xbee wireless communication

Study log 1 (20141206) in the wireless communication network and 20141206 in the wireless communication network Disclaimer: the following content is self-taught online notes. Some content and images are imported from the Internet. If there are similarities, it is purely a coincidence to reference them. If there is any

I. Overview of Smart Grid is designed to ensure the safety and stability of power system. It is combined with the safety and stability control system of power system and dispatching automation system, which is called the three pillars of power system safe and stable operation. China's smart grid after several 10 years of construction, has begun to take shape, through the satellite, microwave, carrier, optical cable and other means of communication t

In wireless communication, the nrf24l01 wireless transceiver module produced by Nordic is the choice of many players. It is GHz ~ The single-chip wireless transceiver chip in the GHz ISM band has the advantages of strong functions, convenient control, and low price. One piece of nrf24l01 can receive data sent from six

The Protocol of the ultra-wideband wireless technology-the ultra-wideband wireless protocol. If you know about this technology, you must have some knowledge about this protocol. Next, this article mainly introduces the UWB wireless communication layer in the UWB wireless pro

This is the "PLC wireless communication expert" Team for users to organize the 20 Siemens PLC200 Communication program examples. Can save project time for PLC programmer.You just need to understand the s7-200 serial settings, and the basic knowledge of the Modbus protocol, reference to these programs can be completed between the PLC and PLC data exchange, can als

communication. Core Idea: there is a possibility neededNot recover lossIn order to sure QoS parameters, e.g. Delay, throughput. Many protocols are based on this concept, such as selective discarding, adaptive retransmission,Etc. The most famous PR application for sctp should belong to the PR-SCTP, which gives a possibility for the sender to have y the capacity er that certain packets shoshould be re-transmitted. 3. K. K. Lam, J. M. Chapin, and V. W.

In the industrial field by the PLC remote control inverter application is very common, if the trench wiring inconvenience or frequency converter on the mobile device, then the use of wireless communication is the best solution.　　　The benefits of this program are: No operating costs, no card, autonomous group network, distance, can pass through obstacles, bypassing the barrier,

ZigBee Wireless Communication Technology and Its Application [Date:] Source: Automated instrumentation by Zhou Yi Ling Zhihao Wu Qinqin [Font: large, medium, and small] 　 0 introduction the industrial field has improved labor productivity and reduced production costs by introducing various advanced technologies in the modernization process. Among these technologies, the most typical is

Presumably, mobile phones are no longer familiar to everyone. Its biggest feature is mobile and wireless. So do you know the protocol principle? This article will introduce you in detail the wireless communication protocol, that is, the meaning and related content of WAP. WAP Wireless

dynamic connection library, you should declare API communication functions and define constants in the global variable definition before calling VB. In our practice, it is more convenient and convenient to use the VB control to implement communication than to call the sdk api to dynamically connect to the library, and the same function can be implemented with less code, this is the advantage of using the V

With the continuous development of communication and information technology, the application of short-range wireless communication technology is accelerating, and it is becoming more and more mature. In general, as long as the communication between the two sides through radio waves transmission information and transmis

PLC (Programmable Controller) is widely used in the industrial control field, and its ease of use is self-evident for slightly knowledgeable people. However, the data communication and setting of PLC are both implemented through RS485 wired mode. For general users, the PLC equipment is designed and integrated in the transformation or improvement project, in this case, it is very troublesome to re-deploy the commun