4G data transmission module
The 4G data transmission module developed by Zongheng Intelligent Control is a shell-type data transmission terminal. There are two products for users to choose: rail type and ear-mounted type, which can meet different application scenarios. This product is developed to realize the mutual transmission of data between serial devices and network servers through the operator’s network. By simply setting up the host computer, you can easily use this product to achieve two-way transparent transmission of data from the serial port to the network. The operation is stable and reliable, and can be widely used in power systems, industrial monitoring, traffic management, environmental monitoring, meteorology, water conservancy, coal mines, petroleum, new energy and other industries, providing strong support for communication networking and wireless transmission of projects.
Product display
| Exterior | Model/Type | interface | Function |
 |
ZHC4013 (ear-mounted) | RS485 |
Scheduled restart/control Actively collect and report Support MQTT, json 4-way Socket… |
 |
ZHC401C | RS485 |
Scheduled restart/control Actively collect and report Support MQTT, json 4-way Socket… |
4G data transmission module function
√ Support JSON, Modbus RTU/TCP
√ 1 RS485 interface
√ TCP_Client/ MQTT_Client
√ Set time point to trigger action
√ Cloud forwarding, cloud networking
√ Network registration package, heartbeat package
√ Hardware watchdog
√ Data triggering and regular reporting
√ Remote configuration and remote upgrade
√ The host computer supports import and export of configuration files
With the continuous expansion of application fields such as data monitoring, wireless communications and EDA technology, people have put forward higher requirements for the collection accuracy, collection speed and data storage capacity of the data collection system.against
Due to the shortcomings of the current data acquisition system, an embedded high-speed data acquisition system design based on ARM7 processor LPC2220 is proposed to meet the system’s high-speed, real-time, and large data storage needs. In addition, due to the poor anti-interference ability of analog signals, which is not conducive to transmission, digital signals are usually used for transmission1-2]. Using wireless communication, the system structure is lightweight and easy to maintain. It is suitable for data detection in disaster early warning such as flood control and drought prevention, such as rainfall collection, hydrological station water level monitoring, etc.’).
The so-called data acquisition is to convert some physical quantities into analog electrical signals through sensors, process them, and then convert them into digital quantities that can be recognized by the computer and send them to the computer (4. The key issue in data acquisition is the acquisition of
Combining speed and precision. The acquisition speed is mainly related to the sampling frequency and A/D conversion speed. The acquisition accuracy is mainly related to the number of bits of the A/D converter. The design of a high-speed data acquisition system needs to resolve the contradictions in speed, accuracy, and data storage of the system. The data acquisition system introduced in this article uses Philips’ LPC2220 microprocessor. Data acquisition system (DAS) can be divided into analog signal conditioning circuits, analog-to- digital converters, data acquisition and storage, clock circuits, system timing and logic control circuits according to functions.