Digitalization of Determining the Basic Properties of Hydrogen

The second article in a series of five papers devoted to hydrogen energy digitalization. The article describes the process of digitalization of determining the thermodynamic properties of hydrogen with a software method for obtaining the required information by any device involved in the calculation of the unit at the design stage and controlling its operation. To implement this interaction method, the REST API technology based on a web server is proposed (the idea and mechanisms for the complete construction of this interface are shown). In the process of developing such a solution, open source libraries and components are used, which allows making the necessary changes to them and configuring them in accordance with the task, ensuring scalability and extensibility while maintaining a high level of performance and availability, implementing the principle of distributed responsibility to achieve a high level of fault tolerance.