CN116222669B - Water quality and weight real-time monitoring system and monitoring method of automatic water vending machine - Google Patents
Water quality and weight real-time monitoring system and monitoring method of automatic water vending machine Download PDFInfo
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- CN116222669B CN116222669B CN202310438141.0A CN202310438141A CN116222669B CN 116222669 B CN116222669 B CN 116222669B CN 202310438141 A CN202310438141 A CN 202310438141A CN 116222669 B CN116222669 B CN 116222669B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 411
- 238000012544 monitoring process Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 79
- 238000005303 weighing Methods 0.000 claims abstract description 74
- 238000003860 storage Methods 0.000 claims abstract description 29
- 230000003993 interaction Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 description 19
- 230000002159 abnormal effect Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 235000020118 bottled purified water Nutrition 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
Abstract
The application discloses a real-time monitoring system and a monitoring method for water quality and weighing of an automatic water vending machine, wherein the real-time monitoring system and the monitoring method are used for a water quality detection unit for detecting the water quality of water stored in a water storage tank in real time, a weighing detection unit for weighing water yield in real time, a controller unit for controlling the on-off of a water vending function of the automatic water vending machine, and a monitoring unit for acquiring data information of the water quality detection unit and the weighing detection unit, and sending instruction signals to the controller unit according to monitoring results. The water quality and the water yield in the water storage tank are detected by the water quality detection unit and the weighing detection unit, the detection result is uploaded to the monitoring unit in real time, the detection result obtained by the monitoring unit is displayed and published by the display screen unit, and the automatic water vending machine is shut down in time after the unqualified condition is detected, so that the unqualified water is prevented from leaking. The high efficiency and timeliness of water quality monitoring and weighing monitoring of the automatic water vending machine are improved.
Description
Technical Field
The application relates to the technical field of water vending machines, in particular to a real-time monitoring system and a monitoring method for water quality and weight of an automatic water vending machine.
Background
The automatic water vending machine is mainly applied to residents in a community for use, and is a water purifier type integrating water making and water vending. The purified water is produced by pressurizing a water pump and passes through a plurality of filters, including an activated carbon filter, a PP cotton filter element, an RO membrane and the like, and is stored in a water storage tank. Incorrect use of the water vending machine equipment easily causes secondary water supply pollution, and threatens drinking safety.
At present, the interfaces of the automatic water vending machine are directly exposed outside, no protective measures exist, some of the automatic water vending machine has external protection, but the automatic water vending machine can be opened at will, some of the automatic water vending machine has no maintenance record and no water quality detection report, and even if some of the automatic water vending machine has maintenance record outside, the automatic water vending machine has no continuity in time, and the problems of periodic maintenance and untimely cleaning exist. The water vending machine system generally adopts a membrane treatment technology, and professional design, construction, operation, maintenance and water quality detection are required. If the components such as the filter element are not cleaned and replaced timely, the water purifying system becomes a pollution source to influence the water quality; misalignment of the flowmeter can cause inaccurate settlement of the water quantity of the water vending machine. Because of the lack of a third-party mechanism for detecting and evaluating the performance, the water quality can be detected only by means of regular maintenance and manual sampling of factories, and the problems that the water quality is abnormal, the filter element is not replaced timely and the water selling amount settlement is inaccurate are mainly solved.
Disclosure of Invention
In view of the above, the present application provides a real-time monitoring system and method for water quality and weight of an automatic water vending machine, which aims to solve the problems of high efficiency and real-time performance of water quality monitoring and weight monitoring of an automatic water vending machine.
In order to solve the technical problems, the technical scheme of the application is to provide a real-time monitoring system for water quality and weighing of an automatic water vending machine, which comprises the following components: the automatic water vending machine comprises a water quality detection unit for detecting the water quality of a water storage tank in real time, a weighing detection unit for weighing the water yield in real time, a controller unit for controlling the automatic water vending machine, and a monitoring unit for acquiring data information of the water quality detection unit and the weighing detection unit, monitoring the data information and sending an instruction signal to the controller unit according to a monitoring result.
Optionally, the water quality detection unit comprises a conductivity meter externally connected with the water storage tank of the automatic water vending machine, and the conductivity meter is used for measuring the conductivity of water quality in the water storage tank.
Optionally, the conductivity meter has a temperature compensation function.
Optionally, the conductivity meter with temperature compensation function is equipped with a dedicated pure water measuring electrode.
Optionally, the weighing detection unit comprises a temperature sensor arranged in the water storage tank and an electronic balance arranged on the filling platform.
Optionally, the electronic balance has a maximum weighing of 30kg and an actual dividing value of 0.1g.
Optionally, the system further comprises a display screen unit, wherein the display screen unit is used for carrying out data interaction with the monitoring unit and displaying the interacted data in a display panel.
In addition, the application also provides a real-time monitoring method for the water quality and the weight of the automatic water vending machine, which is applied to the monitoring system and comprises the following steps:
acquiring data information acquired by a water quality detection unit and a weighing detection unit;
according to the data information, respectively calculating conductivity information of water quality at a preset temperature and relative error information of water yield;
respectively judging the water quality in the water storage tank and the water yield of the automatic water vending machine according to the conductivity information and the relative error information to obtain a judging result;
based on the judging result, sending an instruction signal to the controller unit so that the controller unit controls the operation of the automatic water vending machine according to the instruction signal;
and sending the data information and the judging result information to the display screen unit in real time, so that the display panel of the display screen unit displays the monitoring condition of the automatic water vending machine in real time.
Optionally, the calculating, according to the data information, the conductivity information of the water quality at the preset temperature and the relative error information of the water yield respectively includes:
the preset temperature is set by adjusting the constant of a conductivity cell of the conductivity meter to be matched with a special pure water measuring electrode arranged on the conductivity meter;
converting the actual temperature compensation of the water stored in the water storage tank into a preset temperature condition by utilizing the temperature compensation function of the conductivity meter, and acquiring a conductivity measured value under the preset temperature condition;
calculating actual water yield information according to temperature information measured by a temperature sensor and mass information measured by an electronic balance;
and acquiring water selling quantity display information of the water selling machine with the measuring device, and calculating relative error information of water yield based on the actual water yield information and the water selling quantity display information.
Optionally, the sending an instruction signal to the controller unit based on the determination result, so that the controller unit controls the operation of the automatic water vending machine according to the instruction signal, including:
if the measured value of the conductivity under the preset temperature condition is not greater than a first preset value and the relative error information of the water yield is not greater than a second preset value, the judgment result is qualified, and the automatic water vending machine operates normally;
if the measured value of the conductivity under the preset temperature condition is larger than a first preset value, or the relative error information of the water yield is larger than a second preset value, or if the measured value of the conductivity under the preset temperature condition is larger than the first preset value and the relative error information of the water yield is larger than the second preset value, the result is judged to be unqualified;
if the judging result is unqualified, sending an instruction signal for stopping operation to the controller unit so that the controller unit stops the automatic water vending machine according to the instruction signal, and sending an alarm signal to the part with the unqualified judging result so that the monitoring unit can timely maintain and refurbish the unqualified part of the automatic water vending machine according to the alarm signal.
The application provides a real-time monitoring system and a monitoring method for water quality and weighing of an automatic water vending machine, wherein the real-time monitoring system and the monitoring method are used for a water quality detection unit for detecting the water quality of water stored in a water storage tank in real time, a weighing detection unit for weighing water yield in real time, a controller unit for controlling the on-off of a water vending function of the automatic water vending machine, and a monitoring unit for acquiring data information of the water quality detection unit and the weighing detection unit, and sending instruction signals to the controller unit according to monitoring results. The water quality and the water yield in the water storage tank are detected by the water quality detection unit and the weighing detection unit, the detection result is uploaded to the monitoring unit in real time, the detection result obtained by the monitoring unit is displayed and published by the display screen unit, and the automatic water vending machine is shut down in time after the unqualified condition is detected, so that unqualified water resources are prevented from leaking. After unqualified or weighing inaccuracy of water quality is monitored, abnormal conditions can be alarmed at the first time, so that maintenance personnel can timely maintain the automatic water vending machine, the problems of unqualified water quality detection results and guaranteeing no water purification effect are solved, meanwhile, the problems of inaccurate automatic water vending quantity settlement, filter element replacement and untimely water tank cleaning are solved, and the high efficiency and timeliness of the automatic water vending machine on water quality and weighing monitoring are guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a real-time monitoring system for water quality and weight of an automatic water vending machine according to an embodiment of the present application;
FIG. 2 is a schematic diagram showing steps of a method for monitoring water quality and weighing of an automatic water vending machine in real time according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing the steps of S12 in a method for monitoring the quality and weight of water in an automatic water vending machine in real time according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a water quality and weighing judgment result of an automatic water vending machine according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a real-time monitoring system for water quality and weight of an automatic water vending machine according to another embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the embodiments of the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The existing automatic water vending machine has interfaces which are directly exposed outside, no protective measures exist, some of the automatic water vending machine has external protection, but the automatic water vending machine can be opened at will, some of the automatic water vending machine has no maintenance record and no water quality detection report attached to the outside, and even if some automatic water vending machine has maintenance records attached to the outside, the automatic water vending machine has no continuity in time, and the problems of periodic maintenance and untimely cleaning exist. Meanwhile, the water vending machine in use can have the problems of water quality reduction and inaccurate metering due to pollution of a filter element, drifting of a flowmeter and the like.
In view of the above, the present application provides a real-time monitoring system and method for water quality and weight of an automatic water vending machine, which are used for solving the problems of high efficiency and real-time performance of water quality monitoring and weight monitoring of the automatic water vending machine.
Fig. 1 is a schematic structural diagram of a real-time monitoring system for water quality and weighing of an automatic water vending machine according to the embodiment.
A real-time monitoring system for water quality and weighing of an automatic water vending machine comprises a water quality detection unit, a weighing detection unit, a controller unit, a monitoring unit and a display screen unit.
The water quality detection unit is used for detecting the water quality of water stored in the water storage tank in real time, and specifically adopts a conductivity meter with the grade of 0.5 and the temperature compensation function, wherein the conductivity meter is provided with a special pure water measurement electrode, the constant of a conductivity cell of the conductivity meter is adjusted to be matched with the electrode, the reference temperature is set to be a preset value, and specifically set to be 25 ℃. The conductivity meter is externally connected to the water storage tank of the automatic water vending machine, is connected with the water storage tank of the automatic water vending machine through a special connecting pipeline, detects the water quality in the water storage tank in real time, and converts the conductivity meter into a conductivity measured value under the condition of 25 ℃ through a temperature compensation function and sends the conductivity measured value to the monitoring unit.
The weighing detection unit comprises a temperature sensor and an electronic balance, wherein the temperature sensor is arranged in the water storage tank and is used for detecting the water quality temperature in the water storage tank in real time, and the expansion uncertainty is less than 0.1 ℃. The electronic balance is additionally arranged on the filling platform below the water outlet, and the electronic balance with the maximum weighing of 30kg and the actual dividing value of 0.1g is adopted.
It should be noted that, the electronic balance is also provided with a display screen for displaying the numerical value of electronic balance weighing, the water purchasing user can check the water purchasing amount according to the display screen on the electronic balance, meanwhile, the maintainer can test the indication value of the electronic balance by using the standard weight which is qualified by the metering technical mechanism, so as to judge the accuracy of electronic balance weighing, whether a weighing error occurs or not, and the maintenance is needed in time.
As an implementation mode, the electronic balance can be directly arranged below the water outlet instead of the filling platform of the existing automatic water vending machine, and it can be understood that the electronic balance is applied to the arrangement mode below the water outlet of the automatic water vending machine, and the technical scheme for carrying out quality detection on the water yield is included in the protection scope of the embodiment.
The controller unit is used for receiving the instruction signal sent by the monitoring unit so as to control the running state of the automatic water vending machine, and after the monitoring unit sends the shutdown instruction signal, the controller unit receives the instruction signal and shuts down the water vending function of the automatic water vending machine.
The display screen unit comprises a display panel, and the display panel is only used for data display, and the water quality information and the state information of the automatic water vending machine are published and displayed by receiving the water quality data, the weighing data and the result judging data acquired by the monitoring unit, so that a user can check the water quality and the weighing of the automatic water vending machine in real time, know the water quality condition and the equipment condition, not only facilitate maintenance personnel to confirm abnormal positions, but also enable the water purchasing user to clearly and easily use the automatic water vending machine in the chest of the automatic water vending machine, and the water quality problem or the inaccurate weighing are not worry, and the situation of two missing weight is generated.
The monitoring unit is used for receiving the related data collected by the water quality detection unit and the weighing detection unit, performing conversion operation on the collected related data, judging whether the water quality detection is qualified or not, sending instruction information to the controller unit according to the judging result, and sending a closing instruction to the controller unit if the judging result is unqualified, so that the controller unit closes the water selling function of the automatic water selling machine, and unqualified water is prevented from flowing into the market, or the phenomenon that the weighing inaccurate water selling mode causes dissatisfaction of a water purchasing user is prevented. In addition, the monitoring unit is also in information interaction with the display screen unit, and specifically, the monitoring unit can send water quality detection information and weighing detection information obtained through real-time monitoring and automatic water vending machine state information to the display screen unit so as to show the information through a display panel of the display screen unit, so that the monitoring unit is convenient for multiparty supervision of water purchasing users and maintenance personnel, and meanwhile, the maintenance personnel can accurately and rapidly find out where the problem source of the abnormality of the automatic water vending machine is, and timely maintain and process the problem source.
It should be noted that, the monitoring unit is not only used for the data interaction and the judgment of water quality detection and weighing detection, but also used for storing, arranging and classifying the data acquired in real time, and the user can count and summarize the water quality state and water selling amount information of the automatic water selling machine by irregularly checking the data stored and arranged and classified by the monitoring unit, so that the harvest condition of the automatic water selling machine can be mastered better, and further the automatic water selling machine at more proper positions can be arranged according to the mastered information adaptability, so that the situation that the supply and the demand of the automatic water selling machine are not in demand when the water purchasing user has large volume is met.
The embodiment provides a water quality and weighing real-time monitoring system of an automatic water vending machine, which comprises a water quality detection unit, a weighing detection unit, a controller unit and a monitoring unit, wherein the water quality detection unit is used for detecting the water quality of a water storage tank in real time, the weighing detection unit is used for weighing the water yield in real time, the controller unit is used for controlling the automatic water vending machine, the monitoring unit is used for acquiring data information of the water quality detection unit and the weighing detection unit, and the monitoring unit is used for sending instruction signals to the controller unit according to a monitoring result. The water quality and the water yield in the water storage tank are detected by the water quality detection unit and the weighing detection unit, the detection result is uploaded to the monitoring unit in real time, the detection result obtained by the monitoring unit is displayed and published by the display screen unit, and the automatic water vending machine is shut down in time after the unqualified condition is detected, so that unqualified water resources are prevented from leaking. After unqualified or weighing inaccuracy of water quality is monitored, abnormal conditions can be alarmed at the first time, so that maintenance personnel can timely maintain the automatic water vending machine, the problems of unqualified water quality detection results and guaranteeing no water purification effect are solved, meanwhile, the problems of inaccurate automatic water vending quantity settlement, filter element replacement and untimely water tank cleaning are solved, and the high efficiency and timeliness of the automatic water vending machine on water quality and weighing monitoring are guaranteed.
Further, for the system for monitoring the water quality and the weight of the automatic water vending machine in real time provided by the embodiment, the embodiment also provides a method for monitoring the water quality and the weight of the automatic water vending machine in real time, and specific steps of the method are shown in fig. 2.
S11, acquiring data information acquired by the water quality detection unit and the weighing detection unit.
The electrode of the conductivity meter is connected with the water storage tank of the automatic water vending machine through a special connecting pipeline, and water quality in the water storage tank is detected in real time, so that water quality data information of the water quality detection unit is obtained.
Further, after the empty barrel is put on the filling platform, the electronic balance automatically weighs out the mass of the empty barrelmThen injecting water, and automatically weighing the total mass of the barreled water by an electronic balance after the automatic water vending machine automatically (or manually swipes cards) stops water dischargeMMeanwhile, the temperature sensor is collected to measure the temperature of the water, and the information is integrated to be used as the weighing data information collected by the weighing detection unit.
S12, according to the data information, respectively calculating the conductivity information of the water quality at the preset temperature and the relative error information of the water yield, as shown in fig. 3.
S121, setting the preset temperature by adjusting the constant of a conductivity cell of the conductivity meter to be matched with a special pure water measuring electrode arranged on the conductivity meter.
S122, converting the actual temperature compensation of the water stored in the water storage tank into a preset temperature condition by utilizing the temperature compensation function of the conductivity meter, and obtaining a conductivity measured value under the preset temperature condition.
The preset temperature is specifically set to 25 ℃, after the water quality data information and the weighing data information are obtained, the conductivity meter is converted into a conductivity measurement value under the condition of 25 ℃ through a temperature compensation function, and the conductivity information of the water quality at the preset temperature is obtained.
S123, calculating actual water yield information according to temperature information measured by the temperature sensor and mass information measured by the electronic balance.
According to the temperature information measured by the temperature sensor and the mass information measured by the electronic balance, the density of water corresponding to the current water temperature is obtained, and the density of pure water at the corresponding temperature is checked by comparing with an annex A water density table in GB/T22594-2018 general rule of Density determination method of Water treatment agent, so that the relative error information of water yield is calculated by utilizing a formula, specifically:
actual water yield: and (V)m=M-m，In the formula, the formula (I)mThe unit is g for the actual water outlet quality of the water vending machine; m is the total mass of the barrel and water in g; m is the empty barrel mass in g.
The actual water outlet capacity of the automatic water vending machine is as follows:in which, in the process,Vthe unit is L, which is the actual water outlet capacity of the water vending machine; and (V)mThe unit is g for the actual water outlet quality of the water vending machine; the pure water density at a certain temperature is measured for the water vending machine, and the unit is g/L.
S124, acquiring water selling quantity display information of a measuring device of the water selling machine, and calculating relative error information of water yield based on the actual water yield information and the water selling quantity display information.
Relative error in water yield:wherein->The relative error of the single water yield is a percentage value,Vthe actual water outlet capacity of the water vending machine is L.
It should be noted that, the display value of the water vending machine is obtained by reading from a measuring device provided with the water vending machine when leaving the factory (usually a flowmeter), and because the flowmeter is inconvenient to disassemble and is not easy to maintain and check regularly, the flowmeter is not known due to the misalignment, so that the relative error of the water yield is calculated by respectively reading the display value of the flowmeter (the display value of the water vending machine) and the actual water outlet capacity value obtained based on an electronic balance, whether the flowmeter has abnormal conditions such as metering deviation and flowmeter drift can be further determined, when the abnormal conditions occur, the water vending function is closed in time, and an alarm prompt is sent out at the same time, so that maintenance personnel can maintain the water vending machine with the abnormal conditions in time, and the normal operation of equipment is ensured.
S13, respectively judging the water quality in the water storage tank and the water yield of the automatic water vending machine according to the conductivity information and the relative error information to obtain a judging result, as shown in fig. 4.
After the conductivity information and the relative error information are obtained, the water quality and the weight are respectively judged. The judgment basis for water quality detection is specified by referring to the physical and chemical indexes of 4.3.1 mass of bottled purified water for drinking in GB 17323-1998: the conductivity (reference temperature 25 ℃ plus or minus 1 ℃) is less than or equal to 10 mu S/cm, namely:
when the measurement results: the conductivity (reference temperature 25 ℃ plus or minus 1 ℃) is 10 mu S/cm, and is failed, the instruction information is sent to control the water vending machine to stop vending water, and the filter element is prompted to be replaced, and the pipeline and the water tank are cleaned.
When the measurement results: the conductivity (reference temperature 25+/-1 ℃) is less than or equal to 10 mu S/cm, and the water vending machine is in normal operation.
The judgment basis for weighing detection is that according to the specification of 4.5 net content of bottled purified drinking water in GB 17323-1998 and the requirement of JJF1070-2005 'quantitative packing commodity net content metering inspection rule', the water selling amount is within the range of 1L-10L, the net content negative deviation is not more than 1.5%, the common water selling amount of an automatic water vending machine is generally within the range of 1L-10L, so the net content negative deviation of the actual water selling amount is not more than 1.5%, namely:
when the result is less than or equal to 1.5%, judging that the water is qualified and selling normally;
when the result is more than 1.5%, judging that the water vending machine is unqualified, giving a command to control the water vending machine to stop vending water, and prompting to recalibrate the water yield.
And S14, based on the judging result, sending an instruction signal to the controller unit so that the controller unit controls the operation of the automatic water vending machine according to the instruction signal.
S141, if the measured value of the conductivity under the preset temperature condition is not greater than a first preset value and the relative error information of the water yield is not greater than a second preset value, judging that the water vending machine is qualified and operating normally.
If the measured value of the conductivity under the preset temperature condition (the reference temperature is 25+/-1 ℃) is less than or equal to 10 mu S/cm and the relative error information of the water yield is less than or equal to 1.5%, the two conditions are met at the same time, and the judgment result is qualified and the automatic water vending machine operates normally.
S142, if the measured value of the conductivity under the preset temperature condition is larger than a first preset value, or the relative error information of the water yield is larger than a second preset value, or if the measured value of the conductivity under the preset temperature condition is larger than the first preset value and the relative error information of the water yield is larger than the second preset value, the judgment result is unqualified.
The unqualified cases have three cases, one of which is: if the conductivity measured value under the preset temperature condition (the reference temperature 25+/-1 ℃) is more than 10 mu S/cm, the relative error information of the water quantity is not required to be determined at the moment, and the judgment is unqualified; and the second is: if the relative error information of the water yield is more than 1.5%, the conductivity measurement value is not required to be determined at the moment, and the water yield is judged to be unqualified; thirdly, it is: the relative error information of the water yield is more than 1.5% when the conductivity measured value under the preset temperature condition (the reference temperature is 25+/-1 ℃) is more than 10 mu S/cm, and the two conditions are disqualified conditions, so that the judgment result is disqualified, and the water selling function of the automatic water selling machine is closed.
It can be understood that, in the result judging process, if any one of the detection is unqualified, the monitoring unit sends the closing instruction information to the controller unit so that the controller unit closes the water selling function of the water vending machine, and only if the water quality detection and the weighing detection are qualified, the automatic water vending machine can continue to normally operate.
S15, sending the data information and the judging result information to the display screen unit in real time so as to enable a display panel of the display screen unit to display the monitoring condition of the automatic water vending machine in real time
The water quality detection and the weighing detection are performed in real time, and meanwhile, the monitoring unit can continuously synchronize the information acquired by the water quality detection unit and the weighing detection unit into the display screen unit, so that the display panel of the display screen unit can display the information synchronized by the monitoring unit, a water purchasing user can know the water quality information and the weighing information of the automatic water vending machine, and maintenance personnel can determine an abnormal problem source at the first time when the automatic water vending machine is abnormal.
It should be noted that, in the process of synchronously monitoring data, if any one of water quality detection or weighing detection has a problem, the monitoring unit can send out an alarm prompt to prompt maintenance personnel to repair in time, and specifically prompt the part where an abnormality occurs, so that the maintenance personnel can prepare corresponding equipment in advance for professional maintenance and refurbishment.
According to the water quality and weighing real-time monitoring method of the automatic water vending machine, provided by the embodiment, the water quality detection data of the water vending machine at different moments can be recorded in real time, so that the water vending machine can be cleaned and maintained timely, the pollution of a water purifying system is reduced, the abnormal situation can be conveniently and timely checked, meanwhile, a user can conveniently master the water quality in time, the function of closing water vending due to unqualified water quality can be avoided, unqualified water sources can be prevented from flowing into the market, and the legal rights of both buyers and sellers can be guaranteed due to accurate water vending quantity. According to the management rule of the forced checking metering appliance of the metering administrative department, the automatic water vending machine with the functions of automatic settlement and sales and related to trade settlement should be subjected to forced verification. The embodiment also provides technical support for online metering verification of the automatic water vending machine, and is convenient for each metering technical mechanism to detect and evaluate the metering performance and the water purifying function of the automatic water vending machine in use. Through analyzing, counting and evaluating a large amount of data of the water vending machine monitoring system, data support can be provided for government departments to formulate the whole industry standard of the automatic water vending machine, measurement detection basis is provided for the monitoring departments, meanwhile, enterprises are helped to perfect a quality monitoring system, the water vending machine is timely detected and maintained, the standard operation of the water vending machine is guaranteed, users can enjoy the convenience brought by high technology, and the drinking water with safe quality is used.
Further, as shown in fig. 5, the structure of the real-time monitoring system for water quality and weight of the automatic water vending machine according to another embodiment of the present application is shown.
Compared with the real-time monitoring system provided by the embodiment, the embodiment can also replace an electronic balance by additionally arranging the weighing sensor (weighing module) on the filling platform, wherein the weighing sensor (weighing module) is arranged at the bottom of the filling platform and is used for acquiring mass information of the barrel and the water placed in the filling platform respectively and replacing the electronic balance to acquire mass data, so that the acquired mass data is uploaded to the monitoring unit for data processing, and a judgment result of weighing detection is obtained.
It should be noted that, when the weighing sensor (weighing module) is adopted to collect the mass data, the user cannot intuitively know the detailed data of the water purchase by only observing the weighing sensor (weighing module) because of the lack of the mass numerical display screen of the electronic balance, and can only know the detailed data through the display screen unit.
It can be understood that although the embodiment provides another scheme capable of performing centralized detection data acquisition, the embodiment is applied to an environment of automatic water vending machine water purchasing in a community, in which a water purchasing user is the old, and a part of the old has complex information quantity relative to a display screen unit, and the old is more prone to intuitively know the current water purchasing condition through a weighing value displayed on an electronic balance, so that the first embodiment of the application, as an optimal embodiment, can have higher universality.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the application, and the scope of the application should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the application, and such modifications and adaptations are intended to be comprehended within the scope of the application.
Claims (5)
1. A water quality and weight real-time monitoring system of an automatic water vending machine is characterized by comprising: the automatic water vending machine comprises a water quality detection unit for detecting the water quality of water stored in a water storage tank in real time, a weighing detection unit for weighing the water yield in real time, a controller unit for controlling the opening and closing of a water vending function of the automatic water vending machine, and a monitoring unit for acquiring data information of the water quality detection unit and the weighing detection unit, monitoring the data information and sending out instruction signals to the controller unit according to a monitoring result, wherein the monitoring unit respectively reads a flow meter display value and an actual water yield capacity value obtained based on the weighing detection unit, and calculates the relative error of the water yield; the water quality detection unit comprises a water storage tank externally connected with a conductivity meter, wherein the conductivity meter is used for measuring the conductivity of water quality in the water storage tank;
the automatic water vending machine is provided with a volumetric flowmeter;
the conductivity meter has a temperature compensation function;
the conductivity meter with temperature compensation function is equipped with special pure water measuring electrode;
the weighing detection unit comprises a temperature sensor arranged in the water storage tank and an electronic balance arranged on the filling platform;
the maximum weighing of the electronic balance is 30kg, and the actual dividing value is 0.1g.
2. The real-time monitoring system for water quality and weight of automatic water vending machine according to claim 1, further comprising a display screen unit, wherein the display screen unit is used for performing data interaction with the monitoring unit and displaying the interacted data in a display panel.
3. The real-time monitoring method for the water quality and the weight of the automatic water vending machine is characterized by being applied to the monitoring system of any one of the claims 1-2, and comprising the following steps:
acquiring data information acquired by a water quality detection unit and a weighing detection unit;
according to the data information, respectively calculating conductivity information of water quality at a preset temperature and relative error information of water yield;
respectively judging the water quality in the water storage tank and the water yield of the automatic water vending machine according to the conductivity information and the relative error information to obtain a judging result;
based on the judging result, sending an instruction signal to the controller unit so that the controller unit controls the operation of the automatic water vending machine according to the instruction signal;
and sending the data information and the judging result information to the display screen unit in real time, so that the display panel of the display screen unit displays the monitoring condition of the automatic water vending machine in real time.
4. The method for real-time monitoring the water quality and the weight of the automatic water vending machine according to claim 3, wherein the calculating the relative error information of the conductivity information and the water yield of the water quality at the preset temperature according to the data information comprises the following steps:
the preset temperature is set by adjusting the constant of a conductivity cell of the conductivity meter to be matched with a special pure water measuring electrode arranged on the conductivity meter;
converting the actual temperature compensation of the water stored in the water storage tank into a preset temperature condition by utilizing the temperature compensation function of the conductivity meter, and acquiring a conductivity measured value under the preset temperature condition;
calculating actual water outlet capacity information according to temperature information measured by a temperature sensor and mass information measured by an electronic balance;
and acquiring water selling quantity display information of a volumetric flowmeter of the water selling machine, and calculating relative error information of water yield based on the actual water outlet capacity information and the water selling quantity display information.
5. A method for monitoring the quality and weight of an automatic water vending machine according to claim 3, wherein the step of sending a command signal to the controller unit based on the determination result to cause the controller unit to control the operation of the automatic water vending machine according to the command signal comprises:
if the measured value of the conductivity under the preset temperature condition is not greater than a first preset value and the relative error information of the water yield is not greater than a second preset value, the judgment result is qualified, and the automatic water vending machine operates normally;
if the measured value of the conductivity under the preset temperature condition is larger than a first preset value, or the relative error information of the water yield is larger than a second preset value, or if the measured value of the conductivity under the preset temperature condition is larger than the first preset value and the relative error information of the water yield is larger than the second preset value, the result is judged to be unqualified;
if the judging result is unqualified, sending an instruction signal for stopping operation to the controller unit so that the controller unit stops the automatic water vending machine according to the instruction signal, and sending an alarm signal to the part with the unqualified judging result so that the monitoring unit can timely maintain and refurbish the unqualified part of the automatic water vending machine according to the alarm signal.
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| CN116448314B (en) * | 2023-06-12 | 2023-08-29 | 乐山市计量测试所 | Independent pressure source and pressure gauge online detection method |
| CN116448315B (en) * | 2023-06-12 | 2023-08-29 | 乐山市计量测试所 | Online detection method for pressure gauge |
| CN116481712B (en) * | 2023-06-21 | 2023-08-25 | 乐山市计量测试所 | Method for detecting pressure source by using online pressure gauge |
| CN117208283B (en) * | 2023-11-08 | 2024-02-06 | 湖南省计量检测研究院 | Method and device for correcting metering setting flow of filling machine |
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| CN116222669A (en) | 2023-06-06 |
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