Comprehensive solution for intelligent detection of water quality in aquaculture

I. The Importance and Challenges of Water Quality Control in Aquaculture

In the aquaculture environment, the dynamic changes of water quality parameters directly affect the growth rate, disease resistance, and survival rate of aquatic organisms. Traditional manual detection methods suffer from issues such as poor timeliness, high error rates, and difficulty in achieving synchronous multi-parameter monitoring, which can easily lead to delayed warnings of water quality deterioration and cause significant economic losses. Hengmei Electronic Technology's water quality detection system integrates electrode method, photoelectric colorimetry, and online sensing technology to construct a full-process solution covering "real-time monitoring - on-site rapid inspection - precise laboratory analysis", meeting the high-precision and high-efficiency water quality management needs of modern aquaculture.

II. Core water quality parameters and standards for aquaculture

Ⅲ.Design of Hengmei Water Quality Testing Technology Scheme

1.Online continuous monitoring system (aquaculture pond/circulating water system)

Core equipment: HM-SZ03 multi parameter online analyzer

Synchronized monitoring of dissolved oxygen pH、 Turbidity three key parameters, including automatic temperature compensation, protection level IP65, suitable for humid environments;

4~20mA signal output, supporting Modbus protocol, can be linked with aerators and feeders to achieve automatic control;

Watchdog anti crash design, power-off data protection>10 years, ensuring continuous operation reliability.

Extended configuration:

Ammonia nitrogen digital electrode (0~100mg/L, ± 1mg accuracy) and suspended solids sensor (0~2000mg/L) are connected to the host through RS485 to construct a customized monitoring network 1.

2.Portable on-site rapid detection system (inspection and emergency)

Recommended equipment: HM-SS60 handheld multi parameter detector or HM-SS11 photoelectric colorimeter

Detection capability:

HM-SS60: covering 20 indicators such as ammonia nitrogen, nitrite, hydrogen sulfide, phosphate, etc., supporting automatic wavelength switching between 340-800nm;

HM-SS11: Specially designed for aquaculture, with built-in pre made reagent detection process (such as ammonia nitrogen HJ 586-2010 standard), capable of completing single sample multi parameter analysis in 5 minutes.

Intelligent features:

Android operating system, 3.5-inch touch screen, wireless data transmission to cloud platform (such as automatic generation of warning reports for detecting residual chlorine and total alkalinity abnormalities);

The 5600mAh lithium battery supports 8 hours of field work, and the 700g lightweight design is easy to carry.

3.Laboratory Precision Analysis System (Difficult Problem Diagnosis)

Advanced equipment: HM-SS06 electrode method intelligent platform

Using fully digital electrodes to detect complex parameters such as dissolved oxygen (fluorescence method ± 2%), COD (UV254 absorption method ± 5%), chlorophyll, etc;

Equipped with Linux operating system, supporting SSH remote debugging, 8G-64GB storage space, meeting the needs of big data analysis;

Equipped with an automatic cleaner to prevent biological attachment, suitable for in-depth analysis of algae outbreaks or organic pollution.

Ⅳ.Implementation of the plan and maintenance support

Deployment strategy:

Install 1 set of HM-SZ03 online instrument every 5 acres of aquaculture ponds, and add ammonia nitrogen sensors in key areas (inlet and outlet, feeding area);

Two HM-SS60 handheld devices are provided for inspection purposes every 100 acres.

Data management:

Establish a privately deployed water quality database, synchronize on-site data through Type-C/WIFI, generate trend curves and over limit statistical reports.

Maintenance system:

Electrode calibration once a month (Hengmei provides standard solution kit);

Regularly wipe the photoelectric colorimetric dish (with accompanying eyeglass cloth and cleaning tools);

Three year warranty for the entire machine, with a sensor lifespan of ≥ 2 years (fluorescent dissolved oxygen probe does not require membrane replacement).

Ⅴ.Analysis of program advantages and benefits

Technical advantages:

Accuracy improvement: The dissolved oxygen error of the electrode method is ≤± 0.5% FS, and the repeatability of the photoelectric colorimetric ammonia nitrogen is less than 0.5%, far exceeding the manual detection accuracy by 16%;

Cost optimization: The single detection cost of prefabricated reagents is 0.12-0.16 yuan (traditional laboratory methods cost 3-5 yuan).

Management benefits:

Reduce the incidence of diseases by more than 30% through early warning of nitrite/hydrogen sulfide;

Energy saving of about 15%, dynamically adjust the operation of the aerator based on dissolved oxygen data.

Scalability:

Support customized parameter combinations (such as saltwater aquaculture salinity module) to meet the differentiated needs of fish, shrimp, and shellfish.

The Hengmei water quality detection system achieves full coverage of aquaculture scenarios through a three-level architecture of "online monitoring portable rapid testing laboratory analysis". Its core value lies in transforming discrete water quality data into a decision chain: real-time monitoring to prevent sudden risks, portable detection to improve response speed, laboratory analysis to ensure deep control. This plan can significantly reduce the comprehensive risks of aquaculture, improve production efficiency, and promote the transformation of aquaculture towards standardization and intelligence.

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