Design of Information Systems for Public Transport

Project in a Nutshell: Transport and other industries often face the challenge of providing users with accurate real-time information while maintaining system reliability and scalability. Promwad developed an adaptable information system for public transport that provides accurate real-time information updates.  

The on-board device is based on GPS, GSM communication and support for multiple displays. The system can be extended with modules for video surveillance, voice alerts and event detection. Built on robust processors, it is scalable and customisable for different modes of transport. The solution improves passenger experience, ensures operational stability and reduces operating costs. 

Challenge

Promwad's expertise in creating complex transport systems — from hardware and software development to integration and testing — allows us to offer flexible and scalable solutions adapted to any customer's requirements. Our onboard unit for information systems can combine displays, video surveillance systems, and other key components, including integration into the CRM transport system. 

Solution

We developed an information system with basic components that can be easily extended with additional modules. 

The basic set of functions, which is the foundation of the system, includes: 

• The onboard unit is the main controller that manages the displays and is responsible for the stability of the entire system. 

• GPS to accurately track stops and routes, plan schedules, and display location and arrival times in the mobile app. 

• GSM communication for automatic data updates, including routes and advertisements. 

• Displays (LED, E-Ink, LCD), both external and internal, to display destination and route number. 

Various functions and relevant components can be added depending on the application: 

• A passenger couting system will be used to monitor the situation in the cabin and ensure safety. 

• Voice announcements of routes and stops for passenger convenience. 

• Event detection includes sudden braking, opening doors, and other critical actions. 

How It Works

The system is built around an onboard unit that controls all components and can support up to four displays connected via Ethernet or HDMI. 

Based on powerful processors such as NXP, the system provides fast data processing and integration with various interfaces such as IBIS, RS232/RS485, USB and WLAN. 

Integrated GPS and GSM modules synchronise the displayed information and automatically update route data. The system runs Linux, which allows for easy customisation and integration with other systems.

Benefits of implementing such a solution: 

• Passenger comfort: accurate route updates increase user loyalty. 

• Cost reduction: reliable operation and minimal maintenance reduce infrastructure costs. 

• Adaptability and flexibility: the system can be customised to suit all requirements and transport types, adding features such as advertising and additional displays. 

• Reliable: basic functions ensure stable operation even under heavy use. 

• Resource-saving: automatic data updates keep data up to date without operator intervention. 

Potential Applications

The flexibility and modularity of this information system allow it to be used not only in public transport but also in other sectors: 

• Rail services: real-time updating of train timetables, delays and on-board information. 

• Maritime transport: passenger and freight ferries, displaying routes, timetables and safety instructions. 

• Airport transfers: flight schedules, gate information and real-time alerts. 

• Tourist services: tour buses or boats offering detailed route information, promotional content and voice instructions. 

• Smart cities: Integrate transport data into urban mobility management systems to optimise traffic flow and passenger convenience. 

Business Value 

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More of What We Do for Public Transport

• Urban Mobility: explore our expertise in the development of embedded systems and software applications for urban mobility. 

• Transport Monitoring System: a case study of the development of a modern transport monitoring platform that improves accessibility for people with disabilities and optimises energy consumption.  

• Connected Cars: our research into how V2X technology is transforming the automotive industry, with a particular focus on its impact on public transport.