CN201765468U - Universal signal input digital display control instrument - Google Patents
Universal signal input digital display control instrument Download PDFInfo
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- CN201765468U CN201765468U CN2010202507639U CN201020250763U CN201765468U CN 201765468 U CN201765468 U CN 201765468U CN 2010202507639 U CN2010202507639 U CN 2010202507639U CN 201020250763 U CN201020250763 U CN 201020250763U CN 201765468 U CN201765468 U CN 201765468U
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Abstract
The utility model relates to a universal signal input digital display control instrument, which is characterized in that the control instrument comprises a constant-current excitation circuit (2), a signal modulation circuit (3), an internal temperature collection circuit (4), a signal switching circuit (5), a signal amplification circuit (6), an analog-to-digital conversion circuit (7), a display and press key circuit (8), a central processing unit (CPU) processing circuit (9), a transmitting output circuit (10), a switch amount input circuit (11), a relay output circuit (12), an RS485 communication circuit (13), a voltage reference circuit (14) and a signal input circuit (15). The universal signal input digital display control instrument of the utility model has various signal input functions.
Description
Technical field
The utility model relates to a kind of universal signal input digital display controller table, belongs to automatic intelligent element field.
Background technology
At present, existing measure and control device all is only to possess a kind of input function or two kinds of signal with different type input functions, measurement function is single, versatility is poor, can use polytype difference in functionality measure and control device at same electric power or Industry Control occasion, and measure and control device of a great variety but that measurement function is single can cause buying inconvenience and huge backing sheet stock burden, thereby causes the waste of human and financial resources.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of universal signal input digital display controller table with multiple signal input function is provided.
The purpose of this utility model is achieved in that a kind of universal signal input digital display controller table, it is characterized in that: described control instrument includes constant current drive circuit, signal conditioning circuit, internal temperature Acquisition Circuit, signal switching circuit, signal amplification circuit, mould/number conversion circuit, demonstration and key circuit, CPU treatment circuit, becomes and send output circuit, switching value input circuit, relay output circuit, RS485 communicating circuit, voltage reference circuit and signal input circuit, and described signal input circuit comprises
0～10k Ω resistance input circuit is arranged, the thermal resistance input circuit, DC0～10V input circuit, DC0～75mV input circuit, the DC300V input, thermopair input circuit and DC0～20mA input circuit, described 0～10k Ω resistance input circuit, the thermal resistance input circuit, DC0～10V input circuit, DC0～75mV input circuit, the DC300V input, thermopair input circuit and DC0～20mA input circuit is all with signal input signal conditioning circuit, described constant current drive circuit is with bias current input 0～10k Ω resistance input circuit and thermal resistance input circuit, described signal conditioning circuit with signal through signal switching circuit, signal amplification circuit and mould/number conversion circuit input CPU treatment circuit, described internal temperature Acquisition Circuit is with the temperature signal input signal commutation circuit that collects, the negative voltage reference signal input signal amplifying circuit of described voltage reference circuit, the positive voltage reference signal input mould/number conversion circuit of described voltage reference circuit, described CPU treatment circuit is with switching signal input signal commutation circuit; The universal I port of described CPU treatment circuit links to each other with key circuit, switching value input circuit and relay output circuit with demonstration respectively, the PWM output port and the change of described CPU treatment circuit send output circuit to link to each other, and the PORT COM of described CPU treatment circuit links to each other with the RS485 communicating circuit.
A kind of universal signal input of the utility model digital display controller table, the CPU of described CPU treatment circuit adopts 16 high speed PIC24FJxxGA00x of Microchip company, and the xx among the above-mentioned PIC24FJxxGA00x is meant 16,32,48 or 64, and x wherein refers to 2 or 4.
A kind of universal signal input of the utility model digital display controller table, described instrument includes power circuit, described power circuit adopts the TNY27x of TINY III series of PI company or TNY280 power supply chip as power supply control chip, x among the above-mentioned TNY27x refers to 4,5,6,7,8 or 9, described power circuit carries out full-wave rectification by bridge rectifier with AC power earlier and passes through capacitor filtering then, handle via power supply control chip again, give the each several part circuit supply via switch transformer output multiple power supplies.
A kind of universal signal input of the utility model digital display controller table, described constant current drive circuit is made of adjustable voltage benchmark LMx85Z, sampling resistor and an expansion current circuit, positive pole one termination of power supply is gone into the positive pole of LMx85Z, the other end is received the feedback pin of LMx85Z through a sampling resistor, the feedback pin of LMx85Z is connected with the input of expanding the stream driving circuit simultaneously, the negative pole pin of LMx85Z connects the control end that expands current circuit is received power supply again through a resistance reference ground, and the x among the described LMx85Z refers to 1,2 or 3.
The beneficial effects of the utility model are:
Because signal input circuit adopted multiple signal input circuit, and the control by CPU, can select each road input signal easily, thereby make the utility model to carry out input monitoring various signals, have more versatility.
Description of drawings
Fig. 1 is the utility model circuit structure block diagram.
Fig. 2 is the utility model circuit construction of electric power block diagram.
Among the figure:
0～10k Ω resistance input circuit 1501, thermal resistance input circuit 1502, DC0～10V input circuit 1503, DC0～75mV input circuit 1504, DC300V input 1505, thermopair input circuit 1506, DC0～20mA input circuit 1507.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of universal signal input digital display controller table, include power circuit 1, constant current drive circuit 2, signal conditioning circuit 3, internal temperature Acquisition Circuit 4, signal switching circuit 5, signal amplification circuit 6, mould/number conversion circuit 7, show and key circuit 8, CPU treatment circuit 9, become and send output circuit 10, switching value input circuit 11, relay output circuit 12, RS485 communicating circuit 13, voltage reference circuit 14 and signal input circuit 15, described signal input circuit 15 includes 0～10k Ω resistance input circuit 1501, thermal resistance input circuit 1502, DC0～10V input circuit 1503, DC0～75mV input circuit 1504, DC300V input 1505, thermopair input circuit 1506 and DC0～20mA input circuit 1507, described 0～10k Ω resistance input circuit 1501, thermal resistance input circuit 1502, DC0～10V input circuit 1503, DC0～75mV input circuit 1504, DC300V input 1505, thermopair input circuit 1506 and DC0～20mA input circuit 1507 is all with signal input signal conditioning circuit 3, described constant current drive circuit 2 is with bias current input 0～10k Ω resistance input circuit 1501 and thermal resistance input circuit 1502, described signal conditioning circuit 3 with signal through signal switching circuit 5, signal amplification circuit 6 and mould/number conversion circuit 7 input CPU treatment circuits 9, described internal temperature Acquisition Circuit 4 is with the temperature signal input signal commutation circuit 5 that collects, the negative voltage reference signal input signal amplifying circuit 6 of described voltage reference circuit 14, the positive voltage reference signal input mould/number conversion circuit 7 of described voltage reference circuit 14, described CPU treatment circuit 9 is with switching signal input signal commutation circuit 5
The universal I port of described CPU treatment circuit 9 links to each other with key circuit 8, switching value input circuit 11 and relay output circuit 12 with demonstration respectively, the PWM output port and the change of described CPU treatment circuit 9 send output circuit 10 to link to each other, and the PORT COM of described CPU treatment circuit 9 links to each other with RS485 communicating circuit 13.
The CPU of described CPU treatment circuit 9 adopts 16 high speed PIC24FJxxGA00x of Microchip company as CPU (central processing unit), and the xx among the above-mentioned PIC24FJxxGA00x is meant 16,32,48 or 64, and x wherein refers to 2 or 4.
Referring to Fig. 2, described power circuit 1 adopts the TNY27x of TINY III series of PI company or TNY280 power supply chip as power supply control chip, x among the above-mentioned TNY27x refers to 4,5,6,7,8 or 9, described power circuit 1 carries out full-wave rectification by bridge rectifier with AC power earlier and passes through capacitor filtering then, handle via power supply control chip again, give the each several part circuit supply via switch transformer output multiple power supplies.
Described constant current drive circuit 2 is made of adjustable voltage benchmark LMx85Z, sampling resistor and an expansion current circuit, positive pole one termination of power supply is gone into the positive pole of LMx85Z, the other end is received the feedback pin of LMx85Z through a sampling resistor, the feedback pin of LMx85Z is connected with the input of expanding the stream driving circuit simultaneously, and the negative pole pin of LMx85Z connects the control end that expands current circuit is received power supply again through a resistance negative pole.X among the described LMx85Z refers to 1,2 or 3.
Described internal temperature Acquisition Circuit 4 is connected in series a thermistor to forming with reference to ground by a voltage reference again through a resistance.
Claims (5)
1. a universal signal is imported the digital display controller table, it is characterized in that: described control instrument includes constant current drive circuit (2), signal conditioning circuit (3), internal temperature Acquisition Circuit (4), signal switching circuit (5), signal amplification circuit (6), mould/number conversion circuit (7), show and key circuit (8), CPU treatment circuit (9), become and send output circuit (10), switching value input circuit (11), relay output circuit (12), RS485 communicating circuit (13), voltage reference circuit (14) and signal input circuit (15), described signal input circuit (15) includes 0～10k Ω resistance input circuit (1501), thermal resistance input circuit (1502), DC0～10V input circuit (1503), DC0～75mV input circuit (1504), DC300V imports (1505), thermopair input circuit (1506) and DC0～20mA input circuit (1507), described 0～10k Ω resistance input circuit (1501), thermal resistance input circuit (1502), DC0～10V input circuit (1503), DC0～75mV input circuit (1504), DC300V imports (1505), thermopair input circuit (1506) and DC0～20mA input circuit (1507) is all with signal input signal conditioning circuit (3), described constant current drive circuit (2) is with bias current input 0～10k Ω resistance input circuit (1501) and thermal resistance input circuit (1502), described signal conditioning circuit (3) with signal through signal switching circuit (5), signal amplification circuit (6) and mould/number conversion circuit (7) input CPU treatment circuit (9), described internal temperature Acquisition Circuit (4) is with the temperature signal input signal commutation circuit (5) that collects, the negative voltage reference signal input signal amplifying circuit (6) of described voltage reference circuit (14), the positive voltage reference signal input mould/number conversion circuit (7) of described voltage reference circuit (14), described CPU treatment circuit (9) is with switching signal input signal commutation circuit (5); The universal I port of described CPU treatment circuit (9) links to each other with key circuit (8), switching value input circuit (11) and relay output circuit (12) with demonstration respectively, the PWM output port of described CPU treatment circuit (9) send output circuit (10) to link to each other with change, and the PORT COM of described CPU treatment circuit (9) links to each other with RS485 communicating circuit (13).
2. a kind of according to claim 1 universal signal input digital display controller table, it is characterized in that: the CPU of described CPU treatment circuit (9) adopts 16 high speed PIC24FJxxGA00x of Microchip company, xx among the above-mentioned PIC24FJxxGA00x is meant 16,32,48 or 64, and x wherein refers to 2 or 4.
3. a kind of as claimed in claim 1 or 2 universal signal input digital display controller table, it is characterized in that: described instrument includes power circuit (1), the TNY27x of the TINY III series of described power circuit (1) employing PI company or TNY280 power supply chip are as power supply control chip, x among the above-mentioned TNY27x refers to 4,5,6,7,8 or 9, described power circuit (1) carries out full-wave rectification by bridge rectifier with AC power earlier and passes through capacitor filtering then, handle via power supply control chip again, give the each several part circuit supply via switch transformer output multiple power supplies.
4. a kind of as claimed in claim 1 or 2 universal signal input digital display controller table, it is characterized in that: described constant current drive circuit (2) is by an adjustable voltage benchmark LMx85Z, sampling resistor and expansion current circuit constitute, positive pole one termination of power supply is gone into the positive pole of LMx85Z, the other end is received the feedback pin of LMx85Z through a sampling resistor, the feedback pin of LMx85Z is connected with the input of expanding the stream driving circuit simultaneously, the negative pole pin of LMx85Z connects the control end that expands current circuit is received power supply again through a resistance reference ground, and the x among the described LMx85Z refers to 1,2 or 3.
5. as a kind of universal signal input digital display controller table as described in the claim 3, it is characterized in that: described constant current drive circuit (2) is made of adjustable voltage benchmark LMx85Z, sampling resistor and an expansion current circuit, positive pole one termination of power supply is gone into the positive pole of LMx85Z, the other end is received the feedback pin of LMx85Z through a sampling resistor, the feedback pin of LMx85Z is connected with the input of expanding the stream driving circuit simultaneously, the negative pole pin of LMx85Z connects the control end that expands current circuit is received power supply again through a resistance negative pole, and the x among the described LMx85Z refers to 1,2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202507639U CN201765468U (en) | 2010-07-01 | 2010-07-01 | Universal signal input digital display control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202507639U CN201765468U (en) | 2010-07-01 | 2010-07-01 | Universal signal input digital display control instrument |
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| Publication Number | Publication Date |
|---|---|
| CN201765468U true CN201765468U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202507639U Expired - Fee Related CN201765468U (en) | 2010-07-01 | 2010-07-01 | Universal signal input digital display control instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879018A (en) * | 2012-09-18 | 2013-01-16 | 杭州电子科技大学 | Platinum resistance and analogous current transducing circuit |
| CN104764544A (en) * | 2015-03-20 | 2015-07-08 | 国核自仪系统工程有限公司 | Temperature signal auto-diagnosis circuit and diagnosis method thereof |
| CN108180939A (en) * | 2017-12-26 | 2018-06-19 | 中国航发四川燃气涡轮研究院 | A kind of multifunctional data acquisition card and measuring method |
-
2010
- 2010-07-01 CN CN2010202507639U patent/CN201765468U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879018A (en) * | 2012-09-18 | 2013-01-16 | 杭州电子科技大学 | Platinum resistance and analogous current transducing circuit |
| CN104764544A (en) * | 2015-03-20 | 2015-07-08 | 国核自仪系统工程有限公司 | Temperature signal auto-diagnosis circuit and diagnosis method thereof |
| CN108180939A (en) * | 2017-12-26 | 2018-06-19 | 中国航发四川燃气涡轮研究院 | A kind of multifunctional data acquisition card and measuring method |
| CN108180939B (en) * | 2017-12-26 | 2020-09-22 | 中国航发四川燃气涡轮研究院 | Multifunctional data acquisition card and measuring method |
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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: 20110316 Termination date: 20160701 |