CN102088534A - Scanning speed adjusting method and scanning system - Google Patents
Scanning speed adjusting method and scanning system Download PDFInfo
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- CN102088534A CN102088534A CN2009102523296A CN200910252329A CN102088534A CN 102088534 A CN102088534 A CN 102088534A CN 2009102523296 A CN2009102523296 A CN 2009102523296A CN 200910252329 A CN200910252329 A CN 200910252329A CN 102088534 A CN102088534 A CN 102088534A
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Abstract
The invention discloses a scanning speed adjusting method and a scanning system. The scanning speed adjusting method is suitable for an electronic device which comprises a scanning module and a controller, and at least comprises the following steps that: (a) the scanning module scans a file so as to generate image data; (b) the controller receives the image data and transmits the image data to an output device; and (c) the controller detects the input rate at which the image data is received by the scanning module and an output rate at which the image data is transmitted to the output device, and dynamically adjusts the scanning speed of the scanning module when the input rate is different from the output rate. Through the method and the system, the scanning speed can be increased to the optimal speed, so that scanning time is shortened and the optimal scanning and transmission efficiencies can be obtained.
Description
Technical field
The present invention relates to a kind of method of adjusting sweep speed, relates in particular to a kind of method and scanning system thereof of adjusting sweep speed.
Background technology
Multifunctional paper feeding machine is used widely because producing the numerical data of representing the original copy content, these numerical datas normally transmit and are stored in host side by I/O circuit (I/O cable), and for example data are sent to computer terminal by the multifunctional paper feeding machine end.And the transmission rate of data is relevant with multifunctional paper feeding machine end and the employed communication protocol of host side, and ideally, the generation speed that is sent to the data of host side is that the speed that can receive with main frame is identical.Thus, scanning system just need not have memory buffer (memory buffer), and its effect is accumulation storage data to be transmitted.Yet the speed that data produce is different with the inbound pacing of main frame usually, if transmission rate greater than the generation speed of data, speed generation data that multifunctional paper feeding machine just can be the fastest, and do not have the problem of data degradation.But the scan-data of actual state multifunctional paper feeding machine produces speed usually greater than the transmission speed of main frame.Therefore, when transmission rate is lower than data generation speed, cause the relevant issues of scan operation efficient with regard to regular meeting.
Except Optical Resolution, sweep speed (scanning speed) is the important document of the scan function of decision multifunctional paper feeding machine with transmission rate.Sweep speed is the speed that scan-data produces, and general finding is exactly that scanner reads speed that device moves or automatically with the speed of mechanism of paper band paper; Transmission rate is defined as the time that the view data of scanning gained is passed back to main frame.If when transmission rate was slower than sweep speed, view data can build up the memory buffer at scanning means, behind the original copy of a possible sweep test, the view data that is accumulated in the memory buffer will have a full house.For fear of fill up the loss that causes data because of the memory buffer, the scanning driving device of multifunctional paper feeding machine can suspend scanning imaging system earlier usually.Then, when the full data transmission of memory buffer finishes or has living space when holding other data again, scanning driving device then can restart scanning imaging system again, to proceed uncompleted scanning.In other words, when the memory buffer is filled up, the scanning driving device that motor drove can suspend scanning earlier, afterwards, when the data that are accumulated in the memory buffer are sent to main frame, when making the inside of memory buffer that enough memory spaces be arranged, scanning driving device begins scanning again, is so constantly repeating the program of startup/time-outs until scan and finish.
Though known multifunctional paper feeding machine can reach the effect of scanning really, but known scanning imaging system is suspending and is restarting in the process of scanning, the image that is scanned can be because vibrations that stop and starting or the gap in the mechanism, and cause scan image to have shake or other bad influences in this position, and reduce scanning quality.
As for, another known technology is for after suspending when motor at present, restart and use lower velocity scanning when scanning, yet the shortcoming of this kind scan mode is, motor still might take place in the situation that scanning one half stops/starting, and can exert an adverse impact at intersection equally, and reduce scanning quality, and the use low-velocity scanning, will make the efficient step-down of scanning.
Therefore, how to develop a kind of method and scanning system thereof of improving the adjustment sweep speed of above-mentioned known technology defective, real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and scanning system thereof of adjusting sweep speed, suspending and restarting in the process of scanning to solve known scanning imaging system, the image that is scanned can be because vibrations that stop and starting or the gap in the mechanism, and cause scan image to have shake or other bad influences in this position, and shortcomings such as reduction scanning quality.
For reaching above-mentioned purpose, of the present invention one than the broad sense execution mode for a kind of method of adjusting sweep speed is provided, be applicable to electronic installation, electronic installation has scan module and controller, at least comprise step: (a) scan module scans file, to produce view data; (b) controller receives view data, and view data is sent to output device; (c) controller detects by scan module and receives the input rate of view data and the transmitted image data output speed to output device, and when input rate and output speed are different, dynamically adjusts the sweep speed of scan module.
For reaching above-mentioned purpose, the present invention provides a kind of scanning system in addition, is applicable to electronic installation, comprises at least: output device; Input unit has scanning element and scanning driving device, and wherein scanning element is in order to scanning document, and to produce view data, scanning driving device is connected with scanning element, in order to the sweep speed of gated sweep unit; And controller, be connected with scanning driving device and this output device, operation in order to the gated sweep drive unit, and accept view data, so that view data is sent to output device, its middle controller detects by scanning element and receives the input rate of view data and the transmitted image data output speed to output device, and when input rate and output speed are different, dynamically adjusts the sweep speed of scanning element.
The method of adjustment sweep speed of the present invention and scanning system thereof, mainly utilize controller to detect input rate and output speed, with automatic adjustment sweep speed, when the output speed of view data enough fast, then keep optimum scanning speed, slack-off when output speed, it is slack-off then suitably to adjust sweep speed, avoids scanning the phenomenon that stops to restart.And method of the present invention also can be after sweep speed be slack-off, when the output speed of discovery view data accelerates, promotes sweep speed to optimum speed, to reduce the scanning required time, can obtain best scanning and efficiency of transmission.
Description of drawings
Fig. 1: it is the structural representation of the scanning system of the present invention's first preferred embodiment.
Fig. 2: it is the flow chart of the adjustment sweep speed of the present invention's second preferred embodiment.
Fig. 3: it is the flow chart of the adjustment sweep speed of the present invention's the 3rd preferred embodiment.
Description of reference numerals in the above-mentioned accompanying drawing is as follows:
Scanning system: 1
Input unit: 11
Scanning element: 111
Cis: 1111
Drive unit: 112
Band mechanism of paper: 113
Band paper driving mechanism: 114
Controller: 12
Memory buffer: 121
Output device: 13
S21-28: the process step of adjusting sweep speed
S301-S311: another process step of adjusting sweep speed
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different modes, it does not depart from the scope of the present invention, and explanation wherein and the accompanying drawing usefulness that ought explain in itself, but not in order to restriction the present invention.
See also Fig. 1, it is the structural representation of the scanning system of the present invention's first preferred embodiment, as shown in the figure, scanning system 1 of the present invention is applicable to an electronic installation, for example: multifunctional paper feeding machine, but not as limit, at least comprise input unit 11, controller 12 and output device 13, controller 12 is connected with input unit 11 and output device 13, and output device 13 can be print engine (Printer engine), PC, USB disk or other devices for output or storage of multifunctional paper feeding machine.Input unit 11 comprises scanning element 111, scanning driving device 112, band mechanism of paper 113 and band paper driving mechanism 114.Wherein, band paper driving mechanism 114 can be but not be limited to a motor, be mainly used to 113 operations of rotating band mechanism of paper, make band mechanism of paper 113 rollable one files to be scanned, for scanning, and scanning element 111 is arranged at the below of band mechanism of paper 113 and can be a flat scanning machine, it has a cis 1111, can be for example contact-type imageing sensor (CIS) or charge coupled cell (CCD), and scanning driving device 112 can be but be not limited to a motor, be mainly used to driven sweep unit 111 operation, and the sweep speed of gated sweep unit 111, but make the view data of cis 1111 these files to be scanned of sensing of this scanning element 111.
Please consult Fig. 1 again, controller 12 of the present invention is connected with the scanning driving device 112 and the band paper driving mechanism 114 of input unit 11, operation in order to gated sweep drive unit 112 and band paper driving mechanism 114, when scanning a file, controller 12 can come driven sweep drive unit 112 and 114 operations of band paper driving mechanism according to the scan type that sets, make scanning driving device 112 come 111 pairs one files in driven sweep unit to scan according to the pairing sweep speed of setting of scan type, to produce a view data, and this view data that is produced will be sent in the controller 12, and be temporary in 121 inside, a memory buffer (memory buffer) earlier, if necessary, controller 12 can carry out image processing to view data, and the view data after will handling, be sent to output device 13, in this simultaneously controller 12 can detect scanning element 111 from this input unit 11 and receive the input rate of these view data and transmitted image data output speed to output device 13, and when this input rate and this output speed are different, for example: input rate is greater than output speed, or input rate is during less than output speed, controller 12 can recently dynamically be adjusted the sweep speed of scanning element 111 according to difference, and then reach best sweep speed, the situation that scanning driving device 112 must suspend does not take place in the scanning process and do not cause.
See also Fig. 2 and cooperate Fig. 1, wherein Fig. 2 is the flow chart of the adjustment sweep speed of the present invention's second preferred embodiment, as shown in the figure, at first, need to set earlier scan type, for example: black and white or chromoscan (step S21), then, controller 12 can start needed sweep speed (step S22) according to the scan type that sets, come 111 pairs one files in driven sweep unit to scan with driven sweep drive unit 112 according to the pairing sweep speed of setting of scan type, to produce a view data (step S23), and the view data that is produced will be sent in the controller 12, and be temporary in 121 inside, a memory buffer earlier, and controller 12 can carry out image processing to view data, and the view data after will handling, principle according to first in first out is sent to output device 13, in this simultaneously controller 12 can detect scanning element 111 from input unit 11 and receive the input rate of these view data and transmitted image data output speed (step S23) to output device 13, and judge input rate and output speed whether different (step S25), when controller 12 testing results are that input rate is when identical with output speed, then keep present sweep speed (step S26), follow-up then execution in step S24 is to detect input rate and output speed at any time.
Otherwise, when controller 12 is judged when finding that input rates and output speed are different, then can judge further that more whether input rate is greater than output speed by execution in step S27, when judged result when being, then downgrade the sweep speed (step S28) of scanning element 111, with avoid scanning element 111 transmit too much view data to the memory buffer 121 inside, and make the view data that is accumulated in 121 inside, memory buffer full, and then reach best sweep speed, the situation that scanning driving device 112 must suspend does not take place in the scanning process and do not cause.Otherwise, when the judged result of controller 12 in step S27 is that input rate is during less than output speed, then controller 12 can increase the sweep speed (step S29) of scanning element 111, but make scanning element 111 pick up speeds produce view data and be sent to controller 12, and be sent to output device 13, to reduce sweep time, obtain best scan transfer efficient.
See also Fig. 3 and cooperate Fig. 1, wherein Fig. 3 is the flow chart of the adjustment sweep speed of the present invention's the 3rd preferred embodiment, as shown in the figure, at first, need to set earlier scan type, for example: black and white or chromoscan (step S301), then, controller 12 can start needed sweep speed (step S302) according to the scan type that sets, come 111 pairs one files in driven sweep unit to scan with driven sweep drive unit 112 according to the pairing sweep speed of setting of scan type, to produce a view data (step S303), and this view data that is produced will be sent in the controller 12, and be temporary in 121 inside, a memory buffer earlier, and controller 12 can carry out image processing to view data, and the view data after will handling, principle according to first in first out is sent to output device 13, in this simultaneously controller 12 can detect scanning element 111 by input unit 11 and receive the input rate of these view data and transmitted image data output speed to output device 13, the capacity (step S304) of the image processing speed of inspection image data and detection of stored buffering area 121 inside.
Behind step S304, controller 12 will judge that whether input rate is greater than output speed, or whether input rate is greater than the image processing speed (step S305) of view data, when controller 12 judged results for not the time, controller 12 can judge that whether present sweep speed is (step S306) the most at a high speed again, if judged result is for the most then keeping present sweep speed (step S308), otherwise, if the sweep speed that judged result then increases scanning element 111 for not the time is to the most at a high speed, can be after sweep speed be slack-off, when finding that output speed accelerates, promote sweep speed to optimum speed (step S307), be sent to controller 12 but make scanning element 111 pick up speeds produce view data, and be sent to output device 13, to reduce sweep time, obtain best scan transfer efficient.
In step S305, when controller 12 testing results when being, controller 12 can judge whether the residual memory space of 121 inside, memory buffer is lower than a preset value (step S309) again, for example: the heap(ed) capacity of memory buffer 121 is 16M, and the preset value of its residual memory space is 1M, when judged result when being, promptly represent the residual memory space of 121 inside, memory buffer to be lower than preset value 1M, expression can cause the view data that is accumulated in 121 inside, memory buffer full if scan with present sweep speed again, therefore controller 12 can downgrade the sweep speed (step S310) of scanning element 111, full with the view data that prevents 121 inside, memory buffer, and do not cause scanning driving device 112 necessary time-outs not being taken place in the scanning process, can avoid scanning the phenomenon that stops to restart.
Otherwise, if step S309 judged result is not for the time, represent all right storing image data of residual memory space of 121 inside, memory buffer, may be that cause view data to be sent to the speed of output device 13 because of short duration data flow quantitative change is big slack-off, so controller 12 can be kept present sweep speed (step S311).
In sum, the method of adjustment sweep speed of the present invention and scanning system thereof, mainly utilize controller to detect input rate and output speed, with automatic adjustment sweep speed, enough fast when the output speed of view data, then keep optimum scanning speed, when output speed slack-off, it is slack-off then suitably to adjust sweep speed, avoids scanning the phenomenon that stops to restart.And method of the present invention also can be after sweep speed be slack-off, when the output speed of discovery view data accelerates, promotes sweep speed to optimum speed, to reduce the scanning required time, can obtain best scanning and efficiency of transmission.
The present invention must be appointed by those of ordinary skills and executes that the craftsman thinks and be to modify as all, does not take off the scope as the desire protection of attached claim institute.
Claims (17)
1. a method of adjusting sweep speed is applicable to an electronic installation, and this electronic installation has an one scan module and a controller, comprises step at least:
(a) this scan module scans a file, to produce a view data;
(b) this controller receives this view data, and this view data is sent to an output device;
(c) this controller detects and is received the input rate of this view data and transmitted the output speed of this view data to this output device by this scan module, and when this input rate and this output speed are different, dynamically adjusts the sweep speed of this scan module.
2. the method for adjustment sweep speed as claimed in claim 1, wherein this step (c) also comprises step (c1): when the controller testing result is this input rate when identical with this output speed, then keep the sweep speed of this scan module.
3. the method for adjustment sweep speed as claimed in claim 2, wherein also comprise step (c2) after this step (c1): when this controller testing result is this input rate and this output speed when different, then this controller will judge that whether this input rate is greater than this output speed again.
4. the method for adjustment sweep speed as claimed in claim 3 wherein also comprises step (c3) after this step (c2): when the judged result of step (c2) when being, then downgrade the sweep speed of this scanning element.
5. the method for adjustment sweep speed as claimed in claim 4 wherein also comprises step (c4) after this step (c3): when judged result for not the time, then increase the sweep speed of this scanning element.
6. the method for adjustment sweep speed as claimed in claim 1 wherein also comprises step (b1) in this step (b): this image data storage of being received in a memory buffer, and is carried out image processing to this view data.
7. the method for adjustment sweep speed as claimed in claim 6 wherein also comprises step (c1) in this step (c): detect image processing speed that this view data is handled and the capacity that detects this inside, memory buffer.
8. the method for adjustment sweep speed as claimed in claim 7 wherein also comprises step (c2) after this step (c1): this controller judge this input rate whether greater than this output speed or this input rate whether greater than this image processing speed.
9. the method for adjustment sweep speed as claimed in claim 8, wherein also comprise step (c3) after this step (c2): when judged result in step (c2) for not the time, this controller will judge that at present this sweep speed is whether for the most at a high speed again, if judged result is for the most then keeping present sweep speed, if the sweep speed that judged result then increases this scanning element for not the time is to the most at a high speed.
10. the method for adjustment sweep speed as claimed in claim 9, wherein also comprise step (c4) after this step (c3): when judged result in step (c2) when being, this controller will judge whether the residual memory space of this inside, memory buffer is lower than a preset value according to the capacity of this inside, memory buffer, when judged result when being, then downgrade the sweep speed of this scanning element, when judged result for not the time, then keep present sweep speed.
11. the method for adjustment sweep speed as claimed in claim 1, wherein this electronic installation is a multifunctional paper feeding machine.
12. a scanning system is applicable to an electronic installation, comprises at least:
One output device;
One input unit has one scan unit and one scan drive unit, and wherein this scanning element is in order to scan a file, and to produce a view data, this scanning driving device is connected with this scanning element, in order to control the sweep speed of this scanning element; And
One controller, be connected with this scanning driving device and this output device, in order to control the operation of this scanning driving device, and accept this view data, so that this view data is sent to this output device, wherein this controller detects and is received the input rate of this view data and transmitted the output speed of this view data to this output device by this scanning element, and when this input rate and this output speed are different, dynamically adjusts the sweep speed of this scanning element.
13. scanning system as claimed in claim 12 wherein detects this input rate when identical with this output speed when this controller, this controller will be kept the sweep speed of this scan module.
14. scanning system as claimed in claim 13, wherein when this controller is judged this input rate greater than this output speed, this controller will downgrade the sweep speed of this scanning element.
15. scanning system as claimed in claim 14, wherein when this controller is judged this input rate less than this output speed, this controller will increase the sweep speed of this scanning element.
16. scanning system as claimed in claim 12, this view data that wherein this controller received is temporary in the memory buffer.
17. scanning system as claimed in claim 12, wherein this electronic installation is a multifunctional paper feeding machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910252329 CN102088534B (en) | 2009-12-02 | 2009-12-02 | Scanning speed adjusting method and scanning system |
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| CN 200910252329 CN102088534B (en) | 2009-12-02 | 2009-12-02 | Scanning speed adjusting method and scanning system |
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| CN102088534B CN102088534B (en) | 2013-07-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580812A (en) * | 2014-12-29 | 2015-04-29 | 深圳市维新登拓医疗科技有限公司 | Scanner and control method thereof |
| CN108198402A (en) * | 2018-02-23 | 2018-06-22 | 深圳康奥兴业科技有限公司 | Region Intelligent unattended machine detecting system |
| CN114745503A (en) * | 2022-04-08 | 2022-07-12 | 陕西科技大学 | Scanning control method and line scanning camera |
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| CN1172393A (en) * | 1996-07-31 | 1998-02-04 | 明碁电脑股份有限公司 | Method for adjusting scanning speed of scanner |
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| US6335807B1 (en) * | 1998-11-30 | 2002-01-01 | Agfa Corporation | Scanner carriage stop/start artifact suppression system and method |
| KR100727944B1 (en) * | 2005-06-27 | 2007-06-14 | 삼성전자주식회사 | Apparatus and method for controlling scanner |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4748514A (en) * | 1986-12-22 | 1988-05-31 | Xerox Corporation | Variable rate scanning control |
| CN1172393A (en) * | 1996-07-31 | 1998-02-04 | 明碁电脑股份有限公司 | Method for adjusting scanning speed of scanner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580812A (en) * | 2014-12-29 | 2015-04-29 | 深圳市维新登拓医疗科技有限公司 | Scanner and control method thereof |
| CN104580812B (en) * | 2014-12-29 | 2018-11-27 | 深圳市维新登拓医疗科技有限公司 | scanner and its control method |
| CN108198402A (en) * | 2018-02-23 | 2018-06-22 | 深圳康奥兴业科技有限公司 | Region Intelligent unattended machine detecting system |
| CN108198402B (en) * | 2018-02-23 | 2021-05-04 | 深圳康奥兴业科技有限公司 | Regional intelligent unmanned aerial vehicle detection system |
| CN114745503A (en) * | 2022-04-08 | 2022-07-12 | 陕西科技大学 | Scanning control method and line scanning camera |
| CN114745503B (en) * | 2022-04-08 | 2024-01-12 | 陕西科技大学 | Scanning control method and line scanning camera |
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