CN202916243U - Bus duct operating condition real-time wireless monitoring system - Google Patents
Bus duct operating condition real-time wireless monitoring system Download PDFInfo
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- CN202916243U CN202916243U CN 201220243805 CN201220243805U CN202916243U CN 202916243 U CN202916243 U CN 202916243U CN 201220243805 CN201220243805 CN 201220243805 CN 201220243805 U CN201220243805 U CN 201220243805U CN 202916243 U CN202916243 U CN 202916243U
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- bus duct
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Abstract
The utility model provides a bus duct operating condition real-time wireless monitoring system which mainly comprises an acoustic emission sensor with a built-in pre-amplifier, a signal processing and transmitting module and a receiving module. After being amplified and filtered, an electric signal output by the acoustic emission sensor is sampled by a high-speed data acquisition card; digital filtering, feature parameter extraction and parameter analysis evaluation are carried out by a digital signal processing module; and a bus duct is judged whether to be deformed or damaged; and an analysis processing result is sent to a monitoring terminal by a Zigbee wireless transmission module. The system has a simple structure, is low in cost, is accurate and reliable and can remotely monitor the operating condition of the bus duct in real time.
Description
Technical field
The utility model relates to bus duct running status Wireless real-time monitoring system, belongs to technical field of nondestructive testing.
Background technology
Bus duct is a kind of equipment of being responsible for transmission in the low-voltage distribution system and distributing electric energy, have the advantages such as capacity is large, current capacity is strong, security performance is good, be widely used in indoor substation, skyscraper and industrial building, carry out distribution to replace traditional cable.Bus duct is when long-time running, the dilatational strain of its temperature rise and the rear generation of being heated is larger to its serviceability and reliability effect, particularly short circuit or when flowing through large electric current bus duct produce powerful electric power, cause the interior busbar of bus duct to produce flexural deformation so that damage, this not only has influence on the serviceable life of bus duct and the safety of relevant device, and more the safety and stablization of whole electric system in serious threat.For this reason, country has promulgated GB7251 " bus duct (bus mains system) " standard, provides the guarantee foundation to the safe operation of bus duct.
Therefore provide a kind of can be very necessary to the system of bus duct running state real-time monitoring.
The utility model content
For above-mentioned situation, the purpose of this utility model provides a kind of bus duct running status Wireless real-time monitoring system.Collection, processing and analysis by acoustic emission signal that bus duct is produced can obtain the multidate information that there is defective in bus duct, estimate the extent of injury of defective with this, and integrality and the expected service life of structure are judged.
The technical solution adopted in the utility model is: bus duct running status Wireless real-time monitoring system mainly comprises calibrate AE sensor, the calibrate AE sensor of built-in prime amplifier, signal is processed and transmitter module, receiver module, the electric signal of calibrate AE sensor output carries out filtering after amplifying through prime amplifier, by supplied with digital signal disposal system after the high-speed data acquisition card sampling, to carry out digital filtering, characteristic parameter extraction and parameter assay, judge thus whether bus duct is out of shape or damages, and analysis processing result is sent to monitor terminal by the Zigbee wireless-transmission network.
Description of drawings
Fig. 1 is the system diagram of the utility model embodiment.
Fig. 2 is the signal processing system figure of the utility model embodiment.
Embodiment
Below by specific instantiation embodiment of the present utility model is described, those skilled in the art can understand advantage of the present utility model and effect easily by the content that instructions discloses.The utility model also can be implemented or used by other different instantiations, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present utility model not deviating from.
The schematic diagram of the utility model embodiment, as shown in Figure 1, this device comprises: the bus duct that 1-is detected, the calibrate AE sensor of the built-in prime amplifier of 2-, the 3-signal is processed and transmitter module, 4-receiver module etc.Calibrate AE sensor adopts the lead titanate piezoelectric ceramics transducer, and resonance frequency is chosen in 100KHz between the 300KHz, calibrate AE sensor is fixed on the shell of bus duct, and contact interface is filled couplant vaseline, fixes sensor by stationary installation.Overstep the extreme limit because of temperature rise or because than the flexural deformation of forceful electric power power or when damage at bus duct, discharge the elastic wave of transient state, convert the acoustic emission signal of bus duct to electric signal by piezoelectric ceramic transducer, output signal is amplified by built-in prime amplifier.As shown in Figure 2, amplifying signal is by hardware filtering device filtering electrical noise, mechanical noise and external environment noise, by the signal after the multi-channel high-speed synchronous collecting card collection amplification filtering, adopt finite impulse response digital filtering software program that the bus duct acoustic emission signal is carried out the digital filtering de-noising by digital signal processing module again, the parameter that affects filtering performance comprises respond style, method for designing, filtering exponent number, frequency characteristic, amplitude characteristic etc.Data after filtering processed are carried out characteristic parameter extraction and parameter assay, judge whether bus duct is out of shape or damages.
The result of digital signal processing module analyzing and processing is transmitted into monitor terminal by the Zigbee wireless transport module.Radio receiving transmitting module adopts the high integration transceiving device based on the Zigbee agreement; its MAC layer and PHY layer protocol meet the 802.15.4 standard; work in the 2.4GHz frequency range; the Zigbee receiver module is delivered to display terminal with the data that receive and is shown in real time; start immediately warning function in case detect the bus bar fault; in time take measures protection distribution line and equipment.
Above-described embodiment only is exemplary illustration principle of the present utility model and effect thereof, but not is used for restriction the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and above-described embodiment is modified and changed.Therefore, right protection scope of the present utility model should be take the scope of claims as foundation.
Claims (1)
1. bus duct running status Wireless real-time monitoring system, its principal character is, at least comprise: the calibrate AE sensor of built-in prime amplifier, signal processing and transmitter module, receiver module, this system is fixed on calibrate AE sensor on the shell of bus duct, by to the sensor output signal acquisition process, extract characteristic parameter and analyze and judge whether bus duct is out of shape or damages, and analysis processing result is sent to monitor terminal real time on-line monitoring running status by the Zigbee wireless transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243805 CN202916243U (en) | 2012-05-29 | 2012-05-29 | Bus duct operating condition real-time wireless monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243805 CN202916243U (en) | 2012-05-29 | 2012-05-29 | Bus duct operating condition real-time wireless monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916243U true CN202916243U (en) | 2013-05-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243805 Expired - Lifetime CN202916243U (en) | 2012-05-29 | 2012-05-29 | Bus duct operating condition real-time wireless monitoring system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202916243U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267510A (en) * | 2018-02-08 | 2018-07-10 | 南京林业大学 | Wooden component health monitoring systems and method |
| CN114910756A (en) * | 2022-05-07 | 2022-08-16 | 镇江西门子母线有限公司 | Insulation performance evaluation method and system for low-voltage bus duct |
| CN115236452A (en) * | 2022-06-29 | 2022-10-25 | 镇江易拓电气有限公司 | Intelligent monitoring system for online running state of flexibly networking bus duct |
-
2012
- 2012-05-29 CN CN 201220243805 patent/CN202916243U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267510A (en) * | 2018-02-08 | 2018-07-10 | 南京林业大学 | Wooden component health monitoring systems and method |
| CN108267510B (en) * | 2018-02-08 | 2023-10-24 | 南京林业大学 | Wood member health monitoring system and method |
| CN114910756A (en) * | 2022-05-07 | 2022-08-16 | 镇江西门子母线有限公司 | Insulation performance evaluation method and system for low-voltage bus duct |
| CN114910756B (en) * | 2022-05-07 | 2023-08-18 | 镇江西门子母线有限公司 | Insulation performance evaluation method and system for low-voltage bus duct |
| CN115236452A (en) * | 2022-06-29 | 2022-10-25 | 镇江易拓电气有限公司 | Intelligent monitoring system for online running state of flexibly networking bus duct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |