As a key component of the Internet of Things devices, the 4g modem data transmission unit plays a vital role in the power monitoring system. It can not only collect, transmit and process data, but also interact with the host computer or application server to provide information exchange and data sharing functions. The following is a detailed description of the remote data transmission and alarm functions of 4g modems in power monitoring systems.
4g modem is an intelligent industrial communication terminal with low power consumption, strong anti-interference capability, customizable and modular development characteristics. It is usually designed in a standard package and can be widely used in various industrial fields, including automotive, power, petrochemical, metallurgical, and so on. In the power monitoring system, the 4g modem is mainly responsible for transmitting the collected power system data to the remote server through the wireless network to achieve real-time monitoring and data analysis.
Data acquisition and conversion:
4g modem can collect various data in the power system, such as current, voltage, power factor, etc.
Wireless communication network:
4g modems usually use cellular networks such as 2G, 3G, 4G or NB-IoT to achieve wireless connection with the Internet.
Data transmission protocol:
Data transmission and exchange between 4g modems and remote servers are usually carried out using data transmission protocols such as TCP/IP, MQTT, and HTTP.
With the built-in processor and memory, the 4g modem can preprocess and format the collected data to meet the data receiving requirements of the remote server.
With the help of the IoT card and the network of mobile communication operators, the 4g modem can transmit the collected data to the remote server in real time.
These protocols ensure reliable transmission and efficient exchange of data, enabling remote servers to obtain the real-time operational status of the power system.
Alarm trigger conditions:
4g modem can make real-time judgment based on preset alarm trigger conditions such as current overrun and voltage abnormality.
Once the alarm trigger conditions are met, the 4g modem will immediately start the alarm process.
4g modem can send alarm information to remote servers or designated monitoring terminals through wireless networks.
The alarm information includes key information such as alarm type, alarm time, and alarm value, so that monitoring personnel can quickly understand the abnormal situation of the power system.
After receiving the alarm information, the monitoring personnel can take corresponding measures according to the actual situation.
The 4g modem also supports remote control and data adjustment functions, allowing monitoring personnel to remotely intervene in the power system when necessary.
In the power monitoring system, 4g modems are widely used as terminal devices for distribution network automation. By collecting and calculating data such as position signals, voltage, and current of switchgear, 4g modems can complete the opening and closing operations of switches, as well as perform functions such as fault location, isolation, and automatic power restoration for distribution lines. These functions not only improve the operational efficiency and reliability of the power system, but also reduce the need for on-site manual operations, thereby enhancing work efficiency and safety.
