CN202256610U - Digital audio track circuit monitoring device - Google Patents
Digital audio track circuit monitoring device Download PDFInfo
- Publication number
- CN202256610U CN202256610U CN 201120349420 CN201120349420U CN202256610U CN 202256610 U CN202256610 U CN 202256610U CN 201120349420 CN201120349420 CN 201120349420 CN 201120349420 U CN201120349420 U CN 201120349420U CN 202256610 U CN202256610 U CN 202256610U
- Authority
- CN
- China
- Prior art keywords
- audio track
- track circuit
- digital audio
- input end
- isolator
- 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 - Lifetime
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model relates to a digital audio track circuit monitoring device, which comprises a high-impedance isolator, an electric isolator, an analog front end processor, an analog-to-digital (AD) converter, a digital signal processor, a data communication unit and a personal computer (PC), and is characterized in that the input end of the high-impedance isolator is connected with digital audio track circuit equipment, the output end of the high-impedance isolator is connected with the input end of the electric isolator, the output end of the electric isolator is connected with the input end of the analog front end processor, the output end of the analog front end processor is connected with the input end of the AD converter, the output end of the AD converter is connected with the input end of the digital signal processor, and the output end of the digital signal processor is connected with the PC through the data communication unit. The digital audio track circuit monitoring device has the advantages that the real-time on-line monitoring of digital audio track circuits can be realized, in addition, the influence on the audio track circuit equipment can be minimized, the collection safety and the reliability are improved, and the measurement precision is also ensured.
Description
Technical field
The utility model relates to monitoring device, is a kind of digital audio track circuit monitoring device specifically.
Background technology
The digital audio track circuit is a kind of track circuit standard of widespread use in the track traffic, has inspection orbit occupancy and train-ground communication function, is widely used in the whistle control system of quasi-moving block standard.The maintenance of digital audio track circuit employing usually regularly detects replacing and passive maintenance dual mode, but this two mode is all undesirable on cost and efficient: detection regularly is difficult to find some accidental and catastrophic discontinuityfailures; Periodic replacement then increases maintenance cost greatly; And passive maintenance is just in a kind of passive means that influence under traffic safety and the efficient situation.Therefore it is very necessary to design a kind of digital audio track circuit monitoring device that can real time on-line monitoring
Summary of the invention
The purpose of the utility model provides a kind of digital audio track circuit monitoring device that can real time on-line monitoring.
For realizing above-mentioned purpose; The utility model adopts following technical scheme: a kind of digital audio track circuit monitoring device; Comprise high resistant isolator, electrical isolator, analog front end processor, AD converter, digital signal processor, data communication units and PC; The input end that it is characterized in that the high resistant isolator is connected with the digital audio track circuit arrangement; The output terminal of high resistant isolator is connected with the input end of electrical isolator, and the output terminal of electrical isolator is connected with the input end of analog front end processor, and the output terminal of analog front end processor is connected with the input end of AD converter; The output terminal of AD converter is connected with the input end of digital signal processor, and the output terminal of digital signal processor is connected with PC through data communication units.
Further, said digital audio track circuit monitoring device also is provided with self duty detecting device, and said self duty detecting device is connected with digital signal processor.
The utility model adopts high-barrier from acquisition technique and Digital Signal Processing, not only can be to digital audio frequency track circuit real time on-line monitoring, and can minimize influence to audio frequency track circuit equipment; Both improve the security and the reliability of gathering, guaranteed measuring accuracy again.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 leaves and the electrical isolation circuit diagram for high-barrier.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described, but this embodiment should not be construed as the restriction to the utility model.
Digital audio track circuit monitoring device shown in the figure; Comprise high resistant isolator 1, electrical isolator 2, analog front end processor 3, AD converter 4, digital signal processor 5, data communication units 6 and PC 7; The input end of high resistant isolator 1 is connected with the digital audio track circuit arrangement; The output terminal of high resistant isolator 1 is connected with the input end of electrical isolator 2; The output terminal of electrical isolator 2 is connected with the input end of analog front end processor 3; The output terminal of analog front end processor 3 is connected with the input end of AD converter 4, and the output terminal of AD converter 4 is connected with the input end of digital signal processor 5, and the output terminal of digital signal processor 5 is connected with PC 7 through data communication units 6.
Preferred embodiment is: in such scheme, also be provided with self duty detecting device 8, said self duty detecting device 8 is connected with digital signal processor 5.
Make the content of detailed description in this instructions, belong to the those skilled in the art known prior art.
Claims (2)
1. digital audio track circuit monitoring device; Comprise high resistant isolator (1), electrical isolator (2), analog front end processor (3), AD converter (4), digital signal processor (5), data communication units (6) and PC (7); It is characterized in that: the input end of high resistant isolator (1) is connected with the digital audio track circuit arrangement; The output terminal of high resistant isolator (1) is connected with the input end of electrical isolator (2); The output terminal of electrical isolator (2) is connected with the input end of analog front end processor (3); The output terminal of analog front end processor (3) is connected with the input end of AD converter (4), and the output terminal of AD converter (4) is connected with the input end of digital signal processor (5), and the output terminal of digital signal processor (5) is connected with PC (7) through data communication units (6).
2. digital audio track circuit monitoring device according to claim 1 is characterized in that: also be provided with self duty detecting device (8), said self duty detecting device (8) is connected with digital signal processor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120349420 CN202256610U (en) | 2011-09-19 | 2011-09-19 | Digital audio track circuit monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120349420 CN202256610U (en) | 2011-09-19 | 2011-09-19 | Digital audio track circuit monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256610U true CN202256610U (en) | 2012-05-30 |
Family
ID=46117829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120349420 Expired - Lifetime CN202256610U (en) | 2011-09-19 | 2011-09-19 | Digital audio track circuit monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256610U (en) |
-
2011
- 2011-09-19 CN CN 201120349420 patent/CN202256610U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |