CN102594173B - Converting device and method of alternating voltage for intensive flue-cured tobacco controller - Google Patents
Converting device and method of alternating voltage for intensive flue-cured tobacco controller Download PDFInfo
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- CN102594173B CN102594173B CN201110413139.5A CN201110413139A CN102594173B CN 102594173 B CN102594173 B CN 102594173B CN 201110413139 A CN201110413139 A CN 201110413139A CN 102594173 B CN102594173 B CN 102594173B
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Abstract
Disclosed are a converting device and a method of alternating voltage for an intensive flue-cured tobacco controller, and relates to the intensive flue-cured tobacco controller. The voltage obtention of the existing flue-cured tobacco controller can not combine accuracy, reliability and cost. The converting device and the method of the alternating voltage for the intensive flue-cured tobacco controller are characterized in that the converting device comprises a power frequency transformer, a rectification filtering unit, a drive unit, a current sampling unit, a voltage sampling unit, and a central processing unit (CPU), wherein the rectification filtering unit is connected with the power frequency transformer, the drive unit is used for driving a direct-current motor, the current sampling unit is used for obtaining current of the direct-current motor, the voltage sampling unit is used for obtaining load voltage, and the CPU is connected with the current sampling unit and the voltage sampling unit; and scaling factor of input alternating voltage and the load voltage of the power frequency transformer is calculated when different current of the direct-current motor is prestored by an electrically erasable programmable read-only memory (EEPROM) arranged inside the CPU, and the CPU obtains input voltage of power frequency transformer according to the information of the current sampling unit and the voltage sampling unit. The technical scheme of the converting device and the method of alternating voltage for the intensive flue-cured tobacco controller have the advantages of high accuracy, good reliability, and low cost.
Description
Technical field
The present invention relates to a kind of intensive flue-cured tobacco controller.
Background technology
The industry standard that flue-cured tobacco controller goes out according to Chinese tobacco need to be sampled to the 220V alternating voltage of input.The method of sampling of 220V alternating voltage mainly contains four kinds now, one is to adopt simple electric resistance partial pressure, gather the voltage after dividing potential drop, extrapolate 220V alternating voltage, this method is difficult to realize forceful electric power and the light current physical isolation aspect electric, do not isolate due to control circuit and forceful electric power electrical network, control circuit is fragile, and in the time of maintenance, security incident easily occurs, second method, light lotus root isolation again after first dividing potential drop, for example, the patent No. is 200820060280.5 " a kind of voltage check device of centrifuge frequency converter ", the method is that after adopting first dividing potential drop, linear optical coupling is isolated A/D conversion method again, although the method has realized control circuit and the isolation of forceful electric power electrical network,, because linear optical coupling cost is very high, thereby economic angle is infeasible, the third method, input 220V alternating voltage obtains a road power supply through transformer, the voltage drawing by sampling transformation is extrapolated 220V alternating voltage, for example, the patent No. is 01127640.1 " provenance voltage sampling method and a device ", again for example, " variable frequency speed regulation input voltage conversion device of dither and the method thereof " of number of patent application 200910308642.7, use the method, out the load of Gai road voltage is more stable to require transformer transformation, the input voltage of guarantee transformer and output voltage coefficient are stable, but, in flue-cured tobacco controller, transformer transformation voltage out will remove to drive direct current relay and direct current machine, and, relay and motor are not that the moment is all in work, thereby, the transformation out load of Gai road voltage is not constant, for example, when unloaded, 220V input voltage, after transformer, output voltage is 12V, if this 12V voltage need to be powered to direct current machine, even identical input voltage 220V and same transformer, transformer output voltage also only has 11.8V left and right., address this problem for this reason, have the 4th kind of method, the namely 220V voltage last samples method of current barn controller, 220V alternating voltage, by an Industrial Frequency Transformer, is exported two-way power supply, one tunnel powers for relay, power supply, direct current machine, this road power supply is loop of power circuit in industry, and another road power supply enters A/D conversion after by rectifying and wave-filtering, and this road power supply is 220V interchange sampling loop in industry, its branch road is more, equipment cost is high, and volume is large, and circuit is numerous and diverse.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that prior art scheme is improved and improved, and is provided for alternating voltage conversion equipment and the method thereof of intensive flue-cured tobacco controller, to reach accuracy, reliability, and the object reducing costs.For this reason, the present invention takes following technical scheme.
For the alternating voltage conversion equipment of intensive flue-cured tobacco controller, it is characterized in that: it comprises Industrial Frequency Transformer, the rectification filtering unit being connected with Industrial Frequency Transformer, for driving the driver element of direct current machine, for obtaining the current sampling unit of direct current machine electric current, for obtaining the voltage sample unit of load voltage, the central processing unit being connected with voltage sample unit with current sampling unit, the proportionality coefficient of Industrial Frequency Transformer input ac voltage and load voltage while prestoring the different electric current of direct current machine in the built-in EEPROM of central processing unit, central processing unit is according to the input voltage of the information acquisition Industrial Frequency Transformer of current sampling unit and voltage sample unit.
For the alternating voltage conversion method of intensive flue-cured tobacco controller, it is characterized in that it comprises the following steps:
1) when the input ac voltage of Industrial Frequency Transformer is constant, test resistance is changed in direct current machine two ends, input ac voltage and the load voltage of Industrial Frequency Transformer when adjustment test resistance resistance makes the electric current of test resistance be respectively 0A, 0.1A, 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1.0A, 1.1A, 1.2A, and the input ac voltage of Industrial Frequency Transformer and the ratio of load voltage while calculating different electric current, this ratio is preserved as proportionality coefficient;
2) direct current machine current value and load voltage value are sampled;
3) central processing unit calculates the input ac voltage of Industrial Frequency Transformer according to the current value of sampling, magnitude of voltage and the proportionality coefficient corresponding with this current value.
As the further of technique scheme improved and supplemented, the present invention also comprises following additional technical feature.
The input ac voltage of Industrial Frequency Transformer is the product of sample voltage value and proportionality coefficient.
Proportionality coefficient between 2 is by interpolation calculation.
Beneficial effect:
1, adopt Industrial Frequency Transformer, on circuit structure, realized the isolation between civil power forceful electric power and message processing module end light current, guaranteed the safety of sample circuit, and its cost is low compared with high frequency transformer.
2, owing to having gathered direct current machine electric current, can pass through the proportionality coefficient to input voltage and direct voltage in different loads situation according to this current value, obtain input ac voltage by voltage sample unit, compared with 220V alternating voltage sampling Shao Liao No. mono-transformer branch road of current flue-cured tobacco controller, reduce equipment cost, reduce volume, simplify circuit simultaneously.
Brief description of the drawings
Fig. 1 is principle of the invention structural representation.
Fig. 2 is electrical block diagram of the present invention.
Embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, the present invention includes Industrial Frequency Transformer, the rectification filtering unit being connected with Industrial Frequency Transformer, for driving the direct current machine driver element of direct current machine, for obtaining the current sampling unit of load current, for the central processing unit that obtains the voltage sample unit of load voltage and be connected with voltage sample unit with current sampling unit, the proportionality coefficient of Industrial Frequency Transformer input ac voltage and load voltage while prestoring different loads electric current in described central processing unit, central processing unit is according to the input voltage of the information acquisition Industrial Frequency Transformer of current sampling unit and voltage sample unit.As shown in Figure 2, voltage sample unit comprises the first divider resistance R15 that one end load connects, one end is connected with the first divider resistance R15 other end and the second divider resistance R14 of other end ground connection, and the link of the first divider resistance R15 and the second divider resistance R14 is the rectifying and wave-filtering voltage sample end A/D2 being connected with central processing unit.Current sampling unit comprises that one end is connected with load and the first current sampling resistor R9 of other end ground connection, one end are connected with load and the other end is connected with the link of the 3rd current sampling resistor R10 with the second current sampling resistor R12 by the 3rd current sampling resistor R10, one end of the second current sampling resistor R12 ground connection and the other end is the 4th sampling resistor R13 of the direct current machine current sample end A/D1 that is connected with central processing unit.
For the alternating voltage conversion method of intensive flue-cured tobacco controller, comprise the following steps:
1) when the input ac voltage of Industrial Frequency Transformer is constant, test resistance is changed in direct current machine two ends, input ac voltage and the load voltage of Industrial Frequency Transformer when adjustment test resistance resistance makes the electric current of test resistance be respectively 0A, 0.1A, 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1.0A, 1.1A, 1.2A, and the input ac voltage of Industrial Frequency Transformer and the ratio of load voltage while calculating different electric current, this ratio is preserved as proportionality coefficient;
2) direct current machine current value and load voltage value are sampled;
3) central processing unit calculates the input ac voltage of Industrial Frequency Transformer according to the current value of sampling, magnitude of voltage and the proportionality coefficient corresponding with this current value.
The input ac voltage of Industrial Frequency Transformer T1 is the product of sample voltage value and proportionality coefficient.Proportionality coefficient between 2 is by interpolation calculation.
Claims (4)
1. for the alternating voltage conversion equipment of intensive flue-cured tobacco controller, it is characterized in that: it comprises Industrial Frequency Transformer, the rectification filtering unit being connected with Industrial Frequency Transformer, for driving the driver element of direct current machine, for obtaining the current sampling unit of direct current machine electric current, for obtaining the voltage sample unit of load voltage, the central processing unit being connected with voltage sample unit with current sampling unit, the proportionality coefficient of Industrial Frequency Transformer input ac voltage and load voltage while prestoring the different electric current of direct current machine in the built-in EEPROM of central processing unit, central processing unit is according to the input voltage of the information acquisition Industrial Frequency Transformer of current sampling unit and voltage sample unit.
2. for the alternating voltage conversion method of intensive flue-cured tobacco controller, it is characterized in that it comprises the following steps:
1) when the input ac voltage of Industrial Frequency Transformer is constant, test resistance is changed in direct current machine two ends, input ac voltage and the load voltage of Industrial Frequency Transformer when adjustment test resistance resistance makes the electric current of test resistance be respectively 0A, 0.1A, 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1.0A, 1.1A, 1.2A, and the input ac voltage of Industrial Frequency Transformer and the ratio of load voltage while calculating different electric current, this ratio is preserved as proportionality coefficient;
2) direct current machine current value and load voltage value are sampled;
3) central processing unit calculates the input ac voltage of Industrial Frequency Transformer according to the current value of sampling, magnitude of voltage and the proportionality coefficient corresponding with this current value.
3. the alternating voltage conversion method for intensive flue-cured tobacco controller according to claim 2, is characterized in that: the input ac voltage of Industrial Frequency Transformer is the product of sample voltage value and proportionality coefficient.
4. the alternating voltage conversion method for intensive flue-cured tobacco controller according to claim 3, is characterized in that: the proportionality coefficient between 2 is by interpolation calculation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110413139.5A CN102594173B (en) | 2011-12-13 | 2011-12-13 | Converting device and method of alternating voltage for intensive flue-cured tobacco controller |
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| CN201110413139.5A CN102594173B (en) | 2011-12-13 | 2011-12-13 | Converting device and method of alternating voltage for intensive flue-cured tobacco controller |
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| CN102594173A CN102594173A (en) | 2012-07-18 |
| CN102594173B true CN102594173B (en) | 2014-08-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2107675A1 (en) * | 2007-01-24 | 2009-10-07 | Panasonic Corporation | Dc power supply device and air conditioner using the same |
| CN201489379U (en) * | 2009-06-18 | 2010-05-26 | 福建省烟草公司南平市公司 | System for controlling temperature and humidity of tobacco drying room |
| WO2010064489A1 (en) * | 2008-12-03 | 2010-06-10 | シャープ株式会社 | Power supply device |
| CN201523333U (en) * | 2009-10-22 | 2010-07-07 | 卧龙电气集团股份有限公司 | Variable frequency speed regulation input voltage conversion device of dither motor |
| CN101841292A (en) * | 2010-06-07 | 2010-09-22 | 苏州能健电气有限公司 | Direct-current motor driver of wind generating variable-propeller control system |
| CN202475290U (en) * | 2011-12-13 | 2012-10-03 | 卧龙电气集团股份有限公司 | AC voltage conversion device used for intensive flue-cured tobacco controller |
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- 2011-12-13 CN CN201110413139.5A patent/CN102594173B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2107675A1 (en) * | 2007-01-24 | 2009-10-07 | Panasonic Corporation | Dc power supply device and air conditioner using the same |
| WO2010064489A1 (en) * | 2008-12-03 | 2010-06-10 | シャープ株式会社 | Power supply device |
| CN201489379U (en) * | 2009-06-18 | 2010-05-26 | 福建省烟草公司南平市公司 | System for controlling temperature and humidity of tobacco drying room |
| CN201523333U (en) * | 2009-10-22 | 2010-07-07 | 卧龙电气集团股份有限公司 | Variable frequency speed regulation input voltage conversion device of dither motor |
| CN101841292A (en) * | 2010-06-07 | 2010-09-22 | 苏州能健电气有限公司 | Direct-current motor driver of wind generating variable-propeller control system |
| CN202475290U (en) * | 2011-12-13 | 2012-10-03 | 卧龙电气集团股份有限公司 | AC voltage conversion device used for intensive flue-cured tobacco controller |
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