CN2839980Y - Intelligent flow sensing display instrument - Google Patents
Intelligent flow sensing display instrument Download PDFInfo
- Publication number
- CN2839980Y CN2839980Y CN 200520065353 CN200520065353U CN2839980Y CN 2839980 Y CN2839980 Y CN 2839980Y CN 200520065353 CN200520065353 CN 200520065353 CN 200520065353 U CN200520065353 U CN 200520065353U CN 2839980 Y CN2839980 Y CN 2839980Y
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- infrared receiving
- flow sensing
- circuit
- output
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an intelligent flow sensing displaying instrument, which comprises a casing < 1 >, a display window < 2 >, a circuit board < 4 > and a control circuit, wherein the casing < 1 > is cast by stainless steel materials; the display window < 2 > is made of tempered glass; the circuit board < 4 > is sealed and fixed in the casing < 1 > by a transparent epoxy resin layer < 3 >; the control circuit is composed of a single chip computer, an inducting converter, an infrared receiving head, an output displaying circuit and a power supply module; the inducting converter and the infrared receiving head are respectively connected with the input terminal of the single chip computer, and the output displaying circuit is connected with the output terminal of the single chip computer; the power supply module is respectively connected with the single chip computer, the inducting converter, the infrared receiving head, the output displaying circuit and the power supply module. The utility model has the advantage of high flow measuring precision. The utility model can operate under the environment of the interference of water vapor, full moisture and a strong electromagnetic field for a long period.
Description
Technical field
The utility model relates to a kind of intelligent flow sensing display instrument that the instantaneous delivery and the integrated flux in a period of time of pipeline under the various media are measured demonstration, and its energy long-time running is at water vapour, complete wet environment.
Background technology
At present, the intelligent flow sensing display instrument under water vapour, complete wet, the strong-electromagnetic field interference environment, reliability is not high all the time, error in dipping is big.Trace it to its cause, the intelligent sensing display instrument must use microprocessor, and microprocessor the program fleet phenomenon occurs easily under the big interference of electromagnetic field; Under strong-electromagnetic field disturbs, when following supply line the high peak interference voltage to occur very simultaneously, the huge step voltage or the electric field that strides may appear in microprocessor and surrounding environment, microprocessor and power supply source, make the microprocessor of MOS technology manufacturing produce controlled silicon effect rapidly, cause the RAM data corruption, microprocessor resets, and damages device when serious.In order to overcome above problem, the domestic method that adopts software programming more, but in fact no matter be program fleet or controlled silicon effect, program design cleverly is restore data fully, is that the front end intelligent flow sensing display instrument measuring accuracy of core is still waiting to improve with the microprocessor.
And the price comparison of existing high-performance intelligent flow sensing display instrument is expensive, and data setting generally adopts instrument surface keyboard to set up, does not adopt infra-red remote control to set.
Summary of the invention
The purpose of this utility model provides the intelligent flow sensing display instrument of a kind of energy long-time running under water vapour, full wet environment.
The purpose of this utility model can realize by following technical measures:
A kind of intelligent flow sensing display instrument, comprise housing, display window, wiring board, control circuit, power module, described housing adopts the stainless steel material casting to form, and display window is a tempered glass, and wiring board uses the transparent epoxy layer sealing and fixing in housing.
Control circuit comprises single-chip microcomputer, inductive transducer, infrared receiving terminal, output display circuit, power module composition, inductive transducer, infrared receiving terminal connect the input end of single-chip microcomputer respectively, the output display circuit connects the output terminal of single-chip microcomputer, and power module is connected with single-chip microcomputer, inductive transducer, infrared receiving terminal, output display circuit, power module respectively.
The utility model is reasonable in design, because housing adopts the stainless steel material casting to form, display window is a tempered glass, wiring board with the transparent epoxy resin sealing and fixing in housing, thereby can long-time running under water vapour, complete wet, strong-electromagnetic field interference environment.Adopt the infra-red remote control keyboard to carry out data setting, flow metering precision height.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of intelligent flow sensing display instrument, comprise housing [1], display window [2], wiring board [4], control circuit, power module E, housing [1] adopts the stainless steel material casting to form, display window [2] is a tempered glass, wiring board [4], power module E are installed in the housing [1], and wherein wiring board [4] seals with transparent epoxy tree layer [3] fat.
Control circuit comprises single-chip microcomputer U
1, inductive transducer F, infrared receiving terminal U
2, the output display circuit forms single-chip microcomputer U
1The product P IC16C717 of U.S. Microchip company is selected in employing for use, and order line separates with data line, and its outstanding advantage is: the antijamming capability extra-heavy, and each I/O mouth all has the maintenance diode of two high speeds, and the peak voltage that power supply is introduced in can suppressing disturbs; Fast operation, instruction efficient height; Cost is low.Its pin 1,8,19,20 meets power module E, pin 2 external inputs, and pin 3 external buzzer BB, hummer BB is in series with capacitor C
1Pin 4,5,7 external expansion interfaces, pin 6 meets infrared receiving terminal U
2Output, pin 9,10 external crystal oscillator OSC, bipod ground capacitance C
2, C
3Effect be to improve antijamming capability and filtering higher hamonic wave, pin 11～18,21～28 is done output and is used.Inductive transducer F, infrared receiving terminal U
2Meet single-chip microcomputer U respectively
1Input end, output display circuit comprise charactron DS, resistance R
1～R
8, triode T
1～T
8, resistance R
9～R
14, resistance R
1～R
8Respectively with triode T
1～T
8After the series connection again with single-chip microcomputer U
1Pin 21～28 is connected resistance R with charactron DS
9～R
14One termination charactron DS, the other end meets single-chip microcomputer U
1Pin 11～18, power module respectively with single-chip microcomputer U
1, inductive transducer F, infrared receiving terminal U
2, the output display circuit connects.
This sensing display instrument and turbine or oval flowmeter are used, the frequency signal of turbine or oval flowmeter output directly enters CPU from inductive transducer F through the CPUAO mouth, the electric signal that mechanical quantity is changed into electric weight directly send single-chip microcomputer U1 to handle, improved antijamming capability, handle computing according to the control algolithm of software to the received signal, obtain real-time (adding up) flow signal through CPUBO～B7, R
1～R
8, T
1～T
8, R
9～R
14, show that to 8 charactron DS the real-time or flow that adds up of demonstration can switch through infrared receiving terminal U2 remote control; Simultaneously, pass the output of sensing display instrument and go back extensive interface, but the flow results signal (and non-traditional real-time traffic cumulative signal) that teletransmission software is righted the wrong is to remote computer.
Power module E adopts Switching Power Supply, provides DC9V to transistor T
1～T
8Power supply provides DC5V respectively to single-chip microcomputer U
1, receive a U
2, power supply such as crystal oscillator OSC.
Claims (4)
1, a kind of intelligent flow sensing display instrument, comprise housing [1], display window [2], wiring board [4], control circuit, it is characterized in that described housing [1] adopts the stainless steel material casting to form, display window [2] is a tempered glass, and wiring board [4] uses transparent epoxy layer [3] sealing and fixing in housing.
2, intelligent flow sensing display instrument according to claim 1 is characterized in that control circuit comprises single-chip microcomputer U
1, inductive transducer F, infrared receiving terminal U
2, output display circuit, power module E form inductive transducer F, infrared receiving terminal U
2Meet single-chip microcomputer U respectively
1Input end, output display circuit meet single-chip microcomputer U
1Output terminal, power module respectively with single-chip microcomputer U
1, inductive transducer F, infrared receiving terminal U
2, output display circuit, power module E connect.
3, intelligent flow sensing display instrument according to claim 2 is characterized in that single-chip microcomputer U
1Be PIC16C717.
4, intelligent flow sensing display instrument according to claim 2 is characterized in that single-chip microcomputer U
1Be circumscribed with crystal oscillator OSC, bipod is connected to capacitor C over the ground
2, C
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065353 CN2839980Y (en) | 2005-09-28 | 2005-09-28 | Intelligent flow sensing display instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065353 CN2839980Y (en) | 2005-09-28 | 2005-09-28 | Intelligent flow sensing display instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839980Y true CN2839980Y (en) | 2006-11-22 |
Family
ID=37427961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520065353 Expired - Fee Related CN2839980Y (en) | 2005-09-28 | 2005-09-28 | Intelligent flow sensing display instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2839980Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416768A (en) * | 2023-06-12 | 2023-07-11 | 山东特发光源光通信有限公司 | Early warning system for central processing unit of optical cable cutting machine |
-
2005
- 2005-09-28 CN CN 200520065353 patent/CN2839980Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116416768A (en) * | 2023-06-12 | 2023-07-11 | 山东特发光源光通信有限公司 | Early warning system for central processing unit of optical cable cutting machine |
| CN116416768B (en) * | 2023-06-12 | 2023-08-29 | 山东特发光源光通信有限公司 | Early warning system for central processing unit of optical cable cutting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |