CN100498218C - Direction displacement sensing method - Google Patents
Direction displacement sensing method Download PDFInfo
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- CN100498218C CN100498218C CNB2003101090420A CN200310109042A CN100498218C CN 100498218 C CN100498218 C CN 100498218C CN B2003101090420 A CNB2003101090420 A CN B2003101090420A CN 200310109042 A CN200310109042 A CN 200310109042A CN 100498218 C CN100498218 C CN 100498218C
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Abstract
The invention relates to a direction displacement sensing method. Sensing device A and B are installed with parallelism, the change of relative displacement between non light tight and light tight interphase channels and sensing devices A and B makes sensing devices A and B work orderly, creating high and low pulse signal of electrical level, by dealing with the signal in pulse signal of electrical level or computer, the direction of displacement, speed and position of channel are tested. The advantages are simple structure and technique, low cost.
Description
Technical field
The present invention relates to a kind of sensing detection method, particularly relate to the direction displacement sensing method.
Background technology
The measurement sensory that sensor can conveniently be applied to general displacement detects, and all that can conveniently be applied to liquid level, pressure, position, angle, speed etc. by proper transformation can be converted into the sensing detection of the concrete amount of various displacement situations, satisfy the needs that industry is made.Once someone's patent " contactless force measuring method and device (90108552.9) " of applying for, this patent relates to a kind of contactless force measuring method and device, be to utilize non-contact displacement sensor, two parts of sensor are placed in respectively to bear are not limited on the optional position of neutral surface along its axis direction by the framework pillar of dynamometry, by measuring on the framework pillar at a distance of measuring by dynamometry for the relative shift between 2 of the L, this device is by pick-up unit, computer system, the proof force sensor of interface circuit and demarcation usefulness is formed, measuring accuracy is higher, spends less.Someone's patent " method of Displacement Measurement and displacement transducer (98111834.8) " of applying for again, the method of Displacement Measurement and displacement transducer belong to the method and the device of displacement precision measurement, described method comprises sets up two cover coordinate systems, establishing time examination point in the cover coordinate system therein, set up displacement with at the uniform velocity and the mathematical model between mistiming of representing of time clock accumulation; Described device comprises that the input end of space-time chromacoder is connected with displacement generating device with clock respectively, and its output terminal is connected with the waveform finishing circuit.This patent can be easy to processing than the precision measurement displacement, and is anti-interference stronger, and is easy to intellectuality.But, their complex structures, manufacture craft is complicated, and the accuracy requirement height is set, and will be difficult to hold precision accurately.
Summary of the invention
The present invention mainly is that to have solved the sensing device structure that exists in the prior art complicated, and manufacture craft is complicated, and degree of accuracy is difficult to hold, and it is very unstable to work, antijamming capability a little less than, problem such as the scope of application is very wideless.
The present invention has also solved in the prior art design concept than challenge, has especially solved to lack in the prior art to keep in repair very complicated problems.
Above-mentioned purpose of the present invention mainly is achieved by following technical proposals: device is known in the inspection of first sensing and the alternate certain spacing of second sensing inspection knowledge device is placed side by side, printing opacity and the light tight alternate channel and the change of first sensing inspection knowledge device and second sensing inspection knowledge device generation relative displacement, first sensing inspection knowledge device and second sensing inspection knowledge device are worked in turn produce a series of high-low level pulse signal, and this detection signal reached in single-chip microcomputer or the computer handle, channel position is known device by described first sensing inspection and is set at positive dirction to the rotation of second sensing inspection knowledge device direction, each signal changes note to be done+and 1, it is negative direction to the rotation of first sensing inspection knowledge device direction that channel position is known device by described second sensing inspection, each signal changes note and does-1, detect the channel sense of displacement thus, speed and travel position, and by single-chip microcomputer or computer constantly with result of calculation output in time with control executing mechanism; At other the 3rd sensing inspection knowledge device that links to each other with single-chip microcomputer or computer that is provided with of described channel, when the 3rd sensing inspection knowledge device produces a reset pulse, make the display or the computer monitor that link to each other with single-chip microcomputer show minimum value or maximal value.Design concept advanced person of the present invention, simple in structure, technology is simple, the precision height, good stability, antijamming capability is strong, is convenient to and computing machine and digital instrument interface, uses maintenance very easy, implements easily.
As preferably, described channel position is known device A by described sensing inspection and is set at positive dirction to the rotation of sensing inspection knowledge device B direction, each signal changes note to be done+and 1, it is negative direction to the rotation of sensing inspection knowledge device A direction that channel position is known device B by described sensing inspection, each signal changes note and does-1, and constantly result of calculation is in time exported by single-chip microcomputer or computer.
As preferably, described channel position is known device A by described sensing inspection and is set at positive dirction to the rotation of sensing inspection knowledge device B direction, each signal changes note to be done+and 1, it is negative direction to the rotation of sensing inspection knowledge device A direction that channel position is known device B by described sensing inspection, each signal changes note and does-1, and handle by single-chip microcomputer or computer, by its corresponding judgement made from control executing mechanism.
As preferably, the direction displacement sensing apparatus, comprise that device A is known in the sensing inspection and device B is known in the sensing inspection, its light receiving component and light projector parts lay respectively at the both sides of channel, also comprise single-chip microcomputer or computer and be attached thereto digital processing display circuit and the direction displacement sensing apparatus that connects, it is characterized in that the inspection of described sensing knows device A and sensing inspection and know the alternate certain spacing of device B and place side by side, and corresponding described channel, the sensing pickup C of the usefulness that resets is arranged on by the channel.
As preferably, be a apart between described sensing inspection knowledge device A and sensing inspection knowledge device B, the width of the channel that described light and shade is equidistant alternate is 2a.Help producing pulse signal clocklike.
As preferably, described channel is placed on the support, and described channel lightproof part adopts ferrous material, and the light transmission part is hollow out or adopts light transmissive material.
As preferably, described sensing inspection is known device A, sensing inspection and is known device B and sensing and pick up device C and adopt photoelectric sensing assembly hall sensing assembly.
As preferably, described direction displacement sensing apparatus is that the right angle is fan-shaped, it is made up of two parts, photoelectric sensors A and photoelectric sensor B are placed on fan-shaped outer rim, photoelectric sensor C is placed on fan-shaped inner edge, wherein photoelectric sensors A and photoelectric sensor B respective channels are placed, and in the circular arc direction at a distance of certain distance.
As preferably, described direction displacement sensing apparatus is circular, it is made up of two parts, photoelectric sensors A and photoelectric sensor B are placed on circular outer rim, photoelectric sensor C is placed on circular inside, wherein photoelectric sensors A and photoelectric sensor B respective channels are placed, and in the circular arc direction at a distance of certain distance.
Therefore, the present invention has the design concept advanced person, and is simple in structure, and technology is simple, and is with low cost, the precision height, good stability, antijamming capability is strong, is convenient to and computing machine and digital instrument interface, use maintenance very easy, implement easily, working stability, characteristics such as applied widely.
Description of drawings
Accompanying drawing 1 is a kind of transducer arrangement configuration synoptic diagram of the present invention;
Accompanying drawing 2 is a kind of sensor device command execution synoptic diagram of the present invention;
Accompanying drawing 3 is another kind of transducer arrangement configuration synoptic diagram of the present invention.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1: the apparatus and method that are applied to position, the angle sensing of switch door, the direction displacement transducer is placed the position sensing of common single fan turn-off door, as shown in Figure 1, if the present position is the door standard-sized sheet among the figure, when b turns among the figure a position is the door standard-sized sheet, and photoelectric sensors A is installed in the position as described in Figure 1, photoelectric sensor B and photoelectric sensor C, wherein photoelectric sensors A and photoelectric sensor B are in a plurality of channel positions of rotation frequency modulated light sheet, its light receiving component and light projector parts lay respectively at the both sides of channel, also comprise single-chip microcomputer or computer and be attached thereto digital processing display circuit and the direction displacement sensing apparatus that connects, the spacing of photoelectric sensors A and the alternate a of photoelectric sensor B is placed side by side, and corresponding the equidistant alternate width of described light and shade is the channel of 2a, described channel is placed on the support, described channel lightproof part adopts ferrous material, the light transmission part is a hollow out, and the sensing pickup C of the usefulness that resets is arranged on by the channel.Photoelectric sensors A and photoelectric sensor B constantly produce pulse electrical signal in switch door process, the setting overall process of opening the door produces 100 pulse signals, channel position is rotated to photoelectric sensor B direction by photoelectric sensors A and is set at positive dirction, each signal changes note to be done+and 1, it is negative direction that channel position is rotated to the photoelectric sensors A direction by described photoelectric sensor B, each signal changes note and does 1, and constantly result of calculation is in time exported by single-chip microcomputer or computer, the position shows 0-100 by display respectively to opening position from closing the door, then " 0 " represents Men Weiguan, on behalf of door, " 100 " be standard-sized sheet, when being installed in standard-sized sheet, photoelectric sensor C (as described in Figure 1) produces a reset pulse, and can make display accurately be shown as " 100 " this moment, its purpose is that this kind sensor is when contingent outage, owing to causing it, the change of door position shows numerical value and actual door position phase deviation, the purpose that this photoelectric sensor C settles is (switch) and once automatically resets by force, guarantees this angle level sensor operate as normal.
When using, described channel position is rotated to photoelectric sensor B direction by described photoelectric sensors A and is set at positive dirction, each signal changes note to be done+and 1, it is negative direction that channel position is rotated to the photoelectric sensors A direction by described photoelectric sensor B, each signal changes note and does-1, and handle by single-chip microcomputer or computer, by its corresponding judgement made from control executing mechanism.
Embodiment 2: be applied to direction displacement sensing apparatus and method on the digital setting controller of mechanical to-and-fro movement, this direction displacement sensing apparatus is circular, photoelectric sensors A, photoelectric sensor B and photoelectric sensor C place in turn from the outer rim of direction displacement sensing apparatus, wherein photoelectric sensors A and photoelectric sensor B respective channels are placed, and in the circular arc direction at a distance of certain distance; Photoelectric sensor C is placed on the channel, and its principle of work is with embodiment 1.As Fig. 2, shown in Figure 3, the to-and-fro movement direction of passage displacement transducer of worktable is converted into and send display to show after pulse signal send the monolithic computer to handle, and compare with manual setting value, when displayed value is when manually setting initial value, by 1 work of monolithic computer instruction actuator, output state instruction 1, when displayed value is when manually setting end value, by 2 work of monolithic computer instruction actuator, output state instruction 2, the actual to-and-fro movement that worktable is big is instructed 1 and the instruction 2 and the control of extra order situation, the motion conditions of worktable is subjected to the monolithic computer to set digital situation to control, control accuracy recipient determines to the designing institute of displacement transducer, and is associated with the movement inertia of brake and worktable.
Embodiment 3: be applied to full digital code safety cabinet coded lock, principle is with embodiment 1 and embodiment 2.Opening knob as displacement transducer among the embodiment 2 and safety cabinet combines, promptly rotating safety cabinet unlatching knob send the monolithic computer to handle by sensor generation sequential pulse, and show by display, when displayed value respectively with manual setting value a, b, c is identical and keep certain setting-up time, then by actuator 1 output order opening safety cabinet, otherwise, by actuator 2 output orders.Implement comprehensively not report to the police, this safety cabinet password is once setting, and non-manufacturer is got rid of, and non-ly relies on correct establishing method not open in person.
Claims (2)
1. direction displacement sensing method, it is characterized in that device (A) is known in the inspection of first sensing and the alternate certain spacing of second sensing inspection knowledge device (B) is placed side by side, the change that relative displacement takes place device (B) is known in printing opacity and light tight alternate channel and first sensing inspection knowledge device (A) and the inspection of second sensing, first sensing inspection knowledge device (A) and second sensing inspection knowledge device (B) are worked in turn produce a series of high-low level pulse signal, and this detection signal reached in single-chip microcomputer or the computer handle, channel position is known device (A) by described first sensing inspection and is set at positive dirction to the rotation of second sensing inspection knowledge device (B) direction, each signal changes note to be done+and 1, channel position is known device (B) by described second sensing inspection and is negative direction to the rotation of first sensing inspection knowledge device (A) direction, each signal changes note and does-1, detect the channel sense of displacement thus, speed and travel position, and by single-chip microcomputer or computer constantly with result of calculation output in time with control executing mechanism; At other the 3rd sensing inspection knowledge device (C) that links to each other with single-chip microcomputer or computer that is provided with of described channel, when the 3rd sensing inspection knowledge device (C) produces a reset pulse, make the display or the computer monitor that link to each other with single-chip microcomputer show minimum value or maximal value.
2. direction displacement sensing apparatus that uses direction displacement sensing method as claimed in claim 1, comprise that device (A) is known in the inspection of first sensing and device (B) is known in the inspection of second sensing, its light receiving component and light projector parts lay respectively at the both sides of channel, also comprise single-chip microcomputer or computer and be attached thereto the digital processing display circuit that connects, it is characterized in that the direction displacement sensing apparatus is that the right angle is fan-shaped or circular, device (A) is known in described first sensing inspection and the outer rim that device (B) is placed on fan-shaped outer rim or circle is side by side known in the inspection of second sensing, and in the circular arc direction is a apart, and corresponding described channel, the width of the channel that light and shade is equidistant alternate is 2a, and the 3rd sensing inspection of the usefulness that resets is known device (C) and is arranged on fan-shaped inner edge or circular inside; Described channel is placed on the support, and described channel lightproof part adopts ferrous material, and the light transmission part is hollow out or adopts light transmissive material; Device (B) is known in described first sensing inspection knowledge device (A), the inspection of second sensing and device (C) employing photoelectric sensing assembly is known in the inspection of the 3rd sensing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101090420A CN100498218C (en) | 2003-12-01 | 2003-12-01 | Direction displacement sensing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101090420A CN100498218C (en) | 2003-12-01 | 2003-12-01 | Direction displacement sensing method |
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| Publication Number | Publication Date |
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| CN1624423A CN1624423A (en) | 2005-06-08 |
| CN100498218C true CN100498218C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101090420A Expired - Fee Related CN100498218C (en) | 2003-12-01 | 2003-12-01 | Direction displacement sensing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102538651B (en) * | 2011-12-30 | 2014-04-30 | 中国航天科技集团公司第六研究院第十一研究所 | Displacement sensor width measuring method achieved by adopting finite state machine |
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2003
- 2003-12-01 CN CNB2003101090420A patent/CN100498218C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| EPC-755A微型光电编码器及其应用. 赵峰.国外电子元器件，第1期. 2000 |
| EPC-755A微型光电编码器及其应用. 赵峰.国外电子元器件，第1期. 2000 * |
| 旋转编码器在闸门控制系统中的应用. 肖志怀等.仪器仪表学报，第23卷第5期. 2002 |
| 旋转编码器在闸门控制系统中的应用. 肖志怀等.仪器仪表学报，第23卷第5期. 2002 * |
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| CN1624423A (en) | 2005-06-08 |
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Granted publication date: 20090610 Termination date: 20111201 |