CN107764423A - A kind of intelligent multichannel temperature patrol inspection system - Google Patents
A kind of intelligent multichannel temperature patrol inspection system Download PDFInfo
- Publication number
- CN107764423A CN107764423A CN201711116736.5A CN201711116736A CN107764423A CN 107764423 A CN107764423 A CN 107764423A CN 201711116736 A CN201711116736 A CN 201711116736A CN 107764423 A CN107764423 A CN 107764423A
- Authority
- CN
- China
- Prior art keywords
- inspection system
- patrol inspection
- circuit
- temperature patrol
- multichannel temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A kind of intelligent multichannel temperature patrol inspection system, belongs to temperature measuring equipment field.It is characterized in that including sensor, signal selecting circuit, signal amplification circuit, D/A converting circuit, human-computer interaction module, controller, power module, communication interface and alarm module；Wherein sensor is connected with signal selecting circuit；Signal selecting circuit is connected with signal amplification circuit；Signal amplification circuit is connected with D/A converting circuit；D/A converting circuit, power module, alarm module, communication interface and human-computer interaction module are connected with controller.By the application of intelligent control chip, with reference to multi way temperature sensor, human-computer interaction module and warning device, the intelligent control of multipath temperature patrol inspection is realized, multipath temperature patrol inspection system of the present invention, it is simple in construction, easy to operation, it is easy to maintain, it is adapted to promote the use of in association area.
Description
Technical field
The invention belongs to temperature measuring equipment field, more particularly to a kind of intelligent multichannel temperature patrol inspection system.
Background technology
With the fast development of science and technology, the cycle that electronic technology updates drastically is shortening, along with computer, micro- electricity
The fast development of sub- technology, single-chip microcomputer is due to the advantages that its integrated level is high, function is strong, small volume, antijamming capability extensive use
In industrial control field.Also earth-shaking change is occurring for measuring instrument instrument, at present intelligent instrumentation design when without
One does not use single-chip microcomputer.Measurement and control of temperature is very extensive in field of industrial production application, and traditional temperature monitor typically can only
Single-point detection and only display function.
The content of the invention
A kind of present invention seek to address that above mentioned problem, there is provided intelligent multichannel temperature patrol inspection system.
A kind of intelligent multichannel temperature patrol inspection system, it is characterised in that including sensor, signal selecting circuit, signal amplification electricity
Road, D/A converting circuit, human-computer interaction module, controller, power module, communication interface and alarm module；Wherein sensor with
Signal selecting circuit is connected；Signal selecting circuit is connected with signal amplification circuit；Signal amplification circuit and digital-to-analogue conversion electricity
Road is connected；D/A converting circuit, power module, alarm module, communication interface and human-computer interaction module are connected with controller
Connect.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the sensor is that 16 tunnel temperature pass
Sensor.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the controller uses single-chip microcomputer
STC15F2K60S2。
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the communication interface is led to for RS485
Believe interface.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the power module is provided with two-way
Output circuit.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the output voltage of the power module
For 5V and 12V.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the operational amplification circuit uses
OP07 operational amplifiers.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the temperature sensor is Pt100
RTD.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, it is characterised in that the D/A converting circuit uses
TLC7135 double integrator digital analog converters.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, by the application of intelligent control chip, with reference to multichannel
Temperature sensor, human-computer interaction module and warning device, the intelligent control of multipath temperature patrol inspection is realized, it is of the present invention more
Road temperature patrol inspection system, it is simple in construction, easy to operation, it is easy to maintain, it is adapted to promote the use of in association area.
Brief description of the drawings
Fig. 1 is the structural schematic block diagram of intelligent multichannel temperature patrol inspection system of the present invention.
Embodiment
A kind of intelligent multichannel temperature patrol inspection system, as shown in figure 1, including sensor, signal selecting circuit, signal amplification electricity
Road, D/A converting circuit, human-computer interaction module, controller, power module, communication interface and alarm module；Wherein sensor with
Signal selecting circuit is connected；Signal selecting circuit is connected with signal amplification circuit；Signal amplification circuit and digital-to-analogue conversion electricity
Road is connected；D/A converting circuit, power module, alarm module, communication interface and human-computer interaction module are connected with controller
Connect.
A kind of intelligent multichannel temperature patrol inspection system of the present invention, the sensor are No. 16 temperature sensors.It is described
Controller uses single-chip microcomputer STC15F2K60S2,：High-precision RC clocks are internally integrated, and it is optional from 5 ~ 35 MHz；It is internally integrated
Reset circuit, 8 grades of reset threshold voltages are optional；E2PROM is internally integrated, for preserving user's arrange parameter and calibration parameter；Can
Mbus exports, to 1 ~ 65536 grade of frequency dividing output of system clock.The communication interface is RS485 communication interfaces.The power supply
Module is provided with two-way output circuit, and power module is set pulse signal control circuit and device for power switching MOSEFT in one
Power supply control chip.There is high integration, simple peripheral circuit, the isolation of high efficiency no industrial frequency transformer can be formed
Formula Switching Power Supply.Input power is put down by TOP414 switches and high frequency transformer transformation, then through over commutation, capacitor filtering and inductance
Ripple, export direct current.High frequency transformer secondary side has 3 windings, 2 tunnel power outputs, and another way provides power supply for backfeed loop.
Backfeed loop carries out voltage sampling from output end, controls Pulse Width Control to switch on-off by optocoupler, adjusts power output.For
Electric power circuit provides 5 V power supplys to circuit system respectively, provides 12 V power supplys to alarm and telecommunication circuit, and two-way exports
Power supply is mutually isolated.Because system is not high to 12 V power supplys required precisions, so backfeed loop samples from 5 V output ends, 12 V
Power supply is obtained by coil ratio.The operational amplification circuit uses OP07 operational amplifiers, in order to adapt to different inputs
Signal, OP07 and analog switch CD4051 form a programmable gain amplifier.The temperature sensor is Pt100 platinum electricity
Resistance, the temperature sensor of measuring instrumentss connection are made up of RTD and connecting wire.The resistance of connecting wire in accurate measurement
Influence to measurement result can not be ignored.Industrial Pt100 typically uses three-wire system connection, and one is connected in RTD one end
Lead, the other end connects two leads, and three line lengths, line footpath, material are consistent, so ensure that the resistance of three lines is equal.
This mode generally supports the use with compensation circuit, causes measurement error to eliminate conductor resistance.The D/A converting circuit is adopted
With TLC7135 double integrator digital analog converters, it is with the precision of 4 half, automatic zero adjustment, auto polarity output, single benchmark electricity
The features such as pressure, the output of dynamic word bit scanning BCD codes, interference resistance are strong, and stability is good.Multiple spot circling measurment of the present invention,
The measuring instrumentss of centralized management, the functions such as alarm, teletransmission, control, data record can be realized, automatic running is without artificially joining
With.
Claims (9)
1. a kind of intelligent multichannel temperature patrol inspection system, it is characterised in that including sensor, signal selecting circuit, signal amplification electricity
Road, D/A converting circuit, human-computer interaction module, controller, power module, communication interface and alarm module；Wherein sensor with
Signal selecting circuit is connected；Signal selecting circuit is connected with signal amplification circuit；Signal amplification circuit and digital-to-analogue conversion electricity
Road is connected；D/A converting circuit, power module, alarm module, communication interface and human-computer interaction module are connected with controller
Connect.
2. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the sensor is 16 tunnel temperature
Spend sensor.
3. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the controller uses monolithic
Machine STC15F2K60S2.
4. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the communication interface is RS485
Communication interface.
5. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the power module is provided with
Two-way output circuit.
A kind of 6. intelligent multichannel temperature patrol inspection system as claimed in claim 5, it is characterised in that the output of the power module
Voltage is 5V and 12V.
7. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the operational amplification circuit is adopted
With OP07 operational amplifiers.
8. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 2, it is characterised in that the temperature sensor is
Pt100 RTDs.
9. a kind of intelligent multichannel temperature patrol inspection system as claimed in claim 1, it is characterised in that the D/A converting circuit is adopted
With TLC7135 double integrator digital analog converters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116736.5A CN107764423A (en) | 2017-11-13 | 2017-11-13 | A kind of intelligent multichannel temperature patrol inspection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116736.5A CN107764423A (en) | 2017-11-13 | 2017-11-13 | A kind of intelligent multichannel temperature patrol inspection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764423A true CN107764423A (en) | 2018-03-06 |
Family
ID=61272387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711116736.5A Withdrawn CN107764423A (en) | 2017-11-13 | 2017-11-13 | A kind of intelligent multichannel temperature patrol inspection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568812A (en) * | 2019-09-10 | 2019-12-13 | 满誉(福建)制鞋机械有限公司 | PLC-based multi-path temperature centralized inspection device for shoe machine |
-
2017
- 2017-11-13 CN CN201711116736.5A patent/CN107764423A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568812A (en) * | 2019-09-10 | 2019-12-13 | 满誉(福建)制鞋机械有限公司 | PLC-based multi-path temperature centralized inspection device for shoe machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |