CN207096848U - A kind of temperature measurement and control instrument based on ARM - Google Patents
A kind of temperature measurement and control instrument based on ARM Download PDFInfo
- Publication number
- CN207096848U CN207096848U CN201720406319.3U CN201720406319U CN207096848U CN 207096848 U CN207096848 U CN 207096848U CN 201720406319 U CN201720406319 U CN 201720406319U CN 207096848 U CN207096848 U CN 207096848U
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- temperature
- arm
- chips
- sensing circuit
- converter
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- Control Of Temperature (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of temperature measurement and control instrument based on ARM, including PC, ARM chips, D/A converter, executing agency, thermostat, temperature sensor and temperature sensing circuit；The PC, the D/A converter, the temperature sensing circuit are all connected with the ARM chips；The executing agency and temperature sensor are all connected with the thermostat；The executing agency is connected with D/A converter；The temperature sensor is all connected with the temperature sensing circuit.Temperature measurement and control instrument provided by the utility model, temperature control is accurate, simple in construction, and processor has low-power consumption, low cost, high-performance.
Description
Technical field
It the utility model is related to a kind of temperature measurement and control instrument, and in particular to a kind of temperature control system based on ARM, category
In measurement and control area.
Background technology
The temperature control product being molded in the market is all generally realized using traditional PLC and single-chip microcomputer, disclosure satisfy that
The needs of the most of occasions of user.With microelectronics and embedded technology fast development and Theory of Automatic Control it is continuous complete
Kind, industrial temperature control requires also more and more higher.Present lot of domestic and international temperature control system all using ARM as processor,
ARM provides an effective solution for Embedded application, with its ripe result standard, effective 32 RISC knots
Structure, outstanding code density, possible low cost, the features such as highly stable is performed, is approved by market.Using embedded hardware
There is very high measurement accuracy and control accuracy with the temperature control system of software, and real-time is good, can carry out more complicated
Algorithm computing, volume also greatly reduce, and have the man-machine interface of very hommization.As can be seen here, with the development of information industry,
New technology is reformed and the development of the specialized modernization of industry, utilizes high performance embeded processor and embedded behaviour in real time
Make system and the trend for turning into future development is controlled to temperature.The existing temperature measurement and control instrument based on ARM is complicated,
Energy consumption is big, and cost is higher.
Utility model content
To solve problem above, the utility model provides a kind of temperature measurement and control instrument based on ARM, including PC, ARM cores
Piece, D/A converter, executing agency, thermostat, temperature sensor and temperature sensing circuit；The PC, D/A conversions
Device, the temperature sensing circuit are all connected with the ARM chips；The executing agency and temperature sensor all fill with the constant temperature
Put connection；The executing agency is connected with D/A converter；The temperature sensor is all connected with the temperature sensing circuit.
Further, the ARM uses AT91RM9200 chips；The chip of the temperature sensing circuit, which uses, includes K
The MAX6675 chips of type thermocouple；The D/A converter uses DAC712 chips.
A kind of temperature measurement and control instrument based on ARM provided by the utility model, using AT91RM9200 chips, the chip energy
Enough operations that worked in the environment of high temperature hostile, peripheral hardware meet industrial standard；Using the MAX6675 chips with K-type thermocouple, this
Integrated chip analog signal amplifier, cold junction compensation signal generating circuit, nonlinearity correction circuit, break detection circuit, A/D
The thermocouple signal amplifier and digital quantizer of converter and SPI serial digital control circuits, it is powerful, electricity can be simplified
Line structure；Using K-type electroheat pair, temperature can be accurately transmitted, the degree of accuracy is high；Using DAC712 chips, DAC712 is a height
16 parallel-by-bit double buffering D/A converters of effect, ± 10V voltage output, and the reference voltage accurate temperature compensation with+10V
With 16 data latches of the two poles of the earth buffering.Digital interface is a quick, 60ns minimum write pulse width, when simulation is believed
Number output reset when have removing function.Temperature measurement and control instrument provided by the utility model, temperature control is accurate, simple in construction, place
Reason utensil has low-power consumption, low cost, high-performance.
Brief description of the drawings
Fig. 1 is the structural representation of temperature measurement and control instrument provided by the utility model.
Fig. 2 is that the temperature of temperature measurement and control instrument provided by the utility model surveys detection principle diagram.
Fig. 3 is the D/A transfer principle figures of temperature measurement and control instrument provided by the utility model.
Embodiment
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, a kind of temperature measurement and control instrument based on ARM provided by the utility model, including PC
10th, ARM chips 20, D/A converter 30, executing agency 40, thermostat 50, temperature sensor 60 and temperature sensing circuit 70；
The PC 10, the D/A converter 30, the temperature sensing circuit 70 are all connected with the ARM chips 20；The execution machine
Structure 40 and temperature sensor 60 are all connected with the thermostat 50；The executing agency 40 is connected with D/A converter 30；Institute
Temperature sensor 60 is stated all to be connected with the temperature sensing circuit 70.
Further, the ARM chips 20 use AT91RM9200 chips；The chip of the temperature sensing circuit 70 is adopted
With the MAX6675 chips including K-type thermocouple 71；The D/A converter 30 uses DAC712 chips.
When in use, the temperature signal of the thermostat 50 is sent to the temperature by the temperature sensor 60
On the K-type thermocouple 71 for detecting circuit 70, the temperature signal that the K-type thermocouple 71 receives passes through the MAX6675 chips
Processing after obtained data signal be sent in the ARM chips 20, the process control algolithm of the ARM chips 20 is controlled
Signal processed, and control signal is sent to the executing agency 40, the executing agency 40 by the D/A converter 30
The thermostat 50 is controlled according to the signal received.The PC 10 and the ARM chips 20 can mutually transfer signal, people
Current temperature signal can be observed by PC 10, and be transferred the instructions to by the PC 10 in the ARM chips, it is real
Referring now to the control of thermostat 50.
The utility model preferred embodiment is these are only, therefore the scope of the utility model implementation can not be limited according to this, i.e.,
The equivalence changes and decoration made according to the utility model description, it should all belong in the range of the utility model covering.
Claims (2)
- A kind of 1. temperature measurement and control instrument based on ARM, it is characterised in that：Including PC, ARM chips, D/A converter, execution machine Structure, thermostat, temperature sensor and temperature sensing circuit；The PC, the D/A converter, the temperature sensing circuit All it is connected with the ARM chips；The executing agency and temperature sensor are all connected with the thermostat；The executing agency It is connected with D/A converter；The temperature sensor is all connected with the temperature sensing circuit.
- A kind of 2. temperature measurement and control instrument based on ARM as claimed in claim 1, it is characterised in that：The ARM is used AT91RM9200 chips；The chip of the temperature sensing circuit uses the MAX6675 chips for including K-type thermocouple；The D/A turns Parallel operation uses DAC712 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720406319.3U CN207096848U (en) | 2017-04-18 | 2017-04-18 | A kind of temperature measurement and control instrument based on ARM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720406319.3U CN207096848U (en) | 2017-04-18 | 2017-04-18 | A kind of temperature measurement and control instrument based on ARM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096848U true CN207096848U (en) | 2018-03-13 |
Family
ID=61550350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720406319.3U Expired - Fee Related CN207096848U (en) | 2017-04-18 | 2017-04-18 | A kind of temperature measurement and control instrument based on ARM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096848U (en) |
-
2017
- 2017-04-18 CN CN201720406319.3U patent/CN207096848U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20200418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |