The advent of the era of industrial wireless communication has brought you a solution to modify the orientation of the device at will. The wireless communication between the devices allows you to change the location of the device anytime and anywhere, no longer limited by wired communication wiring. But nowadays wireless communication forms are diverse, including free small frequency band (433Hz, 470Hz), high frequency band 2.4GHz (ZIGBEE, Bluetooth, WIFI), charging 2G, 3G, 4G network. Which communication protocol to choose and which communication device to use has become a top priority for people!
1. At present, industrial IOT has become a very popular name in the industry. So what is the industrial IOT? Industrial IOT stands for Industrial Internet, which is essentially machine-to-machine support that extends to the cloud. To be simple, in the inter-related control of industrial machines, some machines (gateways) that have data, instructions, and status uploads to the cloud function, and other data-free machines (nodes) through data exchange with the cloud. ) Support. In this way, IOT is not a real new idea, but a new term description of the existing system.
So what is the specific application of industrial IOT? To give a simple example, the smart home industry in China is changing with time, and the era of automation is close to our life. However, the most crucial point of smart home is how to Each device (node) communicates directly with each other to achieve the overall effect and achieve the characteristics of intelligence. Traditional wired communication (RS232, RS485) shows its own drawbacks at this time. In the initial placement of the home equipment, the overall planning, it takes a lot of manpower and material resources to design, through a fixed wall to complete the system communication. At this time, although the system has reached the expected intelligence, but the abyss considers, will the decoration of the home be the same? Will the same arrangement for a long time cause people's aesthetic fatigue? At this time we want to renovate the decoration, we will have Faced with a rather headache: the wall's routing cannot be changed and the device cannot change its position! A choice is placed in front of: Is the wall re-wiring? Or is the decoration ruining the system?
2. At present, indoor communication, communication distance is relatively short, penetration requirements are low, free small frequency band and high frequency band can already complete the requirements, so the cost is high, each device needs SIM card 2G, 3G, 4G network It looks a bit ribbed. However, the choice of small frequency band and high frequency band is also a big problem. Next, I will explain the characteristics of ZLG's wireless communication solution for you, and clear up the doubts for you.
In order to follow the development of industrial IOT and promote the development of industrial wireless communication, ZLG has established an experienced design team. The designers have more than 10 years of wireless R&D experience, regardless of the stable communication of the equipment, the spread spectrum technology of the protocol, Or the impedance matching of the antenna has its own mature solution. Introduced various wireless communication modules developed by ourselves.
In terms of Zigbee, ZLG introduced the Zigbee transparent transmission communication module of the ZM516x series and the AW824/AW5410X series ZIGBEE core board supporting secondary development, which all have the Fastzigbee protocol independently developed by ZLG. The protocol has a fast startup speed. The response speed is fast, the data transmission efficiency is high, the number of network capacity terminal nodes really reaches 65535, the power consumption of the terminal node is as low as 100nA, which is lower than the current 100% Zigbee module, supports multi-level relay function, and the network has self-adjusting and self-repairing. Other features, support multi-channel remote IO and remote AD, support short address function, can be freely modified with user application, with a larger link budget, etc., the module can also receive MCU data through the UART port, directly transparent transmission, operation Simple, low packet loss rate, this module has become the best choice for Zigbee communication.
Supporting the secondary development of the AW824/AW5410X series Zigbee core board, based on years of market experience, a series of MCUs of different levels are integrated on the core board, which are equipped with M0+ and M4 MCUs, and the A0824 frequency of the M0+ core is 30MHz, M4 core AW5410X frequency is 100MHz, and there are enough secondary development of memory, peripherals, etc., which can reduce the development cycle of user development products, reduce the development difficulty of developers, improve stability, improve The overall performance makes it a boost to the product development cycle and the preemption of the market.
Zigbee has a strong penetrating power and is best suited as a wireless device that requires wall-to-wall communication and battery power.
In terms of small-frequency communication, ZLG has introduced the ZM433SX and ZM470SX series modules. The module uses the original military LORA spread spectrum technology to achieve a better communication rate, transmission distance and anti-interference characteristics by adjusting the spreading factor. Good balance, and the module integrates +20dBm adjustable power amplifier, which can achieve more than -148dBm receiving sensitivity, transmit power in the range of -8.5dBm to 20dBm, and the link budget reaches the industry leading level, which perfectly solves the small data volume. Ultra-long-range communication in complex environments and where reliability is critical, making this solution the choice for small-frequency communications.
3. Are you still guilty of using the 485 bus and the later modification of the CAN bus? I believe that after reading this article, you must have the right solution. In the long-distance wireless communication has become the main force of industrial communication today, today, wired devices are difficult to wire, do you believe that wireless communication will become the most important way of communication in the future?
KENNEDE ELECTRONICS MFG CO.,LTD. , https://www.axavape.com