CN106371475A - Multipath temperature control system developed on the basis of STM32 - Google Patents
Multipath temperature control system developed on the basis of STM32 Download PDFInfo
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- CN106371475A CN106371475A CN201611110376.3A CN201611110376A CN106371475A CN 106371475 A CN106371475 A CN 106371475A CN 201611110376 A CN201611110376 A CN 201611110376A CN 106371475 A CN106371475 A CN 106371475A
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000001629 suppression Effects 0.000 claims description 15
- 230000001052 transient effect Effects 0.000 claims description 15
- 230000005669 field effect Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
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Abstract
The invention discloses a multipath temperature control system developed on the basis of STM32. A temperature signal collection end of a single-chip microcomputer is connected with a multipath temperature sensor interface; a transceiver interface of the single-chip microcomputer is connected with a CAN communication interface via a CAN level converter; an asynchronous transceiver interface of the single-chip microcomputer is connected with an RS232 interface via a level conversion chip; an output control end of the single-chip microcomputer is connected with the input end of a load driving unit, an input interface of a DC 24V power supply is connected with the power input end of the single-chip microcomputer via a 5V power converter and then a 3.3V power converter, the load driving unit is composed of a load power interface, a voltage stabilizing circuit, an MOS ON-OFF control circuit, a current detection sensor circuit and a load input port, and an analog voltage output end of the current detection sensor circuit is connected with an A/D interface of the single-chip microcomputer. The multipath temperature control system has the advantages that abundant interfaces are included, multipath temperature collection and control are realized, and the data processing speed is high.
Description
Technical field
The present invention relates to multi-channel temperature control system, especially relate to the multi-channel temperature control system based on stm32 exploitation.
Background technology
Adopting single-chip microcomputer single channel acquisition controlling, traditional Single chip microcomputer temperature control system institute traditional temperature control system more
The deficiency existing is: single-chip microcomputer processing speed is slow, and port number is limited, and it is impossible to carry out complicated temperature control computing, expanding function is few, leads to
Letter mode is simple.
Content of the invention
Present invention aim at providing a kind of multi-channel temperature control system based on stm32 exploitation.
For achieving the above object, the present invention takes following technical proposals:
Multi-channel temperature control system based on stm32 exploitation of the present invention, including single-chip microcomputer, described Chip Microprocessor Temperature signal is adopted
Collection end is connected with multi way temperature sensor interface；The can transceiver interface of single-chip microcomputer is communicated with can by can level translator
Interface connects；The asynchronism transceiver interface of single-chip microcomputer is connected with rs232 interface by electrical level transferring chip；The output control of single-chip microcomputer
End processed is connected with load drive unit input by photoelectrical coupler；Direct current 24v power input interface passes through 5v Power convert
Device is connected with the power input of single-chip microcomputer through 3.3v power supply changeover device again；Described load drive unit by load power source interface,
Mu balanced circuit, mos ON-OFF control circuit, current detection sensor circuit and load access interface composition；Described current detecting passes
The analog voltage outfan of sensor circuit is connected with the a/d interface of single-chip microcomputer.
Described current detection sensor circuit is made up of current sense transmitter u1；Described mos ON-OFF control circuit is by field
Effect pipe q2 and igbt driver u2 composition；Described mu balanced circuit is by Transient Suppression Diode d1, Zener diode d2 and three poles
Pipe q1 forms；The grid of described field effect transistor q2 is connected with the negative pole of Zener diode d5 respectively, by resistance r5 with described
The outfan of igbt driver u2 connects, and the positive pole of described diode d5 is connected with the earth terminal of igbt driver u2；Field effect
Drain electrode one tunnel of pipe q2 is connected with the circuit-under-test electric current negative pole interface of described current sense transmitter u1, and another road is through resistance
R3, power supply instruction light emitting diode d3 are connected with described load power source interface, the source ground of field effect transistor q2；Current sense
The power input of transmitter u1 is connected with 3.3v DC source and through electric capacity c3 ground connection, the simulation electricity of current sense transmitter u1
Pressure outfan is grounded through electric capacity c4, and the a/d interface of described single-chip microcomputer is connected with the analog voltage outfan of current sense transmitter u1
Connect；The colelctor electrode of described audion q1 is connected with described Transient Suppression Diode d1 positive pole and load power source interface respectively；Three poles
The base stage of pipe q1 is connected with Transient Suppression Diode d1 positive pole through resistance r2, resistance r1, described Transient Suppression Diode d1 negative pole
Ground connection；Emitter stage one tunnel of audion q1 is connected with the power input of igbt driver u2, and another road is through electric capacity c2, electric capacity c1
It is connected with Transient Suppression Diode d1 positive pole, in junction point and the described electric capacity c2 and electric capacity c1 of described resistance r2 and resistance r1
It is connected with Zener diode d2 between junction point.
The invention has the advantages that rich interface, it is capable of multiplex temperature collection and control；Data processing speed is fast, can
Process more complicated temperature control algorithm；Expanding communication feature richness, can enter line number with communication modes such as serial ports, can buses
According to transmission.Load outputs are capable of the wide cut input of loading range, and the control source between 12v to 24v is all achievable；
High power load can be controlled, maximum can control the load current of 10a to export；Realized quick by mos ON-OFF control circuit
Switch is precisely controlled；During load running, by reading the outfan ad_in voltage of current sense transmitter, realize
The state of monitoring load current.
Brief description
Fig. 1 is the circuit principle structure block diagram of the present invention.
Fig. 2 is the circuit theory diagrams of load drive unit described in Fig. 1.
Fig. 3 is the internal processes FB(flow block) of single-chip microcomputer of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated, the present embodiment is being front with technical solution of the present invention
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, 2, the multi-channel temperature control system based on stm32 exploitation of the present invention, including single-chip microcomputer
(stm32103rb), described Chip Microprocessor Temperature signal acquisition terminal is connected with multi way temperature sensor interface；The can transmitting-receiving of single-chip microcomputer
Device interface is connected with can communication interface by can level translator；The asynchronism transceiver interface (uart) of single-chip microcomputer passes through level
Conversion chip (max3232) is connected with rs232 interface；The output control terminal of single-chip microcomputer passes through photoelectrical coupler and drives list with load
Unit 1 input connects；Direct current 24v power input interface passes through 5v power supply changeover device again through 3.3v power supply changeover device and single-chip microcomputer
Power input connects；Described load drive unit 1 is by direct current 12v/24v load power source interface, mu balanced circuit 2, mos switch control
Circuit 3 processed, current detection sensor circuit 4 and load access interface composition；The simulation electricity of described current detection sensor circuit 4
Pressure outfan is connected with the a/d interface of single-chip microcomputer.
As shown in Fig. 2 described current detection sensor circuit is by current sense transmitter u1(acs722llctr) form；
Described mos ON-OFF control circuit is by field effect transistor q2(irfb4410zpbf) and igbt driver u2(tlp351) form；Described
Mu balanced circuit is by Transient Suppression Diode d1(sm6t33ca), Zener diode d2 and audion q1 forms；Described field effect transistor
The grid of q2 is connected with the negative pole of Zener diode d5 respectively, is connected by the outfan of resistance r5 and described igbt driver u2
Connect, the positive pole of described diode d5 is connected with the earth terminal of igbt driver u2；Drain electrode one tunnel of field effect transistor q2 and described electricity
The circuit-under-test electric current negative pole interface of stream sensing transducer u1 is connected, and another road is through resistance r3, power supply instruction light emitting diode
D3 is connected with described direct current 12v/24v load power source interface, the source ground of field effect transistor q2；Current sense transmitter u1's
Power input is connected with 3.3v DC source and through electric capacity c3 ground connection, the analog voltage outfan warp of current sense transmitter u1
Electric capacity c4 is grounded, and the a/d interface of described single-chip microcomputer is connected with the analog voltage outfan of current sense transmitter u1；Described three poles
The colelctor electrode of pipe q1 is connected with described Transient Suppression Diode d1 positive pole and direct current 12v/24v load power source interface respectively；Three poles
The base stage of pipe q1 is connected with Transient Suppression Diode d1 positive pole through resistance r2, resistance r1, described Transient Suppression Diode d1 negative pole
Ground connection；Emitter stage one tunnel of audion q1 is connected with the power input of igbt driver u2, and another road is through electric capacity c2, electric capacity c1
It is connected with Transient Suppression Diode d1 positive pole, in junction point and the described electric capacity c2 and electric capacity c1 of described resistance r2 and resistance r1
It is connected with Zener diode d2 between junction point.
Operation principle of the present invention is summarized as follows:
As shown in figure 1, reading the temperature data that 11 road temperature sensor interfaces are transmitted；Internal in single-chip microcomputer (stm32), will read
Take temperature value to be compared with target temperature value, by algorithm, determine the size of load output adjustable duty cycle；By light thermocouple
Clutch exports to mos ON-OFF control circuit 3, is finally loaded into load end；It is loaded with after electric current flows through, then pass through current sense
Transmitter u1 is converted to voltage signal, changes out the size of load current by the a/d port input of single-chip microcomputer (stm32), from
And judge whether loaded work piece is normal；The number of the corresponding load of the target temperature of whole system, sensor can be according to actual need
Ask, flexible configuration.
Claims (2)
1. a kind of multi-channel temperature control system based on stm32 exploitation it is characterised in that: include single-chip microcomputer, described single-chip microcomputer temperature
Degree signal acquisition terminal is connected with multi way temperature sensor interface；The can transceiver interface of single-chip microcomputer pass through can level translator with
Can communication interface connects；The asynchronism transceiver interface of single-chip microcomputer is connected with rs232 interface by electrical level transferring chip；Single-chip microcomputer
Output control terminal be connected with load drive unit input by photoelectrical coupler；Direct current 24v power input interface passes through 5v
Power supply changeover device is connected with the power input of single-chip microcomputer through 3.3v power supply changeover device again；Described load drive unit is by loading electricity
Source interface, mu balanced circuit, mos ON-OFF control circuit, current detection sensor circuit and load access interface composition；Described electric current
The analog voltage outfan of detection sensor circuit is connected with the a/d interface of single-chip microcomputer.
2. according to claim 1 the multi-channel temperature control system based on stm32 exploitation it is characterised in that: the inspection of described electric current
Survey sensor circuit to be made up of current sense transmitter u1；Described mos ON-OFF control circuit is driven by field effect transistor q2 and igbt
Device u2 forms；Described mu balanced circuit is made up of Transient Suppression Diode d1, Zener diode d2 and audion q1；Described field effect
The grid of pipe q2 is connected with the negative pole of Zener diode d5 respectively, is connected by the outfan of resistance r5 and described igbt driver u2
Connect, the positive pole of described diode d5 is connected with the earth terminal of igbt driver u2；Drain electrode one tunnel of field effect transistor q2 and described electricity
The circuit-under-test electric current negative pole interface of stream sensing transducer u1 is connected, and another road is through resistance r3, power supply instruction light emitting diode
D3 is connected with described load power source interface, the source ground of field effect transistor q2；The power input of current sense transmitter u1
It is connected with 3.3v DC source and through electric capacity c3 ground connection, the analog voltage outfan of current sense transmitter u1 connects through electric capacity c4
Ground, the a/d interface of described single-chip microcomputer is connected with the analog voltage outfan of current sense transmitter u1；The collection of described audion q1
Electrode is connected with described Transient Suppression Diode d1 positive pole and load power source interface respectively；The base stage of audion q1 through resistance r2,
Resistance r1 is connected with Transient Suppression Diode d1 positive pole, described Transient Suppression Diode d1 minus earth；The transmitting of audion q1
Pole one tunnel is connected with the power input of igbt driver u2, and another road is through electric capacity c2, electric capacity c1 and Transient Suppression Diode d1
Positive pole connects, and is connected with steady between the junction point and described electric capacity c2 and the junction point of electric capacity c1 of described resistance r2 and resistance r1
Pressure diode d2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110376.3A CN106371475B (en) | 2016-12-06 | 2016-12-06 | Multi-channel temperature control system based on STM32 exploitations |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110376.3A CN106371475B (en) | 2016-12-06 | 2016-12-06 | Multi-channel temperature control system based on STM32 exploitations |
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| CN106371475A true CN106371475A (en) | 2017-02-01 |
| CN106371475B CN106371475B (en) | 2018-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107653187A (en) * | 2017-11-07 | 2018-02-02 | 安图实验仪器(郑州)有限公司 | Random pcr system |
| CN110926626A (en) * | 2019-12-10 | 2020-03-27 | 南京沁恒微电子股份有限公司 | Temperature acquisition unit chip and temperature acquisition system |
| CN111614255A (en) * | 2020-04-29 | 2020-09-01 | 南宁学院 | A portable voltage converter |
| CN115389438A (en) * | 2022-10-26 | 2022-11-25 | 杭州泽天春来科技有限公司 | Spectrum appearance |
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| CN104895747A (en) * | 2015-04-14 | 2015-09-09 | 华北电力大学 | Multi-channel motor set vibration data collecting system based on STM |
| CN105676751A (en) * | 2016-03-31 | 2016-06-15 | 西南交通大学 | Multi-channel universal data acquisition device |
| CN105785158A (en) * | 2015-02-25 | 2016-07-20 | 徐光梅 | Automatic measuring device for electrical devices and measuring method thereof |
| US20170003337A1 (en) * | 2015-06-30 | 2017-01-05 | Renesas Electronics Corporation | Semiconductor device and fault detecting method |
| CN206209430U (en) * | 2016-12-06 | 2017-05-31 | 安图实验仪器(郑州)有限公司 | Multi-channel temperature control system based on STM32 exploitations |
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| CN105785158A (en) * | 2015-02-25 | 2016-07-20 | 徐光梅 | Automatic measuring device for electrical devices and measuring method thereof |
| CN104895747A (en) * | 2015-04-14 | 2015-09-09 | 华北电力大学 | Multi-channel motor set vibration data collecting system based on STM |
| US20170003337A1 (en) * | 2015-06-30 | 2017-01-05 | Renesas Electronics Corporation | Semiconductor device and fault detecting method |
| CN105676751A (en) * | 2016-03-31 | 2016-06-15 | 西南交通大学 | Multi-channel universal data acquisition device |
| CN206209430U (en) * | 2016-12-06 | 2017-05-31 | 安图实验仪器(郑州)有限公司 | Multi-channel temperature control system based on STM32 exploitations |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107653187A (en) * | 2017-11-07 | 2018-02-02 | 安图实验仪器(郑州)有限公司 | Random pcr system |
| CN110926626A (en) * | 2019-12-10 | 2020-03-27 | 南京沁恒微电子股份有限公司 | Temperature acquisition unit chip and temperature acquisition system |
| CN111614255A (en) * | 2020-04-29 | 2020-09-01 | 南宁学院 | A portable voltage converter |
| CN115389438A (en) * | 2022-10-26 | 2022-11-25 | 杭州泽天春来科技有限公司 | Spectrum appearance |
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| Publication number | Publication date |
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| CN106371475B (en) | 2018-05-08 |
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