CN201513723U - High-integration data collector for leakage detection of pipes - Google Patents
High-integration data collector for leakage detection of pipes Download PDFInfo
- Publication number
- CN201513723U CN201513723U CN2009202395039U CN200920239503U CN201513723U CN 201513723 U CN201513723 U CN 201513723U CN 2009202395039 U CN2009202395039 U CN 2009202395039U CN 200920239503 U CN200920239503 U CN 200920239503U CN 201513723 U CN201513723 U CN 201513723U
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- data collector
- cpld
- integrated data
- pressure
- eliminator
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Abstract
A high-integration data collector for leakage detection of pipes comprises a host computer, a pressure sensor, a temperature sensor, a flowmeter, and a circuit board, wherein a MCU respectively connected with a GPS receiver, a filter circuit, a CPLD, the pressure sensor, the temperature sensor, an Ethernet interface and a serial port is mounted on the circuit board; the CPLD is connected with the filter circuit and is sequentially connected with a photocoupler and the flowmeter. The high-integration data collector has the advantages of accurate data collection, accurate time mark, low power consumption, small volume, high reliability, less maintenance load, low cost, long service life (time between failures larger than 100,000 hours), and so on, and can be widely used in the leakage detection of conveying pipes. The high-integration data collector particularly suits the unattended continuous work occasions.
Description
One, technical field
The utility model relates to the pipeline data acquisition unit that leaks hunting, particularly a kind of pipeline that all monitoring points are carried out data capture synchronously on a pipeline high integrated data collector that leaks hunting.
Two, background technique
Determine the leakage point on the long distance pipeline, require each monitoring point strict synchronism along the line to carry out data capture, the pressure in the identical moment, temperature and traffic sampling data arrive upper-position unit simultaneously and carry out analyzing and positioning.The patent No. is that the Chinese patent of CN200520131844.6 discloses a kind of detection device structure that adopts embedded computer system, leakage point monitoring for pipeline, strict synchronism is carried out data capture and is contributed, but it exists following shortcoming or deficiency simultaneously: 1. level of integration is lower, the power consumption height; 2. be subject to influences such as deadlock, reliability is relatively poor; 3. maintenance workload is bigger, the cost height.
Three, summary of the invention
The purpose of this utility model provides a kind of improved pipeline high integrated data collector that leaks hunting, and adopts high integrated data collector, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art.
The pipeline described in the utility model high integrated data collector that leaks hunting, comprise main frame, pressure, temperature transducer, flowmeter and circuit board, it is characterized in that being equipped with on the described circuit board respectively the MCU that is connected with serial ports with gps receiver, eliminator, CPLD, pressure, temperature transducer, with big net port, described CPLD is connected with eliminator, is connected in turn with flowmeter with optocoupler.
Wherein, described main frame is connected with Ethernet interface or serial ports.Pressure, temperature transducer are installed on the tested pipeline and are connected by pressure, temperature signal line with MCU.Described gps receiver is connected with the pps pulse per second signal line by the time signal line with MCU.Described eliminator is connected by the PDM pulse signal-line with CPLD.Eliminator is connected by the PDM analog signal line with MCU.
The utility model has following advantage compared with prior art:
1, guarantees that each monitoring point strictness carries out data capture in the identical moment, and add the correct time mark for the data of gathering;
2, owing to adopt up-to-date high integration components and parts, low in energy consumption, volume is little, cost is low, cost have only prior art 1/2nd, volume have only its 1/5th, power consumption have only its 1/4th;
3, the workload of Wei Huing is little, reliability is high, and the mean time between failures is higher than 100,000 hours, is particularly suitable for continuous operation under unattended situation.
Four, description of drawings
Accompanying drawing is a kind of example structure schematic representation of the present utility model
Five, embodiment:
Consult accompanying drawing, a kind of pipeline high integrated data collector that leaks hunting comprises main frame 10, pressure, temperature transducer 1, flowmeter 2 and circuit board 11.Be equipped with on the circuit board 11 respectively with gps receiver 6, eliminator 4, CPLD5, pressure, temperature transducer 1, with the MCU7 that big net port 8 is connected with serial ports 9, CPLD5 is connected with eliminator 4, is connected in turn with flowmeter 2 with optocoupler 3.
During operation, MCU7 control CPLD5 produces the PDM pulse signal, through eliminator 4 filtering, obtains the PDM analogue signal, and this signal and pressure, the pressure of temperature transducer 1 output, temperature signal are compared, and obtains the value of pressure, temperature.The flux signal of flowmeter 2 outputs is transferred to CPLD5 after optocoupler 3 is isolated, the counter module in the CPLD5 is counted and the result is transferred to MCU7 by data signal line.The pps pulse per second signal of gps satellite receiver 6 links to each other with the interrupt signal pin of MCU7 by signaling line.Gps receiver 6 produces a pulse signal as interrupt source signal when begin each second, MCU7 responds this interruption, begin one second pressure, temperature and flow data collector.MCU7 reads time reference signal by the time signal line.Sampled data is transferred to monitoring system main frame 10 by Ethernet interface 8 or serial ports 9 after adding time tag.MCU7 began image data immediately when pulse signal arrived.During with the pps pulse per second signal trigger data acquisition of gps receiver 6, the time error that each monitoring point begins image data will guarantee highi degree of accuracy regularly less than 1 microsecond.The utility model has adopted many designs targetedly for improving system reliability, as: power supply unit has functions such as overcurrent protection, transient state inhibition; For preventing the program fleet in the MCU7, in CPLD5, realized again the house dog in MCU7 having avoided the generation of system in case of system halt effectively by a house dog; Input signal is isolated with optocoupler 3, to avoid of the damage of external abnormal signal internal hardware.These measures safeguards system are effectively worked under unattended situation continuously reliably.
Claims (6)
1. a pipeline high integrated data collector that leaks hunting, comprise main frame, pressure, temperature transducer, flowmeter and circuit board, it is characterized in that being equipped with on the described circuit board respectively the MCU that is connected with serial ports with gps receiver, eliminator, CPLD, pressure, temperature transducer, with big net port, described CPLD is connected with eliminator, is connected in turn with flowmeter with optocoupler.
2. the pipeline according to claim 1 high integrated data collector that leaks hunting is characterized in that described main frame is connected with Ethernet interface or serial ports.
3. the pipeline according to claim 1 high integrated data collector that leaks hunting is characterized in that pressure, temperature transducer are installed on the tested pipeline to be connected by pressure, temperature signal line with MCU.
4. the pipeline according to claim 1 high integrated data collector that leaks hunting is characterized in that described gps receiver is connected with the pps pulse per second signal line by the time signal line with MCU.
5. the pipeline according to claim 1 high integrated data collector that leaks hunting is characterized in that described eliminator is connected by the PDM pulse signal-line with CPLD.
6. the pipeline according to claim 1 high integrated data collector that leaks hunting is characterized in that eliminator is connected by the PDM analog signal line with MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202395039U CN201513723U (en) | 2009-10-01 | 2009-10-01 | High-integration data collector for leakage detection of pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202395039U CN201513723U (en) | 2009-10-01 | 2009-10-01 | High-integration data collector for leakage detection of pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513723U true CN201513723U (en) | 2010-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202395039U Expired - Fee Related CN201513723U (en) | 2009-10-01 | 2009-10-01 | High-integration data collector for leakage detection of pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563362A (en) * | 2011-12-31 | 2012-07-11 | 杭州哲达科技股份有限公司 | Compressed air system and intelligent pipe network leakage detecting method for same |
-
2009
- 2009-10-01 CN CN2009202395039U patent/CN201513723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563362A (en) * | 2011-12-31 | 2012-07-11 | 杭州哲达科技股份有限公司 | Compressed air system and intelligent pipe network leakage detecting method for same |
| CN102563362B (en) * | 2011-12-31 | 2013-08-28 | 杭州哲达科技股份有限公司 | Compressed air system and intelligent pipe network leakage detecting method for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100623 Termination date: 20121001 |