CN203250186U - Full-digital central heating system control device - Google Patents
Full-digital central heating system control device Download PDFInfo
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- CN203250186U CN203250186U CN2013200987993U CN201320098799U CN203250186U CN 203250186 U CN203250186 U CN 203250186U CN 2013200987993 U CN2013200987993 U CN 2013200987993U CN 201320098799 U CN201320098799 U CN 201320098799U CN 203250186 U CN203250186 U CN 203250186U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
A full-digital central heating system control device comprises a dsPIC6010A circuit, an analog quantity input module, an analog quantity output module, a switching value input module, a switching value output module, an RS-485 communication module and a CAN bus module. The input end of the dsPIC6010A circuit is connected with the input interface of the analog quantity input module and the input interface of the switching value input module separately, and the output end is connected with the output interfaces of the analog quantity output module and the switching value output module separately. The dsPIC6010A circuit is in bidirectional connection with the RS-485 communication module and the CAN bus module separately. The full-digital central heating system control device of the utility model takes the dsPIC6010A circuit as a control core, realizes the expansion functions of analog quantity acquisition, analog quantity output, switching value input, switching value output, the communication with a touch screen and an upper computer, and the communication with a daughter board, and enables the cost of system constitution to be reduced.
Description
Technical field
The utility model belongs to automatic control system, particularly a kind of digital central heating system control device.
Background technology
Along with urban construction and economic develop rapidly; environmental protection and energy conservation become more and more important problem; China's atmosphere quality in winter is directly related with heat-supplying mode; the central heating mode improves a kind of feasible solution of air quality just; so concentrated supply of heating in the city also becomes the city; especially how the trend of the times of North City heat supply makes whole central heating system be in good, an efficient running status, becomes the problem needing to overcome for thermal control system institute.
Summary of the invention
The purpose of this utility model provides a kind of digital central heating system control device, this device is take the dsPIC6010A circuit as control core, the expanded function that has realized analog acquisition, analog output, switching value input, switching value output, communicated by letter and communicate by letter with daughter board with host computer with touch-screen, and reduced the cost of system's formation.
As above design, the technical solution of the utility model is: a kind of digital central heating system control device is characterized in that: comprise dsPIC6010A circuit, analog input module, analog output module, switching input module, switching value output module, RS-485 communication module and CAN bus module; The input end of dsPIC6010A circuit is the input interface of connecting analog amount load module and the input interface of switching input module respectively, and the output terminal of dsPIC6010A circuit respectively connecting analog amount output module is connected output interface, dsPIC6010A circuit and is connected with the CAN bus module with the RS-485 communication module respectively and is connected with switching value output module; The input interface of above-mentioned switching input module connects respectively local control and selects circuit, Long-distance Control to select circuit, a plurality of primary side motor start circuit, a plurality of secondary side motor start circuit, a plurality of small pump motor start circuit, a plurality of primary side motor relay circuit, a plurality of secondary side motor relay circuit, a plurality of moisturizing motor relay circuit, ebullator frequency conversion faulty circuit, secondary cycle pump frequency conversion faulty circuit and a small pump frequency conversion faulty circuit; The output interface of above-mentioned switching input module connects respectively a plurality of primary side motor starting or stopping control circuits, a plurality of secondary side motor starting or stopping control circuit, a plurality of small pump motor starting or stopping control circuit and electromagnetic valve switch control circuit; The input interface of above-mentioned analog input module connects multiple sensor and gathers multi-analog; The output interface of above-mentioned analog output module connects primary side frequency converter frequency output circuit, secondary side frequency converter frequency output circuit and moisturizing frequency converter frequency output circuit.
Above-mentioned switching input module arranges 17 way switch amount input interfaces, and they connect respectively local control and select circuit, Long-distance Control to select circuit, two primary side motor start circuits, two secondary side motor start circuits, two small pump motor start circuits, two primary side motor relay circuit, two secondary side motor relay circuit, two moisturizing motor relay circuit, ebullator frequency conversion faulty circuit, secondary cycle pump frequency conversion faulty circuit and a small pump frequency conversion faulty circuit.
Above-mentioned switching value output module arranges No. 7 high power relay output interfaces, and they connect respectively two primary side motor starting or stopping control circuits, two secondary side motor starting or stopping control circuits, two small pump motor starting or stopping control circuits and electromagnetic valve switch control circuit.
The input interface of above-mentioned analog input module gathers 18 tunnel analog quantitys, and input interface connects respectively primary side pressure of supply water sensor, primary side pressure of return water sensor, primary side supply water temperature sensor, primary side return water temperature sensor, primary side frequency converter frequency sensor, the primary side flow sensor, secondary side pressure of supply water sensor, secondary side pressure of return water sensor, secondary side supply water temperature sensor, secondary side return water temperature sensor, secondary side frequency converter frequency sensor, the secondary side flow sensor, moisturizing frequency converter frequency sensor and outdoor temperature sensor.
Above-mentioned analog output module is connected to form by photoelectric isolating circuit, MAX538 and AD694, realizes analog quantity 4-20mA output function.
The input interface of above-mentioned analog input module adopts the AD Sampling Interface, utilizes AD627 to realize analog quantity 4-20mA acquisition function.
The output interface of above-mentioned switching value output module is comprised of photoelectric isolating circuit, and this circuit comprises photoelectrical coupler and transistor.
The input interface of above-mentioned switching input module is comprised of photoelectric isolating circuit.
Above-mentioned RS-485 communication module connects touch-screen and host computer.
Above-mentioned CAN bus module connects the daughter board of a plurality of expanded functions.
The utlity model has following advantage and good effect:
1, the utility model can be controlled two cover heat exchanger groups simultaneously, adopts modular organization can expand at any time control unit quantity, and maximum can be controlled 16 units simultaneously.
2, the utility model can gather 18 tunnel analog quantitys simultaneously, comprising: the information such as primary side pressure, flow and temperature; The information such as secondary side pressure, flow and temperature; Outdoor temperature and frequency converter frequency information etc.
3, the utility model provides three tunnel analog quantitys (4-20mA) output, for the control frequency converter provides good interface.
4, the utility model provides 17 way switch amount input interfaces, and No. 7 high power relay output interfaces are provided.
5, the utility model provides two-way independence RS-485 interface, and the MODBUS-RTU agreement of standard is provided, and can connect simultaneously touch-screen and host computer, provides total solution for setting up supervisory system.
6, provide the CANBUS interface between the utility model and the daughter board, be convenient to the expansion of system.
7, switching value input of the present utility model, output module all adopt the photoelectricity isolation, have improved reliability and the anti-interference of system.
8, the utility model has changed the architecture mode of original control device take PLC as control core take dsPIC6010A as control core, has reduced the cost that system consists of.
9, the utility model employing dsPIC6010A is main control chip, and employing dsPIC3011 is auxiliary control chip.
Description of drawings
Fig. 1 is digital central heating system control device structural drawing.
Fig. 2 is control device MCU module map.
Fig. 3 is the auxiliary control module figure of device.
Fig. 4 is CAN bus interface module figure.
Fig. 5 is AD output module figure (frequency converter frequency output control module).
Fig. 6 is AD sampling interface circuit figure.
Fig. 7 is switching value output interface module figure.
Fig. 8 is switch value input interface module-1 figure.
Fig. 9 is switch value input interface module-2 figure.
Figure 10 is RS-485 interface module figure.
Figure 11 is AD sampling reference power supply module map.
Embodiment
As shown in Figure 1, 2, 3: a kind of digital central heating system control device, take the dsPIC6010A circuit as control core, and employing dsPIC3011 is auxiliary control chip.DsPIC6010A is connecting analog amount load module, analog output module, switching input module, switching value output module, RS-485 communication module and CAN bus module respectively.The input end of dsPIC6010A circuit is the input interface of connecting analog amount load module and the input interface of switching input module respectively, and the output terminal of dsPIC6010A circuit respectively connecting analog amount output module is connected output interface, dsPIC6010A circuit and is connected with the CAN bus module with the RS-485 communication module respectively and is connected with switching value output module.
Described switching input module arranges 17 way switch amount input interfaces, and they connect respectively local control and select circuit, Long-distance Control to select circuit, two primary side motor start circuits, two secondary side motor start circuits, two small pump motor start circuits, two primary side motor relay circuit, two secondary side motor relay circuit, two moisturizing motor relay circuit, ebullator frequency conversion faulty circuit, secondary cycle pump frequency conversion faulty circuit and a small pump frequency conversion faulty circuit.
Described switching value output module arranges No. 7 high power relay output interfaces, and they connect respectively two primary side motor starting or stopping control circuits, two secondary side motor starting or stopping control circuits, two small pump motor starting or stopping control circuits and electromagnetic valve switch control circuit.
The input interface of described analog input module gathers 18 tunnel analog quantitys, and input interface connects respectively primary side pressure of supply water sensor, primary side pressure of return water sensor, primary side supply water temperature sensor, primary side return water temperature sensor, primary side frequency converter frequency sensor, the primary side flow sensor, secondary side pressure of supply water sensor, secondary side pressure of return water sensor, secondary side supply water temperature sensor, secondary side return water temperature sensor, secondary side frequency converter frequency sensor, the secondary side flow sensor, moisturizing frequency converter frequency sensor and outdoor temperature sensor.
Described RS-485 communication module connects touch-screen and host computer.(as shown in figure 10)
Described CAN bus module connects the daughter board of a plurality of expanded functions.(as shown in Figure 4)
Be illustrated in figure 2 as the schematic diagram of dsPIC6010A circuit.
Be illustrated in figure 3 as the schematic diagram of auxiliary control chip dsPIC3011.
As shown in Figure 5: described analog output module is connected to form by photoelectric isolating circuit, MAX538 and AD694, realizes analog quantity 4-20mA output function.
As shown in Figure 6: described analog input module adopts AD627 to realize analog quantity 4-20mA acquisition function.
As shown in Figure 7: the output interface of described switching value output module is comprised of photoelectric isolating circuit, and this circuit comprises photoelectrical coupler and transistor.Wherein photoelectrical coupler is realized the effect of isolation, and has realized level conversion.Transistor has strengthened driving force, to drive relay output.
Shown in Fig. 8,9: as described in the input interface of switching input module formed by photoelectric isolating circuit, wherein photoelectrical coupler is realized the effect of isolation, and has realized level conversion, can reduce the external interference signal to the impact of system works.
Figure 11 is AD sampling reference power supply module.
The utility model is take dsPIC6010A as control core, the expanded function of realize that analog acquisition, analog output, switching value are inputted, switching value is exported, communicating by letter and communicating by letter with daughter board with touch-screen with host computer etc., change the architecture mode of original control device take PLC as control core, reduced the cost that system consists of.
Claims (10)
1. a digital central heating system control device is characterized in that: comprise dsPIC6010A circuit, analog input module, analog output module, switching input module, switching value output module, RS-485 communication module and CAN bus module; The input end of dsPIC6010A circuit is the input interface of connecting analog amount load module and the input interface of switching input module respectively, and the output terminal of dsPIC6010A circuit respectively connecting analog amount output module is connected output interface, dsPIC6010A circuit and is connected with the CAN bus module with the RS-485 communication module respectively and is connected with switching value output module; The input interface of above-mentioned switching input module connects respectively local control and selects circuit, Long-distance Control to select circuit, a plurality of primary side motor start circuit, a plurality of secondary side motor start circuit, a plurality of small pump motor start circuit, a plurality of primary side motor relay circuit, a plurality of secondary side motor relay circuit, a plurality of moisturizing motor relay circuit, ebullator frequency conversion faulty circuit, secondary cycle pump frequency conversion faulty circuit and a small pump frequency conversion faulty circuit; The output interface of above-mentioned switching input module connects respectively a plurality of primary side motor starting or stopping control circuits, a plurality of secondary side motor starting or stopping control circuit, a plurality of small pump motor starting or stopping control circuit and electromagnetic valve switch control circuit; The input interface of above-mentioned analog input module connects multiple sensor and gathers multi-analog; The output interface of above-mentioned analog output module connects primary side frequency converter frequency output circuit, secondary side frequency converter frequency output circuit and moisturizing frequency converter frequency output circuit.
2. a kind of digital central heating system control device according to claim 1, it is characterized in that: above-mentioned switching input module arranges 17 way switch amount input interfaces, and they connect respectively local control and select circuit, Long-distance Control is selected circuit, two primary side motor start circuits, two secondary side motor start circuits, two small pump motor start circuits, two primary side motor relay circuit, two secondary side motor relay circuit, two moisturizing motor relay circuit, an ebullator frequency conversion faulty circuit, secondary cycle pump frequency conversion faulty circuit and small pump frequency conversion faulty circuit.
3. a kind of digital central heating system control device according to claim 1, it is characterized in that: above-mentioned switching value output module arranges No. 7 high power relay output interfaces, and they connect respectively two primary side motor starting or stopping control circuits, two secondary side motor starting or stopping control circuits, two small pump motor starting or stopping control circuits and electromagnetic valve switch control circuit.
4. a kind of digital central heating system control device according to claim 1, it is characterized in that: the input interface of above-mentioned analog input module gathers 18 tunnel analog quantitys, and input interface connects respectively primary side pressure of supply water sensor, primary side pressure of return water sensor, primary side supply water temperature sensor, primary side return water temperature sensor, primary side frequency converter frequency sensor, the primary side flow sensor, secondary side pressure of supply water sensor, secondary side pressure of return water sensor, secondary side supply water temperature sensor, secondary side return water temperature sensor, secondary side frequency converter frequency sensor, the secondary side flow sensor, moisturizing frequency converter frequency sensor and outdoor temperature sensor.
5. a kind of digital central heating system control device according to claim 1, it is characterized in that: above-mentioned analog output module is connected to form by photoelectric isolating circuit, MAX538 and AD694, realizes analog quantity 4-20mA output function.
6. according to claim 1 or 4 described a kind of digital central heating system control device, it is characterized in that: the input interface of above-mentioned analog input module adopts the AD Sampling Interface, utilizes AD627 to realize analog quantity 4-20mA acquisition function.
7. a kind of digital central heating system control device according to claim 1, it is characterized in that: the output interface of above-mentioned switching value output module is comprised of photoelectric isolating circuit, and this circuit comprises photoelectrical coupler and transistor.
8. a kind of digital central heating system control device according to claim 1, it is characterized in that: the input interface of above-mentioned switching input module is comprised of photoelectric isolating circuit.
9. a kind of digital central heating system control device according to claim 1 is characterized in that: above-mentioned RS-485 communication module connection touch-screen and host computer.
10. a kind of digital central heating system control device according to claim 1, it is characterized in that: above-mentioned CAN bus module connects the daughter board of a plurality of expanded functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200987993U CN203250186U (en) | 2013-03-05 | 2013-03-05 | Full-digital central heating system control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200987993U CN203250186U (en) | 2013-03-05 | 2013-03-05 | Full-digital central heating system control device |
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| CN203250186U true CN203250186U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200987993U Expired - Fee Related CN203250186U (en) | 2013-03-05 | 2013-03-05 | Full-digital central heating system control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197624A (en) * | 2013-03-05 | 2013-07-10 | 天津城市建设学院 | Central heating system controller based on digital signal processor (DSP) |
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2013
- 2013-03-05 CN CN2013200987993U patent/CN203250186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197624A (en) * | 2013-03-05 | 2013-07-10 | 天津城市建设学院 | Central heating system controller based on digital signal processor (DSP) |
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| 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: 20131023 Termination date: 20140305 |