The Difference Between GPRS, 433, Wifi, Zigbee

1. What is the GPRS module? What are the functions?

GPRS DTU is a kind of wireless data terminal for the Internet of Things. It uses the public carrier network to provide users with wireless long-distance data transmission. It uses high-performance industrial-grade 16/32-bit communication processors and industrial-grade wireless modules to operate in embedded real-time The system is a software support platform and provides RS232 and RS485 (or RS422) interfaces at the same time, which can be directly connected to serial devices to realize the function of transparent data transmission. The GPRS DTU has been widely used in the M2M industry in the Internet of Things industry chain, such as smart grid, smart transportation, smart home, finance, mobile POS terminals, supply chain automation, industrial automation, smart buildings, fire protection, public safety, environmental protection, Meteorology, digital medical treatment, remote sensing survey, agriculture, forestry, water affairs, coal mining, petrochemical and other fields.

2. What is the meaning of the wireless transparent transmission module, and in which areas is it applied?

The wireless transparent transmission module, as the name implies, is the transparent transmission of data. Transparent transmission means that the length and content of the data of the sender and receiver are exactly the same during the data transmission process, without any data processing, which is equivalent to a data line or a serial line; DATA86 wireless transparent transmission module is widely used in hydrology and water conservancy, environmental protection, meteorology, geology, agriculture and other industries.

3. Does gprs and wireless communication mean the same thing?

Of course not the same thing! Put it this way, wireless communication can be understood as the use of wireless transmission for information transmission!

Wireless communication includes many different methods, such as GSM, WLAN, walkie-talkie, satellite TV, Bluetooth, infrared, radio, etc., all belong to wireless communication.

GPRS is the abbreviation of General Packet Radio Service (General Packet Radio Service), which is only a mobile data service available to GSM mobile phone users. For a more detailed explanation, you can look at the relevant information, so I won’t write more here!

4. What is the difference between zigbee module and WiFi module?

Zigbee and WiFi generally use the 2.4G frequency band, and the communication mechanism standards are different. Zigbee is suitable for small data, low power consumption, good stability, and is suitable for industrial applications. However, WiFi is suitable for large data volume, short distance, and relatively poor stability, and is mainly used for home and commercial applications. The Zigbee module manufacturer uses the 433M domestic unlicensed frequency band for communication, which has good anti-interference performance and strong penetrability. The measured distance can reach 4-6KM.

5. What is the difference between zigbee module and 433 wireless module?

The essential difference between ZigBee and 433 wireless ad hoc network module is the working frequency band and communication mechanism. Generally, ZigBee adopts the standard protocol stipulated by the International Zigbee Alliance, and uses the 2.4G frequency band for transmission and networking. The distance is not ideal and there are many interference sources. Generally, it is mainly used in smart furniture and short-distance networking applications. If you use the 433m wireless ad hoc network module, you can learn about the WBee module, work on 433m earlier, and independently develop the communication networking protocol with 6lowpan technology. It supports IPV6 communication, with few interference sources and long communication distance. The measured visual distance supports 4-6KM.

6. What are the functions of the zigbee module?

First of all, what is ZigBee: ZigBee is a standards-based remote monitoring, control and sensor network application technology. In order to meet people's needs for standard wireless network solutions that support low data rates, low power consumption, security and reliability, and cost-effective, the ZigBee standard came into being. The core markets are consumer electronics, energy management and efficiency, healthcare, home automation, telecommunications services, building automation, and industrial automation.

Secondly, what is a ZigBee module: The peripheral circuit introduced around the ZigBee chip technology is called "ZigBee module". Common ZigBee modules follow the international standard of IEEE802.15.4 and run on the 2.4GHZ frequency band. In addition, Europe The standard is 868MHZ, North America is 915MHZ.

Later, what does the ZigBee module do: At present, the ZigBee module is more to replace the original wired control method, and adopts wireless control to save wiring, break the distance control limit, and realize the linkage between devices through the establishment of a network.

Currently known ZigBee applications are: industry, agriculture, petrochemical industry, Internet of Things, smart home, smart lighting, smart city, etc.