sand box providing sandbox-2d topographic rendering unit at porunai museum, tirunelveli district , physical sandbox: custom-built sandbox structure and high-performance pc: sand table depth detection control system interactive projection captures and captures target images (such as piled sand) through capture devices (somatosensory cameras). after acquisition, the software system analyses them to generate a change in the picture of the location of the captured object, bringing entertainment and fun. the system supports boundary calibration, and also supports deep learning high-performance pc for processing topographic rendering pc type: nuc processor: intel core™ i7-8559u (2.7 ghz – 4.5 ghz, quad core, 8 mb cache, 28 w tdp) operating system: windows 11 cpu model: intel core i7 (12th/13th gen, 12 cores+) graphics: iris plus graphics 655 hdmi 2.0a (4k @ 60 hz) usb-c with displayport 1.2 lan inputs: 1 × intel gigabit lan thunderbolt: 3 × thunderbolt 3 ports (up to 40 gbps) usb: 4 × usb 3.1 ports (2 rear, 2 front including one charging port) bluetooth: dual-mode bluetooth 5.0 memory storage capacity: 500 gb ram: 16 gb motherboard: intel nuc8i7beh motherboard , hardware controls: processor fan speed control voltage and temperature sensing fan sensor inputs for monitoring acpi-compliant power management control audio: 5.1 surround via hdmi headphone/microphone jack (front panel) dual-array microphones (front panel) power backup (30 minutes) numeric digital 1000 plus v ups 1000va , interactive sensor microsoft kinect for xbox one 2.0, color camera 1920 x 1080@30 fps, depth camera 512 x 424, maximum recognition distance 4.5m, minimum recognition distance 50cm, vertical angle 70° horizontal angle 60°, motor tilt not supported, number of joints detected 26, maximum number of people identified 6, usb interface 3.0 , overhead projector and accessories (transmit signal and fix equipment) high-brightness projector for map overlay, display technology: dlp, projection format:4:3, display resolution: 1024*768 dpi, brightness:3600 lumens lens projection ratio: 0.61, usb cable, hdmi cable, audio cables, and projector hanger etc., , sand pile table & dust-free projection sand (300 kg) regular size 1.6 * 1.2 * 0.55m, the projection area less than 1.6 * 1.2m , fabrication & electrical works - custom mounts, electrical integration av mounts and accessories - gloves, mounts, cabling, shielding, connectors installation, deployment and support , content and software component: the software stack employs a custom 2d rendering engine, developed in unity or python -opencv, capable of transforming live elevation data, stylized 2d topographic maps with dynamic contour lines, colour-coded elevation zones and real-time overlays, as well as synchronized control of the led system for interactive feature highlighting. user-friendly calibration tools, a reset function and a public optimized ui/ux ensure seamless interaction for both museum visitors and staff. topographic data rendering - generation of 2d visual overlays from terrain input, media & audio content ui/ux development - design of intuitive user interface, interactive map engine - real-time rendering software, sensor integration modules - middleware for lidar/kinect and led sync, system testing & qa - debugging and performance tuning testing & integration - synchronization with hardware, sensors, and lighting on-site testing, optimization, dry run, and staff briefing => limited