What is RTLS Technology? Real-Time Location Systems and Their Role in IoT
RTLS (Real-Time Location System) is the general name of the systems that determine the location of assets, equipment, or personnel. In these systems, a tag is attached to the tracked object. Receivers within the facility detect the wireless signals from this tag, calculate the location, and the information becomes visible instantly in a software platform. RTLS is used especially in closed areas such as warehouses, production facilities, and hospitals where GPS signal is weak.
Depending on the use scenario in RTLS systems, different technologies such as BLE, UWB, Wi-Fi, or RFID can be used. The location data can be temperature, humidity, and movement. IoT When combined with sensor data, businesses can monitor not only where an asset is located, but also under what conditions it is present. In this regard, RTLS is one of the important components of the IoT infrastructure that transforms physical operations into digital data.
So, how does RTLS work, what technologies does it use, and what benefits can it provide to businesses?
What is RTLS?
RTLS is the general name for the technology and systems used to determine and track the location of physical assets, equipment, or personnel in real time or near real time. RTLS solutions, especially used in manufacturing facilities, warehouses, hospitals, and large operational areas, make physical assets visible in the digital environment.
For example, in a manufacturing facility, it is not necessary to physically search to find out where a piece of equipment is located. The current location of the equipment can be viewed through the RTLS platform.
Therefore, RTLS should not be viewed solely as a location tracking system. It can also be considered as one of the IoT technologies that helps businesses transform their physical operations into digital data.
How Does RTLS Work?
The basic working principle of RTLS can be summarized as follows:
Tracked asset → Tag/Sensor → Signal → Receivers → Localization → IoT Platform → Real-time Data
A RTLS system usually has the following components:
- Tag/Label: It attaches to the entity, equipment, or person that is wanted to be tracked.
- Sensors/Receivers: It detects the signals from the tag.
- Location infrastructure: It calculates the location information from the signals.
- Software platform: It presents the location data to the user on a map or diagram.
- IoT integration: It enables the evaluation of location information in conjunction with other sensor and operational data.
For example, when RTLS tags are placed on equipment in a warehouse, the system can track the equipment’s location within the facility. This means that no physical search is required to answer the question “Where is the equipment?” The answer becomes data that can be viewed on a digital platform.
How is Location Calculated in RTLS?
In RTLS systems, location is generally determined using two approaches. Which approach is chosen depends on how detailed a location information the business needs.
- Zone-based positioning: The location of the asset is determined in terms of the area, room, or section. The receivers are placed at points of passage such as doors, corridors, entrances and exits, or specific areas. It is suitable for scenarios where the question “Which section does the equipment belong to?” is sufficient.
- Coordinate-based positioning: Buyers are used as a reference point and the position on the asset’s sketch is calculated. It is preferred in scenarios where more detailed location information is required.
In general, the number and placement of receivers are important factors that affect positioning accuracy. Therefore, a layout plan suitable for the facility’s structure must be prepared before installation.
Which Technologies are Used in RTLS?
RTLS does not refer to a single technology. Different technologies can be used depending on the usage scenario, the facility’s structure, and the required positioning accuracy.
| Technology | Where is it used? | Featured feature | Role in RTLS |
| UWB | Production facilities, warehouses, hospitals | High position accuracy | Precise positioning |
| BLE | Asset and equipment tracking | Low energy consumption | Indoor asset tracking |
| Wi-Fi | Businesses and facilities | The ability to take advantage of the existing network infrastructure | Interior positioning |
| RFID | Warehouse, production and logistics | Asset identification and tracking | Material and asset tracking (in passive RFID, the location is updated when the tag reader passes through the point) |
Note: Position accuracy may vary depending on the used hardware, the physical structure of the facility, the sensor placement, and the system architecture.
What is the difference between RTLS and GPS?
RTLS and GPS are technologies used to provide location information. However, their operating principles and areas of use are different.
GPS uses satellite signals to determine location. RTLS determines location through tags, sensors, receivers, and local positioning infrastructures.
RTLS can be used to provide real-time location visibility in closed areas and controlled operational environments. It can support the monitoring of the location of assets, equipment, and personnel in manufacturing facilities, warehouses, hospitals, and similar areas.
| Feature | RTLS | GPS |
| Location method | Through the tag, sensor, and receivers | Through satellite signals |
| Coverage | Facility or defined area | Global |
| Featured use case | Indoor spaces and in-house operations | Outdoor areas |
| Location infrastructure | Local sensor and receiver infrastructure | Satellite system |
| Indoor use | It is suitable depending on the technology and infrastructure used | The signal conditions within the building may be affected |
| Tag / device energy consumption | It may be low according to technology | It may be higher than expected |
What Can Be Tracked with RTLS?
RTLS is not used only for tracking a single type of asset. Depending on the use scenario, the following can be tracked:
- Production equipment
- Pallets
- Containers
- Mobile equipment
- Hand tools
- Medical equipment
- Warehouse assets
- Materials on the production line
- Personnel and field teams
The fundamental value here is not just knowing where the asset is. With RTLS, the asset's location, movement, and its relationship to specific operational conditions can also be evaluated.
What are the benefits of RTLS for businesses?
The main benefits that RTLS can provide to businesses are:
- Instant location visibility: The location of assets and equipment can be displayed instantly.
- Operational efficiency Time losses caused by equipment searching and unnecessary movements can be reduced.
- Monitoring the use of equipment: The equipment can be tracked in which areas it is located and how it is moving.
- Supporting employee safety: The location information of employees or specific teams can be utilized in security scenarios. For example, emergency notifications can be created for personnel working alone.
- Finding missing equipment: Search processes can be simplified based on the current or known location of the equipment.
- Data-based decision making: Location data is combined with other IoT data Data analytics More comprehensive assessments of the operation can be made during the process.
The Relationship between RTLS and IoT
One of the important features of RTLS in terms of IoT is that the location information can be combined with other sensor data.
IoT systems can collect different data such as:
- Temperature
- Moisture
- Movement
- Energy consumption
- Equipment status
RTLS can add the dimension of location to these data.
For example, one in the cold storage Only the information “Temperature 4°C” can be seen. With RTLS, the answer to this question can also be added: “Which region and which object is the sensor measuring 4°C?”
This approach takes RTLS beyond being just a positioning technology and makes it one of the important data sources of the IoT ecosystem.
Where is RTLS used in the healthcare sector?
RTLS can be adapted to different use scenarios in many sectors where physical assets, equipment, or people are present.
| Sector | RTLS usage scenario | Assets that can be tracked |
| Production | Positioning of equipment and materials in the production area | Equipment, material |
| Logistics & Warehousing | Monitoring the assets within the warehouse | Pallets, containers, equipment |
| Health | Monitoring the location of medical equipment | Medical devices |
| Industrial Facilities | Ensuring visibility of equipment and personnel positions | Equipment, personnel |
| Energy | Monitoring critical assets within the facility | Equipment |
| Retail | Monitoring assets within the store and warehouse | Stock, equipment |
| Smart Buildings | Monitoring mobile assets within the building | Equipment, mobile asset |
What Should Be Considered When Choosing the Right RTLS Solution?
When choosing an RTLS solution, it is first necessary to determine the problem the business wants to solve. The main criteria to consider are:
- Location accuracy (region-based or coordinate-based?)
- Physical structure of the facility
- Type of assets to be followed
- Technology to be used
- Whether to take advantage of the existing infrastructure and Wi-Fi network
- Installation infrastructure (number and location of receivers/gateways)
- Tag battery life
- IoT integrations
- Scalability
- Personnel location data being evaluated within the scope of personal data protection (KVKK)
Therefore, when determining the right RTLS solution, the question “Which technology?” is not sufficient. The question “Which operational problem do we want to solve?” must also be answered.
Indoor Location and Sensor Tracking with MobiSense IoT Solutions
MobiSense IoT Solutions, The system brings together equipment, personnel, and sensor data within the facility on a single platform. Sensors supported by BLE 5.0 can transmit data without requiring a cable infrastructure in production areas and warehouses. Wi-Fi-based gateway devices transmit this data to the platform. In areas without Wi-Fi, communication is maintained with GSM-based devices.
Through a web-based panel:
- Sensors can be tracked based on a map or sketch. Their locations and the most up-to-date data can be displayed on a single screen.
- Scenarios such as personnel and equipment tracking, forklift and pallet movement tracking, and in-warehouse asset management can be created.
- The safety of personnel working alone with emergency systems can be supported.
- Instant alarms and automatic rules can be defined, and reports can be scheduled.
- Data from different brand sensors can be integrated into the same platform using protocols such as BLE, Wi-Fi, GSM, MQTT, REST, and LoRaWAN.
