A time-sharing sampling water quality detection system for aquaculture

Abstract

The present invention discloses a time-sharing sampling water quality detection system for aquaculture, comprising: a sampling pump control module, a water quality parameter acquisition module, a data upload module, and a host module, which are used to detect the water quality of each fish pond, obtain real-time data of the water quality, and prompt the aquaculture manager to handle it in time according to the real-time data. In the present invention, only one sampling device is used to complete the detection operation of multiple fish ponds, the overall equipment is highly efficient, and the detection value error caused is small, which helps to better grasp the water body condition, optimize the water quality management strategy, simplify the equipment structure, reduce the cost, and thus improve the aquaculture efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of water quality detection, and specifically relates to a time-sharing sampling water quality detection system for aquaculture. Background Art

[0002] The aquaculture time-sharing sampling and detection system mainly realizes the monitoring and early warning of the water quality of the aquaculture industry. The entire operation process adopts unattended and program-controlled automatic water quality monitoring. The system takes time-sharing sampling as the core, monitors and analyzes various water quality parameters, and transmits the collected data to the platform end to view real-time data and remotely manage the equipment. At the same time, it effectively alarms and intelligently processes the trend of water quality changes. It can also express the comprehensive index of water quality based on the correlation and combination between real-time water quality parameters, providing customers with a large amount of objective, detailed and effective data, which has practical significance for detecting water quality indicators and is widely used in aquaculture, sewage treatment, reservoirs, rivers, drinking water, swimming pools and other places.

[0003] In traditional aquaculture multi-parameter water quality detection systems, one detection system can only detect the water quality of one fish pond. If there are more than N fish ponds, N devices must be invested, which is very costly. Summary of the invention

[0004] The purpose of the present invention is to provide an aquaculture time-sharing sampling water quality detection system in order to break through the problem that one system can only detect one fish pond during sampling in the existing aquaculture sampling system.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An aquaculture time-sharing sampling water quality detection system, comprising:

[0007] The time-sharing sampling control module is used to control the collection of water samples from several fish ponds in turn according to a preset time period to obtain water quality data corresponding to the water samples. The module is provided with several control switches to control the opening and closing of the water inlet pumps of each fish pond respectively, thereby achieving the purpose of time-sharing sampling;

[0008] The water quality parameter collection module is used to collect and analyze the water quality parameters corresponding to each fish pond, wherein the water quality parameters include: temperature, dissolved oxygen, pH value, total dissolved solids, turbidity, and the corresponding water quality parameters are measured through the water samples of each fish pond to obtain the water quality data corresponding to each fish pond;

[0009] The data upload module is used to upload the corrected water quality parameter data to the cloud storage platform in real time to ensure the timeliness and accuracy of the collected data. The module analyzes and compares the corresponding data obtained by marking the corresponding collection time with the water quality data of each fish pond;

[0010] The data processing module is used to analyze and correct the collected water quality parameter data, and correspond different fish pond water quality data to different fish pond displays;

[0011] Take samples of water quality parameters at every hour in the same fish pond on a single day and set P t is the water quality parameter value collected at time point t, and the influencing factor P at each time point is calculated by the following formula st To correct the data:

[0012]

[0013] Where n is the number of sampling times on the day, P st Considered as an ideal benchmark value for subsequent corrections;

[0014] The water quality monitoring and evaluation module is used to evaluate and classify the water quality of each fish pond. By comparing it with historical water quality data and reference standards, the normal range of water quality parameters can be obtained, which is convenient for aquaculture managers to deal with it in a timely manner;

[0015] By impact factor P st , when calculating the values ​​of each fish pond at each time point, when obtaining a new target value through time-sharing sampling in each fish pond, the target value is compared with the corresponding set value, and the difference between the target value and the set value in each parameter is analyzed. When the difference is greater than the preset value, corresponding processing is performed;

[0016] The processor module sends the data to the host through the acquisition module, and the host uploads the data to the local detection center.

[0017] Among them, in the time-sharing sampling control module, by corresponding several time domains to several fish pond detection time periods, the collection time is set to Ti, where i is the number of the breeding fish pond,

[0018] Set a reference time T0, and then calculate for each fish pond according to its number and time period. Usually T0 = 0, that is, sampling starts from 00:00;

[0019] According to the formula T i =T0+(i*D)+C to calculate the time when each fish pond starts sampling and testing every day;

[0020] Where: D is the sampling time of each fish pond, the sampling time of all fish ponds is the same, C is an arbitrary random number, and 0<C<60, unit: min.

[0021] Among them, in the water quality parameter collection module,

[0022] The water quality samples in each fish pond are tested by a turbidity sensor to obtain the turbidity of each fish pond, that is, the turbidity of the corresponding depth area of ​​each fish pond;

[0023] The water temperature of each fish pond is detected by a temperature sensor in a monitoring device corresponding to each fish pond to obtain the water temperature corresponding to each fish pond, that is, the water temperature of the corresponding depth area of ​​each fish pond;

[0024] Similarly, the dissolved oxygen concentration corresponding to each fish pond is obtained by analyzing the water samples of each fish pond through the dissolved oxygen sensor, that is, the dissolved oxygen concentration of the corresponding depth area of ​​each fish pond;

[0025] And, testing the water samples of each fish pond by a pH sensor to obtain the pH value corresponding to each fish pond, that is, the pH value of the corresponding depth area of ​​each fish pond;

[0026] The water samples of each fish pond were measured by TDS (total dissolved solids) sensor to obtain the total dissolved solids corresponding to each fish pond, that is, the total dissolved solids concentration in the corresponding depth area of ​​each fish pond.

[0027] The data processing module eliminates the error caused by time-sharing sampling by setting the data weights at different time points, and obtains weighted water quality data based on each sampling period.

[0028] Wherein, the data uploading module further includes a data transmission encryption device for encrypting the water quality data during the uploading process.

[0029] The water quality monitoring and evaluation module includes an abnormal data identification device for marking abnormal data when water quality parameters are inconsistent with historical data or a set normal range, and sending a warning message to the manager.

[0030] Wherein, the water quality parameter acquisition module includes an automatic calibration device for regularly calibrating the sensitivity of each sensor.

[0031] The data processing module further includes a data smoothing processing unit, which detects and smoothes the mutation data by comparing the sampling data of adjacent time points to reduce noise interference.

[0032] Wherein, a manual sampling mode is set in the time-sharing sampling control module for manually controlling the sampling time and frequency in emergency or special circumstances.

[0033] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0034] 1. In the present invention, a time-sharing sampling control module is adopted to accurately control the sampling time period of each fish pond, effectively reduce the error in data collection, realize independent sampling of different fish ponds, and improve the representativeness and time accuracy of water quality data.

[0035] 2. In the present invention, a data processing module is used to smooth and correct the sampled data through a combination of a time-weighted algorithm and a moving and weighted average method, thereby eliminating the error caused by time-sharing sampling, ensuring that the data at each sampling time point is accurate and reliable, and improving the validity of the data.

[0036] 3. In the present invention, only one sampling device is used to complete the detection operation of all fish ponds. The overall equipment utilization efficiency is high and the loss of detection values ​​is small, which helps to better understand the water condition, optimize the water quality management strategy, simplify the equipment structure, reduce costs, and thus improve the breeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the present invention; DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] Embodiment 1, refer to Figure 1 , an aquaculture time-sharing sampling water quality detection system, comprising:

[0040] The time-sharing sampling control module is used to control the collection of water samples from several fish ponds in sequence according to a preset time period to obtain water quality data corresponding to the water samples. The module is provided with several control switches to control the opening and closing of the water inlet pumps of each fish pond respectively, thereby achieving the purpose of time-sharing sampling;

[0041] The water quality parameter collection module is used to collect and analyze the water quality parameters corresponding to each fish pond, wherein the water quality parameters include: temperature, dissolved oxygen, pH value, total dissolved solids, turbidity, and the corresponding water quality parameters are measured through the water samples of each fish pond to obtain the water quality data corresponding to each fish pond;

[0042] The data upload module is used to upload the corrected water quality parameter data to the cloud storage platform in real time to ensure the timeliness and accuracy of the collected data. The module obtains subsequent data analysis and comparison by marking the corresponding collection time of the water quality data of each fish pond;

[0043] The data processing module is used to analyze and correct the collected water quality parameter data. By executing a preset algorithm for the errors caused by time-sharing sampling, the water quality data is corrected to obtain the accuracy of each water quality parameter at the corresponding time point;

[0044] Take samples of water quality parameters at every hour in the same fish pond on a single day and set P t is the water quality parameter value collected at time point t, and the influencing factor P at each time point is calculated by the following formula st To correct the data:

[0045]

[0046] Where n is the number of sampling times on the day, P st Considered as an ideal benchmark value for subsequent corrections;

[0047] The water quality monitoring and evaluation module is used to evaluate and classify the water quality of each fish pond. By comparing it with historical water quality data and reference standards, the normal range of water quality parameters can be obtained, which is convenient for aquaculture managers to deal with it in a timely manner;

[0048] By impact factor P st , calculate the reference value of each numerical value at each time point in each fish pond, and when the new target value is obtained by time-sharing sampling in each fish pond, compare the target value with the corresponding reference value, analyze the difference between the target value and the reference value in each parameter, and perform corresponding processing when the difference is greater than the preset value.

[0049] In the time-sharing sampling control module, the acquisition time is set as T by corresponding several time domains to several fish pond detection time periods. i , where i is the number of the fish pond,

[0050] Set a reference time T0, and then calculate for each fish pond according to its number and time period. Usually T0 = 0, that is, sampling starts from 00:00;

[0051] According to the formula T i =T0+(i*D)+C to calculate the time when each fish pond starts sampling and testing every day;

[0052] Where: D is the sampling time of each fish pond, and the sampling time of all fish ponds is the same; C is any random number, and 0<C<30, unit: min;

[0053] In the water quality parameter collection module,

[0054] The water quality samples in each fish pond are tested by a turbidity sensor to obtain the turbidity of each fish pond, that is, the turbidity of the corresponding depth area of ​​each fish pond;

[0055] The water temperature of each fish pond is detected by a temperature sensor in a monitoring device corresponding to each fish pond to obtain the water temperature corresponding to each fish pond, that is, the water temperature of the corresponding depth area of ​​each fish pond;

[0056] Similarly, the dissolved oxygen concentration corresponding to each fish pond is obtained by analyzing the water samples of each fish pond through the dissolved oxygen sensor, that is, the dissolved oxygen concentration of the corresponding depth area of ​​each fish pond;

[0057] And, testing the water samples of each fish pond by a pH sensor to obtain the pH value corresponding to each fish pond, that is, the pH value of the corresponding depth area of ​​each fish pond;

[0058] The water samples of each fish pond are measured by a total dissolved solids sensor to obtain the total dissolved solids corresponding to each fish pond, that is, the total dissolved solids concentration in the corresponding depth area of ​​each fish pond.

[0059] The data processing module eliminates the errors caused by time-sharing sampling by setting data weights at different time points, and obtains weighted water quality data based on each sampling period; the data uploading module further includes a data transmission encryption device for encrypting the water quality data during the uploading process; the water quality monitoring and evaluation module includes an abnormal data identification device for marking abnormal data when the water quality parameters are inconsistent with historical data or the set normal range, and sending warning information to the manager; the water quality parameter acquisition module includes an automatic calibration device for regularly calibrating the sensitivity of each sensor; the data processing module further includes a data smoothing processing unit, which detects and smoothes the sudden change data by comparing the sampling data at adjacent time points to reduce noise interference; a manual sampling mode is set in the time-sharing sampling control module for manually controlling the sampling time and frequency in emergency or special circumstances.

[0060] Example 2, reference Figure 1 A time-sharing sampling water quality detection system for aquaculture includes a pipeline sensor control module, a routing module and an aggregation module. The routing module is composed of a sensor module. The sensor module includes a sensor module, a processor module and a power management module. The sensor module transmits the collected data information to the processor module. The processor module sends the data to the host through the collection module. The aggregation module uploads the data to the local detection center.

[0061] The system is mainly composed of pond network nodes and local monitoring centers. The pond pipeline network nodes include control sensor nodes, routing nodes and aggregation nodes. The routing nodes are controlled by sensor nodes, and the aggregation nodes are connected to the local detection center. The pond pipeline nodes and routing nodes are deployed in the detection area to form a network in a centralized manner, and the collected data are transmitted to the aggregation nodes. The aggregation nodes are responsible for receiving and processing information from all nodes in the network and transmitting the data to the local monitoring center. The detection center software analyzes, processes, stores, graphically displays and alarms the received data to achieve real-time online monitoring of water quality parameters.

[0062] In the power management part, the system supplies power to the mainboard through AC-DC conversion and current limiting circuits; after the secondary DC-DC conversion circuit and switching voltage regulator circuit, it provides the 3.3V voltage required by the microcontroller;

[0063] In order to detect the operating status of the pipeline node itself in real time, when other ponds are not in the detection state, the sensor node adopts a deep sleep design, that is, the working mode of the sensor module and the processor module is processed, and intermittent sampling, intermittent power supply, sleep, and dynamic triggered wake-up technology are adopted. The processor, communication, signal conditioning circuit and other unit modules adopt an overall sleep and wake-up mechanism; the sensor node uses intermittent power supply of the sensor to save energy.

[0064] When not necessary, the sensor module, communication module and processor module are set to off or sleep mode. Therefore, the normal working mode of the pipeline node is to periodically alternate between working and sleeping states, and it is in sleep mode most of the time. Set each pond node to collect and enter the receiving mode after the local data packet sends data, wait for the forwarding of other node data packets, and enter the sleep state after receiving the time synchronization information packet.

[0065] One instrument can measure the water quality of multiple fish ponds in turn, so it can be used for low-cost and high-quality water quality testing in aquaculture. Each fish pond can test water samples twice a day. Sampling industrial-grade electrodes can operate stably for a long time.

[0066] The control sensor module includes a water quality sensor and a signal conditioning circuit. The water quality sensor sends the collected signal to the processor module after being processed by the signal conditioning circuit. The water quality sensor includes multiple sensors. The power management module includes a current limiting circuit, a secondary DC-DC conversion circuit, and a battery. The device supplies power to the mainboard and sensor through the secondary DC-DC conversion circuit and the current limiting circuit.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A time-sharing sampling water quality detection system for aquaculture, characterized in that: include: The time-sharing sampling control module is used to control the collection of water samples from several fish ponds in sequence according to a preset time period to obtain water quality data corresponding to the water samples. The module is provided with several control switches to control the opening and closing of the water inlet pumps of each fish pond respectively, thereby achieving the purpose of time-sharing sampling; The water quality parameter collection module is used to collect and analyze the water quality parameters corresponding to each fish pond, wherein the water quality parameters include: temperature, dissolved oxygen, pH value, total dissolved solids, turbidity, and the corresponding water quality parameters are measured through the water samples of each fish pond to obtain the water quality data corresponding to each fish pond; The data upload module is used to upload the corrected water quality parameter data to the cloud storage platform in real time to ensure the timeliness and accuracy of the collected data. The module obtains subsequent data analysis and comparison by marking the corresponding collection time of the water quality data of each fish pond; The data processing module is used to analyze and correct the collected water quality parameter data, store the water quality data, and obtain the accuracy of each water quality parameter at the corresponding time point; Take samples of water quality parameters at every hour in the same fish pond on a single day and set P t is the water quality parameter value collected at time point t, and the influencing factor P at each time point is calculated by the following formula st To correct the data: Where n is the number of sampling times on the day, P st Considered as an ideal benchmark value for subsequent corrections; The water quality monitoring and evaluation module is used to evaluate and classify the water quality of each fish pond. By comparing it with historical water quality data and reference standards, the normal range of water quality parameters can be obtained, which is convenient for aquaculture managers to deal with it in a timely manner; By impact factor P st , calculate the reference value of each value at each time point in each fish pond, and when a new target value is obtained by time-sharing sampling in each fish pond, compare the target value with the corresponding reference value, analyze the difference between the target value and the reference value in each parameter, and perform corresponding processing when the difference is greater than the preset value; Among them, the module includes the pipeline sensor control module, routing module and aggregation module used. The routing module is composed of the sensor module. The sensor module includes the sensor module, the processor module and the power management module. The sensor module transmits the collected data information to the processor module. The processor module sends the data to the host through the acquisition module. The aggregation module uploads the data to the local detection center.

2. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: In the time-sharing sampling control module, the acquisition time is set as T by corresponding several time domains to several fish pond detection time periods. i , where i is the number of the fish pond, Set a reference time T0, and then calculate for each fish pond according to its number and time period. Usually T0 = 0, that is, sampling starts from 00:00; According to the formula T i =T0+(i*D)+C to calculate the time when each fish pond starts sampling and testing every day; Where: D is the sampling time of each fish pond, the sampling time of all fish ponds is the same, C is an arbitrary random number, and 0<C<30, unit: min.

3. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: In the water quality parameter acquisition module, the water quality samples in each fish pond are detected by a turbidity sensor to obtain the turbidity of each fish pond, that is, the turbidity of the corresponding depth area of ​​each fish pond; The water temperature of each fish pond is detected by a temperature sensor corresponding to each fish pond to obtain the water temperature corresponding to each fish pond, that is, the water temperature of the corresponding depth area of ​​each fish pond; Similarly, the dissolved oxygen concentration sensor is used to analyze the water samples of each fish pond to obtain the dissolved oxygen concentration corresponding to each fish pond, that is, the dissolved oxygen concentration in the corresponding depth area of ​​each fish pond; And, testing the water samples of each fish pond by a pH sensor to obtain the pH value corresponding to each fish pond, that is, the pH value of the corresponding depth area of ​​each fish pond; The water samples of each fish pond were measured by TDS sensor to obtain the total dissolved solids corresponding to each fish pond, that is, the total dissolved solids concentration in the corresponding depth area of ​​each fish pond.

4. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: The data processing module eliminates the error caused by time-sharing sampling by setting the data weights at different time points, and obtains weighted water quality data based on each sampling period.

5. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: The data uploading module further includes a data transmission encryption device for encrypting the water quality data during the uploading process.

6. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: The water quality monitoring and evaluation module includes an abnormal data identification device for marking abnormal data when water quality parameters are inconsistent with historical data or a set normal range, and sending a warning message to the manager.

7. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: The water quality parameter acquisition module includes an automatic calibration device for regularly calibrating the sensitivity of each sensor.

8. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: The data processing module further includes a data smoothing processing unit, which detects and smoothes the mutation data to reduce interference by comparing the sampled data at adjacent time points.

9. The aquaculture time-sharing sampling water quality detection system according to claim 1, characterized in that: A manual sampling mode is set in the time-sharing sampling control module for manually controlling the sampling time and frequency in emergency or special circumstances.

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