CN202485880U - Embedded-type multi-channel air-tightness leaking detector - Google Patents
Embedded-type multi-channel air-tightness leaking detector Download PDFInfo
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- CN202485880U CN202485880U CN201220091505XU CN201220091505U CN202485880U CN 202485880 U CN202485880 U CN 202485880U CN 201220091505X U CN201220091505X U CN 201220091505XU CN 201220091505 U CN201220091505 U CN 201220091505U CN 202485880 U CN202485880 U CN 202485880U
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- impermeability
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- valve
- leak locator
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Abstract
The utility model discloses an embedded-type multi-channel air-tightness leaking detector which comprises a core board ARM9, a RS (radio sonde) 485 extension on the core board, a matrix keyboard, a display screen, an AVR (automatic voltage regulation) core processor of an acquisition end, two paths of pressure sensors, a modulus conversion chip, various pneumatic valves, electromagnetic valves, IIC (isotopes information center) memory and an external keyboard, wherein the core board, the display screen and the matrix keyboard are connected to form a control end of an instrument host. A detecting acquisition device of the instrument comprises the AVR, each path of sensor, IIC, the various electromagnetic valves, the pneumatic valves and four A/D chips. An integrated air-tightness leaking detector is formed by connecting the host end with four acquisition ends through RS 485, and possesses strong stability and expansibility.
Description
Technical field
The utility model relates to a kind of airtight leakage detection apparatus, particularly a kind of embedded type multichannel impermeability leak locator.
Background technology
Be that the equipment sealing of medium detects and is also referred to as impermeability and detects with gas, be mainly used in and parts such as closed container or valve are carried out impermeability detect.The impermeability leak locator of domestic production at present is to adopt 51 series monolithics as core processor mostly, receives the restriction of the performance of processor own, systemic-function expansion difficulty.Mainly there is following deficiency in present impermeability leak locator: 1, the core device performance that is untreated is not high, is difficult to the market demand that higher functionality such as network enabled observing and controlling, graphical man-machine interaction require; 2, be mostly the leak detection of single channel single object, can not support the synchronous leak detection of a plurality of objects through hyperchannel, mutual omission that more can not support target is surveyed.3, data managing capacity and storage capacity are limited, are subject to resource on the core processor sheet, are difficult to accomplish the storage and the fast query of mass data.Therefore, exploitation is a kind of can be simultaneously carries out quick leak-checking, has Large Volume Data management and function of statistic analysis, satisfies the novel embedded impermeability leak locator of remote measurement and control and friendly man-machine interaction the active demand that is market a plurality of measurands.
Summary of the invention
The purpose of the utility model is to overcome existing most of impermeability leak locators and is difficult to realize multi-channel synchronous leak detection and mutual omission brake, and proposes in the deficiency aspect long-range leak detection and the Mass Data Management.A kind of embedded impermeability leak locator that once can detect simultaneously 4 workpiece at most is provided, and it has the detection good stability, and precision is high, the characteristics of highly versatile, can also come it is carried out functions such as remote monitoring and information interaction through the internet.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
A kind of embedded type multichannel impermeability leak locator comprises the instrument control device, detects harvester; Said detection harvester is through interface and the communication of instrument control device.
The instrument control device is used for multi-channel data is shown, manages, stores and the support man-machine interaction; The data acquisition end is used for data acquisition and data processing.
Said instrument control device comprises that control main board, display, keyboard, said display, keyboard are external in control main board.Display is used to provide human-computer interaction interface; Keyboard is used to provide user's input operation.
Said detection harvester comprises microprocessor, gas filling valve, vent valve, solenoid valve, differential pressure pick-up, vertical compression sensor, electronic pressure regulating valve; Said gas filling valve, vent valve are electrically connected with microprocessor through solenoid valve respectively, and differential pressure pick-up, vertical compression sensor microprocessor respectively connect, and the electronic pressure regulating valve is connected with microprocessor.
Said detection harvester also comprises equalizing valve, and equalizing valve is connected with microprocessor through solenoid valve.
Microprocessor is used for being responsible for handling the running of various data and the whole detection harvester of control;
Gas filling valve is used to open and close source of the gas; Equalizing valve is used for auxiliary detection; Vent valve is used to discharge test gas; More precisely gas filling valve, equalizing valve, vent valve are respectively applied for and open or close source of the gas, cut off or open the path between standard and the tested device, sealing or discharge and detect loop gas;
Solenoid valve is used to control the opening and closing operations of each pneumatic valve;
Differential pressure pick-up is used for reading in real time the pressure differential between standard room and the measured piece, leakage measuring instrumentation;
The vertical compression sensor is used for reading in real time the vertical compression pressure of measured piece behind charge pressure and the equilibrium stage.
Said detection harvester also comprises A/D conversion chip, D/A conversion chip, IIC chip, primary memory; Differential pressure pick-up, vertical compression sensor are connected with microprocessor through the A/D conversion chip respectively; The electronic pressure regulating valve is connected with microprocessor through the D/A conversion chip, and IIC chip, primary memory are external in microprocessor.
A/D conversion chip user is converted into digital signal with the simulating signal that differential pressure pick-up, vertical compression sensor obtain;
The D/A conversion chip is used for the simulating signal that microprocessor sends is converted into digital signal, regulates charge pressure;
IIC chip, primary memory are used for significant data power down storage.
Said control main board is through RS485 and microprocessor communication.
Said instrument control device also comprises the serial ports expansion chip, and the serial ports expansion chip is connected with control main board.The serial ports expansion chip is used for original RS232 serial ports on the control main board is done expansion, expands to two RS485 serial ports.
Said interface is RS485, and control main board is through RS485 and microprocessor communication.
Said control main board is the ARM series processors; Said microprocessor is the AVR microprocessor.
Said detection harvester can expand to a plurality of.
The utility model with respect to the major advantage and the beneficial effect of prior art is:
1, the utility model is the embedded airtight leak locator of " one drags four " pattern, and 4 detection harvesters of a host computer control carry out the pattern that sealing detects to a plurality of workpiece simultaneously.This will significantly promote testing efficiency, shorten the test duration, thereby reduce production costs.
2, the utlity model has powerful data storage capacities, more convenient, more efficient to storage, inquiry, modification, the deletion of data.
3, the remote data monitoring query function of the utility model, promptly through Ethernet interface is provided, distance host can be controlled and information inquiry whole instrument by means of the internet very easily.This be most leak-testing appearance can't accomplish.
4, the utility model makes that user's human-computer interaction interface is more friendly, more attractive in appearance, operates simpler and easy.
In addition; The instrument system front and back end of the utility model provides the modular design functional part; The opening of raising equipment, maintainability and quick customization capability have satisfied the market demand in the present and following long duration on the whole, have improved product competitiveness.
Description of drawings
Fig. 1 is the utility model complete machine structure block scheme;
Fig. 2 is the gas circuit loop of the utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of the utility model is not limited thereto.
The block diagram of the utility model complete machine is as shown in Figure 1, comprises instrument control device 1, detects harvester 2; Detect harvester 2 through RS485 interface and 1 communication of instrument control device.Wherein instrument control device 1 comprises control main board 11, display 12, keyboard 13, display 12, keyboard 13 external and control main board 11.Control main board 11 is used to export the display 12 of human-computer interaction interface for being used for the ARM9 S3C2440 microprocessor of deal with data and each hardware module of control; The matrix keyboard 13 that is used for the man-machine interaction input.Be useful on the USB mouth that significant data imports and exports on the ARM9 S3C2440 microprocessor; The network interface RJ45 that is used for remote monitoring; Be used for the RS485 mouth of 4 detection harvesters communication (wherein two come out by 14 expansions of SC16C652B extended chip).
ARM9 microprocessor built-in power circuit, the Flash of 64M, the SDRAM of 64M; The GPIO outlet is based on the LCD chip (picking out the LCD display slot) of row-field scanning, USB mouth; Real-time clock RTC, DM9000 network card chip (picking out Ethernet RJ45 socket), serial port chip MAX3232SOP is (after doing the part hardware modifications; Pick out two RS485 mouths), serial ports expansion chip SC16C652B (expanding two RS485 mouths outward) forms, and core board is outside to be connected with keyboard with display screen.
Detect harvester implementation detection and wait the core data processor 21 of control and data processing to adopt the AVR series monolithic, model is ATMEGA128; The built-in real-time clock RTC of single-chip microcomputer, power circuit and processor serial port chip MAX3232SOP that join and that link to each other with the RS485 communication port; External IIC chip and the primary memory that is used for significant data power down storage of single-chip microcomputer; Be used to open and close the gas filling valve 22 of source of the gas, be used for the equalizing valve 23 of auxiliary detection, be used to discharge the vent valve 24 of test gas; The differential pressure pick-up 26 that is used for leakage measuring instrumentation is used to read the vertical compression sensor 27 of vertical compression pressure; Be used for 4 of analog-to-digital A/D chips, be used for 1 of the D/A chip of digital-to-analog conversion; Be used to control several solenoid valves 25 of each pneumatic valve; Be used for the test side and be independent of the external keyboard of host computer control end.Fig. 2 is the connection layout in gas circuit loop.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any changes of under spirit that does not deviate from the utility model and principle, being done, modification, substitute, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (10)
1. an embedded type multichannel impermeability leak locator is characterized in that comprising instrument control device (1), detects harvester (2); Said detection harvester (2) is through interface and instrument control device (1) communication.
2. according to the said embedded type multichannel impermeability of claim 1 leak locator, it is characterized in that said instrument control device (1) comprises that control main board (11), display (12), keyboard (13), said display (12), keyboard (13) are external in control main board (11).
3. according to the said embedded type multichannel impermeability of claim 1 leak locator; It is characterized in that said detection harvester (2) comprises that microprocessor (21), gas filling valve (22), vent valve (24), solenoid valve (25), differential pressure pick-up (26), vertical compression sensor (27), electronic pressure regulating valve (28), said gas filling valve (22), vent valve (24) are electrically connected with microprocessor (21) through solenoid valve (25) respectively; Differential pressure pick-up (26), vertical compression sensor (27) are connected with microprocessor (21) respectively, and electronic pressure regulating valve (28) is connected with microprocessor (21).
4. according to the said embedded type multichannel impermeability of claim 3 leak locator, it is characterized in that said detection harvester also comprises equalizing valve (23), equalizing valve (23) is connected with microprocessor (21) through solenoid valve (25).
5. according to the said embedded type multichannel impermeability of claim 3 leak locator; It is characterized in that said detection harvester (2) also comprises A/D conversion chip, D/A conversion chip, IIC chip, primary memory; Differential pressure pick-up (26), vertical compression sensor (27) are connected with microprocessor (21) through the A/D conversion chip respectively; Electronic pressure regulating valve (28) is connected with microprocessor (21) through the D/A conversion chip, and IIC chip, primary memory are external in microprocessor (21).
6. according to the said embedded type multichannel impermeability of claim 2 leak locator, it is characterized in that said instrument control device (1) also comprises serial ports expansion chip (14), serial ports expansion chip (14) is connected with control main board (11).
7. according to the said embedded type multichannel impermeability of claim 1 leak locator, it is characterized in that said interface is RS485, control main board (11) is through RS485 and microprocessor (21) communication.
8. according to the said embedded type multichannel impermeability of claim 7 leak locator, it is characterized in that said control main board (11) is the ARM series processors.
9. according to the said embedded type multichannel impermeability of claim 7 leak locator, it is characterized in that said microprocessor (21) is the AVR microprocessor.
10. according to each said embedded type multichannel impermeability leak locator of claim 1 to 9, it is characterized in that said detection harvester (2) can expand to a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220091505XU CN202485880U (en) | 2012-03-13 | 2012-03-13 | Embedded-type multi-channel air-tightness leaking detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220091505XU CN202485880U (en) | 2012-03-13 | 2012-03-13 | Embedded-type multi-channel air-tightness leaking detector |
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| CN202485880U true CN202485880U (en) | 2012-10-10 |
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| CN201220091505XU Expired - Fee Related CN202485880U (en) | 2012-03-13 | 2012-03-13 | Embedded-type multi-channel air-tightness leaking detector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928180A (en) * | 2012-11-30 | 2013-02-13 | 天津市中环电子计算机有限公司 | Portable automatic tester for quantitatively measuring gas tightness of aerospace military products |
| CN104135706A (en) * | 2014-07-31 | 2014-11-05 | 歌尔声学股份有限公司 | A direct pressure type gas tightness detection device and a gas tightness detection method |
| CN104458159A (en) * | 2013-09-16 | 2015-03-25 | 苏州工业园区格比机电有限公司 | Cooling valve leakage detection apparatus and detection method thereof |
| CN105699027A (en) * | 2016-01-28 | 2016-06-22 | 遵义市产品质量检验检测院 | A multichannel pipettor sealing performance examination device |
| WO2016197309A1 (en) * | 2015-06-09 | 2016-12-15 | 深圳明珠盈升科技有限公司 | Leakage detection sensor and leakage detection method therefor |
-
2012
- 2012-03-13 CN CN201220091505XU patent/CN202485880U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928180A (en) * | 2012-11-30 | 2013-02-13 | 天津市中环电子计算机有限公司 | Portable automatic tester for quantitatively measuring gas tightness of aerospace military products |
| CN104458159A (en) * | 2013-09-16 | 2015-03-25 | 苏州工业园区格比机电有限公司 | Cooling valve leakage detection apparatus and detection method thereof |
| CN104135706A (en) * | 2014-07-31 | 2014-11-05 | 歌尔声学股份有限公司 | A direct pressure type gas tightness detection device and a gas tightness detection method |
| WO2016197309A1 (en) * | 2015-06-09 | 2016-12-15 | 深圳明珠盈升科技有限公司 | Leakage detection sensor and leakage detection method therefor |
| CN105699027A (en) * | 2016-01-28 | 2016-06-22 | 遵义市产品质量检验检测院 | A multichannel pipettor sealing performance examination device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130313 |