Beijing, China, May 18, 2020-Highly integrated battery management, AC/DC power conversion, Wi-Fi, Bluetooth Low Energy (BLE) and industrial IC supplier Dialog Semiconductor (German Stock Exchange trading code: DLG) Today announced the launch of the latest Wireless Ranging (WiRa™) Software Development Kit (SDK), which adds highly accurate and reliable wireless ranging functions to its DA1469x Bluetooth Low Energy (BLE) SoC series.
Due to the global spread of COVID-19, the need for more accurate and reliable wireless ranging and tracking technology has become more significant. As companies around the world advance controllable and manageable resumption of work and production plans, they are looking for a solution that can help ensure a safe distance between employees and have more accurate and efficient close contact tracking functions to ensure workplace safety. Safety and peace of mind of employees.
The current Bluetooth low energy market’s solutions for ranging and positioning are based on measuring the strength or power of the received radio signal, which is called received signal strength indicator (RSSI) measurement. However, this received signal power measurement itself has some inherent flaws, because it is very sensitive to the effects of objects in the radio path blocking or reflecting radio signals.
Dialog’s latest Wireless Ranging SDK successfully overcomes the deficiencies of RSSI and adopts a proprietary radar-like implementation, which greatly improves the accuracy of wireless ranging between BLE connected devices. By interleaving BLE data packets with interactive fixed-frequency signals, the DA1469x on-chip 2.4 GHz radio generates the signals required for phase-based ranging. High-resolution radio wave on-chip sampling provides high-quality IQ samples as the signal input for ranging. The data processing algorithm filters out the noise, interference, reflection and other signals in the data to produce the shortest signal path in the air as a precise distance output.
Dialog provides a protocol stack compatible with Bluetooth low energy specifications and WiRa™ software implementation, without hardware modification or external host processor, ensuring the coexistence of Bluetooth communication and ranging processes.
Sean McGrath, Senior Vice President of the Connectivity and Audio Technology Business Unit of Dialog Semiconductor, said: “Dialog’s Bluetooth Low Energy solution has been applied in a variety of products to help slow the spread of COVID-19. By providing the DA1469x SoC series With the addition of a unique precise wireless ranging function, we hope to accelerate the global deployment of more tracking applications and products in the coming months to help slow the spread of the new coronavirus.”