CN202974427U - Noise monitor - Google Patents
Noise monitor Download PDFInfo
- Publication number
- CN202974427U CN202974427U CN 201220607738 CN201220607738U CN202974427U CN 202974427 U CN202974427 U CN 202974427U CN 201220607738 CN201220607738 CN 201220607738 CN 201220607738 U CN201220607738 U CN 201220607738U CN 202974427 U CN202974427 U CN 202974427U
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- amplifier
- processing unit
- noise
- central processing
- direct current
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- Expired - Fee Related
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Abstract
The utility model relates to noise monitoring equipment and especially relates to a noise monitor. The noise monitor is characterized in that a sound sensor is connected with a pre-amplifier; the pre-amplifier is connected with a frequency meter weight amplifier and a power supply correction circuit respectively; the frequency meter weight amplifier is connected with a direct current demodulation amplifier and a central processor; the direct current demodulation amplifier is connected with the central processor through a digital to analog conversion circuit; the central processor is also connected with a digital display tube, an RS485 interface and the digital to analog conversion circuit respectively; the digital to analog conversion circuit is connected with a transmitter. The size of the monitor of the utility model is small. Power dissipation is low. Configuration usage is simple. Plug and play performance is achieved. Precision is high. Versatility is strong and a cost performance ratio is high.
Description
Technical field
The utility model relates to noise monitor equipment, is specially a kind of noise-monitoring equipment.
Background technology
Present walkaway, what adopt is the structure that collection, wiring transmit, the dispatching center processes record, its defective is data transmission pollution deterioration, site dispersion, wiring, wasting manpower and material resources, equipment volume is large, power consumption is high, configuration use to send out mix, need manual monitoring, data scattered, be unfavorable for that the user accesses in real time and historical data, the scene all can't obtain specifically data at that time.
Summary of the invention
The utility model is for above technical matters, provides that a kind of volume is little, low in energy consumption, simple, plug and play is used in configuration, precision is high, the high noise-monitoring equipment that becomes of highly versatile, cost performance.
Concrete technical scheme of the present utility model is as follows:
noise-monitoring equipment, by sound transducer, prime amplifier, frequency weighted amplifier, the direct current detector amplefier, central processing unit, the power supply correcting circuit, D/A converting circuit, the RS485 interface, transmitter, digital display tube forms, it is characterized in that: sound transducer connects prime amplifier, prime amplifier is rate of connections weighted amplifier and power supply correcting circuit respectively, frequency weighted amplifier connects the direct current detector amplefier, central processing unit, the direct current detector amplefier connects central processing unit by D/A converting circuit, central processing unit separately connects respectively digital display tube, the RS485 interface, D/A converting circuit, D/A converting circuit connects transmitter.
noise is by the sound transducer access arrangement, pass through prime amplifier, frequency weighted amplifier two-stage prime amplifier, frequency weighted amplifier amplifies, process at central processing unit, the direct current detector amplefier, D/A converting circuit converts signal to digital signal transfers to central processing unit, central processing unit carries out data message to pass through D/A converting circuit after computing, the RS485 interface, digital display tube passes, RS485 Interface realization data realize connected network communication, D/A converting circuit is reduced to again simulating signal with signal and sends by transmitter, digital display tube demonstrates concrete sound source achievement data.
On-the-spot noise data harvester and digital display tube collect intelligent monitoring terminal with on-the-spot noise data in real time, data arrive Surveillance center by Internet Transmission, complete unified management, data storage, also be presented in real time on outdoor digital display tube, by the utility model with noise decibel data, the sound audio data, device datas etc. are dealt into monitoring and scheduling central dispatching center and realize information managements such as reception, storage, demonstration, report printing output to noise data, and support real time data and historical data to read.The utility model supports that on-the-spot noise decibel value shows in real time, compatible user's supervisory system, to fix a point all-weather monitoring of noise, alarm limit can be set to the neighbourhood noise warning that exceeds standard, this monitor precision is high, highly versatile, high its outstanding feature that becomes of cost performance, is widely used in that arterial traffic noise monitoring, Boundary Noise detection, construction site walkaway, city regional environment noise detect, social living environment's walkaway monitoring and assessment.
Figure of description
Fig. 1 is structural representation of the present utility model.
Wherein, 1---sound transducer, 2---prime amplifier, 3---frequency weighted amplifier, 4---direct current detector amplefier, 5---central processing unit, 6---power supply correcting circuit, 7---D/A converting circuit, 8---RS485 interface, 9---transmitter, 10---digital display tube.
Specific embodiment
Below in conjunction with specific embodiments and the drawings, this patent is described further.
noise-monitoring equipment, by sound transducer, prime amplifier, frequency weighted amplifier, the direct current detector amplefier, central processing unit, the power supply correcting circuit, D/A converting circuit, the RS485 interface, transmitter, digital display tube forms, sound transducer connects prime amplifier, prime amplifier is rate of connections weighted amplifier and power supply correcting circuit respectively, frequency weighted amplifier connects the direct current detector amplefier, central processing unit, the direct current detector amplefier connects central processing unit by D/A converting circuit, central processing unit separately connects respectively digital display tube, the RS485 interface, D/A converting circuit, D/A converting circuit connects transmitter.
noise is by the sound transducer access arrangement, pass through prime amplifier, frequency weighted amplifier two-stage prime amplifier, frequency weighted amplifier amplifies, process at central processing unit, the direct current detector amplefier, D/A converting circuit converts signal to digital signal transfers to central processing unit, central processing unit carries out data message to pass through D/A converting circuit after computing, the RS485 interface, digital display tube passes, RS485 Interface realization data realize connected network communication, D/A converting circuit is reduced to again simulating signal with signal and sends by transmitter, digital display tube demonstrates concrete sound source achievement data.
Claims (1)
1. noise-monitoring equipment, by sound transducer, prime amplifier, frequency weighted amplifier, the direct current detector amplefier, central processing unit, the power supply correcting circuit, D/A converting circuit, the RS485 interface, transmitter, digital display tube forms, it is characterized in that: sound transducer connects prime amplifier, prime amplifier is rate of connections weighted amplifier and power supply correcting circuit respectively, frequency weighted amplifier connects the direct current detector amplefier, central processing unit, the direct current detector amplefier connects central processing unit by D/A converting circuit, central processing unit separately connects respectively digital display tube, the RS485 interface, D/A converting circuit, D/A converting circuit connects transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607738 CN202974427U (en) | 2012-11-17 | 2012-11-17 | Noise monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607738 CN202974427U (en) | 2012-11-17 | 2012-11-17 | Noise monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974427U true CN202974427U (en) | 2013-06-05 |
Family
ID=48515486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220607738 Expired - Fee Related CN202974427U (en) | 2012-11-17 | 2012-11-17 | Noise monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974427U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606209A (en) * | 2016-03-14 | 2016-05-25 | 南京铁道职业技术学院 | System for monitoring indoor noise |
| CN110807901A (en) * | 2019-11-08 | 2020-02-18 | 西安联丰迅声信息科技有限责任公司 | Non-contact industrial abnormal sound detection method |
-
2012
- 2012-11-17 CN CN 201220607738 patent/CN202974427U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606209A (en) * | 2016-03-14 | 2016-05-25 | 南京铁道职业技术学院 | System for monitoring indoor noise |
| CN110807901A (en) * | 2019-11-08 | 2020-02-18 | 西安联丰迅声信息科技有限责任公司 | Non-contact industrial abnormal sound detection method |
| CN110807901B (en) * | 2019-11-08 | 2021-08-03 | 西安联丰迅声信息科技有限责任公司 | Non-contact industrial abnormal sound detection method |
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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: 20130605 Termination date: 20131117 |