Removable Hearing Protector Sensor Modules for Compact Retrofitting
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Solution Overview
Problem
Existing hearing protectors face challenges in integrating multiple sensors for environmental and physiological monitoring in a cost-effective and compact manner without compromising user comfort, and there is a need for an easy and reversible retrofitting solution to enhance their functionality.
Innovation Solution
A hearing protector design with removably attachable sensor modules that integrate cushion and cup sensors, processing units, and power supplies, allowing for easy retrofitting and flexible sensor configurations, utilizing various attachment means and wireless connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are integrated into the hearing protector to monitor environmental and physiological parameters, then the functionality and information gathering capability are improved, but the device complexity and size increase
Solution Approach 1:
The sensor module is divided into separate functional components: cushion sensors integrated into the cushion material, cup sensors mounted on the cup structure, and a central processing unit. This segmentation allows each sensor type to be optimized independently and simplifies the overall electronic architecture by distributing sensing functions across multiple locations rather than consolidating all sensors on a single complex circuit board
Solution Approach 2:
The sensor module is designed with multi-functional capabilities where a single integrated module can perform multiple sensing functions (temperature, humidity, pressure, sound) through different sensor types working in conjunction. This universal approach reduces the need for separate dedicated circuits for each sensing function, thereby reducing overall device complexity while maintaining versatile monitoring capabilities
2Adaptability or versatility
If multiple sensors and electronic components are added to the hearing protector, then the monitoring capability is improved, but the weight and force on the head increase
Solution Approach 1:
Sensors are strategically placed only where needed for optimal monitoring: cushion sensors are positioned at contact points with the ear to detect local pressure and temperature, cup sensors are placed to capture ambient sound and environmental conditions. This localized sensor deployment minimizes the total number of sensors required while ensuring monitoring capability is concentrated where most valuable, thereby reducing overall weight
Solution Approach 2:
The patent replaces traditional mechanical sensor mounting structures with magnetic attachment systems and adhesive bonding. This substitution eliminates the need for heavy metal brackets, screws, and complex mechanical fastening mechanisms, significantly reducing the weight of the electronic components while maintaining secure attachment of the sensor module to the hearing protector structure
3Reliability
If sensors are permanently integrated into the hearing protector, then the reliability of data collection is improved, but the ease of repair and sensor upgrades is reduced
Solution Approach 1:
The sensor module is designed with dynamic reconfigurability through magnetic attachment mechanisms that allow sensors to be easily detached and reattached. This dynamic design enables maintenance personnel to quickly replace faulty sensors or upgrade to newer sensor technologies without permanent integration, while magnetic attachment ensures reliable electrical and mechanical connections during normal operation. The system transitions between a stable operational state and an easily maintainable state as needed
Solution Approach 2:
A magnetic intermediary layer is introduced between the sensor module and the hearing protector structure, serving as a detachable connection medium. This magnetic intermediary maintains reliable electrical contact and mechanical stability during use, yet allows for easy separation when repair or upgrade is needed. The intermediary layer acts as a buffer that preserves data collection reliability during operation while facilitating simple maintenance activities
Data Source
AI summary
The present disclosure relates to a hearing protector (10) with a sensor module (30) having a module sensor (32). The sensor module (30) is removably attached to the cushion (22, 24) and the cup (12A, 14A) of the earmuff (12, 14) of the hearing protector (10). The hearing protector (10) according to present disclosure allows the arrangement of sensors at a hearing protector (10) in an easy and cost-efficient way even with multiple sensors. The advantage of such a hearing protector (10) is an easy, compact and reliable solution of a hearing protector (10) providing information about the environment and about the conditions of the user (100) or worker using such a hearing protector (10). Also, a method of retrofitting such a sensor module (30) to a hearing protector (1) is provided. Such a method is advantageous because reversible retrofitting of existing hearing protectors (1) not having the required functionality of sensors is provided.