First, the difference between architecture and function
IoT gateway devices are typically based on programmable logic controller (PLC) technology,It is an Internet of Things (IoT) device dedicated to industrial control.IoT gateway devices integrate data acquisition, processing and control functions, with powerful real-time control capabilities and stability.It can communicate with field devices through various sensors and actuators.And the automatic control of the industrial process is realized through the control algorithm.IoT gateway devices also support a variety of industrial communication protocols, such as Modbus, Profibus, Ethernet, and so on.Enable reliable data exchange with other devices.
In contrast, IoT cellular modem is mainly used for data transmission and remote monitoring. It is usually a stand-alone device,It is responsible for transmitting the data of the field equipment to the remote server or monitoring center through wireless or wired mode.IoT cellular modem mainly has the functions of data communication and remote monitoring.The connection to the remote server can be via wireless communication technology (e.g. Cat-1, 4G, NB-IoT, etc.) or Ethernet communication.IoT cellular modem generally supports standard protocols such as TCP/IP, and realizes remote monitoring and data management through data transmission.
As industrial control devices, IoT gateway devices usually support multiple communication modes and industrial communication protocols.It can communicate with other devices through serial port, Ethernet and so on, and support widely used communication protocols.IoT gateway devices can connect with sensors, actuators, human-machine interfaces and other devices.Data exchange and control command transmission are realized by communication protocol.This gives IoT gateway devices a wide range of compatibility and flexibility in industrial automation control systems.
The IoT cellular modem is mainly used for data transmission through wireless communication or Ethernet.It usually uses wireless communication technology, such as Cat-1, 4G, NB-IoT, etc., to transmit data from field devices to remote servers or cloud platforms.IoT cellular modem realizes the collection, transmission and management of field device data through the supported communication protocol and transmission mode.It can adapt to different environments and application requirements, and provides a convenient solution for remote monitoring.
IoT gateway devices are widely used in the field of industrial automation, and are one of the core devices to realize industrial process automation control.It plays a key role in factory production lines, energy management, transportation and other fields.Through IoT gateway devices, real-time monitoring and control of the production process can be achieved, and production efficiency and quality can be improved.And realize automatic management and optimization.
IoT cellular modem is mainly used in the field of remote monitoring and data transmission.It is commonly used in environmental monitoring, intelligent agriculture, intelligent buildings and other scenarios for real-time data acquisition and remote monitoring.Through IoT cellular modem, centralized monitoring and management of devices distributed in different locations can be realized.And improve that operation efficiency of the equipment and the accuracy of fault diagnosis.
IV. Differences in data processing
IoT gateway devices are powerful in data processing.Because it is based on PLC technology, real-time data acquisition and processing can be carried out. IoT gateway devices can be controlled by programming logic.Various operations, logical judgments and control commands are generated for the collected data, so as to realize the precise control of the industrial process.In addition, IoT gateway devices usually have high computing power and storage capacity, and can process large amounts of data and complex algorithms.Meet the requirements of industrial automation control.
IoT cellular modem is relatively weak in data processing.Because it is mainly used for data transmission and remote monitoring, its data processing capacity is limited.The IoT cellular modem usually transmits the collected data directly to a remote server or cloud platform for further processing and analysis.It focuses more on the data transmission and connection functions, and reliably transmits the data of field devices to the designated destination.
V. Safety difference
Because IoT gateway devices are directly involved in the control of industrial processes, their security requirements are high.IoT gateway devices typically have security mechanisms such as firewalls, access controls, and data encryption.To protect industrial control systems from malicious attacks and data breaches.
IoT cellular modem have relatively low security requirements.Because it is mainly used for data transmission and remote monitoring, the security is mainly reflected in the protection of data transmission process.IoT cellular modem usually uses encryption transmission, authentication and data integrity check.Ensure the security of data during transmission.
There are obvious differences between IoT gateway devices and IoT cellular modem in many aspects.When choosing the right solution, use IoT gateway devices or IoT cellular modem depending on the specific application requirements.If it is necessary to realize industrial automation control, it has powerful real-time control and data processing capabilities.IoT gateway devices can be selected.If it is necessary to realize the remote monitoring and management of equipment data, and pay attention to the data transmission and connection functions,An IoT cellular modem can be selected.
Differences between IoT LTE routers and IoT cellular modem
IoT LTE routers and IoT cellular modem are two common network devices, which play an important role in network communication.Although they can realize data transmission and communication, their functions and application scenarios are different.The following are the main differences between IoT LTE routers and IoT cellular modem:
First, different functions
IoT LTE routers are devices used to connect multiple networks, enabling the interconnection of different devices in the network.IoT LTE routers enable communication between different networks by forwarding packets to different networks.IoT LTE routers have certain routing algorithms to achieve efficient transmission of data packets in the network.
IoT cellular modem is a data acquisition terminal used to collect and transmit data from field devices to a remote server or cloud.IoT cellular modem usually uses wireless communication or wired communication, which can realize real-time data transmission and monitoring.IoT cellular modem usually has many functions such as data acquisition, processing, storage, transmission and so on.It can meet different data acquisition needs.
2. Different application scenarios
IoT LTE routers are commonly used in office, home, campus, enterprise and other networks to connect different devices and networks.Achieve interconnection and interoperability.IoT LTE routers are typically used to build networks such as local area networks (LANs) and wide area networks (WANs) for data transmission and communication.
IoT cellular modem is usually used in industrial automation, Internet of Things, environmental monitoring and other fields.Used to collect and transmit data from field devices to a remote server or cloud.IoT cellular modem are usually able to adapt to harsh environments and conditions, and have the characteristics of waterproof, dustproof and anti-corrosion.It can meet the needs of various field data acquisition.
Third, the working principle is different.
IoT LTE routers work by sending packets from a source address to a destination address.IoT LTE routers enable packets to be forwarded and transmitted across the network by selecting a superior path.IoT LTE routers typically have multiple interfaces and routing algorithms to enable efficient transmission of packets across the network.
The working principle of IoT cellular modem is to integrate the functions of data acquisition, processing, storage and transmission of field devices.Realize real-time transmission and monitoring of data. The IoT cellular modem usually adopts a wireless communication mode or a wired communication mode,The collected data is transmitted to a remote server or cloud, and real-time monitoring and remote control can be carried out.
