CN101839879B - Aquiculture detecting instrument and detection method - Google Patents

Abstract

The invention provides an aquaculture detector and a detection method. The detector includes: a sensor device for collecting a first dissolved oxygen signal and a temperature signal in water; a transmitter device including a data storage module for storing analog and digital signals. Conversion parameters and temperature compensation parameters and the zero point value of dissolved oxygen; and a first processing module for performing analog-to-digital conversion on the first dissolved oxygen signal and the temperature signal according to the analog-to-digital conversion parameters to obtain the first dissolved oxygen value and the temperature value ; and according to the temperature compensation parameter and the zero point value of dissolved oxygen, the first dissolved oxygen value is compensated to obtain the second dissolved oxygen value; the terminal device is used to export the second dissolved oxygen value and the temperature value to the digital display device; A digital display device for displaying a second dissolved oxygen value and a temperature value. Adopting the technical solution of the embodiment of the present invention can effectively improve the detection accuracy of the dissolved oxygen content, and can also effectively improve the intelligence degree of the detection.

Description

Aquaculture detector and detection method

technical field

The embodiments of the present invention relate to the technical field of aquaculture, in particular to an aquaculture detector and a detection method.

Background technique

Aquaculture is a very important occupation in coastal water areas. In the field of aquaculture, the detection of the water environment is a decisive factor affecting the growth and reproduction of aquatic products.

Among them, the dissolved oxygen in the water environment refers to the molecular oxygen dissolved in water or solution, which is an indispensable condition for the survival of aquatic animals and aquatic plants. In aquaculture technology, it is necessary to quickly and accurately detect the current water temperature and the dissolved oxygen content at the current water temperature to ensure the normal growth and reproduction of aquatic products. Dissolved oxygen in natural water is close to the saturation value, while in aquaculture ponds, aquatic products have high density and high oxygen consumption, so it is necessary to monitor the dissolved oxygen content at any time to ensure that aquatic products grow well in waters with suitable dissolved oxygen concentration. For example, when the dissolved oxygen concentration is less than 3mg/L, the growth and reproduction of aquatic products will be affected. Existing water environment detectors use simple sensor devices to detect water temperature signals and dissolved oxygen content signals, and send the temperature signals and dissolved oxygen content signals detected by the sensor devices to display devices for display through handheld terminals.

However, the detection accuracy of existing detectors for detecting water temperature and dissolved oxygen content is low, and the degree of intelligence is also low.

Contents of the invention

Embodiments of the present invention provide an aquaculture detector and a detection method, which have high detection accuracy and intelligence.

An embodiment of the present invention provides an aquaculture detector, including: sensor equipment, transmitter equipment, terminal equipment and digital display equipment;

The sensor device is used to collect the first dissolved oxygen signal and temperature signal in water;

The transmitter device includes a data storage module and a first processing module;

The data storage module is used to store the analog-to-digital conversion parameters, temperature compensation parameters and the zero point value of dissolved oxygen; the first processing module is used to process the first dissolved oxygen signal and the Analog-to-digital conversion of the temperature signal to obtain the first dissolved oxygen value and temperature value; and used to perform compensation processing on the first dissolved oxygen value according to the temperature compensation parameter and the zero point value of the dissolved oxygen to obtain the first dissolved oxygen value Two dissolved oxygen value;

The terminal device is configured to receive the second dissolved oxygen value and the temperature value processed by the transmitter device, and export the second dissolved oxygen value and the temperature value to the digital display equipment;

The digital display device is used to display the second dissolved oxygen value and the temperature value.

The embodiment of the present invention also provides a detection method for aquaculture waters, including:

The sensor device collects the first dissolved oxygen signal and temperature signal in the water;

The first processing module in the transmitter device uses the analog-to-digital conversion parameters stored in the data storage module in the transmitter device to perform analog-to-digital conversion on the first dissolved oxygen signal and the temperature signal to obtain the first A dissolved oxygen value and a temperature value; and performing compensation processing on the first dissolved oxygen value according to the temperature compensation parameter in the data storage module and the zero point value of dissolved oxygen to obtain the second dissolved oxygen value;

The terminal device receives the second dissolved oxygen value and the temperature value processed by the transmitter device, and exports the second dissolved oxygen value and the temperature value to the digital display device; for the The above digital display device displays.

The aquaculture detector and detection method provided by the embodiment of the present invention can perform temperature compensation on the detected dissolved oxygen value, effectively improving the detection accuracy of the dissolved oxygen content; and adopting the technical solution of the embodiment of the present invention, can effectively Improve the intelligence of the detector.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural view of an aquaculture detector provided in Embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of an aquaculture detector provided in Embodiment 2 of the present invention;

Fig. 3 is a flow chart of a detection method for aquaculture waters provided by Embodiment 3 of the present invention;

4 is a flowchart of a detection method for aquaculture waters provided by Embodiment 4 of the present invention;

FIG. 5 is a flow chart of a detection method for aquaculture waters provided by Embodiment 5 of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram of an aquaculture detector provided in Embodiment 1 of the present invention. As shown in FIG. 1 , the aquaculture detector of this embodiment includes a sensor device 10 , a transmitter device 11 , a terminal device 12 and a digital display device 13 .

Wherein, the sensor device 10 is used for collecting the first dissolved oxygen signal and temperature signal in water. The transmitter device 11 includes a data storage module 111 and a first processing module 112 . The data storage module 111 is used to store the zero point value of analog-to-digital conversion parameters, temperature compensation parameters and dissolved oxygen; the first processing module 112 is used to perform analog-to-digital conversion on the first dissolved oxygen signal and temperature signal according to the analog-to-digital conversion parameters, so as to obtaining a first dissolved oxygen value and a temperature value; and performing compensation processing on the first dissolved oxygen value according to the temperature compensation parameter and the zero point value of dissolved oxygen to obtain a second dissolved oxygen value. The terminal device 12 is used to receive the second dissolved oxygen value and temperature value processed by the transmitter device 11 , and export the second dissolved oxygen value and temperature value to the digital display device 13 . The digital display device 13 is used to display the second dissolved oxygen value and temperature value.

Specifically, the sensor device 10 of the aquaculture detector in this embodiment is used to collect the first dissolved oxygen signal in the water area where the user breeds aquatic products and the current temperature signal in the water area. The first processing module 112 of the transmitter device 11 is connected to the sensor device 10 to receive the first dissolved oxygen signal and temperature signal collected by the sensor device 10 . At the same time, the first processing module 112 is also connected to the data storage module 111, and the data storage module 111 is used for storing analog-to-digital conversion parameters, temperature compensation parameters and the zero point value of dissolved oxygen. The first processing module 112 performs analog-to-digital conversion on the received first dissolved oxygen signal and temperature signal according to the analog-to-digital conversion parameters stored in the data storage module 111, so as to obtain the first dissolved oxygen value and temperature value; and store according to the data storage module 111 Compensate the obtained first dissolved oxygen value with the temperature compensation parameter and the zero point value of dissolved oxygen to obtain the second dissolved oxygen value. The terminal device 12 is connected to the first processing module 112 of the transmitter device 11 , and receives the second dissolved oxygen value and temperature value processed by the first processing module 112 . The terminal device 12 is also connected to the digital display device 13, and exports the processed second dissolved oxygen value and temperature value to the digital display device 13, and the digital display device 13 displays the second dissolved oxygen value and temperature value for inspection by inspectors.

Specifically, the first processing module 112 of the transmitter device 11 may be a microprocessor, for example, a MSP430F149 single-chip microcomputer may be specifically used. The data storage module 111 can also be called Transducer Electronic Data Sheets (hereinafter referred to as: TEDS). Specifically, the digital display device 13 may be a liquid crystal display (Liquid Crystal Display; hereinafter referred to as LCD).

In this embodiment, the communication between the terminal device 12 and the transmitter device 11 is carried out using the RS485 protocol, and the RS485 protocol supports a communication distance of up to 1000 meters. Even when the terminal equipment 12 is required to be far away from the transmitter equipment 11 when the diagnostic instrument is applied in an aquaculture field, a longer wire can be selected without affecting the communication between the two.

The obtained first dissolved oxygen value is compensated according to the temperature compensation parameters stored in the data storage module 111 and the zero point value of dissolved oxygen, so as to obtain the second dissolved oxygen value. Preferably, the temperature compensation process can be performed in the following manner. Specifically, the temperature compensation parameters pre-stored in the data storage module 111 are a set of temperature compensation parameters, such as the first temperature compensation parameter α ₀ , the second temperature compensation parameter α ₁ , the second temperature compensation parameter The third temperature compensation parameter α ₂ , the fourth temperature compensation parameter α ₃ ; the above four temperature compensation parameters are all stored in the data storage module 111 in the transmitter device 11 .

Use the formula k _t =α ₀ +α ₁ t+α ₂ t ² +α ₃ t ³ to obtain a compensation slope parameter k _t ; where t indicates that the first processing module 112 performs analog-to-digital conversion according to the temperature signal collected by the sensor device obtained temperature value. In this embodiment, preferably, the first temperature compensation parameter α ₀ =0.02987, the second temperature compensation parameter α ₁ =-1.558×10-3, the third temperature compensation parameter α ₂ =3.832×10-5, the fourth temperature The compensation parameter α ₃ =-3.832×10-7.

Then according to the calculated compensation slope parameter k _t , use the following formula to calculate the second dissolved oxygen value:

DO _t =A ₀ +k _t U

Where DO _t is the second dissolved oxygen value, U the first dissolved oxygen value, and A ₀ is the zero point value of dissolved oxygen pre-stored in the data storage module 111. Wherein the zero point value of dissolved oxygen is based on the dissolved oxygen signal output by the dissolved oxygen probe in the anaerobic water, and adopts the analog-to-digital conversion parameters pre-stored in the data storage module 111 to perform analog-to-digital conversion on the dissolved oxygen signal. Zero point of dissolved oxygen value. Preferably, the anaerobic water can be obtained from saturated sodium sulfite solution. The zero-point value of the dissolved oxygen does not change with the change of temperature, but at different temperatures, the compensation slope parameter kt will change according to the temperature.

The aquaculture detector of this embodiment can perform temperature compensation on the detected dissolved oxygen value, effectively improving the detection accuracy of the dissolved oxygen content; The degree of intelligence.

On the basis of the above-mentioned embodiments, preferably, the terminal device 12 may include a second processing module and a storage module, wherein the second processing module receives the second dissolved oxygen value and temperature value; and export the second dissolved oxygen value and the temperature value to the digital display device 13 by the second processing module. The second processing module is mainly used to perform operations such as data storage, data browsing, data export, and data deletion on the data received by the terminal device 12 . The second processing module may specifically be a microprocessor, for example, a microprocessor AT91SAM9263(10) may be specifically used as the second processing module. The storage module can be used to store data, such as the second dissolved oxygen value and temperature value, and can also be used to store some pre-stored user breeding information and so on.

On the basis of the above embodiments, the terminal device 12 may also be connected with a keyboard, specifically, the keyboard is connected with the second processing module of the terminal device 12 . The keyboard is used to receive instructions input by the user, and the second processing module analyzes the instructions to perform corresponding operations, which can further increase the intelligence of the detection method.

Fig. 2 is a schematic structural diagram of an aquaculture detector provided in Embodiment 2 of the present invention. As shown in FIG. 2 , based on the above-mentioned embodiment shown in FIG. 1 , the sensor device 10 of this embodiment may include: a dissolved oxygen probe 101 , a temperature probe 102 and a conditioning circuit module 103 .

Wherein the dissolved oxygen probe 101 is used to collect the initial dissolved oxygen signal in water. The temperature probe 102 is used to collect the initial temperature signal in the water. The conditioning circuit module 103 is used to amplify and filter the initial dissolved oxygen signal and the initial temperature signal respectively, so as to obtain the first dissolved oxygen signal and the temperature signal.

The dissolved oxygen probe 101 in the sensor device 10 of the aquaculture detector in this embodiment collects the initial dissolved oxygen signal in the water area where the aquatic product is currently cultured. The temperature probe 102 in the sensor device 10 collects the initial temperature signal in the water area where the aquatic product is currently cultivated. The conditioning circuit module 103 in the sensor device 10 is connected to the dissolved oxygen probe 101 and the temperature probe 102 respectively, and is used to amplify and filter the initial dissolved oxygen signal collected by the dissolved oxygen probe 101 and the initial temperature signal collected by the temperature probe 102 to obtain First dissolved oxygen signal and temperature signal. The dissolved oxygen probe of this embodiment is measured based on the polarographic method. After starting the measurement, it takes a while to reach a stable value, and the required stabilization time varies according to the manufacturer. Therefore, acquisition can be performed after a period of time has been measured. It can also be set to display the stabilization progress of the dissolved oxygen probe on the digital display device 13 during the measurement process, so as to observe the stable value of dissolved oxygen. The transmitter device 11 , the terminal device 12 and the digital display device 13 provided in the first embodiment above are subsequently used to realize the entire detection process.

The aquaculture detector in this embodiment further increases the subsequent detection accuracy by performing amplification and filtering on the initial dissolved oxygen signal and temperature signal detected by the dissolved oxygen probe and the temperature probe. It can effectively improve the intelligent degree of detection.

Optionally, on the basis of the above embodiments, the aquaculture detector of the present invention also has a self-identification function. Specifically, the first processing module 112 in the transmitter device 11 in this embodiment is also used to compare the recorded usage time of the sensor device 10 with the working life time of the sensor device 10 pre-stored in the data storage module 111. comparison to determine whether the sensor device 10 is within the working life cycle.

The sensor device 10 in the aquaculture detector proposed by the present invention is a plug-and-play type, as long as the sensor device 10 is connected to the transmitter device 11 when the detector is powered on, it can be used normally. During the detection process, the first processing module 112 of the transmitter device 11 is also used to record the use time of the sensor device 10 , which is the accumulated use time from the first use of the sensor device 10 . Before each use, the first processing module 112 compares the currently recorded usage time with the working life time of the sensor device 10 pre-stored in the data storage module 111 of the transmitter device 11 . And the comparison result will be displayed on the digital display device 13 through the terminal device 12 for users to view. For example, when the current use time is greater than the working life time of the sensor device 10, it means that the sensor device 10 has exceeded the service life, and the detection result may not be accurate. The user can see the current status of the sensor device 10 through the digital display device 13, and then replace it in time Dissolved oxygen probe 101 of sensor device 10 . As for the temperature probe 102, the user can choose to replace or not to replace according to the actual situation.

Further, parameters of the sensor device 10 are also stored in the data storage module 111 of the transmitter device 11 , such as including the manufacturer, model, version number, serial number and the like of the sensor device 10 . The data storage module 111 also stores sensor device parameters such as the operating voltage and operating temperature range of the sensor device 10 . When the first processing module 112 of the transmitter device 11 does not detect the sensor device 10, the detection signal that the sensor device 10 is not detected is sent to the terminal device 12 by the first processing module 112 at this time, and the terminal device 12 sends the detection signal The detection signal is sent to the digital display device 13 for display by the digital display device 13 . In this way, the user can know that the sensor device 10 is not normally connected to the transmitter device 11 through the digital display device 13, and then the user detects the cause of the error and corrects it.

When the first processing module 112 of the transmitter device 11 recognizes the sensor device 10, it obtains the sensor device parameters corresponding to the sensor device 10 from the data storage module 111, and sends these parameters to the digital display device through the terminal device 12 13 for the digital display device 13 to display. By looking at the digital display device 13 , the user can know that the sensor device 10 is connected to the transmitter device 11 , and can see the current performance and type parameters of the sensor device 10 through the digital display device 13 .

The aquaculture detector of this embodiment, by adopting the above scheme, can automatically identify various performance parameters of the sensor equipment and judge whether the sensor equipment is in the working life cycle, realize the self-identification function of the aquaculture detector, and effectively improve the quality of the aquatic products. The intelligence level of breeding detection.

Optionally, on the basis of the above embodiments, the aquaculture detector of the present invention also has a self-calibration function. Specifically, the first processing module 112 in the transmitter device 11 in this embodiment is also used to divide the second dissolved oxygen value obtained after processing by the third dissolved oxygen value pre-stored in the data storage module 111, to obtain the status comparison value; and send the status comparison value to the digital display device 13 through the terminal device 12 for the digital display device 13 to display. The third dissolved oxygen value is obtained by the first processing module 112 performing analog-to-digital conversion on the received dissolved oxygen signal collected by placing the dissolved oxygen probe 101 in the air.

The first processing module 112 in the transmitter device 11 is also used to process the fourth dissolved oxygen signal collected by placing the dissolved oxygen probe 101 in a saturated sodium sulfite solution according to the analog-to-digital conversion parameters when the state comparison value is less than 1 Perform analog-to-digital conversion to obtain the fourth dissolved oxygen value; and update the zero point value of dissolved oxygen to the fourth dissolved oxygen value.

Specifically, after the sensor device 10 , especially the dissolved oxygen probe 101 has been used for a period of time, there may be inaccurate detection results. A third dissolved oxygen value may also be pre-stored in the data storage module 111 as a reference value, and the third dissolved oxygen value is collected by the first processing module 112 after the dissolved oxygen probe 101 is placed in the air. The obtained dissolved oxygen signal is obtained by analog-to-digital conversion. After the first processing module 112 in the transmitter device 11 processes and obtains the second dissolved oxygen value, divide the second dissolved oxygen value by the third dissolved oxygen value to obtain a state comparison value; and pass the comparison value through The terminal device 12 sends the data to the digital display device 13 for display by the digital display device 13 . In this way, the user can judge the current working state of the dissolved oxygen probe 101 in the sensor device 10 according to the state comparison value displayed by the current digital display device 13 .

When the state comparison value is equal to 1, the user is prompted that the dissolved oxygen probe 101 is working normally and does not need to be calibrated. When the state comparison value is less than 1, the user is prompted to calibrate the dissolved oxygen probe 101 . It is also possible for the user to choose whether to perform correction through the keyboard connected to the terminal device 12 . When correction is required, the user inputs a correction instruction through the keyboard and informs the terminal device 12 . Then, the dissolved oxygen probe 101 of the cleaned sensor device 10 is placed in a saturated sodium sulfite solution (ie, oxygen-free water) to collect the corresponding dissolved oxygen signal at this time, and the calibration starts. Calibrating the dissolved oxygen probe here specifically refers to calibrating the zero point value of dissolved oxygen stored in the data storage module 111 in the transmitter device 11 . After the dissolved oxygen probe 101 collects the initial dissolved oxygen signal in the saturated sodium sulfite solution, it is amplified and filtered by the conditioning circuit module 103, and then converted from analog to digital by the first processing module 112 in the transmitter device 11 to obtain a dissolved oxygen signal. Value, for the convenience of description, called the fourth dissolved oxygen value. The fourth dissolved oxygen value is also the zero point value of dissolved oxygen. The first processing module 112 further updates the zero point value of dissolved oxygen stored in the data storage module 111 to the fourth dissolved oxygen value, and the calibration is completed.

The aquaculture detector of this embodiment, by adopting the above scheme, can correct the zero point value of the dissolved oxygen probe when the state comparison value is less than 1, that is, the measurement is inaccurate, so as to effectively adjust the measurement accuracy of the dissolved oxygen content. And the detector of this embodiment has higher intelligence.

Optionally, on the basis of the above embodiments, the aquaculture detector of the present invention also has a self-diagnosis function. The terminal device 12 in the aquaculture detector of this embodiment is also used to obtain corresponding breeding help from the aquaculture knowledge base pre-stored in the terminal device 12 according to the second dissolved oxygen value, temperature value and pre-stored farming information information, and the breeding help information is sent to the digital display device 13 for the digital display device 13 to display.

Specifically, after the second processing module in the terminal device 12 in this embodiment receives the second dissolved oxygen value and temperature value processed by the first processing module 112 of the transmitter device 11, it combines the pre-stored breeding information , get some farming help information from the pre-stored aquaculture knowledge base. The pre-stored aquaculture information and the pre-stored aquaculture knowledge base may be stored in a storage module in the terminal device 12 or in an external storage device recognizable by the terminal device 12 . The aquaculture information here includes the user's aquaculture species, area and other aquaculture information. The aquaculture knowledge base may include some theoretical knowledge in the field of aquaculture and some experiential knowledge of some aquaculture experts. Some help-seeking problem descriptions of aquaculture users can also be pre-stored in the storage module. After the second processing module in the terminal device 12 receives the second dissolved oxygen value and temperature value, the second processing module uses the received second dissolved oxygen value and temperature value information, combined with the pre-stored breeding information, from the aquatic products. In the knowledge base, the corresponding theoretical knowledge about the aquatic products raised by the user and the empirical knowledge of some experts can be obtained, as well as the information about the help-seeking problems of the relevant aquaculture users. Finally, the obtained information is sent to the digital display device 13 for viewing by the user. The user can refer to the help-seeking problem information displayed on the digital display device 13, and combine the theoretical knowledge and the empirical knowledge of some experts to know the current status of aquatic products, and can also take some effective measures according to the empirical knowledge of experts to further improve aquatic products. breeding environment.

It should be noted that the above breeding information may not be pre-stored. After the second processing module of the terminal device 12 receives the second dissolved oxygen value and temperature value processed by the first processing module 112 of the transmitter device 11, the second processing module of the terminal device 12 triggers a Instructions to prompt the user to input breeding information through the digital display device 13. At this point, the user can input breeding information through the keyboard connected to the second processing module of the terminal device 12 . Then, the second processing module obtains the principle knowledge about the aquatic products cultivated by the user, the empirical knowledge of some experts and some help-seeking information according to the cultivation information input by the user and the received second dissolved cultivation and temperature values. Finally, the obtained information is sent to the digital display device 13 for viewing by the user.

The aquaculture detector in this embodiment can provide the user with farming help information according to the user's needs, further enhancing the intelligence of the aquaculture detector.

FIG. 3 is a flow chart of a detection method for aquaculture waters provided by Embodiment 3 of the present invention. As shown in Figure 3, the detection method of the aquaculture waters of the present embodiment may specifically include the following steps:

Step 100, the sensor device collects the first dissolved oxygen signal and temperature signal in water;

Specifically, the sensor device is used to detect the dissolved oxygen signal of the current aquatic product growth and reproduction water environment, that is, the first dissolved oxygen signal and the current temperature signal of the water environment, so as to effectively detect the current water environment.

Step 101, the first processing module in the transmitter device uses the analog-to-digital conversion parameters stored in the data storage module in the transmitter device to perform analog-to-digital conversion on the first dissolved oxygen signal and the temperature signal to obtain the first dissolved oxygen value and temperature value; and according to the temperature compensation parameter in the data storage module and the zero point value of dissolved oxygen, the first dissolved oxygen value is compensated to obtain the second dissolved oxygen value;

Specifically, the transmitter device includes a first processing module and a data storage module. Wherein the data storage module pre-stores analog-to-digital conversion parameters, temperature compensation parameters and the zero point value of dissolved oxygen. Here, the first processing module uses the analog-to-digital conversion parameters to perform analog-to-digital conversion on the first dissolved oxygen signal and temperature signal collected by the sensor device, so as to obtain the first dissolved oxygen value and temperature value. Then the first processing module performs temperature compensation processing on the first dissolved oxygen value by using the temperature compensation parameters pre-stored in the data storage module and the zero point value of dissolved oxygen to obtain the second dissolved oxygen value.

Preferably, the temperature compensation process is performed in the following manner. Specifically, the temperature compensation parameters pre-stored in the data storage module are a set of temperature compensation parameters, such as the first temperature compensation parameter α ₀ , the second temperature compensation parameter α ₁ , the third temperature Compensation parameter α ₂ , fourth temperature compensation parameter α ₃ ; the above four temperature compensation parameters are all stored in the data storage module in the transmitter device.

Using the formula k _t = α ₀ + α ₁ t + α ₂ t ² + α ₃ t ³ , a compensation slope parameter k _t is obtained; where t indicates that the first processing module performs analog-to-digital conversion according to the temperature signal collected by the sensor device obtained temperature value. In this embodiment, preferably, the first temperature compensation parameter α ₀ =0.02987, the second temperature compensation parameter α ₁ =-1.558×10-3, the third temperature compensation parameter α ₂ =3.832×10-5, the fourth temperature The compensation parameter α ₃ =-3.832×10-7.

Then according to the calculated compensation slope parameter k _t , use the following formula to calculate the second dissolved oxygen value:

DO _t =A ₀ +k _t U

Where DO _t is the second dissolved oxygen value, U the first dissolved oxygen value, and A ₀ is the zero point value of dissolved oxygen pre-stored in the data storage module. Among them, the zero point value of dissolved oxygen is the dissolved oxygen zero point value obtained after analog-to-digital conversion of the dissolved oxygen signal based on the dissolved oxygen signal output by the dissolved oxygen probe in anaerobic water using the analog-to-digital conversion parameters pre-stored in the data storage module . Preferably, the anaerobic water can be obtained from saturated sodium sulfite solution. The zero point value of the dissolved oxygen does not change with temperature, but at different temperatures, the compensation slope parameter k _t will change according to the temperature.

Step 102, the terminal device receives the second dissolved oxygen value and temperature value processed by the transmitter device, and exports the second dissolved oxygen value and temperature value to the digital display device for display by the digital display device.

Specifically, the terminal device receives the second dissolved oxygen value and temperature value obtained after processing by the first processing module in the transmitter device; and then exports the second dissolved oxygen value and temperature value to the digital display device for the digital display device show.

The realization mechanism of the water detection method for aquaculture in this embodiment is the same as the realization mechanism of the aquaculture detector in the first embodiment above. For details, please refer to the relevant description of the first embodiment above, and will not repeat them here.

The detection method for aquaculture waters in this embodiment can perform temperature compensation on the detected dissolved oxygen value, effectively improving the detection accuracy of dissolved oxygen content; and adopting the technical solution of the embodiment of the present invention can effectively improve the detection accuracy The degree of intelligence of the instrument.

Fig. 4 is a flow chart of a detection method for aquaculture waters according to Embodiment 4 of the present invention. As shown in FIG. 4, on the basis of the third embodiment above, step 100 may specifically include the following steps:

Step 1001, the dissolved oxygen probe and the temperature probe of the sensor device respectively collect the initial dissolved oxygen signal and the initial temperature signal in water;

Specifically, the sensor device may specifically include a dissolved oxygen probe and a temperature probe. The dissolved oxygen probe collects the initial dissolved oxygen signal in water. The temperature probe collects the initial temperature signal in the water. The dissolved oxygen probe of this embodiment is measured based on the polarographic method. After starting the measurement, it takes a while to reach a stable value, and the required stabilization time varies according to the manufacturer. Therefore, acquisition can be performed after a period of time has been measured. It can also be set to display the stabilization progress of the dissolved oxygen probe on the digital display device during the measurement process, so as to observe the stable value of dissolved oxygen.

Step 1002, the conditioning circuit module of the sensor device respectively performs amplification and filtering on the initial dissolved oxygen signal and the initial temperature signal to obtain the first dissolved oxygen signal and the temperature signal.

Specifically, the sensor device also includes a conditioning circuit module, which amplifies and filters the initial dissolved oxygen signal measured by the dissolved oxygen probe and the initial temperature signal measured by the temperature probe to amplify the signal and improve detection accuracy.

Subsequent steps 101 and 102 shown in FIG. 3 are adopted to realize effective detection of the dissolved oxygen value and temperature value in the current water environment.

The implementation mechanism of the detection method for aquaculture waters in this embodiment is the same as the implementation mechanism of the aquaculture detector shown in the above-mentioned embodiment 2. For details, please refer to the relevant description of the above-mentioned embodiment 2, which will not be repeated here.

In the detection method for aquaculture waters in this embodiment, the initial dissolved oxygen signal and temperature signal detected by the dissolved oxygen probe and the temperature probe are amplified and filtered to further increase the subsequent detection accuracy. It can effectively improve the intelligent degree of detection.

FIG. 5 is a flow chart of a detection method for aquaculture waters provided by Embodiment 5 of the present invention. The detection method for aquaculture waters in this embodiment is used to reflect the self-identification function of the detector in the embodiment of the present invention. As shown in Figure 5, this embodiment includes the following specific steps before step 100 of the embodiment shown in Figure 4 above:

Step 103, the first processing module in the transmitter device compares the recorded usage time of the sensor device with the working life time of the sensor device pre-stored in the data storage module to determine whether the sensor device is in the working life cycle Inside.

Specifically, the first processing module in the transmitter device also records the use time of the sensor device, which is the accumulated use time from the first use of the sensor device. Before each use, the first processing module compares the currently recorded use time with the working life time of the sensor device pre-stored in the data storage module of the transmitter device. And the comparison result will be displayed on the digital display device through the terminal device for viewing by the user. For example, when the current use time is greater than the working life time, it means that the sensor device has exceeded the service life, and the detection result may not be accurate. The user can see the current status of the sensor device through the digital display device, and then replace the dissolved oxygen of the sensor device in time. probe. The temperature probe can choose to be replaced or not to be replaced according to the specific situation.

Specifically, on the basis of the above embodiment shown in FIG. 3 , the above step 103 may be added before step 100 .

It should be noted that, on the basis of the above solution, the first processing module of the transmitter device is also used to identify the sensor device. The data storage module is used to store the parameters of the sensor device, for example, including the manufacturer, model, version number, serial number, etc. of the sensor device. The data storage module is also used to store sensor device parameters such as operating voltage and operating temperature range of the sensor device. When the sensor device is not detected by the first processing module of the transmitter device, the first processing module sends a detection signal that the sensor device is not detected to the terminal device, and the terminal device sends the detection signal to the digital display device , for display by a digital display device. In this way, the user can know that the sensor device is not properly connected to the transmitter device through the digital display device, and then the user detects the cause of the error and corrects it.

When the first processing module of the transmitter device recognizes the sensor device, it obtains the parameters of the sensor device corresponding to the sensor device from the data storage module, and sends these parameters to the digital display device through the terminal device for digital display. Display device display. By viewing the digital display device, the user can know that the sensor device is connected to the transmitter device, and can see the performance and type parameters of the current sensor device through the digital display device.

The detection method for aquaculture waters in this embodiment can realize the self-identification function of the aquaculture detector, and effectively improve the intelligence of aquaculture detection.

On the basis of the above embodiments, a preferred solution is: on the basis of the above embodiments shown in Figure 1, Figure 2 or Figure 3, the following steps may also be included:

(a), the first processing module in the transmitter device also divides the second dissolved oxygen value and the third dissolved oxygen value pre-stored in the data storage module to obtain a state comparison value; and compare the state by the terminal device The value is sent to the digital display device for display by the digital display device; the third dissolved oxygen value is obtained by the first processing module performing analog-to-digital conversion on the received dissolved oxygen signal collected by placing the dissolved oxygen probe in the air .

This step (a) is preferably located after step 101 shown in the above embodiment, and is performed simultaneously with step 102 . Specifically, it may also be located after step 102 shown in the first embodiment above. After the sensor equipment, especially the dissolved oxygen probe, has been used for a period of time, the detection results may be inaccurate. In this scheme, a third dissolved oxygen value is also pre-stored in the data storage module as a reference value, and the third dissolved oxygen value is collected by the first processing module by placing the dissolved oxygen probe in the air. The dissolved oxygen signal is obtained by analog-to-digital conversion. After the first processing module in the transmitter device processes and obtains the second dissolved oxygen value, divide the second dissolved oxygen value by the third dissolved oxygen value to obtain a state comparison value; and pass the comparison value through the terminal device Send it to the digital display device for display on the digital display device. In this way, the user can judge the working state of the dissolved oxygen probe in the current sensor device according to the state comparison value displayed by the current digital display device. When the status comparison value is equal to 1, the user is prompted that the dissolved oxygen probe is working normally and does not need to be calibrated. When the state comparison value is less than 1, the user is prompted to calibrate the dissolved oxygen probe. Of course, the user may decide not to calibrate according to the second dissolved oxygen value currently measured. When correction is required, it may specifically include the following step (b).

(b) When the state comparison value is less than 1, the first processing module performs analog-to-digital conversion on the fourth dissolved oxygen signal collected by placing the dissolved oxygen probe in a saturated sodium sulfite solution according to the analog-to-digital conversion parameter to obtain the fourth Dissolved oxygen value; and update the zero point value of dissolved oxygen to the fourth dissolved oxygen value.

Specifically, to calibrate the dissolved oxygen probe is to calibrate the zero point value of dissolved oxygen. First, wash the dissolved oxygen probe with clean water, and then place the cleaned dissolved oxygen probe in saturated sodium sulfite solution (that is, anaerobic water) to collect the corresponding dissolved oxygen signal at this time, and the first processing module according to the analog and digital Converting parameters, performing analog-to-digital conversion on the dissolved oxygen signal collected at this time, to obtain the fourth dissolved oxygen value. And the zero point value of dissolved oxygen prestored in the data storage module is updated to the fourth dissolved oxygen value.

By using the method of the above embodiment, when the state comparison value is less than 1, that is, the measurement is inaccurate, the zero point value of the dissolved oxygen probe can be corrected, so as to effectively adjust the measurement accuracy of the dissolved oxygen content.

On the basis of the above embodiment, another preferred solution is that after step 102 of the above embodiment, the following step (c) may also be included:

Step (c), the terminal device obtains the corresponding breeding help information from the aquaculture knowledge base pre-stored in the terminal device according to the second dissolved oxygen value, temperature value and pre-stored breeding information, and sends the breeding help information to the digital A display device for display by a digital display device.

Specifically, after the second processing module of the terminal device receives the second dissolved oxygen value and temperature value processed by the first processing module of the transmitter device, combined with the pre-stored aquaculture information, from the pre-stored aquaculture knowledge base Get some farming help information. Optionally, the breeding information and the aquatic knowledge base can be stored in a storage module in the terminal device, or can be stored in a storage module external to the terminal device. The aquaculture information here includes the user's aquaculture species, area and other aquaculture information. The aquaculture knowledge base may include some theoretical knowledge in the field of aquaculture and some experiential knowledge of some aquaculture experts. Some help-seeking problem descriptions of aquaculture users can also be pre-stored in the storage module. After the second processing module receives the second dissolved oxygen value and temperature value, the second processing module obtains corresponding The principle knowledge about the aquatic products farmed by the user and the empirical knowledge of some experts can also obtain information about the help-seeking problems of the relevant aquaculture users. Finally, the acquired information is sent to the digital display device for the user to view. Users can refer to the help-seeking problem information displayed on the digital display device, and combine the theoretical knowledge and some experts' empirical knowledge to know the current status of aquatic products, and can also take some effective measures based on the expert's empirical knowledge to further improve aquaculture environment of.

Optionally, after the second processing module of the terminal device receives the second dissolved oxygen value and temperature value processed by the first processing module of the transmitter device, an instruction may also be triggered, that is, the second processing module sends a digital The display device sends an instruction to require the digital display device to display to the user and require the user to input breeding information. At this point, the user can input breeding information through the keyboard connected to the second processing module of the terminal device. Then the second processing module obtains the principle knowledge about the aquatic products raised by the user and the empirical knowledge of some experts. Finally, the acquired information is sent to the digital display device for the user to view.

The detection method for aquaculture waters in this embodiment can provide users with breeding assistance information, further enhancing the intelligence of aquaculture detection.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A kind of aquaculture detector, is characterized in that, comprises: sensor equipment, transmitter equipment, terminal equipment and digital display equipment; The sensor device is used to collect the first dissolved oxygen signal and temperature signal in water; The transmitter device includes a data storage module and a first processing module; The data storage module is used to store the analog-to-digital conversion parameters, temperature compensation parameters and the zero point value of dissolved oxygen; the first processing module is used to process the first dissolved oxygen signal and the Analog-to-digital conversion of the temperature signal to obtain the first dissolved oxygen value and temperature value; and used to perform compensation processing on the first dissolved oxygen value according to the temperature compensation parameter and the zero point value of the dissolved oxygen to obtain the first dissolved oxygen value Two dissolved oxygen value; The terminal device is configured to receive the second dissolved oxygen value and the temperature value processed by the transmitter device, and export the second dissolved oxygen value and the temperature value to the digital display equipment; The digital display device is used to display the second dissolved oxygen value and the temperature value. 2. The aquaculture detector according to claim 1, wherein the sensor device comprises: Dissolved oxygen probe, used to collect the initial dissolved oxygen signal in water; a temperature probe for collecting an initial temperature signal in the water; and The conditioning circuit module is configured to perform amplification and filtering on the initial dissolved oxygen signal and the initial temperature signal to obtain the first dissolved oxygen signal and the temperature signal. 3. The aquaculture detector according to claim 1, wherein the first processing module is also used to combine the recorded usage time of the sensor device with the pre-stored data in the data storage module. The working life time of the sensor device is compared to determine whether the sensor device is within the working life cycle. 4. The aquaculture detector according to any one of claims 1-3, characterized in that, The first processing module is also used to divide the second dissolved oxygen value by the third dissolved oxygen value pre-stored in the data storage module to obtain a state comparison value; The state comparison value is sent to the digital display device for display by the digital display device; wherein the third dissolved oxygen value is received by the first processing module, and the dissolved oxygen probe is placed in the air Obtained by analog-to-digital conversion of the dissolved oxygen signal collected in The first processing module is also used to process the fourth dissolved oxygen signal collected by placing the dissolved oxygen probe in a saturated sodium sulfite solution according to the analog-to-digital conversion parameter when the state comparison value is less than 1 performing analog-to-digital conversion to obtain a fourth dissolved oxygen value; and updating the zero point value of dissolved oxygen to the fourth dissolved oxygen value. 5. The aquaculture detector according to any one of claims 1-3, characterized in that, The terminal device is further configured to obtain corresponding breeding help information from the aquaculture knowledge base pre-stored in the terminal device according to the second dissolved oxygen value, the temperature value and the pre-stored breeding information, and Sending the breeding assistance information to the digital display device for display by the digital display device. 6. A detection method for aquaculture waters, comprising: The sensor device collects the first dissolved oxygen signal and temperature signal in the water; The first processing module in the transmitter device uses the analog-to-digital conversion parameters stored in the data storage module in the transmitter device to perform analog-to-digital conversion on the first dissolved oxygen signal and the temperature signal to obtain the first A dissolved oxygen value and a temperature value; and performing compensation processing on the first dissolved oxygen value according to the temperature compensation parameter in the data storage module and the zero point value of dissolved oxygen to obtain the second dissolved oxygen value; The terminal device receives the second dissolved oxygen value and the temperature value processed by the transmitter device, and exports the second dissolved oxygen value and the temperature value to the digital display device; for the The above digital display device displays. 7. the detection method of aquaculture waters according to claim 6, is characterized in that, the first dissolved oxygen signal and temperature signal in the collection water of described sensor equipment, comprise: The dissolved oxygen probe and the temperature probe of the sensor equipment collect the initial dissolved oxygen signal and the initial temperature signal in water respectively; The conditioning circuit module of the sensor device respectively performs amplification and filtering on the initial dissolved oxygen signal and the initial temperature signal to obtain the first dissolved oxygen signal and the temperature signal. 8. the detection method of aquaculture waters according to claim 6, is characterized in that, before the first dissolved oxygen signal and temperature signal in the collection water of described sensor equipment, also comprise: The first processing module in the transmitter device compares the recorded usage time of the sensor device with the working life time of the sensor device pre-stored in the data storage module to determine the Whether the sensor device is in the working life cycle. 9. according to the detection method of the arbitrary described aquaculture waters of claim 6-8, it is characterized in that, also comprising: The first processing module in the transmitter device also divides the second dissolved oxygen value by a third dissolved oxygen value pre-stored in the data storage module to obtain the state comparison value; and The state comparison value is sent to the digital display device through the terminal device for display by the digital display device; the third dissolved oxygen value is received by the first processing module, and the The dissolved oxygen signal collected by placing the dissolved oxygen probe in the air is obtained through analog-to-digital conversion; It further includes: when the state comparison value is less than 1, the first processing module, according to the analog-to-digital conversion parameter, performs the fourth dissolved oxygen signal collected by placing the dissolved oxygen probe in a saturated sodium sulfite solution performing analog-to-digital conversion to obtain the fourth dissolved oxygen value; and updating the zero point value of the dissolved oxygen to the fourth dissolved oxygen value. 10. according to the detection method of the arbitrary described aquaculture waters of claim 6-8, it is characterized in that, also comprising: According to the second dissolved oxygen value, the temperature value and the pre-stored aquaculture information, the terminal device obtains corresponding aquaculture help information from the aquaculture knowledge base pre-stored in the terminal device, and stores the aquaculture The help information is sent to the digital display device for display by the digital display device. the

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