[0064] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0065] like figure 1 As shown, the method for monitoring the life of a water purifier filter element provided by the embodiment of the present invention specifically includes:
[0066] S101: Preset the water quality classification standard, the normal threshold value of filter element score and other relevant water quality parameters.
[0067] S102: Use a water quality monitor to detect water quality and monitor changes in the TDS value of the water; use a timer to measure the usage time of the filter element, and use a flow meter to monitor the amount of water filtered by the filter element.
[0068] S103: Based on the water quality parameters obtained in step S102, the change value of the TDS value of the water, the use time of the filter element, and the filtered water volume, perform relevant calculation and analysis to obtain a comprehensive water quality score.
[0069] S104: Based on the comprehensive water quality score and the pre-set water quality grade classification standard, output the water quality grade and the comprehensive score of the filter element.
[0070] S105: Use the display device to display the water quality detection value, TDS value, filter element usage time, filtration flow information, water quality grade and filter element score.
[0071] The TDS value change monitoring method of water provided by the embodiment of the present invention specifically includes:
[0072] The TDS value of the water is detected by the TDS sensor at the outlet end and the TDS sensor at the inlet end respectively, and the difference between the filtered TDS value at the outlet end and the TDS value of the unfiltered water at the inlet end is calculated, and the water purification effect is calculated based on the difference.
[0073] The method for monitoring the life of a water purifier filter element provided by the embodiment of the present invention further includes:
[0074] When the filter element score is lower than the preset normal threshold, the reminder device will automatically issue a reminder to replace the filter element.
[0075] The method for presetting the water quality grade classification standard in S101 provided by the embodiment of the present invention is specifically:
[0076] First, the chromaticity, turbidity, calcium ion and pH value of water are used as indicators of water quality, and a corresponding set of factors is established;
[0077] Thirdly, take the water quality grade as the comment set, establish a connection relationship between the factor set and the comment set, and form a judgment matrix;
[0078] Determine the role of each element on the judging level, and establish a factor matrix;
[0079] Multiply the factor matrix and the judgment matrix, and obtain the comprehensive evaluation result of the water quality results according to the principle of maximum membership degree.
[0080] The colorimetric determination method of described water, specifically includes:
[0081] Fill a set of plug colorimetric tubes to the set performance with the colorimetric standard solution, and fill the water to be measured to the set performance line of the plug colorimetric tube;
[0082] Place the two groups on a white plane, and let the light pass through the chromaticity standard solution and the water column upward from the bottom of the plug colorimetric tube;
[0083] Look down from the upper end of the colorimetric light tube, and observe the standard solution with the closest chromaticity to water.
[0084] The detection method of calcium ion content in described water quality, concrete process is as follows:
[0085] Place the water sample in a beaker and add it to the corresponding pure water, amine triacetate solution, sodium hydroxide solution and calcium-carboxylic acid indicator;
[0086] The EDTA standard solution of a certain concentration is titrated, and the titration process is slow. When the color of the solution changes from purple to bright blue, it is the end point. Finally, according to a certain water sample calcium ion content formula, the corresponding calcium ion content is calculated.
[0087] The pH value detection process of the water quality parameter in the water quality is as follows:
[0088] Place the water flowing through the water purifier into the detection container, intrude the motor cleaned with distilled water into the standard pH buffer solution to be measured, control the temperature around the detection container within an appropriate range, and press the measurement button to make the instrument The displayed pH value is stable at the pH value of the standard buffer solution;
[0089] After the measurement is completed, take out the measuring electrode, rinse it with distilled water, and use filter paper to absorb the water on the electrode;
[0090] Finally, place the electrode in the test solution, press the measurement button, read the stable pH value, and record; repeat the above steps, and take the average value of the obtained pH value.
[0091] like figure 2 As shown, the water purifier filter element life monitoring system provided by the embodiment of the present invention specifically includes:
[0092] The parameter setting module 1 is connected with the comprehensive analysis module, and is used to pre-set the water quality classification standard and other related parameters;
[0093] The water quality detection module 2 is connected to the comprehensive analysis module, and is used to detect the water quality by using a water quality monitor;
[0094] TDS monitoring module 3, connected with the comprehensive analysis module, used to monitor the change of TDS value of water;
[0095] The time monitoring module 4 is connected with the comprehensive analysis module, and is used for monitoring the use time of the filter element;
[0096] The flow monitoring module 5 is connected with the comprehensive analysis module, and is used for monitoring the filtered water volume of the filter element through the flow meter;
[0097] The comprehensive analysis module 6 is connected with the parameter setting module, the water quality detection module, the TDS monitoring module, the time monitoring module, the flow monitoring module, the message reminder module and the display module; it is used for comprehensive analysis of the water quality;
[0098] Message reminder module 7: connected with the comprehensive analysis module, used for reminding the replacement of the filter element by using a reminder device when the filter element score is lower than the preset normal threshold;
[0099] Display module 8: Connected with the comprehensive analysis module, it is used to display water quality detection value, TDS value, filter cartridge usage time, filtration flow information, water quality grade and filter cartridge score.
[0100] The comprehensive analysis module 6 provided by the present invention includes:
[0101] The data samples related to water quality and water purifier are built into modules. The data is connected to the sensor, the interface log calls the stream data, the database captures, the experimenter uploads the data, and the basic data of this information is stored in various dimensions.
[0102] Water quality and water purifier-related data cleaning module, cleans up by filling missing values, smoothing noise, identifying outliers, and correcting inconsistencies in the data, etc.
[0103] The data classification storage module establishes corresponding sample data from the above data, and constructs a classification model according to the sample data; uses the classification model to calculate the similarity between the two, and selects a group of data with the largest similarity into a group; Data is stored in memory.
[0104] The comprehensive analysis module 6 provided by the present invention is also provided with a wireless signal transmission module,
[0105] The comprehensive analysis module uses the host to preprocess the water quality detection value, TDS value, filter cartridge usage time, filtration flow information, water quality grade and filter cartridge score, and uses the wireless signal transmitter in the wireless signal transmission module to transmit the data information to the modem. The Internet or cloud server transmits the data to the monitoring center or other mobile terminals.
[0106] The specific process of the comprehensive analysis provided by the comprehensive analysis module 6 in the embodiment of the present invention is:
[0107] The comprehensive analysis module receives the relevant data detected by the water quality detection module, the TDS monitoring module, the time monitoring module and the flow monitoring module. The water quality registration classification standard set by the fixed module is compared, and the corresponding water quality grade and filter element score are output.
[0108] The working principle of the present invention is as follows:
[0109] First, use the parameter setting module 1 to preset the water quality classification standard and other related parameters; the water quality detection module 2 uses the water quality monitor to detect the water quality; the TDS monitoring module 3 monitors the change of the TDS value of the water; the time monitoring module 4 monitors the usage time of the filter element The flow monitoring module 5 monitors the filtered water volume of the filter element through the flow meter; the comprehensive analysis module 6 receives the relevant data detected by the water quality detection module 2, the TDS monitoring module 3, the time monitoring module 4 and the flow monitoring module 5, and integrates the TDS quality and detection of the water quality. The water quality score is compared with the water quality registration classification standard set by parameter setting module 1, and the corresponding water quality grade and filter core score are output; a message reminds module 7 that when the filter core score is lower than the predetermined value When the normal threshold is set, the reminder device is used to remind the replacement of the filter element; the display module 8 displays the water quality detection value, TDS value, filter element usage time, filtration flow information, water quality grade and filter element score.
[0110] The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.
