CN103868572A - Sanitary ware follow-up water simulant detecting system and method - Google Patents
Sanitary ware follow-up water simulant detecting system and method Download PDFInfo
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- CN103868572A CN103868572A CN201410026796.8A CN201410026796A CN103868572A CN 103868572 A CN103868572 A CN 103868572A CN 201410026796 A CN201410026796 A CN 201410026796A CN 103868572 A CN103868572 A CN 103868572A
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Abstract
The invention discloses a sanitary ware follow-up water simulant detecting system, comprising a simulant detecting module, a weighing module, a communication module, a display module and a main control module, wherein when the simulant is washed down along with water and enters the interior of a coil, slight change of a magnetic field is caused, the simulant detecting module can collect signals through the change of the magnetic field, the signals are sent to the main control module through the communication module, when the main control module judges that all the simulants are washed down, the main control module sends an instruction to the weighing module for weighing and counting, and then judges and calculates, and finally, the result is transmitted to the display module. The follow-up water quantity can be precisely measured.
Description
Technical field
The invention belongs to technical field of sanitary ware, relate to a kind of cleaners and polishes follow-up water analogies detection system and method.
Background technology
Along with the raising of expanding economy and people's living standard, people more and more pay attention to cleaners and polishes, therefore producing and can ensure the rinse capability toilet class cleaners and polishes of water saving relatively again, is to solve people to this better approach to contradiction of hygienic requirements and high efficient utilization of water resources.Rinse capability, as one of important quality standard of toilet class cleaners and polishes, has determined the quality of cleaners and polishes quality.So in the production run of cleaners and polishes, detect exactly the follow-up water yield and seem particularly important.The follow-up water yield refers to when whole analogies are by aquifer yield following closely after drain outlet of toilet stool, its effect is in each flushing process, and analogies are poured to standpipe through connecting pipe, makes blow-off line reach self-cleaning, replacing water water shutoff simultaneously, without supplementing water water shutoff.Toilet generally comprises and rinses tank, connecting pipe, standpipe, water container.Toilet seat of the prior art can not the follow-up water of Measurement accuracy.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, a kind of cleaners and polishes follow-up water analogies detection system and method are provided, for can be more accurate, more practical, detect more simply cleaners and polishes quality and whether meet industry standard, this system, taking C8051F040 single-chip microcomputer as control technology core, is used metal detection technology, has solved well this technical barrier of the follow-up water of Measurement accuracy.
Its concrete technical scheme is:
The follow-up water analogies of a kind of cleaners and polishes detection system, comprise analogies detection module, Weighing module, communication module, display module and main control module, in described analogies detection module, be provided with shape of a hoof coil, communication module, display module and main control module are positioned at electronic-controlled installation inside, in the time that analogies sweep away through coil inside with water, cause the slight variation in magnetic field, analogies detection module just can collect signal by the variation in magnetic field, be sent to main control module by communication module, main control module judges when all analogies are swept away, send instruction to the Weighing module counting that starts to weigh, then judge by main control module, calculate, finally result is sent to display module, the easy structure of described detection system comprises toilet seat, analogies, connecting pipe, standpipe, support, water container, electronic scale, horseshoe magnet, electronic-controlled installation, and described horseshoe magnet is enclosed within outside standpipe, described electronic scale is positioned at water container bottom, and described electronic-controlled installation is connected with electronic scale, and described analogies are positioned at toilet seat, and described toilet seat is connected with standpipe by connecting pipe, and toilet seat bottom is provided with support.
Further preferably, analogies in described analogies detection module adopt standard specimen, are made up of artificial casing, wherein insert the stainless steel metal detector rings that an inside diameter is 14mm, steel wire diameter is 1.6mm, quality is 1.53g, or inserts a silver ring that inside diameter is 10mm, and diameter of wire is 2.0mm, and inject wherein the water of 37 milliliters, upper end is provided with linen thread, and each test specimen is bundled into three chambers, and each test adopts 4 test specimens.
The follow-up water analogies of a kind of cleaners and polishes detection method, comprise the following steps: analogies are put into toilet, system is started working, first down counter puts 4, then toilet starts bath, now system judges the whereabouts situation of analogies according to analogies detection module, in the time that down counter value is 0, analogies all rush, main control module sends instruction, read the water container water yield that now Weighing module is measured, then, by time delay, judge that whether water level is stable, treat stable level, main control module reads the water container water yield that Weighing module is measured again, the calculated for subsequent water yield, and be transmitted in display module.
Compared with prior art, beneficial effect of the present invention is: the current also system of the follow-up water yield of incompetent Measurement accuracy, it is main control module that the present invention adopts single-chip microcomputer, utilize Electromagnetic Testing Technology can detect comparatively accurately analogies, can automatically detect and show the follow-up water yield, having filled up blank in this respect.
Brief description of the drawings
Fig. 1 is the follow-up water analogies of cleaners and polishes detection system easy structure schematic diagram, wherein, and 1-toilet seat, 2-analogies, 3-connecting pipe, 4-standpipe, 5-support, 6-water container 7-electronic scale, 8-horseshoe magnet, 9-electronic-controlled installation;
Fig. 2 is total frame diagram of the present invention;
Fig. 3 is the follow-up water analogies of cleaners and polishes of the present invention detection method process flow diagram;
Fig. 4 is analogies detection module block diagram;
Fig. 5 is the structural representation of standard specimen, and wherein 11-injects 37ml water to analogies, 12-artificial casing, the water level after 13-ties up, 14-linen thread, the water level before 15-ties up, 16-the one O shape ring, 17-becket, 18-the 2nd O shape ring, 19-linen thread;
Fig. 6 is metal detection circuit theory diagrams.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.
With reference to Fig. 1, , Fig. 2, the follow-up water analogies of a kind of cleaners and polishes detection system, comprise analogies detection module, Weighing module, communication module, display module and main control module, in described analogies detection module, be provided with shape of a hoof coil, communication module, display module and main control module are positioned at electronic-controlled installation inside, in the time that analogies sweep away through coil inside with water, cause the slight variation in magnetic field, analogies detection module just can collect signal by the variation in magnetic field, be sent to main control module C8051F040 by communication module, main control module judges when all analogies are swept away, send instruction to the Weighing module counting that starts to weigh, then judge by main control module, calculate, finally result is sent to display module, the easy structure of described detection system comprises toilet seat 1, analogies 2, connecting pipe 3, standpipe 4, support 5, water container 6, electronic scale 7, horseshoe magnet 8, electronic-controlled installation 9, and described horseshoe magnet 8 is enclosed within outside standpipe 4, described electronic scale 7 is positioned at water container 6 bottoms, and described electronic-controlled installation 9 is connected with electronic scale 7, and described analogies 2 are positioned at toilet seat 1, and described toilet seat 1 is connected with standpipe 4 by connecting pipe 3, and toilet seat 1 bottom is provided with support 5.
Analogies detection module mentality of designing
Thinking one: put into four analogies in toilet, sweep away analogies when toilet discharges water, whether system can be surveyed exactly each analogies and be fallen by punching, and send signal to master control system.When analogies all by punching fall complete, system collects follow-up water yield value exactly, and is presented at terminal.Thus, total framework of the design as shown in Figure 2.
Analogies detecting module is mainly made up of ferromagnetic coil, in the time that analogies (in have becket) sweep away through coil inside with water, cause magnetic flux change, main control module judges analogies whereabouts situation by the number of pulses that detects magnetic flux change formation.In the time of program design, first giving counter assignment is 4, when system detects that after analogies, counter subtracts 1, in the time that counter values is 0, can determine that last analogies is rushed by water.After stable level, Weighing module starts to read water level, and is shown in terminal.But this thinking exists a defect, cannot judge that analogies are single fall in turn or multiple stack falls simultaneously.Because the ferromagnetic coil adopting is made up of circular magnet, it can only produce non-uniform magnetic-field, therefore cannot go accurately to judge analogies are with which kind of situation to fall by the variation of magnetic flux, thereby cause the measurement of follow-up water to have larger error.
Thinking two: change the circular coil in analogies detecting module into shape of a hoof coil.Can be obtained by knowledge: when closed conductor does the motion of cutting magnetic induction line in magnetic field, the magnetic flux in closed-loop path changes.Magnetic flux definition is provided in a side of in the uniform magnetic field that magnetic induction density is B, and having an area is S and the plane vertical with magnetic direction, and the product of magnetic induction density B and area S, is called the magnetic flux through this plane, and expression formula is: Φ=BS.This formula shows that the size of flux change amount is directly proportional to the size of conductor cutting magnetic induction line area.
In the time that analogies (including becket) sweep away through ferromagnetic coil with water, can cause the slight variation of magnetic flux.Due to four altogether of analogies, we fall to having following several situation by hypothetical simulation thing: 1) single analogies fall in turn.2) have once two analogies overlapping whereabouts of level simultaneously at least.3) three analogies overlapping whereabouts of level simultaneously.4) four analogies overlapping whereabouts of level simultaneously.Because coil produces uniform magnetic field, magnetic flux change is directly proportional to the area of becket cutting magnetic induction line.Therefore do following analysis:
Because analogies are single whereabouts in turn, the flux change amount causing when therefore each analogies are through ferromagnetic coil is identical, by main control module, analogies is counted.When having two analogies simultaneously when the overlapping whereabouts of level, flux change amount approaches single situation twice.
The rest may be inferred, and situation 3 and situation 4 flux change amounts are respectively three times and four times of single situation.
By calculating magnetic flux change amplitude, we can judge the moment that last analogies is washed out by water accurately, for the Measurement accuracy of follow-up water provides precondition.The overhaul flow chart of system as shown in Figure 4.Weighing module is mainly made up of LOAD CELLS, can the comparatively accurate follow-up water yield of weighing.Main control module is core by C8051F040, mainly carries out the processing of signal and data.Man-machine interface is mainly made up of C8051F040 and touch-screen, mainly completes the demonstration of data.By the comprehensive comparison to thinking one and thinking two, the design takes thinking two.
The follow-up water analogies of a kind of cleaners and polishes detection method, comprise the following steps: analogies are put into toilet, system is started working, first down counter puts 4, then toilet starts bath, now system judges the whereabouts situation of analogies according to analogies detection module, in the time that down counter value is 0, analogies all rush, main control module sends instruction, read the water container water yield that now Weighing module is measured, then, by time delay, judge that whether water level is stable, treat stable level, main control module reads the water container water yield that Weighing module is measured again, the calculated for subsequent water yield, and be transmitted in display module.
The design of analogies detection module
The core of design of the present invention is to detect the moment that last analogies (including becket) are swept away by water and accurately measures the corresponding follow-up water yield.Thus, the design module block diagram of this part as shown in Figure 4.
1) selecting of analogies: analogies should adopt standard specimen, it forms with artificial casing 12, artificial casing 12 is tubular, and insert therein the stainless steel metal detector rings 17 that an inside diameter is 14mm, (steel wire diameter is 1.6mm, quality is 1.53g), and inject wherein the water 11 of 37 milliliters, or insert a silver ring that inside diameter is 10mm, diameter of wire is 2.0mm, and inject wherein the water 11 of 37 milliliters, upper end is provided with linen thread 19, each test specimen is bundled into three chambers by an O shape ring 16 and the 2nd O shape ring 18, water level 13 after tying up, each test adopts 4 test specimens.Be equivalent to people's once stool amount.Standard specimen can repeatedly use, and has good emulation, and this test specimen can be evaluated out the smooth and easy degree of flushing of closet corollary system truly.Shape as shown in Figure 5.
2) metal detection circuit:
The central principle that the present invention detects is: in the circular pipe falling at analogies, by the ferromagnetic uniform magnetic field that forms of the shape of a hoof.The putting position of the ferromagnetic coil of the shape of a hoof is that two coil U-shaped mouths are relative, and level is embedded in standpipe porcelain body inside, the ferromagnetic magnetic field that produces horizontal direction in circular pipe of the shape of a hoof.The winding method of ferromagnetic coil is to adopt the copper enameled wire that wire diameter is 0.5mm, individual layer coiling.So when analogies are when the ferromagnetic coil, due to becket cutting magnetic induction line, thereby cause the subtle change of magnetic flux.Due to the area difference of the becket cutting magnetic induction line in every kind of situation, thereby cause producing different flux change amounts.Utilize peak-detector circuit to detect magnetic flux change value, then amplify magnetic flux through multistage amplifier circuit, finally remove interfere information and by voltage comparator circuit, flux change amount is converted to square-wave signal by filtering circuit.Square-wave signal is processed and is formed pulse signal through subsequent conditioning circuit.Main control module judges according to the amplitude of pulse signal the situation that analogies fall, and then counter subtracts counting, in the time that counter values is kept to 0, proves that analogies are by cleaning down, goes the follow-up water yield of weighing by weighing module.Metal detection circuit theory diagrams as shown in Figure 6.
In order to measure more accurately change magnetic flux, this circuit has done meticulous screening to various amplifiers.Wherein, peak-detector circuit and voltage follower circuit are made up of OP07 amplifier, OP07 has low-down input offset voltage, so do not need extra zeroing in a lot of application scenarios, low and the high feature of open-loop gain of input bias current that simultaneously it has, makes it be specially adapted to the feeble signal of high-gain measuring equipment and amplification sensor.Multistage amplifier circuit is made up of AD620AN amplifier, and AD620AN has very high common-mode rejection ratio, amplifies the features such as bandwidth, noise figure are little, low in energy consumption.Filtering circuit and voltage comparator circuit are made up of LM339, and LM339 has wider operating voltage, and current sinking is little, input offset voltage is little, common-mode input voltage range wide with and output can be compatible with TTL, MOS, CMOS etc. advantage.
Experimental result and discussion
By Water in Water Tank placing flat, connect line and the pipeline of various piece.Then opening power, sets up newly built construction, then clicks start button, puts down analogies, and the water that weighs constant weight is poured pipeline into, after water surface calmness, has clicked button, then records the data on touch-screen, so repeats 20 times, obtains test figure.As shown in table 1.
Table 1 test findings
From measurement result, the relative error of measuring for 20 times all, between-8%～8%, is measured rate of accuracy reached to more than 92%, meets expection requirement.Certainly still there is certain error in measurement result, cause the reason of these errors, mainly contain following some: the analytical relation 1. obtaining be in theory all hypothesis ideal situation, while whereabouts as analogies, the distance between two analogies also can produce minor impact to magnetic field; 2. owing to containing mineral matter in follow-up water, the different frequency of coil also can cause the impact of water on magnetic field; 3. the induced signal that in experiment, weighing system extracts mixes a lot of undesired signals, and this must also can produce certain impact to measurement result.
The above; it is only preferably embodiment of the present invention; protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in, the simple change of the technical scheme that can obtain apparently or equivalence replace all fall within the scope of protection of the present invention.
Claims (3)
1. the follow-up water analogies of a cleaners and polishes detection system, it is characterized in that, comprise analogies detection module, Weighing module, communication module, display module and main control module, in described analogies detection module, be provided with shape of a hoof coil, communication module, display module and main control module are positioned at electronic-controlled installation inside, in the time that analogies sweep away through coil inside with water, cause the slight variation in magnetic field, analogies detection module just can collect signal by the variation in magnetic field, be sent to main control module by communication module, main control module judges when all analogies are swept away, send instruction to the Weighing module counting that starts to weigh, then judge by main control module, calculate, finally result is sent to display module, the easy structure of described detection system comprises toilet seat, analogies, connecting pipe, standpipe, support, water container, electronic scale, horseshoe magnet, electronic-controlled installation, and described horseshoe magnet is enclosed within outside standpipe, described electronic scale is positioned at water container bottom, and described electronic-controlled installation is connected with electronic scale, and described analogies are positioned at toilet seat, and described toilet seat is connected with standpipe by connecting pipe, and toilet seat bottom is provided with support.
2. the follow-up water analogies of cleaners and polishes according to claim 1 detection system, it is characterized in that, analogies in described analogies detection module adopt standard specimen, formed by artificial casing, wherein insert the stainless steel metal detector rings that an inside diameter is 14mm, steel wire diameter is 1.6mm, quality is 1.53g, or insert a silver ring that inside diameter is 10mm, diameter of wire is 2.0mm, and inject wherein the water of 37 milliliters, upper end is provided with linen thread, each test specimen is bundled into three chambers by an O shape ring and the 2nd O shape ring, each test adopts 4 test specimens.
3. the follow-up water analogies of a cleaners and polishes detection method, it is characterized in that, comprise the following steps: analogies are put into toilet, system is started working, first down counter puts 4, then toilet starts bath, now system judges the whereabouts situation of analogies according to analogies detection module, in the time that down counter value is 0, analogies all rush, main control module sends instruction, read the water container water yield that now Weighing module is measured, then, by time delay, judge that whether water level is stable, treat stable level, main control module reads the water container water yield that Weighing module is measured again, the calculated for subsequent water yield, and be transmitted in display module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410026796.8A CN103868572B (en) | 2014-01-18 | 2014-01-18 | A kind of follow-up Fluid Dynamics analyte detection system and method for sanitary ware |
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| CN201410026796.8A CN103868572B (en) | 2014-01-18 | 2014-01-18 | A kind of follow-up Fluid Dynamics analyte detection system and method for sanitary ware |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110243453A (en) * | 2018-05-18 | 2019-09-17 | 李文杰 | The method that A weighted acoustic power level mensuration detects tank for excrement pan water inlet noise |
| CN112704424A (en) * | 2021-01-27 | 2021-04-27 | 首都医科大学附属北京友谊医院 | Stool and urine separating and collecting sampler for scientific research |
| CN112880795A (en) * | 2021-01-20 | 2021-06-01 | 勃森生命科技(上海)有限公司 | System capable of conducting solid-liquid separation weighing and closestool |
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| JPH08299348A (en) * | 1995-05-02 | 1996-11-19 | Inax Corp | Excretion quantity measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243453A (en) * | 2018-05-18 | 2019-09-17 | 李文杰 | The method that A weighted acoustic power level mensuration detects tank for excrement pan water inlet noise |
| CN110243453B (en) * | 2018-05-18 | 2021-05-07 | 李文杰 | Method for detecting water inlet noise of toilet water tank by A weighting sound power level measurement method |
| CN112880795A (en) * | 2021-01-20 | 2021-06-01 | 勃森生命科技(上海)有限公司 | System capable of conducting solid-liquid separation weighing and closestool |
| CN112704424A (en) * | 2021-01-27 | 2021-04-27 | 首都医科大学附属北京友谊医院 | Stool and urine separating and collecting sampler for scientific research |
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