Sensor Standby Control via Bidirectional Digital Line
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Solution Overview
Problem
Existing sensors in mobile electronics and wearables face high energy consumption, requiring complex additional constructional measures or communication interfaces to implement a standby mode, which increases technical complexity and power consumption.
Innovation Solution
A sensor with an integrated electronics unit and standby control circuit that enables a bidirectional digital connection line for switching between active and standby modes without additional connection points or complex communication interfaces, using a pull-up resistor and simple logic circuits to manage the standby mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If a standby mode is implemented using complex additional constructional measures or communication interfaces, then the sensor can switch between active and standby modes, but the device complexity and power consumption increase
Solution Approach 1:
The bidirectional connection line serves multiple functions: it transmits sensor data during active mode and carries standby mode control signals during standby mode. This multi-functionality eliminates the need for separate communication interfaces or additional connection points, reducing both device complexity and power consumption while enabling effective standby mode operation
Solution Approach 2:
The patent combines the data transmission function and standby control function into a single bidirectional connection line. By merging these functions, the patent avoids adding separate communication interfaces or control lines, thereby reducing device complexity and interconnection complexity while enabling low-power standby operation
2Ease of operation
If additional connection points or complex communication interfaces are added to implement standby mode, then the sensor can be switched to standby mode, but the interconnection complexity increases
Solution Approach 1:
The bidirectional connection line is designed to perform dual functions: transmitting sensor measurement data during active operation and carrying standby mode activation/deactivation signals during standby operation. This multi-functional design eliminates the need for additional connection points or separate communication interfaces, thereby reducing interconnection complexity while maintaining ease of standby mode control
Solution Approach 2:
The sensor system uses its existing bidirectional connection line to manage its own standby mode operation. The external unit can activate or deactivate the sensor through this connection line without requiring separate control interfaces, allowing the system to self-manage its power state using already-available infrastructure
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 solution minimizes energy consumption by reducing average current consumption by a factor of 10 to 100, simplifies integration, and reduces interconnection complexity, making it suitable for various sensors, including those in virtual reality applications, while maintaining low costs.
Implementation Method 1
The at least one sensor chip is used for the detection of a radiation
Data Source
AI summary
A sensor including at least one sensor chip for detecting a radiation; and an electronics unit with a digital, bidirectional connection line and with a standby control circuit, as well as with an active status line; wherein the connection line is configured to be connected to an external activation unit; andthe standby control circuit is configured to determine whether the connection line is externally addressed by the activation unit when the connection line is not addressed by the active status line, and precisely then to place the sensor in a standby mode.