashing. The device further comprises a second connector (4) connected to the first connector (3), a control unit (5) connected to the second connector (4), a first switch (6), a second switch (7), and a first resistor (8), wherein the first switch (6) and the second switch (7) are connected in parallel between the power source (2) and the first connector (3). The first resistor (8) is connected in one branch of the parallel connection. The control unit (5) is connected to the first switch (6) and the second switch (7) and comprises a communication module for sending a message to the first connector (3) and an evaluation module for determining whether the unit (1) intended for flashing is connected to the first connector (3), based on a drop in the voltage value at a place between the first connector (3) and the node where the branches of the parallel connection are connected.