TW201947222A - Water quality monitoring system and method thereof - Google Patents

Abstract

A water quality monitoring system is provided, including several sensors, several actuators, and an embedded system. The sensors sense a plurality of environmental parameters and separately output a plurality of sensing signals including the environmental parameters. The actuators change the environmental parameters. The embedded system includes a storage module, a data collection module, a data analysis module, and a control module. The storage module stores a plurality of normal parameter ranges respectively corresponding to the environmental parameters. The data collection module is connected with the sensors for receiving the sensing signals. The data analysis module is connected with the storage module and the data collection module to determine whether the sensing signals are abnormal according to the normal parameter ranges and output a determination result. The control module is connected with the data analysis module to control the actuators or output a warning signal according to the determination result.

Description

   Water quality monitoring system and method   

The invention relates to a water quality monitoring system and a method thereof, and in particular to a water quality monitoring system and a method for determining whether an abnormality occurs in a sensor.

In the existing water quality monitoring system, when the system receives the data output from the sensor, the sensor value is usually directly used, and the analysis module only issues a warning to the user to indicate that the water quality environment is abnormal by calibrating the upper and lower limits of the value. . However, when the sensor fails or needs to be calibrated, the measured value may exceed the reasonable range. If the user does not process or calibrate the sensor in time, the wrong data will cause the system to make an incorrect control. Therefore, how to avoid environmental control according to the wrong value of the sensor is a problem that must be solved at present.

An embodiment of the present invention provides a water quality monitoring system, for example, applied to aquaculture monitoring, which includes a plurality of sensors, a plurality of actuators, and an embedded system. The sensor is used for sensing a plurality of environmental parameters and outputting a plurality of sensing signals corresponding to the environmental parameters, respectively. Actuators are used to change environmental parameters. The embedded system includes a storage module, a data collection module, a data analysis module, and a control module. The storage module is used to store a plurality of normal parameter ranges corresponding to the environmental parameters. The data collection module is connected to the sensor for receiving a sensing signal. The data analysis module is connected with the storage module and the data collection module, and is used to judge whether the sensing signal is abnormal according to the normal parameter range, and output a judgment result. The control module is connected to the data analysis module, and is used to control the actuator or output a warning signal according to the judgment result.

Another embodiment of the present invention further provides a water quality monitoring method, including the following steps: sensing a plurality of environmental parameters through a plurality of sensors, and outputting a plurality of sensing signals corresponding to the environmental parameters respectively; and collecting data through an embedded system The module receives the sensing signal; determines whether the sensing signal is abnormal according to the sensing signal and a plurality of normal parameter ranges corresponding to the environmental parameters through a data analysis module of an embedded system, and outputs a judgment result; and through the embedded system One control module controls at least the actuator or outputs a warning signal according to the judgment result. The normal parameter range is stored in a storage module of the embedded system.

100‧‧‧ Water Quality Monitoring System

101a ~ 101n‧‧‧Sensor

102a ~ 102n‧‧‧Actuator

110‧‧‧Embedded System

111‧‧‧Data Collection Module

112‧‧‧Data Analysis Module

113‧‧‧Storage Module

114‧‧‧Control Module

120‧‧‧ back-end system

121‧‧‧Data Analysis Server

122‧‧‧Display Module

S201 ~ S207‧‧‧step flow

FIG. 1 is a system architecture diagram of a water quality monitoring system according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a water quality monitoring method according to an embodiment of the present invention.

The other scope of the water quality monitoring system and method applicable to the present invention will be clear from the detailed description provided below. It must be understood that the following detailed description and specific embodiments, when presenting an exemplary embodiment of the water quality monitoring system and its method, are only for the purpose of description and are not intended to limit the scope of the invention.

FIG. 1 is a system architecture diagram for implementing a water quality monitoring system according to an embodiment of the present invention. The water quality monitoring system 100 includes a plurality of sensors 101a-101n, a plurality of actuators 102a-102n, an embedded system 110, and a back-end system 120. The sensors 101a to 101n may include any sensor that can obtain environmental parameters related to water quality monitoring or aquaculture. The environmental parameters may include, for example, temperature, pH value, redox potential, salinity, and the like. The actuators 102a-102n may include various devices that can be used to change the aforementioned environmental parameters, such as a water wheel, a heating rod, and a water change valve. It should be noted that the foregoing examples of the environmental parameters and the actuators are only used as examples of the present invention, and are not limited thereto.

The embedded system 110 may include a data collection module 111, a data analysis module 112, a storage module 113, and a control module 114. The data collection module 111 is connected to the sensors 101a ~ 101n, and is used for receiving a plurality of sensing signals corresponding to the aforementioned environmental parameters output by the sensors 101a ~ 101n. The data analysis module 112 is connected to the data collection module 111 and is configured to determine whether the sensing signal is abnormal according to the sensing signal and a plurality of normal parameter ranges stored in the storage module 113. Among them, each of the plurality of environmental parameters has a corresponding normal parameter range, and the normal parameter range can be obtained through an experimental method or analysis of actual data, and is stored in the storage module 113 in advance. The control module 114 is configured to determine whether to activate / deactivate any of the actuators 102a to 102n or output a warning signal corresponding to an abnormality of the sensors 101a to 101n according to the judgment result of the data analysis module 112. Among them, the data collection module 111, the data analysis module 112, and the control module 114 can be implemented by multiple microcontrollers, respectively, or can be integrated into a single processor, and the storage module 113 can be a hard disk, portable Non-volatile storage devices such as dishes.

The back-end system 120 may be implemented in an electronic device such as a desktop computer, a notebook computer, or a tablet computer, and includes at least a data analysis server 121 and a display module 122. The data analysis server 110 can be implemented in a variety of ways, such as dedicated hardware circuits or general hardware (for example, a single processor, a multiplexed processor with parallel processing capabilities, a graphics processor, or other processors with computing capabilities) , And when executing code or software, provide the functions described later. The back-end system 120 may further include another storage module (not shown), which is connected to the data analysis server 110 and the control module 112 to store the judgment results output by the control module 112 and corresponding environmental parameters. The display module 122 may be a display panel (such as a thin-film liquid crystal display panel, an organic light-emitting diode panel, or other panels with display capabilities, etc.), and is used to display at least a judgment result, a warning signal, environmental parameters, and obtained after analysis Environmental health, etc., to provide it for users to watch. In addition, the back-end system 120 may further include a communication interface (not shown). The communication interface may be a local area network (LAN) communication module, a wireless local area network communication module (WLAN), or Bluetooth (Bluetooth). ) A communication module, etc., for communicating with the embedded system 110 to obtain various environmental parameters and signals.

According to an embodiment of the present invention, when the data collection module 111 receives the sensing signals corresponding to the plurality of environmental parameters from the sensors 101a to 110n at predetermined intervals, the sensing signals are transmitted to the data analysis module 112. To judge. Then, the data analysis module 112 accesses the previously stored plural normal parameter ranges from the storage module 113 to determine whether the received environmental parameters are abnormal. When the data analysis module 112 determines that the environmental parameters are within the normal parameter range, it outputs a normal signal to the control module 114, so that the control module 114 controls the corresponding actuator 102a according to the normal signal and the value and type of the environmental parameter. 102n. For example, according to an example of the present invention, when the control module 114 receives the sensing signal corresponding to the temperature and the normal signal indicating that the sensing signal is normal, the control module 114 accesses the storage module 113 in advance. Store a temperature threshold to determine if the temperature must be adjusted. When the temperature is too low, the control module 114 outputs a control signal to start the heating rod to heat the environment, and when the temperature reaches the temperature threshold, the heating rod is turned off.

According to another example of the present invention, when the control module 114 receives a sensing signal corresponding to the pH value and a normal signal, the control module 114 accesses a previously stored pH threshold value from the storage module 113 to determine whether The pH must be adjusted. When the pH value is too high or too low, the control module 114 can adjust the pH value by opening the water exchange valve for water exchange.

According to another example of the present invention, when the control module 114 receives the sensing signal corresponding to the salinity and the normal signal, the control module 114 accesses a salinity threshold that has been stored in advance from the storage module 113 to determine Whether the salinity must be adjusted. Similarly, when the salinity is too high or too low, the control module 114 can adjust the salinity by opening the water exchange valve for water exchange.

According to another example of the present invention, when the control module 114 receives a sensing signal corresponding to a redox value and a normal signal, the control module 114 accesses a redox threshold that has been stored in advance from the storage module 113 to Determine whether the redox value must be adjusted. When the redox value is abnormally caused by the oxygen content being too low, the control module 114 starts the waterwheel to fetch water to increase the oxygen content in the water. Alternatively, when the abnormality of the redox value is caused by the change of the ion content, the control module 114 can perform water exchange by opening the water exchange valve.

Among them, after the foregoing environmental parameters corresponding to the normal signals are judged by the control module 114, the control module 114 will transmit them to the storage unit of the back-end system 120 for storage, and perform further analysis by the data analysis server 121. Analysis to determine the environmental health of the water quality monitoring environment.

However, when the data analysis module 112 judges that the environmental parameters received by the data collection module 111 are abnormal according to the normal parameter range stored in the storage module 113, it outputs an abnormal signal to the control module 114. When the control module 114 receives an abnormal signal, it indicates that the sensor corresponding to the environmental parameter is abnormal. The control module 114 will not judge the environmental parameter corresponding to the sensing signal, and it will not judge the actuator 102a. Any one of ~ 102n performs any control, and only outputs a warning signal to the data analysis server 121, so that the data analysis server 121 can display a reminder signal through the display module 122 or notify the user through other methods for use. Correct or replace the sensor corresponding to the environmental parameter. Among them, the control module 114 can further store the environmental parameters corresponding to the abnormal signal in the storage module of the back-end system 120 for analysis by the data analysis server 121 as the service life and calibration of the sensor. reference.

FIG. 2 is a flowchart illustrating a water quality monitoring method according to an embodiment of the present invention. In step S201, the plurality of sensors 101a to 101n sense a plurality of environmental parameters at predetermined intervals, and respectively output a plurality of sensing signals corresponding to the aforementioned environmental parameters. The environmental parameters may include temperature, pH, salinity, and redox. In step S202, the data collection module 111 of the embedded system 110 receives the sensing signals from the sensors 101a to 101n. In step S203, the data analysis module 112 of the embedded system 110 receives the sensing signals received from the data collection module 111 and accesses the normal parameter ranges corresponding to each of the environmental parameters that have been stored in advance from the storage module 113. To judge whether the sensing signal is abnormal according to the normal parameter range. When the data analysis module 112 determines that the environmental parameter corresponding to the sensing signal is outside the normal parameter range, it indicates that the sensor corresponding to the sensing signal is abnormal, the method proceeds to step S204, and the data analysis module 112 outputs an abnormal signal to The control module 114 enables the control module 114 to output a warning signal to the data analysis server 121 according to the abnormal signal, so as to notify the user that the sensor is abnormal through the display module 122 or by other methods. Next, in step S205, the control module 114 further transmits the environmental parameters corresponding to the abnormal signal to the data analysis server 121, and stores the abnormal data as a reference for the service life and calibration of the sensor.

Conversely, when the data analysis module 112 determines that the environmental parameters corresponding to the sensing signals are within the normal parameter range, it means that the sensors 101a to 101n have not abnormality, the method proceeds to step S206, and the data analysis module 112 outputs normal signals To the control module 114, the control module 114 controls the actuators 102a to 102n according to normal signals and environmental parameters. Next, in step S207, the control module 114 further transmits the environmental parameters to the data analysis server 121 and stores it as normal data for further analysis by the data analysis server 121 to judge the environmental health . Finally, returning to step S201, the sensors 101a to 101n continuously receive the sensing signals corresponding to different environmental parameters, and repeat the foregoing steps.

To sum up, according to the water quality monitoring system and the method thereof according to the present invention, before adjusting the actuator corresponding to the environmental parameter, it is judged in advance whether the environmental parameter is abnormal to avoid erroneous adjustment affecting the environmental health. In addition, by storing abnormal data corresponding to abnormal environmental parameters, the function of prompting the user to replace, clean or correct the sensor can also be realized, so as to avoid misjudgment of environmental health.

The features of many embodiments described above enable those skilled in the art to clearly understand the form of this specification. Those skilled in the art can understand that they can use the disclosure of the present invention as a basis to design or modify other processes and structures to accomplish the same purpose and / or achieve the same advantages as the above embodiments. Those with ordinary knowledge in the technical field can also understand that equivalent structures without departing from the spirit and scope of the present invention can be arbitrarily changed, substituted, and retouched without departing from the spirit and scope of the present invention.

Claims (13)

    A water quality monitoring system includes a plurality of sensors for sensing a plurality of environmental parameters and outputting a plurality of sensing signals corresponding to the environmental parameters, a plurality of actuators for changing the environmental parameters, and an embedded device. The system is connected with the sensor and the actuator, and includes: a storage module for storing a plurality of normal parameter ranges corresponding to the environmental parameters; a data collection module for connecting with the sensor, and To receive the sensing signal; a data analysis module connected to the storage module and the data collection module to determine whether the sensing signal is abnormal according to the normal parameter range, and output a judgment result; and a control The module is connected to the data analysis module, and is configured to control the actuator or output a warning signal according to the judgment result.         For example, the water quality monitoring system described in item 1 of the patent application scope further includes a back-end system, wherein the back-end system includes: a data analysis server connected to the control module to receive the sensing signal and the above-mentioned A warning signal, and storing the environmental parameters corresponding to the sensing signal as normal data or abnormal data according to the judgment result; and a display module for displaying the normal data, the abnormal data, and the warning signal.         The water quality monitoring system according to item 2 of the scope of patent application, wherein the data analysis server further analyzes an environmental health level based on the normal data and outputs a reminder signal based on the abnormal data.         The water quality monitoring system according to item 1 of the scope of patent application, wherein the above environmental parameters include temperature, pH value, redox potential, and / or salinity.         The water quality monitoring system according to item 4 of the scope of patent application, wherein the actuator includes a water cart, a heating rod, and / or a water exchange valve.         The water quality monitoring system according to item 5 of the scope of patent application, wherein the control module further controls the heating rod according to the temperature, the water change valve according to the pH value and / or the salinity, and / or according to the oxidation The reduction potential controls the waterwheel and / or the water change valve.         The water quality monitoring system described in item 1 of the scope of patent application can be applied to aquaculture monitoring.         A water quality monitoring method includes the following steps: sensing a plurality of environmental parameters through a plurality of sensors, and outputting a plurality of sensing signals corresponding to the environmental parameters; and receiving the sensing signals through a data collection module of an embedded system. ; Judging whether the sensing signal is abnormal according to the sensing signal and a plurality of normal parameter ranges corresponding to the environmental parameters through a data analysis module of the embedded system, and outputting a judgment result, wherein the normal parameter range is stored in In a storage module of the embedded system; and controlling at least the actuator or outputting a warning signal through a control module of the embedded system according to the determination result.         According to the water quality monitoring method described in item 8 of the scope of patent application, the method further includes the following steps: receiving the above-mentioned sensing signal and the above-mentioned warning signal through a data analysis server of a back-end system; Storing the environmental parameters corresponding to the sensing signals as normal data or abnormal data; and displaying the normal data, the abnormal data, and the warning signal through a display module.         The water quality monitoring method according to item 9 of the scope of patent application, wherein the data analysis server further analyzes an environmental health level based on the normal data and outputs a reminder signal based on the abnormal data.         The water quality monitoring method according to item 8 of the scope of the patent application, wherein the environmental parameters include temperature, pH value, redox potential, and / or salinity.         The water quality monitoring method according to item 11 of the scope of the patent application, wherein the actuator includes a water cart, a heating rod, and / or a water exchange valve.         The water quality monitoring method according to item 12 of the scope of patent application, further comprising the following steps: controlling the heating rod according to the temperature through the control module; controlling the water exchange valve according to the pH value and / or the salinity; and / Or control the water wheel and / or the water change valve according to the redox potential.