The data acquisition and transmission instrument is a key device in the field of environmental monitoring. It is responsible for connecting on - site instruments and the monitoring center, achieving accurate acquisition, efficient processing, and stable transmission of pollution source data. As a core component of the environmental protection supervision system, its technical characteristics and functional design strictly follow national standards, providing reliable support for monitoring scenarios such as air, water quality, and noise.

 

I. Analysis of Core Functions

1. Multi - source Data Acquisition and Processing

The device collects signals such as voltage, temperature, and flow in real - time through digital channels, analog channels, and switch - quantity channels. It integrates signal conditioning, filtering, and calibration functions to ensure data accuracy. The built - in processor supports the calculation of statistical indicators such as averages and extreme values, meeting the requirements of standards such as HJ 212 - 2017 for data format and frequency.

2. Large - capacity Storage and Security Assurance

Equipped with flash memory or SD card media, it can store more than five years of historical data and one year of operation records without data loss in case of power failure. Through data encryption and breakpoint resume technology, it ensures the integrity and security of data, providing a reliable basis for law enforcement and supervision.

3. Flexible Communication and Remote Management

It is compatible with GPRS, 4G/5G, VPN private networks, and Beidou satellite communication, adapting to complex network environments. It supports one - point multi - transmission, connecting to multiple monitoring centers simultaneously. The remote Web maintenance function allows real - time parameter modification and program upgrading, reducing on - site operation and maintenance costs.

4. Intelligent Monitoring and Control

It can automatically identify the type of pollution source (water, gas, etc.) and联动控制 front - end instruments. The built - in lithium battery can maintain operation for 6 hours after a power failure, ensuring continuous monitoring.

 

II. Technical Advantages and Compliance

1. Multiple Redundancy Design

Industrial - grade hardware and modular structure improve the stability of the device, supporting parallel processing of multiple signals (such as 4 - 20mA analog signals). The expansion interface is compatible with third - party instruments, facilitating system upgrades.

2. Standard Compatibility

It strictly follows the latest specifications such as the "Data Transmission Standard for Automatic Monitoring (Monitoring) Systems of Pollution Sources", realizing data interconnection between enterprises, operation and maintenance units, and provincial and municipal platforms, and solving the governance problem of inconsistent interfaces of multi - manufacturer equipment.

3. User - friendliness

It is equipped with a touch screen and a graphical interface, supporting local query and parameter setting. The zero - code operation mode does not require secondary development, reducing the threshold of use.

 

III. Typical Application Scenarios

1. Air and Exhaust Gas Monitoring

It collects parameters such as PM2.5 and VOCs in real - time and transmits them to the supervision platform via the 4G network, assisting in pollution source tracing and emission control.

2. Water Quality and Sewage Treatment

It monitors indicators such as COD and ammonia nitrogen and calculates the total amount of pollutants in combination with flow data, providing a basis for optimizing sewage treatment processes.

3. Noise and Dust Monitoring

It integrates sensor data, dynamically analyzes environmental parameters of construction sites, and supports over - standard early warning and law enforcement evidence collection.

4. Extended Applications in Smart Cities

It is suitable for scenarios such as temperature and humidity monitoring in smart agriculture and traffic flow monitoring, demonstrating the device's expansion potential in multiple fields.

Through standardized data collection and intelligent analysis, the data acquisition and transmission instrument has become the infrastructure for the digital transformation of environmental governance, providing key technical support for building a precise and real - time ecological supervision network.