Heartbeat Generator Automatic Control System for Pet Calming
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Solution Overview
Problem
Existing artificial heartbeat generators for pet calming products do not effectively conserve battery life and fail to distinguish between natural and external movements, leading to unnecessary operation and reduced longevity.
Innovation Solution
A heartbeat generator device with an automatic control system and sensor that selectively shuts off when no interaction is detected, using a motor and unbalanced weight to simulate heartbeats, and compensates for natural and external movements by dividing the beat interval into active and rest segments, extending operation time based on movement detection and averaging noise fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heartbeat generator operates continuously to provide constant comfort to the animal, then the calming effect is maintained, but battery life is significantly reduced
Solution Approach 1:
The heartbeat generator operates periodically rather than continuously. The control system activates the heartbeat motor only when motion is detected by the sensor, creating on-demand periodic operation. This resolves the contradiction by maintaining reliability during interaction periods while dramatically reducing energy consumption during non-interaction periods, extending battery life from potentially days to weeks or months.
2Measurement precision
If the sensor continuously monitors for movement to detect animal interaction, then interaction detection accuracy is improved, but the system cannot distinguish between heartbeat-induced movement and external movement
Solution Approach 1:
The control system segments the operation cycle into distinct phases: a heartbeat window when the motor is active and expected vibration is high, and a monitoring window when the motor is off and expected vibration is low. By analyzing sensor readings within these segmented time windows, the system can distinguish between normal heartbeat-induced movement (occurring during the heartbeat window) and external animal interaction (detectable during the monitoring window when motor vibration is absent).
Solution Approach 2:
The system uses periodic heartbeat cycles with alternating active and rest phases. During the rest phase, when the motor is not generating vibration, any detected movement must be from an external source (the animal). This periodic structure enables the sensor to differentiate between internal motor-induced movement and external animal movement, resolving the information loss problem.
3Reliability
If the heartbeat generator operates at full power to ensure strong pulsing effect, then the heartbeat simulation is more realistic, but battery life is further reduced
Solution Approach 1:
The heartbeat motor operates in periodic bursts rather than continuously at full power. Each heartbeat cycle includes an active phase where the motor runs at full power to create realistic pulsing, followed by a rest phase where the motor is completely off. This periodic full-power operation maintains heartbeat simulation quality during interaction while dramatically reducing average power consumption, extending battery life by a factor of 10 or more compared to continuous operation.
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 significantly extends battery life by only operating when interaction is detected, ensuring continuous heartbeat simulation while minimizing battery drain and improving the accuracy of movement detection to maintain comfort without unnecessary operation.
Implementation Method 1
the sensor detects movement and vibrations by opening and closing a mechanical switch
Implementation Method 2
The heartbeat generator device contains a motor and unbalanced weight to create the motion necessary to cause the heart to 'beat'
Data Source
AI summary
A heartbeat or pulse generator device is provided separately for use in or in combination with a comfort product such as a plush toy. The heartbeat generator device includes an automatic control system that provides for controlled operation of the heartbeat generator while compensating for natural movements during use. The heartbeat generator device contains a pulse generator to create the motion necessary to cause the heart to “beat” twice early in a beat interval. The heartbeat generator device to increase battery longevity by allowing the generator device to selectively shut off when it senses that the animal or other user is no longer interacting with the product. As the animal interacts, the emulated heartbeat continues. When the animal stops interacting for a period of time, the heartbeat will stop, and battery life is preserved. The heart will restart when motion is detected once again. Further, the improved device contains a sensor and control system that can sense physical movement of the heartbeat generator device while at the same time compensating for the physical movement it is itself creating with the motor to emulate a heartbeat.