In the wave of the Internet of Everything in smart cities, various technologies act as the “organs” of the city, working in unison. Bluetooth modules play a crucial role as the "nerve endings." From smart streetlights to shared bicycles, from indoor navigation to environmental monitoring, this tiny low-power chip, with its cost-effectiveness and flexible deployment advantages, is quietly infiltrating every corner of urban life.
Seamless Connectivity in Smart Traffic
Bluetooth beacons enable real-time communication between vehicles and smartphones, optimizing traffic light timing, monitoring traffic flow, and even facilitating contactless parking payments. For example, Stockholm, Sweden, uses Bluetooth sensors to monitor road congestion, reducing commute times by 20%.
"Smart Dialogue" in Public Facilities
Garbage bins equipped with Bluetooth modules can automatically report when they are full, improving sanitation efficiency. Smart streetlights use Bluetooth Mesh networking to enable remote dimming and fault alerts, achieving energy savings of over 30%.
Integrated Indoor and Outdoor Navigation
In large malls, subway stations, and other venues, Bluetooth 5.1’s high-precision positioning technology (AOA/AOD) provides meter-level navigation, solving the issue of GPS failure indoors.
Low Power, Long Battery Life: BLE (Bluetooth Low Energy) devices can operate for years on a single button battery, making them suitable for large-scale deployment.
Low Cost, Easy Deployment: The cost per module has dropped to under 10 yuan, and complex base station construction is not required.
Strong Ecosystem Compatibility: Full coverage by smartphones, providing a “zero-threshold” interaction for end users.
Compared to other solutions like LoRa or NB-IoT, Bluetooth excels in short-range, high-frequency data transmission scenarios. For example, in a community in Shanghai, a combination of Bluetooth locks and mobile apps has increased property inspection efficiency by 4 times.
The latest Bluetooth 5.4 standard, released in 2024, supports the PAwR (Periodic Advertising Response) function, allowing simultaneous connections to thousands of nodes. This will drive:
The evolution of Bluetooth modules is a microcosm of the journey from the concept of a smart city to its realization. This seemingly small module is redefining the interaction between people and cities. Perhaps one day in the future, as you walk down the street, the "invisible network" formed by Bluetooth technology will silently optimize the city's rhythm.
RHA Technology independently developed the RHA-BT102M Bluetooth 5.2 module, which supports BLE 5.2, low power consumption, and Bluetooth master-slave integration with one-to-many connections. Its transparent transmission rate can reach 60KB/s, and it supports custom development, making it suitable for various IoT smart applications. With the continuous development and improvement of Bluetooth technology, Bluetooth modules are expected to play an increasingly important role in the smart city sector in the future.
