CN114033003A - Automatic induction flushing device and control method thereof - Google Patents
Automatic induction flushing device and control method thereof Download PDFInfo
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- CN114033003A CN114033003A CN202111459091.1A CN202111459091A CN114033003A CN 114033003 A CN114033003 A CN 114033003A CN 202111459091 A CN202111459091 A CN 202111459091A CN 114033003 A CN114033003 A CN 114033003A
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 59
- 230000006698 induction Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 127
- 238000001914 filtration Methods 0.000 claims description 62
- 238000004140 cleaning Methods 0.000 claims description 52
- 239000012459 cleaning agent Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000002372 labelling Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
- E03D5/105—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl touchless, e.g. using sensors
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
- E03D2201/40—Devices for distribution of flush water inside the bowl
Abstract
The invention discloses an automatic induction flusher and a control method thereof, wherein the automatic induction flusher comprises a first detection module, a second detection module and a third detection module, wherein the first detection module is used for acquiring capacitance data of a flushing module, calculating a derivative value of the capacitance data at each moment relative to time to obtain a detection curve, and determining a maximum value on the detection curve and a target moment corresponding to the maximum value; and the second detection module is used for acquiring the target voltage of the first detection module at the target moment when the maximum value is determined to be larger than the preset threshold value, and controlling the flushing module to open when the target voltage is determined to be smaller than the preset voltage. Based on capacitive sensing technology, through the touch of user's finger, realize the accurate control to the hydrophone, response speed is fast to the jam-proof can the reinforce, it is more intelligent.
Description
Technical Field
The invention relates to the technical field of flushing devices, in particular to an automatic induction flushing device and a control method thereof.
Background
Along with the continuous development of intelligent science and technology, squatting pans and toilet bowls are also more and more intelligent. The design of pressing the water flushing key is mostly adopted in the prior art, so that the operation is inconvenient, the intelligence is not enough, and the comfort requirement of a user cannot be met.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the first objective of the present invention is to provide an auto-induction water flushing device, which is based on a capacitive sensing technology, and realizes accurate control of the water flushing device through the touch of a user finger, and has the advantages of high response speed, strong interference prevention performance, more intelligence and satisfaction of the comfort requirements of the user.
The second purpose of the invention is to provide a control method of the automatic induction flushing device.
In order to achieve the above object, a first embodiment of the present invention provides an automatic induction flushing device, including:
the first detection module is used for acquiring the capacitance data of the flushing module, calculating the derivative value of the capacitance data at each moment with respect to time to obtain a detection curve, and determining the maximum value on the detection curve and a target moment corresponding to the maximum value;
and the second detection module is used for acquiring the target voltage of the first detection module at the target moment when the maximum value is determined to be larger than the preset threshold value, and controlling the flushing module to open when the target voltage is determined to be smaller than the preset voltage.
According to some embodiments of the invention, further comprising:
the setting module is used for setting the initial data number A and the additional data number B before the first detection module respectively calculates the derivative value of the capacitance data at each moment relative to time; grouping the capacitance data according to the number of the initial data and the number of the additional data to obtain a plurality of combinations, wherein the number of the capacitance data in each combination is equal;
a first filtering module to:
determining A + B data according to the arrangement sequence of the capacitance data in the first combination, and filtering the first combination to obtain a first filtering combination;
acquiring A pieces of capacitance data after the first combination, obtaining a second combination according to the last B pieces of data in the first combination and the A pieces of capacitance data after the first combination, and filtering the second combination to obtain a second filtering combination;
a first determining module, configured to determine a trend of change in capacitance data between the first filtering combination and the second filtering combination;
a second filtering module to:
when the change trend is determined to be increasing, calculating the first filtering combination and the second filtering combination based on a preset weighted recursive filtering algorithm to obtain first target data;
when the change trend is determined to be decreasing, calculating the first filtering combination and the second filtering combination based on a preset median filtering algorithm to obtain second target data;
the first detection module calculates a derivative value of the first target data or the second data with respect to time.
According to some embodiments of the invention, further comprising:
the infrared detection module is used for carrying out first detection on a preset area after the flushing module executes an opening action to obtain a first detection result;
the laser detection module is used for carrying out second detection on the preset area after the infrared detection module carries out first detection to obtain a second detection result;
the second determining module is used for controlling the foreign matter detecting module to start working when the preset area is determined to have no human body according to the first detecting result and the second detecting result;
the foreign matter detection module is used for detecting whether foreign matters exist in the bedpan after the flushing module performs the opening action;
and the flushing module is used for opening again when the foreign matter detection module determines that foreign matters exist in the bedpan.
According to some embodiments of the invention, the flush module comprises a capacitive sensor.
According to some embodiments of the invention, further comprising:
the pressing module is used for pressing a switch of the cleaning bottle to extrude the cleaning agent when the flushing module is opened;
the mixing module is used for mixing the cleaning agent and water to obtain a mixed solution; and flushing the bedpan according to the mixed solution.
According to some embodiments of the invention, the preset threshold is a derivative value of capacitance data acquired when the first detection module is inductively triggered with respect to time; the preset voltage is a voltage value obtained when the first detection module is not triggered by induction.
According to some embodiments of the invention, further comprising:
the third detection module is used for detecting a first capacitance parameter of the capacitive sensor in a non-touch state and a second capacitance parameter of the capacitive sensor in a touch state;
the third determining module is used for determining a capacitance difference value between the first capacitance parameter and the second capacitance parameter, comparing the capacitance difference value with a preset capacitance difference value, and when the capacitance difference value is determined to be larger than the preset capacitance difference value, indicating that the capacitance sensor is qualified; otherwise, the capacitive sensor is not qualified.
According to some embodiments of the invention, further comprising:
and the dose detection module is arranged on the cleaning bottle and used for acquiring the dose of the cleaning agent in the cleaning bottle and sending out a second alarm prompt when the dose is determined to be smaller than the preset dose.
In one embodiment, the method further comprises:
a data cleansing module to:
before the first detection module calculates the derivative value of the capacitance data with respect to time at each moment, the data cleaning of the capacitance data is performed, and the method specifically includes:
reading the capacitance data and determining a data table to be cleaned;
traversing the data table to be cleaned, and labeling each piece of data to be cleaned in the data table to be cleaned;
classifying the data to be cleaned in the data table to be cleaned according to the labels to obtain a plurality of cleaning sets; determining the classification attribute of each cleaning set, and determining the cleaning interval of each cleaning set according to the classification attribute;
and extracting corresponding data cleaning rules according to the cleaning intervals, and cleaning the data to be cleaned in the corresponding cleaning set according to the data cleaning rules.
In order to achieve the above object, a second embodiment of the present invention provides a control method for an auto-induction flushing device, including:
acquiring capacitance data of a flushing module, and calculating a derivative value of the capacitance data at each moment with respect to time to obtain a detection curve; determining a maximum value on the detection curve and a target time corresponding to the maximum value;
and when the maximum value is determined to be larger than a preset threshold value, acquiring the target voltage of the first detection module at a target moment, and when the target voltage is determined to be smaller than the preset voltage, controlling the flushing module to open.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of an auto-induction flusher according to one embodiment of the present invention;
FIG. 2 is a block diagram of an auto-induction flusher according to yet another embodiment of the present invention;
fig. 3 is a flow chart of a method of controlling an auto-induction flusher, according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, a first embodiment of the present invention provides an automatic induction flushing device, including:
the first detection module is used for acquiring the capacitance data of the flushing module, calculating the derivative value of the capacitance data at each moment with respect to time to obtain a detection curve, and determining the maximum value on the detection curve and a target moment corresponding to the maximum value;
and the second detection module is used for acquiring the target voltage of the first detection module at the target moment when the maximum value is determined to be larger than the preset threshold value, and controlling the flushing module to open when the target voltage is determined to be smaller than the preset voltage.
The working principle of the technical scheme is as follows: the first detection module is used for acquiring capacitance data of the flushing module in real time, calculating a derivative value of the capacitance data at each moment with respect to time respectively, and obtaining a detection curve according to the derivative value; determining a maximum value on the detection curve and a target moment corresponding to the maximum value, and judging whether the maximum value is greater than a preset threshold value; the preset threshold is a derivative value of capacitance data acquired when the first detection module is triggered by induction, wherein the derivative value is relative to time; the first detection module judges whether the finger of the user touches or not based on a comparison result of the maximum value and a preset threshold value. The second detection module is used for acquiring a target voltage of the first detection module at a target moment when the maximum value is determined to be larger than a preset threshold value, and comparing the target voltage with a preset voltage; the preset voltage is a voltage value obtained when the first detection module is not triggered by induction; and when the target voltage is determined to be smaller than the preset voltage, controlling the flushing module to open. The induction trigger comprises a contact induction trigger mode and a non-contact induction trigger mode, and the contact induction trigger mode can be that a user touches with a finger.
The beneficial effects of the above technical scheme are that: the problem that the first detection module is inaccurate in detection due to the fact that the first detection module is only used for noise interference of electromagnetic waves and the like in an actual scene is avoided. When a finger touches the touch panel, the detection electrode of the first detection module and the ground form an inductive capacitor, which causes the voltage of the first detection module to be reduced. According to the common detection result of the first detection module and the second detection module, the accuracy of whether the user fingers touch or not is guaranteed, and the accuracy of controlling the flushing module to open is improved.
According to some embodiments of the invention, further comprising:
the setting module is used for setting the initial data number A and the additional data number B before the first detection module respectively calculates the derivative value of the capacitance data at each moment relative to time; grouping the capacitance data according to the number of the initial data and the number of the additional data to obtain a plurality of combinations, wherein the number of the capacitance data in each combination is equal;
a first filtering module to:
determining A + B data according to the arrangement sequence of the capacitance data in the first combination, and filtering the first combination to obtain a first filtering combination;
acquiring A pieces of capacitance data after the first combination, obtaining a second combination according to the last B pieces of data in the first combination and the A pieces of capacitance data after the first combination, and filtering the second combination to obtain a second filtering combination;
a first determining module, configured to determine a trend of change in capacitance data between the first filtering combination and the second filtering combination;
a second filtering module to:
when the change trend is determined to be increasing, calculating the first filtering combination and the second filtering combination based on a preset weighted recursive filtering algorithm to obtain first target data;
when the change trend is determined to be decreasing, calculating the first filtering combination and the second filtering combination based on a preset median filtering algorithm to obtain second target data;
the first detection module calculates a derivative value of the first target data or the second data with respect to time.
The working principle of the technical scheme is as follows: the setting module is used for setting the initial data number A and the additional data number B before the first detection module respectively calculates the derivative value of the capacitance data at each moment relative to time; grouping the capacitance data according to the number of the initial data and the number of the additional data to obtain a plurality of combinations, wherein the number of the capacitance data in each combination is equal; the specific capacitance data is 13, 12,18,19,22,26,29, 27; the number A of the initial data is 3; the number of the additional data B is 2; a first filtering module to: determining A + B data according to the arrangement sequence of the capacitance data in the first combination, and filtering the first combination to obtain a first filtering combination; acquiring A pieces of capacitance data after the first combination, obtaining a second combination according to the last B pieces of data in the first combination and the A pieces of capacitance data after the first combination, and filtering the second combination to obtain a second filtering combination; the first combination is 13, 12,18,19, 22; the second combination is 19,22,26,29, 27; the first combination and the second combination are mean filtered based on a sliding window of width 2B + 1. A first determining module, configured to determine a trend of change in capacitance data between the first filtering combination and the second filtering combination; a second filtering module to: when the change trend is determined to be increasing, calculating the first filtering combination and the second filtering combination based on a preset weighted recursive filtering algorithm to obtain first target data; when the change trend is determined to be decreasing, calculating the first filtering combination and the second filtering combination based on a preset median filtering algorithm to obtain second target data; the preset weighting recursive filtering algorithm and the preset median filtering algorithm are prior art and are not described in detail. The first determining module compares the average value of the first filtering combination with the average value of the second filtering combination, and then determines the variation trend.
The beneficial effects of the above technical scheme are that: the capacitance data are subjected to filtering processing twice, so that the filtering effect is ensured, the influence of noise on the capacitance data is eliminated, the accuracy of the first target data or the second target data is ensured, and the accuracy of calculating the derivative value of the first target data or the second data with respect to time by the first detection module is improved.
As shown in fig. 2, according to some embodiments of the invention, further comprising:
the infrared detection module is used for carrying out first detection on a preset area after the flushing module executes an opening action to obtain a first detection result;
the laser detection module is used for carrying out second detection on the preset area after the infrared detection module carries out first detection to obtain a second detection result;
the second determining module is used for controlling the foreign matter detecting module to start working when the preset area is determined to have no human body according to the first detecting result and the second detecting result;
the foreign matter detection module is used for detecting whether foreign matters exist in the bedpan after the flushing module performs the opening action;
and the flushing module is used for opening again when the foreign matter detection module determines that foreign matters exist in the bedpan.
The working principle of the technical scheme is as follows: the infrared detection module is used for carrying out first detection on a preset area after the flushing module executes an opening action to obtain a first detection result; the laser detection module is used for carrying out second detection on the preset area after the infrared detection module carries out first detection to obtain a second detection result; the second determining module is used for controlling the foreign matter detecting module to start working when the preset area is determined to have no human body according to the first detecting result and the second detecting result; the foreign matter detection module is used for detecting whether foreign matters exist in the bedpan after the flushing module performs the opening action; and the flushing module is used for opening again when the foreign matter detection module determines that foreign matters exist in the bedpan.
The beneficial effects of the above technical scheme are that: avoid in actual scene, people are after the touch, and the washing by water module execution is opened the action back, and the emergence of the problem that still has the foreign matter in the bedpan the inside, leave the back at definite user, the auto-induction foreign matter, and then clear away the foreign matter automatically once more, after the foreign matter is washed completely, guarantee the clean effect of bedpan, it is more intelligent, improve user experience.
According to some embodiments of the invention, the flush module comprises a capacitive sensor.
The beneficial effects of the above technical scheme are that: based on capacitanc induction technology, through the touch of user's finger, realize the accurate control to the hydrophone, response speed is fast to the jam-proof can the reinforce, and is more intelligent, satisfies user's travelling comfort demand.
According to some embodiments of the invention, further comprising:
the pressing module is used for pressing a switch of the cleaning bottle to extrude the cleaning agent when the flushing module is opened;
the mixing module is used for mixing the cleaning agent and water to obtain a mixed solution; and flushing the bedpan according to the mixed solution.
The working principle of the technical scheme is as follows: the pressing module is used for pressing a switch of the cleaning bottle to extrude the cleaning agent when the flushing module is opened; the mixing module is used for mixing the cleaning agent and water to obtain a mixed solution; and flushing the bedpan according to the mixed solution.
The beneficial effects of the above technical scheme are that: the mixed solution of the cleaning agent and water after being fully mixed is used, so that the cleaning is cleaner, no peculiar smell exists, and the cleaning effect is ensured.
According to some embodiments of the invention, the toilet further comprises an alarm module, configured to send a first alarm prompt when the flushing module executes a preset number of times within a preset time and the foreign matter detection module determines that foreign matter still exists in the toilet bowl.
The beneficial effects of the above technical scheme are that: when the foreign matter cannot be removed, the user is reminded to come to check in time, and then the foreign matter is cleaned in time.
According to some embodiments of the invention, further comprising:
the third detection module is used for detecting a first capacitance parameter of the capacitive sensor in a non-touch state and a second capacitance parameter of the capacitive sensor in a touch state;
the third determining module is used for determining a capacitance difference value between the first capacitance parameter and the second capacitance parameter, comparing the capacitance difference value with a preset capacitance difference value, and when the capacitance difference value is determined to be larger than the preset capacitance difference value, indicating that the capacitance sensor is qualified; otherwise, the capacitive sensor is not qualified.
The beneficial effects of the above technical scheme are that: the preset capacitance difference value is obtained by a user through multiple experiments. Whether the capacitive sensor is qualified or not is accurately judged, and when the capacitive sensor is determined to be unqualified, the capacitive sensor is replaced in time, so that the maintenance timeliness is improved, the touch sensitivity is ensured, the response speed of a system is further ensured, and the user experience is improved.
According to some embodiments of the invention, further comprising:
and the dose detection module is arranged on the cleaning bottle and used for acquiring the dose of the cleaning agent in the cleaning bottle and sending out a second alarm prompt when the dose is determined to be smaller than the preset dose.
The beneficial effects of the above technical scheme are that: and the user is reminded to add the cleaning agent in time, so that the cleaning effect is ensured.
In one embodiment, the system further comprises a speech recognition module configured to:
collecting voice data of a user, carrying out feature extraction on the voice data, and determining a voice keyword;
obtaining a feature vector of a voice keyword, matching the feature vector with a preset feature vector of a preset voice keyword in a database, calculating to obtain a plurality of similarities, screening out the maximum similarity, judging whether the maximum similarity is greater than the preset similarity, taking the preset keyword corresponding to the maximum similarity as a target keyword when the maximum similarity is determined to be greater than the preset similarity, determining a control instruction where the target keyword is located, and executing the control instruction by the flusher.
Calculating the similarity S between the feature vector and a preset feature vector of a preset voice keyword in a database:
wherein x isiIs the ith feature component of the feature vector; y isiThe feature component is the ith feature component of a preset feature vector of a preset voice keyword; n is the number of the feature components of the feature vector and is also the number of the feature components of the preset feature vector, and the number of the feature components of the feature vector is equal to the number of the feature components of the preset feature vector.
The working principle and the beneficial effects of the technical scheme are as follows: collecting voice data of a user, carrying out feature extraction on the voice data, and determining a voice keyword; obtaining a feature vector of a voice keyword, matching the feature vector with a preset feature vector of a preset voice keyword in a database, calculating to obtain a plurality of similarities, screening out the maximum similarity, judging whether the maximum similarity is greater than the preset similarity, taking the preset keyword corresponding to the maximum similarity as a target keyword when the maximum similarity is determined to be greater than the preset similarity, determining a control instruction where the target keyword is located, and executing the control instruction by the flusher. The realization is to the accurate discernment of customer's voice command, has realized the speech control to the hydrophone, and is more intelligent, improves user experience. The feature component includes the format and voice of the keyword. Based on the formula, the accuracy of calculating the similarity between the feature vector and the preset feature vector of the preset voice keyword in the database is improved.
In one embodiment, the method further comprises:
a data cleansing module to:
before the first detection module calculates the derivative value of the capacitance data with respect to time at each moment, the data cleaning of the capacitance data is performed, and the method specifically includes:
reading the capacitance data and determining a data table to be cleaned;
traversing the data table to be cleaned, and labeling each piece of data to be cleaned in the data table to be cleaned;
classifying the data to be cleaned in the data table to be cleaned according to the labels to obtain a plurality of cleaning sets; determining the classification attribute of each cleaning set, and determining the cleaning interval of each cleaning set according to the classification attribute;
and extracting corresponding data cleaning rules according to the cleaning intervals, and cleaning the data to be cleaned in the corresponding cleaning set according to the data cleaning rules.
The working principle and the beneficial effects of the technical scheme are as follows: reading the capacitance data and determining a data table to be cleaned; traversing the data table to be cleaned, and labeling each piece of data to be cleaned in the data table to be cleaned; classifying the data to be cleaned in the data table to be cleaned according to the labels to obtain a plurality of cleaning sets; determining the classification attribute of each cleaning set, and determining the cleaning interval of each cleaning set according to the classification attribute; and extracting corresponding data cleaning rules according to the cleaning intervals, and cleaning the data to be cleaned in the corresponding cleaning set according to the data cleaning rules. Based on treat to wash data and classify, confirm and wash the interval, and then obtain the data washing rule, avoided in the prior art to treat to wash each and obtain corresponding data washing rule respectively and wash, improved the abluent efficiency of data. The accuracy of capacitance data is guaranteed, and the accuracy of calculation of the first detection module is improved.
As shown in fig. 3, a second embodiment of the present invention provides a method for controlling an auto-induction flushing device, including steps S1-S2:
s1, acquiring capacitance data of the flushing module, and calculating a derivative value of the capacitance data at each moment with respect to time to obtain a detection curve; determining a maximum value on the detection curve and a target time corresponding to the maximum value;
s2, when the maximum value is determined to be larger than a preset threshold value, acquiring the target voltage of the first detection module at the target moment, and when the target voltage is determined to be smaller than the preset voltage, controlling the flushing module to open.
The working principle of the technical scheme is as follows: acquiring capacitance data of a flushing module in real time, calculating a derivative value of the capacitance data at each moment with respect to time respectively, and obtaining a detection curve according to the derivative value; determining a maximum value on the detection curve and a target moment corresponding to the maximum value, and judging whether the maximum value is greater than a preset threshold value; the preset threshold is a derivative value of capacitance data acquired when a user finger touches the first detection module, wherein the derivative value is related to time; the first detection module judges whether the finger of the user touches or not based on a comparison result of the maximum value and a preset threshold value. When the maximum value is determined to be larger than a preset threshold value, acquiring a target voltage of the first detection module at a target moment, and comparing the target voltage with a preset voltage; the preset voltage is a voltage value obtained when a finger of a user does not touch the first detection module; and when the target voltage is determined to be smaller than the preset voltage, controlling the flushing module to open.
The beneficial effects of the above technical scheme are that: the problem that the first detection module is inaccurate in detection due to the fact that the first detection module is only used for noise interference of electromagnetic waves and the like in an actual scene is avoided. When a finger touches the touch panel, the detection electrode of the first detection module and the ground form an inductive capacitor, which causes the voltage of the first detection module to be reduced. According to the common detection result of the first detection module and the second detection module, the accuracy of whether the user fingers touch or not is guaranteed, and the accuracy of controlling the flushing module to open is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An auto-induction flusher, comprising:
the first detection module is used for acquiring the capacitance data of the flushing module, calculating the derivative value of the capacitance data at each moment with respect to time to obtain a detection curve, and determining the maximum value on the detection curve and a target moment corresponding to the maximum value;
and the second detection module is used for acquiring the target voltage of the first detection module at the target moment when the maximum value is determined to be larger than the preset threshold value, and controlling the flushing module to open when the target voltage is determined to be smaller than the preset voltage.
2. The automatic induction flusher of claim 1 wherein said preset threshold is a derivative value of capacitance data acquired when said first detection module is inductively triggered with respect to time; the preset voltage is a voltage value obtained when the first detection module is not triggered by induction.
3. The automatic induction flusher of claim 1 wherein said flush module includes a capacitive sensor.
4. The automatic induction flushing device of claim 1 further comprising:
the pressing module is used for pressing a switch of the cleaning bottle to extrude the cleaning agent when the flushing module is opened;
the mixing module is used for mixing the cleaning agent and water to obtain a mixed solution; and flushing the bedpan according to the mixed solution.
5. The automatic induction flushing device of claim 4 further comprising:
and the dose detection module is arranged on the cleaning bottle and used for acquiring the dose of the cleaning agent in the cleaning bottle and sending out a second alarm prompt when the dose is determined to be smaller than the preset dose.
6. The automatic induction flushing device of claim 1 further comprising:
the setting module is used for setting the initial data number A and the additional data number B before the first detection module respectively calculates the derivative value of the capacitance data at each moment relative to time; grouping the capacitance data according to the number of the initial data and the number of the additional data to obtain a plurality of combinations, wherein the number of the capacitance data in each combination is equal;
a first filtering module to:
determining A + B data according to the arrangement sequence of the capacitance data in the first combination, and filtering the first combination to obtain a first filtering combination;
acquiring A pieces of capacitance data after the first combination, obtaining a second combination according to the last B pieces of data in the first combination and the A pieces of capacitance data after the first combination, and filtering the second combination to obtain a second filtering combination;
a first determining module, configured to determine a trend of change in capacitance data between the first filtering combination and the second filtering combination;
a second filtering module to:
when the change trend is determined to be increasing, calculating the first filtering combination and the second filtering combination based on a preset weighted recursive filtering algorithm to obtain first target data;
when the change trend is determined to be decreasing, calculating the first filtering combination and the second filtering combination based on a preset median filtering algorithm to obtain second target data;
the first detection module calculates a derivative value of the first target data or the second data with respect to time.
7. The automatic induction flushing device of claim 1 further comprising:
the infrared detection module is used for carrying out first detection on a preset area after the flushing module executes an opening action to obtain a first detection result;
the laser detection module is used for carrying out second detection on the preset area after the infrared detection module carries out first detection to obtain a second detection result;
the second determining module is used for controlling the foreign matter detecting module to start working when the preset area is determined to have no human body according to the first detecting result and the second detecting result;
the foreign matter detection module is used for detecting whether foreign matters exist in the bedpan after the flushing module performs the opening action;
and the flushing module is used for opening again when the foreign matter detection module determines that foreign matters exist in the bedpan.
8. The automatic induction flushing device of claim 3 further comprising:
the third detection module is used for detecting a first capacitance parameter of the capacitive sensor in a non-touch state and a second capacitance parameter of the capacitive sensor in a touch state;
the third determining module is used for determining a capacitance difference value between the first capacitance parameter and the second capacitance parameter, comparing the capacitance difference value with a preset capacitance difference value, and when the capacitance difference value is determined to be larger than the preset capacitance difference value, indicating that the capacitance sensor is qualified; otherwise, the capacitive sensor is not qualified.
9. The automatic induction flushing device of claim 1 further comprising:
a data cleansing module to:
before the first detection module calculates the derivative value of the capacitance data with respect to time at each moment, the data cleaning of the capacitance data is performed, and the method specifically includes:
reading the capacitance data and determining a data table to be cleaned;
traversing the data table to be cleaned, and labeling each piece of data to be cleaned in the data table to be cleaned;
classifying the data to be cleaned in the data table to be cleaned according to the labels to obtain a plurality of cleaning sets; determining the classification attribute of each cleaning set, and determining the cleaning interval of each cleaning set according to the classification attribute;
and extracting corresponding data cleaning rules according to the cleaning intervals, and cleaning the data to be cleaned in the corresponding cleaning set according to the data cleaning rules.
10. A method of controlling an auto-induction flusher, comprising:
acquiring capacitance data of a flushing module, and calculating a derivative value of the capacitance data at each moment with respect to time to obtain a detection curve; determining a maximum value on the detection curve and a target time corresponding to the maximum value;
and when the maximum value is determined to be larger than a preset threshold value, acquiring the target voltage of the first detection module at a target moment, and when the target voltage is determined to be smaller than the preset voltage, controlling the flushing module to open.
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