Problem Title

Design and Development of a Precision Guidance Kit with Canard Actuation and Multi-Mode Electronic Fuze for a 155 mm Artillery Shell.

Background

Conventional 155 mm artillery shells rely on unguided ballistic trajectories, resulting in relatively high Circular Error Probable (CEP), particularly at long ranges.

Improving strike accuracy while utilizing existing shell hardware can significantly enhance operational effectiveness, reduce ammunition consumption, and minimize collateral damage.

The YIL (Yantra India Limited) possesses extensive expertise in manufacturing the mechanical hardware of 155 mm artillery shells and seeks innovative solutions to transform conventional shells into precision-guided munitions through the integration of an advanced guidance and fuze system.

Problem Statement

Develop a compact, robust, and cost-effective precision guidance solution for a standard 155 mm artillery shell by integrating: A Canard Actuation Assembly (CAA) for in-flight trajectory correction.

A Guidance,Navigation and Control (GNC) system capable of improving terminal accuracy.

A Multi-mode Electronic Fuze supporting Proximity Mode Time Mode Impact Mode Embedded electronics and software for real-time flight control.

Power management suitable for high-g launch and flight conditions.

Communication and programming interface for fuze configuration prior to firing.

The integrated system should achieve a Circular Error Probable (CEP) of 30 meters or better, while maintaining compatibility with the existing 155 mm shell design and surviving the extreme mechanical and environmental conditions experienced during artillery launch and flight.

Expected Outcome

Participants should propose a complete system architecture including: Guidance and navigation methodology.

Canard deployment and actuation mechanism.

Flight control algorithms.

Multi-mode electronic fuze design.

Sensor selection (e.g., IMU, GNSS, barometric sensor, proximity sensor, etc.).

Embedded hardware architecture.

Power supply and environmental protection strategy.

Simulation and validation methodology.

Manufacturability and cost optimization.

Desired Deliverables

Constraints

Skills Expected from Participants

Background

Workers in oil and gas operations face chronic low-level H2S exposure. Standard electronic gas detectors miss this risk because they only report instantaneous ppm, and they need batteries, calibration and upkeep. Passive colorimetric badges already exist, usually lead-acetate based, but they only give a rough visual read, exposed past threshold or not, judged by eye. There's no way to know the actual cumulative dose, concentration multiplied by time, and no way to confirm the badge itself hasn't already expired or degraded before it's worn. India has no low-cost, indigenous, digitally-read passive dosimeter for this. Peak-exposure alarms are not what protects long-term health. Cumulative dose is.

Description

The idea is a disposable wristband with an indigenously formulated chemical strip that darkens progressively and permanently with cumulative H2S exposure, not just past one threshold. The strip sits next to a printed reference color scale, and separately, a second patch that shows the badge's own shelf life. Something a worker or safety officer can glance at before a shift to confirm the badge itself is still valid. A phone app does the reading. Photograph the strip next to the reference scale, and the app corrects for whatever lighting the photo was taken in by calibrating against that reference. It converts the color into an estimated cumulative exposure figure and logs it against worker ID and shift, for occupational health records and DGMS or OISD style reporting. The dose figure should be presented as an estimate, since colorimetric reactions don't scale perfectly linearly at very low concentrations or over long durations. Temperature and humidity affect reaction speed too, so the strip design needs to account for that, either through a sealed reference cell or a compensation method in the app.

Expected Solution

A working wristband prototype, chemical strip plus a separate expiry indicator, along with a phone app that reads and quantifies exposure from a photograph. Tested against a controlled, lab-simulated H2S exposure at known concentration and duration, with a stated and validated shelf life, 30 or 90 days for example, and a dose estimate that tracks reasonably close to the known simulated exposure.

Background

The Infrasound sensors are precision instruments designed to detect and measure low frequency atmospheric pressure waves, known as infrasound, that fall below the range of human hearing, typically under 20 Hz. These waves can travel long distances through the atmosphere and are produced by a variety of natural and human-made sources including distant Industrial explosions, volcanic eruptions, severe weather systems, meteors, rocket launches, and other energetic phenomena. Detection and analysis of these signals are important for atmospheric monitoring, geophysical research, disaster warning systems and security applications.

Description

It is required to design and develop a high-sensitivity atmospheric microbarometer Infrasound sensor capable of measuring infrasonic pressure fluctuations in the frequency range of approximately 0. 01 Hz to 20 Hz. The sensor should address the complete hardware architecture, including: (a). Pressure sensing mechanism. (b). Mechanical transducer design. (c). Differential pressure measurement technique. (d). Low-noise analog front-end electronics. (e). Temperature compensation. (f). Long-period pressure equalization system. (g). Environmental enclosure. (h). Wind-noise reduction interface. (i). Calibration methodology. The design should aim to detect very small pressure variations while maintaining long-term stability, low drift, and high signal fidelity. The data acquisition (digitizer) and real time waveform display & analysis software available in open market to be included to demonstrate complete functional sensor system.

Expected Solution

The prototype infrasound sensor should have high sensitivity, long-term stability and low-noise signal condition to measure infrasound signals accurately. Sensor should demonstrate (a). Detection of low-frequency pressure signals. (b). Laboratory characterization of frequency response. (c). Noise floor measurements. (d). Sensitivity estimation. (e). Stability testing. The evaluation will be conducted based on the achievement of the following parameters Attach Table Here The digitizer and data acquisition software (available in open market) for real time waveform display & analysis will be arranged by candidates themselves to demonstrate the complete functional sensor system.

Background

As voice-controlled IoT proliferate, processing everything in the cloud is too costly, privacy-invasive, and slow. The future belongs to hybrid architectures where the edge handles the initial 'wake-up' and the cloud handles the heavy lifting.

Description

Build an ultra-lightweight, highly accurate keyword spotting (KWS) model that runs locally on a low-power device. Upon detecting the keyword, the system must instantly and efficiently stream the subsequent audio to a remote Automated Speech Recognition (ASR) server with minimal data overhead and latency. Key Metrics for Evaluation Efficiency Model size (RAM/Flash footprint) and CPU usage during idle listening. Accuracy High true-positive rate for the keyword with near-zero false activations. Latency The time delta between the keyword ending and the cloud ASR receiving the audio stream. Software & Framework Restrictions Open-Source Only The use of proprietary, closed-source, or commercial voice-activation SDKs is strictly prohibited. Allowed Frameworks Teams must build their keyword spotting (KWS) pipelines using open-source machine learning and TinyML frameworks. Recommended tools include TensorFlow Lite for Microcontrollers, PyTorch Mobile or similar. No Pre-Trained Global Keywords Teams cannot use models pre-trained on generic smart-assistant keywords like 'Hey Google' or 'Alexa'. They need to train on a custom key word.

Expected Solution

Teams are expected to deliver a robust, deployable system architecture. A successful submission must strictly satisfy the following technical boundaries: Hardware & Runtime Environment: The edge software application must run smoothly within an environment restricted to less than 256KB of RAM and consume under 10% CPU utilization while idling in continuous listening mode. Heavy or uncompressed pre-trained transformers are disqualified. Solutions will be formally evaluated on physical low-power microcontrollers (e.g., Raspberry Pi or ESP32). Model should work for the given custom key word.

Background

During high-intensity urban counter-terrorism (CT) and Close-Quarter Battle (CQB) operations, the National Security Guard (NSG) operates in highly restrictive indoor spaces like closed rooms, basement areas, narrow corridors and stairwells. For seamless communication, commandos rely on vest-mounted handheld tactical radios. These systems traditionally use rigid, protruding omnidirectional whip antennas mounted on top of the radio itself. In fast-paced operations in confined spaces, these external whip antennas not only restricts ranges but also present an obstruction or cause frequent snagging on obstacles like door frames, windows or loose and hanging objects which can damage the the radio interface or obstruct his tactical movement.

Description

Traditional whip antennas pose significant operational limitations. When an assault team enters a reinforced concrete or steel/glass-framed building, the RF signals radiated from a vest-mounted antenna suffers from severe attenuation and fading as the signals are tend to be blocked by virtue of its low positioning. Additionally, omnidirectional radiation patterns make the team vulnerable to electronic eavesdropping or directional tracking by sophisticated adversaries. To address these challenges, the antenna system needs to be elevated to the highest physical point of the commando the helmet without adding bulk or altering ballistic integrity. There is an immediate requirement to develop a low-profile, flexible conformal antenna array that integrates seamlessly into or onto tactical ballistic helmets while maintaining high gain and minimal protruding hardware.

Expected Solution

A ruggedized, zero-profile wearable antenna system should be developed with the following parameters:

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