Working Robot Battery Voltage Detection for Charging Timing
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Solution Overview
Problem
Existing working robots face challenges in determining the optimal timing for returning to a charging station, leading to battery depletion during return journeys or frequent interruptions in work due to premature returns.
Innovation Solution
The working robot employs a two-step obtainment process to detect battery voltage values while the motors are in operation and when they are not, allowing the control unit to determine the right timing for returning to the charging station based on these values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the timing for returning the working robot to the charging station is delayed, then the work continuity is improved, but the battery may run out during the return journey
Solution Approach 1:
The control unit performs preliminary voltage detection before the battery is fully depleted, obtaining voltage values at different motor operation states (working state and idle state) to calculate voltage recovery characteristics. This advance detection and calculation enables the system to predict the optimal return timing, ensuring the robot returns to the charging station with sufficient battery reserve while maximizing work continuity.
2Reliability
If the timing for returning the working robot to the charging station is advanced, then the battery availability is improved, but the work continuity is reduced due to frequent interruptions
Solution Approach 1:
The control unit continuously monitors battery voltage and uses feedback from voltage detection at different motor states to dynamically determine the optimal return timing. By calculating voltage recovery characteristics based on the difference between idle state voltage and working state voltage, the system adjusts the return decision to ensure sufficient battery reserve while minimizing work interruptions, thus balancing reliability and productivity.
3Device complexity
If the voltage detection is performed only in a single state, then the detection simplicity is improved, but the timing accuracy for returning is reduced
Solution Approach 1:
The voltage detection process is segmented into two distinct phases: detection during motor operation (working state) and detection after motor stoppage (idle state). This segmentation allows the system to capture voltage characteristics under different conditions, enabling accurate calculation of voltage recovery characteristics and precise determination of optimal return timing, while keeping each detection phase relatively simple and independent.
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 configuration ensures that the working robot returns to the charging station at the appropriate time, preventing battery depletion and minimizing interruptions in work, thereby allowing for smooth progress in tasks.
Implementation Method 1
a voltage detection unit configured to detect a voltage value of the battery
Implementation Method 2
a battery that is rechargeable and configured to supply power to the working motor and the movement motor
Data Source
AI summary
The working robot may include a working mechanism, a movement mechanism, a working motor, a movement motor, a battery configured to supply power to the working motor and the movement motor, a voltage detection unit configured to detect a voltage value of the battery, and a control unit. The control unit may be configured to obtain a detection value detected by the voltage detection unit while a target motor is in operation as a first-step voltage value, and then stop the target motor and obtain a detection value detected by the voltage detection unit while the target motor is not in operation as a second-step voltage value, and then determine whether to return the working robot to a charging station or not based on the first-step voltage value and the second-step voltage value. The target motor may be at least one of the working motor and the movement motor.