Page 17 - IJAMD-1-3
P. 17

International Journal of AI for
            Materials and Design
                                                                              Smart cockpit design with generative models


            allow for comprehensive state monitoring (e.g., emotion   deep learning algorithms. In this framework, the MAS
            recognition, fatigue detection, stress monitoring,   comprises a  perception agent,  a decision-making  agent,
            and health assessment) and enable personalized     and an execution agent. The perception agent employs
            adjustment to the passenger’s condition. This      generative models to collect visual information and
            significantly enhances the mobility experience, safety,   recognize the surrounding environment. The decision-
            and efficacy of personalized regulation strategies. The   making agent generates personalized driving strategies
            collection of user data through sensors (e.g., wearables,   based on the driver’s identified driving style and real-time
            cameras,  microphones)  supports  the  construction  and   environmental conditions. Multi-modal feedback, such as
            maintenance of the HDT model, ensuring continuous   voice reminders and visual cues, is provided to the driver.
            updates that accurately reflect users’ physiological and   For example, if the driver’s HDT model identifies an
            mental status in real time.                        aggressive driving style and the perception agent detects
                                                               that the driver is currently navigating in rainy weather with
              MASs comprise a perception agent, a decision-making
            agent, and an execution agent. The perception agent is   care and several pedestrians crossing the road ahead, the
                                                               decision-making agent generates a deceleration command
            responsible for monitoring and collecting user status and   to remind the driver to stay focused. The executive agent
            intensity information. The decision-making agent analyzes   then issued a voice alert to the driver, stating, “There are
            this status information and devises regulation strategies. The   pedestrians ahead; please slow down to 30 km/h and pay
            execution agent is tasked with the actual implementation   attention to safety.”
            of conditioning measures, such as  adjusting music or
            providing health reminders and rest advice to drivers or   4. Case study
            passengers. The HDT detects user states and transmits this
            information to the perception agent of the MAS, ensuring   In this section, we leverage the proposed CockpitGemini
            that the decision-making and execution agents base their   personalized design methodology to execute a personalized
            decisions  and  operations  on accurate and  up-to-date   product design and present a case study focusing on the
            information. For instance, the perception agent detects the   personalized automobile seat design to showcase the
            frequency of the driver’s eye and head movement in real   viability of the proposed approach within a targeted
            time and determines that the driver may be experiencing   context. It is demonstrated from the following two aspects:
            fatigue. This status information is then broadcast to   individual HDT construction and generative model-based
            all related agents. Based on the recognized fatigue and   MAS for personalized seat design, respectively.
            intensity of the driver, the decision-making agent decides   4.1. Individual HDT construction
            to implement measures such as adjusting the seat angle,
            playing  soothing  music,  initiating  proactive,  empathetic   We employed a vision-based HDT modeling approach
            speech, and adjusting the vehicle’s interior lighting. These   to capture customers’ RGB-D data in real time using an
            tasks are assigned to different execution agents, such as the   Azure Kinect camera, establish individualized human
            seat control agent, the entertainment system agent, and   meshes, and perform ergonomic analysis in a virtual
            the environment control agent. Each execution agent then   environment. The implementation details of the vision-
            takes actions to adjust interior temperature and lighting,   based HDT modeling approach are depicted in Figure 4.
            play soothing music, and adjust the seat angle according   The model comprises an advanced convolution neural
            to the instructions. The perception agent continuously   network backbone, a body part segmentation branch, and
            monitors the driver’s status and transmits feedback to the   an ergonomics branch. The input data consists of RGB-D
            decision-making intelligence, which adjusts the strategy   information on the human’s various gestures. Subsequently,
                                                                                                51
            based on this feedback to ensure that the passengers regain   a high-resolution network (HRNet-W32 ) is utilized to
            their comfort.                                     develop the body segmentation and ergonomics branches,
                                                               fulfilling the perceptual requirements  of the  HDT
            3.2.4. Personalized driving strategy recommendations  modeling process. This results in the creation of a highly
            The integration of the HDT model and the MAS can   personalized human model. The HDT perception model
            recommend personalized driving strategies to drivers.   is implemented utilizing the widely adopted PyTorch deep
            Historical driving behavior data, including metrics such   learning framework, with Nvidia RTX 3090 GPU providing
            as driving speed, acceleration, gas pedal angle, brake pedal   enhanced hardware acceleration. The Adam optimizer is
                                                                                              -
            frequency and force, and steering angle, are collected to   employed with a learning rate of 5 × 10 ⁵, a batch size of 2,
            construct an HDT model. These data are then classified   and a total of 100 training epochs.
            into different driving styles (conservative, aggressive,   Regarding the part segmentation branch, we introduced
            and moderate) using advanced machine learning and   a body part attention mechanism to construct an HDT


            Volume 1 Issue 3 (2024)                         11                             doi: 10.36922/ijamd.4220
   12   13   14   15   16   17   18   19   20   21   22