Students create a system to support salt workers in making salt.

With the aim of applying technical advances to the traditional salt making profession, two students from Phan Dinh Phung High School (Song Cau Ward) have researched an automatic system to bring seawater into salt fields combined with sensors to help improve product quality - Smart Salt Field System (SSFS).

Recently , at the 13th Dak Lak Province Youth and Children's Creativity Contest, this system of Tran Le Tuan Khoi (grade 10 A1) and Tran Quang Huy (grade 10 A5) was highly appreciated by the Jury for its ability to be applied in practice.

According to Tran Le Tuan Khoi, the process of getting seawater into salt fields is currently mainly manual, time-consuming and laborious, affecting the health of workers. Although there are some technological solutions to support salt workers in making salt, these solutions still have many disadvantages such as: high investment costs, complex configuration, difficult installation, lack of integration between salinity measurement, water level sensor and unstable power source... "From those shortcomings, we created SSFS to apply sensors to the automatic control system to bring seawater into salt fields to help salt workers", Tuan Khoi shared.

Two students created a system to support salt workers in making salt. Photo:   V. Resources

According to Tran Quang Huy, this system helps to form a method of managing saltwater in salt production in a scientific and controlled manner. Instead of depending on experience, people can rely on specific and clear measurement indicators to decide when to take water into the salt fields, ensuring the crystallization process takes place properly and stabilizing the quality of the finished product.

“The integration of infrared sensors, salinity hydrometers and automatic control systems through software has created a highly practical application model, built on a clear scientific foundation. In particular, this model can be deployed and applied immediately to local production activities, contributing to improving efficiency and modernizing the salt production process,” Tran Quang Huy added.

According to instructor Bui Anh Tuan (Phan Dinh Phung High School), with outstanding advantages in accuracy, convenience and cost, SSFS promises to support salt farmers in improving labor efficiency, reducing work burden and developing the salt industry in a modern and sustainable direction.

According to the authors' explanation, this model not only solves practical problems but also opens up a new direction for the salt making profession - from manual labor to a smart, economical, environmentally friendly production model and can be applied on a wide scale. Because the system uses infrared obstacle sensors in combination with hydrometers - a traditional but effective salinity measuring tool. This combination creates a solution that is both accurate and cost-effective compared to specialized electronic devices. This helps salt workers not need to monitor directly and operate manually, especially useful at night or in unfavorable weather conditions because the system has an LED screen displaying battery capacity, making it easy to monitor when pumping has started or finished.

Dr. Vo Anh Khue (left), a member of the jury, listens to students Tran Le Tuan Khoi and Tran Quang Huy explain the model. Photo:   V. Resources

In addition, the system components are small in size, easy to assemble and replace. People can easily use them without requiring specialized technical knowledge. The system costs only about 1/15 to 1/20 of the price compared to the electronic salinity measuring devices sold today, but still ensures the same accuracy and function. This not only brings economic benefits but also contributes to stabilizing the salt making profession, avoiding the situation of abandoning the profession or changing professions due to low productivity.

Dr. Vo Anh Khue (Central College of Industry and Trade), member of the Jury, commented: “SSFS is a solution to support salt water extraction activities to take place automatically, effectively, sustainably, and environmentally friendly. This model can be applied widely, especially in salt-making areas such as Tuyet Diem, Xuan Phuong..., opening up a new direction for applying technology to agricultural production."

Source: https://baodaklak.vn/khoa-hoc-cong-nghe/202509/hoc-sinh-che-tao-he-thong-ho-tro-diem-dan-lam-muoi-f2912bd/