CN204557132U - There is the microcomputer protecting device of temperature detection and function of temperature control - Google Patents
There is the microcomputer protecting device of temperature detection and function of temperature control Download PDFInfo
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- CN204557132U CN204557132U CN201520235881.5U CN201520235881U CN204557132U CN 204557132 U CN204557132 U CN 204557132U CN 201520235881 U CN201520235881 U CN 201520235881U CN 204557132 U CN204557132 U CN 204557132U
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Abstract
The utility model discloses a kind of microcomputer protecting device with temperature detection and function of temperature control; comprise processor; described processor is connected with power module, control module, protection module and human-computer interaction module; described human-computer interaction module comprises liquid crystal display, LED light and keyboard, and described processor is also connected with heating module and the temperature detecting module for testing environment temperature.Temperature detecting module testing environment temperature information transfers to processor; feedack compares with preset value by the comparer in processor; if temperature is lower than preset value; then trigger heating module to heat; improve the internal temperature of microcomputer protecting device; prevent Yin Wendu too low and the problem of LCD fault that causes, though ensure microcomputer protecting device out of doors low temperature environment also can normally work.
Description
Technical field
The utility model relates to a kind of microcomputer protecting device, and more particularly, it relates to a kind of microcomputer protecting device with temperature detection and function of temperature control.
Background technology
Microcomputer Protection does not go out chip single-chip microcomputer by high integration, bus, high-precision current voltage transformer (VT), high insulation resistance export the parts such as auxiliary reclay, high-reliability switch power module and form.Microcomputer protecting device, mainly as the generating plant, transformer station, distribution substation etc. of 110KV and following electric pressure, also can be used as protection and the observing and controlling of the electric current and voltage of system in electric pressure between part 70V-220V.
At present, the microcomputer protecting device on market, it comprises processor, and described processor is electrically connected with power module, control module, protection module and human-computer interaction module, and described human-computer interaction module comprises liquid crystal display, LED light and keyboard.Processor is as data processing core; control module detects the various electric signal in Circuits System and is transferred to processor process; protection module is responsible for protecting equipment and circuit when fault occurs, and realizes human-computer interaction by the liquid crystal display of human-computer interaction module, LED light and keyboard.This computer integrated protection; generally do not possess temperature detection and function of temperature control; when microcomputer protecting device is used for out of doors, especially at cold district, after temperature drops to subzero less than 15 degree; the liquid crystal display of microcomputer protecting device generally there will be problem; as screen flicker, after temperature drops to minus 20 degrees, liquid crystal can not show; now user can not obtain corresponding observing and controlling information from the liquid crystal display of microcomputer protecting device, affect the normal use of microcomputer protecting device.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of microcomputer protecting device with temperature detection and function of temperature control, can overcome the problem that low temperature environment causes LCD fault.
For achieving the above object; the utility model provides following technical scheme: a kind of microcomputer protecting device with temperature detection and function of temperature control; comprise processor; described processor is connected with power module, control module, protection module and human-computer interaction module; described human-computer interaction module comprises liquid crystal display, LED light and keyboard, and described processor is also connected with heating module and the temperature detecting module for testing environment temperature.
By adopting technique scheme; temperature detecting module testing environment temperature information transfers to processor; feedack compares with preset value by the comparer in processor; if temperature is lower than preset value; then trigger heating module to heat; improve the internal temperature of microcomputer protecting device, prevent Yin Wendu too low and the problem of LCD fault that causes, though ensure microcomputer protecting device out of doors low temperature environment also can normally work.
Further, described temperature detecting module comprises DS18B20 temperature sensor, and described DS18B20 temperature sensor is connected with processor.
By adopting technique scheme, sensor for temperature detection is a lot, traditional temperature element has thermopair and thermal resistance, and thermopair and thermal resistance are measured general be all voltage, convert corresponding temperature again to, need many external hardware supports, hardware circuit is complicated, software debugging is complicated, cost of manufacture is high, and adopt DS18B20 as detector unit, temperature-measuring range is that-55 degree are to 125 degree, resolution is maximum reaches 0.0625 degree, meet the temperature detection requirement of microcomputer protecting device, and DS18B20 carries A/D translation function, without the need to D/A converter module, three-wire system is adopted to be connected with processor, circuit structure is simple, there is low cost and wield feature.
Further, described heating module comprises bidirectional triode thyristor, zero cross detection circuit and heating wire, described zero cross detection circuit is connected with processor, and the gate pole of described bidirectional triode thyristor is connected with the I/O mouth of processor, described bidirectional triode thyristor, heating wire and power module three series connection.
By adopting technique scheme, zero passage detection is responsible for processor and provides zero cross signal, ensures the gate pole conveying trigger pip of processor to bidirectional triode thyristor, controls the on-state rate of bidirectional triode thyristor, to control the heating power of the heating wire of series connection with it.
Preferably, also photo-coupler is connected with between the gate pole of described bidirectional triode thyristor and the I/O mouth of processor.
By adopting technique scheme, the effect of photo-coupler is the conversion realizing " electrical-optical-electricity ", ensure that the electrical isolation between processor and bidirectional triode thyristor, ensures the stability of processor work.
Compared with prior art, the utility model has the advantage of, by temperature detection and heating arrangement, microcomputer protecting device is heated, prevent that temperature is too low causes LCD fault.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model has the microcomputer protecting device embodiment of temperature detection and function of temperature control;
Fig. 2 is the processor schematic diagram that the utility model has the microcomputer protecting device embodiment of temperature detection and function of temperature control;
Fig. 3 is the temperature detecting module circuit theory diagrams that the utility model has the microcomputer protecting device embodiment of temperature detection and function of temperature control;
Fig. 4 is the heating module circuit theory diagrams that the utility model has the microcomputer protecting device embodiment of temperature detection and function of temperature control;
Fig. 5 is the zero cross detection circuit schematic diagram that the utility model has the microcomputer protecting device embodiment of temperature detection and function of temperature control.
Embodiment
With reference to accompanying drawing, the microcomputer protecting device embodiment that the utility model has temperature detection and function of temperature control is described further.
With reference to Fig. 1, Fig. 2; a kind of microcomputer protecting device with temperature detection and function of temperature control; comprise processor; described processor is connected with power module, control module, protection module and human-computer interaction module; described human-computer interaction module comprises liquid crystal display, LED light and keyboard; above technical characteristic is existing open in the prior art; do not repeat at this; preferably; AT89C52 single-chip microcomputer selected by processor, and described processor is also connected with heating module and the temperature detecting module for testing environment temperature.
With reference to Fig. 3, described temperature detecting module comprises DS18B20 temperature sensor, and DS18B20 is three-terminal element, described DS18B20 temperature sensor is connected to processor by three-wire system wiring, its VCC termination power, Q end is connected to the I/O mouth of processor, and GND holds ground connection.Temperature detecting module testing environment temperature information transfers to processor; feedack compares with preset value by the comparer in processor; if temperature is lower than preset value; then trigger heating module to heat; improve the internal temperature of microcomputer protecting device; prevent Yin Wendu too low and the problem of LCD fault that causes, though ensure microcomputer protecting device out of doors low temperature environment also can normally work.
Sensor for temperature detection is a lot, traditional temperature element has thermopair and thermal resistance, and thermopair and thermal resistance are measured general be all voltage, convert corresponding temperature again to, need many external hardware supports, hardware circuit is complicated, software debugging is complicated, cost of manufacture is high, and adopt DS18B20 as detector unit, temperature-measuring range is that-55 degree are to 125 degree, resolution is maximum reaches 0.0625 degree, meet the temperature detection requirement of microcomputer protecting device, and DS18B20 carries A/D translation function, without the need to D/A converter module, three-wire system is adopted to be connected with processor, circuit structure is simple, there is low cost and wield feature.
Described heating module comprises bidirectional triode thyristor TRIAC, zero cross detection circuit and heating wire R.
With reference to Fig. 5; described zero cross detection circuit comprises comparer LM319; two input ends of LM319 connect 220V alternating current by resistance R4; further; between two input end, also cross-over connection has diode D1, D2 to realize input protection; its output terminal is connected to the I/O mouth of processor, for processor provides zero cross signal.
With reference to Fig. 4, the gate pole of described bidirectional triode thyristor TRIAC is connected to the I/O mouth of processor by photo-coupler CO, main terminal and the heating wire R of described bidirectional triode thyristor CO are serially connected in 220V power supply, the effect of photo-coupler is the conversion realizing " electrical-optical-electricity ", ensure that the electrical isolation between processor and bidirectional triode thyristor, the gate pole of the TRIAC of bidirectional triode thyristor receives trigger pip, controls the conduction angle of bidirectional triode thyristor, to control the heating power of heating wire R.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. one kind has the microcomputer protecting device of temperature detection and function of temperature control; comprise processor; described processor is connected with power module, control module, protection module and human-computer interaction module; described human-computer interaction module comprises liquid crystal display, it is characterized in that: described processor is also connected with heating module and the temperature detecting module for testing environment temperature.
2. the microcomputer protecting device with temperature detection and function of temperature control according to claim 1, is characterized in that: described temperature detecting module comprises DS18B20 temperature sensor, described DS18B20 temperature sensor is connected with processor.
3. the microcomputer protecting device with temperature detection and function of temperature control according to claim 1 and 2; it is characterized in that: described heating module comprises bidirectional triode thyristor, zero cross detection circuit and heating wire; described zero cross detection circuit is connected with processor; the gate pole of described bidirectional triode thyristor is connected with the I/O mouth of processor, described bidirectional triode thyristor, heating wire and power module three series connection.
4. the microcomputer protecting device with temperature detection and function of temperature control according to claim 3, is characterized in that: be also connected with photo-coupler between the gate pole of described bidirectional triode thyristor and the I/O mouth of processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235881.5U CN204557132U (en) | 2015-04-17 | 2015-04-17 | There is the microcomputer protecting device of temperature detection and function of temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235881.5U CN204557132U (en) | 2015-04-17 | 2015-04-17 | There is the microcomputer protecting device of temperature detection and function of temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204557132U true CN204557132U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520235881.5U Expired - Fee Related CN204557132U (en) | 2015-04-17 | 2015-04-17 | There is the microcomputer protecting device of temperature detection and function of temperature control |
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| Country | Link |
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| CN (1) | CN204557132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107491113A (en) * | 2017-04-19 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of fuzzy temperature control system based on ARM |
| CN115013793A (en) * | 2022-05-21 | 2022-09-06 | 晶阳照明有限公司 | Intelligent mining lamp in low-temperature environment and use method thereof |
-
2015
- 2015-04-17 CN CN201520235881.5U patent/CN204557132U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107491113A (en) * | 2017-04-19 | 2017-12-19 | 安徽华脉科技发展有限公司 | A kind of fuzzy temperature control system based on ARM |
| CN115013793A (en) * | 2022-05-21 | 2022-09-06 | 晶阳照明有限公司 | Intelligent mining lamp in low-temperature environment and use method thereof |
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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: 20150812 Termination date: 20160417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |