CN203893867U - Nixie tube display reading circuit based on photosensitive sensor - Google Patents
Nixie tube display reading circuit based on photosensitive sensor Download PDFInfo
- Publication number
- CN203893867U CN203893867U CN201420175106.0U CN201420175106U CN203893867U CN 203893867 U CN203893867 U CN 203893867U CN 201420175106 U CN201420175106 U CN 201420175106U CN 203893867 U CN203893867 U CN 203893867U
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- nixie tube
- photosensitive sensor
- tube display
- reading circuit
- module
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- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000002985 plastic film Substances 0.000 claims abstract description 3
- 229920006255 plastic film Polymers 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a nixie tube display reading circuit based on a photosensitive sensor; the nixie tube display reading circuit comprises a photosensitive sensor mounting module, a nixie tube display signal detection module and a microprocessor signal processing module; in the photosensitive sensor mounting module, light receiving surface of 8 paster photoresistors are tightly pasted on 8 nixie tube segment codes of a, b, c, d, e, f, g, dp through glue; pins of the photoresistors are respectively led out by aerial lines for usage, and the nixie tube is covered by a plastic film so as to fix the sensor; the photosensitive sensor is connected with nixie tube display signal detection module through a signal output line; the microprocessor signal processing module is connected with the nixie tube display signal detection module through a data line. The photosensitive sensor can map the brightness conditions of each segment of the nixie tube, thus restoring a display value. The nixie tube display reading circuit based on the photosensitive sensor can be used in a large scale equipment intelligent monitor system so as to obtain equipment state parameter values, thus greatly improving monitoring accuracy; the nixie tube display reading circuit is low in cost and high in feasibility.
Description
Technical field
The utility model relates to electronic circuit field, particularly relates to a kind of charactron registration reading circuit based on light sensor.
Background technology
In some important physical parameter monitoring engineerings, such as medical refrigerator temperature control, blood bank's blood store the engineerings such as refrigerator temperature control, chemical plant reacting furnace pressure control, and equipment itself all can adopt various instrument and meters parameter to be measured in real time and digital demonstration.In engineering, even can separately configure the intelligent monitor system of third party's exploitation, be convenient to the equipment of distribution comparatively dense to unify intelligent management.Intelligent monitor system on market often adopts separate configurations survey sensor again to detect parameter, the sensor differences using under different accuracy occasion is large, cost is high, and this measuring method can only be carried out local measurement to real work region, cause monitoring not comprehensive, the impact of the incorrect grade of measuring method.
For example medical refrigerator temperature control engineering, generally adopts the high precision temperature control medical refrigerator such as SANYO GS, Siemens, and body itself adopts multi way temperature sensor measurement digital demonstration, and the temperature measuring is comparatively accurate.The monitoring but the data that (hardware device design is fixing, circuit is complicated etc.) cannot record equipment under set environment are used, operating personnel can only observe and obtain current device running status voluntarily from charactron, more want additional configuration sensor to coordinate intelligent monitor system, the inconvenience bringing to Practical Project, raises the cost.
Summary of the invention
For the problems referred to above, fundamental purpose of the present utility model is to provide a kind of charactron registration reading circuit based on light sensor, carry out the inaccurate problem of local measurement physical parameter for solving intelligent monitor system additional configuration single channel sensor, the number that directly sensor of fetch equipment itself obtains easily shows data, low, simple in structure with respect to its cost of sensors configured.
The utility model provides a kind of charactron registration reading circuit based on light sensor, and it comprises light sensor installation module (1), charactron display detection module (2) and microprocessor signals processing module (3).
In light sensor installation module, use transparent glue 8 paster photoresistance (4) sensitive surface to be attached to respectively closely to a of 8 segment numeral pipes, b, c, d, e, f, g, on dp segment encode (5), use respectively senior airline (6) to draw the pin of photoresistance stand-by, and cover charactron fixation of sensor with viscous plastic film (7); Light sensor installation module (1) is connected with charactron display detection module (2) by stand-by sensor signal data line; Microprocessor signals processing module (3) is connected with charactron display detection module (2) by data line.
The beneficial effects of the utility model are: 1, in main equipment intelligent monitor system, the parameter charactron displayed value recording by reading sensor that high-end opertaing device is equipped with voluntarily, the monitoring result obtaining is more accurate, increases the accuracy of intelligent monitor system.2, adopt the master reference of paster photoresistance as information acquisition circuit, its testing circuit is simple, cost is low.3, the output of charactron display detection module can be set to digital signal, is convenient to the processing of signal.
Brief description of the drawings
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model light sensor installation module schematic diagram.
Fig. 3 is the utility model charactron display detection module partial circuit figure.
Fig. 4 is the utility model microprocessor signals processing module partial circuit figure.
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is removed, intactly described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, U1 be amplifier chip LM393, MCU be microprocessor chip STC89C51,8 segment numeral pipe attribute common cathodes or common anode all can, schematic diagram wiring explanation.
Light sensor installation module comprises.
8 segment numeral pipes, its connected mode is given according to engineering side circuit.
Photoresistance RL1, its one end is connected with described charactron display testing circuit sensor interface J1 one end, and the other end is connected with the described sensor interface J1 other end; Photoresistance RL1 is closely connected sensitive surface with 8 segment numeral pipe a sections by transparent glue.
Photoresistance RL2, its one end is connected with charactron display testing circuit sensor interface J2 one end, and the other end is connected with the sensor interface J2 other end; Photoresistance RL2 is closely connected sensitive surface with 8 segment numeral pipe b sections by transparent glue.
The connected mode the same to all the other 6 the same RL1 of photoresistance RL3-RL8, RL2 is connected with the corresponding c of charactron, d, e, f, g, dp section.
Charactron display testing circuit comprises.
Capacitor C 1, its one end is connected with positive source, and the other end is connected with the earth, for the high frequency clutter shorted to earth of power supply, reduces power supply and inputs the impact on chip.
Power light L1, its one end is connected with positive source, and the other end is connected with resistance R 1 one end.
Resistance R 1, its one end is connected with power light L1, and the other end is connected with the earth.
Capacitor C 2, its one end is connected with 2 pin (amplifier negative terminal) of amplifier chip LM393, and the other end is connected with the earth, for filtering stabilizing circuit.
Resistance R 2, its one end is connected with signal lamp L2 one end, and the other end is connected with 1 pin (amplifier output) of amplifier chip LM393.
Signal lamp L2, its one end is connected with resistance R 2, and the other end is connected with positive source.
Resistance R 3, its one end is connected with 1 pin (amplifier output terminal) of amplifier chip LM393, and the other end is connected with positive source.
Resistance R 4, its one end is connected with positive source, and the other end is connected with 2 pin (amplifier negative terminal) of amplifier chip LM393.
Interface J1, its one end is connected with 2 pin (amplifier negative terminal) of amplifier chip LM393, and the other end is connected with the earth, for accessing photoresistance RL1.
Potential regulator W1, its 1 pin is connected with positive source, and 2 pin are connected with the earth, and 3 pin are connected (amplifier anode) with 3 pin of amplifier chip LM393, for regulating the sensitivity of photoresistance RL1.
8 segment numeral pipes of light sensor installation module, are connected with the interface J1 in charactron display testing circuit by the photoresistance RL1 adhering in a section, obtain the demonstration information of 8 segment numeral pipe a sections.
Charactron display testing circuit also comprises.
Capacitor C 3, its one end is connected with 6 pin (amplifier negative terminal) of amplifier chip LM393, and the other end is connected with the earth, for filtering stabilizing circuit.
Resistance R 5, its one end is connected with signal lamp L3 one end, and the other end is connected with 7 pin (amplifier output) of amplifier chip LM393.
Signal lamp L3, its one end is connected with resistance R 5, and the other end is connected with positive source.
Resistance R 6, its one end is connected with 7 pin (amplifier output terminal) of amplifier chip LM393, and the other end is connected with positive source.
Resistance R 7, its one end is connected with positive source, and the other end is connected with 6 pin (amplifier negative terminal) of amplifier chip LM393.
Interface J2, its one end is connected with 6 pin (amplifier negative terminal) of amplifier chip LM393, and the other end is connected with the earth, for accessing photoresistance RL2.
Potential regulator W2, its 1 pin is connected with positive source, and 2 pin are connected with the earth, and 3 pin are connected (amplifier anode) with 5 pin of amplifier chip LM393, for regulating the sensitivity of photoresistance RL2.
8 segment numeral pipes of light sensor installation module, are connected with the interface J2 in charactron display testing circuit by the photoresistance RL2 adhering in b section, obtain the demonstration information of 8 segment numeral pipe b sections.
The detection of the demonstration information to c, d, e, f, g, dp segment numeral pipe adopts same photosensitive detection module, an independent photosensitive detection module can detect 2 segment numeral pipes simultaneously and show information, so charactron display detection module adopts 4 photosensitive detection modules altogether.
Microprocessor signals processing module comprises.
C4, C5 and Y1 form microprocessor crystal circuit.
C6, R8, R9 and S1 form microprocessor reset circuit.
Taking the light on and off of charactron a section as embodiment, potentiometer W1 is adjusted to applicable position, charactron a section is lighted, photoresistance reduces according to its characteristic resistance, 2 pin (amplifier negative terminal) of LM393 are low level, with 3 pin (amplifier anode) of LM393 do level relatively after, 1 pin (amplifier output) of LM393 output high level; Otherwise charactron a section is gone out, 1 pin of LM393 (amplifier output) output low level.By the show state of 8 sections of as above photosensitive detection charactrons, microprocessor receives the detection signal of 8 sections of charactrons, identification charactron reading.
Claims (1)
1. the charactron registration reading circuit based on light sensor, it comprises light sensor installation module (1), charactron display detection module (2) and microprocessor signals processing module (3), in light sensor installation module, use transparent glue 8 paster photoresistance (4) sensitive surface to be attached to respectively closely to a of 8 segment numeral pipes, b, c, d, e, f, g, on dp segment encode (5), use respectively senior airline (6) to draw the pin of photoresistance stand-by, and cover charactron fixation of sensor with viscous plastic film (7); Light sensor installation module (1) is connected with charactron display detection module (2) by stand-by sensor signal data line (6); Microprocessor signals processing module (3) is connected with charactron display detection module (2) by data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175106.0U CN203893867U (en) | 2014-04-12 | 2014-04-12 | Nixie tube display reading circuit based on photosensitive sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175106.0U CN203893867U (en) | 2014-04-12 | 2014-04-12 | Nixie tube display reading circuit based on photosensitive sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893867U true CN203893867U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175106.0U Expired - Fee Related CN203893867U (en) | 2014-04-12 | 2014-04-12 | Nixie tube display reading circuit based on photosensitive sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203893867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259842A (en) * | 2015-11-16 | 2016-01-20 | 中江联合(北京)科技有限公司 | Intelligent terminal for timely and automatically collecting LED digital display data |
| CN106205111A (en) * | 2016-09-14 | 2016-12-07 | 曾劲松 | Failure code shown by charactron and the reading of conditional code and remote transmitting device |
-
2014
- 2014-04-12 CN CN201420175106.0U patent/CN203893867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259842A (en) * | 2015-11-16 | 2016-01-20 | 中江联合(北京)科技有限公司 | Intelligent terminal for timely and automatically collecting LED digital display data |
| CN106205111A (en) * | 2016-09-14 | 2016-12-07 | 曾劲松 | Failure code shown by charactron and the reading of conditional code and remote transmitting device |
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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: 20141022 Termination date: 20150412 |
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| EXPY | Termination of patent right or utility model |