Bluetooth technology was originally created in 1994 by the telecom giant Ericsson as an alternative to the RS232 data line. Bluetooth can connect multiple devices, overcoming the challenges of data synchronization. With Bluetooth devices such as Bluetooth headsets, Bluetooth mice, and Bluetooth speakers gradually filling our lives, Bluetooth is no longer an alternative to data lines.
Bluetooth is now managed by the Bluetooth Special Interest Group (SIG). The Bluetooth Technology Alliance has more than 25,000 member companies worldwide, spanning multiple areas such as telecommunications, computing, networking, and consumer electronics.
Bluetooth has evolved from the original Bluetooth 1.0 to today's Bluetooth 5.1. Both performance and ease of use have been greatly improved. What is the latest Bluetooth 5.1 upgrade compared to the old version of Bluetooth? As a small version of Bluetooth 5.0 upgrade, we must first know what improvements to Bluetooth 5.0, Bluetooth 5.0 compared to Bluetooth 4.2LE mainly the following improvements:
High-speed transmission: its transmission rate reaches 24Mbps, which is twice that of Bluetooth 4.2LE
Transmission distance: The effective distance of transmission is 4 times that of the previous version. In theory, the effective working distance between Bluetooth transmitting and receiving devices can reach 300 meters.
Precise positioning: combined with wifi can achieve indoor positioning with accuracy less than 1 meter
Ultra-low power consumption: Bluetooth 5.0 will greatly reduce the power consumption of Bluetooth, so that people no longer have to worry about the short standby time in the process of using Bluetooth.
It can be seen that Bluetooth 4.2 of Bluetooth 5.0 has a huge improvement. On January 28 this year, the Bluetooth Technology Alliance (SIG) announced the latest Bluetooth standard - Bluetooth 5.1. Compared with 5.0, the latest version of Bluetooth has added the direction finding function and the centimeter-level positioning service. The addition of this function makes the positioning in the room more precise, and can also accurately locate the small objects to avoid item loss.
With the continuous improvement of Bluetooth and the upgrade of its own functions, the types of terminal devices equipped with Bluetooth will become more and more abundant, and our life will be more and more convenient because of Bluetooth.
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