Node-red is a node-based.An open source orchestration tool for JS that allows users to create event-driven applications through a drag-and-drop interface.In the field of Internet of Things, Node-red can be used as a message middleware to connect various devices and systems together.Realize data collection, processing, analysis and visualization.
● Visual programming: Node-red provides an intuitive graphical interface.Users can create complex processes by simply dragging and dropping nodes and connecting them.
Flexibility: Since Node-red is based on Node. JS, it supports a large number of Nodes.With JS modules and libraries, users can customize and extend functionality as needed.
● Integration: Node-RED can easily integrate various hardware and software, including sensors, actuators, databases, cloud services, etc.
● Community support: Node-RED has a large user community and rich documentation resources, so users can ask for help when they encounter problems.
With the rapid development of the Industrial Internet of Things (IIoT), the edge computing gateway has become an important bridge between the physical world and the digital world.On this bridge, Node-red plays an indispensable role as a process orchestration tool.So how exactly does Node-RED for edge computing gateways help the enterprise?
The edge computing gateway is deployed on the device side and can collect and process data from various sensors and actuators in real time.Through Node-RED's visual programming interface, enterprises can easily build data processing processes to achieve real-time analysis and processing of data.This not only improves the speed of data processing, but also reduces the delay of data transmission.Thus providing enterprises with faster response capability and more accurate decision support.
Traditional Internet of Things applications often rely on cloud services for data processing and storage.However, this can lead to delays in data transmission and security issues.Through the Node-red of the edge computing gateway, enterprises can preprocess and filter data locally.Only valuable data is transmitted to the cloud, thus reducing the dependence on cloud services and improving the efficiency and security of data processing.
Node-RED's visual programming interface enables enterprises to quickly build and test prototypes of IoT applications.Through simple drag-and-drop operations, enterprises can quickly build data processing processes and verify and adjust them in real time.This greatly shortens the development cycle, improves the development efficiency, and enables enterprises to launch new products and services faster.
Based on the open source nature of Node. JS, Node-red enables enterprises to flexibly integrate various systems and devices according to their needs.Sensors, actuators, databases and cloud services can be seamlessly connected and work together through Node-RED.At the same time, Node-red also supports the development of custom nodes, so that enterprises can expand and optimize their functions according to specific needs.
Through the Node-red of the edge computing gateway, enterprises can realize the localized processing and storage of data.The cost and complexity of data transmission are reduced.At the same time, the visual interface of Node-red makes it easier for operation and maintenance personnel to monitor and manage the operation status of the system.Find and solve problems in time. This greatly reduces the cost of operation and maintenance, and improves the stability and reliability of the system.
The help of Node-red of edge computing gateway to enterprises is mainly reflected in real-time data processing and analysis, reducing cloud service dependence and rapid prototyping.Development and deployment, flexible system integration and expansion, and reduction of operation and maintenance costs.With the continuous development of industrial Internet of Things, it is believed that Node-red will play a more important role in the digital transformation of enterprises.
In the field of Industrial Internet of Things (IIoT), the flow and processing of data is the core.Node-red, as a powerful orchestration tool, has found a wide range of applications in this area.This article will introduce some of the main application scenarios of Node-red in the industrial Internet of Things.To help beginners better understand its value and role in the industrial environment.
In an industrial environment, a variety of sensors and actuators are constantly generating data.Node-RED can be used as part of an edge computing gateway to collect this data in real time and perform preliminary pre-processing.Through Node-red's visual interface, engineers can easily build data streams, clean, transform and aggregate data.Provide support for subsequent analysis and decision-making.
The event-driven nature of Node-RED makes it ideal for building event-driven applications.In the industrial Internet of Things, events may come from the failure of equipment, the stoppage of production line or other abnormal conditions.Through Node-red, enterprises can define response logic for these events, such as sending alerts, triggering workflows, or adjusting device parameters.O as to realize automatic and intelligent management.
In the industrial Internet of Things, various devices need to communicate with each other and work together.Node-red can be used as message-oriented middleware to realize data exchange and command transmission between devices.By building data streams, enterprises can define communication protocols and interaction logic between devices.O as to realize the interconnection, intercommunication and cooperative operation of the equipment.
Node-red can not only process data, but also display data in the form of charts, dashboards and so on.Provide users with an intuitive visual interface.This allows engineers and managers to know the operation status of the equipment, the efficiency of the production line and other key indicators in real time.To make more informed decisions.
Industrial Internet of Things systems often involve multiple subsystems and devices, which need to achieve cross-platform integration and expansion.The open source nature and flexible scalability of Node-RED make it ideal for system integration.Through Node-RED, enterprises can easily connect different systems and devices to achieve data sharing and collaborative work.At the same time, Node-red also supports the development of custom nodes, so that enterprises can expand and optimize their functions according to specific needs.
Rapid prototyping and iteration are critical in industrial IoT projects.Node-RED's visual programming interface and flexible node system enable engineers to quickly build and test prototypes.Through simple drag-and-drop operations, engineers can quickly build data processing processes and verify and adjust them in real time.This greatly shortens the development cycle and improves development efficiency.
Node-red has a wide range of applications in the industrial Internet of Things, ranging from data acquisition and preprocessing to event-driven application development.Communication and collaboration between devices play an important role.With the continuous development of industrial Internet of Things, Node-RED will continue to bring more efficient and intelligent solutions to enterprises.
As an Industrial Internet of Things (IIoT) device, USR-M300 integrates Node-RED as one of its core functions.The Node-red feature of the USR-M300 provides users with a powerful, visual application orchestration tool,It enables users to easily build, deploy and manage various industrial Internet of Things applications.
Specifically, the Node-RED feature of the USR-M300 has the following features:
Node-red of USR-M300 provides an intuitive visual programming interface.Users can create and edit data streams with simple drag-and-drop operations.This interface translates complex programming logic into graphical nodes and connecting lines,It makes it easy for people without programming background to get started.
Node-red of USR-M300 has a rich node library built in, including various input, output, processing, function and debugging nodes.These nodes can meet the various needs of users in the construction of industrial Internet of Things applications.Such as data acquisition, data processing, equipment control, data visualization and so on.
The USR-M300's Node-RED gives users the flexibility to orchestrate data flow and processing logic.Users can connect different nodes to form a complex data processing flow.Realize data conversion, filtering, aggregation and other operations.At the same time, Node-red also supports conditional judgment, loop and other control structures, so that users can build more flexible and intelligent applications.
The Node-RED of the USR-M300 supports both local deployment and remote management.Users can run Node-RED applications directly on the USR-M300 device and access and manage them remotely through a Web interface.This makes it easy for users to monitor the running status of the application, debug problems, and make adjustments in real time.
The USR-M300's Node-RED supports integration and interoperability with other systems.Through Node-red's node library, users can easily connect USR-M300 with other Internet of Things devices, databases, cloud services, and so on.Realize the sharing and exchange of data. This provides users with greater flexibility and scalability.
USR-M300's Node-RED is based on the open source Node-RED project, with a large user community and rich documentation resources.This means that users can get help and support from the community, as well as enjoy the continuous updates and upgrades of Node-RED.
The Node-red feature of the USR-M300 provides the user with a powerful and flexible tool,It enables users to easily build, deploy and manage various industrial Internet of Things applications.Whether it is data acquisition and processing, equipment control or data visualization, Node-red of USR-M300 can meet the needs of users.And bring more efficient and intelligent solutions to enterprises.
The edge mode is edge gateway by default. User can change the mode to Graphical Programming mode. The Graphical Programming is based on Node RED, in this mode, user can develop the application about the edge computing that they need. USR-M300 Start Guide pusr.com 1 11 How to use Node-RED, please click on the link
Note: This setting needs to reboot the M300 gateway. Waiting another 2 minutes after the M300 starting, then the Graphical Design page can be opened
The data reporting function will upload the point data to the server in Json format.Customers can customize the Json templates to meet the requirements of the server,Make sure that the format of the uploaded data meets the parsing requirements of the server, and the actual name of the data point can be defined in the Json template.However, Json template configuration requires the following considerations:
1、 The Json template in the group is empty by default, which can be designed by yourself and meet the requirements of Json format.
2、 The Value in the Json template is a character type, and the data point name needs to be filled in.The actual acquisition value corresponding to the point name will be substituted.
3、 Example: The collected values of the edge points node0101 and node0102 are 30 and 20 respectively; Json template set to { "Current": "node0101","Voltage":"node0102"}; The format of the actual reported data is: { "Current": 30, "Voltage": 20 }.4. In addition to the data point, the Json template can also be added with some specific identifiers, such as the firmware version of the product, SN,MAC and other parameters, which can be treated as the unique identification of the device or device identification information.The relevant identification name is directly added at the value position of the Json template. During the reporting process,The data corresponding to the identification name will be substituted and reported. For example, report the timestamp, and set the Json template as { "time": "sys _ local _ time" }.The data reported by the actual device is { "time": "2023-05-27, 22:35:44" }.
