Executive Summary
This case study presents DigiSen, an IoT-enabled Indoor Air Quality Monitoring solution developed by Dotcom IoT to provide real-time visibility into indoor environmental conditions. Leveraging intelligent sensing, LoRaWAN-based connectivity, cloud infrastructure, and centralized analytics, the platform enables proactive environmental monitoring and management across commercial, residential, and industrial environments.
By delivering continuous monitoring, real-time insights, and actionable environmental intelligence, DigiSen helps organizations improve occupant well-being, enhance operational efficiency, and support data-driven facility management.
Client Overview
The client is focused on delivering intelligent indoor environmental solutions across commercial, residential, and industrial sectors. As awareness of the impact of indoor air quality on health and well-being continued to grow, they sought a smart monitoring solution that could provide continuous visibility into indoor environmental conditions and support informed decision-making for healthier spaces.
The Challenge: Achieving Healthy Indoor Environments
Maintaining healthy indoor environments requires continuous visibility into air quality conditions. However, conventional monitoring approaches often lacked comprehensive environmental insights and centralized management capabilities, making it difficult to proactively identify and address indoor air quality concerns.
Key Challenges Included:
- Limited visibility into indoor environmental conditions due to fragmented or insufficient monitoring capabilities.
- Delayed detection of air quality issues caused by the absence of real-time monitoring and alert mechanisms.
- Difficulty in centrally monitoring and managing environmental data across multiple buildings, floors, and facilities.
- Limited access to historical environmental data for reporting, trend analysis, and performance evaluation.
- Insufficient actionable insights to support proactive environmental management and informed decision-making.
Development Challenges
Sensor Selection and Calibration : Selecting suitable sensors while maintaining measurement accuracy was a key challenge. Extensive testing and calibration were required to ensure reliable performance across different indoor environments.
Environmental Compensation and Data Accuracy : Temperature and humidity variations can impact sensor readings. Compensation mechanisms were implemented to maintain consistent and accurate measurements.
Threshold-Based Alert Management : Defining appropriate thresholds for different air quality parameters was essential to enable timely alerts while reducing false notifications.
Compact Enclosure Design : Integrating multiple sensors and electronic components into a compact enclosure required careful design to maintain proper airflow and accurate sensing performance.
Power Efficiency and Battery Optimization : Continuous monitoring and wireless communication demanded efficient power management. By implementing ultra-low-power operating modes, the system achieved sleep-mode current consumption as low as 4 µA, helping maximize battery life without compromising functionality.
Scalable Data Management : Supporting multiple devices across buildings, floors, and rooms required a scalable platform capable of handling real-time monitoring, data storage, and analytics.
The Solution: DigiSen Indoor Air Quality Monitoring Platform
To address the challenges of indoor environmental monitoring, Dotcom IoT developed DigiSen, an IoT-enabled Indoor Air Quality Monitoring platform that provides continuous visibility into indoor environmental conditions. The solution combines intelligent sensing, LoRaWAN-based connectivity, cloud infrastructure, and centralized analytics to deliver real-time environmental insights across commercial, residential, and industrial environments.
By continuously monitoring critical environmental parameters and centralizing data through a unified platform, DigiSen enables organizations to proactively manage indoor air quality, improve occupant well-being, and support data-driven facility management.
Key Solution Highlights
- Real-time visibility into indoor air quality and environmental conditions.
- Reliable long-range connectivity through LoRaWAN mesh networking.
- Centralized monitoring and management across multiple locations.
- Simplified device management at building, floor, and room levels.
- Historical insights for trend analysis and informed decision-making.
- Proactive issue detection through intelligent alerts and notifications.
- Secure access with role-based user management.
- Long-term, low-maintenance operation through optimized power efficiency.
System Architecture & Monitoring Platform
- Indoor Air Quality Monitoring Device -DigiSen utilizes a multi-sensor architecture to continuously monitor key indoor environmental parameters, including COâ‚‚, VOCs, temperature, humidity, ambient light, noise levels, and occupancy. Environmental data is processed by the onboard microcontroller and transmitted through an integrated LoRaWAN communication module to a LoRaWAN gateway.
- The gateway forwards the data to a LoRa Network Server (LNS), which acts as the central communication layer between field devices and the application platform. The LNS manages device authentication, message routing, and secure data delivery while maintaining communication between registered devices, gateways, and applications.
Key Takeaways
- Enabled proactive indoor environmental management through continuous monitoring and real-time insights.
- Delivered real-time visibility into critical indoor air quality and environmental conditions.
- Simplified monitoring and management across buildings, floors, and rooms through a centralized platform.
- Improved responsiveness with early detection of environmental issues and automated alerts.
- Enhanced occupant comfort, well-being, and overall indoor experience.
- Provided a scalable, reliable, and energy-efficient IoT solution for long-term deployment.
Why Choose DigiSen by Dotcom IoT ?
- Comprehensive indoor environmental monitoring through a single connected platform.
- Real-time visibility and proactive identification of air quality issues with intelligent alerts.
- Centralized monitoring and management across buildings, floors, rooms, and multiple locations.
- Actionable insights that support healthier, safer, and more productive indoor environments.
- Scalable and reliable IoT architecture designed for long-term deployment and future growth.
- Low-power operation and flexible deployment options to support diverse indoor applications.
- Environmental data is then delivered to the cloud platform for processing, storage, and analytics. By aggregating data from deployed DigiSen devices, the platform provides continuous environmental visibility and centralized management across multiple buildings and facilities.
- Through the DigiSen Dashboard, users can monitor environmental conditions in real time, analyze historical trends, manage devices across buildings, floors, and rooms, and receive alerts when predefined thresholds are exceeded. This centralized platform supports faster decision-making, improved operational visibility, and proactive environmental management.
Environmental Monitoring Capabilities
The Indoor Air Quality Monitoring Device integrates multiple environmental sensors to provide comprehensive visibility into indoor environmental conditions.
- COâ‚‚ Sensor: Continuously measures carbon dioxide levels to evaluate ventilation effectiveness and indoor air quality.
- VOC Sensor: Detects volatile organic compounds (VOCs) that may originate from indoor materials, cleaning agents, and other pollution sources.
- Temperature & Humidity Sensor: Monitors thermal comfort conditions while supporting accurate environmental assessment.
- Ambient Light Sensor: Measures indoor light intensity to provide additional environmental context and occupant comfort insights.
- Noise Sensor: Monitors sound levels to help assess acoustic conditions within indoor spaces.
- Occupancy (PIR) Sensor: Detects presence and movement, enabling occupancy-based environmental analysis and space utilization monitoring.
Connectivity & Communication Architecture
- The Indoor Air Quality Monitoring solution utilizes LoRaWAN-based connectivity to establish reliable communication between DigiSen devices, LoRaWAN gateways, the LoRa Network Server (LNS), and the cloud application platform.
- Environmental data collected by DigiSen devices is transmitted to nearby gateways and forwarded to the LNS. Acting as a bridge between the network infrastructure and the application layer, the LNS manages device registration, gateway connectivity, secure message routing, and data delivery to the cloud platform.
- Once processed within the cloud environment, the information becomes available through the DigiSen Dashboard, enabling real-time monitoring, analytics, reporting, and centralized environmental management.
- This architecture supports scalable deployments across multiple facilities while ensuring reliable, secure, and efficient communication between devices and applications.
Analytics Dashboard & Insights
The centralized dashboard provides a unified platform for monitoring, analyzing, and managing indoor environmental conditions across multiple locations.
- Real-Time Environmental Monitoring: Live visibility into COâ‚‚, VOCs, temperature, humidity, noise, ambient light, and occupancy data.
- Multi-Location Device Management: Centralized monitoring and management of devices across buildings, floors, rooms, and facilities.
- Historical Data & Trend Analysis: Access to historical environmental data for performance evaluation, trend identification, and reporting.
- Threshold-Based Alerts & Notifications: Automated alerts when environmental parameters exceed predefined thresholds, enabling timely corrective actions.
- Comparative Performance Analysis: Compare environmental conditions and device performance across different locations and monitored spaces.
- Asset & User Management: Secure management of devices, users, roles, and access permissions through a centralized interface.
- Actionable Environmental Insights: Data-driven analytics that support proactive environmental management and informed operational decision-making.
Low-Power Operation & Reliability
- Ultra-Low Power Consumption: The device incorporates a power-efficient architecture with a sleep current of approximately 4 µA, helping minimize energy consumption during idle periods and supporting long-term deployment.
- Continuous Environmental Monitoring: Despite its low-power operation, the system provides continuous monitoring of critical indoor environmental parameters, ensuring consistent visibility into air quality conditions.
- Reliable Long-Term Operation: Optimized sensing, processing, and wireless communication mechanisms enable dependable performance while maintaining efficient power utilization.
- Reduced Maintenance Requirements: The low-power design extends operational life and reduces maintenance efforts, making the solution suitable for large-scale and long-term indoor monitoring deployments.
Human Productivity Impact
- Improved Cognitive Performance: Continuous monitoring of COâ‚‚ levels helps identify poorly ventilated spaces that may impact concentration and decision-making. Maintaining optimal air quality supports improved focus and cognitive performance.
- Enhanced Occupant Comfort: Monitoring temperature, humidity, and indoor environmental conditions helps maintain a comfortable indoor environment, reducing discomfort and improving workplace experience.
- Proactive HVAC & AHU Optimization: Real-time environmental insights and threshold-based alerts enable facility teams to optimize HVAC and AHU operations before air quality conditions deteriorate, ensuring consistent indoor comfort.
- Reduced Health-Related Disruptions: Early identification of poor air quality conditions helps minimize environmental factors that may contribute to fatigue, discomfort, or reduced workplace efficiency.
- Faster Response to Environmental Issues: Automated alerts allow facility managers to take corrective actions quickly, reducing the duration and impact of unfavorable indoor conditions.
- Improved Workplace Productivity: Maintaining healthy indoor environmental conditions supports employee comfort, concentration, and overall productivity across workplaces and shared indoor spaces.
- Data-Driven Facility Management: Centralized monitoring and historical analytics enable informed operational decisions that contribute to healthier, more efficient, and productive indoor environments.
