Drainage pipe network water quality monitoring system: The system locks in illegal discharge behaviors through abnormal flow and water quality. [Model recommendation: TH-GWS03, IoT integrated device, customized service supported by Yunjing Tianhe] The drainage pipe network water quality monitoring system can accurately lock in illegal discharge behaviors through multi parameter real-time monitoring, flow water quality data linkage analysis, intelligent traceability algorithms, and automated warning mechanisms, providing core support for urban water environment management. Compare the changing trends of water quality parameters at different monitoring points (such as COD and ammonia nitrogen concentration gradients) to determine the direction of pollutant sources. For example, if the COD concentration at downstream monitoring points in a certain area is significantly higher than that upstream, and the concentration changes linearly, it can be inferred that the pollution source is located in a certain section of the pipeline between upstream and downstream. Based on traffic data, determine whether there is a sudden change in traffic caused by abnormal emissions. For example, if a rainwater and sewage mixing point experiences a sudden increase in flow during non rainy periods, and water quality monitoring shows that COD and ammonia nitrogen concentrations exceed the standard, it can be locked as domestic sewage or industrial wastewater illegally mixed into the rainwater pipe network. The system preset the safe range of water quality indicators (such as COD ≤ 50mg/L, ammonia nitrogen ≤ 5mg/L). When the monitoring data exceeds the threshold, an automatic warning mechanism is triggered to notify management personnel through SMS, APP push notifications, platform pop ups, and other means. For example, if a city's drainage network monitoring system detects a sudden drop in pH value to 2 (strong acidity) in a certain area at night, the system immediately alarms and pushes it to the environmental law enforcement department.

1、 Product Overview

The low-power collection microsystem of the pipeline network directly transmits JSON data to the designated server through 4G and supports MQTT protocol transmission.

Other formats of data are transmitted to our company's cloud platform via 4G. Our company provides an HTTP interface, and other platforms obtain data through this interface.

The built-in 8GB TF card can store the read data in the memory card.

The baud rate of each serial port communication can be modified through commands, and the required sensor parameters can also be added, modified, and deleted through commands.

2、 Functional Features

1. Equipped with a built-in 3.6V 152AH lithium battery, ensuring continuous operation for 3 years.

2. IP68 waterproof rating, no need to worry about pipeline swelling.

3. There are two 485 interfaces, one for device configuration and one for sensor reading

4. Supports Modbus RTU sensor reading and data saving function

5. The serial port baud rate can be independently modified

6. The sensor communication port supports a maximum of 32 nodes

3、 Specification parameters

Working voltage: 3.6V with built-in lithium battery

Product size: 204x82x162mm

Usage environment: Temperature: -40-85 ° C, Humidity: 5% -95%

Communication type: RS485

Communication protocol: Modbus RTU protocol

Communication distance: 300 meters

Baud rate: 1200-115200bps, default 9600 8N 1

Protection level: RS-485 interface with 600W lightning surge protection per line, ± 15KV ESD protection

4、 Sensor parameters