5. CONCEPT EVALUATION - P-Div-Engg-Exploration-Odd-2026-27/Repo-05 GitHub Wiki

PUGH CHART ANALYSIS

Design Objectives Weights Concept 1 (Datum) Concept 2 Concept 3 Concept 4
Safety 9 Datum 0 0 0
Ease of Use 8 Datum -1 1 0
Portability 7 Datum 1 0 1
Hand Sensor Efficiency 6 Datum -1 1 -1
Cost 4 Datum 1 -1 1
Score (+) 0 11 14 11
Score (-) 0 14 4 6
Total Net Score 0 -3 10 5

JUSTIFICATION FOR THE SCORE GIVEN

Design No. Objective Score Allocated Justification for the Score
1 Safety 1 Tank tracks provide stable movement and ESP32-S3-CAM allows effective sensing and control.
Ease of use 1 ESP32-S3-CAM can process sensor and camera data in one controller.
Portability 0 The Li-Po battery, tank tracks and additional components increase the overall size and weight.
Cost 0 ESP32-S3-CAM and multiple sensors make the design relatively expensive.
Hand sensor's efficiency 1 Camera-based hand detection combined with distance sensing provides effective hand tracking.
2 Safety 1 Wheels provide stable movement and the ultrasonic sensor can detect nearby objects.
Ease of use 0 Arduino Nano requires additional programming and separate components for different subfunctions.
Portability 0 The design uses several separate components, increasing the space required.
Cost 1 Arduino Nano, motor and ultrasonic sensor are relatively inexpensive.
Hand sensor's efficiency 0 Ultrasonic sensing can measure distance but cannot accurately identify or track the hand.
3 Safety 1 Mecanum wheels provide controlled movement in multiple directions.
Ease of use 1 ESP 32 provides a simple and widely supported control platform.
Portability 1 lipo slim batteries and compact components can make the system easy to carry.
Cost 1 ESP 32 cam and standard components can be obtained at relatively low cost.
Hand sensor's efficiency 0 The gesture sensor requires specific hand gestures and is less suitable for continuous hand tracking.
4 Safety 1 IR sensors/esp 32 cam can detect nearby objects and help the robot respond to obstacles.
Ease of use 0 The walking mechanism requires more complex mechanical control.
Portability 1 AAA batteries and compact electronics can reduce the overall size.
Cost 1 ESP32 and IR sensors are relatively affordable components.
Hand sensor's efficiency 0 IR sensor arrays have limited accuracy for identifying and continuously tracking a hand.

FUNCTION CLUSTERING

INTERACTION BETWEEN SUBSYSTEM

SUBSYTEMS

SL. No. Subsystem
1 Head system
2 Body System
3 Audio visual System

1. Subsystem 1: Head System Matrix

Interaction Subsystem 2 (Body) Subsystem 3 (Audio Visual)
Spatial Yes Yes
Data Yes Yes
Material No No

Interaction Details:

  • Sense the enviromental data to ESP32
  • ESP32 sends the degree and direction of rotation and it makes sound
  • No wires are conneted from outside

2. Subsystem 2: Body System Matrix

Interaction Subsystem 1 (Head) Subsystem 3 (Audio Visual)
Spatial Yes Yes
Data Yes Yes
Material No No

Interaction Details:

  • The ESP32 gives instruction to look for hand and rotates its head and makes sound
  • ESP32 sends speed and direction and comand to motors
  • No wires are conneted from outside

3. Subsystem 3: Audio Visual System Matrix

Interaction Subsystem 1 (Head) Subsystem 2 (Body)
Spatial Yes Yes
Data Yes Yes
Material No No

Interaction Details:

  • All sytem ssense and respond to the changes
  • The the data read is processed and the audio visual sytem gives ffeedback
  • No wires are conneted from outside