CN204462897U - based on the temperature control system of SOPC - Google Patents
based on the temperature control system of SOPC Download PDFInfo
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- CN204462897U CN204462897U CN201520188244.7U CN201520188244U CN204462897U CN 204462897 U CN204462897 U CN 204462897U CN 201520188244 U CN201520188244 U CN 201520188244U CN 204462897 U CN204462897 U CN 204462897U
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- triode
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- temperature control
- temperature
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Abstract
The utility model discloses a kind of temperature control system based on SOPC, comprise microcontroller, temperature detecting unit, driver element, cooling and warming unit and man-machine interaction unit; Described temperature detecting unit is connected with microcontroller, for testing environment temperature; Described driver element is connected between microcontroller and cooling and warming unit, for driving cooling and warming cell operation; Described man-machine interaction unit is connected with microcontroller, for completing setting and the display of temperature.The utility model can accurately control temperature change, can by the display of the environment temperature of collection on a user interface, control mode is simple, can improve Mass Control and automatization level widely, have the advantages such as good economic benefit and promotional value.
Description
Technical field
The utility model relates to automation field, particularly a kind of temperature control system based on SOPC.
Background technology
Along with the fast development of science and technology, every field requires more and more higher to the precision, stability etc. of temperature control system, and control system is also ever-changing.Resistance furnace is widely used in all trades and professions, and its temperature controls usually to adopt analog or digital regulation meter to regulate.
Though producing a desired effect of this mode, but there is various shortcoming, the temperature out of true such as controlled, temperature does not reach requirement, and regulating time is long.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of temperature control system based on SOPC.
The purpose of this utility model is realized by such technical scheme, and a kind of temperature control system based on SOPC, comprises microcontroller, temperature detecting unit, driver element, cooling and warming unit and man-machine interaction unit; Described temperature detecting unit is connected with microcontroller, for testing environment temperature; Described driver element is connected between microcontroller and cooling and warming unit, for driving cooling and warming cell operation; Described man-machine interaction unit is connected with microcontroller, for completing setting and the display of temperature.
Preferably, this temperature control system also comprise telepilot and with telepilot with the use of infrared receiving terminal, described infrared receiving terminal is connected with microcontroller.
Preferably, described man-machine interaction unit comprises key-press module and display module.
Preferably, described driver element comprises PWM chip and switch element, the break-make of described PWM chip gauge tap unit.
Preferably, described driver element also comprises energy-storage units and filter unit, and described energy-storage units is connected between switch element and filter unit, and the electric energy that described filter unit is used for exporting to energy-storage units cooling and warming unit carries out filtering.
Preferably, described switch element is solid-state relay.
Preferably, described switch element is power switch unit, described power switch unit comprises triode Q3 ~ Q4, resistance R4 ~ R5, described energy-storage units is inductance L 1, described filter unit comprises C1 ~ C4, described driver element also comprises triode Q1 ~ Q2, resistance R1 ~ R3, the output terminal of described PWM chip is connected with the base stage of triode Q1, the collector of triode Q1 meets Vcc through resistance R1, the emitter generating resistance R2 ground connection of triode Q1, the emitter of triode Q1 is connected with the base stage of triode Q2, the collector of triode Q2 meets Vcc through resistance R3, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the base stage of triode Q3, the emitter of triode Q3 meets Vcc, the collector of triode Q3 is connected with the base stage of triode Q4, the collector of triode Q4 meets Vcc through resistance R5, the emitter of triode Q4 is through diode D1 ground connection and the plus earth of diode D1, the base stage of triode Q4 is connected with one end of inductance L 1 through resistance R4, another termination capacitor C1 of inductance L 1, C3, electric capacity C1 is through electric capacity C2 ground connection, electric capacity C3 is through electric capacity C4 ground connection.
Owing to have employed technique scheme, the utility model has following advantage:
Not only can carry out temperature control quickly and accurately, and control method is simple, does not need very professional operator just can realize detecting, can data be passed on PC, eliminate the trouble of manual transcription's data.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is the utility model structured flowchart;
Fig. 2 is structure of driving unit block diagram;
Fig. 3 is the physical circuit figure of driver element;
Fig. 4 is the circuit diagram of switch element.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, a kind of temperature control system based on SOPC, comprises microcontroller,
Temperature detecting unit, for testing environment temperature, the data detected are sent to microcontroller, temperature data is delivered on PC by serial ports by described microcontroller;
Driver element, for driving cooling and warming cell operation;
Cooling and warming unit, carries out heating or lowering the temperature for target temperature;
Man-machine interaction unit, for completing setting and the display of temperature.
In the present embodiment, microprocessor adopts EP2C35F672C6, and temperature detecting unit is DS18B20 temperature sensor.
Preferably, described man-machine interaction unit comprises key-press module and display module, and key-press module is for completing the setting of temperature, and display module is for showing the temperature data collected.
Above-mentioned embodiment, the in-plant setting of temperature is completed with key-press module, as another kind of embodiment, this temperature control system also comprise telepilot and with telepilot with the use of infrared receiving terminal, described infrared receiving terminal is connected with microcontroller, and this embodiment has been used for temperature and has set at a distance.
Preferably, described switch element is solid-state relay.As shown in Figure 2, for adopting solid-state relay as the structural drawing of switch element.Wherein 1 is microprocessor, and 2 is solid-state relay, and 3 is power supply, and 4 for heating refrigeration unit, and 21 is solid-state relays of refrigeration control, and 22 is the solid-state relays heating control.
As shown in Figure 3, described driver element comprises PWM chip and switch element, the break-make of described PWM chip gauge tap unit.The present embodiment adopts the accurate control of PWM realization to switch element, thus improves the utilization factor of switch element, decreases the loss of power.
As the improvement to the present embodiment, described driver element also comprises energy-storage units and filter unit, and described energy-storage units is connected between switch element and filter unit, and the electric energy that described filter unit is used for exporting to energy-storage units cooling and warming unit carries out filtering.
Described energy-storage units is for storing the electric energy of described switch element output and exporting electric energy constantly to described heating unit.Because described switch element only has part-time output power in pulse signal one-period, so power switch unit exports electric energy with sectional form, the energy-storage units of the present embodiment store described sectional form electric energy and with the mode exported continuously export electric energy to described in heat refrigeration unit.
In addition the filter unit of the present embodiment is used for carrying out filtering to the electric energy that described energy-storage units exports, thus filtering undesired signal wherein or noise etc., thus obtains pure electric energy and export.
As shown in Figure 4, described switch element is power switch unit, described power switch unit comprises triode Q3 ~ Q4, resistance R4 ~ R5, described energy-storage units is inductance L 1, described filter unit comprises C1 ~ C4, described driver element also comprises triode Q1 ~ Q2, resistance R1 ~ R3, the output terminal of described PWM chip is connected with the base stage of triode Q1, the collector of triode Q1 meets Vcc through resistance R1, the emitter generating resistance R2 ground connection of triode Q1, the emitter of triode Q1 is connected with the base stage of triode Q2, the collector of triode Q2 meets Vcc through resistance R3, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the base stage of triode Q3, the emitter of triode Q3 meets Vcc, the collector of triode Q3 is connected with the base stage of triode Q4, the collector of triode Q4 meets Vcc through resistance R5, the emitter of triode Q4 is through diode D1 ground connection and the plus earth of diode D1, the base stage of triode Q4 is connected with one end of inductance L 1 through resistance R4, another termination capacitor C1 of inductance L 1, C3, electric capacity C1 is through electric capacity C2 ground connection, electric capacity C3 is through electric capacity C4 ground connection.
Described filter unit is made up of electrochemical capacitor C1 ~ C4, thus filtering inductance L 1 exports interference or noise etc. in electric energy.In addition technician can also need according to actual design and require to change the structure of described electrochemical capacitor, such as, be reduced to an electrochemical capacitor etc.And described inductance L 1 and electrochemical capacitor C1 ~ C4 and diode D1 form a chopper circuit jointly, thus achieve the continuous output of electric energy further.
The principle of work of the present embodiment is as follows:
The pulse width that PWM chip U2 exports, after this by triode Q1 and triode Q2 level conversion, thus controls the switch of triode Q3, and described triode Q3 for controlling the switch of described power switch pipe Q4, thus realizes power and exports with sectional form.
Then by inductance L 1 store electrical energy of chopper circuit, then through electrochemical capacitor C1 ~ C4, electric energy is exported continuously to inductance L 1 and carry out filtering, and export to and heat refrigeration unit.
And the sectional electric energy that power switch pipe exports by the energy-storage units of the present embodiment exports in a continuous manner, so when the dutycycle exporting pulse is less, described power switch can be made not open thus saving power within a recurrence interval, decrease the power attenuation of power switch pipe.So improve the utilization factor of output power.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. based on a temperature control system of SOPC, it is characterized in that: comprise microcontroller, temperature detecting unit, driver element, cooling and warming unit and man-machine interaction unit;
Described temperature detecting unit is connected with microcontroller, for testing environment temperature;
Described driver element is connected between microcontroller and cooling and warming unit, for driving cooling and warming cell operation;
Described man-machine interaction unit is connected with microcontroller, for completing setting and the display of temperature.
2. the temperature control system based on SOPC according to claim 1, is characterized in that: this temperature control system also comprise telepilot and with telepilot with the use of infrared receiving terminal, described infrared receiving terminal is connected with microcontroller.
3. the temperature control system based on SOPC according to claim 1, is characterized in that: described man-machine interaction unit comprises key-press module and display module.
4. the temperature control system based on SOPC according to claim 1, is characterized in that: described driver element comprises PWM chip and switch element, the break-make of described PWM chip gauge tap unit.
5. the temperature control system based on SOPC according to claim 4, it is characterized in that: described driver element also comprises energy-storage units and filter unit, described energy-storage units is connected between switch element and filter unit, and the electric energy that described filter unit is used for exporting to energy-storage units cooling and warming unit carries out filtering.
6. the temperature control system based on SOPC according to claim 4, is characterized in that: described switch element is solid-state relay.
7. the temperature control system based on SOPC according to claim 5, it is characterized in that: described switch element is power switch unit, described power switch unit comprises triode Q3 ~ Q4, resistance R4 ~ R5, described energy-storage units is inductance L 1, described filter unit comprises C1 ~ C4, described driver element also comprises triode Q1 ~ Q2, resistance R1 ~ R3, the output terminal of described PWM chip is connected with the base stage of triode Q1, the collector of triode Q1 meets Vcc through resistance R1, the emitter generating resistance R2 ground connection of triode Q1, the emitter of triode Q1 is connected with the base stage of triode Q2, the collector of triode Q2 meets Vcc through resistance R3, the grounded emitter of triode Q2, the collector of triode Q2 is connected with the base stage of triode Q3, the emitter of triode Q3 meets Vcc, the collector of triode Q3 is connected with the base stage of triode Q4, the collector of triode Q4 meets Vcc through resistance R5, the emitter of triode Q4 is through diode D1 ground connection and the plus earth of diode D1, the base stage of triode Q4 is connected with one end of inductance L 1 through resistance R4, another termination capacitor C1 of inductance L 1, C3, electric capacity C1 is through electric capacity C2 ground connection, electric capacity C3 is through electric capacity C4 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188244.7U CN204462897U (en) | 2015-03-31 | 2015-03-31 | based on the temperature control system of SOPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188244.7U CN204462897U (en) | 2015-03-31 | 2015-03-31 | based on the temperature control system of SOPC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204462897U true CN204462897U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520188244.7U Expired - Fee Related CN204462897U (en) | 2015-03-31 | 2015-03-31 | based on the temperature control system of SOPC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204462897U (en) |
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2015
- 2015-03-31 CN CN201520188244.7U patent/CN204462897U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160331 |