A control method of a water purifier and a water purifier adopting the same

Abstract

A control method of a water purifier and a water purifier using the method, characterized in that the control method comprises the following steps: one, initialization setting; two, selecting a user age range ax; three, detecting the actual value bx of dx and TDS, and calculating the total amount of actual intake of minerals cx according to ax; four, judging whether cx is greater than the total amount of recommended intake of minerals ct, if yes, then down-regulating the current mineral retention rate ex, and circulating the step; if no, then executing step five; five, judging whether cx is equal to the total amount of recommended intake of minerals ct, if yes, then keeping the mineral retention rate ex unchanged, and returning to step four; if no, then up-regulating the mineral retention rate ex, and returning to step four. The advantages of the present application are that: through the differentiation of different ages, combined with the detection of drinking water volume and TDS, the total amount of actual intake of minerals cx is obtained, and the comparison between the total amount of actual intake of minerals cx and the total amount of recommended intake of minerals ct can realize the real-time adjustment of the mineral retention rate, so as to realize the real on-demand intake of minerals in water.

Description

TECHNICAL FIELD

[0001] The present application relates to a control method of a water purification device, in particular to a control method of a water purifier and a water purifier adopting the control method. BACKGROUND

[0002] Minerals are essential trace elements for the human body, which cannot be produced by the body itself and must be taken from the outside. With the increasing popularity of water purification products in people's daily life, the single water purification function can no longer meet the needs of some users. From the perspective of personal health, more and more users hope that the purified water is not only safe but also retains minerals.

[0003] However, in fact, different groups of people have different needs for the mineral content in water. For example, children and the elderly need to supplement relatively more minerals, and hope that the drinking water can retain an appropriate amount of minerals; while young people or strong people, because of good physical fitness and high requirements for the taste of water, hope that the ions in the water are as few as possible to ensure a better taste when drinking water.

[0004] Currently, there are some water purification devices on the market that can adjust the ion retention rate of water purification products according to the needs of users and the different water qualities in different places, so as to obtain water purification products with different mineral retention rates. For example, the Chinese patent application No. 202111182579.4 "Water purification based on water quality intelligent adjustment direct drinking water equipment" discloses a water purification process based on water quality intelligent adjustment direct drinking water equipment, which includes using an intelligent adjustment direct drinking water equipment to treat raw water; the specific treatment process is as follows: step 1, pretreatment of raw water: raw water enters the pretreatment system to pretreat the raw water; step 2, reprocessing of raw water. The present application adopts a mixed process of reverse osmosis and ultrafiltration, and mixes the first-level direct drinking water produced by the intelligent adjustment first-level treatment system with the second-level direct drinking water produced by the second-level treatment system to achieve the user's preset water conductivity, thereby obtaining high-quality direct drinking water rich in minerals and good in taste that meets the needs of the human body.

[0005] However, the water purifier in the above patent can only adjust and produce direct drinking water with pre-set parameters, and can only set one mineral retention rate each time, and cannot realize intelligent adjustment of the mineral retention rate of drinking water according to the age or physical condition of different users on the same water purifier. Therefore, in view of the above problems existing in the prior art, the existing water purifier products still need to be further optimized and improved. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide a control method for a water purifier that can intelligently control the retention rate of minerals in the water purification product, thereby enabling the water purifier to meet the daily health needs of different groups of people.

[0007] The second technical problem to be solved by the present application is to provide a water purifier that works with the above control method.

[0008] The technical solution adopted by the present application to solve the first technical problem is a control method for a water purifier, characterized in that the control method comprises the following steps:

[0009] Step one, program start, set initial mineral retention rate e0; according to different age ranges ax, preset the corresponding relationship table between different TDS values and recommended total mineral intake;

[0010] Step two, select the user age range ax;

[0011] Step three, detect the water intake dx at the current time point and the current detected TDS actual value bx, and calculate the current actual total mineral intake cx according to the selected user age range ax;

[0012] Step four, determine whether the current actual total mineral intake cx is greater than the recommended total mineral intake ct at the current time point, if yes, then lower the current mineral retention rate ex, and loop step four; if not, then execute the next step five;

[0013] Step five, determine whether the current actual total mineral intake cx is equal to the recommended total mineral intake ct at the current time point, if yes, then the current mineral retention rate ex remains unchanged, and return to step four; if not, then increase the current mineral retention rate ex, and return to step four.

[0014] Thus, by using the above control method for circulation, at the water purifier startup and use state, the sampling data is calculated and compared at each set fixed time point, the change of the mineral retention rate in the water consumed by the user can be determined at regular intervals, thereby realizing real-time adjustment of the mineral retention rate to better meet the drinking water health needs of different age groups.

[0015] As a preferred embodiment, the detection of the water intake dx and the TDS actual value bx at the current time point in step three can be achieved by a timed detection method to compare the detected data with the preset recommended data, i.e. at the set fixed time point, the actual cumulative water intake dx and the TDS actual value bx of the user at that fixed time point are detected.

[0016] As a further preferred, the fixed time point can be pre-set, such as setting three time points per day, respectively, 9 am, 12 noon and 9 pm.

[0017] As another preferred, as preferred, the detection of the current time point of the water taking amount dx and the TDS actual value bx in step three can also adopt a real-time detection method, that is, at each time of taking water, the actual cumulative water taking amount dx and the TDS actual value bx at that time are detected immediately. This real-time detection method adopts a linear comparison method. As long as the recommended total mineral intake c0 in the preselected period t0 is set, the recommended total mineral intake ct at any time point can be obtained directly through the linear relationship ct / tx=c0 / t0. Compared with the previous fixed time point setting method, this linear relationship comparison point selection method is more flexible and convenient in time selection, and the detection accuracy can be higher.

[0018] In order to facilitate counting and realize quantitative calculation of detection results, at the selected fixed time point, as preferred, the cumulative water taking times can be calculated, that is, the current time point water taking amount dx=d1+d2+d3+…+dn, wherein d1, d2, d3, …, dn are respectively the single water taking amount of the user from the first time to the nth time at the current time point, and n is a positive integer; the current actual mineral intake total amount cx=c1+c2+c3+…+cn, wherein c1, c2, …, cn are respectively the single mineral intake amount of the user from the first time to the nth time at the current time point, and n is a positive integer; the single water taking mineral intake amount ci=k×di×bx, wherein ci is the single mineral intake amount, di is the single water taking amount, i takes the value of 1, 2, …, n, and n is a positive integer; k is an adjustment coefficient; and bx is the current detected TDS actual value corresponding to each water taking amount.

[0019] In order to further improve the accuracy of the calculation results, as preferred, the k is a value obtained according to the human absorption rate, and the value range of k is: 0

[0020] As another preferred, another control method of the water purifier can also be adopted, characterized in that the control method comprises the following steps:

[0021] Step one, program start, initialization setting:

[0022] Set the initial mineral retention rate e0;

[0023] According to different age ranges ax, preset different corresponding relationship tables between TDS values and recommended total mineral intake amounts;

[0024] Step two, select the user age range ax;

[0025] Step three, detecting the water intake dx at the current time point and the current detected TDS actual value bx, and calculating the total amount of minerals actually ingested cx according to the selected user age bracket ax;

[0026] Step four, determining whether the total amount of minerals actually ingested cx is greater than the recommended total amount of minerals ct at the current time point, if yes, then reducing the current mineral retention rate ex, and continuing to Step five; if no, then executing Step eight;

[0027] Step five, determining whether the entire calculation period t0 is over, if yes, then executing Step six; if no, then returning to Step four;

[0028] Step six, determining whether the total amount of minerals actually ingested cx is greater than the total recommended amount of minerals c0 accumulated in the entire calculation period t0, if yes, then starting the next calculation period, reducing the initial mineral retention rate e0 by one bracket, and ending the program; if no, then executing Step seven;

[0029] Step seven, determining whether the total amount of minerals actually ingested cx is equal to the total recommended amount of minerals c0 accumulated in the entire calculation period t0, if yes, then keeping the initial mineral retention rate e0 unchanged, and ending the program; if no, then starting the next calculation period, increasing the initial mineral retention rate e0 by one bracket, and ending the program;

[0030] Step eight, determining whether the total amount of minerals actually ingested cx is equal to the recommended total amount of minerals ct at the current time point, if yes, then keeping the current mineral retention rate ex unchanged, and returning to Step five; if no, then increasing the current mineral retention rate ex, and returning to Step five.

[0031] In order to facilitate the quantification and calculation of the detection results, as a preferred, the water intake dx at the current time point = d1 + d2 + d3 + … + dn, wherein, d1, d2, d3, …, dn are respectively the single water intake of the user from the first time to the nth time at the current time point, and n is a positive integer; the total amount of minerals actually ingested cx = c1 + c2 + c3 + … + cn, wherein, c1, c2, …, cn are respectively the single ingested mineral amount of the user from the first time to the nth time at the current time point, and n is a positive integer; the single ingested mineral amount ci = k x di x bx, wherein, ci is the single ingested mineral amount, di is the single water intake, i takes the value of 1, 2, …, n, and n is a positive integer; k is an adjustment coefficient; and bx is the current detected TDS actual value corresponding to each water intake.

[0032] To further improve the calculation accuracy, as a further preferred option, k is a value obtained based on the human body absorption rate, and the value range of k is: 0 < k < 1.

[0033] Preferably, in step three, the detection of the water intake dx and the actual TDS value bx at the current time point can be achieved by using a timed detection method to compare the detection data with the preset recommended data. That is, when a fixed time point is reached, the user's actual cumulative water intake dx and the actual TDS value bx at that fixed time point are detected.

[0034] As a further preferred option, the fixed time points can be preset, such as setting three time points each day, namely 9:00 AM, 12:00 PM, and 9:00 PM.

[0035] As another preferred method, the detection of the water intake volume dx and the actual TDS value bx at the current time point in step three can also be performed using a real-time detection method. That is, the actual cumulative water intake volume dx and the actual TDS value bx of the user at each water intake moment are immediately detected. This real-time detection method uses a linear comparison approach. As long as the recommended total mineral intake c0 within the pre-selected period t0 is set, the recommended total mineral intake ct at any time point can be directly obtained through the linear relationship ct / tx = c0 / t0. Compared to the previous method of setting a fixed time point, this method of using a linear relationship comparison point is more flexible and convenient in selecting the detection time, and the detection accuracy can also be higher.

[0036] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a water purifier, including a water inlet, a purification device and a water outlet, characterized in that: the water path control of the water purifier from the water inlet through the purification device to the water outlet is operated by the control method described in the above claims.

[0037] Preferably, the purification device includes a pre-filter, a solenoid valve, a booster pump, and a composite filter connected in sequence by pipelines. The inlet is connected to the inlet of the pre-filter, and the outlet is connected to the outlet of the composite filter. The outlet includes a wastewater outlet equipped with a wastewater solenoid valve and a purified water outlet for user use.

[0038] To facilitate real-time TDS detection, preferably, a TDS detection device is also provided between the composite filter element and the booster pump.

[0039] To further improve the purification effect of drinking water, as a further preferred option, a post-filter cartridge is also provided before the purified water outlet of the composite filter cartridge.

[0040] To simplify the water connection to achieve balanced water outlet, as preferred, the composite filter core comprises at least two inner core assemblies, and the outlets of all the inner core assemblies are connected to the purified water outlet through a water mixing valve.

[0041] Compared with the prior art, the application has the advantages that: in the application, different ages are distinguished, and the drinking water amount detection, TDS detection at a set time point are combined, so as to obtain the actual total mineral intake cx, and according to the comparison with the preset recommended total mineral intake ct, the real-time adjustment of the mineral retention rate can be realized, so as to realize the real on-demand intake of minerals in water, and further meet the health needs of different groups of people; the scheme of the application is simple and easy to implement, without the need to change the structure of the existing equipment, only a simple TDS sensor and a drinking water amount detection sensor need to be added, so that the real-time detection of the total mineral intake can be realized, the user can grasp the drinking water quality state at any time, the degree of intelligence is higher, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a control method flow chart of the water purifier product of the embodiment of the application.

[0043] Figure 2 It is a control method flow chart of the water purifier product of the embodiment of the application.

[0044] Figure 3 It is a function structure block diagram of the water purifier product of the embodiment of the application. DETAILED DESCRIPTION

[0045] The application will be further described in detail below with reference to the embodiments of the drawings.

[0046] As shown in the drawings, Figure 3 The water purifier of the embodiment can adopt various existing purification equipment, and the water purifier comprises, from the water inlet to the water outlet, a pre-filter core, an electromagnetic valve, a booster pump, a TDS, a composite filter core, a water mixing valve and a post-filter core connected in sequence through pipelines, wherein the water inlet is connected to the inlet of the pre-filter core, the TDS is used for detecting the TDS value in water, the outlet of the composite filter core comprises a waste water outlet provided with a waste water electromagnetic valve and a purified water outlet for user use, the composite filter core comprises at least two inner core assemblies (an inner core assembly 1 and an inner core assembly 2), the outlets of all the inner core assemblies are connected to the purified water outlet through the water mixing valve, and in order to further improve the filtering effect, the purified water is further purified by the post-filter core and provided to the end customer for drinking. The function structure of the water purifier belongs to the conventional technology, and will not be described here.

[0047] The above water purifier of the present application can meet the daily demand of different people for the total amount of minerals needed to be taken in through drinking water by using the following two control methods to realize intelligent adjustment of the mineral retention rate in purified water.

[0048] Specifically, as shown in Figure 1 The first control method of the water purifier of the present application includes the following steps:

[0049] Step 1: Program starts, sets initial mineral retention rate e0; according to different age ranges ax, a preset corresponding relationship table between TDS value and recommended total amount of minerals to be taken in, see Table 1 below;

[0050]

[0051] Table 1

[0052] In the present application, the age range is divided into four ranges, i.e. 0-10 years old, 10-20 years old, 20-30 years old and above 30 years old. The recommended total amount of minerals to be taken in corresponding to each range in Table 1 can be a range of values.

[0053] Step 2: Select the user age range ax of the user.

[0054] Step 3: Detect the water intake amount dx at the current time point and the current detected TDS actual value bx, and calculate the current actual total amount of minerals to be taken in cx according to the selected user age range ax;

[0055] Considering that the user may take water several times before the fixed time point, in order to improve the calculation accuracy, the total amount of water taken before the selected fixed time point can be used for calculation. Specifically, the calculation of the actual total amount of minerals to be taken in cx is realized through the following steps ①-③:

[0056] ① Set the water intake amount dx at the current time point = d1+d2+d3+…+dn, wherein d1, d2, d3, …, dn are the single water intake amounts of the user from the first time to the nth time within the current time point, and n is a positive integer;

[0057] ② Single water intake mineral mass ci = k x di x bx, wherein ci is the single intake mineral mass, di is the single water intake amount, i takes the value of 1, 2, …, n, and n is a positive integer; bx is the current detected TDS actual value corresponding to each water intake amount; k is an adjustment coefficient, in order to further improve the accuracy of the calculation result, k is a value obtained according to the human absorption rate, and the value range of k is: 0

[0058] ③ Current actual total mineral intake cx = c1 + c2 + c3 + … + cn, wherein c1, c2, …, cn are single mineral intake of the user from the first time to the nth time, and n is a positive integer.

[0059] Thus, by using the above control method for circulation, in the state of starting use of the water purifier, data sampling calculation and comparison are performed at each set fixed time point, the change of the mineral retention rate in the drinking water of the user can be detected and found in a timely manner, and thus the real-time adjustment of the mineral retention rate can be realized according to the drinking water health needs of people of different ages.

[0060] The comparison between the calculated data and the preset recommended data is realized by using the timing detection method, that is, the recommended total mineral intake data in Table 1 is refined and divided into total minerals corresponding to several fixed time points set in advance, for example, three time points are set every day, which are 9 o'clock in the morning (t10), 12 o'clock at noon (t20) and 9 o'clock at night (t30), as shown in Table 2 below.

[0061]

[0062] Table 2

[0063] Therefore, at the above three fixed time points every day, the actual accumulated water intake dx and the TDS actual value bx are detected, and then the calculation results are compared with the recommended total mineral intake in Table 2.

[0064] Step four, judging whether the current actual total mineral intake cx is greater than the recommended total mineral intake ct at the corresponding current time point in Table 2, if yes, the current mineral retention rate ex is lowered, and the step four is returned; if no, the next step five is executed.

[0065] Step five, judging whether the current actual total mineral intake cx is equal to the recommended total mineral intake ct at the current time point, if yes, the current mineral retention rate ex remains unchanged, and the step four is returned; if no, the current mineral retention rate ex is raised, and the step four is returned.

[0066] The comparison between the calculated data and the preset recommended data can also be realized by using the real-time detection method, that is, when water is taken at any time point, the actual water intake dx and the TDS actual value bx of the user at the time point are detected, the single mineral intake ci = k × di × bx at the time point is calculated, wherein ci is the single mineral intake, di is the single water intake, bx is the current detected TDS actual value corresponding to the water intake, and k is an adjustment coefficient, which is a value obtained according to the human absorption rate, and the value range of k is 0 < k < 1.

[0067] The preset recommended data for the current time point can be obtained through linear comparison. As long as the recommended total mineral intake c0 within the pre-selected calculation period t0 (such as a week, a day, or several hours, etc.) is set, the recommended total mineral intake ct at any time point tx can be directly obtained through the linear relationship ct / tx=c0 / t0. As long as the user takes water at any time, the recommended total mineral intake ct at that time can be obtained, thereby realizing the comparison between the actual calculation result at that time and the recommended total mineral intake ct at that time.

[0068] Compared to setting several fixed time points for comparison, the linear comparison method can further subdivide the total mineral data corresponding to different age groups in Table 1 within the preset calculation period t0. This can obtain more linear and continuous comparison points, with stronger randomness of sampling points, and more diverse and comprehensive data for comparison, resulting in a more accurate final adjustment effect.

[0069] like Figure 2 The image shows a second control method for the water purifier described in this application. This second method is an improvement on the first control method and specifically includes the following steps:

[0070] Step 1: Start the program and initialize settings:

[0071] Set the initial mineral retention rate to e0;

[0072] Based on different age groups (ax), different TDS values ​​and corresponding tables of recommended total mineral intake are preset. The recommended mineral intake for different age groups under different TDS values ​​can be found in Table 1. These data are preset in the host computer through the program.

[0073] Step 2: Select the user's age range (ax). This step can be manually entered by the user.

[0074] Step 3: Detect the water intake dx at the current time point and the actual TDS value bx at the current time point. Calculate the total amount of minerals actually ingested at the current time point cx based on the selected user age range ax.

[0075] The calculation of the actual total mineral intake cx is still carried out in accordance with steps ①-③ of the first control method. The comparison between the calculation results and the recommended data can be carried out using the timed detection and comparison method mentioned in the first control method, or the real-time detection and comparison method.

[0076] Step 4: Determine whether the current actual total mineral intake cx is greater than the recommended total mineral intake ct at the current time point. If yes, lower the current mineral retention rate ex and continue to the next step, Step 5; otherwise, proceed to Step 8.

[0077] Step five, judge whether the whole calculation period t0 is over, if yes, then execute next step six; if no, then return to step four;

[0078] Step six, judge whether the current actual mineral intake total amount cx is greater than the cumulative recommended mineral intake total amount c0 in the whole calculation period t0, if yes, then the next calculation period starts, the initial mineral retention rate e0 is down one gear, and the program ends; if no, then execute next step seven;

[0079] Step seven, judge whether the current corresponding mineral intake total amount cx is equal to the cumulative recommended mineral intake total amount c0 in the whole calculation period t0, if yes, then the initial mineral retention rate e0 remains unchanged, and the program ends; if no, then the next calculation period starts, the initial mineral retention rate e0 is up one gear, and the program ends;

[0080] Step eight, judge whether the current actual mineral intake total amount cx is equal to the recommended mineral intake total amount ct at the current time point, if yes, then the current mineral retention rate ex remains unchanged, and returns to step five; if no, then the current mineral retention rate ex is up, and returns to step five.

[0081] In the second control method, a calculation period judgment is added, the actual mineral intake total amount cx is compared with the recommended mineral intake total amount c0 in the set calculation period, through the comparison result, the gear of the initial mineral retention rate e0 before the start of the next new calculation period is adjusted (i.e. according to the mineral intake of the user in the last period, the mineral retention rate e0 is appropriately adjusted to the most appropriate gear, so that it is better matched with the personal drinking water of the user), so that the excessive fluctuation of the mineral retention rate ex in real-time adjustment during use can be effectively avoided, and the stability and reliability of the equipment operation can be ensured.

[0082] In the present application, different ages are distinguished, and the drinking water amount detection and TDS detection at the set time point are combined, and then the actual mineral intake total amount cx is obtained, according to the comparison with the preset recommended mineral intake total amount ct, the real-time adjustment of the mineral retention rate can be realized, so as to realize the real on-demand intake of minerals in water, and then the health needs of different groups of people can be met.

Claims

1. A control method of a water purifier, characterized by, The control method comprises the following steps: Step one, program starts, set initial mineral retention rate e0; according to different age range ax, preset different TDS value and corresponding relationship table between recommended total mineral intake; Step two, select user age range ax; Step three, detect current time point water intake dx and current detected TDS actual value bx, calculate current actual total mineral intake cx according to selected user age range ax; Step four, judge whether current actual total mineral intake cx is greater than recommended total mineral intake ct at current time point, if yes, then lower current mineral retention rate ex, and return to step four; if not, then execute next step five; Step five, judge whether current actual total mineral intake cx is equal to recommended total mineral intake ct at current time point, if yes, then current mineral retention rate ex remains unchanged, and return to step four; if not, then increase current mineral retention rate ex, and return to step four.

2. The control method of the water purifier according to claim 1, characterized in that: The current time point water intake dx = d1 + d2 + d3 + … + dn, wherein, d1, d2, d3, …, dn are single water intake of the user from the first time to the nth time, and n is a positive integer; The current actual total mineral intake cx = c1 + c2 + c3 + … + cn, wherein, c1, c2, …, cn are single mineral intake of the user from the first time to the nth time at the current time point, and n is a positive integer; Single water intake mineral intake ci = k × di × bx, wherein, ci is single mineral intake, di is single water intake, i takes 1, 2, …, n, and n is a positive integer; k is an adjustment coefficient; bx is the current detected TDS actual value corresponding to each water intake.

3. The control method of the water purifier according to claim 2, characterized in that: The k is a value obtained according to human absorption rate, and the value range of k is: 0 < k < 1.

4. The control method of the water purifier according to claim 1, characterized in that: The detection of current time point water intake dx and TDS actual value bx in step three adopts a fixed time detection method, that is, when reaching a set fixed time point, the actual accumulated water intake dx and TDS actual value bx of the user at the fixed time point are detected.

5. The control method of the water purifier according to claim 4, characterized in that: The fixed time point is three time points set in each day, which are 9 o'clock in the morning, 12 o'clock in the noon and 9 o'clock in the evening.

6. The control method of the water purifier according to claim 1, characterized in that: The detection of current time point water intake dx and TDS actual value bx in step three adopts a real-time detection method, that is, when taking water each time, the actual accumulated water intake dx and TDS actual value bx of the user at the water taking time are detected immediately.

7. A control method of a water purifier, characterized by, The control method comprises the following steps: Step one, program starts, initialization setting: Set initial mineral retention rate e0; According to different age range ax, preset different TDS value and corresponding relationship table between recommended total mineral intake; Step two, select user age range ax; Step three, detect current time point water intake dx and current detected TDS actual value bx, calculate current actual total mineral intake cx according to selected user age range ax; Step four, judging whether the total amount of actual mineral intake cx is greater than the total amount of recommended mineral intake ct at the current time point, if yes, then the current mineral retention rate ex is lowered, and the next step five is executed; if no, then step eight is executed; Step five, judging whether the whole calculation period t0 is over, if yes, then the next step six is executed; if no, then step four is returned; Step six, judging whether the total amount of actual mineral intake cx is greater than the total amount of recommended mineral intake c0 accumulated in the whole calculation period t0, if yes, then the initial mineral retention rate e0 is lowered by one level at the beginning of the next calculation period, and the program ends; if no, then the next step seven is executed; Step seven, judging whether the total amount of actual mineral intake cx is equal to the total amount of recommended mineral intake c0 accumulated in the whole calculation period t0, if yes, then the initial mineral retention rate e0 remains unchanged, and the program ends; if no, then the initial mineral retention rate e0 is raised by one level at the beginning of the next calculation period, and the program ends; Step eight, judging whether the total amount of actual mineral intake cx is equal to the total amount of recommended mineral intake ct at the current time point, if yes, then the current mineral retention rate ex remains unchanged, and step five is returned; if no, then the current mineral retention rate ex is raised, and step five is returned.

8. The control method of the water purifier according to claim 7, characterized in that: The water intake amount dx at the current time point is d1+d2+d3+…+dn, wherein d1, d2, d3, …, dn are respectively the single water intake amount of the user from the first time to the nth time at the current time point, and n is a positive integer; The total amount of actual mineral intake cx at the current time point is c1+c2+c3+…+cn, wherein c1, c2, …, cn are respectively the single intake mineral amount of the user from the first time to the nth time at the current time point, and n is a positive integer; The single intake mineral amount ci is k×di×bx, wherein ci is the single intake mineral amount, di is the single water intake amount, i takes the value of 1, 2, …, n, and n is a positive integer; k is an adjustment coefficient; and bx is the current detected TDS actual value corresponding to each water intake amount.

9. The control method of the water purifier according to claim 8, characterized in that: The k is a value obtained according to the human absorption rate, and the value range of k is 0 10. The control method of the water purifier according to claim 7, characterized in that: The detection of the water intake amount dx and the TDS actual value bx at the current time point in step three adopts a fixed time point detection method, that is, when the fixed time point is reached, the actual accumulated water intake amount dx and the TDS actual value bx of the user at the fixed time point are detected.

11. The control method of the water purifier according to claim 10, characterized in that: The fixed time point is three time points set in each day, which are 9 o'clock in the morning, 12 o'clock at noon and 9 o'clock in the evening.

12. The control method of the water purifier according to claim 7, characterized in that: The detection of the water intake amount dx and the TDS actual value bx at the current time point in step three adopts a real-time detection method, that is, when each water intake is detected, the actual accumulated water intake amount dx and the TDS actual value bx of the user at the water intake time are detected.

13. A water purifier comprising an inlet, a purifying device and an outlet, characterized in that: The water path control from the water inlet to the water outlet of the water purifier through the purification device adopts the control method in any one of claims 1-12.

14. The water purifier according to claim 13, characterized in that: The purification device comprises a pre-filter, an electromagnetic valve, a booster pump and a composite filter connected in sequence, the water inlet is connected to the inlet of the pre-filter, the water outlet is connected to the outlet of the composite filter, and the water outlet comprises a waste water outlet provided with a waste water electromagnetic valve and a purified water outlet for user.

15. The water purifier according to claim 14, characterized in that: A TDS detection device is further arranged between the composite filter and the booster pump.

16. The water purifier according to claim 14, characterized in that: A post-filter is further arranged in front of the purified water outlet of the composite filter.

17. The water purifier of claim 14, wherein: The composite filter comprises at least two inner core assemblies, and the outlets of all the inner core assemblies are connected to the purified water outlet through a water mixing valve.

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