CN102680727B - Real-time detecting instrument for two-shaft rotating angle differences - Google Patents
Real-time detecting instrument for two-shaft rotating angle differences Download PDFInfo
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- CN102680727B CN102680727B CN201210163511.6A CN201210163511A CN102680727B CN 102680727 B CN102680727 B CN 102680727B CN 201210163511 A CN201210163511 A CN 201210163511A CN 102680727 B CN102680727 B CN 102680727B
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Abstract
The invention relates to a detecting device, in particular to a real-time detecting instrument for two-shaft rotating angle differences. The real-time detecting instrument for the two-shaft rotating angle differences comprises encoders, D triggers, NAND gates, binary counters, bi-stable latches, a binary adder, a binary-BCD (binary-coded decimal) code converter, decoders and nixie tubes. The encoders include an encoder I directly connected with an output shaft of a mechanism I and an encoder II directly connected with an output shaft of a mechanism II, the encoder I and the encoder II respectively collect rotating angle signals of the output shaft of the mechanism I and of the output shaft of the mechanism II and convert the rotating angle signals into electric signals to pass through the D trigger I, the D trigger II, the NAND gate I, the NAND gate II, the NAND gate III, the NAND gate IV, the binary counter I, the binary counter II, the bi-stable latch I and the bi-stable latch II, differences of pulse numbers are obtained through computing of the binary adder, and the nixie tubes are used for displaying the differences of the pulse numbers by the aid of the binary-BCD code converter and the decoders. The two-shaft rotating angle differences at the same moment can be detected by the same instrument, defects of the prior art are overcome, and detecting accuracy is improved effectively.
Description
Technical field
The present invention relates to a kind of detecting instrument, especially a kind of detector for detection of diaxon outer corner difference.
Background technology
Need diaxon rotating speed identical, can be by its rotating speed of synchronous mechanism control, but whether identical or in error range through the diaxon rotating speed of synchronous mechanism control, need could determine by measuring, but the surveying instrument that is specifically designed to real-time measurement diaxon speed discrepancy useless also in the market, only can measure by tachometer of measuring the rotating speed of a rotating shaft, after measure again the rotating speed of another rotating shaft with same tachometer of measuring, whether the numeric ratio by twice measurement is identical or in error range compared with diaxon rotating speed, this measuring method has some limitations, diaxon rotating speed is not measured at synchronization, very easily because not driving in the same time the power of drive unit of two rotating shafts to change or extraneous factor impact is measured, whether the data of measuring often can not be reacted diaxon rotating speed really and accurately identical or in error range.If adopt two tachometer of measuring to measure diaxon rotating speed at synchronization simultaneously, also can be because of the error effect measuring accuracy between different tachometer of measuring.Above-mentioned two kinds of measuring methods measure and all will just can draw difference by artificial calculating afterwards in addition.
Summary of the invention
The object of this invention is to provide a kind of synchronization diaxon outer corner difference, measuring accuracy real-time diaxon outer corner difference detector high, easy to use measured.
The technical scheme that the present invention adopts is for achieving the above object: a kind of diaxon outer corner difference detector in real time, this detector comprises scrambler, d type flip flop, Sheffer stroke gate, binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, code translator and charactron, described scrambler comprise the scrambler I direct-connected with mechanical mechanism I output shaft and with the direct-connected scrambler II of mechanical mechanism II output shaft, described d type flip flop comprises the d type flip flop I being connected with scrambler I output terminal and the d type flip flop II being connected with scrambler II output terminal, described Sheffer stroke gate comprises Sheffer stroke gate I, Sheffer stroke gate II, Sheffer stroke gate III, Sheffer stroke gate IV, Sheffer stroke gate I, the input end of Sheffer stroke gate II respectively with scrambler I, the output terminal of d type flip flop I connects, Sheffer stroke gate III, the input end of Sheffer stroke gate IV respectively with scrambler II, the output terminal of d type flip flop II connects, described binary counter comprises binary counter I and binary counter II, the input end of binary counter I and Sheffer stroke gate I, the output terminal of Sheffer stroke gate II connects, the input end of binary counter II and Sheffer stroke gate III, the output terminal of Sheffer stroke gate IV connects, bi-stable latch comprises the bi-stable latch I being connected with the output terminal of binary counter I and the bi-stable latch II being connected with the output terminal of binary counter II, bi-stable latch I, the output terminal of bi-stable latch II is connected with two groups of input ends of binary adder respectively, the output terminal of binary adder is connected with the input end of scale-of-two-BCD code converter, code translator comprises code translator I and code translator II, charactron comprises charactron I and charactron II, the input end of code translator I is connected with the output terminal of binary adder and the output terminal of scale-of-two-BCD code converter respectively, the output terminal of code translator I is connected with charactron I, the input end of code translator II is connected with the output terminal of scale-of-two-BCD code converter, the output terminal of code translator II is connected with charactron II.
Further technical scheme of the present invention is: between described binary counter I and binary counter II, be provided with the switch I for zero clearing, the first end of switch I is connected with binary counter I, binary counter II respectively, the second termination power or the ground connection of switch I.
Further technical scheme more of the present invention is: between described bi-stable latch I and bi-stable latch II, be provided with the switch II for a certain moment data of latch, switch II first end is connected with bi-stable latch I, bi-stable latch II respectively, the second termination power or the ground connection of switch II.
Owing to adopting said structure, the present invention's real-time diaxon outer corner difference detector has following beneficial effect:
1, can measure synchronization diaxon outer corner difference, measuring accuracy is high
The scrambler I of the present invention's real-time diaxon outer corner difference detector, scrambler II is distinguished collection machinery mechanism I output shaft and the angular signal with mechanical mechanism II output shaft, angular signal is transferred to after pulse signal through d type flip flop I II, Sheffer stroke gate I II III IV, binary counter I II, bi-stable latch I II, carry out subtraction (subtrahend negate adds 1 just can become additive operation subtraction) by binary adder, obtain the difference of umber of pulse, show the difference (often turning umber of pulse and can calculate diaxon outer corner difference according to scrambler again) of umber of pulse with charactron by scale-of-two-BCD code converter and code translator, can go out synchronization diaxon outer corner difference by same apparatus measures, overcome the defect that background technology exists, effectively improve measuring accuracy high.
2, simple in structure, easy to use
The present invention's real-time diaxon outer corner difference detector is connected to form by universal elements such as scrambler, d type flip flop, Sheffer stroke gate, binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, code translator and charactrons, one-piece construction is simple, cost is low, adopt same instrument can measure synchronization diaxon outer corner difference, without repeatedly measuring, very easy to use.
Below in conjunction with drawings and Examples, the real-time diaxon outer corner difference of the present invention detector is described further.
Brief description of the drawings
Fig. 1 is the real-time diaxon outer corner difference of the present invention detector circuit theory diagrams.
Main element label declaration: 1-scrambler I, 2-mechanical mechanism I, 3-mechanical mechanism II, 4-scrambler II, 5-d type flip flop I, 6-d type flip flop II, 7-Sheffer stroke gate I, 8-Sheffer stroke gate II, 9-Sheffer stroke gate III, 10-Sheffer stroke gate IV, 11-binary counter I, 12-binary counter II, 13-bi-stable latch I, 14-bi-stable latch II, 15-binary adder, 16-scale-of-two-BCD code converter, 17-code translator I, 18-code translator II, 19-charactron I, 20-charactron II, K1-switch I, K2-switch II.
Embodiment
As shown in Figure 1, the real-time diaxon outer corner difference of the present invention detector (being called for short " detector " below), this detector comprises scrambler, d type flip flop, Sheffer stroke gate, binary counter, bi-stable latch, binary adder 15, scale-of-two-BCD code converter 16, code translator and charactron.
Described scrambler comprise the scrambler I 1 direct-connected with mechanical mechanism I 2 output shafts and with the direct-connected scrambler II 4 of mechanical mechanism II 3 output shafts.Described d type flip flop comprises the d type flip flop I 5 being connected with scrambler I 1 output terminal and the d type flip flop II 6 being connected with scrambler II 4 output terminals, the output terminal of scrambler I 1 is connected with input end and the control end of d type flip flop I 5 respectively, and the output terminal of scrambler II 4 is connected with input end and the control end of d type flip flop II 6 respectively.
Described Sheffer stroke gate comprises Sheffer stroke gate I 7, Sheffer stroke gate II 8, Sheffer stroke gate III 9, Sheffer stroke gate IV 10, the input end of Sheffer stroke gate I 7, Sheffer stroke gate II 8 is connected with the output terminal of scrambler I 1, d type flip flop I 5 respectively, and the input end of Sheffer stroke gate III 9, Sheffer stroke gate IV 10 is connected with the output terminal of scrambler II 4, d type flip flop II 6 respectively.Each d type flip flop forms phase discriminator with two corresponding Sheffer stroke gates that are connected, and is used for judging rotating.Wherein, Sheffer stroke gate I 7, Sheffer stroke gate II 8, Sheffer stroke gate III 9, Sheffer stroke gate IV 10 are equipped with two input pins, a wherein input pin of Sheffer stroke gate I 7, Sheffer stroke gate II 8 is connected with the A phase pin of scrambler I 1, another input pin of Sheffer stroke gate I 7, Sheffer stroke gate II 8 is connected with the output connecting pin of d type flip flop I 5, a wherein input pin of Sheffer stroke gate III 9, Sheffer stroke gate IV 10 is connected with the A phase pin of scrambler II 4, and another input pin of Sheffer stroke gate III 9, Sheffer stroke gate IV 10 is connected with the output connecting pin of d type flip flop II 6.
Described binary counter comprises binary counter I 11 and binary counter II 12, the input end of binary counter I 11 and Sheffer stroke gate I 7, the output terminal of Sheffer stroke gate II 8 connects, the input end of binary counter II 12 and Sheffer stroke gate III 9, the output terminal of Sheffer stroke gate IV 10 connects, between described binary counter I 11 and binary counter II 12, be provided with the switch I K1 for zero clearing, the first end of switch I K1 respectively with binary counter I 11, the LD pin of binary counter II 12 connects, the first end of switch I K1 is ground connection after contact resistance also, the second termination power (5V direct current) or the ground connection of switch I K1.A, the B of binary counter I 11 and binary counter II 12, the equal ground connection of C, D.
Described bi-stable latch comprises the bi-stable latch I 13 being connected with the output terminal of binary counter I 11 and the bi-stable latch II 14 being connected with the output terminal of binary counter II 12, and the output terminal of bi-stable latch I 13, bi-stable latch II 14 is connected with two groups of input ends of binary adder 15 respectively.Between described bi-stable latch I 13 and bi-stable latch II 14, be provided with the switch II K2 for a certain moment data of latch, switch II K2 first end is connected with the C pin of bi-stable latch I 13, bi-stable latch II 14 respectively, the first end of switch II K2 is ground connection after contact resistance also, the second termination power (5V direct current) or the ground connection of switch II K2.
The output terminal of described binary adder 15 is connected with the input end of scale-of-two-BCD code converter 16.Code translator comprises code translator I 17 and code translator II 18, and charactron comprises charactron I 19 and charactron II 20.The input end of code translator I 17 is connected with the output terminal of binary adder 15 and the output terminal of scale-of-two-BCD code converter 16 respectively, wherein, the A pin of code translator I 17 input ends is connected with ∑ 1 pin of binary adder 15 output terminals, B, C, the D pin of code translator I 17 input ends are connected with Y1, Y2, the Y3 pin of scale-of-two-BCD code converter 16 output terminals respectively, and the output terminal of code translator I 17 is connected with charactron I 19.The input end of code translator II 18 is connected with Y4, the Y5 pin of the output terminal of scale-of-two-BCD code converter 16, the C of code translator II 18, D pin ground connection, and the output terminal of code translator II 18 is connected with charactron II 20.Between described code translator I 17 and charactron I 19 and between code translator II 18 and charactron II 20, be respectively equipped with resistance.
When work, mechanical mechanism I 2 output shafts and mechanical mechanism II 3 output shafts rotate under the drive of drive unit, scrambler I 1 is direct-connected on mechanical mechanism I 2 output shafts, scrambler II 4 is direct-connected on mechanical mechanism II 3 output shafts, can detect the corner of corresponding rotation axle by scrambler I II, if the corner of diaxon is different, the umber of pulse that scrambler I II is sent is different, the poor reflection diaxon corner extent of the umber of pulse of scrambler I II.Scrambler I 1, scrambler II 4 gathers respectively angular signal, and angular signal is converted into pulse signal, the pulse signal of both sides is respectively by each self-corresponding d type flip flop, after Sheffer stroke gate, enter binary counter I 11, binary counter II 12, again respectively by binary counter I 11, binary counter II 12 enters bi-stable latch I 13, bi-stable latch II 14, bi-stable latch I 13, bi-stable latch II 14 is inputted data binary adder 15 again and is calculated (the subtraction of binary number: subtrahend negate adds 1 just can become additive operation subtraction, so with binary adder), calculate scrambler I 1, the difference of the umber of pulse that scrambler II 4 is exported, through scale-of-two-BCD code converter 16 and code translator I 17, after code translator II 18, the difference of umber of pulse is presented in charactron I 19 and charactron II 20.As long as need zero clearing binary counter internal data to press switch I K1, need to show the difference of the umber of pulse in a certain moment, at a time press switch II K2, the difference of the umber of pulse in this moment can be presented on charactron.Can calculate the poor of mechanical mechanism I 2 output shaft corner N1 and mechanical mechanism II 3 output shaft corner N2 by the difference of umber of pulse.
Can improve accuracy of detection if increase quadruplicated frequency circuit, the measurable hard-over of the present embodiment is poor is 4 bits, be hard-over poor be 15 umber of pulses, if show that outer corner difference is greater than 15 umber of pulses, to increase respective chip, as binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, code translator and charactron.
As variation of the present invention, binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, code translator and charactron are not limited to the cited quantity of above-described embodiment, the form that above-described embodiment is enumerated is only a minimum unit of the present invention, if show that outer corner difference is greater than 15 umber of pulses, as long as increase respective chip, as binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, the quantity of code translator and charactron, as long as the conversion done within the scope of the invention all belongs to category of the present invention.
Claims (3)
1. a real-time diaxon outer corner difference detector, it is characterized in that, this detector comprises scrambler, d type flip flop, Sheffer stroke gate, binary counter, bi-stable latch, binary adder, scale-of-two-BCD code converter, code translator and charactron, described scrambler comprise the scrambler I direct-connected with mechanical mechanism I output shaft and with the direct-connected scrambler II of mechanical mechanism II output shaft, described d type flip flop comprises the d type flip flop I being connected with scrambler I output terminal and the d type flip flop II being connected with scrambler II output terminal, the A phase output terminal of scrambler I, B phase output terminal respectively with the D input end of d type flip flop I, CP input end connects, the A phase output terminal of scrambler II, B phase output terminal respectively with the D input end of d type flip flop II, CP input end connects, described Sheffer stroke gate comprises Sheffer stroke gate I, Sheffer stroke gate II, Sheffer stroke gate III, Sheffer stroke gate IV, Sheffer stroke gate I, Sheffer stroke gate II, Sheffer stroke gate III, Sheffer stroke gate IV are equipped with two input ends, one of them input end of Sheffer stroke gate I, Sheffer stroke gate II is connected with the A phase output terminal of scrambler I, another input end of Sheffer stroke gate I is connected with the high level output end of d type flip flop I, and another input end of Sheffer stroke gate II is connected with the low level output end of d type flip flop I, one of them input end of Sheffer stroke gate III, Sheffer stroke gate IV is connected with the A phase output terminal of scrambler II, another input end of Sheffer stroke gate III is connected with the high level output end of d type flip flop II, and another input end of Sheffer stroke gate IV is connected with the low level output end of d type flip flop II, described binary counter comprises binary counter I and binary counter II, and the CPU input end of binary counter I is connected with the output terminal of Sheffer stroke gate I, and the CPD input end of binary counter I is connected with the output terminal of Sheffer stroke gate II, the CPU input end of binary counter II is connected with the output terminal of Sheffer stroke gate IV, and the CPD input end of binary counter II is connected with the output terminal of Sheffer stroke gate III, bi-stable latch comprises the bi-stable latch I being connected with the output terminal of binary counter I and the bi-stable latch II being connected with the output terminal of binary counter II, bi-stable latch I, the output terminal of bi-stable latch II is connected with two groups of input ends of binary adder respectively, the output terminal of binary adder is connected with the input end of scale-of-two-BCD code converter, code translator comprises code translator I and code translator II, charactron comprises charactron I and charactron II, the input end of code translator I is connected with the output terminal of binary adder and the output terminal of scale-of-two-BCD code converter respectively, the output terminal of code translator I is connected with charactron I by resistance, the input end of code translator II is connected with the output terminal of scale-of-two-BCD code converter, the output terminal of code translator II is connected with charactron II by resistance.
2. real-time diaxon outer corner difference detector as claimed in claim 1, it is characterized in that, between described binary counter I and binary counter II, be provided with the switch I for zero clearing, the first end of switch I is connected with binary counter I, binary counter II respectively, the second termination 5V direct current or ground connection of switch I.
3. real-time diaxon outer corner difference detector as claimed in claim 1, it is characterized in that, between described bi-stable latch I and bi-stable latch II, be provided with the switch II for a certain moment data of latch, switch II first end is connected with bi-stable latch I, bi-stable latch II respectively, the second termination 5V direct current or ground connection of switch II.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163511.6A CN102680727B (en) | 2012-05-24 | 2012-05-24 | Real-time detecting instrument for two-shaft rotating angle differences |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210163511.6A CN102680727B (en) | 2012-05-24 | 2012-05-24 | Real-time detecting instrument for two-shaft rotating angle differences |
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| CN102680727A CN102680727A (en) | 2012-09-19 |
| CN102680727B true CN102680727B (en) | 2014-07-30 |
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| JP4725201B2 (en) * | 2005-06-03 | 2011-07-13 | トヨタ自動車株式会社 | Rotational speed detection device and control device for automatic transmission provided with the same |
| DE102006061580A1 (en) * | 2006-12-27 | 2008-07-03 | Robert Bosch Gmbh | Rotating shaft speed determining method, involves transferring impulse to controller, and correcting numerical value with correction value that is determined from comparison of actual time period with reference-time period |
| SE531497C2 (en) * | 2007-07-18 | 2009-04-28 | Ap Fixturlaser Ab | Method and apparatus for measuring alignment alignment of shafts |
| CN202661062U (en) * | 2012-05-24 | 2013-01-09 | 柳州职业技术学院 | Real-time two-shaft rotation angle difference detector |
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