CN201373759Y - Counter based on photoelectric transceiving sensor - Google Patents
Counter based on photoelectric transceiving sensor Download PDFInfo
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- CN201373759Y CN201373759Y CN200820156861U CN200820156861U CN201373759Y CN 201373759 Y CN201373759 Y CN 201373759Y CN 200820156861 U CN200820156861 U CN 200820156861U CN 200820156861 U CN200820156861 U CN 200820156861U CN 201373759 Y CN201373759 Y CN 201373759Y
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- receiving sensor
- photoelectric sending
- runner
- photoelectric
- sending
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Abstract
The utility model provides a counter based on a photoelectric transceiving sensor, which belongs to the field of electronic equipment. The counter comprises a runner, a photoelectric transceiving sensor array, an uncertain-point comparison module and a numerical operation processing module. The utility model has the advantages that uncertain points on a number wheel can be directly found by utilizing the AD reading mechanism, thereby fundamentally eliminating the reading error of the number wheel, and the utility model has significant value in the field of runner counting requiring accurate reading.
Description
Technical field
The utility model belongs to electronic device field.
Background technology
At present, the counter of forming by character wheel has a wide range of applications in multiple field.Such as, destroy several fields at gas meter.Along with the development of technology, owing to directly enter user's family or place of business inconvenience is arranged more, so, the long-range focus difficult problem of counting just to have become current gas meter field of copying of gas meter.
Solve gas meter long-range copy several aspect, multiple solution is arranged, have direct employing character wheel rotation to produce the scheme of electric impulse signal, also have and adopt the optoelectronic induction device to come the structure that the rotation of character wheel is tested, converted.
Wherein, the existing test operation of realizing by the optoelectronic induction device all carries out reading with digital signal.But, between two adjacent numerals of same character wheel, cause the generation of error code incident through regular meeting because the character wheel of rotation is circular.Such as, the conventional in the market gas meter remote meter reading counter of using, the probability that occurs misreading is 1～2%.
How eliminating the error of existing remote counter, is the task of top priority, also is a difficult problem.
The utility model content
The purpose of this utility model provides a kind of counter based on photoelectric sending and receiving sensor, can realize accurate reading by the mode of photoelectric reflection and numerical analysis.
A kind of counter based on photoelectric sending and receiving sensor, it realizes that so this counter comprises:
Runner, runner are provided with the reflective working lining of forming by reflective areas and non-reflective areas of runner;
The photoelectric sending and receiving sensor array, corresponding the reflective working lining of described runner is provided with the photoelectric sending and receiving sensor group of forming by luminescent device and sensor devices;
Uncertain some comparison module, reflective data on the runner that is obtained according to the photoelectric sending and receiving sensor array determines whether the pairing runner of each photoelectric sending and receiving sensor group zone is the modular structure of uncertain point;
The numerical operation processing module, be according to the photoelectric sending and receiving sensor array after screening out uncertain point, the digital signal that is obtained is converted into the modular structure of numerical value.
Further, the described counter based on photoelectric sending and receiving sensor of the utility model also includes following technical essential:
Described runner, by evenly be provided with the numeral character wheel around.
On the reflective working lining of described runner, be provided with the reflective areas and the non-reflective areas that link up mutually, reflective areas and non-reflective areas respectively account for half of the reflective working lining of runner.
In the photoelectric sending and receiving sensor array, corresponding each character wheel is provided with and links up and equally distributed 5 photoelectric sending and receiving sensor groups, and interval between the photoelectric sending and receiving sensor group and the figure blank on the character wheel match.
Described 5 photoelectric sending and receiving sensors are arranged continuously, and deflection differs 36 degree between the adjacent sensors mid point.
In described uncertain some comparison module, supporting be directed to the AD sampling numerical value that the photoelectric sending and receiving sensor array is obtained, height by numerical value is divided into three zones successively, is respectively retroreflective regions, critical zone and non-retroreflective regions, and all points that belongs in the critical zone are uncertain point.
Described photoelectric sending and receiving sensor array is arranged on the flexible PCB plate.
Advantage of the present utility model is: utilize the AD reading mechanism in the utility model, can directly find the uncertain point on the character wheel, thereby can fundamentally eliminate the reading error of character wheel, this has important value for the runner counting field that requires accuracy of reading.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is the synoptic diagram of a kind of specific embodiment of a kind of counter based on photoelectric sending and receiving sensor described in the utility model, and concrete application examples is a kind of gas meter.
Fig. 2 is a kind of specific embodiment structural representation of a kind of counter based on photoelectric sending and receiving sensor described in the utility model, corresponding embodiment shown in Figure 1.
Fig. 3 is the structural representation of a kind of counter based on photoelectric sending and receiving sensor described in the utility model.
Fig. 4 is the process flow diagram of the implementation method of a kind of counter based on photoelectric sending and receiving sensor described in the utility model.
Embodiment
100-is based on the counter of photoelectric sending and receiving sensor, 110-gas meter, flow meter counter, 120-counter housing, the visual numerical aperture of 130-, 140-runner, 141-character wheel, the reflective working lining of 150-runner, 151-reflective areas, the non-reflective areas of 152-; 200-photoelectric sending and receiving sensor array, 210-photoelectric sending and receiving sensor group, 211-luminescent device, 212-sensor devices, 220-flexible PCB plate.
The utility model provides a kind of counter 100 based on photoelectric sending and receiving sensor, by this device, utilizes the mode of photoelectric reflection, can carry out accurate reading to character wheel, and the numerical value of being read can be exported with the form of electric signal.As typical application, be gas meter long-range copy several aspect; Certainly, concrete application does not limit, and every needs use character wheel to carry out long-range numerical value and copy number, comprises the long-range long-range number of copying of copying number and wireless channel of wire message way, can use.
In the utility model, should mainly comprise following structure based on the counter 100 of photoelectric sending and receiving sensor:
1. runner 140.On the surface of runner, be provided with the reflective working lining 150 of runner, the reflective working lining 150 of this runner is provided with reflective areas 151 and non-reflective areas 152.
The reflective function of reflective areas 151 wherein is strong; A little less than the reflective function of non-reflective areas 152.
Further, described here runner 140, by evenly be provided with the numeral character wheel 141 around.This numeral is 0～90 arabic numeral normally, but does not also limit, such as, the counting mode of symbolization I～X, and other counting mode too can.
Certainly, set content on the character wheel 141 can also not be a numeral, and other is as letter, literal, symbol, even figure etc., also can.
In addition, join shown in Figure 3, as preferred embodiment in the utility model and non-limiting, can be on the reflective working lining 150 of described runner, be provided with the reflective areas 151 and the non-reflective areas 152 that link up mutually, wherein reflective areas 151 and non-reflective areas 152 respectively account for half of the reflective working lining 150 of runner.
2. the photoelectric sending and receiving sensor array 200.Corresponding the reflective working lining 150 of described runner is provided with the photoelectric sending and receiving sensor group of forming by luminescent device and sensor devices 210.
Luminescent device wherein as an example, can adopt emitting led the realization; And supporting sensor devices can adopt semiconductor light-sensing device to realize getting final product.In use, luminescent device emits beam, and shines on the reflective working lining 150 of runner, and light reflected is transferred on the contiguous sensor devices again, utilizes sensor devices to test out catoptrical intensity.
In the utility model, photoelectric sending and receiving sensor array 100 correspondences each character wheel 141, are provided with to link up and equally distributed 5 photoelectric sending and receiving sensor groups 210, and the interval between the photoelectric sending and receiving sensor group 210 is corresponding with the figure blank on the character wheel 141.
Further, has only one in order to ensure the uncertain point that is produced, what need so to guarantee a bit is: the zone, two places that reflective areas 151 and non-reflective areas 152 intersect can only have zone, a place to drop within the test specification of photoelectric sending and receiving sensor array 200 at the most; And on the other hand, in order to obtain detecting information as much as possible, the test specification of photoelectric sending and receiving sensor array 200 is big as far as possible again.
So such embodiment is recommended: in the heart line in corresponding the same character wheel 141, two photoelectric sending and receiving sensor groups of the head and the tail of described 5 photoelectric sending and receiving sensor groups 210 210 and supporting character wheel 141, near semicircle but not enough semicircle.That is: the coverage of photoelectricity test covers half of runner reflective operation layer 150 as far as possible, but less than half.
And whole photoelectric sending and receiving sensor array 200 as preferred embodiment and non-limiting, can be arranged on the flexible PCB plate.
3. a uncertain comparison module.It is the reflective data on the runner 140 that is obtained according to photoelectric sending and receiving sensor array 200, determines whether each photoelectric sending and receiving sensor group 210 pairing runner zone is the modular structure of uncertain point.
Be described below by specific embodiment.We are supporting to be directed to the AD sampling numerical value that photoelectric sending and receiving sensor array 200 is obtained, and is divided into three zones successively by the height of numerical value, is respectively retroreflective regions, critical zone and non-retroreflective regions.Wherein, the intensity of the reflection ray of retroreflective regions is the highest, and is corresponding with the reflective areas 151 in the reflective working lining 150 of runner; The reflection ray intensity of non-retroreflective regions is minimum, and is corresponding with the non-reflective areas 152 in the reflective working lining 150 of runner; The intensity of the reflection ray of critical zone, between the light intensity of retroreflective regions and non-retroreflective regions, corresponding with the position that reflective areas 151 in the reflective working lining 150 of runner and non-reflective areas 152 are interlocked.
All reflection ray intensity is on the critical zone between the lower threshold value, and pairing photoelectric sending and receiving sensor group all is considered as uncertain point, when numerical evaluation this point deletion is got final product.And the retroreflective regions of having determined can be considered digital signal " 1 ", and the non-retroreflective regions of having determined can be considered digital signal " 0 ".
4. numerical operation processing module.Be according to the photoelectric sending and receiving sensor array after screening out uncertain point, the digital signal that is obtained is converted into the modular structure of numerical value.
This module is mainly used to realize the calculation function of numeral on the character wheel 141.As previously mentioned, if test result does not comprise uncertain point, so, 5 photoelectric sending and receiving sensor groups just are equivalent to 5 binary point, by 2
5Individual possibility numerical value is determined 0～90 numeral; If test result comprises a uncertain point, so, 4 photoelectric sending and receiving sensor groups just are equivalent to 4 binary point, by 2
4Individual possibility numerical value is determined 0～90 numeral.
Further, the utility model has also been described a kind of implementation method of the counter based on photoelectric sending and receiving sensor, utilizes this method, can realize being directed to the counting operation of runner 140 efficiently and accurately.With reference to accompanying drawing 4, this method mainly comprises following 5 steps:
Step 1, the critical zone threshold value of setting photoelectric sending and receiving sensor group.
As previously mentioned, the critical zone threshold value is the intensity of light reflection threshold value of corresponding reflective areas 151 and non-reflective areas 152 crossing positions, in order to judge uncertain point.
Step 2 utilizes the reflective working lining 150 of runner of 210 pairs of counters of photoelectric sending and receiving sensor array to carry out sensitization.
The description of the reflective working lining 150 of runner, consistent with aforesaid content.As a kind of preferred embodiment, the reflective areas 151 and the non-reflective areas 152 that link up mutually can be set, wherein reflective areas 151 and non-reflective areas 152 respectively account for half of the reflective working lining 150 of runner.
Corresponding the reflective operation layer of each character wheel 141 is provided with the photoelectric sending and receiving sensor array 200 near semicircle that five photoelectric sending and receiving sensor groups 210 combine.
Then, according to measuring-signal, utilize the reflective working lining 150 of 210 pairs of runners of photoelectric sending and receiving sensor array to carry out sensitization and get final product.
Step 3 compares sensitization data and the critical zone threshold value that is obtained in each photoelectric sending and receiving sensor array 200.
As an example, the AD sampling numerical value that utilizes photoelectric sending and receiving sensor array 210 to be obtained, compare with the critical zone threshold value, every critical zone threshold range of being higher than, be considered as non-retroreflective regions, all subcritical region threshold scopes, be considered as retroreflective regions, all in the threshold range of critical zone, be considered as uncertain point.
Step 4, every uncertain point is removed this uncertain point when counting, every definite point, data keep during counting.
As previously mentioned, the uncertain point that is obtained has one at the most, in when counting uncertain point is removed to get final product.
Step 5 is utilized to retain in the photoelectric sending and receiving sensor array really that fixed point calculation goes out corresponding numerical value.
This process specifically utilizes the numerical operation processing module to finish.As previously mentioned, if test result does not comprise uncertain point, so, 5 photoelectric sending and receiving sensor groups 210 just can corresponding 5 binary point, by 2
5Individually may come to determine 0～90 numeral; If test result comprises a uncertain point, so, just with 4 remaining photoelectric sending and receiving sensor groups, 210 corresponding 4 binary point, by 2
4Individually may come to determine 0～90 numeral.
Utilize the utility model,, and determine the method for uncertain point on the character wheel, fundamentally eliminated because of reflective areas and the staggered photoelectric reading error that causes of non-reflective areas by uncertain some comparison module by AD reading mechanism.
More than be to description of the present utility model and unrestricted, based on other embodiment of the utility model thought, also all among protection domain of the present utility model.
Claims (7)
1. counter based on photoelectric sending and receiving sensor is characterized in that this counter comprises:
Runner, runner are provided with the reflective working lining of runner of reflective areas and non-reflective areas composition;
The photoelectric sending and receiving sensor array, corresponding the reflective working lining of described runner is provided with the photoelectric sending and receiving sensor group of forming by luminescent device and sensor devices;
Uncertain some comparison module, the reflective data on the runner that is obtained according to the photoelectric sending and receiving sensor array determines whether the pairing runner of each photoelectric sending and receiving sensor group zone is the modular structure of uncertain point;
The numerical operation processing module, be according to the photoelectric sending and receiving sensor array after screening out uncertain point, the digital signal that is obtained is converted into the modular structure of numerical value.
2. a kind of counter based on photoelectric sending and receiving sensor according to claim 1 is characterized in that: described runner, by evenly be provided with the numeral character wheel around.
3. a kind of counter according to claim 1 based on photoelectric sending and receiving sensor, it is characterized in that: on the reflective working lining of described runner, be provided with the reflective areas and the non-reflective areas that link up mutually, wherein reflective areas and non-reflective areas respectively account for half of the reflective working lining of runner.
4. a kind of counter according to claim 1 based on photoelectric sending and receiving sensor, it is characterized in that: in the photoelectric sending and receiving sensor array, corresponding each character wheel, be provided with and link up and equally distributed 5 photoelectric sending and receiving sensor groups, interval between the photoelectric sending and receiving sensor group and the figure blank on the character wheel are complementary.
5. a kind of counter based on the light sending and receiving sensor according to claim 4 is characterized in that: described 5 photoelectric sending and receiving sensors are arranged continuously, and deflection differs 36 degree between the adjacent sensors mid point.
6. a kind of counter according to claim 1 based on photoelectric sending and receiving sensor, it is characterized in that: in described uncertain some comparison module, supporting be directed to the AD sampling numerical value that the photoelectric sending and receiving sensor array is obtained, be divided into three zones by numerical value, be respectively retroreflective regions, critical zone and non-retroreflective regions, all points that belongs in the critical zone are uncertain point.
7. a kind of counter based on photoelectric sending and receiving sensor according to claim 1 is characterized in that: described photoelectric sending and receiving sensor array is arranged on the flexible PCB plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820156861U CN201373759Y (en) | 2008-12-10 | 2008-12-10 | Counter based on photoelectric transceiving sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820156861U CN201373759Y (en) | 2008-12-10 | 2008-12-10 | Counter based on photoelectric transceiving sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373759Y true CN201373759Y (en) | 2009-12-30 |
Family
ID=41499843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820156861U Expired - Lifetime CN201373759Y (en) | 2008-12-10 | 2008-12-10 | Counter based on photoelectric transceiving sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373759Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451870B (en) * | 2008-12-10 | 2010-12-22 | 上海复展照明科技有限公司 | Counter based on photoelectric sending and receiving sensor and implementing method thereof |
| CN104913822A (en) * | 2015-07-09 | 2015-09-16 | 彭红军 | Natural light interference resistant intelligent gas meter and gas sampling and detecting method |
-
2008
- 2008-12-10 CN CN200820156861U patent/CN201373759Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451870B (en) * | 2008-12-10 | 2010-12-22 | 上海复展照明科技有限公司 | Counter based on photoelectric sending and receiving sensor and implementing method thereof |
| CN104913822A (en) * | 2015-07-09 | 2015-09-16 | 彭红军 | Natural light interference resistant intelligent gas meter and gas sampling and detecting method |
| CN104913822B (en) * | 2015-07-09 | 2018-07-13 | 彭红军 | The intelligent gas meter and combustion gas sample detecting method of anti-natural light interference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20081210 |