Introduction

In urban drainage systems, liquid level monitoring is the core link to ensure the safe operation of pipeline networks and prevent waterlogging disasters. The traditional manual inspection mode has problems such as data lag and limited coverage, while the widespread application of intelligent liquid level meters is driving the transformation of drainage management towards real-time and precision.HDL-100As a new generation of intelligent monitoring equipment, the drainage pipeline level gauge integrates radar and pressure dual sensors4GCore technologies such as wireless communication and low-power design have become the preferred solution for pipeline level monitoring in fields such as municipal engineering, petrochemicals, and food processing. This article will comprehensively analyze from four dimensions: technical principles, functional characteristics, application scenarios, and practical casesHDL-100The core advantage.

1、 Technical principle: innovative breakthrough in redundant design of dual sensors

HDL-100adopt“radar+pressure”Dual sensor redundancy design achieves high-precision measurement through algorithm fusion. This design not only improves the reliability of the equipment, but also adapts to the monitoring needs of complex pipeline environments.

1. Radar sensor:FMCWFrequency modulated continuous wave technology

HDL-100The radar sensor adoptsFMCWFrequency modulation continuous wave mode determines the liquid level height by transmitting high-frequency microwave signals and receiving reflected echoes, calculating the round-trip time of the signals. Its technological advantages are reflected in:

Strong anti-interference ability: Compared with traditional ultrasonic level gauges,FMCWThe radar is not interfered by steam, foam, dust, etc. Especially in the sewage pipe network, impurities such as sediment and floating objects will not affect the measurement accuracy. For example, the deployment of manholes in the old urban area of a provincial capital cityHDL-100Afterwards, the error rate of liquid level data during the flood season is lower than0.5%, much lower than ultrasonic equipment3%-5%.

High precision measurement: measurement range0.1-7Meter, accuracy up to±3Millimeters can capture millimeter level liquid level fluctuations. This characteristic is particularly important in the monitoring of petrochemical pipelines, such as in a certain refinery whereHDL-100Real time monitoring of tank liquid level avoids the risk of leakage caused by high liquid level.

Non contact installation: The radar beam emits vertically without contact with liquids, reducing the risk of equipment corrosion and extending its service life.

2. Pressure Sensor: Stable Support for Static Pressure Principle

The pressure sensor converts the liquid level height by measuring the static pressure of the liquid, and its core advantage lies in:

Suitable for enclosed environments: Suitable for underground deep wells, pressure pipelines and other enclosed scenarios, such as monitoring the drainage pipe network of an underground garage in a certain city. The pressure sensor accurately reflects the pressure changes inside the pipe network, providing data support for preventing backflow.

Low cost maintenance: Compared to radar sensors, pressure sensors have lower costs and do not require frequent calibration.HDL-100Through the fusion of dual sensor algorithms, when the radar signal is interfered with, it automatically switches to the pressure sensor to ensure data continuity.

3. Algorithm Fusion: Intelligent Error Correction and Data Optimization

HDL-100Built in intelligent algorithms can compare real-time data from radar and pressure sensors, automatically correcting errors. For example, in a main road project in a new city, the radar sensor generated false echoes due to wellbore reflection. The algorithm corrected the pressure sensor data and finally output accurate liquid level values, avoiding false alarms.

2、 Functional features: Intelligent design that adapts to the entire scene

HDL-100The functional design closely revolves around the actual needs of drainage network monitoring, reflecting the combination of intelligence and practicality in terms of installation convenience, data transmission stability, and energy consumption control.

1. Installation convenience: non-contact design and compact structure

Non contact installation: The radar sensor does not need to come into contact with liquids and can be directly fixed on the top of the manhole, avoiding the defect of traditional floating ball level gauges that need to invade liquids and reducing the risk of equipment corrosion.

Compact structure: The device is compact in size, lightweight, and can be adapted to small manhole spaces. For example, in the renovation of an old residential area,HDL-100Successfully deployed on the diameter80cmThe manhole did not affect the normal flow of the pipeline network.

Quick deployment: Supports multiple methods such as screw fixation and magnetic installation, allowing a single person to complete the installation, greatly reducing the project cycle.

2. Data transmission:4GWireless Communication and Low Power Design

4GFull network communication: supports China Mobile, China Unicom, and China Telecom4GThe network allows real-time data upload to the monitoring platform, with a wide coverage area, especially suitable for monitoring pipeline networks in remote areas. For example, in the monitoring of a reservoir pipeline network in a mountainous area,HDL-100pass4GStable signal transmission enables remote monitoring of data.

Low power design: Built in large capacity battery, power consumption≤30mWSupport solar energy/Complementary power supply from the mains. In the absence of mains power, the battery life can reach1Over the years, maintenance costs have been reduced.

Data encryption transmission: usingAESEncryption algorithm ensures data transmission security and prevents information leakage.

3. Environmental adaptability:IP68Protection and wide temperature work

IP68Protection level: The equipment can withstand short-term immersion and adapt to humid and muddy environments. During the rainstorm in flood season in a city,HDL-100Continuous work in flooded manholes72Hours, data is not affected.

Wide temperature working range: working temperature coverage-35℃to80℃Suitable for different climate regions. For example, in winter pipeline network monitoring in Northeast China, equipment is-30℃Normal operation in the environment without any malfunctions.

Anti electromagnetic interference: Adopting a shielding design to effectively resist electromagnetic interference around the pipeline network and ensure data stability.

4. Intelligent warning and remote management

Threshold warning: Users can customize the liquid level threshold. When the liquid level exceeds the safe range, the device will issue real-time alarms through SMS, email, platform push, and other methods. For example, during a rainstorm in a city,HDL-100Detected the liquid level in a certain section of the manhole30Within minutes from0.2Rising in meters0.5Mi, immediately triggered the warning, and the command center quickly deployed drainage pumps to avoid waterlogging.

Remote configuration: supports multiple configuration methods such as serial port, Bluetooth, and remote platform. Users can remotely adjust the collection interval（5-60Parameters such as minutes, warning threshold, etc. do not require on-site operation.

Historical data storage: built-inFLASHStorage space, can be saved1Historical data of over years provides a basis for pipeline network analysis.

3、 Application scenario: Multi domain coverage monitoring solution

HDL-100With its technological advantages, it is widely used in fields such as municipal drainage, petrochemicals, and food processing, becoming the core equipment for pipeline level monitoring.

1. Municipal drainage pipeline network: prevention and control of waterlogging and optimization of pipeline network

Emergency response during flood season: deployment on roads with frequent waterlogging in old urban areasHDL-100Real time monitoring of manhole liquid level. For example, a provincial capital city23After installing equipment in key manholes, the response time for flood season water accumulation disposal is from40Minutes reduced to15Minutes, average duration of water accumulation reduced60%.

Pipeline health assessment: By analyzing historical liquid level data, determine the period of pipeline blockage. Analysis of a certain city3After years of data, it was found that the liquid level in the old urban area's manholes increased rapidly before the flood season. Based on this, a plan was formulated“Quarterly Clearing Report”Plan, reduce20%Maintenance costs.

New pipeline network acceptance: pre installed during the road planning phaseHDL-100Link with flow sensors to verify design effectiveness. In a main road project in a new city, it was found that the drainage capacity of a certain section of the road did not meet the standard through liquid level reverse calculation of actual flow. Technical personnel immediately adjusted the slope of the pipeline network and the number of rainwater outlets to avoid the risk of water accumulation after the road was opened to traffic.

2. Petrochemical Pipeline: Safety Monitoring and Leakage Prevention

Tank Level Monitoring: Deployment in Refinery TanksHDL-100Real time monitoring of liquid level height to prevent overflow accidents. For example, a certain refinery avoided the risk of leakage caused by high liquid levels through equipment warning, saving hundreds of thousands of yuan in maintenance costs.

Pipeline pressure management: Combining pressure sensor data to monitor changes in liquid pressure inside the pipeline and prevent pipeline rupture. In a long-distance pipeline project,HDL-100By detecting pipeline corrosion points in advance through abnormal pressure fluctuations, accidents were avoided.

3. Food processing industry: hygiene monitoring and process control

Clean water source management: deployment in food factory water supply pipelinesHDL-100Monitor the liquid level of the water source to ensure stable production water supply. For example, a dairy factory monitored the liquid level of the water tower in real-time through equipment, avoiding production interruptions caused by water shortage.

Wastewater discharge monitoring: Monitor the liquid level of the sewage treatment station to ensure compliance with discharge standards. In a beverage factory project,HDL-100Through liquid level data, the wastewater treatment process has been optimized, reducing environmental risks.

4、 Actual case: Full process practice from deployment to optimization

Taking the renovation project of the pipeline network in the old urban area of a provincial capital city as an example,HDL-100The application has significantly improved the efficiency of pipeline management.

1. Project Background

The pipeline network in this area is aging and the pipe diameter is relatively small, making it prone to water accumulation during the flood season. The traditional manual inspection mode is difficult to meet the demand. The project party chooses to23Key manhole deploymentHDL-100Realize real-time monitoring of liquid level.

2. Deployment process

Equipment selection: based on the diameter of the manhole（80-120cm）Depth（3-5Rice selectionHDL-100Standard model.

Installation position: Fixed in the center position at the top of the manhole, ensuring that the radar beam is perpendicular to the liquid level and unobstructed.

Parameter configuration: Set the collection interval through the remote platform to10Minutes, the warning threshold is the pipe diameter70%(i.e. the liquid level exceeds the diameter of the pipeline)70%When triggered, an alarm is triggered.

3. operating effect

Flood season response:2025During the annual flood season, equipment triggers cumulative warnings12Number of times, average response time15Minutes, improved compared to traditional mode62.5%.

Data analysis: Through historical data, it was found that the liquid level rise rate of a certain section of the manhole accelerated before the flood season. Based on this, the project party adjusted the cleaning cycle and reduced it20%Maintenance costs.

Cost savings: After project implementation, the average annual reduction in waterlogging losses is about50Ten thousand yuan, equipment investment payback period is only2Year.

5、 Future outlook: The development trend of intelligence and integration

With the integration of the Internet of Things and big data technology,HDL-100Right towards“Integrated monitoring system”Direction evolution. In the future, devices will integrate functions such as flow sensors, video surveillance, and water quality analysis to build a pipeline health assessment system. For example, by linking liquid level and flow data, the real-time calculation of the pipeline network's overcurrent capacity can provide accurate basis for expansion and renovation; combineAIAlgorithms can predict the risk of pipeline failures and achieve“Proactive warning”rather than“Passive response”.

Conclusion

HDL-100The drainage pipeline level gauge, with its dual sensor redundant design4GCore technologies such as wireless communication and low power consumption, as well as intelligent functions for full field adaptation, have become the preferred choice for monitoring drainage networks. From municipal drainage to petrochemicals, from flood season emergency to pipeline optimization,HDL-100We are using real-time, accurate, and reliable data to promote the transformation of urban infrastructure towards intelligence, providing solid guarantees for sustainable development.