The Internet of Things is an important part of the new generation of information technology and an important stage of development in the era of "informatization." Its English name is: "Internet of things (IoT)". As the name suggests, the Internet of Things is the Internet connected to things. This has two meanings:
First, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet;
Second, the user end extends and expands between any item and item, and exchanges information and communication, that is, the object meets. The Internet of Things is widely used in the convergence of networks through communication-aware technologies such as intelligent sensing, identification technology and pervasive computing. It is also called the third wave of the development of the world information industry after computers and the Internet. The Internet of Things is the application expansion of the Internet. It is not so much that the Internet of Things is a network, but the Internet of Things is a business and application. Therefore, application innovation is the core of the development of the Internet of Things. Innovation 2.0, with user experience as the core, is the soul of the development of the Internet of Things.
In short, the Internet of Things is to connect objects in the real world to the Internet, so that things and things, people and things can communicate with each other easily.
The RF wireless module is a modular product of Digital Radio. It is a high-performance professional data transmission radio module realized by DSP technology and radio technology. The wireless module extends to many systems, industrially controlled switching io devices, 485 wireless transmission devices dw-m1, analog acquisition and control devices. From the use of the earliest button code, telegram, analog radio module plus wireless MODEM, to the current digital radio module and DSP, software radio; transmission signal also from code, low-speed data (300 ~ 1200bps) to high-speed data (N * 64K ~ N*E1).
Typical applications include industrial automation, oilfield data acquisition, railway wireless communications, coal mine safety monitoring systems, pipe network monitoring, hydrological monitoring systems, and wastewater treatment monitoring.
High-performance professional data transmission radio modules realized by DSP technology and radio technology are called wireless modules. For example, WiFi modules and Bluetooth modules are wireless modules. So what is a combination module? This small series will introduce the next combination module for everyone.
The familiar WiFi, Bluetooth module, and GPS module are all based on a communication module, while the combined module is based on two or more modules.
1, WiFi + BLE Bluetooth combination module
Highly integrated WiFi + BLE Bluetooth combo module, support WiFi, BLE Bluetooth multiple data interfaces, WiFi and Bluetooth can be transmitted through the UART serial port.
2, WiFi + Bluetooth + BLE Bluetooth module
Bluetooth is divided into traditional Bluetooth and low-power Bluetooth. WiFi+Bluetooth+BLE Bluetooth module means that the module WiFi supports SDIO interface, Bluetooth supports UART interface, and supports PCM Bluetooth peripheral transmission.
3, GSM / GPRS + GNSS combination module
Integrated high-performance GNSS, quad-band GSM/GPRS GSM/GPRS+GNSS module combination module.
4, car integrated navigation module
The GNSS/INS integrated navigation and positioning technology can provide high-precision positioning vehicle-mounted integrated navigation module for vehicles in tunnels, garages and other environments.
5, indoor and outdoor integration program
Outdoors still use mature GPS/BDS satellite positioning + mobile base station to assist positioning, and indoor use Bluetooth positioning technology.
The selection of the combination module can be determined according to the actual wireless communication requirements of the product.
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