CN103837192A - High-performance paperless recorder - Google Patents
High-performance paperless recorder Download PDFInfo
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- CN103837192A CN103837192A CN201210496417.2A CN201210496417A CN103837192A CN 103837192 A CN103837192 A CN 103837192A CN 201210496417 A CN201210496417 A CN 201210496417A CN 103837192 A CN103837192 A CN 103837192A
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Abstract
The invention discloses a high-performance paperless recorder which comprises a pressure sensor, a temperature sensor, a flow sensor, a humidity sensor and an amplifying circuit used for amplifying electrical signals output by above sensors. The high-performance paper recorder further comprises a filter circuit, an A/D switching circuit and a power module. The pressure sensor, the temperature sensor, the flow sensor and the humidity sensor are all connected with the amplifying circuit, the amplifying circuit is connected with the filter circuit, and the filter circuit is connected with the A/D switching circuit. The A/D switching circuit is connected with an optoelectronic isolation circuit which is connected with a single chip microcomputer, the input end of the single chip microcomputer is connected with a watchdog circuit, a clock circuit and a keyboard input module, the output end of the single chip microcomputer is connected with an LCD module and a memorizer, and the single chip microcomputer is in connection and communication with an upper computer through a serial communication circuit. The high-performance paperless recorder is reasonable in structural design, quick and sensitive, good in stability, high in real-time performance, good in anti-interference performance, and convenient to popularize and use.
Description
Technical field
The present invention relates to a kind of registering instrument, particularly relate to a kind of high-performance recording instrument without paper.
Background technology
Industrial usually needs recorded the information such as temperature, pressure, flow, and conventional simulation registering instrument, because function is few, show single, to need recording pointer shortcoming, is just replaced by recording instrument without paper.As a taking microprocessor as core, collection liquid crystal Chinese character and figure be shown as one. have without paper record, real-time is good, versatility is good, precision is high, smart instrumentation with communication function, its extensive market.Current many manufacturers are just focusing on sight the color screen of registering instrument, large capacity storage: the functions such as jumbotron liquid crystal display; But for user, what be concerned about most is precision and reliability, applicability, the combination property of the instrument such as cost performance. therefore study particularly key of problems.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of high-performance recording instrument without paper is provided.This high-performance recording instrument without paper reasonable in design, quick fast, good stability, real-time is high, and anti-interference is good, is convenient to promote the use of.
For achieving the above object, the technical solution used in the present invention is: a kind of high-performance recording instrument without paper, it is characterized in that: comprise the pressure transducer for gathering pressure signal, for the temperature sensor of collecting temperature signal, for gathering the flow sensor of flow signal and for gathering the humidity sensor of moisture signal and the amplifying circuit for above-mentioned each sensor output electrical signals is amplified, also comprise for the simulating signal after amplifying being carried out to the filtering circuit of filtering processing and carrying out the A/D change-over circuit of digital-to-analog conversion and the power module for the each power unit power supply of system for the simulating signal to through filtering processing, described pressure transducer, temperature sensor, flow sensor and humidity sensor all join with amplifying circuit, described amplifying circuit and filtering circuit join, described filtering circuit and A/D change-over circuit join, described A/D change-over circuit is connected to photoelectric isolating circuit, described photoelectric isolating circuit is connected to single-chip microcomputer, the input end of described single-chip microcomputer is connected to the watchdog circuit for preventing program fleet, be used to system that clock circuit and the keyboard load module of time reference are provided, the output terminal of described single-chip microcomputer is connected to LCD MODULE and storer, described single-chip microcomputer is joined and is communicated by serial communication circuit and host computer, before and after comprising, recollects described keyboard load module button, passage button, time button, confirm button and turnover key.
Above-mentioned a kind of high-performance recording instrument without paper, is characterized in that: described single-chip microcomputer is chip MSP430F149.
Above-mentioned a kind of high-performance recording instrument without paper, is characterized in that: described LCD MODULE adopts Liquid Crystal Module JMl2864.
Above-mentioned a kind of high-performance recording instrument without paper, is characterized in that: described serial communication circuit is RS232 interface circuit.
The present invention compared with prior art has the following advantages:
1, reasonable in design: power module, pressure transducer, temperature sensor, flow sensor, humidity sensor, amplifying circuit, filtering circuit, A/D modular converter, photoelectric isolation module, watchdog circuit, serial communication interface circuit, clock module, keyboard load module, LCD MODULE and storer, its structural design advantages of simple.
2, reliability is high: for improving the reliability of this tester, the present invention adopts following measures: for anti-locking system surprisingly restarts or crashes, adopt the mode of photoelectric coupling isolation, after to storer data writing, read at once write data and carry out verification, ensure that data transmission is correct.
4, antijamming capability is strong: the present invention adopts photoelectric isolation module, greatly reduces the phase mutual interference of input/output module, has strengthened antijamming capability.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the present invention.
Description of reference numerals:
1-pressure transducer; 2-temperature sensor; 3-flow sensor;
4-humidity sensor; 5-amplifying circuit; 6-filtering circuit;
7-A/D change-over circuit; 8-photoelectric isolating circuit; 9-LCD MODULE;
10-storer; 11-single-chip microcomputer; 12-keyboard load module;
13-clock circuit; 14-watchdog circuit; 15-power circuit.
Embodiment
A kind of high-performance recording instrument without paper as shown in Figure 1, comprise the pressure transducer 1 for gathering pressure signal, for the temperature sensor 2 of collecting temperature signal, for gathering the flow sensor 3 of flow signal and for gathering the humidity sensor 4 of moisture signal and the amplifying circuit 5 for above-mentioned each sensor output electrical signals is amplified, also comprise for the simulating signal after amplifying being carried out to the filtering circuit 6 of filtering processing and carrying out the A/D change-over circuit 7 of digital-to-analog conversion and the power module 15 for the each power unit power supply of system for the simulating signal to through filtering processing, described pressure transducer 1, temperature sensor 2, flow sensor 3 and humidity sensor 4 all join with amplifying circuit 5, described amplifying circuit 5 joins with filtering circuit 6, described filtering circuit 6 joins with A/D change-over circuit 7, described A/D change-over circuit 7 is connected to photoelectric isolating circuit 8, described photoelectric isolating circuit 8 is connected to single-chip microcomputer 11, the input end of described single-chip microcomputer 11 is connected to the watchdog circuit 14 for preventing program fleet, be used to system that clock circuit 13 and the keyboard load module 12 of time reference are provided, the output terminal of described single-chip microcomputer 11 is connected to LCD MODULE 9 and storer 10, described single-chip microcomputer 11 is joined and is communicated by serial communication circuit 16 and host computer 17, before and after comprising, recollects described keyboard load module 12 button, passage button, time button, confirm button and turnover key.
In the present embodiment, described single-chip microcomputer 11 is chip MSP430F149.Described LCD MODULE 9 adopts Liquid Crystal Module JMl2864.Described serial communication circuit 16 is RS232 interface circuit.
The course of work of the present invention is: the simulating signal (pressure, temperature, flow etc.) from external sensor is carried out analog to digital conversion after amplifying circuit 5 is processed. after signal isolation, send into single-chip microcomputer 11 and complete data processing, shown the information such as current pressure, temperature, instantaneous delivery, integrated flux by LCD MODULE 9.By keyboard operation, can between each interface, switch, show respectively each passage in real time, historical data and curve, alarm condition, powering-off state, and monthly, day, the integrated flux in year.Native system provides communication function in addition, can, by reading and writing parameter and service data with host computer 17 by serial port, realize the information interactions such as printing.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (4)
1. a high-performance recording instrument without paper, it is characterized in that: comprise the pressure transducer (1) for gathering pressure signal, for the temperature sensor (2) of collecting temperature signal, for gathering the flow sensor (3) of flow signal and for gathering the humidity sensor (4) of moisture signal and the amplifying circuit (5) for above-mentioned each sensor output electrical signals is amplified, also comprise for the simulating signal after amplifying being carried out to the filtering circuit (6) of filtering processing and carrying out the A/D change-over circuit (7) of digital-to-analog conversion and the power module (15) for the each power unit power supply of system for the simulating signal to through filtering processing, described pressure transducer (1), temperature sensor (2), flow sensor (3) and humidity sensor (4) all join with amplifying circuit (5), described amplifying circuit (5) joins with filtering circuit (6), described filtering circuit (6) joins with A/D change-over circuit (7), described A/D change-over circuit (7) is connected to photoelectric isolating circuit (8), described photoelectric isolating circuit (8) is connected to single-chip microcomputer (11), the input end of described single-chip microcomputer (11) is connected to the watchdog circuit (14) for preventing program fleet, be used to system that clock circuit (13) and the keyboard load module (12) of time reference are provided, the output terminal of described single-chip microcomputer (11) is connected to LCD MODULE (9) and storer (10), described single-chip microcomputer (11) is joined and is communicated by serial communication circuit (16) and host computer (17), before and after comprising, recollects described keyboard load module (12) button, passage button, time button, confirm button and turnover key.
2. a kind of high-performance recording instrument without paper according to claim 1, is characterized in that: described single-chip microcomputer (11) is chip MSP430F149.
3. a kind of high-performance recording instrument without paper according to claim 1, is characterized in that: described LCD MODULE (9) adopts Liquid Crystal Module JM12864.
4. a kind of high-performance recording instrument without paper according to claim 1, is characterized in that: described serial communication circuit (16) is RS232 interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496417.2A CN103837192A (en) | 2012-11-27 | 2012-11-27 | High-performance paperless recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210496417.2A CN103837192A (en) | 2012-11-27 | 2012-11-27 | High-performance paperless recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103837192A true CN103837192A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210496417.2A Pending CN103837192A (en) | 2012-11-27 | 2012-11-27 | High-performance paperless recorder |
Country Status (1)
| Country | Link |
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| CN (1) | CN103837192A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423563A (en) * | 2015-12-20 | 2016-03-23 | 成都雷纳斯科技有限公司 | Intelligent control system based on image-fingerprint signal transmission circuit for electric water heater |
| CN105423562A (en) * | 2015-12-20 | 2016-03-23 | 成都雷纳斯科技有限公司 | Intelligent fingerprint control system for electric water heater |
| CN105526986A (en) * | 2016-01-27 | 2016-04-27 | 贵州大学 | Liquid flow measurement and acquisition device |
-
2012
- 2012-11-27 CN CN201210496417.2A patent/CN103837192A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423563A (en) * | 2015-12-20 | 2016-03-23 | 成都雷纳斯科技有限公司 | Intelligent control system based on image-fingerprint signal transmission circuit for electric water heater |
| CN105423562A (en) * | 2015-12-20 | 2016-03-23 | 成都雷纳斯科技有限公司 | Intelligent fingerprint control system for electric water heater |
| CN105526986A (en) * | 2016-01-27 | 2016-04-27 | 贵州大学 | Liquid flow measurement and acquisition device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |