Technology to change life, advanced science and technology has indeed brought a lot of convenience to our life, wearable devices and smart appliances with smart phones as the center often use wireless connectivity technologies such as Bluetooth, ZigBee and WiFi for smart home and smart wearable devices Provide stable and low-power data transmission services. The Internet of Things presents many design and test challenges for designers of consumer electronics products, with battery-powered time being a key indicator of many IoT devices. Power management is crucial in wearable device technology because poor power management can cause the battery to drain while battery life directly affects the actual use of the product.

        Smart wearable devices refer to the devices that can be directly worn on the body or integrated into clothing and accessories and can support data exchange with the cloud through software support. The small size and small size are common features. Therefore, when designing intelligent wearable devices such as smart watches , Optional wireless module products must meet the small size, cost-effective and low power requirements.

Positioning program:
        Existing smart wearable devices currently on the market integrate modules that support GPS, Bluetooth, WiFi, GPRS, and acceleration / gravity sensors. The so-called positioning function is completely dependent on the cooperation of these modules. Among them, the GPS positioning accuracy, in the open-air environment, the positioning accuracy can be achieved within 5-3 meters. If the positioning module can also support AGPS (that is, GPS-aided GPRS data and base stations), but also to speed up the positioning speed. However, GPS signals can be obscured in an indoor environment (or under an overpass, tunnel, etc.). At this point, you need WiFi, Bluetooth, GPRS (cell phone network), base stations, sensors combine to achieve the so-called "indoor positioning." Silverway Group's GPS module, has been widely used to obtain the positioning of smart wearable devices.

Smart wearable GPS module

Connection scheme:
        The most widely used connection technologies in smart wearable devices are Bluetooth Low Energy and WiFi. WiFi with active networking, distance, transmission speed and other advantages, but because of high power consumption, bracelet products rarely used. Low-power Bluetooth (BLE) Due to its low power consumption in the smart wearable terminals, such as smart bracelets, smart watches, a wide range of applications, the current major supplier Silverway Group has a variety of chips based on the development of BLE Bluetooth module.

        The current wearable terminal to mobile phone auxiliary devices, smart bracelets, smart watches and smart glasses are the most common, the three accounted for more than 70% of global shipments of wearable devices, and these three products, GPS module and Bluetooth The most common application of the module, although WiFi has the initiative to networking, distance, transmission speed and other advantages, but because of high power consumption, smart wearable products rarely used.