CN106556302B - A kind of Gray code band Intelligent measuring tape showing measurement difference - Google Patents
A kind of Gray code band Intelligent measuring tape showing measurement difference Download PDFInfo
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Abstract
The invention discloses the Gray code band Intelligent measuring tapes that one kind can show measurement difference, when user need to obtain object under test physical length and designated length difference when, designated length can first be set, the measurement pattern of Intelligent measuring tape is switched into difference measurement pattern again, and tape band is extracted out out of Intelligent measuring tape ontology, measurement can be completed, and show length difference on the display screen of Intelligent measuring tape, facilitate user.Simultaneously because repeating setting Gray code by the specified period by the way that Gray code to be set up directly on tape band, and on tape band, the Gray code on tape band can be read by reading device and enhance the stability of reading instead of traditional scale reading manner.
Description
Technical field
The present invention relates to Intelligent measuring tape technical fields, more particularly to a kind of Gray code band intelligence that can show measurement difference
It can tape measure.
Background technique
Gray code belongs to Reliability codes, is a kind of coding mode of error minimization.Because although natural binary code
Analog signal directly can be converted by D/A converter, but be converted to 4 Shi Erjin in certain situations, such as from metric 3
Each of code processed will become, and digital circuit can be made to generate very big peak current pulse.And Gray code is then without this disadvantage,
It is when adjacent interdigit is converted, only one generation variation.It is patrolled when greatly reducing by a state to next state
That collects obscures.Since two adjacent interblocks of this coding only have a difference, thus in the straight-line displacement for direction
In the conversion of amount-digital quantity, when straight-line displacement amount occur minor change (and when may cause digital quantity and changing, Gray code
Only change one, it is more reliable compared with the case where other codings change simultaneously two or multidigit in this way, error can be reduced
Possibility.
The prior art mainly adopts Gray's code-discs for detecting or counting, and reads Gray's code-disc in encoder or brushgear
Often the phenomenon that will appear jump brush or leakage brush, i.e., since brushgear revolving speed is too fast, there is brushgear and bounced some Gray
Code, is unfavorable for the use of Gray code at the phenomenon that leading to miscount.Meanwhile Gray's code-disc being arranged in Intelligent measuring tape ontology
Larger inner space is occupied, so that device volume is larger.
And in the prior art, by tape measure object length whether be designated length when, need to first measure object reality
It just can know that length difference after it is made difference with designated length again after the length of border.For example, when user goes to buy 1 meter of long cable, quotient
The cable that family actually sells may be less than 1 meter.At this moment, after user can only measure the cable physical length by tape, then from
Row asks poor, extremely inconvenient.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide the Gray codes that one kind can show measurement difference
Band Intelligent measuring tape, it is intended to when whether solution is in the prior art designated length by tape measurement object length, need to first measure
It just can know that length difference after it is made difference with designated length again after object physical length, and cannot be directly directly aobvious by tape
Show the defect of difference.
Technical scheme is as follows:
A kind of Gray code band Intelligent measuring tape showing measurement difference, wherein including Intelligent measuring tape ontology, and be arranged in institute
The tape band that in Intelligent measuring tape ontology and can be extracted out is stated, the front and back of the tape band is respectively provided at least one Gray code
Road, the Gray code in Gray's code channel press the specified period and repeat to be arranged；It is also set up in the Intelligent measuring tape ontology and Gray code
Road one-to-one correspondence, the infrared transceiver device for reading Gray code in Gray's code channel；It is additionally provided on the Intelligent measuring tape ontology
For switching the measurement pattern of Intelligent measuring tape to the switching push button of difference measurement pattern, and for Intelligent measuring tape to be switched to standard
The setting button of length Setting pattern is compared, is additionally provided in the Intelligent measuring tape ontology and Intelligent measuring tape is obtained into current measurement length
The length difference counting circuit of degree and the difference of the standard comparison length of budget, the switching push button with the setting button and institute
State the electrical connection of length difference counting circuit.
The Gray code band Intelligent measuring tape for showing measurement difference, wherein be additionally provided in the Intelligent measuring tape ontology
The switching device opened or closed for controlling the infrared transceiver device, the switching device and infrared transceiver device electricity
Connection.
It is described show measurement difference Gray code band Intelligent measuring tape, wherein the front and back of the tape band from
Under supreme be provided with 3 Gray's code channels.
The Gray code band Intelligent measuring tape for showing measurement difference, wherein the front setting of the tape band is three low
Gray's code channel, respectively first Gray's code channel, second Gray code channel and third position Gray's code channel.
The Gray code band Intelligent measuring tape for showing measurement difference, wherein face tape measure in the Intelligent measuring tape ontology
Positive side is provided with 3 infrared transceiver devices, respectively the first infrared transceiver device, the second infrared transceiver device and
Three infrared transceiver devices；Wherein, first Gray's code channel described in the first infrared transceiver device face, the second infrared receipts
Second Gray code channel described in transmitting apparatus face, third position Gray's code channel described in the third infrared transceiver device face.
The Gray code band Intelligent measuring tape for showing measurement difference, wherein Gao Sanwei is arranged in the back side of the tape band
Gray's code channel, respectively the 4th Gray's code channel, the 5th Gray's code channel and the 6th Gray's code channel.
The Gray code band Intelligent measuring tape for showing measurement difference, wherein face tape measure in the Intelligent measuring tape ontology
Side with the back side is provided with 3 infrared transceiver devices, respectively the 4th infrared transceiver device, the 5th infrared transceiver device and
Six infrared transceiver devices；Wherein, the 4th Gray's code channel described in the 4th infrared transceiver device face, the 5th infrared receipts
5th Gray's code channel described in transmitting apparatus face, the 6th Gray's code channel described in the 6th infrared transceiver device face.
The utility model has the advantages that it is of the present invention show measurement difference Gray code band Intelligent measuring tape, when user need to obtain to
Survey object physical length and designated length difference when, can first set designated length, then by the measurement pattern switching of Intelligent measuring tape
To difference measurement pattern, and tape band is extracted out out of Intelligent measuring tape ontology, measurement can be completed, and length difference is shown
On the display screen of Intelligent measuring tape, user is facilitated.Simultaneously because by the way that Gray code to be set up directly on tape band, and tape band
It is upper to repeat setting Gray code by the specified period, and each Gray code in a cycle has the black code or white code of one fixed width,
The Gray code on tape band can be read by reading device enhance the stabilization of reading instead of traditional scale reading manner
Property.
Detailed description of the invention
Fig. 1 is the Gray code of the present invention for showing measurement difference with the structural representation of Intelligent measuring tape preferred embodiment
Figure.
Fig. 2 is the Gray code of the present invention for showing measurement difference with the explosive view of Intelligent measuring tape preferred embodiment.
Fig. 3 is tape band front in the Gray code band Intelligent measuring tape preferred embodiment of the present invention for showing measurement difference
Schematic diagram.
Fig. 4 is the tape band back side in the Gray code band Intelligent measuring tape preferred embodiment of the present invention for showing measurement difference
Schematic diagram.
Specific embodiment
The present invention provides a kind of Gray code band Intelligent measuring tape that can show measurement difference, to make the purpose of the present invention, technology
Scheme and effect are clearer, clear, and the present invention is described in more detail below.It should be appreciated that described herein specific
Embodiment is only used to explain the present invention, is not intended to limit the present invention.
Please referring also to Fig. 1-Fig. 2, wherein Fig. 1 is the Gray code band Intelligent measuring tape of the present invention for showing measurement difference
The structural schematic diagram of preferred embodiment, Fig. 2 are that the Gray code band Intelligent measuring tape of the present invention for showing measurement difference is preferably real
Apply the explosive view of example, the Gray code band Intelligent measuring tape for showing measurement difference, including Intelligent measuring tape ontology 100, and setting
In the Intelligent measuring tape ontology 100 and the tape band 200 that can extract out, the front and back of the tape band 200 be respectively provided with to
Few Gray's code channel, the Gray code in Gray's code channel press the specified period and repeat to be arranged；In the Intelligent measuring tape ontology 100
It also sets up and Gray's code channel one-to-one correspondence, the infrared transceiver device 300 for reading Gray code in Gray's code channel；The intelligence volume
It is additionally provided with the switching push button 110 of the measurement pattern for switching Intelligent measuring tape to difference measurement pattern on ruler ontology 100, and uses
It is also set in the setting button 120 that Intelligent measuring tape is switched to standard comparison length Setting pattern, the Intelligent measuring tape ontology 100
The length difference counting circuit for the difference of standard comparison length that Intelligent measuring tape is obtained to current measurement length and budget is equipped with (in figure
Do not mark), the switching push button 110 is electrically connected with the length difference counting circuit with the setting button 120.It is specific real
Shi Shi, the counting circuit are arranged in the control chip of the MCU in the Intelligent measuring tape.
When user need to obtain object under test physical length and designated length difference when, need to first press Intelligent measuring tape ontology
Simultaneously designated length is arranged in setting button 120 on 100, then presses the switching push button 110 on Intelligent measuring tape ontology 100, will be intelligent
The measurement pattern of tape measure switches to difference measurement pattern.Then, then by tape band 200 pulled out from Intelligent measuring tape ontology 100, and
Measure the physical length of object under test.When completing the physical length measurement of object under test, then pass through length difference counting circuit
The physical length of object under test and the difference of designated length are calculated, and the display screen on Intelligent measuring tape ontology 100 is shown.
When it is implemented, be additionally provided on the Intelligent measuring tape ontology 100 real time readouts for showing Intelligent measuring tape and
The display screen of state；It is additionally provided in the Intelligent measuring tape ontology 100 for the data of Intelligent measuring tape to be sent to mobile terminal
Or receive the radio receiving transmitting module that mobile terminal sends data；It is additionally provided in the Intelligent measuring tape ontology 100 for power supply
Power supply.More specifically, the display screen is E-ink display screen, TN display screen, STN display screen or TFT display screen；It is described wireless
Transceiver module is bluetooth module.
Further, as shown in Fig. 2, being additionally provided in the Intelligent measuring tape ontology 100 for controlling the infrared receiving/transmission
The switching device that device opens or closes, the switching device are electrically connected with the infrared transceiver device 300.The switching device
Including the code-disc in Intelligent measuring tape ontology 100 on pcb board 400 and the brush touched with the code-disc 410 is arranged in.Work as tape band
200 then drive brush 410 to rotate when pulled, constantly touch contact chip different in code-disc when brush 410 rotates, and generate
Pulse (namely switch triggering signal) is then opened infrared transceiver device 300 at this time and is read the Gray code on tape band 200
Number.When brush 410 has stopped operating, then infrared transceiver device 300 enters energy saving standby state or enters closed state.This
Sample, infrared reading device is not always on, but opens under the control of switching device, effectively saves electric energy.
When it is implemented, the infrared transceiver device 300 includes infrared transmission module and infrared receiving module, it is described infrared
Transmitting module connects infrared receiving module, and the MCU in the infrared receiving module connection Intelligent measuring tape controls chip.
Further, as shown in Figure 3 and Figure 4, the tow sides of the tape band 200 are provided at least one linear type
Gray's code channel 210, be provided with multiple counting Gray codes on Gray's code channel 210.When it is implemented, such as Fig. 1 and Fig. 2 institute
Show, tape band outlet 130 is provided on the Intelligent measuring tape ontology 100, is taken out of in the Intelligent measuring tape ontology 100 close to tape measure
It is provided with and the one-to-one infrared transceiver device 300 of Gray's code channel 210 at the position of mouth 130.
Since the same face that all Gray's code channels 210 are arranged at tape band 200 will increase the width of tape band 200,
Increase the height of tape band outlet 130, that is, increase the thickness of Intelligent measuring tape ontology 100, to increase entire intelligence
The volume of energy tape measure is not easy to user's carrying.
If the two sides of tape band 200 is arranged in Gray's code channel 210, the width of tape band 200 can be reduced, is conducive to
Reduce the volume of Intelligent measuring tape, is carried convenient for user.
For example, N number of Gray's code channel (its can be arranged in front when being provided with 6 Gray's code channels 210 on tape band 200 altogether
In 1≤N≤6, and N be positive integer), overleaf be arranged (6-N) a Gray's code channel.Since the height of each Gray's code channel 210 is equal
Equal and be fixed value, the sum of height of Gray's code channel 210 of 200 the same face of tape band is equal to the width of tape band 200, therefore works as
The number of the positive Gray's code channel 210 of tape band 200 differs 1 or complete with the number of Gray's code channel 210 at 200 back side of tape band
When complete equal, the width of tape band 200 can be minimized value.
Preferably, as shown in Figure 3 and Figure 4, the front and the back side of the tape band 200 are provided with 3 lattice from bottom to up
Thunder code channel 210；Low three Gray's code channels, respectively first Gray's code channel 211, second is arranged in the front of the tape band 200
Position Gray's code channel 212 and third position Gray's code channel 213；Gao Sanwei Gray code channel is arranged in the back side of the tape band 200, respectively
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, it is successively alternately present as shown in figure 3, being provided with black and white on first Gray's code channel 211
The black code of first Gray's code channel and first Gray code spoken parts in an opera code, the maximum width of the black code of first Gray's code channel is
2mm.As shown in figure 4, it is black to be provided with the 4th Gray's code channel that black and white is successively alternately present on the 4th Gray's code channel 214
Code and the 4th Gray code spoken parts in an opera code, the maximum width of the 4th black code of Gray's code channel are 16mm.When by described first
When the maximum width of the black code of Gray's code channel is set as 2mm, then each length cycles for 64mm(are in the 6th Gray's code channel 216
Only occur primary black code in same period, primary white code also only occur) namely tape band 200 in the weights of 6 Gray codes is set
Multiple period LTFor 64mm.Similarly, when setting 4mm for the maximum width of the black code of first Gray's code channel, 6 Gray codes
Repetition period LTFor 128mm.Due to when being provided with 6 Gray's code channels on tape band 200, and by the repetition of 6 Gray codes
Period LTWhen for 64mm, when being able to satisfy user and extracting the tape band 200 by various speed, infrared transceiver device will not be made
300 miss statistics repetition period LTThe number repeated, therefore by the repetition period L of 6 Gray codes when being embodiedTIt is set as
64mm.
For the clearer set-up mode for illustrating 6 Gray codes on tape band 200 in the present invention, below by such as table 1-
6 Gray's code tables and Fig. 3 and Fig. 4 shown in table 4 further illustrate.
| Serial number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Serial 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
| Serial number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Serial 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
| Serial number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Serial number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers |
| 33 | 110000 | 4 | 0 | 41 | 111100 | 5 | 7 |
| 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
| Serial number | 6 Gray codes | High 3 corresponding decimal numbers | Low 3 corresponding decimal numbers | Serial 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
As it can be seen that it is found that the repetition period of 6 Gray codes is 64 from 6 Gray's code tables of table 1- table 4, and serial number (M+
1) Gray code (wherein 1≤M≤63) compared with the Gray code of serial number M, has and only variation has occurred (by 1 in one-bit digital
Become 0, or is become 1) from 0.If black code is denoted as 0, white code is denoted as 1, then by above-mentioned 64 6 Gray codes with the one of tape band 200
End is starting point, is sequentially printed to the other end.Such as end, tool is arranged where starting point in this 6 Gray codes by the 000000 of serial number 1
Body highest order in 6 Gray codes (i.e. the 6th) 0 is arranged in the 6th Gray's code channel 216, by secondary high-order (i.e. the 5th) 0
Third position 0 is arranged in third by the 4th 0 setting in the 4th Gray's code channel 214 in the 5th Gray's code channel 215 for setting
Position Gray's code channel 213, secondary low level (i.e. second) 0 is arranged in second Gray code channel 212, by lowest order (i.e. first) 0
It is arranged in first Gray's code channel, the height of above-mentioned 6 codes is equal with the height of corresponding Gray's code channel, and above-mentioned 6 codes are
Rectangular strip, and the width of rectangular strip is 1mm, and Gray is set in sequence on tape band 200 by serial number shown in table 1- table 4 in this way
Code, can be obtained tape band 200 as shown in Figure 3 and Figure 4.Wherein, 200 front of tape band as shown in Figure 3 is from top to bottom
Set gradually first Gray's code channel 211, second Gray code channel 212 and third position Gray's code channel 213, volume as shown in Figure 4
200 back side of tape sets gradually the 6th Gray's code channel 216, the 5th Gray's code channel 215 and the 4th Gray code from top to bottom
Road 214.
When the front of the tape band 200 of the Intelligent measuring tape and the back side are provided with 3 Gray's code channels 210 from bottom to up
When, be additionally provided with the one-to-one infrared transceiver device 300 of Gray's code channel 210, and each infrared transceiver device issue
Infrared light range of exposures without departing from each Gray's code channel 210 altitude range.Specifically, the first infrared transceiver device face
First Gray's code channel 211, second Gray's code channel described in the second infrared transceiver device face, third infrared transceiver device
Third position Gray's code channel 213 described in face, the 4th Gray's code channel 214 described in the 4th infrared transceiver device face, the 5th is infrared
5th Gray's code channel 215 described in R-T unit face, the 6th Gray's code channel 216 described in the 6th infrared transceiver device face.
Above-mentioned six infrared transceiver devices are separately connected I/O mouthfuls of correspondence in the control chip of the MCU in Intelligent measuring tape ontology 100.
Since the two sides of tape band 200 are respectively arranged 3 infrared transceiver devices 300, if the infrared receipts of 200 two sides of tape band
The complete face of transmitting apparatus, the then excessively described tape band of infrared transmitting that the infrared transceiver device 300 of 200 side of tape band issues
When 200, the infrared light reception result that will lead to the infrared transceiver device 300 of the other side changes, and influences measurement result.
In order to ensure the accuracy of measurement result, need to by the starting point of the positive Gray's code channel of the tape band 200 with it is described
The starting point of Gray's code channel at 200 back side of tape band shifts to install.Due to when tape band 200 be the first beginning and end be drawn out state when,
The starting point of first Gray's code channel 211 described in the first infrared transceiver device face, described in the second infrared transceiver device face
The starting point of second Gray code channel 212, the starting point of third position Gray's code channel 213 described in third infrared transceiver device face, the 4th
The starting point of 4th Gray's code channel 214 described in infrared transceiver device face, the 5th lattice described in the 5th infrared transceiver device face
The starting point of thunder code channel 215, the starting point of the 6th Gray's code channel 216 described in the 6th infrared transceiver device face.Due to tape band 200
There is dislocation in the starting point of two-sided Gray's code channel, therefore be distributed in the first infrared transceiver device of 200 side of tape band, second
The position of infrared transceiver device and third infrared transceiver device face is relative to being distributed in the 4th of 200 other side of the tape band
There is the dislocation of certain distance in the position of infrared transceiver device, the 5th infrared transceiver device and the 6th infrared transceiver device face.Tool
When body is implemented, the starting point of Gray's code channel of the starting point and 200 back side of tape band of the positive Gray's code channel of the tape band 200
Dislocation distance is 3-10mm.It is optimal, the starting point of the positive Gray's code channel of the tape band 200 and 200 back side of tape band
Gray's code channel starting point dislocation distance be 5.5mm.
Due to being all to occur black code and white code with some cycles, and white code and black code are to hand on each Gray's code channel 210
For appearance.The absorptivity difference for the infrared light that black code and white code issue infrared transceiver device 300 simultaneously, specifically black code is to red
The absorptivity of outer light is high, and white code is low to the absorptivity of infrared light and is lower than the infrared absorption rate of black code, is reflected back by black code
The infrared light gone is decoded as 0 after being received by infrared transceiver device 300, and the infrared light reflected back by white code is by infrared receiving/transmission
Device 300 is decoded as 1 after receiving.
Therefore when tape band 200 is during being pulled, by infrared transceiver device 300 and with setting in Intelligent measuring tape sheet
MCU connect in body 100 and with infrared transceiver device 300 controls chip and detects the repetition period when pulled of tape band 200 jointly
The frequency n of length and the offset Δ L in current repetition period length, then pass through L=n*LTReality can be calculated in+Δ L
Length L is measured, is achieved and length is accurately measured, reduce measurement error.Particularly due in each Gray code of tape
Setting has the black code and white code of one fixed width on road, effectively avoids measuring because soft tape is stretched caused by deformation occurs
Error.
In conclusion it is of the present invention show measurement difference Gray code band Intelligent measuring tape, when user need to obtain to
Survey object physical length and designated length difference when, can first set designated length, then by the measurement pattern switching of Intelligent measuring tape
To difference measurement pattern, and tape band is extracted out out of Intelligent measuring tape ontology, measurement can be completed, and length difference is shown
On the display screen of Intelligent measuring tape, user is facilitated.Simultaneously because by the way that Gray code to be set up directly on tape band, and tape band
It is upper to repeat setting Gray code by the specified period, and each Gray code in a cycle has the black code or white code of one fixed width,
The Gray code on tape band can be read by reading device enhance the stabilization of reading instead of traditional scale reading manner
Property.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (3)
1. one kind can show the Gray code band Intelligent measuring tape of measurement difference, which is characterized in that including Intelligent measuring tape ontology, and setting
In the Intelligent measuring tape ontology and the tape band that can extract out, the front and back of the tape band are respectively provided at least one Gray
Code channel, the Gray code in Gray's code channel press the specified period and repeat to be arranged；It is also set up in the Intelligent measuring tape ontology and Gray
Code channel one-to-one correspondence, the infrared transceiver device for reading Gray code in Gray's code channel；It is also set up on the Intelligent measuring tape ontology
There is the switching push button of the measurement pattern for switching Intelligent measuring tape to difference measurement pattern, and for Intelligent measuring tape to be switched to mark
Standard compares the setting button of length Setting pattern, is additionally provided in the Intelligent measuring tape ontology Intelligent measuring tape obtaining current measurement
The length difference counting circuit of the difference of length and the standard comparison length of budget, the switching push button and the setting button with
The length difference counting circuit electrical connection；
The front and back of the tape band is provided with 3 Gray's code channels from bottom to up；
The tow sides of the tape band are provided at least one linear Gray's code channel；
The starting point of the positive Gray's code channel of tape band and the starting point of Gray's code channel at the tape band back side shift to install；
The switching device opened or closed for controlling the infrared transceiver device, institute are additionally provided in the Intelligent measuring tape ontology
Switching device is stated to be electrically connected with the infrared transceiver device；
The switching device includes the code-disc being arranged in Intelligent measuring tape ontology on pcb board and the brush contacted with the code-disc；
When tape band then drives brush to rotate when pulled, contact chip different in the code-disc is contacted when brush rotation, and
Pulse is generated, then opens infrared transceiver device and the Gray code on the tape band is read；
The front of the tape band is arranged low three Gray's code channels, respectively first Gray's code channel, second Gray code channel and
Third position Gray's code channel；
The back side of the tape band is arranged Gao Sanwei Gray code channel, respectively the 4th Gray's code channel, the 5th Gray's code channel and
6th Gray's code channel；
The black code of first Gray's code channel and first lattice that black and white is successively alternately present are provided on first Gray's code channel
The white code of thunder code channel；
The 4th black code of Gray's code channel and the 4th lattice that black and white is successively alternately present are provided on 4th Gray's code channel
The white code of thunder code channel.
2. can show the Gray code band Intelligent measuring tape of measurement difference according to claim 1, which is characterized in that the intelligence volume
The positive side of face tape band is provided with 3 infrared transceiver devices, respectively the first infrared transceiver device, second in ruler ontology
Infrared transceiver device and third infrared transceiver device；Wherein, first Gray code described in the first infrared transceiver device face
Road, second Gray's code channel described in the second infrared transceiver device face, described in the third infrared transceiver device face
Three Gray's code channels.
3. can show the Gray code band Intelligent measuring tape of measurement difference according to claim 1, which is characterized in that the intelligence volume
The side at the face tape band back side is provided with 3 infrared transceiver devices, respectively the 4th infrared transceiver device, the 5th in ruler ontology
Infrared transceiver device and the 6th infrared transceiver device；Wherein, the 4th Gray code described in the 4th infrared transceiver device face
Road, the 5th Gray's code channel described in the 5th infrared transceiver device face, described in the 6th infrared transceiver device face
Six Gray's code channels.
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| GB2188805B (en) * | 1986-03-27 | 1991-01-09 | Duracell Int | Device |
| CN203479191U (en) * | 2013-09-29 | 2014-03-12 | 珠海格力电器股份有限公司 | Device for automatically recording test data of calipers |
-
2015
- 2015-09-30 CN CN201510633388.3A patent/CN106556302B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273244A (en) * | 2005-07-25 | 2008-09-24 | 霍克斯特马斯巴尔泽有限责任公司 | Electronic measuring tape and a length measuring device provided therewith |
| CN201772859U (en) * | 2010-07-06 | 2011-03-23 | 靖江量具有限公司 | Digital caliper with V-shaped groove and measuring jaw |
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| CN106556302A (en) | 2017-04-05 |
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