CN103592971A - A temperature controller and a control method thereof - Google Patents
A temperature controller and a control method thereof Download PDFInfo
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- CN103592971A CN103592971A CN201210288426.2A CN201210288426A CN103592971A CN 103592971 A CN103592971 A CN 103592971A CN 201210288426 A CN201210288426 A CN 201210288426A CN 103592971 A CN103592971 A CN 103592971A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 58
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 230000006855 networking Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Abstract
The invention provides a temperature controller with a communication function and a control method thereof. The temperature controller comprises a microprocessor module, a signal acquisition module connected with the microprocessor module, and a communication module connected with the microprocessor module. The temperature controller provided with a networking communication function has characteristics of reasonably controlling output, effectively protecting a compressor and a refrigeration house, and prolonging a service life.
Description
Technical field
The present invention relates to temperature of ice house controller field, especially relate to a kind of temperature controller and control method thereof with communication function, be applicable to require to have the Intelligent refrigeration control system of networking monitoring function.
Background technology
Current, along with developing rapidly of electronic technology and improving constantly of automatization level, microcomputer-recognized intelligent temperature controller is being widely used in temperature and is regulating and control and Energy Saving Control field.Intelligent temperature controller on market has abundant function mostly, they use single-chip microcomputer as central processing unit, adopt thermistor or digital temperature integrated sensor collecting temperature, temperature controller has the output control modes such as compressor control, multiple defrosting control, various air-blower controls; Interface adopts LED charactron or liquid crystal display, has pilot lamp indication and controls and alarm condition, and demonstration information comprehensively, intuitively; These temperature controller complete functions, can be used in conventional use substantially, close, and lack technology but be not suitable for being used in the temperature control field that needs networking monitoring to use aspect freezer, compressor protection.
In view of this, this area is needed a kind of temperature controller with communication function badly, is applicable to require to have the Intelligent refrigeration control system of networking monitoring function.
Summary of the invention
In order to solve the deficiency of above-mentioned technology, the invention provides a kind of band communication function temperature controller; Adopt RS485 communication modes, can with host computer networking communication, real-time communication, monitoring storehouse temperature value change and various output state, strengthen remote collection data and on-the-spot ability is controlled in management.
For solving the problems of the technologies described above, the invention provides a kind of temperature controller with communication function, comprising: microprocessor module; Signal acquisition module, it is connected to described microprocessor module; And communication module, it is connected to described microprocessor module.
What as another embodiment, provide is a kind of perfect, also comprises: key-press module, and it is connected to described microprocessor module; Display module, it is connected to described microprocessor module; Real-time clock module, it is connected to described microprocessor module; And control output module, it is connected to described microprocessor module, and connects compressor, defroster, blower fan, solenoid valve; And alarm output module, it is connected to described microprocessor module.
What as another embodiment, provide is a kind of perfect, and described output control module comprises: multiple output control switch, is connected to compressor, defroster, blower fan, solenoid valve.
What as another embodiment, provide is a kind of perfect, and described signal acquisition module comprises: storehouse temperature sensor and evaporator temperature sensor.
What as another embodiment, provide is a kind of perfect, and described signal acquisition module comprises: thermistor, is used in Real-time Collection storehouse and evaporator surface temperature.
What as another embodiment, provide is a kind of perfect, and described communication module comprises: RS485 communication chip, signal isolation optocoupler and DC-DC isolated from power chip.
What as another embodiment, provide is a kind of perfect, and described communication module comprises: ModBus-RTU agreement.
What as another embodiment, provide is a kind of perfect, and described communication module adopts the communication mode of " inquiry-response ".
For solving the problems of the technologies described above, the present invention also provides temperature-controlled process, comprising: when refrigeration system need to start, compressor first starts, after first schedule time, and solenoid valve adhesive; And
When refrigeration system quits work, first turn-off solenoid valve, cut off refrigerant loop, compressor remains in operation, and system pressure reduces, and after second schedule time, compressor cuts out.
What as another embodiment, provide is a kind of perfect, and described first schedule time is 3 seconds; And described second schedule time is 10 seconds.
The invention has the beneficial effects as follows: rationally control output, effectively protect compressor and freezer, increase the service life; Can networking use, with host computer real-time communication, effective monitoring storehouse temperature value and various output state, facilitate parameter referring to and change, strengthen remote data acquisition and on-the-spot ability is controlled in management.
Accompanying drawing explanation
Fig. 1 is the circuit module figure according to the specific embodiment of the invention;
Fig. 2 is according to the temperature controller of the specific embodiment of the invention and Upper machine communication module figure;
Fig. 3 opens protection process flow diagram according to the compressor of the specific embodiment of the invention;
Fig. 4 stops protecting process flow diagram according to the compressor of the specific embodiment of the invention.
Embodiment
For solving the problems of the technologies described above, embodiment provided by the invention is: this controller comprises microprocessor module, the signal acquisition module being formed by storehouse temperature sensor and evaporator temperature sensor, communication module, key-press module, LED charactron display module, real-time clock module, control, alarm output module; Microprocessor is the core of whole system, and other modules connect respectively at microprocessor.Communication module is used 485 communication modes, adopts ModBus-RTU agreement, with control and management computing machine (host computer) real-time communication; Export controlled compressor processed, defroster, blower fan, solenoid valve.Its advantage is: rationally control output, effectively protect compressor and freezer, increase the service life; Can networking use, with host computer real-time communication, effective monitoring storehouse temperature value and various output state, facilitate parameter referring to and change, strengthen remote data acquisition and on-the-spot ability is controlled in management.
What as another embodiment, provide is a kind of perfect, the invention provides a kind of temperature controller with communication function, comprise microprocessor module, the signal acquisition module being formed by storehouse temperature sensor and evaporator temperature sensor being connected with microprocessor, 485 communication modules that are connected with microprocessor, the key-press module being connected with microprocessor respectively, LED charactron display module, real-time clock module, the output module of the control compressor being connected with microprocessor, defroster, blower fan, solenoid valve, the alarm output module being connected with microprocessor IC1.
What as another embodiment, provide is a kind of perfect, the invention provides a kind of temperature controller with communication function, 485 described communication modules mainly consist of RS485 communication chip, signal isolation optocoupler, DC-DC isolated from power chip, carry out in real time communication with host computer, communication distance is long, good in anti-interference performance;
What as another embodiment, provide is a kind of perfect, the invention provides a kind of temperature controller with communication function, the described storehouse temperature sensor being connected with signal acquisition module, the evaporator temperature sensor being connected with signal acquisition module;
What as another embodiment, provide is a kind of perfect; the invention provides a kind of temperature controller with communication function; described output control module comprises the break-make of controlling the start-stop of compressor, the start-stop of controlling defroster, the start-stop of controlling blower fan, control solenoid valve; multiple output is controlled can effectively protect compressor, freezer, increases the service life.
What as another embodiment, provide is a kind of perfect, the invention provides a kind of band communication function temperature controller, this controller comprises: microprocessor module, the communication module being connected with microprocessor, the key-press module being connected with microprocessor, the LED charactron display module being connected with microprocessor, the real-time clock module being connected with microprocessor, the output being connected with microprocessor is controlled, alarm output module, the signal acquisition module being connected with microprocessor, the storehouse temperature sensor of the measurement storehouse temperature being connected with signal acquisition module, the evaporator temperature sensor of the measurement evaporator temperature being connected with signal acquisition module.
The invention has the beneficial effects as follows: can be when temperature is controlled in normal measurement, the data of controller collection and current output state information are sent to host computer (being called again " control and management computing machine "), for supervisory control comuter, manage concentratedly, improve the automatization level of field control; Meanwhile, increase solenoid control, can effectively protect compressor and freezer; Increase the service life.
As shown in Figure 1, a kind of band communication function temperature controller is comprised of microprocessor module, communication module, key-press module, LED charactron display module, real-time clock module, control, alarm output module, temperature signal collection module.Microprocessor, as the core of controller, is carried out for the treatment of all programs; Communication module carries out real-time Communication for Power by communication chip and host computer; Key-press module carries out the adjustment that arranges of parameter; LED charactron display module is for display controller duty and Warning Mark; Real-time clock module provides clock for controller, is convenient to the control for real-time time; Control, alarm output module are for controlling the unlatching of compressor, defroster, solenoid valve, alarm and stopping; Signal acquisition module adopts in thermistor Real-time Collection storehouse and evaporator surface temperature.
As shown in Figure 2, in the present embodiment, communication module, by communication chip and host computer group-net communication, realizes real-time monitoring and the output at freezer scene and carries out; This programme adopts RS485 communication mode, adopts ModBus-RTU agreement, adopts the communication modes of " inquiry---response ", and namely host computer sends order, and controller is made corresponding operation according to command code after receiving order; By networking, a supervisory control comuter can connect many controllers (for example, N < 256) and connect, and has realized robotization centralized management and has controlled.
Compressor is as shown in Figure 3-4 opened protection process flow diagram, by temperature controller software, processes, and reaches the object of protection compressor; Specific as follows: when refrigeration system need to start, compressor first starts, adjustable through 3S() rear electromagnetic valve adhesive, because system is in low-pressure state, compressor easily starts, and effectively prevents liquid hammer; Because compressor is light load, start, so by the impact greatly reducing electrical network and ac contactor contact, prevent contact adhesion, extend the related device life-span.When refrigeration system quits work, first turn-off solenoid valve, cut off refrigerant loop, compressor remains in operation, system pressure reduces, adjustable through 10S() after, compressor cuts out.
For solving the problems of the technologies described above, the invention provides a kind of temperature controller with communication function, comprising: microprocessor module; Signal acquisition module, it is connected to described microprocessor module; And communication module, it is connected to described microprocessor module.
What as another embodiment, provide is a kind of perfect, also comprises: key-press module, and it is connected to described microprocessor module; Display module, it is connected to described microprocessor module; Real-time clock module, it is connected to described microprocessor module; And control output module, it is connected to described microprocessor module, and connects compressor, defroster, blower fan, solenoid valve; And alarm output module, it is connected to described microprocessor module.
What as another embodiment, provide is a kind of perfect, and described output control module comprises: multiple output control switch, is connected to compressor, defroster, blower fan, solenoid valve.
What as another embodiment, provide is a kind of perfect, and described signal acquisition module comprises: storehouse temperature sensor and evaporator temperature sensor.
What as another embodiment, provide is a kind of perfect, and described signal acquisition module comprises: thermistor, is used in Real-time Collection storehouse and evaporator surface temperature.
What as another embodiment, provide is a kind of perfect, and described communication module comprises: RS485 communication chip, signal isolation optocoupler and DC-DC isolated from power chip.
What as another embodiment, provide is a kind of perfect, and described communication module comprises: ModBus-RTU agreement.
What as another embodiment, provide is a kind of perfect, and described communication module adopts the communication mode of " inquiry-response ".
For solving the problems of the technologies described above, the present invention also provides temperature-controlled process, comprising: when refrigeration system need to start, compressor first starts, after first schedule time, and solenoid valve adhesive; And
When refrigeration system quits work, first turn-off solenoid valve, cut off refrigerant loop, compressor remains in operation, and system pressure reduces, and after second schedule time, compressor cuts out.
What as another embodiment, provide is a kind of perfect, and described first schedule time is 3 seconds; And described second schedule time is 10 seconds.
Device of the present invention is not limited to the embodiment described in embodiment, so long as those skilled in the art's technical scheme according to the present invention draws other embodiment, belongs to equally the scope of technological innovation of the present invention and protection.
Claims (10)
1. a temperature controller with communication function, is characterized in that, comprising:
Microprocessor module;
Signal acquisition module, it is connected to described microprocessor module; And
Communication module, it is connected to described microprocessor module.
2. temperature controller as claimed in claim 1, is characterized in that: also comprise:
Key-press module, it is connected to described microprocessor module;
Display module, it is connected to described microprocessor module;
Real-time clock module, it is connected to described microprocessor module; And
Control output module, it is connected to described microprocessor module, and connects compressor, defroster, blower fan, solenoid valve; And
Alarm output module, it is connected to described microprocessor module.
3. temperature controller as claimed in claim 2, is characterized in that: described output control module comprises:
Multiple output control switch, is connected to compressor, defroster, blower fan, solenoid valve.
4. temperature controller as claimed in claim 1, is characterized in that: described signal acquisition module comprises: storehouse temperature sensor and evaporator temperature sensor.
5. temperature controller as claimed in claim 1, is characterized in that: described signal acquisition module comprises: thermistor, is used in Real-time Collection storehouse and evaporator surface temperature.
6. temperature controller as claimed in claim 1, is characterized in that: described communication module comprises: RS485 communication chip, signal isolation optocoupler and DC-DC isolated from power chip.
7. temperature controller as claimed in claim 1, is characterized in that: described communication module comprises: ModBus-RTU agreement.
8. temperature controller as claimed in claim 1, is characterized in that: described communication module adopts the communication mode of " inquiry-response ".
9. a temperature-controlled process that is exclusively used in temperature controller described in claim 1-8, is characterized in that, comprises the steps::
When refrigeration system need to start, compressor first starts, after first schedule time, and solenoid valve adhesive; And
When refrigeration system quits work, first turn-off solenoid valve, cut off refrigerant loop, compressor remains in operation, and system pressure reduces, and after second schedule time, compressor cuts out.
10. temperature-controlled process as claimed in claim 9, is characterized in that:
Described first schedule time is 3 seconds; And
Described second schedule time is 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210288426.2A CN103592971B (en) | 2012-08-14 | 2012-08-14 | A kind of temperature controller and its control method |
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| CN201210288426.2A CN103592971B (en) | 2012-08-14 | 2012-08-14 | A kind of temperature controller and its control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679060A (en) * | 2015-02-10 | 2015-06-03 | 柳州市金旭节能科技有限公司 | Temperature control system for high-power electronic equipment |
| CN105527993A (en) * | 2015-12-16 | 2016-04-27 | 青岛工学院 | Multi-path remote intelligent temperature control device and multi-path remote intelligent temperature control system |
| CN108999623A (en) * | 2018-08-17 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | Wireless pressure sensor for ultra-low power consumption hydraulic prop and ultra-low power consumption realization method thereof |
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| CN1310320A (en) * | 2001-02-28 | 2001-08-29 | 华南理工大学 | Single-bolt dynamic ice breaking and making machine and its ice making method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104679060A (en) * | 2015-02-10 | 2015-06-03 | 柳州市金旭节能科技有限公司 | Temperature control system for high-power electronic equipment |
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| CN108999623A (en) * | 2018-08-17 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | Wireless pressure sensor for ultra-low power consumption hydraulic prop and ultra-low power consumption realization method thereof |
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| CN103592971B (en) | 2017-03-01 |
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Address after: 221116 No. 21, the Pearl River East Road, No. 3 Industrial Park, Xuzhou High tech Industrial Development Zone, Xuzhou, Jiangsu Province Patentee after: JIANGSU JINGCHUANG ELECTRONICS Co.,Ltd. Country or region after: China Address before: No. 1, Mount Huangshan Road, High tech Industrial Development Zone, Xuzhou City, Jiangsu Province, 221116 Patentee before: JIANGSU JINGCHUANG ELECTRONICS Co.,Ltd. Country or region before: China |
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