CN107291122A - Frigid zone target range Intersection Measuring System temperature control modules - Google Patents
Frigid zone target range Intersection Measuring System temperature control modules Download PDFInfo
- Publication number
- CN107291122A CN107291122A CN201710646275.6A CN201710646275A CN107291122A CN 107291122 A CN107291122 A CN 107291122A CN 201710646275 A CN201710646275 A CN 201710646275A CN 107291122 A CN107291122 A CN 107291122A
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- CN
- China
- Prior art keywords
- heating film
- semiconductor
- oxide
- temperature control
- metal
- 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
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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
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Abstract
The present invention discloses a kind of frigid zone target range Intersection Measuring System temperature control modules, including master chip (U1), metal-oxide-semiconductor (Q1), three resistance (R1, R2, R3), heating plate (J1), thermistor (R4) and heating film (P1)；The signal anode of master chip (U1) connects signal receiving end by second resistance (R2), the grid of metal-oxide-semiconductor (Q1) is connected with the colelctor electrode of master chip (U1), the grid of metal-oxide-semiconductor (Q1) also connects 12V power supplys by first resistor (R1), and its drain electrode is connected with No. 2 mouths of heating film (P1)；Heating plate (J1) one end is connected with the negative pole of heating film (P1), the other end is connected with the positive pole of heating film (P1), two positive poles of heating film (P1) are connected with 12V power supplys, one end of thermistor (R4) is connected with the negative pole of heating film (P1), the other end is connected with the positive pole of heating film (P1), and the positive pole of heating film (P1) is connected with 3.3V power supplys.The temperature control modules of the present invention, sensitivity is high, easy to operate.
Description
Technical field
The invention belongs to optical measuring apparatus technical field of temperature control, particularly a kind of sensitivity is high, high easy to operate
Frigid zone target range Intersection Measuring System temperature control modules.
Background technology
Convergent measurement is one kind of optical measuring technique, is a kind of non-contact measurement skill developed rapidly in recent years
Art, has the advantages that easy to use, accuracy of measurement is high, real-time and automaticity is high.
, it is necessary to consider its application environment, use condition, detection accuracy etc. for Intersection Measuring System.Hardware aspect,
In order to cover visual field as far as possible and adapt to more shooting environmentals, two kinds of cameras of high frame frequency and high-resolution are can select.Turntable is (indoor
Often turntable is replaced to test with theodolite during experiment) it is light, mechanical, electrical, calculates integrated optical electric system, it is the important survey in ground target range
Measure equipment.To ensure to reach normal working temperature using phase function, expand the scope of application of system, camera also needs to heating control
Molding block.
In the Intersection Measuring System in frigid zone target range, because northern winter is excessively cold, many cameras all can not normal work
Make.Heating film is fitted with for all parts for being unsatisfactory for -30 DEG C of conditions of work in camera, is added using temperature sensor detection
Thermal part temperature realizes temperature control closed loop, is switched by high precision temperature control, and controlling to be powered to heating film powers off, and reaches heated member
To the operating temperature more than 0 DEG C.
Existing Intersection Measuring System temperature control modules circuit is as shown in Figure 1.Master chip is TLP521 and IRF540N.
TLP521 1 port connects 3V electricity.2 ports connect 1K resistance (R14), and the other end of 1K resistance (R14) is signal receiving end.TLP521
3 ports connect two 4.7K resistance (R1, R2), the grid of 4.7K resistance R1 another termination metal-oxide-semiconductor (IRF540N), 4.7K electricity
R2 other end ground connection is hindered, the Ube that 4.7K resistance (R1, R2) is used for adjusting metal-oxide-semiconductor (IRF540N) makes metal-oxide-semiconductor (IRF540N) work
Make in magnification region.TLP521 4 ports connect 24V power supplys.Heating film one terminates 24V power supplys, a termination metal-oxide-semiconductor (IRF540N)
Drain electrode, the source ground of metal-oxide-semiconductor (IRF540N).Signal is provided by FPGA, the 2 of TLP521 is output to through 1K resistance (R14)
Port, when signal is high level, TLP521 3,4 ports form loop, and now heating film is begun to warm up.When signal is low electricity
Usually TLP521 3,4 ports do not form loop, and now heating film does not work.
Therefore, the problem of prior art is present be：Intersection Measuring System temperature control modules temperature control is not sensitive enough, nothing
The heating-up temperature of method real-time control measuring system.
The content of the invention
It is an object of the invention to provide a kind of frigid zone target range Intersection Measuring System temperature control modules, sensitivity is high, behaviour
Make easy.
The technical solution for realizing the object of the invention is：
A kind of frigid zone target range Intersection Measuring System temperature control modules, including master chip U1, metal-oxide-semiconductor Q1, first resistor R1,
Second resistance R2 and 3rd resistor R3, heating plate J1, thermistor R4 and heating film P1；The signal anode of the master chip U1 with
Second resistance R2 one end is connected, and the other end of the second resistance R2 is signal receiving end, and the signal of the master chip U1 is born
End and emitter grounding；The grid of the metal-oxide-semiconductor Q1 is connected with master chip U1 colelctor electrode, and metal-oxide-semiconductor Q1 grid also passes through first
Resistance R1 connects 12V power supplys, the source ground of the metal-oxide-semiconductor Q1；Its drain electrode is connected with heating film P1 No. 2 mouths；The heating plate
J1 one end is connected with heating film P1 negative pole, and the other end is connected with heating film P1 positive pole, two positive poles of the heating film P1
It is connected with 12V power supplys；One end of the thermistor R4 is connected with heating film P1 negative pole, the positive pole of the other end and heating film P1
It is connected, the positive pole of the heating film P1 is connected with 3.3V power supplys；The negative pole of the heating film P1 is also grounded by 3rd resistor R3,
Heating film P1 negative pole is additionally operable to be connected with FPGA feedback input end；
Compared with prior art, its remarkable advantage is the present invention：
1st, sensitivity is high：Thermistor R4 is added in the present invention can react the temperature that heating plate J1 has reached in real time.
2nd, it is easy to operate：When thermistor R4 changes, the output voltage of ADCIN ports also becomes constantly
Change, FPGA receives the temperature that heating plate (J1) is obtained from ADCIN feedback voltage, is then decided whether by known temperature
Need to be heated again.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the circuit diagram of prior art Intersection Measuring System temperature control modules circuit.
Fig. 2 is the circuit diagram of frigid zone target range Intersection Measuring System temperature control modules of the present invention.
In figure, master chip U1, metal-oxide-semiconductor Q1, first resistor R1, second resistance R2,3rd resistor R3, heating plate J1, temperature-sensitive
Resistance R4, heating film P1..
Embodiment
As shown in Fig. 2 frigid zone target range Intersection Measuring System temperature control modules of the present invention, including master chip U1, metal-oxide-semiconductor
Q1, first resistor R1, second resistance R2 and 3rd resistor R3, heating plate J1, thermistor R4 and heating film P1；
The signal anode of the master chip U1 is connected with second resistance R2 one end, and the other end of the second resistance R2 is
Signal receiving end, the signal negative terminal and emitter grounding of the master chip U1；
The grid of the metal-oxide-semiconductor Q1 is connected with master chip U1 colelctor electrode, and metal-oxide-semiconductor Q1 grid also passes through first resistor R1
Connect 12V power supplys, the source ground of the metal-oxide-semiconductor Q1；Its drain electrode is connected with heating film P1 No. 2 mouths；
Described heating plate J1 one end is connected with heating film P1 negative pole, and the other end is connected with heating film P1 positive pole, described
Heating film P1 two positive poles are connected with 12V power supplys；
One end of the thermistor R4 is connected with heating film P1 negative pole, and the other end is connected with heating film P1 positive pole,
The positive pole of the heating film P1 is connected with 3.3V power supplys；
The negative pole of the heating film P1 is also grounded by 3rd resistor R3, and heating film P1 negative pole is additionally operable to anti-with FPGA
Input is presented to be connected；
The master chip U1 is optocoupler 4N25.
The metal-oxide-semiconductor Q1 is IRF3205S.
The first resistor R1 is 50K, and second resistance R2 is 2K, and 3rd resistor R3 is 50K.
The operation principle of the present invention is as follows：
Master chip U1 is connected by second resistance R2 with signal receiving end IO, receives the signal from FPGA.When FPGA hairs
When the signal gone out is high level, 4N2,5U1 4,5 ports form loop, and now metal-oxide-semiconductor IRF3205S disconnects, and heating plate (J1) is no
Work.When the signal that FPGA is sent is low level, 4N25 (U1) 4,5 ports do not form loop, now metal-oxide-semiconductor IRF3205S
Open, heating plate (J1) work, thermistor (R4) works as temperature-sensitive as the temperature of heating plate (J1) rises and constantly changes
When resistance (R4) changes, the output voltage of ADCIN ports is also constantly being changed, and FPGA is received from ADCIN's
Feedback voltage and the temperature for obtaining heating plate (J1), then decide whether to be heated again by known temperature.
The present invention can react the temperature that heating plate J1 has reached in real time, improve sensitive by adding thermistor R4
Degree.When thermistor R4 changes, the output voltage of ADCIN ports is also constantly being changed, and FPGA is received and come from
ADCIN feedback voltage and the temperature for obtaining heating plate (J1), then decide whether to be heated again by known temperature,
It is easy to operate.
Claims (4)
1. a kind of frigid zone target range Intersection Measuring System temperature control modules, it is characterised in that：
Including master chip (U1), metal-oxide-semiconductor (Q1), first resistor (R1), second resistance (R2) and 3rd resistor (R3), heating plate
(J1), thermistor (R4) and heating film (P1)；
The signal anode of the master chip (U1) is connected with one end of second resistance (R2), the other end of the second resistance (R2)
For signal receiving end, the signal negative terminal and emitter grounding of the master chip (U1)；
The grid of the metal-oxide-semiconductor (Q1) is connected with the colelctor electrode of master chip (U1), and the grid of metal-oxide-semiconductor (Q1) also passes through first resistor
(R1) 12V power supplys, the source ground of the metal-oxide-semiconductor (Q1) are connect；Its drain electrode is connected with No. 2 mouths of heating film (P1)；
Described heating plate (J1) one end is connected with the negative pole of heating film (P1), and the other end is connected with the positive pole of heating film (P1), institute
Two positive poles for stating heating film (P1) are connected with 12V power supplys；
One end of the thermistor (R4) is connected with the negative pole of heating film (P1), the other end and the positive pole phase of heating film (P1)
Even, the positive pole of the heating film (P1) is connected with 3.3V power supplys；
The negative pole of the heating film (P1) is also grounded by 3rd resistor (R3), and the negative pole of heating film (P1) is additionally operable to FPGA's
Feedback input end is connected.
2. temperature control modules according to claim 1, it is characterised in that：
The master chip (U1) is optocoupler 4N25.
3. temperature control modules according to claim 1, it is characterised in that：
The metal-oxide-semiconductor (Q1) is IRF3205S.
4. temperature control modules according to claim 1, it is characterised in that：
The first resistor (R1) is 50K, and second resistance (R2) is 2K, and 3rd resistor (R3) is 50K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646275.6A CN107291122A (en) | 2017-07-31 | 2017-07-31 | Frigid zone target range Intersection Measuring System temperature control modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710646275.6A CN107291122A (en) | 2017-07-31 | 2017-07-31 | Frigid zone target range Intersection Measuring System temperature control modules |
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| Publication Number | Publication Date |
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| CN107291122A true CN107291122A (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710646275.6A Pending CN107291122A (en) | 2017-07-31 | 2017-07-31 | Frigid zone target range Intersection Measuring System temperature control modules |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109863A (en) * | 2009-12-28 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Temperature control circuit |
| CN202904396U (en) * | 2012-08-06 | 2013-04-24 | 许世祥 | Servo voltage regulation temperature control device of electric blanket or electrically-heated kang |
| CN104085189A (en) * | 2014-07-08 | 2014-10-08 | 北京美科艺数码科技发展有限公司 | Heating protective circuit |
| CN204496316U (en) * | 2015-04-12 | 2015-07-22 | 陈照明 | A kind of Intelligent heating circuit based on 555 timers |
| CN204631656U (en) * | 2015-01-05 | 2015-09-09 | 天津市纯源尚品科技有限公司 | A kind of New-type computer heating radiator intelligent control circuit |
-
2017
- 2017-07-31 CN CN201710646275.6A patent/CN107291122A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109863A (en) * | 2009-12-28 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Temperature control circuit |
| CN202904396U (en) * | 2012-08-06 | 2013-04-24 | 许世祥 | Servo voltage regulation temperature control device of electric blanket or electrically-heated kang |
| CN104085189A (en) * | 2014-07-08 | 2014-10-08 | 北京美科艺数码科技发展有限公司 | Heating protective circuit |
| CN204631656U (en) * | 2015-01-05 | 2015-09-09 | 天津市纯源尚品科技有限公司 | A kind of New-type computer heating radiator intelligent control circuit |
| CN204496316U (en) * | 2015-04-12 | 2015-07-22 | 陈照明 | A kind of Intelligent heating circuit based on 555 timers |
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Application publication date: 20171024 |