![]() ![]() Let our highly experienced Ciholas engineering staff design your high-tech device or system. And anyway the phones stop broadcasting when screen is off for a while. Unfortunately discovery hops and listens 40 channels. ![]() If you try this, please let us know your results, it is an interesting topic that could have applications in peer to peer ranging functions.Ä£700 Bell Road, Newburgh, IN 47630 8 Ciholas Home - Ciholas Bluetooth based proximity detection The challenge with classic Bluetooth is the requirement to constantly scan for near devices to measure the signal strenght (RSSI) from which we can infer the proximity. I suspect using long preambles, which take more transmit time, probably improves the RSSI numbers somewhat, but thatâs just a guess. The previous answers talk about the RSSI during an inquiry scan. Second, if the first path was not detected properly, a multipath signal will be interpreted by the DW1000 as the first path and thus produces a reading not truly representative of the first path RSSI. Connection RSSI can be obtained using BlueZ command hcitool rssi .![]() For this class of devices you can establish a connection and eventually ask for the connection RSSI. So look on WinRT API or use thrid party library. However, device must be connected anyhow. First, the the first path signal strength numbers are relatively coarse, so there is a lack of detail. The previous answers talk about the RSSI during an inquiry scan. There is a way to get RSSI for Classic Bluetooth device on Windows 10 platform with WinRT API. In theory, using only the first path numbers would avoid using multipath energy in the RSSI. RSSI stands for Received Signal Strength Indicator, and measures how well a client device can hear (receive) a signal. The primary reason is that the RSSI numbers seem coarse and somewhat noisy.Īre UWB RSSIs more stable (or less prone to interference/multipathing/etc) compared to the BLE corresponding ones? With that disclaimer, I would not expect UWB RSSI to work as well as BT RSSI for correlating distance. We have not done actual scientific experiments in this area, so these comments are based on general experience. But my programming skills are in the very basics yet, and the code scans all the Bluetooth devices (i think) and i just want to know the RSSI value of a single. Would an Indoor Positioning that is based on UWB RSSI be expected to perform better compared to ones that are based on BLE RSSI? ![]()
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