In today’s fast-paced business environment, reducing labor costs and improving operational efficiency are crucial for staying competitive and business growth. IoT offers transformative benefits that can leverage your business operations. Mynavi TechTus Vietnam can help you achieve both with our technology solutions.
Let’s See How Mynavi TechTus Vietnam Implement IoT to Help Your Business
As you know, IoT connects physical devices to the internet, allowing them to collect and exchange data. This data can be used to monitor operations, improve decision-making, and automate tasks. But what could we do with IoT to help you improve safety & productivity? See our case studies of IoT.
1. IoT project to Control Emission & Tracking Drivers
Project Overview:
This project is an IoT system that tracks truck operations to boost safety, efficiency, and environmental impact. Using digital tachographs, it records data on the blockchain. Companies benefit from improved fleet management and the public gains transparency on truck emissions.
The Client’s Problem:
Unverified documentary: The client provided Mynavi TechTus Vietnam with project documents from a previous company they stopped working with. These documents needed to be verified because the original source code didn’t meet the client’s needs, which was one of the reasons for ending that partnership.
Language barrier: The previous company struggled with Japanese communication, leading to misunderstandings with the client. They mainly translated documents from English to Japanese, but it wasn’t 100% accurate.
How Mynavi TechTus Vietnam Solved the Problem:
Focus on fixing and verifying:
- Mynavi TechTus Vietnam focused on fixing the issues with our best capacity for our clients, even though it took Mynavi TechTus Vietnam more time than our project proposal. We spent more effort double-checking the business needs and ensuring all documents and codes were correct.
- We reviewed everything carefully, re-estimating and checking the impacted areas to align with the client’s expectations.
Specialize in Japanese Communication:
- Mynavi TechTus Vietnam assigned experienced Associate Product Owners (APOs) who are proficient in the Japanese language and well-versed in Japanese business culture to communicate the client’s technical requirements clearly.
- This direct communication helped us understand and meet the client’s needs, leading to the project’s success.
Technologies Used:
- API Development, CMS Backend: PHP (Laravel Framework), PostgreDB.
- Message Broker Server: MQTT Server (Mosquitto).
- Message Streaming: Kafka (AWS MSK).
- Big Data Processing: Spark.
- Background Jobs: Hangfire.
- Infrastructure Setup: Amazon Web Services (EC2, S3, ELB, VPC, Lambda, SQS).
The Results:
Mynavi TechTus Vietnam created a management system that is capable of:
- Data Retrieval: Developed APIs to access detailed driving information, enabling better monitoring and management of driver behavior.
- Location Services: Created APIs to convert latitude and longitude coordinates into physical addresses, enhancing the tracking of the fleet.
- Safety Reporting: Generated safe driving reports through analysis of driving data, helping to identify and mitigate risky behaviors
Despite inheriting the project from another company, Mynavi TechTus Vietnam effectively handled the large volumes of data and the need for rapid processing. By carefully understanding the existing system and collaborating closely with the client, Mynavi TechTus Vietnam improved the infrastructure and user experience, ultimately becoming a strategic partner recognized for our expertise and contribution to the client’s success.
2. IoT project to track & manage workforce’s health
Project overview:
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.
The Client’s Problem:
- 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.
We also researched and found the best solution to optimize data and reduce LTE communication costs:
Initially, we investigated sending data in binary or hexadecimal formats instead of JSON due to the request from the client but found the data volume remained high.
However when we have tried sending hexadecimal data in JSON format during the current development phase, the data volume is high, so we have investigated other ways to reduce the data volume. The JSON format added unnecessary symbols like [], “”, and {}, increasing the data size and costs. While the sensor sent data to mobile in Array Int format, converting it to hexadecimal only made the problem worse.
Our solution: After thoroughly testing process, Mynavi TechTus Vietnam decided to avoid JSON entirely. Instead, we used Protobuf to convert Array Int directly into binary format, significantly reducing data volume and optimizing transmission.
Technologies Used:
- Backend: Ruby on Rails
- Frontend: Vue.js
- Mobile: Android (Kotlin), iOS (Swift)
- Communication: BLE (Bluetooth Low Energy)
- Cloud Infrastructure: AWS IoT Core
The Result:
The solution we delivered exceeded the client’s expectations. 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.
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Ready to Get Started?
These case studies demonstrate how applying IoT technology can grow your business while creating competitiveness. If you are interested in exploring which technologies might be suitable for your business and how to implement them, contact Mynavi TechTus Vietnam today for a consultation and project proposal. Let us discuss your specific challenges and how we can help you achieve your goals.
