CN205191132U - Infrared device support and intelligent tape measure of tape error bit architecture - Google Patents
Infrared device support and intelligent tape measure of tape error bit architecture Download PDFInfo
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- CN205191132U CN205191132U CN201520763477.5U CN201520763477U CN205191132U CN 205191132 U CN205191132 U CN 205191132U CN 201520763477 U CN201520763477 U CN 201520763477U CN 205191132 U CN205191132 U CN 205191132U
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Abstract
The utility model discloses an infrared device support and intelligent tape measure of tape error bit architecture is through the first support that includes the support body and/or the infrared device locating hole dislocation set on the second support for the block infrared device in the infrared device of infrared device support locating hole also stagger, has avoided determining the infrared reading device alignment setting of tape band homonymy, leads to the not enough defect in space of infrared device support.
Description
Technical field
The utility model relates to Intelligent measuring tape technical field, in particular a kind of infrared transceiver device support with misconstruction and Intelligent measuring tape.
Background technique
Gray code belongs to Reliability codes, is a kind of coded system of error minimization.Such as, because although natural binary code directly can convert analogue signal to by D/A converter, in some situation, when being converted to 4 from metric 3, each of Binary Code all will become, and digital circuit can be made to produce very large peak current pulse.Gray code does not then have this shortcoming, when it changes between adjacent bit, only has one to change.It greatly reduces by a state obscuring to logic during next state.Two interblocks adjacent due to this coding only have a difference, thus in the conversion of the straight-line displacement amount-digital quantity for direction, when straight-line displacement amount generation minor variations is (and when may cause digital quantity to change, Gray code only changes one, more reliable compared with the situation simultaneously changing two or multidigit of encoding with other like this, the possibility of makeing mistakes can be reduced.
In prior art, the Gray of employing code-disc is used for detecting or counting more; read Gray's code-disc at encoder or brushgear and often there will be the phenomenon of jumping brush or leaking brush; namely because brushgear rotating speed is too fast; occur that brushgear bounced certain Gray code; cause the phenomenon of miscount, be unfavorable for the use of Gray code.Meanwhile, Gray's code-disc is arranged in Intelligent measuring tape body and takies comparatively large inner space, make device volume larger.
When being arranged in tape by Gray code, read the Gray code on tape band by infrared transceiver device.If will just to the double-edged infrared transceiver device of tape band just to setting, when the infrared transmitting that then infrared transceiver device of tape band side sends crosses tape band, the infrared light reception result of the infrared transceiver device of opposite side can be caused to change, affect measurement result, and the infrared reading device alignment of the same side is arranged, and causes the insufficient space of infrared transceiver device support.
Therefore, prior art has yet to be improved and developed.
Model utility content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of infrared transceiver device support with misconstruction and Intelligent measuring tape, be intended to the infrared reading device alignment solved tape band homonymy arrange, cause the defect of the insufficient space of infrared transceiver device support.
The technical solution of the utility model is as follows:
A kind of infrared transceiver device support with misconstruction, wherein, comprise rack body, described rack body comprises the first support and the second support that fasten and arrange, multiple infrared facility positioning holes for fixing infrared transceiver device that described first support and/or described second support shift to install.
The infrared transceiver device support of described band misconstruction, wherein, described first support is provided with 3 infrared facility positioning holes, and the link group triangularity between infrared facility positioning hole.
The infrared transceiver device support of described band misconstruction, wherein, described second support is provided with 3 infrared facility positioning holes, and the link group triangularity between infrared facility positioning hole.
The infrared transceiver device support of described band misconstruction, wherein, described first support is provided with the fixed hole for fixing the second support.
The infrared transceiver device support of described band misconstruction, wherein, described second support is provided with the fixing column suitable with fixed hole.
The infrared transceiver device support of described band misconstruction, wherein, the size of the infrared facility positioning hole on described first support and the size of infrared transceiver device suitable.
The infrared transceiver device support of described band misconstruction, wherein, the size of the infrared facility positioning hole on described second support and the size of infrared transceiver device suitable.
A kind of Intelligent measuring tape, wherein, comprises the infrared transceiver device support of described band misconstruction, also comprise Intelligent measuring tape body, and being arranged on the tape band also can extracted out in described Intelligent measuring tape body, described tape band is provided with Gray code, and described Gray code repeats to arrange by designated period; The infrared transceiver device for reading Gray code on tape band is also provided with in described Intelligent measuring tape body; Described infrared transceiver device is fastened in the infrared facility positioning hole of infrared transceiver device support.
Beneficial effect: the infrared transceiver device support of band misconstruction described in the utility model and Intelligent measuring tape, by the first support included by rack body and/or the infrared facility positioning hole on the second support are shifted to install, the infrared transceiver device be fastened in the infrared facility positioning hole of infrared transceiver device support is also staggered, avoid and certainly the infrared reading device alignment of tape band homonymy is arranged, cause the defect of the insufficient space of infrared transceiver device support.
Accompanying drawing explanation
Fig. 1 is the infrared transceiver device support of band misconstruction described in the utility model and the exploded perspective view of infrared transceiver device preferred embodiment.
Fig. 2 is the structural representation of Intelligent measuring tape preferred embodiment described in the utility model.
Fig. 3 is the exploded perspective view of Intelligent measuring tape preferred embodiment described in the utility model.
Fig. 4 is the schematic diagram in tape band front in Intelligent measuring tape preferred embodiment described in the utility model.
Fig. 5 is the schematic diagram at the tape band back side in Intelligent measuring tape preferred embodiment described in the utility model.
Embodiment
The utility model provides a kind of infrared transceiver device support with misconstruction and Intelligent measuring tape, for making the purpose of this utility model, technological scheme and effect clearly, clearly, further describes below to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, it is the infrared transceiver device support of band misconstruction described in the utility model and the exploded perspective view of infrared transceiver device preferred embodiment.The infrared transceiver device support of described band misconstruction, wherein, comprise rack body 400, described rack body 400 comprises the first support 401 and the second support 402 fastening and arrange, multiple infrared facility positioning holes for fixing infrared transceiver device 300 that described first support 401 and/or described second support 402 shift to install.
During concrete enforcement, described first support 401 is provided with 3 infrared facility positioning holes, be designated as the first support first infrared facility positioning hole 4011 respectively, first support second infrared facility positioning hole 4012 and the first support the 3rd infrared facility positioning hole 4013, and the link group triangularity between infrared facility positioning hole.Described second support 402 is provided with 3 infrared facility positioning holes, be designated as the second support first infrared facility positioning hole 4021 respectively, second support second infrared facility positioning hole 4022 and the second support the 3rd infrared facility positioning hole 4023, and the link group triangularity between infrared facility positioning hole.The size of the infrared facility positioning hole on described first support 401 and the size of infrared transceiver device 300 suitable.Same, the size of the infrared facility positioning hole on described second support 402 and the size of infrared transceiver device 300 suitable.
Described first support 401 is also provided with the fixed hole 4014 for fixing the second support, described second support is provided with the fixing column 4024 suitable with fixed hole 4014, easily the first support 401 and the second support 402 can be fastened like this, again the FPC circuit board being provided with infrared transceiver device is wrapped on rack body 400 afterwards, and infrared transceiver device is fastened in infrared facility positioning hole.Simultaneously, be labeled between FPC circuit board by this tape band passage 410 in tape band passage 410(Fig. 1 that namely space between first support 401 and the second support 402 is formed not is illustrate that this passage is formed between FPC circuit board, but be after the first support 401 and the second support 402 fasten, space between the two).
By the infrared reading device of rack body 400 homonymy is shifted to install, make the space of infrared transceiver device support sufficient, be convenient to arrange more infrared transceiver device.
Based on above-described embodiment, the utility model additionally provides a kind of Intelligent measuring tape.Please simultaneously see Fig. 1-Fig. 3, wherein Fig. 1 is the infrared transceiver device support of band misconstruction described in the utility model and the exploded perspective view of infrared transceiver device preferred embodiment, Fig. 2 is the structural representation of Intelligent measuring tape preferred embodiment described in the utility model, and Fig. 3 is the exploded perspective view of Intelligent measuring tape preferred embodiment described in the utility model.As shown in Figure 1-Figure 3, comprise the infrared transceiver device support of described band misconstruction, also comprise Intelligent measuring tape body 100 and be arranged on the tape band 200 also can extracted out and retract in described Intelligent measuring tape body 100, described tape band 200 is provided with Gray code, and described Gray code repeats to arrange by designated period; The infrared transceiver device 300 for reading Gray code on tape band is also provided with in described Intelligent measuring tape body 100; Described infrared transceiver device 300 is fastened in the infrared facility positioning hole of infrared transceiver device support.
Concrete, as Fig. 4 and Fig. 5, described tape band 200 is provided with 2-9 linear Gray's code channel 210, described Gray's code channel 210 is provided with multiple counting Gray code.Described Intelligent measuring tape body 100 is provided with tape band outlet 110, is provided with and described Gray's code channel 210 infrared transceiver device 300 one to one near the position of tape band outlet 110 in described Intelligent measuring tape body 100.
During concrete enforcement, described Intelligent measuring tape body 100 is also provided with the display screen for the real time readouts and state showing Intelligent measuring tape; The radio receiving transmitting module for the data of Intelligent measuring tape being sent to mobile terminal or mobile terminal receive transmission data is also provided with in described Intelligent measuring tape body 100; The power supply for powering also is provided with in described Intelligent measuring tape body 100.More specifically, described display screen is E-ink display screen, TN display screen, STN display screen or TFT display screen; Described radio receiving transmitting module is bluetooth module.
Further, described infrared transceiver device 300 is arranged on the infrared transceiver device support 400 in described Intelligent measuring tape body 100, and described tape band 200 passes from the tape band passage 410 described infrared transceiver device support 400, that is to say that described infrared transceiver device 300 is on the left side of described tape band 200 and/or right side.Read the Gray code on tape band 200 by touchless mode like this, tape band 200 effectively can be avoided impaired, extend the working life of Intelligent measuring tape.
Further, as shown in Figure 4 and Figure 5, the tow sides of described tape band 200 are provided with at least one linear Gray's code channel 210, and described Gray's code channel 210 is provided with multiple counting Gray code.During concrete enforcement, as depicted in figs. 1 and 2, described Intelligent measuring tape body 100 is provided with tape band outlet 110, is provided with and described Gray's code channel 210 infrared transceiver device 300 one to one near the position of tape band outlet 110 in described Intelligent measuring tape body 100.
Because the same face all Gray's code channels 210 being all arranged on tape band 200 can increase the width of tape band 200, namely the height of tape band outlet 110 is increased, namely add the thickness of Intelligent measuring tape body 100, thus increase the volume of whole Intelligent measuring tape, be not easy to user and carry.
If when Gray's code channel 210 is arranged on the two sides of tape band 200, then can reduce the width of tape band 200, be conducive to the volume reducing Intelligent measuring tape, be convenient to user and carry.
Such as, when tape band 200 being provided with altogether 6 Gray's code channels 210, N number of Gray's code channel (wherein 1≤N≤6, and N is positive integer) can be set in front, (6-N) individual Gray's code channel is set overleaf.Height due to each Gray's code channel 210 is all equal and be fixed value, the height sum of Gray's code channel 210 of tape band 200 the same face equals the width of tape band 200, therefore when number and the number of Gray's code channel 210 at tape band 200 back side of Gray's code channel 210 in tape band 200 front differ 1 or complete equal time, the width of tape band 200 can be down to minimum.
Preferably, as shown in Figure 4 and Figure 5, the front of described tape band 200 and the back side are provided with 3 Gray's code channels 210 all from bottom to up; The front of described tape band 200 arranges low three Gray's code channels, is respectively first Gray's code channel 211, second Gray code channel 212 and the 3rd Gray's code channel 213; The back side of described tape band 200 arranges high three Gray's code channels, is respectively the 4th Gray's code channel 214, the 5th Gray's code channel 215 and the 6th Gray's code channel 216.
In the specific implementation, as shown in Figure 4, described first Gray's code channel 211 is provided with black and white and replaces first the black code of Gray's code channel and first Gray code spoken parts in an opera code that occur successively, the Extreme breadth of described first black code of Gray's code channel is 2mm.As shown in Figure 5, described 4th Gray's code channel 214 is provided with black and white and replaces the 4th the black code of Gray's code channel and the 4th Gray code spoken parts in an opera code that occur successively, the Extreme breadth of described 4th the black code of Gray's code channel is 16mm.When the Extreme breadth of described first black code of Gray's code channel is set to 2mm, then in the 6th Gray's code channel 216, each length cycles is that namely 64mm(only occurs once black code in same period, also only there is once white code), be also the repetition period L that 6 Gray codes are set in tape band 200
tfor 64mm.In like manner, when the Extreme breadth of described first black code of Gray's code channel is set to 4mm, the repetition period L of 6 Gray codes
tfor 128mm.On tape band 200,6 Gray's code channels are provided with owing to working as, and by the repetition period L of 6 Gray codes
tduring for 64mm, can meet user when extracting described tape band 200 by various speed, infrared transceiver device 300 can not be made to miss statistics repetition period L
tthe number of times repeated, therefore by the repetition period L of 6 Gray codes during concrete enforcement
tbe set to 64mm.
In order to the set-up mode of 6 Gray codes on tape band 200 in clearer explanation the utility model, below by such as 6 Gray's code tables shown in table 1-table 4 and Fig. 4 and Fig. 5 further illustrate.
| Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers |
| 1 | 000000 | 0 | 0 | 9 | 001100 | 1 | 7 |
| 2 | 000001 | 0 | 1 | 10 | 001101 | 1 | 6 |
| 3 | 000011 | 0 | 2 | 11 | 001111 | 1 | 5 |
| 4 | 000010 | 0 | 3 | 12 | 001110 | 1 | 4 |
| 5 | 000110 | 0 | 4 | 13 | 001010 | 1 | 3 |
| 6 | 000111 | 0 | 5 | 14 | 001011 | 1 | 2 |
| 7 | 000101 | 0 | 6 | 15 | 001001 | 1 | 1 |
| 8 | 000100 | 0 | 7 | 16 | 001000 | 1 | 0 |
Table 1
| Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers |
| 17 | 011000 | 2 | 0 | 25 | 010100 | 3 | 7 |
| 18 | 011001 | 2 | 1 | 26 | 010101 | 3 | 6 |
| 19 | 011011 | 2 | 2 | 27 | 010111 | 3 | 5 |
| 20 | 011010 | 2 | 3 | 28 | 010110 | 3 | 4 |
| 21 | 011110 | 2 | 4 | 29 | 010010 | 3 | 3 |
| 22 | 011111 | 2 | 5 | 30 | 010011 | 3 | 2 |
| 23 | 011101 | 2 | 6 | 31 | 010001 | 3 | 1 |
| 24 | 011100 | 2 | 7 | 32 | 010000 | 3 | 0 |
Table 2
| Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers |
| 33 | 110000 | 4 | 0 | 41 | 111100 | 5 | 7 4 --> |
| 34 | 110001 | 4 | 1 | 42 | 111101 | 5 | 6 |
| 35 | 110011 | 4 | 2 | 43 | 111111 | 5 | 5 |
| 36 | 110010 | 4 | 3 | 44 | 111110 | 5 | 4 |
| 37 | 110110 | 4 | 4 | 45 | 111010 | 5 | 3 |
| 38 | 110111 | 4 | 5 | 46 | 111011 | 5 | 2 |
| 39 | 110101 | 4 | 6 | 47 | 111001 | 5 | 1 |
| 40 | 110100 | 4 | 7 | 48 | 111000 | 5 | 0 |
Table 3
| Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Sequence number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers |
| 49 | 101000 | 6 | 0 | 57 | 100100 | 7 | 7 |
| 50 | 101001 | 6 | 1 | 58 | 100101 | 7 | 6 |
| 51 | 101011 | 6 | 2 | 59 | 100111 | 7 | 5 |
| 52 | 101010 | 6 | 3 | 60 | 100110 | 7 | 4 |
| 53 | 101110 | 6 | 4 | 61 | 100010 | 7 | 3 |
| 54 | 101111 | 6 | 5 | 62 | 100011 | 7 | 2 |
| 55 | 101101 | 6 | 6 | 63 | 100001 | 7 | 1 |
| 56 | 101100 | 6 | 7 | 64 | 100000 | 7 | 0 |
Table 4
Visible, known from 6 Gray's code tables of table 1-table 4, the repetition period of 6 Gray codes is 64, and Gray code and sequence number that sequence number is (M+1) be M Gray code compared with (wherein 1≤M≤63), have and only have one-bit digital to there occurs change (become 0 by 1, or become 1 from 0).If black code is designated as 0, white code is designated as 1, then by above-mentioned 64 6 Gray codes with one end of tape band 200 for starting point, sequentially print to the other end.By sequence number be such as 1 000000 these 6 Gray codes be arranged on starting point place end, concrete is arranged on the 6th Gray's code channel 216 by highest order in 6 Gray codes (namely the 6th) 0, a secondary high position (namely the 5th) 0 is arranged on the 5th Gray's code channel 215, 4th 0 is arranged on the 4th Gray's code channel 214, 3rd 0 is arranged on the 3rd Gray's code channel 213, secondary low level (i.e. second) 0 is arranged on second Gray code channel 212, lowest order (namely first) 0 is arranged on first Gray's code channel, the height of above-mentioned 6 codes is equal with the height of corresponding Gray's code channel, width is 1mm, on tape band 200, sequentially Gray code is set by the sequence number shown in table 1-table 4 like this, tape band 200 as shown in Figure 4 and Figure 5 can be obtained.Wherein, tape band 200 front as shown in Figure 4 sets gradually first Gray's code channel 211, second Gray code channel 212 and the 3rd Gray's code channel 213 from top to bottom, and tape band 200 back side as shown in Figure 5 sets gradually described 6th Gray's code channel 216, the 5th Gray's code channel 215 and the 4th Gray's code channel 214 from top to bottom.
During concrete enforcement, can also arbitrarily first Gray's code channel 211 in swap volume tape 200 front, second Gray code channel 212 and the 3rd Gray's code channel 213 order is set, be not limited to mode as shown in Figure 4, as calculated 3, known front Gray's code channel totally 6 kinds of set-up modes.In like manner, also can arbitrarily the 6th Gray's code channel 216 at swap volume tape 200 back side, the 5th Gray's code channel 215 and the 4th Gray's code channel 214 order is set, also mode is as shown in Figure 5 not limited to, 3, known back side Gray's code channel totally 6 kinds of set-up modes as calculated, the back side, such front may be combined with out 36 kinds of set-up modes.The situation that above-mentioned example just all arranges 3 Gray's code channels according to tape band 200 front and back illustrates, when tape band 200 being arranged Gray's code channel of other quantity, also can calculate the sum of Gray's code channel set-up mode according to permutation and combination principle.
When the front of the tape band 200 of described Intelligent measuring tape and the back side are provided with 3 Gray's code channels 210 all from bottom to up, also be provided with and described Gray's code channel 210 infrared transceiver device 300 one to one, and the range of exposures of infrared light that each infrared transceiver device sends does not exceed the altitude range of each Gray's code channel 210.Concrete, first infrared transceiver device aims at described first Gray's code channel 211, the corresponding described second Gray code channel 212 of second infrared transceiver device, corresponding described 3rd the Gray's code channel 213 of 3rd infrared transceiver device, corresponding described 4th the Gray's code channel 214 of 4th infrared transceiver device, 5th infrared transceiver device aims at described 5th Gray's code channel 215,6th infrared transceiver device aims at described 6th Gray's code channel 216, and above-mentioned six infrared transceiver devices connect the corresponding I/O mouth in the MCU control chip in Intelligent measuring tape body 100 respectively.
When change two-sided upper Gray's code channel 210 on tape band 200 order is set time, as during by first Gray's code channel 211 and second Gray code channel 212 transposition, only by the I/O mouth of the second infrared transceiver device access MCU control chip before the first infrared transceiver device access, the first infrared transceiver device before the second infrared transceiver device access need be accessed the I/O mouth of MCU control chip simultaneously.Like this when change Gray's code channel 210 order is set time, only need the corresponding order changing the I/O mouth of infrared transceiver device access MCU control chip.
Owing to each Gray's code channel 210 being all occur black code and white code with some cycles, and white code and black code alternately occur.Black code and white code are to the absorptivity difference of the infrared light that infrared transceiver device sends simultaneously, specifically the absorptivity of black code to infrared light is high, the absorptivity of white code to infrared light is low and lower than the infrared Absorption rate of black code, be decoded as 0 after the infrared light reflected back through black code is received by infrared transceiver device, after the infrared light reflected back through white code is received by infrared transceiver device, be decoded as 1.
Therefore when tape band 200 is in the process be pulled, by infrared transceiver device and with to be arranged in Intelligent measuring tape body 100 and the MCU control chip be connected with infrared transceiver device detects tape band 200 frequency n of repetition period length and the offset Δ L in current repetition period length when pulled jointly, then pass through L=n*L
t+ Δ L can calculate actual measurement length L, realizes accurately measuring length like this, reduces measurement error.Specifically because arrange on each Gray's code channel of tape, there is the black code of one fixed width and white code, effectively avoid, because soft tape is stretched, deformation and the measurement error that causes occur.
In sum, the infrared transceiver device support of band misconstruction described in the utility model and Intelligent measuring tape, by the first support included by rack body and/or the infrared facility positioning hole on the second support are shifted to install, the infrared transceiver device be fastened in the infrared facility positioning hole of infrared transceiver device support is also staggered, avoid and certainly the infrared reading device alignment of tape band homonymy is arranged, cause the defect of the insufficient space of infrared transceiver device support.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (8)
1. the infrared transceiver device support with misconstruction, it is characterized in that, comprise rack body, described rack body comprises the first support and the second support that fasten and arrange, described first support and described second support all shift to install multiple infrared facility positioning hole for fixing infrared transceiver device, or described first support shifts to install multiple infrared facility positioning hole for fixing infrared transceiver device.
2. the infrared transceiver device support according to claim 1 with misconstruction, is characterized in that, described first support is provided with 3 infrared facility positioning holes, and the link group triangularity between infrared facility positioning hole.
3. the infrared transceiver device support according to claim 1 with misconstruction, is characterized in that, described second support is provided with 3 infrared facility positioning holes, and the link group triangularity between infrared facility positioning hole.
4. the infrared transceiver device support according to claim 1 with misconstruction, is characterized in that, described first support is provided with the fixed hole for fixing the second support.
5. the infrared transceiver device support according to claim 4 with misconstruction, is characterized in that, described second support is provided with the fixing column suitable with fixed hole.
6. the infrared transceiver device support according to claim 2 with misconstruction, is characterized in that, the size of the infrared facility positioning hole on described first support and the size of infrared transceiver device suitable.
7. the infrared transceiver device support according to claim 3 with misconstruction, is characterized in that, the size of the infrared facility positioning hole on described second support and the size of infrared transceiver device suitable.
8. an Intelligent measuring tape, it is characterized in that, comprise the infrared transceiver device support of the band misconstruction as described in any one of claim 1-7, also comprise Intelligent measuring tape body, and be arranged on the tape band also can extracted out in described Intelligent measuring tape body, described tape band is provided with Gray code, and described Gray code repeats to arrange by designated period; The infrared transceiver device for reading Gray code on tape band is also provided with in described Intelligent measuring tape body; Described infrared transceiver device is fastened in the infrared facility positioning hole of infrared transceiver device support.
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| CN201520763477.5U CN205191132U (en) | 2015-09-30 | 2015-09-30 | Infrared device support and intelligent tape measure of tape error bit architecture |
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