An automatically height-adjustable dissolved oxygen sensor

Abstract

The present invention discloses a dissolved oxygen sensor with automatically adjustable height, which comprises a camera module, a processing and analysis module, a lifting module, a dissolved oxygen sensor module and a power supply module; the camera module includes an automatically rotating camera; the lifting module includes a lifting cabin, and the lifting cabin is provided with a trachea connected to the air above water; a controllable bidirectional DC water pump and a water-filled telescopic water bag are arranged inside the lifting cabin, and the two are connected through a pipeline. The whole device has a simple structure, and the functions of each module do not interfere with each other. The small bidirectional water pump enables the air bag to pump water and exchange air, so as to realize the up and down movement of the sensor, and can automatically detect whether the concentration of dissolved oxygen in the water layer where fish schools gather is within the required range of dissolved oxygen according to the water layer where fish schools gather.

Description

Technical Field

[0001] The present invention relates to a dissolved oxygen monitoring device in water, and particularly to a dissolved oxygen sensor with automatic height adjustment. Background Art

[0002] Dissolved oxygen is one of the important parameters of water quality, which represents the self-purification ability of the water body. The content of dissolved oxygen in water is mainly affected by two aspects. One is the consumption of dissolved oxygen in water, and the main reasons for consumption are the degradation of organic matter and the respiration of organisms in water. The other is the increase in dissolved oxygen concentration, and the factors for increase are the photosynthesis in water and the dissolution of air oxygen. The concentration of dissolved oxygen in water varies with the depth of water. Especially at the bottom of aquaculture where there is a lot of organic matter deposition, there may even be a situation where the dissolved oxygen concentration on the water surface is saturated while the bottom is anaerobic.

[0003] Dissolved oxygen is essential for aquatic organisms. In aquaculture, when the dissolved oxygen concentration is lower than 4 mg / L, it will cause fish to suffocate and die. Different fish live in different water layers, and even the same kind of fish will gather in different water layers at different growth stages. Therefore, it is very necessary to detect the dissolved oxygen in different water layers at any time according to the water layer where the fish group lives. However, at present, there are few dissolved oxygen sensors that can intelligently detect the dissolved oxygen in different water layers. The water layer detected by the sensor mainly depends on the placement depth by the aquaculture farmer. If the placement position of the farmer is inappropriate, it may lead to the death of the fish group. Summary of the Invention

[0004] Aiming at the deficiencies of the existing dissolved oxygen sensors mentioned above, the purpose of the present invention is to provide a dissolved oxygen sensor with automatic height adjustment, which can automatically detect whether the concentration of dissolved oxygen in the water layer where the fish group gathers is within the required range of dissolved oxygen according to the water layer where the fish group gathers.

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

[0006] A dissolved oxygen sensor with automatic height adjustment mainly includes a photography module, a processing and analysis module, a lifting module, a dissolved oxygen sensor module, and a power supply module.

[0007] Preferably, in the dissolved oxygen sensor with automatic height adjustment, the photography module is composed of an automatically rotating camera, which can rotate 360°. By adjusting different angles, it takes pictures of different water layers. The rotating camera is started by a single-chip microcomputer to take pictures of different water layers, and the data of the photography is transmitted to the processing and analysis module, and then the rotating camera is turned off.

[0008] Preferably, for the automatic height-adjustable dissolved oxygen sensor, the processing and analysis module is composed of a CPU processor. The CPU processor is located on a circuit board and is connected to a rotating camera, a lifting module, and a dissolved oxygen sensor through a 485 bus. The CPU processor processes and analyzes the photo information transmitted by the camera module to determine the water layer where the fish school is located, and then enables the lifting module to raise or lower the sensor to the water layer where the fish school is located. When the device reaches the water layer where the fish school is located, the dissolved oxygen sensor module immediately activates the dissolved oxygen sensor and the temperature sensor to detect the temperature and dissolved oxygen concentration of the water layer where the fish school is located. After the temperature and dissolved oxygen data are transmitted to the CPU processor through the 485 bus for processing, they are transmitted to the shore display and alarm through an external data cable.

[0009] Preferably, for the automatic height-adjustable dissolved oxygen sensor, the lifting module is composed of a single-chip microcomputer and a lifting cabin. The lifting cabin has a trachea connected to the air above the water. A controllable bidirectional DC water pump and a water-filled telescopic water bladder are arranged inside the lifting cabin, and the two are connected by a pipeline. Its working principle is to control the bidirectional DC water pump to intake and discharge water through the control of the single-chip microcomputer. At the same time, the trachea inhales and exhales part of the gas in the air chamber according to the drainage volume, thereby controlling the lifting of the entire device. The lifting is in the vertical direction.

[0010] Preferably, for the automatic height-adjustable dissolved oxygen sensor, the dissolved oxygen sensor module is composed of a fluorescence dissolved oxygen sensor and a temperature sensor. When the device reaches the water layer where the fish school is located, the dissolved oxygen sensor module immediately activates the dissolved oxygen sensor and the temperature sensor to detect the temperature and dissolved oxygen concentration of the water layer where the fish school is located, and transmits the data to the processing and analysis module through the 485 bus.

[0011] Preferably, for the automatic height-adjustable dissolved oxygen sensor, the power supply module is powered by an external wire for the entire device, and there is a power switch at the external power supply to control the entire device.

[0012] Preferably, for the automatic height-adjustable dissolved oxygen sensor, the external power cord and the external data cable are wound around a roller on the shore, and the data cable is retracted and released as the roller rotates with the lifting of the lifting cabin.

[0013] Beneficial effects: The present invention provides a method for positioning fish schools in water through an underwater camera, determining the water layer where the fish schools are located, and controlling the lifting cabin to enable the entire device to rise and dive. When the device reaches the water layer where the fish schools are located, the dissolved oxygen sensor module is used to detect the dissolved oxygen and temperature in the water layer where the fish schools are located. For the first time, the entire device combines underwater photography, sensors, and a lifting cabin into one device, flexibly detecting the dissolved oxygen and temperature in the water layer where the fish schools are located, giving real-time alarms, and avoiding the death of fish schools caused by insufficient dissolved oxygen concentration, too high or too low temperature. The entire device of the present invention has a simple structure, and the functions of each module do not interfere with each other. The small two-way water pump enables the airbag to pump water and exchange air, thereby realizing the up and down movement of the sensor and detecting the dissolved oxygen and temperature in different water layers. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] In the figure, the reference numerals are: 1 - automatic rotating camera, 2 - dissolved oxygen sensor, 3 - water inlet of the connecting pipe, 4 - solenoid valve, 5 - controllable two-way DC water pump, 6 - water-filled telescopic water bag, 7 - lifting cabin, 8 - single-chip microcomputer, 9 - CPU processor, 10 - pulley, 11 - external wire, 12 - support rod, 13 - air pipe. Detailed Embodiments

[0016] The following will describe the detailed embodiments in combination with the drawings of the embodiments of the present invention to better understand the technical solutions of the present invention.

[0017] As Figure 1 shown, an automatically adjustable height dissolved oxygen sensor provided by the present invention mainly includes a photography module, a processing and analysis module, a lifting module, a dissolved oxygen sensor module, and a power module. The photography module is composed of an automatic rotating camera 1; the processing and analysis module mainly includes a circuit board, a CPU processor 9, a single-chip microcomputer 8, a 485 bus connecting each module, etc.; the dissolved oxygen sensor module is composed of a fluorescence dissolved oxygen sensor 2, and the dissolved oxygen sensor 2 can detect the dissolved oxygen and water temperature in water; the power module mainly includes a power switch and an external power cord.

[0018] The described automatic rotating camera 1 is located in the air chamber of the lifting cabin 7. The lifting cabin 7 can be composed of a rigid plastic outer shell. The camera performs automatic rotating photography of the water layer through a hole in the plastic outer shell or a part composed of transparent plastic or glass. Circuit modules such as the processing and analysis module and the data processing module of the sensor can all be arranged in the air chamber of the lifting cabin 7. The probe of the sensor can extend from the inside of the air chamber to the water area to be tested outside to ensure contact with the water. There is a data hole on the wall of the processing and analysis module. The power line and data line of the automatic rotating camera 1 are connected to the processing and analysis module through the data hole. The processing and analysis module is above the dissolved oxygen sensor module. The electrodes of the dissolved oxygen sensor extend out through the holes on the shell to contact the water layer. After detecting the dissolved oxygen and water temperature of the water layer where the fish school is located, the data is transmitted to the processing and analysis module through the 485 bus, and after being processed by the processing and analysis module, it is transmitted out through the data line to the external display. The lifting cabin 7 includes a water chamber, a water-filled telescopic water bag 6, an air chamber, an outer shell, a two-way DC water pump 5 and an air pipe 13. The two-way DC water pump 5 is connected to the water chamber and the external water layer through a water pipe to realize the pumping and suction of water by the device. After the size of the water bag 6 is determined, the air pressure in the air chamber is realized through the air pipe 13, so as to adjust the weight of the device and realize the floating or sinking of the whole device. The opening and closing of the water pump 5 are realized by connecting the water pump 5 and the single-chip microcomputer 8 of the processing and analysis module through the data hole on the wall of the processing and analysis module.

[0019] The working process of the whole device: Connect to the external power supply, turn on the external power switch to supply power to the whole device, and the whole device starts to work. The single-chip microcomputer 8 issues an instruction, and the automatic rotating camera 1 adjusts the angle to take pictures of the upper, middle, and lower water layers respectively, and transmits the data to the processing and analysis module through the 485 bus, and closes the camera module through the single-chip microcomputer 8. Through the comparison and analysis of the processor, the water layer where the fish school is located is determined. When it is determined that the fish school is in the upper water layer, the processor sends an instruction to the single-chip microcomputer 8. The single-chip microcomputer 8 starts the two-way DC water pump 5 and the solenoid valve 4 to pump water into the water chamber in the water-filled telescopic water bag 6. At the same time, due to the atmospheric pressure, the gas on the water surface enters the air chamber through the air pipe 13, making the whole device lighter and causing the whole device to slowly rise to the water layer where the fish school is located. While the whole device is slowly rising, the rollers on the shore are also slowly rotating, so that the external wire 11 and the data line are retracted. When the whole device reaches the water layer where the fish school is located, the solenoid valve 4 and the two-way DC water pump 5 are closed. The sensor module is turned on through the single-chip microcomputer 8, and the sensor module starts to work. The dissolved oxygen sensor electrode and the temperature electrode in contact with the water detect the dissolved oxygen concentration and the water layer temperature of the water layer where the fish school is located, transmit the detected data to the processing and analysis module, process the data through the CPU processor 9, and then transmit the processed data to the external display through the external data line, and turn off the sensor module.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific embodiments of the present invention or make equivalent substitutions for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. An automatically height-adjustable dissolved oxygen sensor, characterized in that, It includes a camera module, a processing and analysis module, a lifting module, a dissolved oxygen sensor module, and a power supply module; the camera module includes an automatically rotating camera; the lifting module includes a lifting cabin, and the lifting cabin is provided with a trachea connected to the air above the water; a controllable bidirectional DC pumping water pump and a water-filled telescopic water bladder are arranged inside the lifting cabin, and the two are connected through a pipeline.

2. The automatic height-adjustable dissolved oxygen sensor according to claim 1, wherein The automatically rotating camera takes pictures of the upper, middle, and lower water layers and transmits the data to the processing and analysis module.

3. An automatically height-adjustable dissolved oxygen sensor according to claim 1 or 2, characterized in that, The processing and analysis module includes a circuit board, a CPU processor, and a single-chip microcomputer on the circuit board.

4. An automatically height-adjustable dissolved oxygen sensor according to claim 3, characterized in that, After processing and analyzing the photos transmitted by the camera module, the CPU processor controls the lifting cabin through the single-chip microcomputer to control the lifting operation of the entire device, and processes and analyzes the data detected by the dissolved oxygen sensor and then transmits the processed data to the outside through an external data cable.

5. An automatically height-adjustable dissolved oxygen sensor according to claim 1, 2 or 4, characterized in that, The dissolved oxygen sensor module includes a fluorescence dissolved oxygen sensor, and a temperature sensor is arranged inside the fluorescence dissolved oxygen sensor, which can monitor the dissolved oxygen and temperature in the water in real time.

6. An automatically height-adjustable dissolved oxygen sensor according to claim 5, characterized in that, The power supply module supplies power to the entire device through an external power cord. The power switch of the entire device is located on the shore. At the same time, rollers are provided on the shore. The external power cord and the external data are both wound on the rollers, and the lengths of the power cord and the data cable are controlled by the sliding of the rollers.

7. An automatically height-adjustable dissolved oxygen sensor according to claim 1, characterized in that The automatically rotating camera and the processing and analysis module are both located in the air chamber of the lifting cabin.

8. An automatically height-adjustable dissolved oxygen sensor according to claim 7, characterized in that, The lifting cabin is composed of a rigid plastic shell, and the camera automatically rotates to take pictures of the water layer through a hole or a transparent part of a plastic shell.

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