Gridbit SLMS
Intelligent Street lighting
GridBit SLMS Among the first large-scale intelligent street lighting management systems deployed in Bulgaria
And today it is one of the most widely implemented solutions with more than 5,000 digitalized street cabinets.
THE Problem
Managing street lighting today requires more than routine maintenance — it requires visibility, efficiency, and control. Cities face three critical challenges:
01.
Rising Energy Costs and Budget Pressure
Without clear visibility and optimized control, outdated infrastructure leads to unnecessary consumption, unpredictable expenses, and limited financial flexibility.
02.
Reactive and Inefficient Maintenance
Without immediate fault detection, lighting issues remain unnoticed longer, response times are delayed, and operational resources are used inefficiently.
03.
Regulatory and Sustainability Commitments
Without real-time data and transparent reporting, cities lack the visibility needed to optimize energy use and demonstrate progress toward climate and efficiency goals.
the Solution
Centralized Intelligent Street Lighting Control for Real-Time Visibility, Faster Response, and Lower Costs
Remote group control of lighting by schedule or instant command
Real-time visibility into lighting and electrical infrastructure
System Components
Modular Hardware
Gateway Module
GSM 2G/4G - MODBUS communication module - provides communication, management and data collection.
Network Analyzer
MODBUS Three-phase Network/Current Analyzer - measures a wide range of electrical parameters.
Multichannel Voltage Detector
MODBUS 8-channel voltage detection - monitors the status of supply lines, control circuits, fuses, protections, contactors in the LV switchboard.
Schedule Controller
MODBUS automation module, sunrise/sunset switching
saas Platform
GridBit provides a centralized dashboard for real-time monitoring, control, and optimization of your intelligent lighting infrastructure — delivering visibility, faster response, and operational efficiency.
Key Platform Features
Smart alarms with context-aware alerts
Notifies relevant teams instantly when issues occur (e.g., cable faults, phase irregularities).
Downtime is minimized and response teams stay ahead of service degradations.
Secure and scalable cloud platform
Ensures 24/7 access, plus seamless updates and improved data protection.
Your system grows with your needs without infrastructure bottlenecks or on-site servers.
GIS-based asset view
See your entire lighting network mapped with statuses, historical behaviors, and issue markers.
Planning, maintenance prioritization, and field dispatching become faster and more efficient.
Real-time monitoring and Analysis
Gives you a live, data-driven view of system health and performance, alerting you the moment something deviates from expectations.
Faults are detected and fixed before residents notice them, improving reliability.
Automation
Automatic schedule execution, trend analysis, and detailed reports remove guesswork from operations.
Strategic planning (budgeting, capacity planning) becomes grounded in data, not intuition.
Flexible Integration
Built to connect easily with different communication technologies and IoT networks.
Usese industry-standard protocols MQTT, HTTPS, and Modbus for secure and reliable data flow.
what you get with
gridbit slms?
- 20–30% reduction in maintenance costs
- 10–15% energy savings through optimized schedules
- Faster fault detection and resolution
- Improved asset lifecycle planning
What our customers say
The team of ADD Bulgaria responds quickly and flexibly to various requirements and challenges. This gives us peace of mind, knowing that we have a true partner with whom we achieve success together.
ADD Bulgaria provides reliable maintenance and precise configuration for all components of the intelligent street lighting system. We are happy to have made this collaboration in the town of Roman.
ADD Bulgaria were our partner in the realization of the projects in Sozopol and Dragoman. Nowadays it is so important to find a loyal partner, who will understand your needs and will show flexibility, while keeping all agreements. They are just that!
FAQ
Can existing street lighting cabinets be upgraded with GridBit SLMS?
Existing panels can be upgraded with a GridBit SLMS street lighting management system as long as there is enough space to mount the hardware devices.
What is the process of implementing GridBit SLMS?
Is local server required to install the platform GridBit SLMS?
No, a local server is not required as the system is built as a cloud solution. All that is needed is a computer from which the user can access the web-based platform.
How is communication done between each hardware device in the system GridBit SLMS?
- The communication between the hardware modules installed in the dashboard and the server on which the platform is installed is carried out by means of GSM/GPRS.
- Communication between the individual modules of the system, which are mounted on a DIN rail in the dashboard, is carried out via ModBus, RS485.
What are the requirements for the cabinets in which the GridBit SLMS equipment will be installed?
The panels in which the hardware configuration for remote control and monitoring of street lighting is installed must be:
- Plastic (in case a CONTRACTOR’s standard hardware configuration including internal mounting antennas is used);
- The cabinets can also be metal, in which case the antenna is for external installation. It is good to specify this at the very beginning of the project.
- Protected from unauthorized access;
- Of a type that does not allow the penetration of moisture.
What is the size of the hardware modules?
- Communication module (GWU-3): 90 mm(L) x 70 mm(W) x 30.5 mm(H);
- Three Phase Network Analyzer (MCU-3): 90 mm(L) x 70 mm(W) x 30.5 mm(H);
- Multi-Channel (Mains) Voltage Detector (SMU-3): 90 mm(L) x 70 mm(W) x 30.5 mm(H);
- Schedule Control Module (RTU-2): 90mm(L) x 35mm(W) x 30mm(H);
- Power Module (Option 1): 93mm(L) x 58mm(W) x 18mm(H).
What exactly does GridBit SLMS measure?
- The system provides in real time the reported indicators (voltage, current, power, consumed energy) and transmits information in case of deviation from the measured values.
- Availability of power supply to the control panel, as well as to the branches on each branch separately (phases).
- Ability to count the number of non-working lighting fixtures based on the ratio of current consumption / nominal consumption.
- State of a number of elements: the main fuses, as well as the fuses to the individual branches (phases), the state of the executive elements – contactors, of the control circuits.
- Monitoring the correct implementation of the set schedule for lighting control.
- Status of tamper buttons for opening a door on the control panel.
- Attempts to manipulate the control equipment.
- Measurement of electrical parameters in the control panel.
- Reporting of the parameters of the working environment in the control panel.
What does the system optimize and save from?
The GridBit SLMS intelligent street lighting management system is a tool that mainly optimizes the street lighting maintenance process. In large municipalities with a large number of switchboards or in municipalities with scattered switchboards (at a great distance from each other), it is extremely important that the information about the condition of the equipment is correct and available in advance. This saves time, fuel costs and makes the process much better. In addition, GridBit SLMS reduces costs caused by technical problems (e.g. leaks from poor cable infrastructure) and non-technical ones (electricity theft from unregulated connection to the grid).
What are the recommendations when installing the modules of GridBit SLMS in the cabinet?
The system for monitoring and managing the MA from ADD Bulgaria can work in any type of panel – both existing and new, plastic and metal, as long as there is enough space for mounting the hardware modules in it. For the trouble-free operation of the system, ADD Bulgaria recommends the installation of several electrical components – protection against transient overvoltages, a tamper button for an alarm when the dashboard door is opened, and others. Failure to follow these recommendations will not disrupt the operation of the system, but could lead to other types of problems for the customer and the municipality.
Is access to the software platform paid?
Yes, access to the platform is on an annual subscription basis. By paying for this subscription, the customer provides access to the latest features and improvements to the system, as well as the removal of various types of bugs.
Do the hardware devices have warranty and how long is it?
Yes, the warranty is normally 2 years.
What are the requirements for the SIM cards installed in the communication module GWU?
SIM card requirements are as follows:
- Network connectivity to the Internet. They do not necessarily have static addresses;
- Traffic at a maximum speed of 1-5GB, with 1GB being the minimum size;
- When the traffic of 1-5GB is exhausted, the service should not stop, but switch to a minimum speed of 128Kbps;
- Internet connection ports should not be limited;
- That the pin code of the cards has been removed.
