CN202677826U - Audio fuzzy identification circuit used for industrial monitoring equipment - Google Patents
Audio fuzzy identification circuit used for industrial monitoring equipment Download PDFInfo
- Publication number
- CN202677826U CN202677826U CN 201220324232 CN201220324232U CN202677826U CN 202677826 U CN202677826 U CN 202677826U CN 201220324232 CN201220324232 CN 201220324232 CN 201220324232 U CN201220324232 U CN 201220324232U CN 202677826 U CN202677826 U CN 202677826U
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- audio
- monitoring equipment
- conversion circuit
- industrial monitoring
- identification circuit
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Abstract
The utility model relates to an audio fuzzy identification circuit used for industrial monitoring equipment, comprising an audio processor, wherein the audio processor is connected with an on-chip RAM and ROM, a GPIO module and an AD conversion circuit through a data bus, wherein the GPIO module is connected with an E2PROM through an I2C bus, the input end of the AD conversion circuit is connected with the signal output end of an operation amplifier through an audio line, and the signal input end of the operation amplifier is connected with the signal output end of a pickup through the audio line. The audio fuzzy identification circuit can transmit undistorted audio signals to a monitoring room through using a different audio compression ratio technology under a communication condition with a variable Baud rate, without adding any communication equipment and through fully utilizing a well-site existing 485 radio station.
Description
Technical field
The utility model belongs to the watch-dog technical field, relates to a kind of telecommunication audio identification equipment of Oil/gas Well applicable industry watch-dog, the audio frequency fuzzy diagnosis circuit in especially a kind of 485 telecommunication audio frequency monitoring equipments that are applied to industrial monitoring equipment.
Background technology
Oil/gas Well belongs to special industry, and the various watch-dogs that are applied to require explosion-proof.Industrial environment is abominable in addition, corrosion resistivity.It is open-air that Oil/gas Well often is in the north, and winter temperature is about-30 degree.And gas well relatively disperses, and personnel can not accomplish round-the-clock Real Time Monitoring to well site gas leakage.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned prior art, a kind of audio frequency fuzzy diagnosis circuit that is applied to industrial monitoring equipment is provided, this circuit need not increase any communication facilities, take full advantage of existing 485 radio station, well site, but under the communication conditions of variable baud rate, can use the undistorted sound signal of different audio compression rate technical transmission to Control Room.
The purpose of this utility model solves by the following technical programs:
This audio frequency fuzzy diagnosis circuit that is applied to industrial monitoring equipment comprises audio process, and described audio process is connected with RAM﹠amp on the sheet by data bus; ROM, GPIO module and analog to digital conversion circuit; Described GPIO module is connected with E2PROM by the I2C bus, and the input end of analog to digital conversion circuit is connected with the signal output part of operational amplifier by tone frequency channel wire, and the signal input part of described operational amplifier is connected with the signal output part of acoustic pickup by tone frequency channel wire.
Above-mentioned audio process is the DSP device.
Audio identification circuit of the present utility model is by adding the audio identification function on the telecommunication sound collection transmitting, monitoring terminal.When audio process identifies the sound that gathers and is well site natural gas leakage sound, will produce the warning model.When this audio frequency transmitter was accessed, the audio frequency transmitter can upload to the pulpit with alerting signal.And can send to order to determine whether well site gas leakage sound is passed back to the pulpit by host computer.The utility model need not increase any communication facilities, can take full advantage of existing 485 radio station, well site.
Description of drawings
Fig. 1 is the connection block diagram of audio frequency fuzzy diagnosis circuit application of the present utility model in industrial monitoring equipment;
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
Referring to Fig. 1, this kind of the present utility model is applied to the audio frequency fuzzy diagnosis circuit of industrial monitoring equipment, comprises RAM﹠amp on audio process 1, the sheet; ROM2, GPIO module 3, E2PROM7, analog to digital conversion circuit 8, operational amplifier 9 and acoustic pickup 10; The signal output part of acoustic pickup 10 is connected by the signal input part of tone frequency channel wire with operational amplifier 9, the output terminal of operational amplifier 9 is connected by the input end of tone frequency channel wire with analog to digital conversion circuit 8, the output terminal of analog to digital conversion circuit 8 links to each other with audio process 1 by data bus, and audio process 1 links to each other with RAM%ROM2 on the sheet by data bus.Audio process 1 is connected with the GPIO3 module by data bus, and GPIO3 links to each other with E2PROM7 by the I2C bus.Audio process 1 of the present utility model is the DSP device.
Principle of work of the present utility model is as follows:
The sound signal that acoustic pickup 10 comes up collection is sent in the analog to digital conversion circuit 8 after sending into operational amplifier 9 amplifications, and the signal after will changing by analog to digital conversion circuit 8 is sent into and carried out the fuzzy diagnosis processing in the audio process 1, judges whether to send warning.
Claims (2)
1. audio frequency fuzzy diagnosis circuit that is applied to industrial monitoring equipment, it is characterized in that: comprise audio process (1), described audio process (1) is connected with RAM﹠amp on the sheet by data bus; ROM(2), GPIO module (3) and analog to digital conversion circuit (8); Described GPIO module (3) is connected with E2PROM(7 by the I2C bus), the input end of analog to digital conversion circuit (8) is connected with the signal output part of operational amplifier (9) by tone frequency channel wire, and the signal input part of described operational amplifier (9) is connected with the signal output part of acoustic pickup (10) by tone frequency channel wire.
2. the described audio frequency fuzzy diagnosis circuit that is applied to industrial monitoring equipment according to claim 1, it is characterized in that: described audio process (1) is the DSP device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324232 CN202677826U (en) | 2012-07-05 | 2012-07-05 | Audio fuzzy identification circuit used for industrial monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220324232 CN202677826U (en) | 2012-07-05 | 2012-07-05 | Audio fuzzy identification circuit used for industrial monitoring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677826U true CN202677826U (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220324232 Expired - Lifetime CN202677826U (en) | 2012-07-05 | 2012-07-05 | Audio fuzzy identification circuit used for industrial monitoring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600111A (en) * | 2017-11-06 | 2018-01-19 | 郑州铁路局郑州通信段 | A kind of alarm device system |
-
2012
- 2012-07-05 CN CN 201220324232 patent/CN202677826U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600111A (en) * | 2017-11-06 | 2018-01-19 | 郑州铁路局郑州通信段 | A kind of alarm device system |
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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: 20130116 |
|
| CX01 | Expiry of patent term |