CN201772888U - Metering device adopting light reflection information encoding to determine rotational position of character wheel - Google Patents
Metering device adopting light reflection information encoding to determine rotational position of character wheel Download PDFInfo
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- CN201772888U CN201772888U CN2010202892462U CN201020289246U CN201772888U CN 201772888 U CN201772888 U CN 201772888U CN 2010202892462 U CN2010202892462 U CN 2010202892462U CN 201020289246 U CN201020289246 U CN 201020289246U CN 201772888 U CN201772888 U CN 201772888U
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- character wheel
- wheel body
- character
- body axis
- reflecting strips
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Abstract
A metering device adopting light reflection information encoding to determine rotational position of character wheel comprises a flat cylindrical character wheel body, wherein the cylindrical surface of the character wheel body consists of a character code cylindrical surface and a light reflection surface. A first rectangular reflective bar, a second rectangular reflective bar and a third rectangular reflective bar which are all made of reflective materials are sequentially stamped on the light reflection cylindrical surface along the direction that size of the character codes increases. A photoelectric module surrounds the cylindrical surface of the character wheel body and comprises five-digit groups of photoelectric tubes exactly facing the light reflection cylindrical surface of the character wheel body respectively. The utility model ensures the mechanical strength born by the character wheel body. As the photoelectric module outputs five-digit encoding information, not only is the rotational position of the character wheel body determined, but also the rotational direction of the character wheel body can be judged according to the encoding information, so that the problems of incorrect counting caused during the reverse rotation of the character wheel and inaccurate carry judgment are solved.
Description
Technical field
The utility model relates to the measuring apparatus of using the character wheel video data, particularly relates to by position encoded to realize the measuring apparatus of automatic reading of data to character wheel.
Background technology
The prior art measuring apparatus, as water meter, gas meter, ammeter, usually all be with corresponding each numerical digit, the surface is printed on the character wheel demonstration continuous data of character code.It is to finish by artificial reading mode the earliest that the data of described measuring apparatus are obtained, in order to realize that remote meter reading is to improve meter reading efficiency, all be provided with the module that realizes automatic meter-reading in the described measuring apparatus, this module mostly is by induction installation detecting character wheel turned position and exports the respective coding data, determine the reading that character wheel shows at the reading window according to this coded data, thereby realize automatic data logging.The prior art measuring apparatus on character wheel, be provided with along print wheel shaft to through hole, axial both sides at this character wheel are provided with the optical sensor group, in the character wheel rotary course, make the optical sensor group in the different position of rotation output respective coding data of character wheel by described through hole, determine the reading of character wheel again by data processing module according to this coded data.But, count incorrect problem when the prior art measuring apparatus still exists character wheel the reversing situation to occur, and carry judged inaccurate problem; In addition, through hole being set on character wheel also causes the physical strength of character wheel to reduce.
The utility model content
The technical problems to be solved in the utility model is to avoid the deficiencies in the prior art part and proposes a kind of measuring apparatus with the reflective information coding of character wheel cylinder, not only can accurate counting, can also judge that the character wheel sense of rotation judges inaccurate problem to solve under the character wheel reversing situation the incorrect problem of counting and carry.
The utility model solve the technical problem can be by realizing by the following technical solutions:
Design, a kind of light reflective information coding of using of manufacturing comprise at least one character wheel module to determine the measuring apparatus of character wheel position of rotation, and described character wheel module comprises oblate column character wheel body.Especially, described character wheel module also comprises optical-electric module and coded data processing module.The cylinder of described character wheel body comprises character code cylinder and light reflective cylinder.Described character code cylinder equal intervals gets thermoprint " 0 " to " 9 " totally ten character codes.According to the character code direction of order from small to large, first reflecting strips, second reflecting strips and the 3rd reflecting strips of the rectangle made of the useful reflectorized material of thermoprint successively on the light reflective cylinder.The sideline that two of described first reflecting strips is parallel to the character wheel body axis respectively and the angle that forms between the plane of character wheel body axis be 60 degree; The sideline that two of described second reflecting strips is parallel to the character wheel body axis respectively and the angle that forms between the plane of character wheel body axis be 92 degree; The sideline that two of described the 3rd reflecting strips is parallel to the character wheel body axis respectively and the angle that forms between the plane of character wheel body axis be 28 degree.Described first reflecting strips two sidelines that are parallel to character wheel body axis adjacent with second reflecting strips respectively and the angle that forms between the plane of character wheel body axis be 28 degree; Described second reflecting strips two sidelines that are parallel to character wheel body axis adjacent with the 3rd reflecting strips respectively and the angle that forms between the plane of character wheel body axis be 60 degree.Described optical-electric module is around the cylinder setting of character wheel body, comprise five groups respectively over against the photoelectric tube of the light reflective cylinder of described character wheel body, every group of photoelectric tube comprises light-emitting tube and light receiving tube, and whether the detecting of every group of light receiving tube receives that this group light-emitting tube penetrates and the light that reflected by arbitrary reflecting strips and output coding information described coded data processing module extremely.
Specifically, on the light reflective cylinder of character wheel body, between " 0 " character code center line and " 9 " character code center line in the corresponding zone, described the 3rd reflecting strips is set, and near the center line that is parallel to the character wheel body axis of the sideline that is parallel to the character wheel body axis of the 3rd reflecting strips of " 0 " character code and " 0 " character code respectively and the angle that forms between the plane of character wheel body axis be 1 degree.
The further proposition of the utility model can be judged the concrete scheme of character wheel sense of rotation, and it all is 36 degree that the center line that is parallel to the character wheel body axis of respectively organizing photoelectric tube of described optical-electric module forms interplanar angle with the character wheel body axis respectively.
Described measuring apparatus also comprises the top cover of cover cap on all character wheel modules, for each character wheel module the one reading window that is used to show character code is set respectively at this top cover upper surface.
Compare with prior art, the technique effect of the utility model " with the measuring apparatus of light reflective information coding with definite character wheel position of rotation " is:
1. the utility model is realized the optical-electric module feedback information by the reflecting strips that is arranged on the character wheel body cylinder, so that the coded message that described coded data processing module forms according to each photoelectric tube is determined the position of rotation of character wheel body, and through hole need be set on the character wheel body, guaranteed the physical strength that the character wheel body can bear;
2. described optical-electric module is exported five bit-encoded informations, not only determined the position of rotation of character wheel body, it is the reading of character wheel, can also judge the sense of rotation of character wheel body according to coded message, count incorrect problem to solve when the reversing situation appears in the prior art character wheel, and carry is judged inaccurate problem.
Description of drawings
Fig. 1 is the main synoptic diagram of looking of orthogonal projection of the utility model " with the measuring apparatus of light reflective information coding with definite character wheel position of rotation " preferred embodiment;
Fig. 2 is the main synoptic diagram of looking of orthogonal projection after described preferred embodiment is removed top cover 9100;
Fig. 3 is that synoptic diagram is looked on the orthogonal projection left side of described preferred embodiment character wheel body 100;
Fig. 4 is that synoptic diagram is looked on the orthogonal projection left side of described preferred embodiment character wheel module 1000;
Fig. 5 is the cylinder unwrapping figure of Fig. 3 by the character wheel body 100 of A direction indication;
Fig. 6 is the electrical connection figure between described preferred embodiment optical-electric module 200 and the coded data processing module 300;
Fig. 7 is that described preferred embodiment shows character code and coded data mapping table.
Embodiment
Be described in further detail below in conjunction with the accompanying drawing illustrated embodiment.
The utility model proposes a kind of light reflective information coding of using to determine the measuring apparatus 9000 of character wheel position of rotation, comprise at least one character wheel module 1000.The utility model preferred embodiment, as shown in Figure 2, described measuring apparatus is provided with five character wheel modules 1000.Described character wheel module 1000 comprises oblate column character wheel body 100.Described measuring apparatus 9000 also comprises the top cover 9100 of cover cap on all character wheel modules 1000, for each character wheel module 1000 a reading window 9200 that is used to show character code 111 is set respectively at these top cover 9100 upper surfaces.The utility model preferred embodiment, described reading window 9200 are exactly five through holes that are provided with on top cover 9100, and each through hole is sealed as organic glass by transparent material.
As Fig. 4 and shown in Figure 6, described character wheel module 1000 also comprises optical-electric module 200 and coded data processing module 300.To shown in Figure 5, the cylinder of described character wheel body 100 comprises character code cylinder 110 and light reflective cylinder 120 as Fig. 2.Described character code cylinder equal intervals gets thermoprint " 0 " to " 9 " totally ten character codes 111.According to character code 111 direction of order from small to large, first reflecting strips 121, second reflecting strips 122 and the 3rd reflecting strips 130 of the rectangle made of the useful reflectorized material of thermoprint successively on light reflective cylinder 120.The sideline that two of described first reflecting strips 121 is parallel to the character wheel body axis respectively and the character wheel body axis form angle β between the plane
1Be 60 degree; The sideline that two of described second reflecting strips 122 is parallel to the character wheel body axis respectively and the character wheel body axis form angle β between the plane
2Be 92 degree; The sideline that two of described the 3rd reflecting strips 123 is parallel to the character wheel body axis respectively and the character wheel body axis form angle β between the plane
3Be 28 degree.Described first reflecting strips 121 two sidelines that are parallel to character wheel body axis adjacent with second reflecting strips 122 respectively and the character wheel body axis form angle β between the plane
12Be 28 degree; Described second reflecting strips 122 two sidelines that are parallel to character wheel body axis adjacent with the 3rd reflecting strips 123 respectively and the character wheel body axis form β between the plane
23Angle is 60 degree.
And for example Fig. 2 is to shown in Figure 6, and described optical-electric module 200 is around the cylinder setting of character wheel body 100, comprises five groups respectively over against the photoelectric tube 210 of the light reflective cylinder of described character wheel body.Every group of photoelectric tube comprises light-emitting tube 211 and light receiving tube 212, and whether 212 detectings of every group of light receiving tube receive that this group light-emitting tube 211 penetrates and by the light of arbitrary reflecting strips 121,122,123 reflections and output coding information described coded data processing module 300 extremely.The utility model preferred embodiment, according to counterclockwise, described light receiving tube 212 is marked as R1, R2, R3, R4, R5 respectively.The utility model preferred embodiment, as Fig. 2 and shown in Figure 4, described optical-electric module 200 also comprises semi-cylindrical pedestal 280, and described photoelectric tube 210 is welded on the flexible PCB, and this flexible PCB is close to the semicolumn inner face setting of pedestal 280.
The utility model is realized optical-electric module 200 feedback informations by the reflecting strips on the reflective cylinder 120 that is arranged on character wheel body 100 121,122,123, so that the coded message that described coded data processing module 300 forms according to each photoelectric tube 210 is determined the position of rotation of character wheel body 100, and need through hole be set on character wheel body 100 as prior art, guaranteed the physical strength that character wheel body 100 can bear.
The utility model preferred embodiment, as shown in Figure 3, on the light reflective cylinder 120 of character wheel body 100, between " 0 " character code 111 center lines and " 9 " character code 111 center lines in the corresponding zone, described the 3rd reflecting strips 123 is set, and near the center line that is parallel to the character wheel body axis of the sideline that is parallel to the character wheel body axis of the 3rd reflecting strips 123 of " 0 " character code 111 and " 0 " character code 111 respectively and the character wheel body axis form angle β between the plane
30It is 1 degree.As shown in Figure 3 and Figure 4, each character code 111 all has rectangular area separately on character code cylinder 110, ten character codes 111 in described " 0 " to " 9 " have been divided equally character code cylinder 110, shown in the middle as shown dotted line in the border in each character code 111 shared zone, be each character code 111 the boundary line that is parallel to character code body 100 axis respectively and the angle between two planes that form of the axis of character code body 100 should be 36 degree, the center line of so described character code 111 is exactly the center line of the axis that is parallel to character wheel body 100 between 111 liang of regional edge boundary lines of this character code.
The utility model preferred embodiment, as shown in Figure 4, it all is 36 degree that the center line that is parallel to the character wheel body axis of respectively organizing photoelectric tube 210 of described optical-electric module 200 forms interplanar angle α with the character wheel body axis respectively.Among Fig. 4, the reading people represents with arrow S that by the sight line of reading window 9200 corresponding relation between the coded data that the character code 111 that demonstrates so and each photoelectric tube 210 form as shown in Figure 7 in reading window 9200.Can determine from Fig. 7, described coded data has not only reflected the coded data when showing complete character code 111 in the reading window 9200, also has respectively to reflect that character code 111 upper ends only are shown in the coded data in the reading window 9200 and reflect that character code 111 lower ends only are shown in the coded data in the reading window 9200.Rely on and reflect that described character code 111 upper ends are shown in the coded data in the reading window 9200 and reflect that only character code 111 lower ends are shown in the sequencing that the coded datas in the reading window 9200 occur, and just can accurately judge the sense of rotation of character wheel body 100.Therefore, even when the reversing situation takes place character wheel body 100, still can accurately judge the accurate reading that shows at the reading window on the character wheel body 100.In like manner, the utility model also can form accurate judgement for reading carry problem.
Claims (4)
1. use up the reflective information coding to determine the measuring apparatus of character wheel position of rotation for one kind, comprise at least one character wheel module (1000), described character wheel module comprises oblate column character wheel body (100), it is characterized in that:
Described character wheel module (1000) also comprises optical-electric module (200) and coded data processing module (300);
The cylinder of described character wheel body (100) comprises character code cylinder (110) and light reflective cylinder (120); Described character code cylinder equal intervals gets thermoprint " 0 " to " 9 " totally ten character codes (111); According to character code (111) direction of order from small to large, first reflecting strips (121), second reflecting strips (122) and the 3rd reflecting strips (130) of the rectangle made of the useful reflectorized material of thermoprint successively on light reflective cylinder (120); The sideline that two of described first reflecting strips (121) is parallel to the character wheel body axis respectively and the character wheel body axis form angle (β between the plane
1) be 60 degree; The sideline that two of described second reflecting strips (122) is parallel to the character wheel body axis respectively and the character wheel body axis form angle (β between the plane
2) be 92 degree; The sideline that two of described the 3rd reflecting strips (123) is parallel to the character wheel body axis respectively and the character wheel body axis form angle (β between the plane
3) be 28 degree; Described first reflecting strips (121) two sidelines that are parallel to character wheel body axis adjacent with second reflecting strips (122) respectively and the character wheel body axis form angle (β between the plane
12) be 28 degree; Described second reflecting strips (122) two sidelines that are parallel to character wheel body axis adjacent with the 3rd reflecting strips (123) respectively and the character wheel body axis form (β between the plane
23) angle be 60 the degree;
Described optical-electric module (200) is around the cylinder setting of character wheel body (100), comprise five groups respectively over against the photoelectric tube (210) of the light reflective cylinder of described character wheel body, every group of photoelectric tube comprises light-emitting tube (211) and light receiving tube (212), and whether every group of light receiving tube (212) detecting receives that this group light-emitting tube (211) penetrates and by the light of arbitrary reflecting strips (121,122,123) reflection and output coding information described coded data processing module (300) extremely.
2. according to claim 1 with the measuring apparatus of light reflective information coding with definite character wheel position of rotation, it is characterized in that:
On the light reflective cylinder (120) of character wheel body (100), between " 0 " character code (111) center line and " 9 " character code (111) center line in the corresponding zone, described the 3rd reflecting strips (123) is set, and near the center line that is parallel to the character wheel body axis of the sideline that is parallel to the character wheel body axis of the 3rd reflecting strips (123) of " 0 " character code (111) and " 0 " character code (111) respectively and the character wheel body axis form angle (β between the plane
30) be 1 degree.
3. according to claim 1 or the 2 described measuring apparatus of using light reflective information coding with definite character wheel position of rotation, it is characterized in that:
It all is 36 degree that the center line that is parallel to the character wheel body axis of respectively organizing photoelectric tube (210) of described optical-electric module (200) forms interplanar angle (α) with the character wheel body axis respectively.
4. according to claim 1 with the measuring apparatus of light reflective information coding with definite character wheel position of rotation, it is characterized in that:
Also comprise the top cover (9100) of cover cap on all character wheel modules (1000), for each character wheel module (1000) a reading window (9200) that is used to show character code (111) is set respectively at this top cover (9100) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892462U CN201772888U (en) | 2010-08-10 | 2010-08-10 | Metering device adopting light reflection information encoding to determine rotational position of character wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892462U CN201772888U (en) | 2010-08-10 | 2010-08-10 | Metering device adopting light reflection information encoding to determine rotational position of character wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772888U true CN201772888U (en) | 2011-03-23 |
Family
ID=43752736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202892462U Expired - Fee Related CN201772888U (en) | 2010-08-10 | 2010-08-10 | Metering device adopting light reflection information encoding to determine rotational position of character wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772888U (en) |
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2010
- 2010-08-10 CN CN2010202892462U patent/CN201772888U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20160810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |