Minimizing labor expenses and enhancing operational efficiency are essential for maintaining a competitive edge and driving growth. The Internet of Things (IoT) provides powerful advantages that can optimize your business processes. At Mynavi TechTus Vietnam, we offer technology solutions designed to help you accomplish both goals.
How Mynavi TechTus Vietnam Implements IoT to Help Your Business
Our client, a laboratory of professors and Phd researchers, sought to create an IoT solution aimed at monitoring and managing health metrics such as heart rate and body movement. The client’s device is for wearing on the chest; communicated with the software via Bluetooth Low Energy (BLE) to transfer real-time health data. Their target users included athletes, long-haul truck drivers, and factory workers—individuals for whom real-time health data is crucial.
IoT project to track & manage workforce’s health
The Challenge:
Frequently data transmission for 8 hours across 1,000 users. Handling large data volumes, like ECG with 4 sampling frequencies, was a key challenge.
Data size & LTE communication cost: The client asked us to send data from mobile devices to IoT Core in binary or hexadecimal format to reduce the data size and save on LTE communication costs. After investigating, we found that sending data in binary or hexadecimal instead of JSON didn’t change the data size, so the costs would remain the same.
How Mynavi TechTus Vietnam Solved the Problem
To tackle the challenges of the project, Mynavi TechTus Vietnam implemented several key solutions to ensure smooth and efficient performance. These solutions not only addressed the immediate concerns but also enhanced the overall functionality of the system:
Our solution for frequent data transmission:
- Mynavi TechTus Vietnam utilized Amazon Timestream, a time series database, to store real-time data. The system pushes data every 30 seconds to ensure continuous updates.
- User testing: To gather enough data for the project, Team members extensively tested the devices as trial users throughout the development process to have more user experiences. Despite the devices being heavy and uncomfortable during testing, our team members have worn the devices continuously on their chest —while working and sleeping—to collect enough sample data for the project.
Tech Stack:
- Backend: Ruby on Rails
- Frontend: Vue.js
- Mobile: Android (Kotlin), iOS (Swift)
- Communication: BLE (Bluetooth Low Energy)
- Cloud Infrastructure: AWS IoT Core
The Results
- The system was able to handle real-time data transmission for 1,000 active users without any significant performance issues.
- The client reported a smooth user experience and was highly satisfied with the intelligent solutions we implemented and the excellent Japanese communication skill.
- They have expressed interest in continuing to work with us for the next phases of the project.
