How ultrasonic indoor positioning works
With global development of the Internet, information on people and asset location is becoming more and more important for business process optimization in companies. Many technologies, based on calculating the exact coordinates and sending them for processing to the specialized platform, are used for indoor navigation. One of such technologies is ultrasonic indoor positioning. The system has a great potential for implementing into the infrastructure of companies and enterprises since it can define object location to within several centimeters.
The technology is based on using ultrasound that defines the spectrum of sound waves with the frequency that is too high for human perception (more than 20 khz). The ultrasonic location system is based on the ascending/ descending signal transmission mode so during the installation the number of receiving devices is not limited. Ultrasonic positioning is considered a more effective solution in comparison with GPS since, while positioning, it doesn’t require direct visibility between transmitters and signal readers.
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Working principles and advantages of the ultrasonic system
The working principle of ultrasonic positioning is based on the ToF (Time-of-flight) method, i.e. on measuring the signal propagation time from the sensor to the receiver. Special tags that transmit ultrasound impulses are applied for measuring distance. The network of receivers scans these signals and sends data into the central system that uses multilateration for calculating the location with an accuracy of up to 3 sm.
The key advantages of ultrasonic positioning are the following:
- Work in real time – the frequency of signal updating varies from a sub-second to 3 seconds.
- High accuracy – thanks to the technology one can get highly accurate information related to the object location to within several centimeters.
- Support of different use cases – can be used in any business processes.
- Minimal set of equipment – a few sensors ensure maximum coverage of the place.
- Low maintenance costs – long-lasting batteries are used in the devices.
- Quick installation – is realized, mainly, wirelessly. Thanks to the battery power, it is possible to perform the operational deployment of the system with fine tuning.
- Possibility of remote management - for simpler diagnostics and program updating.
Spheres of application of the ultrasonic positioning system
In recent years the ultrasonic indoor positioning system has been widely used in many economic sectors, including offices, hotels, warehouses, healthcare.
Ultrasonic positioning simplifies the search of rooms in medical institutions and makes it possible to increase patient satisfaction from the work of the clinic. Thanks to implementing the system, the management can monitor staff performance, change the task status in real time and considerably improve the current business processes. Moreover, the technology ensures medical equipment tracking, which lets optimize its movement and define availability in real time.
In hotels and other hotel-type accommodation the ultrasonic position tracking system is necessary for increasing user experience and for more convenient search of points of interest. Using this system, guests can quickly find their rooms, cafes, conference halls and other necessary places. Thereby, the application of the system helps to get additional income from tenants and increase the hotel profit.
Ultrasonic positioning allows managing office processes in a simpler way. It can simplify the movement around business centers and improve the interaction between employees. The technology ensures:
- Navigation in real time.
- Building routes to rooms.
- Staff location tracking.
- Gathering data on office staff movement.
The system can quickly optimize logistics in office premises and present the company as an innovation environment for business.
For the enterprises that manage warehouses, the technology will be extremely useful with regard to tracking goods and equipment. With its implementation, the company can get a precise tool for asset tracking that will optimize logistic processes and minimize expenses on performing warehouse operations. The system tracks certain objects at the warehouse and provides data on their movement in real time.
Navigine specializes in implementing indoor navigation and offers positioning systems that perform ultrasonic object tracking. We are always open to cooperation and glad to provide our software solutions for creating mobile and web applications.