CN115145219A - Cloud intelligent water quality monitoring system - Google Patents
Cloud intelligent water quality monitoring system Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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- G05B2219/13004—Programming the plc
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/70—Arrangements in the main station, i.e. central controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04Q2209/00—Arrangements in telecontrol or telemetry systems
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Abstract
The application relates to a high in clouds intelligence quality of water monitored control system. The application high in clouds intelligence quality of water monitored control system include: the system comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a human-computer interaction module; the detection input module carries out analog quantity transmission on the detected analog signals, and after analog-to-digital conversion is carried out on the analog signals, the analog signals are transmitted to the programmable controller in a digital signal mode; the liquid level input module transmits the monitored analog signal of the liquid level to the programmable controller in a digital liquid level value mode; the programmable controller sends a control signal to the output control module to control the on and off of the medicine injection action; the programmable controller standardizes the digitized signal, compares the standardized detection signal with a set range, and sends out the comparison result. The application high in clouds intelligence quality of water monitored control system have easy adaptation and improve the advantage of commonality.
Description
Technical Field
The application relates to the field of water treatment, in particular to a cloud intelligent water quality monitoring system.
Background
In water treatment and water quality monitoring, dosing is an essential link. In the prior art, a chemical adding device is a complete set of equipment integrating chemical adding, stirring, liquid conveying and automatic control, is widely applied to raw water, boiler feed water and ground gathering and conveying dehydration treatment systems of oil fields of power plants, and is also widely applied to various chemical adding systems and wastewater treatment systems of petrochemical industry. Such as adding coagulant, acid-base solution, phosphate, ammonia liquor, lime water, oxidant, reducing agent, water quality stabilizer (corrosion inhibitor), scale inhibitor, liquid insecticide and the like.
When adding medicine, detect the quality of water condition earlier, then carry out analysis and judgement, through automatic control's calculation and control, charge device prepares according to required medicament concentration in the agitator tank, throws into the solution tank after the agitator stirring, with the metering pump (dosing pump), carries the solution of preparing to throwing the medicine point or appointed system. And finally, conveying the prepared liquid medicine to an upper water pipe or a water return pipe.
In the whole water treatment, water quality monitoring, control and automatic dosing are carried out, negative feedback control is carried out, and in the whole process, due to the fact that the water quality monitoring, control and automatic dosing belong to different suppliers and different manufacturers, the problem of adaptation exists, and the conversion process of adaptation is carried out. For example, if the Siemens PLC is used for control, siemens communication protocols and standards are adopted to be adapted to the Siemens PLC.
In the era of internet and internet of things, data intercommunication and smooth adaptation of multiple products are very important, and especially when adaptation of different products is carried out, how to quickly interconnect and intercommunicate becomes a key for adapting and using. In the prior art, due to the problem of unsmooth adaptation, different products in the internet of things are difficult to match and need to be developed, so that the whole matching is difficult, the development of the internet of things is hindered, and particularly the development of the internet of things in the subdivision field of water quality detection monitoring is hindered. In a word, the water quality monitoring in the prior art can not be well interconnected, so that the existing water quality monitoring can not be well interacted and matched for use, the whole system is not mature enough, and even cloud interconnection can not be realized.
Disclosure of Invention
Based on this, the utility model aims at providing a high in clouds intelligence water quality monitoring system, it has convenient realization water treatment's self-adaptation and throws and throw to make the advantage that high in clouds interconnection and intercommunication realized more easily.
One aspect of the application provides a cloud intelligent water quality monitoring system, which comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a human-computer interaction module;
the detection input module carries out analog quantity transmission on the detected analog signals, and the analog signals are transmitted to the programmable controller in a digital signal mode after being subjected to analog-to-digital conversion by the digital sensor input module at the programmable controller; the liquid level input module carries out analog-to-digital conversion on the monitored analog signal of the liquid level through the digital sensor input module and then transmits the analog signal of the monitored liquid level to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the medicine injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the human-computer interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-digit dial switch and a wireless communication module; the cloud communication processor is respectively electrically connected with the four-digit dial switch and the wireless communication module, and controls the four-digit dial switch to switch a wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance-type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen;
the programmable controller carries out standardized processing on the digitized signals transmitted by the digitized sensor input module to obtain standardized detection signals, compares the standardized detection signals with a set range, and respectively sends comparison results to the cloud communication processor and the interaction processor.
The application high in clouds intelligence quality of water monitored control system, carry out standardized processing through the data to nonstandard sensor to data after will standardizing and setting value carry out the comparison, whether accord with the standard with it, the infusion pump operation that controls to correspond or shut down finally realizes the automatic intelligent control of quality of water. In addition, the intelligent interaction and interconnection effect is realized, the smoothness of human-computer interaction is realized through the human-computer interaction module, the setting of parameters and numerical value ranges is further convenient to realize, the convenience is improved, and the humanization is met; the convenience of remote information acquisition of the user is easily realized through the cloud communication module, the user can remotely acquire the on-site water quality condition at the mobile terminal, and the method is real-time and convenient, so that the easy realization of interconnection and intercommunication is further improved. The method and the device firstly overcome the problem of adaptation of non-standard products, and greatly simplify the adaptation process; then, the convenience problem of interconnection and intercommunication of water quality monitoring is also solved, so that the water quality monitoring is real-time and convenient, and a user can complete water quality management at a mobile terminal; and finally, the problem of difficulty of human-computer interaction is also solved, so that the human-computer interaction of on-site water quality monitoring management becomes easy.
Further, the normalizing the digitized signal to obtain a normalized detection signal includes:
establishing a rectangular coordinate system by taking the input value as a horizontal coordinate and the standard value as a vertical coordinate;
obtaining a starting point coordinate according to a starting point input value and a starting value of the standard value in the setting process; then obtaining a terminal coordinate according to a terminal input value and a termination value of the standard value during setting;
connecting the start point coordinate and the end point coordinate on the same straight line to obtain a standardized oblique line;
and corresponding the acquired value of the digital signal on an abscissa, and finding a longitudinal coordinate value of a corresponding standardized oblique line, thereby obtaining a numerical value of the standardized detection signal.
Further, the comparing the normalized detection signal with the set range includes:
setting the detection range of each detected signal, if the initial value of the detection range of the detected signal is 0, comparing the value of the standardized detection signal with the end value of the set detection range, and if the value of the standardized detection signal is less than the end value, outputting qualified signal; if the value of the standardized detection signal is larger than the end point value, the output is higher;
if the initial value of the detection range of the detected signal is greater than 0, comparing the value of the standardized detection signal with the initial value of the set detection range, and if the comparison result shows that the value of the standardized detection signal is less than the initial value, outputting the value to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the end value of the set detection range;
if the comparison result is that the value of the standardized detection signal is smaller than the end point value, the output is qualified; if the comparison result is that the value of the normalized detection signal is greater than the endpoint value, the output is high.
Further, after the comparing results are respectively sent to the cloud communication processor and the interaction processor, the method further includes:
establishing an incidence relation between a detection input module and the output control module;
and the programmable controller sends corresponding control signals to the corresponding liquid injection pumps to control the start or the stop of the corresponding liquid injection pumps.
Further, the sending the comparison result to the cloud communication processor and the interaction processor respectively includes: if the comparison result is qualified, sending the obtained value of the standardized detection signal to an interaction processor, and displaying the value on a corresponding module of the display screen after the interaction processor processes the value; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word on a user terminal;
if the comparison result is higher or lower, the obtained numerical value of the standardized detection signal is sent to the interactive processor, the numerical value is displayed on a display screen in a manner that a dial pointer points at corresponding scales, and the higher or lower numerical value is displayed on the display screen; and sends "higher" or "lower" to the cloud communication processor.
Further, the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant-pressure residual oxygen sensor and an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitator liquid level meter;
the output control module comprises a Y0 optical coupling isolation output, a Y1 optical coupling isolation output, a Y2 optical coupling isolation output and a Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump;
the establishment of the incidence relation between the detection input module and the output control module comprises the establishment of the incidence relation between a residual chlorine sensor and a Y0 optical coupling isolation output, the establishment of the incidence relation between a pH sensor and a Y1 optical coupling isolation output and a Y2 optical coupling isolation output, the establishment of the incidence relation between a turbidity sensor and a Y3 optical coupling isolation output, and the establishment of the incidence relation between a dissolved oxygen sensor, a constant-pressure residual oxygen sensor, an ammonia nitrogen sensor and an oxygenation pump.
Further, the programmable controller sends out a corresponding control signal to the corresponding infusion pump, including:
performing analog-to-digital conversion on an analog signal detected by the residual chlorine sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a residual chlorine measurement value, and comparing the residual chlorine measurement value with a residual chlorine set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output to control the chlorine liquid metering pump to be in a stop state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in a running state;
performing analog-to-digital conversion on an analog signal detected by the pH sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a pH value, and comparing the pH value with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a shutdown state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
performing analog-to-digital conversion on an analog signal detected by a turbidity sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a turbidity value, comparing the turbidity value with a turbidity set value, and if the comparison result is qualified, sending a control signal to Y3 optical coupling isolation output by a programmable logic controller to control a precipitant metering pump to be in a shutdown state; and if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
The system further comprises a power circuit, and the power circuit is electrically connected with the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud communication module and the human-computer interaction module respectively.
Furthermore, the wireless communication module comprises a GPRS communication module, a TCP communication module and a WIFI communication module;
the four-digit dial switch is electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module respectively so as to switch and select a communication mode.
Furthermore, the programmable controller is provided with an MODBUS communication interface, and the human-computer interaction communication module is provided with a USB interface for downloading programs.
For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a block diagram of an exemplary cloud-based intelligent water quality monitoring system according to the present application;
FIG. 2 is a block diagram illustrating an exemplary programmable controller and associated I/O module connections according to the present disclosure;
FIG. 3 is a block diagram illustrating an exemplary human-computer interaction module according to the present application;
fig. 4 is a block diagram of an exemplary cloud communication module according to the present application;
FIG. 5 is a schematic illustration of a display screen showing results of an exemplary embodiment of the present application;
fig. 6 is a control flow diagram of an exemplary cloud-based intelligent water quality monitoring system of the present application;
fig. 7 is a flowchart illustrating another control of the cloud-based intelligent water quality monitoring system according to the present disclosure;
FIG. 8 is a schematic diagram of an exemplary rectangular coordinate system of the present application.
Detailed Description
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 to 8, an exemplary cloud intelligent water quality monitoring system of the present application includes a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module, and a human-computer interaction module;
the detection input module carries out analog quantity transmission on the detected analog signals, and the analog signals are transmitted to the programmable controller in a digital signal mode after being subjected to analog-to-digital conversion by the digital sensor input module at the programmable controller; the liquid level input module carries out analog-to-digital conversion on the monitored analog signal of the liquid level through the digital sensor input module and then transmits the analog signal of the monitored liquid level to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the medicine injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the human-computer interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-digit dial switch and a wireless communication module; the cloud communication processor is respectively electrically connected with the four-digit dial switch and the wireless communication module, and controls the four-digit dial switch to switch a wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance-type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen.
S10, the programmable controller carries out standardization processing on the digital signals transmitted by the digital sensor input module to obtain standardized detection signals;
in some preferred embodiments, the normalizing the digitized signal to obtain a normalized detection signal includes:
s11, establishing a rectangular coordinate system by taking the input value as a horizontal coordinate and the standard value as a vertical coordinate;
s12, obtaining a starting point coordinate according to the starting point input value and the starting value of the standard value in the setting process; obtaining a terminal coordinate according to a terminal input value and a termination value of a standard value in the setting process;
s13, connecting the start point coordinate and the end point coordinate on the same straight line to obtain a standardized oblique line;
and S14, corresponding the acquired value of the digitized signal on an abscissa, and finding a longitudinal coordinate value of a corresponding standardized oblique line to obtain a numerical value of the standardized detection signal.
S20, comparing the standardized detection signal with a set range;
in some preferred embodiments, the comparing the normalized detection signal with a set range includes:
s21, setting a detection range of each detected signal, comparing the value of the standardized detection signal with the end value of the set detection range if the initial value of the detection range of the detected signal is 0, and outputting qualified signals if the value of the standardized detection signal is less than the end value; if the value of the standardized detection signal is larger than the end point value, the output is higher;
s22, if the initial value of the detection range of the detected signal is larger than 0, comparing the numerical value of the standardized detection signal with the initial value of the set detection range, and if the numerical value of the standardized detection signal is smaller than the initial value as a comparison result, outputting the numerical value to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the end value of the set detection range;
s23, if the comparison result is that the value of the standardized detection signal is smaller than the end point value, outputting qualified signals; if the comparison result is that the value of the standardized detection signal is larger than the end point value, the output is higher.
And S30, respectively sending the comparison results to the cloud communication processor and the interaction processor.
In some preferred embodiments, the sending the comparison result to the cloud communication processor and the interaction processor respectively includes: if the comparison result is qualified, sending the obtained value of the standardized detection signal to an interaction processor, and displaying the value on a corresponding module of the display screen after the interaction processor processes the value; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word on a user terminal;
if the comparison result is higher or lower, sending the obtained numerical value of the standardized detection signal to an interaction processor, displaying the numerical value on a display screen in a manner that a dial pointer points on corresponding scales, and displaying the higher or lower on the display screen; and sends "higher" or "lower" to the cloud communication processor.
In some preferred embodiments, after the sending the comparison result to the cloud communication processor and the interaction processor, respectively, the method further includes:
s40, establishing an incidence relation between a detection input module and the output control module;
in some preferred embodiments, the establishing of the association relationship between the detection input module and the output control module includes establishing an association relationship between a residual chlorine sensor and a Y0 optical coupling isolation output, respectively establishing an association relationship between a pH sensor and a Y1 optical coupling isolation output and a Y2 optical coupling isolation output, establishing an association relationship between a turbidity sensor and a Y3 optical coupling isolation output, and respectively establishing an association relationship between a dissolved oxygen sensor, a constant pressure residual oxygen sensor, an ammonia nitrogen sensor and an oxygenation pump.
And S50, sending a corresponding control signal to the corresponding liquid injection pump by the programmable controller so as to control the start or the stop of the corresponding liquid injection pump.
In some preferred embodiments, the programmable controller sending a corresponding control signal to a corresponding infusion pump includes:
performing analog-to-digital conversion on an analog signal detected by the residual chlorine sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a residual chlorine measurement value, and comparing the residual chlorine measurement value with a residual chlorine set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output to control the chlorine liquid metering pump to be in a stop state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in a running state;
performing analog-to-digital conversion on an analog signal detected by the pH sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a pH value, and comparing the pH value with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a shutdown state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
performing analog-to-digital conversion on an analog signal detected by a turbidity sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a turbidity value, comparing the turbidity value with a turbidity set value, and if the comparison result is qualified, sending a control signal to Y3 optical coupling isolation output by a programmable logic controller to control a precipitant metering pump to be in a shutdown state; and if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
In some preferred embodiments, residual chlorine is detected in the range of 0.2 to 1.0ppm, pH is detected in the range of 6.9 to 7.9, dissolved oxygen is detected in the range of 650 to 750ppm, and turbidity is detected in the range of 0.01 to 10NTU.
In some preferred embodiments, the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant-pressure residual oxygen sensor and an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitator liquid level meter;
the output control module comprises a Y0 optical coupling isolation output, a Y1 optical coupling isolation output, a Y2 optical coupling isolation output and a Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump.
In some preferred embodiments, the mobile terminal further comprises a power circuit, and the power circuit is electrically connected to the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud communication module, and the human-computer interaction module respectively.
In some preferred embodiments, the wireless communication module comprises a GPRS communication module, a TCP communication module, and a WIFI communication module;
the four-digit dial switch is electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module respectively so as to switch and select a communication mode.
In some preferred embodiments, the programmable controller is provided with a MODBUS communication interface, and the human-computer interaction communication module is provided with a download program USB interface.
The monitoring process with the residual chlorine value is exemplified to explain the working principle of the cloud intelligent water quality monitoring system.
The analog signal obtained by the residual chlorine sensor is subjected to analog-to-digital conversion, then is transmitted in a digital signal mode, and the signal is subjected to standardization processing in a programmable controller. As shown in FIG. 8, the output signal of a standard probe is 4-20mv, while the output signal of the sensor is 2-30mv. Establishing a rectangular coordinate system, taking the input value as a horizontal coordinate and the standard value as a vertical coordinate to obtain a starting point coordinate (2, 4) and also obtain an end point coordinate (30, 20); the starting point and the end point are connected to obtain a standardized oblique line. If the output signal detected at a certain moment is 12mv, it is converted into a value of 6.86mv for the output signal m normalized at that moment. If the measuring range of the residual chlorine sensor is 0-100ppm, the ratio of the total measuring range of the residual chlorine at the moment is as follows: (6.86-4)/(20-4) =17.875%, and the measured value of residual chlorine at that time point is 100 × 17.875% =17.875ppm. As for the operation from the electrical signal to a specific value, the prior art can implement, and is not described in detail in this application.
In addition, the present application has another standardized calculation method.
And taking the measuring range of the standardized probe as a vertical coordinate and the measuring range of the actually used probe as a horizontal coordinate, converting the actually read measuring range into the standardized measuring range, and then directly obtaining the standardized result of the actually measured value.
Further, the residual chlorine value can be compared with a set detection range, if the set detection range is 0.1-10ppm, the measured residual chlorine value at the moment is greater than the end value of the detection range, a high value is output, and the result is synchronously sent to the interactive processor and the cloud communication processor, so that a user can know the result in time.
Through the cloud intelligent water quality monitoring system, the non-standardized sensor can be used immediately without further standardized adaptation, so that the adaptation cost is reduced, the selection requirement on the sensor is lowered, the data monitoring is accurate and reliable, and the cloud intelligent water quality monitoring system has good universality and high accuracy. Due to the improvement of the universality, the interconnection and intercommunication become easy and convenient realization to be possible, so that the detection data can be conveniently acquired, the data are transmitted to the human-computer interaction module and the cloud server, and the Internet of things state of all things interconnection can be easily realized. Or, the Internet of things mode of water quality monitoring and control is realized, the requirement on a sensor for water quality monitoring is reduced, even a non-standard product can be well adapted, and the non-standard sensor can be ensured to have higher detection precision.
In order to ensure the detection precision, the data detected by the sensor is directly used after being amplified and filtered without standardized adaptation, so that the data accuracy can be ensured, and the result obtained after conversion is accurate and reliable. The filtering and amplifying operation adopted by the data detected by the sensor can be carried out according to the performance of the sensor, and the amplification and filtering operation is not required to be carried out according to the standardized requirement, so that the accuracy of the obtained result is more easily ensured.
In addition, the operation mode in the programmable controller can be programmed according to user definition, and the module of the programmable controller can be freely defined, so that abundant personalized requirements are realized, and the customized requirements of detection are also ensured. Therefore, more equipment or elements can be accessed, and the Internet of things for monitoring the water quality is easier to realize.
The application also provides abundant joints and interactive operation modules, so that newly accessed equipment is more convenient, and the modules are easier to add.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (10)
1. The utility model provides a high in clouds intelligence quality of water monitored control system which characterized in that: the system comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a human-computer interaction module;
the detection input module carries out analog quantity transmission on the detected analog signal, and the analog signal is transmitted to the programmable controller in a digital signal mode after being subjected to analog-to-digital conversion by the digital sensor input module at the programmable controller; the liquid level input module carries out analog-to-digital conversion on the monitored analog signal of the liquid level through the digital sensor input module and then transmits the analog signal of the monitored liquid level to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the medicine injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the human-computer interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-digit dial switch and a wireless communication module; the cloud communication processor is respectively electrically connected with the four-digit dial switch and the wireless communication module, and controls the four-digit dial switch to switch a wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance-type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen;
the programmable controller carries out standardized processing on the digitized signals transmitted by the digitized sensor input module to obtain standardized detection signals, compares the standardized detection signals with a set range, and respectively sends comparison results to the cloud communication processor and the interaction processor.
2. The cloud-based intelligent water quality monitoring system of claim 1, wherein the normalizing the digitized signals to obtain normalized detection signals comprises:
establishing a rectangular coordinate system by taking the input value as a horizontal coordinate and the standard value as a vertical coordinate;
obtaining a starting point coordinate according to a starting point input value and a starting value of the standard value in the setting process; then obtaining a terminal coordinate according to a terminal input value and a termination value of the standard value during setting;
connecting the starting point coordinate and the end point coordinate on the same straight line to obtain a standardized oblique line;
and corresponding the acquired value of the digital signal on an abscissa, and finding a longitudinal coordinate value of a corresponding standardized oblique line, thereby obtaining a numerical value of the standardized detection signal.
3. A cloud-based intelligent water quality monitoring system as claimed in claim 2, wherein the comparing the standardized detection signal with the set range comprises:
setting the detection range of each detected signal, if the initial value of the detection range of the detected signal is 0, comparing the value of the standardized detection signal with the end value of the set detection range, and if the value of the standardized detection signal is less than the end value, outputting a qualified signal; if the value of the standardized detection signal is larger than the end point value, the output is higher;
if the initial value of the detection range of the detected signal is greater than 0, comparing the value of the standardized detection signal with the initial value of the set detection range, and if the comparison result shows that the value of the standardized detection signal is less than the initial value, outputting the value to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the end value of the set detection range;
if the comparison result is that the value of the standardized detection signal is smaller than the end point value, outputting to be qualified; if the comparison result is that the value of the standardized detection signal is larger than the end point value, the output is higher.
4. The cloud-based intelligent water quality monitoring system according to claim 3, further comprising, after the comparison results are respectively sent to the cloud-based communication processor and the interaction processor:
establishing an incidence relation between a detection input module and the output control module;
and the programmable controller sends corresponding control signals to the corresponding liquid injection pumps to control the start or the stop of the corresponding liquid injection pumps.
5. The cloud-based intelligent water quality monitoring system of claim 4, wherein the comparing results are respectively sent to the cloud-based communication processor and the interaction processor, and the comparing results comprise: if the comparison result is qualified, sending the obtained value of the standardized detection signal to an interaction processor, and displaying the value on a corresponding module of the display screen after the interaction processor processes the value; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word on a user terminal;
if the comparison result is higher or lower, sending the obtained numerical value of the standardized detection signal to an interaction processor, displaying the numerical value on a display screen in a manner that a dial pointer points on corresponding scales, and displaying the higher or lower on the display screen; and sends "higher" or "lower" to the cloud communication processor.
6. The cloud intelligent water quality monitoring system of claim 4, wherein the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant-pressure residual oxygen sensor and an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitator liquid level meter;
the output control module comprises a Y0 optical coupling isolation output, a Y1 optical coupling isolation output, a Y2 optical coupling isolation output and a Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump;
the establishment of the incidence relation between the detection input module and the output control module comprises the establishment of the incidence relation between a residual chlorine sensor and a Y0 optical coupling isolation output, the establishment of the incidence relation between a pH sensor and a Y1 optical coupling isolation output and a Y2 optical coupling isolation output, the establishment of the incidence relation between a turbidity sensor and a Y3 optical coupling isolation output, and the establishment of the incidence relation between a dissolved oxygen sensor, a constant-pressure residual oxygen sensor, an ammonia nitrogen sensor and an oxygenation pump.
7. A cloud intelligence water quality control system in accordance with claim 6, wherein said programmable controller sends a corresponding control signal to a corresponding infusion pump, comprising:
performing analog-to-digital conversion on an analog signal detected by the residual chlorine sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a residual chlorine measurement value, and comparing the residual chlorine measurement value with a residual chlorine set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output to control the chlorine liquid metering pump to be in a shutdown state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in a running state;
performing analog-to-digital conversion on an analog signal detected by the pH sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a pH value, and comparing the pH value with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a shutdown state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
performing analog-to-digital conversion on an analog signal detected by a turbidity sensor, performing standardization processing on a digital signal subjected to the analog-to-digital conversion to obtain a turbidity value, comparing the turbidity value with a turbidity set value, and if the comparison result is qualified, sending a control signal to Y3 optical coupling isolation output by a programmable logic controller to control a precipitant metering pump to be in a shutdown state; and if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
8. The cloud-based intelligent water quality monitoring system according to any one of claims 1 to 7, further comprising a power circuit, the power circuit being electrically connected to the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud-based communication module, and the human-computer interaction module, respectively.
9. The cloud-based intelligent water quality monitoring system according to claim 8, wherein the wireless communication module comprises a GPRS communication module, a TCP communication module and a WIFI communication module;
the four-digit dial switch is electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module respectively so as to switch and select a communication mode.
10. A cloud intelligent water quality monitoring system according to claim 9, wherein the programmable controller is provided with an MODBUS communication interface, and the human-computer interaction communication module is provided with a download program USB interface.
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