CN204085689U - A kind of proving installation of pilot lamp brightness uniformity - Google Patents
A kind of proving installation of pilot lamp brightness uniformity Download PDFInfo
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- CN204085689U CN204085689U CN201420519906.XU CN201420519906U CN204085689U CN 204085689 U CN204085689 U CN 204085689U CN 201420519906 U CN201420519906 U CN 201420519906U CN 204085689 U CN204085689 U CN 204085689U
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Abstract
The utility model discloses a kind of pilot lamp brightness uniformity pick-up unit, the luminance parameter of this device by adopting photosensitive device to detect each pilot lamp, and luminance parameter is compared, judge whether consistent; Comprise the testing circuit obtaining the reflection amount relevant to each pilot lamp brightness, amount that the brightness exported testing circuit is correlated with carries out digitized A/D change-over circuit and decision circuitry.This principle of device is simple and clear, and structure is simple, easy to use.
Description
Technical field
The utility model relates to pilot lamp luminance test field, the proving installation of brightness uniformity between each pilot lamp particularly with network equipments such as the switch of one group of pilot lamp, gateway devices.
Background technology
Pilot lamp, is used to indicate relevant illumination, wigwag, and to the thing wigwag that abnormal conditions give the alarm.Some electronic installations such as instrument, equipment are provided with pilot lamp in places such as dial plates, for representing that whether this signal is normal or whether equipment work is normal.If pilot lamp is that green expression is working properly, if display is redness, represent a kind of early warning etc., at present, computer equipment, the network equipment, particularly on the network communication equipment such as switch, pilot lamp is all a lot, on these equipment, each pilot lamp " one " word arranges or a few row is installed side by side as required, and the signal indicated by pilot lamp is indicated in place suitable near pilot lamp.
These have the equipment of one group of pilot lamp at present, operationally, each pilot lamp due to individual difference may brightness inconsistent, this can not affect the use of equipment, but always a kind of defect for the user, therefore, these equipment are when carrying out factory testing, often to detect the brightness of pilot lamp, whether unanimously mainly detect the pilot lamp brightness be installed together, if brightness looks like consistent, then can dispatch from the factory, otherwise need the pilot lamp changed and other pilot lamp seems inconsistent just can dispatch from the factory.At present, these work mainly pass through range estimation by experienced detection workman, if do not see in one group of pilot lamp have pilot lamp and other indicate brightness to have difference, then think that brightness is consistent, can dispatch from the factory, doing the very objective standard of neither one like this, is also very subjective by experienced detection workman, just can meet the requirements after can not ensureing detection.
Utility model content
The purpose of this utility model proposes a kind of proving installation detecting pilot lamp brightness uniformity, and whether the brightness that can be repeated all pilot lamp of also testing product by this objective proving installation is consistent.
The technical solution of the utility model is: a kind of pilot lamp brightness uniformity pick-up unit, the principle of work of this device tests the method for pilot lamp brightness uniformity above being exactly, the amount that this device comprises the testing circuit obtaining the reflection amount relevant to each pilot lamp brightness, the brightness exported testing circuit is correlated with carries out digitized A/D change-over circuit and decision circuitry;
Described testing circuit comprises photoresistance R1_n, divider resistance R1, and described photoresistance R1_n connects with divider resistance R1, a termination power, other end ground connection, and photoresistance R1_n and divider resistance R1 tie point are for exporting the A/D change-over circuit described in termination;
Also comprise fixed part, described fixed part fixes described photoresistance R1_n, makes described photoresistance R1_n and each tested pilot lamp keep same distance and pilot lamp to be irradiated to photoresistance R1_n angle constant.
In the utility model, decision circuitry is by comparing the voltage signal of the relevant photoresistance of A/D change-over circuit output, if each voltage signal is substantially identical, then the brightness showing these pilot lamp is over the display consistent, otherwise the brightness of display pilot lamp is inconsistent.
In scheme of the present utility model, have some optimal ways as: above in testing circuit photoresistance R1_n, divider resistance R1 series connection after composition circuit, two ends can connect power supply or ground, during as this end ground connection of photoresistance R1_n, when the luminance brightness of pilot lamp is stronger, the resistance of photoresistance R1_n is less, and the voltage of output is also smaller.When this termination direct supply of quick resistance R1_n, when the luminance brightness of pilot lamp is stronger, the resistance of photoresistance R1_n is less, and the voltage of output is also higher.
In order to ensure the comparatively fruit exported, also arrange compensate for brightness testing circuit in superincumbent test circuit, compensate for brightness testing circuit comprises photoresistance R2_n and digital regulation resistance R2, and photoresistance R2_n and digital regulation resistance R2 connects; The same with the circuit that forms after photoresistance R1_n, divider resistance R1 connect, when this end ground connection of photoresistance R1_n, photoresistance R2_n also ground connection.In addition, light source access insulating element is also comprised; Light source access insulating element is provided with blind hole, and when with described tested switch ports themselves panel attachment, pilot lamp stretches in these via holes respectively; Photoresistance R1_n is arranged on immediately below the via hole of described light source access insulating element.Like this, due to the existence of light source access insulating element, make can not mutually disturb between each pilot lamp, Detection results is truer.
Below in conjunction with specific embodiment, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the utility model functional-block diagram.
Fig. 2 is that the utility model embodiment 1 inputs detection module structural drawing.
Fig. 3 inputs detection module to the utility model embodiment 1 to output signal the circuit theory diagrams detected.
Fig. 4 is that source of parallel light irradiates schematic diagram.
Fig. 5 is general light source irradiation schematic diagram.
Fig. 6 is optical radiation angle and the light intensity view of LED light source.
Embodiment
Embodiment 1, the present embodiment is a kind of device for testing causing property of gateway product pilot lamp brightness, and principle adopts photosensitive device, as photoresistance, such photoresistance is penetrated lower resistance in the illumination of pilot lamp and will be diminished, then the size by detecting photoresistance represents the brightness of pilot lamp, when photoresistance resistance is less, illustrates that pilot lamp brightness is stronger, otherwise, when photoresistance resistance is larger, what reflect is that pilot lamp brightness is more weak, and schematic diagram as shown in Figure 1.If adopt the photoresistance that one group of characteristic is consistent, the light receiving a pilot lamp is respectively received as adopted the photoresistance of same batch, if the resistance of these photoresistance is identical, then think that these pilot lamp brightness are consistent, certainly, prerequisite is these pilot lamp is all the same with the relative position of photoresistance, simultaneously mutually isolated again, can not mutually disturb.
The specific practice of the present embodiment is as follows:
First, obtain the amount that reflection is relevant to each pilot lamp brightness, here adopt the distance apart from tested pilot lamp equal, and the identical photosensitive device (photoresistance) of tested pilot lamp direction of illumination obtain the reflection amount relevant to each pilot lamp brightness; In this step, adopt the brightness of photoresistance reflection pilot lamp, key refers to that the position relationship between pilot lamp with photoresistance wants consistent here.Resistance value when irradiating under tested pilot lamp the same terms by measuring photoresistance is as the correlation of tested instruction brightness.Reflected resistance value can be carried out by the voltage measuring photoresistance two ends, finally magnitude of voltage digitizing can be compared.
Next obtains standard value; This step Plays value, standard value has a lot, can be median or the average of one group of measured pilot lamp correlative, also can be empirical value when usually detecting.
The last amount relevant to each pilot lamp brightness step 1 obtained successively compares with standard value, if there is difference to be greater than the thresholding of setting, then judgement pilot lamp and other pilot lamp brightness inconsistent and indicate this tested instruction and other pilot lamp brightness inconsistent.Threshold value is empirical value.
As shown in Figure 1, pilot lamp brightness uniformity pick-up unit in the present embodiment, the principle of work of this device tests the method for pilot lamp brightness uniformity above being exactly, the amount that this device comprises the testing circuit obtaining the reflection amount relevant to each pilot lamp brightness, the brightness exported testing circuit is correlated with carries out digitized A/D change-over circuit and decision circuitry;
Testing circuit comprises photoresistance R1_n, divider resistance R1, and photoresistance R1_n connects with divider resistance R1, a termination power, other end ground connection, and photoresistance R1_n and divider resistance R1 tie point are for exporting the A/D change-over circuit described in termination; Also comprise light source access insulating element 1, light source access insulating element 1 isolates fixing photoresistance R1_n respectively, light source access insulating element arranges blind hole 2, makes photoresistance R1_n and each tested pilot lamp keep same distance and pilot lamp to be irradiated to photoresistance R1_n angle constant.
The circuit formed after photoresistance R1_n, divider resistance R1 series connection in testing circuit above, two ends can connect power supply or ground, during as this end ground connection of photoresistance R1_n, when the luminance brightness of pilot lamp is stronger, the resistance of photoresistance R1_n is less, and the voltage of output is also smaller.When this termination direct supply of quick resistance R1_n, when the luminance brightness of pilot lamp is stronger, the resistance of photoresistance R1_n is less, and the voltage of output is also higher.
In order to ensure the comparatively fruit exported, also arrange compensate for brightness testing circuit in superincumbent test circuit, compensate for brightness testing circuit comprises photoresistance R2_n and digital regulation resistance R2, and photoresistance R2_n and digital regulation resistance R2 connects; The same with the circuit that forms after photoresistance R1_n, divider resistance R1 connect, when this end ground connection of photoresistance R1_n, photoresistance R2_n also ground connection.
About light intensity test, due to for a pilot lamp, the angle of irradiating with the Distance geometry light of light source all may affect the bright intensity of test, therefore, needs to carry out dynamic adjustments, dynamic adjustments for angular.Following description:
Corresponding source of parallel light is with regard to it doesn't matter angle, and the light intensity of each point of transmission on same surface level, can look equal, then the saying of non-angular, as shown in Figure 4.
And in real network equipment, the light that light source sends not is directional light but divergent radiation light, the angle sent through light-transmissive film due to radiation also can be different, the light intensity reaching each point on same surface level also can be different, the light that in figure, LED 3 sends by transparent film 4, as shown in Figure 5.Figure 6 shows that optical radiation angle and light intensity view in certain LED specifications.
R1_n and R2_n is photoresistance, and the characteristic of photoresistance is exactly its resistance value minimizing under light illumination and is considered as with light intensity close to linear.R1_n and R2_n photoresistance installation site is immediately below light source access isolation junction component via hole.Conjunction is close in lamp position access test module being aimed at switch ports themselves panel when carrying out testing, and such port led just can only shine in photoresistance.Wherein R1_n is that subjective brightness detects photoresistance, and R2_n is that compensate for brightness detects photoresistance.R2_n compensates photoresistance and digital regulation resistance serial connection, and processing controller can pass through compensating test algorithm, and the impact having reached the factor such as angle correction and temperature and brought is adjusted in training school.
Embodiment 2 is a kind of switch ports themselves pilot lamp brightness uniformity pick-up units, as shown in Figure 2, comprises access detection module, A/D change-over circuit and decision circuitry; Access detection module comprises light source access isolation structure and testing circuit; As shown in Figure 3, in profile, mainly a light source accesses insulating element 1, and light source access insulating element is provided with blind hole 2, and when with tested switch ports themselves panel attachment, pilot lamp stretches in these blind holes 2 respectively; Like this, when the pilot lamp of switch ports themselves is each enter into blind hole 2 time, due to the lighttight material of light source access isolation structure employing itself, like this, would not mutually disturb between each pilot lamp.In addition, also has testing circuit, testing circuit in the same manner as in Example 1, also be comprise photoresistance R1_n, divider resistance R1, photoresistance R1_n connects with divider resistance R1, one termination power, other end ground connection, photoresistance R1_n and divider resistance R1 tie point are for exporting the A/D change-over circuit described in termination; Photoresistance R1_n is arranged on immediately below the via hole of described light source access insulating element.Cover a pilot lamp in each like this blind hole 2, will represent that the signal of pilot lamp intensity is input to A/D change-over circuit and decision circuitry through such testing circuit; Also can be input in computer after AD conversion, judge in computer.
Equally, in order to ensure the comparatively fruit exported, also arrange compensate for brightness testing circuit in the test circuit in superincumbent each via hole 2, compensate for brightness testing circuit comprises photoresistance R2_n and digital regulation resistance R2, and photoresistance R2_n and digital regulation resistance R2 connects; The same with the circuit that forms after photoresistance R1_n, divider resistance R1 connect, when this end ground connection of photoresistance R1_n, photoresistance R2_n also ground connection.
Switch ports themselves light detects divergent light source as shown in Figure 5, suppose that light emitting LED lamp 3 installs light-transmissive film 4 central point on opposite just, and R1-n photoresistance is just in time positioned at center section, its light intensity maximal value; R2-n photoresistance then supposes that the unified left side of medium line that is positioned at is apart from R1-n photosensitive medium line position 5mm.If all of the port R1-n photoresistance and the voltage digital that R2-n photoresistance is measured are close to illustrating that LED brightness is all consistent with setting angle.
If the R2-n photoresistance of individual port is under equal digital regulation resistance value condition, the magnitude of voltage measured differs greatly with other, illustrate that LED installation site offsets, not to upper printing opacity facial mask or LED likely its luminous colloid of batch mixing be different from its medium parameter.
R1-n photoresistance test result feedback be key light strength difference, illustrate that the light intensity of which port led is inconsistent or undesirable; The result feedback of R2-n photoresistance test be that light intensity difference produces possible cause: the skew of LED installation site or LED luminous colloid parameter inconsistent.
In the present embodiment, the amount relevant about all pilot lamp brightness of switch ports themselves obtained by input detection module, the voltage signal namely exported between photoresistance R1_n and divider resistance R1 and the compensation adjustment signal between photoresistance R2_n and divider resistance R2 are input to count to survey to show controls module, in this module, control processor is processed by these two amounts, pilot lamp consistance whether is shown in display unit.
Claims (4)
1. a pilot lamp brightness uniformity pick-up unit, comprises the testing circuit obtaining the reflection amount relevant to each pilot lamp brightness, amount that the brightness exported testing circuit is correlated with carries out digitized A/D change-over circuit and decision circuitry; It is characterized in that:
Described testing circuit comprises photoresistance R1_n, divider resistance R1, and described photoresistance R1_n connects with divider resistance R1, a termination power, other end ground connection, and photoresistance R1_n and divider resistance R1 tie point are for exporting the A/D change-over circuit described in termination;
Also comprise fixed part, described fixed part fixes described photoresistance R1_n, makes described photoresistance R1_n and each tested pilot lamp keep same distance and pilot lamp to be irradiated to photoresistance R1_n angle constant.
2. pilot lamp brightness uniformity pick-up unit according to claim 1, is characterized in that: another termination power of described divider resistance R1, the other end ground connection of described photoresistance R1_n;
Also comprise compensate for brightness testing circuit, described compensate for brightness testing circuit comprises photoresistance R2_n and digital regulation resistance R2, and described photoresistance R2_n and digital regulation resistance R2 connects; The other end ground connection of described described photoresistance R2_n, another termination power of described digital regulation resistance R2.
3. pilot lamp brightness uniformity pick-up unit according to claim 1, is characterized in that: the other end ground connection of described divider resistance R1, another termination power of described photoresistance R1_n;
Also comprise compensate for brightness testing circuit, described compensate for brightness testing circuit comprises photoresistance R2_n and digital regulation resistance R2, and described photoresistance R2_n and digital regulation resistance R2 connects; Another termination power of described described photoresistance R2_n, the other end ground connection of described digital regulation resistance R2.
4., according to described pilot lamp brightness uniformity pick-up unit arbitrary in claims 1 to 3, it is characterized in that: also comprise light source access insulating element (1);
Described light source access insulating element (1) is provided with the blind hole (2) similar to tested pilot lamp quantity, and when with tested pilot lamp panel attachment, pilot lamp stretches in these blind holes (2) respectively; Photoresistance R1_n is arranged on immediately below the via hole of described light source access insulating element.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420519906.XU CN204085689U (en) | 2014-09-11 | 2014-09-11 | A kind of proving installation of pilot lamp brightness uniformity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420519906.XU CN204085689U (en) | 2014-09-11 | 2014-09-11 | A kind of proving installation of pilot lamp brightness uniformity |
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| CN204085689U true CN204085689U (en) | 2015-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316170A (en) * | 2014-09-11 | 2015-01-28 | 深圳市共进电子股份有限公司 | Indicating lamp brightness consistency test method and test apparatus |
| CN117969946A (en) * | 2024-04-01 | 2024-05-03 | 山东普源电力工程有限公司 | Lighting system energy consumption detection method and system |
-
2014
- 2014-09-11 CN CN201420519906.XU patent/CN204085689U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316170A (en) * | 2014-09-11 | 2015-01-28 | 深圳市共进电子股份有限公司 | Indicating lamp brightness consistency test method and test apparatus |
| CN117969946A (en) * | 2024-04-01 | 2024-05-03 | 山东普源电力工程有限公司 | Lighting system energy consumption detection method and system |
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