Develop Occupant Location: New Sensing Tech
Introduction - Feature Architecture
Discover Occupant Location Function
Sequential to the discussion on the topic of Occupant Sensing Functions, the Occupant Location Function emerges as a pivotal component derived from the foundational Presence Detection function. This function, vital for both traditional and emerging autonomous vehicles, hinges on the determination of an initial presence, predicated upon predefined occupant attributes.
Defining Occupant Location Function for Vehicle Passive Safety Features
The crux of this function lies in its ability to ascertain the location of the “incoming alive object” within the vehicle’s interior, based on the Vehicle Seat Map. However, due to the dynamic nature of this assessment, the readiness to output the final location signal is contingent upon the completion of movement. Consequently, the development of signal outputs necessitates a nuanced understanding of various factors.
Firstly, the technology employed must facilitate data acquisition prior to the entry of the occupant into the vehicle interior or, at the very least, upon crossing the interior boundary. This entails ensuring momentous power availability for initial sensing and defined a suitable field of view for sensor selection to accommodate signal output commands across different object locations.
Moreover, the capability to provide signal outputs must account for various object conditions relative to their final seated position. This includes approximating the object’s location before entry, which is crucial for functions such as Vehicle Intrusion detection, and within the interior, essential for functions like Seat Belt monitoring. Subsequently, readiness for the final seated position output, verified seat location, and confirmation of proper seat occupancy become imperative for Passive Safety functions.
Furthermore, the timing requirements for each signal output, contingent upon governing features, remain to be determined. These temporal nuances are crucial for ensuring the efficacy of occupant safety features.
References:
Development of the Presence Detection Function: https://georgedallen.com/develop-presence-detection-new-occupant-sensing-tech/
Passive Safety Features: https://georgedallen.com/evolution-of-occupant-safety-systems-in-the-vehicle-development/
The Significance of Occupant Location System Function
The significance of the Occupant Location System Function lies in its pivotal role as the primary derivative for detecting the presence of occupants within the sensors’ “Field of View.” This function operates sequentially, initiating the process of identifying alive presence within its scope. To accomplish this task effectively, the algorithm governing this function must meticulously consider three major factors.
Firstly, it must account for the behavior of incoming alive objects, ensuring accurate detection regardless of movement patterns or entry points. Secondly, it must incorporate the current status and condition of the vehicle, including power availability and operational states such as idling or movement (e.g., shifting out of “Park”). Finally, the executive logic governing power initiation for the system, data acquisition (criteria), and response to situational or environmental variables must be finely tuned to ensure reliable performance.
By mastering the intricacies of occupant presence detection and location, the Occupant Sensing System enhances passive safety functionalities within the vehicle. Moreover, it serves as a valuable asset by feeding critical data to various feature functions, thereby enriching the overall safety and utility of the vehicle.
Unlocking the Core of System Development: Possible Conditions and Location Designation
Utilizing the preliminary developed “Vehicle Seat Map” serves as a valuable tool in aiding the determination of occupant location throughout the ongoing data acquisition and processing stages. To streamline this process, designated positions or locations within the vehicle can be established, drawing insights from visual examples for clarity. This approach facilitates a systematic approach to occupant location determination, enhancing the efficiency and accuracy of the overall system development process.
Notes: Development of the Vehicle Seat Map for the Features' Logic / Function
Following the system’s logic, the process of occupant location determination unfolds systematically. Upon detecting the presence of an alive object, immediate location approximation becomes feasible within established field of view. This preliminary determination can even occur before the object enters the vehicle, albeit with some degree of approximation due to ongoing motion. Subsequently, as data acquisition and processing continue, the system cycles through sensor logic, accumulating additional data points to refine the location estimate. An intermediate or approximate location within the cabin can then be ascertained before movement completion.
Upon the conclusion of movement, a verifiable location signal output is generated, indicating the precise position of the body relative to designated locations on the map. However, should the occupant move again, the algorithm governing occupant location determination must recommence its operation, ensuring continuous and accurate tracking throughout the cabin. This systematic approach enhances the effectiveness and reliability of occupant location systems within vehicle systems engineering.
Notes on the Potential AI Application
In addition, the scenarios / conditions at which the processing of the data may take place have to be comprehended and recorded for the simulation purposes. This leads to the development of the library of potential test and evaluation cases, related to possible failure modes. Suffice to say, such comprehensive development requires parallel development of the Simulation technology (Virtualization set), which would be helpful for both sides: Development of the Safe and Quality Product, as well as the Simulation / Verification of the intended performance.
This is a great opportunity to utilize the AI Tools for the development of the preliminary necessities, as well as the executive algorithms. See references.
References.
Development of the Prerequisites: https://georgedallen.com/development-of-the-prerequisites-new-passive-safety-features/
Virtual Development: https://georgedallen.com/virtual-development-embracing-tomorrow-today/
“Virtualization” definition: https://en.wikipedia.org/wiki/Virtualization
Conclusion: Ensuring Optimal Occupant Location Functionality
In conclusion, ensuring Occupant Location functionality is paramount for various feature functions within vehicle systems. The Occupant Sensing System must possess the capability to promptly provide an approximate location upon detecting the presence of an alive occupant, leveraging sophisticated data acquisition and processing algorithms. The conditions dictating signal output to the interfaces are defined by governing features, ensuring seamless integration with system requirements. This parallels the conclusions drawn for the Presence Detection function, see the Reference link), emphasizing the importance of accurate and timely delivery of Signal Outputs.
Moreover, the utilization of verifiable occupant location providing invaluable information for passive safety features / functions, like notification and management features related to seat belts and airbags. By prioritizing the optimization of Occupant Sensing System, vehicle systems engineering can enhance overall safety and functionality, ushering in a new era of automotive innovation.
Reference to Systems Engineering Method: https://georgedallen.com/systems-v-model-strategy-in-automotive-design/
About George D. Allen Consulting:
George D. Allen Consulting is a pioneering force in driving engineering excellence and innovation within the automotive industry. Led by George D. Allen, a seasoned engineering specialist with an illustrious background in occupant safety and systems development, the company is committed to revolutionizing engineering practices for businesses on the cusp of automotive technology. With a proven track record, tailored solutions, and an unwavering commitment to staying ahead of industry trends, George D. Allen Consulting partners with organizations to create a safer, smarter, and more innovative future. For more information, visit www.GeorgeDAllen.com.
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