Fishway water environment monitoring and response system based on Internet of Things and implementation method

Abstract

The invention discloses a fishway water environment monitoring and response system based on the Internet of Things. The system comprises a main control module, a communication module, a sensor module, a driving module, a three-axis mobile platform, a power supply module, a pump set module, a field acousto-optic module and an Internet of Things cloud platform. The invention further discloses an implementation method of the fishway water environment monitoring and response system based on the Internet of Things, fishway engineering and the embedded Internet of Things technology are integrated, and the problem that in the field of fishway pool chamber water environment monitoring, the fishway pool chamber water environment is monitored in the fishway pool chamber is solved. The manual efficiency is low; the positioning of the pool chamber is difficult; the measurement is incomplete; the monitoring is discontinuous; according to the system, accurate positioning, real-time monitoring, remote control and timely response of the fishway pool chamber can be achieved, the vacancy of corresponding equipment is filled, important support is provided for stable operation of the fishway, and the system is an important subsystem for intelligent water conservancy development.

Description

Technical Field

[0001] The present invention belongs to the technical field of fishway engineering, and in particular relates to a fishway water environment monitoring and response system based on the Internet of Things and an implementation method thereof. Background Art

[0002] Hydropower generation has become one of the key development directions of clean energy in my country. However, ecological problems related to hydropower are becoming increasingly prominent. Among the many ecological problems caused by hydropower construction, the obstruction of fish migration is the most typical ecological problem. Migratory fish have the habit of periodically migrating in different water spaces to complete their life behaviors such as reproduction, foraging, and wintering. The changes in the ecological conditions of natural rivers caused by water conservancy projects are bound to have an adverse impact on the life and reproduction of fish upstream and downstream of the river. If the migration of fish is delayed or terminated, it may lead to the extinction of some species of fish, seriously endangering the diversity of biological species.

[0003] Fishway is the abbreviation of fish migration channel. Its function is to help migratory fish pass through obstacles during migration, such as weirs, locks, pumping stations, rapids, etc. It is an important measure to solve the problem of artificial hydraulic structures hindering fish migration and can play a role in protecting the ecology.

[0004] Fishway projects in my country have been actively promoted and implemented. However, many fishways have problems in their later operation and management, resulting in their suspension and abandonment. One of the reasons for this result is that in the practice of fishway projects, the fishways designed in the early stage often do not consider fishway monitoring. Although attention has been paid to the monitoring of fish passage effects, this type of monitoring often only focuses on the final effect of fish passage and monitors the upstream behavior of fish themselves, ignoring the impact of the water environment in this process, and people are in an extremely passive state in dealing with the results. At the same time, the reference significance of existing projects for the construction of different fishway projects will be greatly weakened. Therefore, it is of great significance to monitor the changes in the water environment that affect fish upstream.

[0005] Although there is some manual intervention in water environment monitoring at present, the recording and classification of a large amount of data is not only time-consuming and labor-intensive, but also has low efficiency in result processing and there are risks of water-related operations. Therefore, it is very necessary to use modern scientific and technological means to realize automated monitoring and response of the water environment in fishway ponds.

[0006] The relevant issues of existing fishway pond water environment monitoring are as follows:

[0007] 1. The flow velocity and water level of the fishway chamber are the basic indicators for measuring the flow structure of the chamber. The flow structure in the fishway chamber is often complex, and accurate positioning is required for the study of the flow structure of the chamber;

[0008] 2. The flow velocity measurement in fishway pools is currently mainly carried out by artificial outdoor single-point sampling, which is inefficient and difficult to accurately locate in the pool. Laboratories often use PIV technology to study the flow field in fishway pools, but this solution is expensive and not suitable for engineering environments. There is currently a lack of equipment that can automatically measure the flow velocity at a fixed point in the fishway pool and has a reasonable cost;

[0009] 3. The water level measurement of the fishway pool often relies on on-site scale measurement, and during the measurement process, only the side walls of the fishway pool are measured, making it difficult to obtain the water level differences at different locations in the pool. The monitoring and research of the fishway needs to consider the water level conditions at different locations in the pool. Currently, there is a lack of equipment for measuring the water level at different locations in the fishway pool.

[0010] 4. The water quality environment in the fishway pool also plays a key role in fish migration. Changes in water quality will directly affect the survival rate of migratory fish and the success rate of upstream migration. For the monitoring of water quality in the fishway pool, the current technology used is often on-site sampling, recording and analysis, which is inefficient and difficult to respond to sudden changes in water quality in a timely manner, which can easily cause serious consequences such as fish deaths. At present, there is a lack of equipment for real-time monitoring and timely response of water quality in fishway pools. Summary of the invention

[0011] The purpose of the present invention is to provide a fishway water environment monitoring and response system based on the Internet of Things to solve the problems raised in the above background technology. The fishway water environment monitoring and response system based on the Internet of Things provided by the present invention has the characteristics of accurate positioning of the fishway pool, real-time monitoring, remote control and timely response.

[0012] Another object of the present invention is to provide a method for implementing a fishway water environment monitoring and response system based on the Internet of Things.

[0013] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fishway water environment monitoring and response system based on the Internet of Things, comprising a main control module, a communication module, a sensor module, a drive module, a three-axis mobile platform, a power supply module, a pump group module, an on-site sound and light module and an Internet of Things cloud platform, wherein the main control module is used to connect the communication module, the sensor module, the drive module and the power supply module to realize information collection, transmission and response control; the communication module is used to realize data interaction between the main control module and the Internet of Things cloud platform; the sensor module is used to collect various data of the water environment in the fishway pool, including a first sensor module and a second sensor module; the drive module is used to control the displacement of the three-axis mobile platform; the three-axis mobile platform is used to drive the first sensor module to move to a set position; the power supply module is used to provide electrical energy to each module; the pump group module is used to execute the response instruction issued by the main control module; the on-site sound and light module is used to monitor the status of the equipment, and to give prompts and alarms, including a buzzer and several indicator lights; and also includes a platform bracket installed above the area to be tested in the fishway pool room, which is used to install the main control module, the communication module, the drive module, the power supply module and the three-axis mobile platform.

[0014] Further in the present invention, the first sensor module includes a flow rate sensor and a water level sensor, which are used for measuring the flow rate and the water level respectively.

[0015] Further in the present invention, the second sensor module includes an underwater sensor assembly, wherein the underwater sensor assembly includes a pH sensor, a soluble solid sensor, an underwater temperature sensor and a dissolved oxygen sensor, for collecting underwater environmental information.

[0016] Further in the present invention, the second sensor module also includes a diving box for installing a pH sensor, a soluble solid sensor, an underwater temperature sensor and a dissolved oxygen sensor.

[0017] In the present invention, further, an above-water temperature and humidity sensor is installed above the diving box.

[0018] Further in the present invention, the power supply module includes a first switch and a second switch, wherein the first switch is a manual switch for controlling the power-on of each module, and the second switch is an automatic switch for controlling the power-on of the drive module.

[0019] Furthermore, in the present invention, the pump group module includes a water replenishment pump, a water replacement pump and an oxygenation pump.

[0020] The present invention further includes a field display module for connecting to a display to display monitoring data and equipment status.

[0021] Furthermore, in the present invention, the Internet of Things cloud platform includes a status display module, a data value module and an instruction issuing module.

[0022] In the present invention, the method for implementing the fishway water environment monitoring and response system based on the Internet of Things comprises the following steps:

[0023] (1) Turn on the first switch, the power supply is processed by the voltage drop circuit, and then supplies power to the main control module and each module, and the system is initialized;

[0024] (ii) The main control module sends a command to the communication module to access the network, and further access the IoT cloud platform. After the IoT cloud platform is successfully accessed, the second switch is automatically turned on, and the three-axis mobile platform is powered on and initialized;

[0025] (III) The sensor module starts sampling, and the initial value of the collected data is transmitted to the main control module. The main control module sends the information to the IoT cloud platform. The main control module determines whether to receive instructions from the IoT cloud platform and decides which control mode to enter. If no instructions are received from the IoT cloud platform, the main control module enters the automatic mode by default, otherwise it enters the control command mode;

[0026] (IV) In the automatic mode, the three-axis mobile platform drives the flow velocity sensor of the first sensor module to move to the set height, and drives the first sensor module to move to each set test point for detection. The main control module uploads the data obtained by the first sensor module and the second sensor module to the Internet of Things cloud platform; the Internet of Things cloud platform compares the obtained data with the set threshold value and performs the following judgment:

[0027] (1) If the flow rate or water level is less than the set value, the water supply pump is turned on; if the flow rate and water level are both greater than the set threshold, the water supply pump is turned off;

[0028] (2) If any of the pH value, soluble solids, and underwater temperature is not within the set threshold range, the water exchange pump is turned on; if the pH value, soluble solids, and underwater temperature are all within the set threshold range, the water exchange pump is turned off;

[0029] (3) If the dissolved oxygen value is lower than the set threshold, the oxygen pump is turned on; if the dissolved oxygen value is higher than the set threshold, the oxygen pump is turned off;

[0030] (V) In the control mode, the staff sends control instructions through the terminal, and the control instructions are transmitted to the main control module via the Internet of Things cloud platform. The main control module controls the action of the three-axis mobile platform and the pump module according to the received instructions.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention integrates fishway engineering and embedded Internet of Things technology, solving many problems in the field of fishway pool water environment monitoring, such as low labor efficiency, difficult pool positioning, incomplete measurement, discontinuous monitoring, uncontrollable remote control, and difficulty in timely response;

[0033] 2. The present invention can realize accurate positioning, real-time monitoring, remote control and timely response of the fishway pool, filling the gap of corresponding equipment, providing important support for the stable operation of the fishway, and is an important subsystem for the development of smart water conservancy;

[0034] 3. The present invention drives the first sensor module to move through a three-axis mobile platform, thereby achieving accurate positioning of the point to be measured;

[0035] 4. The present invention uses an ultrasonic sensor to measure the change of water level without contact, which reduces the interference of the measuring action on the water body in the pool. The three-axis mobile platform drives the flow velocity sensor to rise and fall to realize the detection of flow velocities at different depths. When no detection is needed, the flow velocity sensor can be raised to reduce the interference with the water body in the pool.

[0036] 5. The diving box of the present invention is installed on the side wall of the fishway pool, so that the second sensor module is installed on the side wall of the fishway pool, reducing the interference of the second sensor module on the flow field of the pool;

[0037] 6. An above-water temperature and humidity sensor is installed above the diving box of the present invention to monitor the above-water temperature and humidity data information and realize the comprehensive collection of environmental information. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the present invention;

[0039] Figure 2 It is a schematic diagram of the installation structure of the present invention;

[0040] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0041] Figure 4 It is a side view structural schematic diagram of the present invention;

[0042] Figure 5 It is a schematic diagram of the upward structure of the present invention;

[0043] Figure 6 It is a schematic diagram of the top view of the structure of the present invention;

[0044] Figure 7 is a system block diagram of the present invention;

[0045] Figure 8 is a flow chart of the present invention;

[0046] In the figure: 1. main control module; 2. communication module; 3. sensor module; 31. first sensor module; 311. flow rate sensor; 312. water level sensor; 32. second sensor module; 321. underwater sensor assembly; 322. water temperature and humidity sensor; 4. diving box; 5. drive module; 6. three-axis mobile platform; 61. X-axis; 62. Y-axis; 63. Z-axis; 64. platform slider; 65. clamping mechanism; 66. through hole; 67. stepper motor; 7. platform bracket; 8. power supply module; 9. switch module; 91. first switch; 92. second switch; 10. pump group module; 101. pump group interface; 11. on-site display module; 111. on-site display interface; 12. on-site sound and light module; 13. Internet of Things cloud platform; 131. status display module; 132. data value module; 133. instruction release module; 14. wiring; 15. fishway pool room. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Example 1

[0049] See also Figure 1-8The present invention provides the following technical solutions: a fishway water environment monitoring and response system based on the Internet of Things, including a main control module 1, a communication module 2, a sensor module 3, a drive module 5, a three-axis mobile platform 6, a power supply module 8, a pump group module 10, a field sound and light module 12 and an Internet of Things cloud platform 13, wherein the Internet of Things cloud platform 13 adopts Alibaba Cloud IoT service, wherein the main control module 1 is used to connect the communication module 2, the sensor module 3, the drive module 5 and the power supply module 8 to realize information collection, transmission and response control, and the microcontroller of the main control module 1 adopts STM32F103C8T6 single The communication module 2 is used to realize the data interaction between the main control module 1 and the Internet of Things cloud platform 13. The communication module 2 is an ESP8266-01S module, which can communicate with USART, connect to the wireless network through AT commands, and connect to the cloud server with the MQTT protocol to upload the detected data to the Internet of Things cloud platform 13. The command can also be issued through the Internet of Things cloud platform 13 to pass it to the main control module 1, and the detection action or response action is performed according to the demand; the sensor module 3 is used to collect various data of the water environment in the fishway pool room 15, including the first sensor module 31 and the second sensor module 32; the driver Module 5 is used to control the displacement of the three-axis mobile platform 6. The driving module 5 is composed of three A4988 chips. The driving module 5 is connected to the main control module 1 and the three-axis mobile platform 6. The three groups of PWM pulses sent by the microcontroller of the main control module control the stepping distance of the three groups of stepper motors 67. The three groups of IO high and low levels control the moving direction of the stepper motors. The full stepping mode control is adopted. The above settings are used to realize three-axis positioning; the three-axis mobile platform 6 is used to drive the first sensor module 31 to move to the set position; the power supply module 8 is used to provide power for each module. The power supply module 8 is a 12V lithium battery; the three-axis mobile platform 6 The three-axis movement is controlled by three stepper motors 67 and driven by belts or screws; the pump group module 10 is used to execute the response instructions issued by the main control module 1, and the main control module 1 retains a pump group interface 101 for connecting the pump group module 10; the on-site sound and light module 12 is used to monitor the status of the equipment, provide prompts and alarms, and includes a buzzer and three indicator lights, which indicate the status of the equipment through the different states of the indicator lights; it also includes a platform bracket 7 installed above the test area of ​​the fishway chamber 15, which is used to install the main control module 1, the communication module 2, the drive module 5, the power supply module 8 and the three-axis mobile platform 6.

[0050] By adopting the above technical scheme, the present invention integrates fishway engineering and embedded Internet of Things technology, and solves many problems in the field of water environment monitoring of fishway pools, such as low labor efficiency, difficulty in pool positioning, incomplete measurement, discontinuous monitoring, uncontrollable remote control, and difficulty in timely response; the present invention can achieve accurate positioning of fishway pools, real-time monitoring, remote control and timely response, filling the gap of corresponding equipment, providing important support for the stable operation of fishways, and is an important subsystem for the development of smart water conservancy; the present invention drives the first sensor module to move through a three-axis mobile platform, thereby realizing precise positioning of the measured point.

[0051] Specifically, the first sensor module 31 includes a flow rate sensor 311 and a water level sensor 312, which are used to measure the flow rate and water level respectively. The water level sensor 312 is an ultrasonic sensor installed at the bottom of the platform slider 64 of the three-axis mobile platform 6, and the SR04 type is selected. The flow rate sensor 311 is installed on the Z-axis 63 of the three-axis mobile platform 6 through a clamping mechanism 65, and the platform slider 64 is provided with a through hole 66 for the flow rate sensor 311 to pass through.

[0052] By adopting the above technical solution, the ultrasonic sensor is used to realize contactless measurement of water level changes, which reduces the interference of the measurement action on the water body in the pool chamber. The flow velocity sensor is driven to rise and fall by the three-axis mobile platform to realize the detection of flow velocities at different depths. When no detection is needed, the flow velocity sensor can be raised to reduce the interference with the water body in the pool chamber.

[0053] Specifically, the second sensor module 32 includes an underwater sensor assembly 321, wherein the underwater sensor assembly 321 includes a pH sensor, a soluble solid sensor, an underwater temperature sensor and a dissolved oxygen sensor, wherein the underwater temperature sensor adopts a DS18B20 type, which is used to collect underwater pH, soluble solids, underwater temperature and dissolved oxygen value data information.

[0054] Specifically, the power supply module 8 includes a first switch 91 and a second switch 92 , wherein the first switch 91 is a manual switch for controlling the power-on of each module, and the second switch 92 is an automatic switch for controlling the power-on of the drive module 5 .

[0055] Specifically, the pump module 10 includes a water replenishment pump, a water replacement pump and an oxygenation pump.

[0056] By adopting the above technical solution, it serves as the response unit of the entire system.

[0057] Specifically, the Internet of Things cloud platform 13 includes a status display module 131, a data value module 132 and an instruction issuing module 133, wherein the status display module 131 includes a data status module and a pump group status module.

[0058] Example 2

[0059] The present embodiment is different from the first embodiment in that: specifically, the second sensor module 32 further includes a diving box 4 for installing a pH sensor, a soluble solid sensor, an underwater temperature sensor, and a dissolved oxygen sensor.

[0060] By adopting the above technical solution, the diving box 4 is installed on the side wall of the fishway chamber 15, so that the underwater sensor component 321 of the second sensor module 32 is installed on the side wall of the fishway chamber 15, reducing the interference of the underwater sensor component 321 on the flow field of the chamber.

[0061] Specifically, an above-water temperature and humidity sensor 322 is installed above the diving box 4, and the above-water temperature and humidity sensor is a DHT11 type.

[0062] By adopting the above technical solution, the temperature and humidity data information on the water can be monitored to achieve comprehensive collection of environmental information.

[0063] Example 3

[0064] The present embodiment is different from the embodiment 1 in that: specifically, it further comprises a field display module 11, a field display interface 111 is retained on the main control module 1, and the field display module 11 is connected to the field display interface 111 and a display to display monitoring data and equipment status.

[0065] By adopting the above technical solution, it is convenient for relevant personnel to check and maintain, and the on-site display information is synchronized with the content on the cloud platform.

[0066] Example 4

[0067] Furthermore, the method for implementing the fishway water environment monitoring and response system based on the Internet of Things described in the present invention comprises the following steps:

[0068] (i) Turn on the first switch 91, and the power supply is processed by the voltage drop circuit to supply power to the main control module 1 and each module, and the system is initialized;

[0069] (ii) the main control module 1 sends a command to the communication module 2 to access the network, and further access the Internet of Things cloud platform 13. After the Internet of Things cloud platform 13 is successfully accessed, the indicator light 1 of the on-site sound and light module 12 is on for 3 seconds and then goes out, the second switch 92 is automatically turned on, and the three-axis mobile platform 6 is powered on and initialized;

[0070] (III) The sensor module 3 starts sampling, and the initial value of the collected data is transmitted to the main control module 1. The main control module 1 sends the information to the IoT cloud platform 13. The main control module 1 determines whether to receive the instruction from the IoT cloud platform 13 and decides which control mode to enter. If the instruction from the IoT cloud platform 13 is not received, the automatic mode is entered by default, otherwise the control instruction mode is entered;

[0071] (IV) In the automatic mode, the three-axis mobile platform 6 drives the flow rate sensor 311 of the first sensor module 31 to move to the set height, and drives the first sensor module 31 to move to each set test point for detection. The main control module 1 uploads the data obtained by the first sensor module 31 and the second sensor module 32 to the Internet of Things cloud platform 13; the Internet of Things cloud platform 13 compares the obtained data with the set threshold value and performs the following judgment:

[0072] (1) The flow rate threshold is set to 0.2m / s, and the water level threshold is set to 0.02m. If the flow rate or water level is less than the set value, the water supply pump is turned on, the indicator light 1 of the on-site sound and light module 12 flashes, and the buzzer alarms; if the flow rate and the water level are both greater than the set threshold, the water supply pump is turned off, the indicator light 1 of the on-site sound and light module 12 goes out, and the buzzer is turned off;

[0073] (2) The pH threshold is set to 6.5-8.5, the soluble solid threshold is set to 50-500 mg / L, the underwater temperature threshold is set to 15-20°C, and the dissolved oxygen threshold is set to 6-8 mg / L. If any value of the pH, soluble solids, and underwater temperature is not within the set threshold range, the water change pump is turned on, the indicator light 2 of the on-site sound and light module 12 flashes, and the buzzer alarms; if the pH, soluble solids, and underwater temperature are all within the set threshold range, the water change pump is turned off, the indicator light 2 of the on-site sound and light module 12 goes out, and the buzzer is turned off;

[0074] (3) If the dissolved oxygen value is lower than the set threshold, the oxygen pump is turned on; if the dissolved oxygen value is higher than the set threshold, the indicator light 3 of the on-site sound and light module 12 flashes, the buzzer alarms, and the oxygen pump is turned off, the indicator light 3 of the on-site sound and light module 12 goes out, and the buzzer is turned off;

[0075] (V) In the control mode, the staff sends control instructions through the terminal, and the control instructions are transmitted to the main control module 1 via the Internet of Things cloud platform 13. The main control module 1 controls the actions of the three-axis mobile platform 6 and the pump group module 10 according to the received instructions.

[0076] In summary, the present invention integrates fishway engineering and embedded Internet of Things technology, and solves many problems in the field of fishway pool water environment monitoring, such as low labor efficiency, difficulty in pool positioning, incomplete measurement, discontinuous monitoring, uncontrollable remote control, and difficulty in timely response; the present invention can achieve accurate positioning of fishway pools, real-time monitoring, remote control and timely response, filling the gap of corresponding equipment, providing important support for the stable operation of fishways, and is an important subsystem for the development of smart water conservancy; the present invention drives the first sensor module to move by a three-axis mobile platform, thereby realizing accurate positioning of the point to be measured; the present invention can realize accurate positioning of the fishway pool, real-time monitoring, remote control and timely response, filling the gap of corresponding equipment, providing important support for the stable operation of fishways, and is an important subsystem for the development of smart water conservancy; the present invention drives the first sensor module to move by a three-axis mobile platform, thereby realizing accurate positioning of the point to be measured; The ultrasonic sensor is used to measure the change of water level contactlessly, which reduces the interference of the measuring action on the water body of the pool chamber. The flow velocity sensor is driven to rise and fall by the three-axis mobile platform to realize the detection of flow velocities at different depths. When no detection is needed, the flow velocity sensor can be raised to reduce the interference with the water body of the pool chamber. The diving box of the present invention is installed on the side wall of the fishway pool chamber, so that the second sensor module is installed on the side wall of the fishway pool chamber, which reduces the interference of the second sensor module on the flow field of the pool chamber. An above-water temperature and humidity sensor is installed above the diving box of the present invention to monitor the above-water temperature and humidity data information and realize the comprehensive collection of environmental information.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fishway water environment monitoring and response system based on the Internet of Things, characterized by: It includes main control module, communication module, sensor module, drive module, three-axis mobile platform, power supply module, pump module, on-site sound and light module and Internet of Things cloud platform, among which, The main control module is used to connect the communication module, sensor module, drive module and power supply module to realize information collection, transmission and response control; The communication module is used to realize data interaction between the main control module and the IoT cloud platform; The sensor module is used to collect various data of the indoor water environment of the fishway pool, including a first sensor module and a second sensor module; The driving module is used to control the displacement of the three-axis mobile platform; The three-axis mobile platform is used to drive the first sensor module to move to a set position; The power supply module is used to provide power to each module; The pump group module is used to execute the response instructions issued by the main control module; The on-site sound and light module is used to monitor the status of the equipment and provide prompts and alarms, including a buzzer and several indicator lights; It also includes a platform bracket installed above the area to be tested in the fishway chamber, which is used to install a main control module, a communication module, a drive module, a power supply module and a three-axis mobile platform.

2. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1 is characterized by: The first sensor module includes a flow rate sensor and a water level sensor, which are used for measuring flow rate and water level respectively.

3. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1 is characterized by: The second sensor module includes an underwater sensor assembly, wherein the underwater sensor assembly includes a pH sensor, a soluble solid sensor, an underwater temperature sensor and a dissolved oxygen sensor, which are used to collect underwater environmental information.

4. The fishway water environment monitoring and response system based on the Internet of Things according to claim 3 is characterized by: The second sensor module also includes a diving box for installing a pH sensor, a soluble solid sensor, an underwater temperature sensor, and a dissolved oxygen sensor.

5. The fishway water environment monitoring and response system based on the Internet of Things according to claim 4 is characterized by: An above-water temperature and humidity sensor is installed above the diving box.

6. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1 is characterized by: The power supply module includes a first switch and a second switch, wherein the first switch is a manual switch for controlling the power-on of each module, and the second switch is an automatic switch for controlling the power-on of the drive module.

7. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1 is characterized by: The pump group module includes a water replenishment pump, a water replacement pump and an oxygenation pump.

8. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1 is characterized by: It also includes a field display module for connecting a display to display monitoring data and equipment status.

9. The fishway water environment monitoring and response system based on the Internet of Things according to claim 1, characterized in that: The Internet of Things cloud platform includes a status display module, a data value module and an instruction issuing module.

10. A method for implementing a fishway water environment monitoring and response system based on the Internet of Things according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) Turn on the first switch, the power supply is processed by the voltage drop circuit, and then supplies power to the main control module and each module, and the system is initialized; (ii) The main control module sends a command to the communication module to access the network, and further access the IoT cloud platform. After the IoT cloud platform is successfully accessed, the second switch is automatically turned on, and the three-axis mobile platform is powered on and initialized; (III) The sensor module starts sampling, and the initial value of the collected data is transmitted to the main control module. The main control module sends the information to the IoT cloud platform. The main control module determines whether to receive instructions from the IoT cloud platform and decides which control mode to enter. If no instructions are received from the IoT cloud platform, the main control module enters the automatic mode by default, otherwise it enters the control command mode; (IV) In the automatic mode, the three-axis mobile platform drives the flow velocity sensor of the first sensor module to move to the set height, and drives the first sensor module to move to each set test point for detection. The main control module uploads the data obtained by the first sensor module and the second sensor module to the Internet of Things cloud platform; the Internet of Things cloud platform compares the obtained data with the set threshold and performs the following judgment: (1) If the flow rate or water level is less than the set value, the water supply pump is turned on; if the flow rate and water level are both greater than the set threshold, the water supply pump is turned off; (2) If any of the pH value, soluble solids, and underwater temperature is not within the set threshold range, the water exchange pump is turned on; if the pH value, soluble solids, and underwater temperature are all within the set threshold range, the water exchange pump is turned off; (3) If the dissolved oxygen value is lower than the set threshold, the oxygen pump is turned on; if the dissolved oxygen value is higher than the set threshold, the oxygen pump is turned off; (V) In the control mode, the staff sends control instructions through the terminal, and the control instructions are transmitted to the main control module via the Internet of Things cloud platform. The main control module controls the actions of the three-axis mobile platform and the pump group module according to the received instructions.

Images