CN213771433U - System for setting residual usage amount of filter element - Google Patents
System for setting residual usage amount of filter element Download PDFInfo
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- CN213771433U CN213771433U CN202022186532.2U CN202022186532U CN213771433U CN 213771433 U CN213771433 U CN 213771433U CN 202022186532 U CN202022186532 U CN 202022186532U CN 213771433 U CN213771433 U CN 213771433U
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Abstract
The utility model belongs to the technical field of reverse osmosis water purifiers, in particular to a system for setting the residual usage amount of a filter element, which comprises a power supply for supplying power to the system, a control unit, a rotary encoder unit, a display unit and a confirmation unit, wherein the rotary encoder unit, the display unit and the confirmation unit are all connected with the control unit; the control unit detects the rotation direction and the rotation speed of the rotary encoder unit and controls the display unit to display the residual filter element usage and/or the change of the residual filter element usage according to the rotation direction and the rotation speed; and when the number displayed by the display unit is the residual usage amount of the filter element required to be set, the residual usage amount of the filter element required to be set is confirmed by the confirmation unit. Through the system, a user can set the residual usage amount of the filter element of the reverse osmosis water purifier according to local water quality and experience.
Description
Technical Field
The utility model belongs to the technical field of reverse osmosis water purification machine, concretely relates to system for set up filter core surplus use amount.
Background
At present, the service life of filter elements of reverse osmosis water purifiers of various manufacturers in the market is mostly default value set by factory, and users can not adjust the filter elements according to local water quality and experience.
SUMMERY OF THE UTILITY MODEL
The utility model provides a system for set up filter core surplus use amount, through this system, the user can set up the surplus use amount of reverse osmosis water purifier's filter core by oneself according to local quality of water and experience.
The utility model discloses an adopt following scheme to realize:
a system for setting the residual usage amount of a filter element comprises a power supply for supplying power to the system, a control unit, a rotary encoder unit, a display unit and a confirmation unit, wherein the rotary encoder unit, the display unit and the confirmation unit are all connected with the control unit;
the control unit detects the rotation direction and the rotation speed of the rotary encoder unit and controls the display unit to display the residual filter element usage and/or the change of the residual filter element usage according to the rotation direction and the rotation speed; and when the number displayed by the display unit is the residual usage amount of the filter element required to be set, the residual usage amount of the filter element required to be set is confirmed by the confirmation unit.
The system for setting the residual usage amount of the filter element of the present invention is further improved in that the rotary encoder unit includes a rotary encoder U6, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a first capacitor C1, and a second capacitor C2;
the rotary encoder U6 comprises a first pulse output pin, a second pulse output pin and a common pin; the common pin is grounded;
the first pulse output pin is respectively connected with one end of a thirteenth resistor R13 and one end of a fifteenth resistor R15; the other end of the thirteenth resistor R13 is connected with a power supply; the other end of the fifteenth resistor R15 is connected to a twenty-seventh pin of the control unit, and is configured to transmit the first level of the first pulse output pin and the common pin to the control unit, and the other end of the fifteenth resistor R15 is further connected to one end of a second capacitor C2; the other end of the second capacitor C2 is grounded;
the second pulse output pin is respectively connected with one end of a fourteenth resistor R14 and one end of a sixteenth resistor R16; the other end of the fourteenth resistor R14 is connected with a power supply; the other end of the sixteenth resistor R16 is connected to the thirtieth pin of the control unit, and is configured to transmit the second level of the second pulse output pin and the common pin to the control unit, and the other end of the sixteenth resistor R16 is further connected to one end of the first capacitor C1; the other end of the first capacitor C1 is grounded;
the control unit determines the rotation direction of the rotary encoder U6 according to the sequence of the first level or the second level from low level to high level; while the rotational speed of the rotary encoder U6 is determined by the time interval t during which the first level or the second level is high.
The system for setting the residual usage amount of the filter element of the utility model is further improved in that the display unit comprises a three-position nixie tube LED1, a second resistor R2, a third resistor R3, a fourth resistor R4, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10;
the three-digit nixie tube LED1 comprises three common pins for receiving the level transmitted by the control unit; the first common pin is connected with a seventeenth pin of the control unit; the second common pin is connected with a sixteenth pin of the control unit, and the third common pin is connected with a fifteen pin of the control unit;
a common e-section pin of the three-position nixie tube LED1 is connected with an eighteenth pin of the control unit through a sixth resistor R6; a common d-section pin of the three-position nixie tube LED1 is connected with a nineteenth pin of the control unit through a seventh resistor R7; a common dp section pin of the three-position nixie tube LED1 is connected with a twentieth pin of the control unit through an eighth resistor R8; a common c-section pin of the three-position nixie tube LED1 is connected with a twenty-first pin of the control unit through a ninth resistor R9; a common g-section pin of the three-position nixie tube LED1 is connected with a twenty-second pin of the control unit through a tenth resistor R10; a common b-section pin of the three-position nixie tube LED1 is connected with a thirty-second pin of the control unit through a second resistor R2; a common f-section pin of the three-bit nixie tube LED1 is connected with a twenty-sixth pin of the control unit through the third resistor R3; a common a-section pin of the three-position nixie tube LED1 is connected with a twenty-fifth pin of the control unit through a fourth resistor R4;
the level change of each section of pins of the three-position nixie tube LED1 combined with the common pin is used for displaying the filter element type and the residual usage amount of the filter element and/or the change of the residual usage amount of the filter element.
The system for setting the residual using amount of the filter element is further improved in that the display unit further comprises a lighting lamp and a first resistor R1; the three-digit nixie tube LED1 also has at least one common I-section pin, and the common I-section pin is connected with a thirty-one pin of the control unit through the first resistor R1 and is used for controlling the on/off of the illuminating lamp.
The system for setting the residual usage amount of the filter element of the utility model is further improved in that the confirmation unit comprises a four-foot key switch U5, a seventeenth resistor R17, an eighteenth resistor R18 and a fifth capacitor C5;
the normally closed contact of the four-foot key switch U5 is grounded; a normally open electric contact of the four-foot key switch U5 is respectively connected with one end of a seventeenth resistor R17 and one end of an eighteenth resistor R18, and the other end of the eighteenth resistor R18 is connected with a power supply; the other end of the seventeenth resistor R17 is connected to a fourth pin of the control unit, and is configured to output a level of a four-pin key switch U5 to the control unit, the other end of the seventeenth resistor R17 is further connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 is grounded; when the four-foot key switch U5 is in a pressed state, the control unit detects a low level; otherwise, a high level is detected.
The system for setting the residual using amount of the filter element is further improved in that the system further comprises a resetting unit and a selecting unit;
the reset unit and the selection unit are both connected with the control unit; entering a setting mode of the residual usage amount of the filter element through the resetting unit; and selecting the type of the filter element needing to set the residual using amount of the filter element through the selection unit.
The system for setting the residual using amount of the filter element is further improved in that the reset unit comprises a reset key and a twelfth resistor R12; the reset key is connected with a twenty-fourth pin of the control unit through the twelfth resistor R12 and is used for entering a setting mode of residual usage of the filter element.
The system for setting the residual using amount of the filter element is further improved in that the selection unit comprises a selection key and an eleventh resistor R11;
the selection key is connected with a twenty-third pin of the control unit through the eleventh resistor R11 and is used for selecting the type of the filter element needing to be provided with the residual use amount of the filter element.
The system for setting the residual using amount of the filter element is further improved in that the control unit further comprises a third capacitor C3, a fourth capacitor C4 and a first electrolytic capacitor EC 1;
the fourth capacitor C4 is connected in parallel with the first electrolytic capacitor EC 1; two ends of the fourth capacitor C4 are also connected to the second pin of the control unit and the sixth pin of the control unit respectively; one end of the first electrolytic capacitor EC1 is connected with a power supply, and the other end is grounded; one end of the third capacitor C3 is connected to the first pin of the control unit, and the other end is grounded.
It is right the utility model discloses a set up the further improvement part of the system of filter core surplus use amount lies in, the control unit is the singlechip.
Compared with the prior art, adopt above-mentioned scheme the beneficial effects of the utility model are that:
when the residual usage amount of the filter element needs to be set, a user rotates the rotary encoder unit, the control unit detects the rotation direction and the rotation speed of the rotary encoder unit, and controls the display unit to display the residual usage amount of the filter element and/or the digital change of the residual usage amount of the filter element according to the rotation direction and the rotation speed; when the number displayed by the display unit is the residual usage amount of the filter element required to be set, the residual usage amount of the filter element required to be set is confirmed through the confirmation unit, so that the setting of the residual usage amount of the filter element is completed, and a user can set the residual usage amount of the filter element of the reverse osmosis water purifier according to local water quality and experience.
Drawings
Fig. 1 is a block diagram of a system for setting a remaining usage amount of a filter element according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a control unit of a system for setting a remaining usage amount of a filter element according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a rotary encoder unit of a system for setting a remaining usage amount of a filter element according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a display unit of a system for setting a remaining usage amount of a filter element according to an embodiment of the present invention;
fig. 5 is a circuit diagram of a confirmation unit of a system for setting a remaining usage amount of a filter element according to an embodiment of the present invention.
In the figure: 1. a control unit; 2. a rotary encoder unit; 3. a display unit; 4. a confirmation unit; 5. a reset unit; 6. and a selection unit.
Detailed Description
In order to make the above objects, features, advantages, etc. of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides a system for setting the remaining usage amount of a filter element, comprising a power supply for supplying power to the system, a control unit 1, and a rotary encoder unit 2, a display unit 3 and a confirmation unit 4, all connected to the control unit 1;
the rotary encoder unit 2 can rotate, the control unit 1 detects the rotation direction and the rotation speed of the rotary encoder unit 2, and controls the display unit 3 to display the residual filter element usage amount and/or the change of the residual filter element usage amount according to the rotation direction and the rotation speed; when the number displayed by the display unit 3 is the filter element residual usage amount required to be set, the filter element residual usage amount required to be set is confirmed by the confirmation unit 4.
When the residual usage amount of the filter element needs to be set, a user rotates the rotary encoder unit 2, the control unit 1 detects the rotation direction and the rotation speed of the rotary encoder unit 2, and controls the display unit 3 to display the residual usage amount of the filter element and/or the digital change of the residual usage amount of the filter element according to the rotation direction and the rotation speed; when the number displayed by the display unit 3 is the residual usage amount of the filter element required to be set, the residual usage amount of the filter element required to be set is confirmed through the confirmation unit 4, so that the setting of the residual usage amount of the filter element is completed, and a user can set the residual usage amount of the filter element of the reverse osmosis water purifier according to local water quality and experience.
Preferably, the residual usage of the filter element required to be set is less than the maximum net water amount of the filter element.
For example, when the rotary encoder unit 2 is rapidly rotated, the number of the remaining usage amount of the filter element displayed by the display unit 3 is decreased or increased in units of 10 bits. When the rotary encoder unit 2 is slowly rotated, the number of the remaining usage amount of the filter element displayed by the display unit 3 is decreased or increased in units of 1 bit.
When the rotary encoder unit 2 is rotated counterclockwise, the number of the remaining usage amount of the filter element displayed by the display unit 3 is decreased progressively; when the rotary encoder unit 2 is rotated clockwise, the number of the remaining usage amount of the filter element displayed by the display unit 3 is incremented.
Further, as shown in fig. 3, the rotary encoder unit 2 includes a rotary encoder U6, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a first capacitor C1, and a second capacitor C2;
the rotary encoder U6 comprises a first pulse output pin B, a second pulse output pin A and a common pin C; the common pin C is grounded;
the first pulse output pin B is respectively connected with one ends of a thirteenth resistor R13 and a fifteenth resistor R15; the other end of the thirteenth resistor R13 is connected with a power supply; the other end of the fifteenth resistor R15 is connected to the twenty-seventh pin of the control unit 1, and is used for connecting the first pulse output pin B with the first level V of the common pin CBCTo the control unit 1; the other end of the fifteenth resistor R15 is further connected to one end of the second capacitor C2, and the other end of the second capacitor C2 is grounded.
Wherein the thirteenth resistor R13 is used to limit the current flowing into the rotary encoder U6; the fifteenth resistor R15 is used to limit the current flowing into the control unit 1; the second capacitor C2 acts as a filter.
The second pulse output pin A is respectively connected with one end of a fourteenth resistor R14 and one end of a sixteenth resistor R16; the other end of the fourteenth resistor R14 is connected with a power supply; the other end of the sixteenth resistor R16 is connected to the thirtieth pin of the control unit 1 for outputting the second level V of the second pulse output pin a and the common pin CACThe other end of the sixteenth resistor R16 is also connected with one end of the first capacitor C1 and is transmitted to the control unit 1; the other end of the first capacitor C1 is grounded;
the fourteenth resistor R14 is used for limiting the current flowing into the rotary encoder U6; the sixteenth resistor R16 is used to limit the current flowing into the control unit 1; the first capacitor C1 acts as a filter.
The control unit 1 passes a first level VBCOr a second level VACDetermining the rotation direction of the rotary encoder U6 according to the sequence of changing low level into high level; while passing through the first level VBCOr a second level VACThe time interval t, at which the high level occurs, determines the rotational speed of the rotary encoder U6.
The first level V is set during the rotation of the rotary encoder U6 by the userBCThe pulse signal passes through a fifteenth resistor R15 and then is transmitted to a twenty-seventh pin of the control unit 1, so that the control unit 1 can detect the first level V in real timeBCA change in (c); while a second level VACThe pulse signal passes through a sixteenth resistor R16 and then is transmitted to a thirtieth pin of the control unit 1, so that the control unit 1 can detect a second level V in real timeACA change in (c).
When the rotary encoder U6 is in a stationary state, i.e., the rotary encoder U6, the first level VBCAnd a second level VACAre all low level if the first level VBCOr a second level VACWhen the level changes from low level to high level, it indicates that the rotary encoder U6 is rotating, and the first level V is determined in this embodimentBCOr a second level VACThe rotation direction of the rotary encoder U6 is determined by the order of transition to high. The method specifically comprises the following steps: if the second level VACWhen the level is changed to high level, the rotary encoder U6 is rotated clockwise; if the first level VBCFirst goes high, indicating that the rotary encoder U6 is rotating counterclockwise.
In addition, the first level V may be determined in the present embodimentBCOr a second level VACThe time interval t during which the high level occurs determines the rotational speed of the rotary encoder U6, specifically: the control unit 1 judges whether the time interval t is smaller than a time threshold value, and if so, determines that the rotary encoder U6 is in a fast rotation state; if not, it is determined that the rotary encoder U6 is in a slow rotation state.
For example, in a specific embodiment where the rotary encoder U6 has 15 pulses output per 360 ° rotation, the control unit 1 may determine the rotational speed of the rotary encoder U6 by detecting the time interval of two pulses output by the rotary encoder U6.
Further, as shown in fig. 2 and 4, the display unit 3 includes a three-digit nixie tube LED1, a second resistor R2, a third resistor R3, a fourth resistor R4, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a tenth resistor R10;
the three-digit nixie tube LED1 includes three common pins for receiving the level transmitted by the control unit 1; wherein the first common pin COM1 is connected with the seventeenth pin P3.2/COM3 of the control unit 1; the second common pin COM2 is connected with a sixteenth pin P3.3/COM4 of the control unit 1, and the third common pin COM3 is connected with a fifteenth pin P3.4/COM5/SEG28/AN4 of the control unit 1;
a common e-section pin of the three-bit nixie tube LED1 is connected with an eighteenth pin P3.1/COM2 of the control unit 1 through a sixth resistor R6; a common d-section pin of the three-position nixie tube LED1 is connected with a nineteenth pin P3.0/COM1 of the control unit 1 through a seventh resistor R7; a common dp segment pin of the three-bit nixie tube LED1 is connected with a twentieth pin P1.0/INT44/SEG1/TK1/TDO of the control unit 1 through an eighth resistor R8; a common c-section pin of the three-bit nixie tube LED1 is connected with a twenty-first pin P1.1/INT45/SEG2/TK2/TMS of the control unit 1 through a ninth resistor R9; a common g-segment pin of the three-bit nixie tube LED1 is connected with a twenty-second pin P1.2/INT46/SEG3/TK3/TDI of the control unit 1 through a tenth resistor R10; a common b-segment pin of the three-digit nixie tube LED1 is connected with a thirty-second pin SEG16/P2.7 of the control unit 1 through a second resistor R2; a common f-segment pin of the three-position nixie tube LED1 is connected with a twenty-sixth pin TK7/SEG7/P1.6 of the control unit 1 through a third resistor R3; a common a-segment pin of the three-position nixie tube LED1 is connected with a twenty-fifth pin TK6/SEG6/P1.5 of the control unit 1 through a fourth resistor R4;
the level change of each section pin of the three-position nixie tube LED1 combined with the common pin is used for displaying the filter element type and the filter element residual using amount and/or the filter element residual using amount.
The nixie tube is actually formed by forming 8 shapes by seven luminous tubes, the number of the added decimal points is 8, and the sections are respectively represented by letters a, b, c, d, e, f, g and dp.
In this embodiment, the dp segment represents icons of three filter elements, i.e., a VPC icon, a C icon, and an RO icon, and the VPC icon, the C icon, or the RO icon can be turned on or off by controlling a common dp segment pin of the three-digit nixie tube LED 1. By controlling the common a section, the common b section, the common c section, the common d section, the common e section, the common f section and/or the common g section of the three-position nixie tube LED1 and combining the level change of the first common pin COM1, the second common pin COM2 and/or the third common pin COM3, the three-position nixie tube LED1 can display the type of the filter element and be used for displaying the residual usage amount of the filter element and/or the change of the residual usage amount of the filter element.
The second resistor R2, the third resistor R3, the fourth resistor R4, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 are all used for limiting the current flowing into the control unit 1.
Preferably, for illumination, in this embodiment, the display unit 3 further includes an illumination lamp, the first resistor R1; the three-digit nixie tube LED1 also has at least one common I-segment pin, and the common I-segment pin is connected with a thirty-first pin SEG15/P2.6 of the control unit 1 through a first resistor R1 and is used for controlling the on/off of the illuminating lamp. The specific illuminating lamp is a 100L illuminating lamp.
Further, as shown in fig. 5, the confirmation unit 4 includes a four-pin key switch U5, a seventeenth resistor R17, an eighteenth resistor R18 and a fifth capacitor C5;
the normally closed contact of the four-pin key switch U5 is grounded; the normally open electric shock of four-pin key switch U5 is connected with seventeenth resistance R17, eighteenth resistance R18's one end respectively, the other end of eighteenth resistance R18 is connected with the power, the other end of seventeenth resistance R17 is connected with control circuit 1's fourth pin for give control unit 1 with four-pin key switch U5's level, the other end of seventeenth resistance R17 still is connected with the one end of fifth electric capacity C5, the other end ground connection of fifth electric capacity C5.
When the four-pin key switch U5 is in the pressed state, the fourth pin of the control unit 1 detects a low level; otherwise, a high level is detected.
The eighteenth resistor R18 is used for limiting the current flowing to the four-pin key switch U5; a seventeenth resistor R17 for limiting the current to the control unit 1; the fifth capacitor C5 acts as a filter.
The four-foot key switch U5 makes one transition of the signal each time it is pressed. Only two sets of pins (i.e., normally closed contacts) are connected when not depressed, and four pins are connected together after depression. The working principle of the four-pin push-button switch is almost the same as that of a common push-button switch, and the four-pin push-button switch is formed by combining a normally open contact and a normally closed contact; when this pressure is removed, the original normally closed contact is restored, i.e. the so-called open. The pressing force is the action of opening and closing the button by using our hand.
When the four-foot key switch U5 is pressed, the confirmation circuit of the confirmation unit 4 is turned on, and at the same time, the control unit 1 detects that the level of the four-foot key switch U5 is low; on the contrary, the confirming circuit of the confirming unit 4 is turned off, and the control unit 1 detects that the level is high, so as to confirm the set usage amount of the filter element.
For example, when the number displayed by the display unit 3 is the remaining usage amount of the filter element required to be set, the user presses the four-foot key switch U5, and the control unit 1 detects a low level; when the four-foot key switch U5 is released, the control unit 1 detects a high level again; when the control unit 1 detects a low level, the control unit 1 saves the filter element residual usage amount required to be set.
Further, the system further comprises a reset unit 5 and a selection unit 6;
the reset unit 5 and the selection unit 6 are both connected with the control unit 1; entering a setting mode of the residual usage amount of the filter element through a resetting unit 5; the selection unit 6 selects the type of the filter element for which the remaining usage amount of the filter element is to be set.
Preferably, the reset unit 5 includes a reset key and a twelfth resistor R12;
the reset key is connected with a twenty-fourth pin of the control unit 1 through a twelfth resistor R12, and is used for entering a setting mode of residual usage of the filter element. Wherein the twelfth resistor R12 is used to limit the current to the control unit 1. When the user needs to set the residual usage amount of the filter element, the user can press the reset key.
Preferably, the setting mode of the residual usage amount of the filter element is entered by long pressing of a reset key. Wherein the time of the long press may be 3 s. After entering the setting mode of the residual usage amount of the filter element, the type of the filter element needing to be set is selected by operating the selection unit 6.
Preferably, the selection unit 6 comprises a selection key and an eleventh resistor R11;
the selection key is connected with a twenty-third pin of the control unit 1 through an eleventh resistor R11 and is used for selecting the type of the filter element needing to set the residual using amount of the filter element, wherein the eleventh resistor R11 is used for limiting the current flowing to the control unit 1. Specifically, the type of the filter element of which the residual usage amount of the filter element needs to be set is selected by pressing a selection key. For example, by pressing a selection key for a short time, the control unit 1 controls to turn on one of the icons representing VPC, RO or C, and to turn off the other two icons, for example, the VPC icon and the C icon, and the RO icon by adjusting the levels of the three common pins transmitted to the nixie LED 1; then, the user rotates the rotary encoder U6, and the control unit 1 controls each section of pins of the nixie tube LED1 to set the residual usage amount of the RO filter element and flicker; finally, the setting of the remaining usage amount of the RO cartridge is completed by the operation confirmation unit 4.
Preferably, the setting mode of the residual using amount of the filter element is automatically exited when no operation is carried out after the time threshold value is exceeded.
Further, the control unit 1 further comprises a third capacitor C3, a fourth capacitor C4 and a first electrolytic capacitor EC 1;
the fourth capacitor C4 is connected in parallel with the first electrolytic capacitor EC 1; two ends of the fourth capacitor C4 are also connected to the second pin VSS of the control unit 1 and the sixth pin VDD of the control unit 1, respectively; one end of the first electrolytic capacitor EC1 is connected with a power supply, and the other end is grounded; one end of the third capacitor C3 is connected to the first pin C/INT3/P0.7 of the control unit 1, and the other end is grounded.
Wherein the fourth capacitor C4 and the first electrolytic capacitor EC1 both function as a filter, wherein the first electrolytic capacitor EC1 is used for filtering lower frequency waves; the fourth capacitor C4 is used for filtering the higher frequency wave; the third capacitor C3 is used to adjust the sensitivity of the touch key.
Further, the control unit 1 further includes a fifth resistor R5, and the eleventh pin P4.0/INT40/AN0/SWE of the control unit 1 is connected to the emulator through the fifth resistor R5 for the programming.
Further, the control unit 1 is a single chip microcomputer, preferably an SH79F9260 single chip microcomputer.
The specific operation process of this embodiment is as follows:
take the example of the clockwise slow rotation rotary encoder U6:
firstly, pressing a reset key for 3s for a long time, and entering a filter element service life setting mode;
then, a selection key is pressed for a short time, the type of the filter core needing to set the residual use amount of the filter core is selected, for example, the residual use amount of the VPC filter core is selected to be set, and at the moment, the LED1 displays the residual use amount of the VPC filter core and flickers;
secondly, the rotary encoder U6 is rotated clockwise, and after the control unit 1 detects that the first level and the second level are low levels, the second level is changed to high level; and the time interval t of the second level being converted into the high level is detected to be greater than the preset time interval, then the fact that the user is rotating the rotary encoder U6 slowly is judged;
at the moment, the number of the residual usage amount of the filter element displayed by the display screen LED1 is increased progressively by 1 bit;
when the number displayed by the display screen LED1 is the filter element remaining usage amount required to be set, the user presses the enter key U5, the control unit 1 detects a low level through the fourth pin, and the control unit 1 stores the filter element remaining usage amount required to be set, so that the setting of the remaining usage amount of the VPC filter element is completed.
Take the example of a clockwise fast rotary encoder U6:
firstly, pressing a reset key for 3s for a long time, and entering a filter element service life setting mode;
then, a selection key is pressed for a short time, the type of the filter core needing to set the residual use amount of the filter core is selected, for example, the residual use amount of the VPC filter core is selected to be set, and at the moment, the LED1 displays the residual use amount of the VPC filter core and flickers;
secondly, the rotary encoder U6 is rotated clockwise, and after the control unit 1 detects that the first level and the second level are low levels, the second level is changed to high level; and the time interval t of the second level being converted into the high level is detected to be smaller than the preset time interval, then the fact that the user is rotating the rotary encoder U6 rapidly is judged;
at the moment, the number of the residual usage amount of the filter element displayed by the display screen LED1 is increased progressively by 10 units;
when the number displayed by the display screen LED1 is the filter element remaining usage amount required to be set, the user presses the enter key U5, the control unit 1 detects a low level through the fourth pin, and the control unit 1 stores the filter element remaining usage amount required to be set, so that the setting of the remaining usage amount of the VPC filter element is completed.
Take the example of a counterclockwise slow rotation rotary encoder U6:
firstly, pressing a reset key for 3s for a long time, and entering a filter element service life setting mode;
then, a selection key is pressed for a short time, the type of the filter core needing to set the residual use amount of the filter core is selected, for example, the residual use amount of the VPC filter core is selected to be set, and at the moment, the LED1 displays the residual use amount of the VPC filter core and flickers;
secondly, the rotary encoder U6 is rotated counterclockwise, and when the control unit 1 detects that the first level and the second level are low levels, the first level is changed to a high level; and the time interval t of the first level being converted into the high level is detected to be greater than the preset time interval, then the fact that the user is rotating the rotary encoder U6 slowly is judged;
at the moment, the number of the residual usage amount of the filter element displayed by the display screen LED1 is decreased progressively by 1 unit;
when the number displayed by the display screen LED1 is the filter element remaining usage amount required to be set, the user presses the enter key U5, the control unit 1 detects a low level through the fourth pin, and the control unit 1 stores the filter element remaining usage amount required to be set, so that the setting of the remaining usage amount of the VPC filter element is completed.
Take the counter-clockwise fast rotation rotary encoder U6 as an example:
firstly, pressing a reset key for 3s for a long time, and entering a filter element service life setting mode;
then, a selection key is pressed for a short time, the type of the filter core needing to set the residual use amount of the filter core is selected, for example, the residual use amount of the VPC filter core is selected to be set, and at the moment, the LED1 displays the residual use amount of the VPC filter core and flickers;
secondly, the rotary encoder U6 is rotated counterclockwise, and when the control unit 1 detects that the first level and the second level are low levels, the first level is changed to a high level; and the time interval t of the first level being converted into the high level is detected to be smaller than the preset time interval, the fact that the user is rotating the rotary encoder U6 quickly is judged;
at the moment, the number of the residual usage amount of the filter element displayed by the display screen LED1 is decreased progressively in a unit of 10 bits;
when the number displayed by the display screen LED1 is the filter element remaining usage amount required to be set, the user presses the enter key U5, the control unit 1 detects a low level through the fourth pin, and the control unit 1 stores the filter element remaining usage amount required to be set, so that the setting of the remaining usage amount of the VPC filter element is completed.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the described parent features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A system for setting the residual usage amount of a filter element is characterized by comprising a power supply for supplying power to the system, a control unit (1), a rotary encoder unit (2), a display unit (3) and a confirmation unit (4), wherein the rotary encoder unit (2), the display unit (3) and the confirmation unit are all connected with the control unit (1);
the rotary encoder unit (2) can rotate, and the control unit (1) detects the rotation direction and the rotation speed of the rotary encoder unit (2) and controls the display unit (3) to display the residual filter element usage and/or the change of the residual filter element usage according to the rotation direction and the rotation speed; and when the number displayed by the display unit (3) is the residual usage amount of the filter element required to be set, the residual usage amount of the filter element required to be set is confirmed by the confirmation unit (4).
2. The system for setting the residual usage amount of a filter cartridge as recited in claim 1, wherein the rotary encoder unit (2) comprises a rotary encoder U6, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a first capacitor C1, and a second capacitor C2;
the rotary encoder U6 comprises a first pulse output pin, a second pulse output pin and a common pin; the common pin is grounded;
the first pulse output pin is respectively connected with one end of a thirteenth resistor R13 and one end of a fifteenth resistor R15; the other end of the thirteenth resistor R13 is connected with a power supply; the other end of the fifteenth resistor R15 is connected to a twenty-seventh pin of the control unit (1), and is configured to transmit the first level of the first pulse output pin and the common pin to the control unit (1), and the other end of the fifteenth resistor R15 is further connected to one end of a second capacitor C2; the other end of the second capacitor C2 is grounded;
the second pulse output pin is respectively connected with one end of a fourteenth resistor R14 and one end of a sixteenth resistor R16; the other end of the fourteenth resistor R14 is connected with a power supply; the other end of the sixteenth resistor R16 is connected with a thirtieth pin of the control unit (1) and is used for transmitting the second level of the second pulse output pin and the common pin to the control unit (1), and the other end of the sixteenth resistor R16 is also connected with one end of a first capacitor C1; the other end of the first capacitor C1 is grounded;
the control unit (1) determines the rotation direction of the rotary encoder U6 according to the sequence of the first level or the second level from low level to high level; while the rotational speed of the rotary encoder U6 is determined by the time interval t during which the first level or the second level is high.
3. The system for setting the residual usage amount of the filter cartridge as recited in claim 1, wherein the display unit (3) comprises a three-position nixie tube LED1, a second resistor R2, a third resistor R3, a fourth resistor R4, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10;
the three-digit nixie tube LED1 comprises three common pins for receiving the level transmitted by the control unit (1); the first common pin is connected with a seventeenth pin of the control unit (1); the second common pin is connected with a sixteenth pin of the control unit (1), and the third common pin is connected with a fifteen pin of the control unit (1);
a common e-section pin of the three-position nixie tube LED1 is connected with an eighteenth pin of the control unit (1) through a sixth resistor R6; a common d-section pin of the three-position nixie tube LED1 is connected with a nineteenth pin of the control unit (1) through a seventh resistor R7; a common dp section pin of the three-bit nixie tube LED1 is connected with a twentieth pin of the control unit (1) through an eighth resistor R8; a common c-section pin of the three-bit nixie tube LED1 is connected with a twenty-first pin of the control unit (1) through a ninth resistor R9; a common g-section pin of the three-bit nixie tube LED1 is connected with a twenty-second pin of the control unit (1) through a tenth resistor R10; a common b-section pin of the three-bit nixie tube LED1 is connected with a thirty-second pin of the control unit (1) through a second resistor R2; a common f-section pin of the three-bit nixie tube LED1 is connected with a twenty-sixth pin of the control unit (1) through the third resistor R3; a common a-section pin of the three-position nixie tube LED1 is connected with a twenty-fifth pin of the control unit (1) through a fourth resistor R4;
the level change of each section of pins of the three-position nixie tube LED1 combined with the common pin is used for displaying the filter element type and the residual usage amount of the filter element and/or the change of the residual usage amount of the filter element.
4. The system for setting the residual usage amount of a filter cartridge as recited in claim 3, wherein the display unit (3) further comprises an illumination lamp, a first resistor R1; the three-position nixie tube LED1 is also provided with at least one common I-section pin, and the common I-section pin is connected with a thirty-one pin of the control unit (1) through the first resistor R1 and is used for controlling the on/off of an illuminating lamp.
5. The system for setting the residual usage amount of filter cartridge as recited in claim 1, wherein the confirmation unit (4) comprises a four-foot key switch U5, a seventeenth resistor R17, an eighteenth resistor R18, a fifth capacitor C5;
the normally closed contact of the four-foot key switch U5 is grounded; a normally open electric contact of the four-foot key switch U5 is respectively connected with one end of a seventeenth resistor R17 and one end of an eighteenth resistor R18, and the other end of the eighteenth resistor R18 is connected with a power supply; the other end of the seventeenth resistor R17 is connected to a fourth pin of the control unit (1) and is used for outputting the level of a four-pin key switch U5 to the control unit (1), the other end of the seventeenth resistor R17 is also connected to one end of the fifth capacitor C5, and the other end of the fifth capacitor C5 is grounded; when the four-foot key switch U5 is in a pressed state, the control unit (1) detects a low level; otherwise, a high level is detected.
6. The system for setting the residual usage amount of a filter cartridge according to any one of claims 1 to 5, further comprising a reset unit (5) and a selection unit (6);
the reset unit (5) and the selection unit (6) are both connected with the control unit (1); entering a setting mode of the residual usage amount of the filter element through the resetting unit (5); the type of the filter element needing to set the residual using amount of the filter element is selected through the selection unit (6).
7. The system for setting the residual usage of filter cartridge as recited in claim 6, characterized in that the reset unit (5) comprises a reset key and a twelfth resistor R12;
the reset key is connected with a twenty-fourth pin of the control unit (1) through the twelfth resistor R12 and is used for entering a setting mode of residual usage of the filter element.
8. System for setting the residual use of filter cartridges as in claim 6, characterized in that the selection unit (6) comprises a selection key and an eleventh resistor R11;
the selection key is connected with a twenty-third pin of the control unit (1) through the eleventh resistor R11 and is used for selecting the type of the filter element needing to be provided with the residual use amount of the filter element.
9. System for setting the residual use of filter cartridges as in claim 6, characterized in that the control unit (1) further comprises a third capacitor C3, a fourth capacitor C4 and a first electrolytic capacitor EC 1;
the fourth capacitor C4 is connected in parallel with the first electrolytic capacitor EC 1; two ends of the fourth capacitor C4 are also connected with the second pin of the control unit (1) and the sixth pin of the control unit (1) respectively; one end of the first electrolytic capacitor EC1 is connected with a power supply, and the other end is grounded; one end of the third capacitor C3 is connected with the first pin of the control unit (1), and the other end is grounded.
10. The system for setting the residual usage amount of a filter element according to claim 9, wherein the control unit (1) is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186532.2U CN213771433U (en) | 2020-09-29 | 2020-09-29 | System for setting residual usage amount of filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186532.2U CN213771433U (en) | 2020-09-29 | 2020-09-29 | System for setting residual usage amount of filter element |
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| Publication Number | Publication Date |
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| CN213771433U true CN213771433U (en) | 2021-07-23 |
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| CN202022186532.2U Active CN213771433U (en) | 2020-09-29 | 2020-09-29 | System for setting residual usage amount of filter element |
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| CN (1) | CN213771433U (en) |
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