CN104457795B - Paper jamming judgment method for paper shredder - Google Patents
Paper jamming judgment method for paper shredder Download PDFInfo
- Publication number
- CN104457795B CN104457795B CN201310421409.6A CN201310421409A CN104457795B CN 104457795 B CN104457795 B CN 104457795B CN 201310421409 A CN201310421409 A CN 201310421409A CN 104457795 B CN104457795 B CN 104457795B
- Authority
- CN
- China
- Prior art keywords
- paper
- value
- inlet
- shredder
- paper inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a paper jamming judgment method for a paper shredder. According to the paper jamming judgment method for the paper shredder of the invention, a no-load value is updated through adopting a weighted average method, and at the same time, a waiting time is introduced, and therefore, the accuracy of paper jamming judgment can be improved; comparison values used in the paper jamming judgment method include the no-load value and a fixed value, wherein the no-load value is updated dynamically, and the fixed value is constant, and the coordination of the no-load value and the fixed value can benefit the improvement on the accuracy of judgment; the weighted average method is adopted to update the no-load value, so that judgment results can adapt to the differences of different motors and machine cores of the paper shredder, the differences of different working stages (temperature rises) of the paper shredder and differences of different operation actions of operators; and the waiting time is preset, and the waiting time is considered when the no-load value is updated, and the accuracy of the judgment can be further improved.
Description
Technical field
The invention belongs to shredder technical field is and in particular to a kind of paperboard determination methods for shredder.
Background technology
The apparatus structure that a kind of existing shredder realizes paper jamming prevention function includes detecting electricity into paper testing circuit, paper jamming prevention
Road, mcu unit and paper jamming prevention warning led.Wherein, enter paper testing circuit and generally detected using infrared tube, this is infrared
To pipe, one is transmitting tube, and one is reception pipe, and after tube-launched infrared light is sheltered from by paper, reception pipe receives
Less than signal, now mcu unit may determine that has paper to put into for paper inlet.Paper jamming prevention testing circuit includes dielectric constant sensing
Device, dielectric constant Signal-regulated kinase etc..Wherein, this dielectric constant sensor is used for detecting dielectric constant signal, including by two
The electric capacity that piece sheet metal is constituted, the capacity formula of electric capacity is c=ε s/4 л kd, and wherein, c is capacitance, and ε is dielectric parameter,
S is electric capacity two substrates area, л and k is respectively pi constant and electrostatic force constant, and d is electric capacity two substrates distance.By paper
Putting into paper inlet is between the two panels sheet metal that paper is put into dielectric constant sensor electric capacity, when paper inlet puts into different thickness
When degree, the paper of varying number, the value of ε is also different, can decide whether paperboard by the change of ε.Dielectric constant signal condition
Module is used for carrying out quantification treatment to the dielectric constant signal detecting, and is modulated into an integer value, is adopted using this integer value
Whether certain comparative approach can be to occurring paperboard to judge.A fiducial value can be preset, using shaking in shredder
Swing the circuit setting sampling period, every a sampling period value once, be compared judgement with fiducial value in real time.Due to electricity
The factors such as the difference of machine, the operating temperature rising of movement and user operational motion all can produce impact to integer value, therefore
The precision of paper jamming prevention differs greatly, fiducial value should be dynamic update, the mode of renewal, the opportunity updating are to judging paperboard
Accuracy all has an impact.
Content of the invention
In order to overcome defect present in prior art, the present invention provides a kind of paperboard determination methods for shredder,
The method can improve the accuracy judging paperboard, and specific technical scheme is as follows:
A kind of paperboard determination methods for shredder, described shredder is included into paper testing circuit and paper jamming prevention detection
Circuit；This determination methods comprises the steps:
Step s1, is sampled using paper jamming prevention testing circuit and obtains an instantaneous value, preset a sampling period, sample every one
Cycle updates instantaneous value；A default quiescent value, the initial value of quiescent value is set to instantaneous value during shredder zero load；Default one is fixing
Value；
Wherein, instantaneous value is the quantified rear corresponding integer value of dielectric constant signal of sampling；Shredder zero load refers to broken
Paper machine paper inlet does not have state during paper；
Using entering paper testing circuit, step s2, judging whether paper inlet has paper, if not having paper, entering step s3, if there being paper
Then enter step s4；
Step s3, according to current instantaneous value, updates quiescent value using average weighted method；
Step s3 further includes:
Step s31, judges whether paper inlet has paper, if paper inlet does not have paper, takes current quiescent value to keep in, enters step
s32；If paper inlet has paper, enter step s4；
Step s32, judges whether paper inlet has paper again, if paper inlet does not have paper, is updated using average weighted method
Quiescent value, weighted average method is as the formula (1):
(1)
WhereinFor quiescent value,For instantaneous value；If paper inlet has paper, enter step s4；
Step s4, whether real-time judge instantaneous value is less than the difference of quiescent value and fixed value, if then judging currently as card
Paper-like state.
As prioritization scheme, step s31 further includes:
Step s311, presets a waiting time；Judge whether paper inlet has paper, if paper inlet does not have paper, enter step
s312；If paper inlet has paper, enter step s4；
Step s312, after the waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, takes current
Quiescent value keep in, enter step s32；If paper inlet has paper, enter step s4.
As prioritization scheme, step s32 further includes:
Step s321, judges whether paper inlet has paper, if paper inlet does not have paper, enters step s322；If paper inlet has paper,
Enter step s4；
Step s322, after the waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, adopts and adds
The method of weight average updates quiescent value；If paper inlet has paper, enter step s4.
As prioritization scheme, the waiting time is 5 seconds.
As prioritization scheme, step s3 also includes, and quiescent value turns round execution step s1 after updating.
As prioritization scheme, step s4 also includes, if judge current as paperboard state, jump out this step and carry out at paperboard
Reason；If judging is not currently paperboard state, turn round execution step s1.
Compared with prior art, the method have the advantages that
(1) used in the present invention, fiducial value includes quiescent value and fixed value two parts, and quiescent value is dynamic renewal, Gu
Definite value be to maintain constant, both be combined with beneficial to improve judge accuracy；
(2) present invention adopts average weighted method to update quiescent value, enables judged result to adapt to shredder not simultaneously
Same motor, the difference of movement, the difference in (temperature rise) stage in shredder different operating stage and user different operating action
Difference；
(3) present invention presets a waiting time, considers waiting time when updating quiescent value, improves judgement further
Accuracy.
Brief description
Fig. 1 is the general flow chart of the present invention；
Fig. 2 is the particular flow sheet of step s3；
Fig. 3 realizes the structural representation of the relevant apparatus of paper jamming prevention function for shredder.
Specific embodiment
Describe the present invention below in conjunction with the accompanying drawings by way of example in detail.
Embodiment 1:
As shown in figure 1, a kind of paperboard determination methods for shredder, shredder is included into paper testing circuit and anti-sticking
Paper testing circuit；This determination methods comprises the steps:
Step s1, is sampled using paper jamming prevention testing circuit and obtains an instantaneous value, preset a sampling period, sample every one
Cycle updates this instantaneous value；
A default quiescent value, the initial value of quiescent value is set to instantaneous value during shredder zero load；
A default fixed value, this fixed value is the difference judging paper inlet whether paperboard, and the setting when dispatching from the factory, not with broken
The work of paper machine changes.
Wherein, instantaneous value is the quantified rear corresponding integer value of dielectric constant signal of sampling；Shredder zero load refers to broken
Paper machine paper inlet does not have state during paper.
Using entering paper testing circuit, step s2, judging whether paper inlet has paper, if not having paper, entering step s3, if there being paper
Then enter step s4.
Step s3, according to current instantaneous value, updates quiescent value using average weighted method；Quiescent value is turned round after updating
Execution step s1.
Step s3 further includes:
Step s31, judges whether paper inlet has paper, if paper inlet does not have paper, takes current quiescent value to keep in, enters step
s32；If paper inlet has paper, enter step s4；
Step s32, judges whether paper inlet has paper again, if paper inlet does not have paper, is updated using average weighted method
Quiescent value, weighted average method is as the formula (1):
(1)
WhereinFor quiescent value,For instantaneous value；If paper inlet has paper, enter step s4.
In this step, adopt this method renewal quiescent value has the beneficial effects that to make up whether judge paper inlet
There is the difference between the point detection of paper and paper inlet true form, it is to avoid what this difference led to judges whether paper inlet has prolonging of paper
Property afterwards, enables mcu unit to get accurate quiescent value.
Step s4, whether real-time judge instantaneous value is less than the difference of quiescent value and fixed value, if then judging currently as card
Paper-like state；If judge current as paperboard state, jump out this step and carry out paperboard process；If judging is not currently paperboard state,
Revolution execution step s1.
Embodiment 2:
The present embodiment is with the difference of embodiment 1, introduces the waiting time, has done further optimization to step s3,
Step s31 further includes:
Step s311, presets a waiting time；Judge whether paper inlet has paper, if paper inlet does not have paper, enter step
s312；If paper inlet has paper, enter step s4；
Step s312, after the waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, takes current
Quiescent value keep in, enter step s32；If paper inlet has paper, enter step s4.
Step s32 further includes:
Step s321, judges whether paper inlet has paper, if paper inlet does not have paper, enters step s322；If paper inlet has paper,
Enter step s4；
Step s322, after the waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, adopts and adds
The method of weight average updates quiescent value；If paper inlet has paper, enter step s4.
In the present embodiment, the waiting time is set to 5 seconds.
The reason introduce the waiting time is, the paper testing circuit that enters of shredder has following defects that
In actual application, shredder is to detect whether paper inlet has by entering the infrared probe in paper testing circuit
Paper is put into, and infrared probe simply detects to the certain point of paper inlet, and paper inlet is the height in a face, when following two
During situation, paper inlet actually has paper, and infrared probe can't detect:
(1) start when paper inlet throws paper from user, until the lower edge of paper reaches the process before infrared detection probe；
(2) when shredder carries out shredded paper, from the beginning of infrared probe is left in the upper edge of paper, until paper is complete
Broken complete process；
In both cases, mcu unit all thinks that paper inlet does not have paper, but in fact, paper inlet has paper, and
When the renewal of quiescent value must be that shredder is in Light Condition, drawbacks described above can affect the value precision of quiescent value.
In order to avoid the impact to the quiescent value in the present invention for the both above situation, this embodiment introduces the waiting time,
When shredder is unloaded, needs to update quiescent value, if judge that paper inlet does not have paper, first passes through one section of waiting time, then judge
Once, if paper inlet is still without paper, then quiescent value is updated.So may insure when quiescent value is updated, shredded paper
Machine is necessarily in Light Condition, thus improving the accuracy that paperboard judges further.
The other technical characteristics of the present embodiment are substantially the same manner as Example 1, will not be described here.
Two specific embodiments being only the application disclosed above, but the application is not limited to this any this area
What technical staff can think change, all should fall in the protection domain of the application.
Claims (6)
1. a kind of paperboard determination methods for shredder, described shredder includes detecting electricity into paper testing circuit and paper jamming prevention
Road；It is characterized in that, this determination methods comprises the steps:
Step s1.1, presets a sampling period, updates instantaneous value every a sampling period；A default quiescent value, by described sky
The initial value of load value is set to instantaneous value during described shredder zero load；A default fixed value；
Wherein, described instantaneous value is the quantified rear corresponding integer value of dielectric constant signal of sampling；Described shredder zero load is
Referring to paper inlet of paper shredder does not have state during paper；
Step s1.2, is sampled using described paper jamming prevention testing circuit and obtains an instantaneous value；
Step s2, using described enter paper testing circuit judge whether paper inlet has paper, if there is no paper, enter step s3, if there being paper
Then enter step s4；
Step s3, according to current described instantaneous value, updates described quiescent value using average weighted method；
Described step s3 further includes:
Step s31, judges whether paper inlet has paper, if paper inlet does not have paper, takes current described quiescent value to keep in, enters step
s32；If paper inlet has paper, enter step s4；
Step s32, judges whether paper inlet has paper again, if paper inlet does not have paper, updates described sky using weighted average method
Load value, shown in described weighted average method such as formula (1):
Aver=(3aver+data)/4 (1)
Wherein aver is quiescent value, and data is instantaneous value；If paper inlet has paper, enter step s4；
Step s4, whether instantaneous value described in real-time judge is less than the difference of described quiescent value and described fixed value, if then judging
It is currently paperboard state.
2. a kind of paperboard determination methods for shredder according to claim 1 are it is characterised in that described step s31
Further include:
Step s311, presets a waiting time；Judge whether paper inlet has paper, if paper inlet does not have paper, enter step s312；If
Paper inlet has paper, enters step s4；
Step s312, after the described waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, takes current
Described quiescent value keep in, enter step s32；If paper inlet has paper, enter step s4.
3. a kind of paperboard determination methods for shredder according to claim 2 are it is characterised in that described step s32
Further include:
Step s321, judges whether paper inlet has paper, if paper inlet does not have paper, enters step s322；If paper inlet has paper, enter
Step s4；
Step s322, after the described waiting time, judges whether paper inlet has paper again, if paper inlet does not have paper, adopts and adds
The method of weight average updates described quiescent value；If paper inlet has paper, enter step s4.
4. a kind of paperboard determination methods for shredder according to Claims 2 or 3 are it is characterised in that described wait
Time is 5 seconds.
5. a kind of paperboard determination methods for shredder according to claim 1 it is characterised in that described step s3 also
Including described quiescent value turns round execution step s1.2 after updating.
6. according to claim 1 or 5 a kind of paperboard determination methods for shredder it is characterised in that described step
S4 also includes, if judge current as paperboard state, jump out this step and carry out paperboard process；If judging is not currently paperboard state,
Then turn round execution step s1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421409.6A CN104457795B (en) | 2013-09-17 | 2013-09-17 | Paper jamming judgment method for paper shredder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421409.6A CN104457795B (en) | 2013-09-17 | 2013-09-17 | Paper jamming judgment method for paper shredder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457795A CN104457795A (en) | 2015-03-25 |
| CN104457795B true CN104457795B (en) | 2017-02-01 |
Family
ID=52904227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310421409.6A Active CN104457795B (en) | 2013-09-17 | 2013-09-17 | Paper jamming judgment method for paper shredder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104457795B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669950B (en) * | 2016-11-09 | 2018-08-24 | 常州市浦西尔电子有限公司 | A kind of control circuit for kneading machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009087558A1 (en) * | 2008-01-09 | 2009-07-16 | Holcim Technology Ltd. | Method for protecting mill drives on vertical roller mills and vertical roller mills |
| CN102035461A (en) * | 2009-09-24 | 2011-04-27 | 致伸科技股份有限公司 | Frequency conversion control system and method of paper shredder |
| US20110186663A1 (en) * | 2004-09-10 | 2011-08-04 | Fellowes Inc. | Shredder with thickness detector |
| CN202343271U (en) * | 2011-12-02 | 2012-07-25 | 常州市津派克斯电器有限公司 | Adjustable paper shredder with paper jam protection function |
| CN103263969A (en) * | 2013-05-22 | 2013-08-28 | 中国科学院信息工程研究所 | Shredder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3772128B2 (en) * | 2002-03-29 | 2006-05-10 | 株式会社クボタ | Crusher overload prediction system |
-
2013
- 2013-09-17 CN CN201310421409.6A patent/CN104457795B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110186663A1 (en) * | 2004-09-10 | 2011-08-04 | Fellowes Inc. | Shredder with thickness detector |
| WO2009087558A1 (en) * | 2008-01-09 | 2009-07-16 | Holcim Technology Ltd. | Method for protecting mill drives on vertical roller mills and vertical roller mills |
| CN102035461A (en) * | 2009-09-24 | 2011-04-27 | 致伸科技股份有限公司 | Frequency conversion control system and method of paper shredder |
| CN202343271U (en) * | 2011-12-02 | 2012-07-25 | 常州市津派克斯电器有限公司 | Adjustable paper shredder with paper jam protection function |
| CN103263969A (en) * | 2013-05-22 | 2013-08-28 | 中国科学院信息工程研究所 | Shredder |
Non-Patent Citations (1)
| Title |
|---|
| 碎纸机堵转保护方法;张晓涛;《机械工程与自动化》;20130228(第1期);第204-207页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104457795A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105869434B (en) | A kind of method for detecting parking stalls based on geomagnetic sensor | |
| CN102253048B (en) | Machine vision detection method and system for detection of various products | |
| WO2009134627A3 (en) | Method and apparatus for motion detection in auto-focus applications | |
| CN103593984A (en) | Environmentally adaptive traffic flow detection method based on terrestrial magnetism | |
| CN106656204A (en) | Method and device for implementing interference resistance of touch key | |
| CN103163132A (en) | System and method for real-time appearance digital analysis for yarn | |
| EP1574607A3 (en) | Quality control method for fiber bundle in spinning machine | |
| CN202420664U (en) | Automatic ambient noise monitor | |
| CN107292223A (en) | A kind of online verification method and system of real-time gesture detection | |
| CN103365967A (en) | Automatic difference detection method and device based on crawler | |
| CN104457795B (en) | Paper jamming judgment method for paper shredder | |
| CN105551453A (en) | Screen brightness adjusting method and apparatus | |
| AU2014321074A1 (en) | Method and apparatus for detecting magnetic signal of paper money | |
| CN106710238B (en) | Method for improving accuracy of geomagnetic vehicle detector | |
| CN117466153B (en) | Fault detection method, device, computer equipment and readable storage medium | |
| CN108755007A (en) | A kind of washing machine weighing method and washing machine | |
| CN112944734B (en) | Air conditioner compressor oil level determining method and air conditioner oil return control method | |
| CN108489712A (en) | A kind of device for automobile lamp performance detection | |
| CN103678730A (en) | Method and device for acquiring photosensitive sensor data | |
| CN103630852A (en) | Fault processing method and device of intelligent headlamp system | |
| CN203890734U (en) | Drum washing machine | |
| CN103837755A (en) | Refrigerator component fault detection method and system | |
| CN110207783A (en) | A kind of sensed water level method based on video identification | |
| CN202433309U (en) | Real-time yarn appearance digitized analytic system | |
| CN205080645U (en) | Utilize photosensitive sensor to detect paper sheet thickness's device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |