CN200979455Y - A split-type environmental noise monitoring terminal - Google Patents
A split-type environmental noise monitoring terminal Download PDFInfo
- Publication number
- CN200979455Y CN200979455Y CN 200620159104 CN200620159104U CN200979455Y CN 200979455 Y CN200979455 Y CN 200979455Y CN 200620159104 CN200620159104 CN 200620159104 CN 200620159104 U CN200620159104 U CN 200620159104U CN 200979455 Y CN200979455 Y CN 200979455Y
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- measuring head
- cabinet
- microphone
- monitoring terminal
- module
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Abstract
The utility model relates to a city area environmental noise monitoring instrument, in particular to a split environmental noise monitoring terminal which comprises a microphone (1), a preamplifier (2), a gage pin (3), a windshield (4), an acoustic rainproof shield (5), a hollow cradling piece (6) and a cabinet (7). The gage pin (3) is movably mounted at one end of the hollow cradling piece (6), and the other end of the hollow cradling piece (6) is movably mounted at the side face of the cabinet (7). A signal conditioning module and an acquisition processing module are mounted in the gage pin (3) whose output wire goes through the inner cavity of the hollow cradling piece (6) and goes to the cabinet (7). A data transmission module and a power module are mounted in the cabinet (7). A launching aerial is mounted outside the cabinet. The gage pin of the utility model is installed by splitting the measuring part and the launching part; thereby the utility model has stable operation of the overall system, good measuring directivity and convenient installation and maintenance.
Description
Technical field:
The utility model relates to a kind of instrument that is used for the city regional environment noise monitoring, particularly a kind of separating environment noise monitoring terminal.
Background technology:
Usually environment noise monitoring terminal is installed in the outside of buildings or is installed near the road, is used for measuring and monitoring the noise condition of certain limit.Several such monitoring ranges just can cover entire city, environment noise monitoring terminal on each monitoring point all is transferred to this The Surroundings in Cities monitoring station with the noise figure of monitoring at any time and handles, reports to the police and add up, thereby forms the city regional environment noise monitoring system of a networking.From forming on the structure, environment noise monitoring terminal all is made up of microphone, pre-amplifying module, signal condition module, acquisition processing module, data transmission module (GPRS/CDMA module), power module and emitting antenna etc.During use, microphone changes noise into electric signal, after prime amplifier carries out impedance conversion and amplifies, flow to conditioning module again and carry out the weighted processing, signal behind the weighted is still simulating signal, simulating signal becomes digital signal behind acquisition processing module, the digital signal that reflects the noise value at last is transferred to telecommunication system by the data transmission module wireless transmit, adds up, shows and store after monitoring master station receives digital noise signal.
At present, for can make environment noise monitoring terminal immediately to noise measure, transmission and easy for installation, all be above each module all to be integrated be installed in the metal box, wherein microphone and prime amplifier extend upwardly the outlet external application in the noise of measuring surrounding environment, as shown in Figure 1.When above-mentioned environment noise monitoring terminal is installed, generally all be that whole box body is fixedly mounted on the outdoor wall, this mounting means exists following defective and deficiency:
1, because the analog electrical signal in microphone and the prime amplifier is very faint, microphone and prime amplifier range data transport module and emitting antenna are very near, even shield, when transport module emission work, still can cause interference, thereby influence the measuring accuracy of system the faint analog electrical signal in microphone and the prime amplifier.
2, according to national standard " city regional environment noise measuring method " (GB/T 14623) and national standard " acoustic enviroment noise measuring method " (GB/T 3222) requirement, when outdoor measurement, measurement point " distance of the buildings of leaving one's post is not less than 1 meter ".At present, being integrated in when installing in the casing, all is to paste wall to install, and therefore, realize that request of national standard is very difficult.
3, " microphone is not less than 1.2m apart from the vertical range on ground to national standard (GB/T 14623, GB/T 3222) though requirement only needed when measuring." but at present, destroy with preventing for antitheft when mounted, all be that casing is installed in higher position.Because microphone and prime amplifier extend upwardly outside the outlet, measure and point to up, when higher, make the noise source that is positioned at the below be in the insensitive zone of microphone in the installation site easily, this also can cause measuring error.
The utility model content:
In order to address the above problem, the utility model provides a kind of separates measure portion and radiating portion, measures accurately, meets the separating environment noise monitoring terminal of national standard.
The technical solution of the utility model is: separating environment noise monitoring terminal comprises microphone, prime amplifier, measuring head, hurricane globe, sound absorption rain cover, hollow sting bar and cabinet, measuring head is movably installed in an end of hollow sting bar, the other end of hollow sting bar is fixed on the side of cabinet or is directly installed on the outdoor wall, measuring head to the distance of wall more than 1 meter; Cabinet can be directly installed on the outdoor wall or be fixed on other place.Microphone and prime amplifier are packed in the below of measuring head, it measure to point to down (or by adjusting it is pointed to towards other direction), in the inside of measuring head signal condition module and acquisition processing module are housed, measuring head is output as digital signal, the output lead of measuring head and power lead lead to cabinet from the inside of hollow hollow sting bar, data transmission module and power module only are housed in cabinet, and cabinet is equipped with emitting antenna outward.Between measuring head and microphone and prime amplifier, the sound absorption rain cover is installed, can protects microphone not watered pouring by rainwater.Hurricane globe is enclosed within the outside of microphone, can reduce the measuring error that blast causes in little wind speed (less than 5m/s).Because microphone, prime amplifier, signal condition module and acquisition processing module are packed in the measuring head, measuring head range transmission system is far away on the one hand, the output of measuring head is digital signal on the other hand, and this mode has strengthened the antijamming capability of measuring system greatly.The measurement of microphone is pointed to down, and when higher, the noise source on ground all is in the sensitive measurement zone of microphone in the installation site.Measuring head is easy to realize the required distance of national standard by the extension of hollow sting bar.
The beneficial effects of the utility model are: because measuring head separates measure portion and radiating portion, make total system also have characteristics such as runnability is stable, measurement directive property is good, I﹠M is convenient.
Description of drawings
Below in conjunction with the drawings and specific embodiments an affected step of the utility model is illustrated:
Fig. 1 is the circuit relationships block scheme of existing environment noise monitoring terminal,
Fig. 2 is a structural representation of the present utility model,
Fig. 3 is a circuit relationships block scheme of the present utility model.
Embodiment
Referring to accompanying drawing 2,3, separating environment noise monitoring terminal comprises microphone 1, prime amplifier 2, measuring head 3, hurricane globe 4, sound absorption rain cover 5, hollow sting bar 6 and cabinet 7.Measuring head 3 is movably installed in an end of hollow sting bar 6, and the other end of hollow sting bar 6 is fixed on the side of cabinet 7 or is directly installed on the outdoor wall, and measuring head 3 arrives the distance of wall more than 1 meter; Cabinet 7 can be directly installed on the outdoor wall or be fixed on other place.Microphone 1 and prime amplifier 2 are packed in the below of measuring head 3, and it is measured and points to down.The measurement of microphone 1 is pointed to down, and when higher, the noise source on ground all is in the sensitive measurement zone of microphone in the installation site.Measuring head 3 is easy to realize the required distance of national standard by the extension of hollow sting bar 6.Two cradling pieces 6 are hinged respectively with up and down for measuring head 3, can adjust the angle of measuring head 3 and cradling piece 6 by changing the length of a cradling piece 6 wherein, thereby change the directive property of measuring head 3, to satisfy the needs of measuring different objects.
In the inside of measuring head 3 signal condition module and acquisition processing module are housed, promptly all artificial circuit parts and a part of digital circuit all are encapsulated in the measuring head 3, output be digital signal.The output lead of measuring head 3 leads to cabinet 7 from the inner chamber of hollow sting bar 6, and data transmission module and power module only are housed in cabinet 7, and emitting antenna is contained in outside the cabinet 7.Because signal condition module and acquisition processing module are packed in the measuring head 3, measuring head 3 range transmission systems are far away on the one hand, and the output of measuring head 3 is digital signals on the other hand, and this mode has strengthened the antijamming capability of measuring system greatly.Sound absorption rain cover 5 is installed between measuring head 3 and microphone 1 and prime amplifier 2, can protects microphone 1 not watered pouring by rainwater.Hurricane globe 4 is enclosed within the outside of microphone 1, can reduce the measuring error that blast causes in little wind speed.
Claims (3)
1. separating environment noise monitoring terminal, it is characterized in that described monitoring terminal comprises microphone (1), prime amplifier (2), measuring head (3), hurricane globe (4), sound absorption rain cover (5), hollow sting bar (6) and cabinet (7), measuring head (3) is movably installed in an end of hollow sting bar (6), and the other end of hollow sting bar (6) is movably arranged on the side of cabinet (7) or is directly installed on the building walls; Microphone (1) and prime amplifier (2) are packed in the below of measuring head (3), and it is measured and points to down; Sound absorption rain cover (5) is installed between measuring head (3) and microphone (1) and prime amplifier (2), and hurricane globe (4) is enclosed within the outside of microphone (1); Signal condition module and acquisition processing module are equipped with in measuring head (3) inside, and the inner chamber that its output lead passes hollow sting bar (6) leads to cabinet (7), in cabinet (7) data transmission module and power module is housed, and emitting antenna is contained in outside the cabinet.
2. according to the described separating environment noise monitoring terminal of claim 1, two cradling pieces (6) are hinged respectively with up and down to it is characterized in that measuring head (3), can adjust the angle of measuring head (3) and cradling piece (6) by changing the length of a cradling piece (6) wherein, thereby change the directive property of measuring head 3.
3. according to the described separating environment noise monitoring terminal of claim 1, it is characterized in that the distance between measuring head (3) and the building walls should be more than or equal to 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159104 CN200979455Y (en) | 2006-11-18 | 2006-11-18 | A split-type environmental noise monitoring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159104 CN200979455Y (en) | 2006-11-18 | 2006-11-18 | A split-type environmental noise monitoring terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200979455Y true CN200979455Y (en) | 2007-11-21 |
Family
ID=38979836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620159104 Expired - Fee Related CN200979455Y (en) | 2006-11-18 | 2006-11-18 | A split-type environmental noise monitoring terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200979455Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300509A (en) * | 2014-05-29 | 2016-02-03 | 国网山西省电力公司电力科学研究院 | Extension rod for noise detection |
| CN109443518A (en) * | 2018-10-22 | 2019-03-08 | 中国矿业大学 | A kind of portable vehicle drag friction noise level monitor and method based on bluetooth |
-
2006
- 2006-11-18 CN CN 200620159104 patent/CN200979455Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300509A (en) * | 2014-05-29 | 2016-02-03 | 国网山西省电力公司电力科学研究院 | Extension rod for noise detection |
| CN109443518A (en) * | 2018-10-22 | 2019-03-08 | 中国矿业大学 | A kind of portable vehicle drag friction noise level monitor and method based on bluetooth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Zhiyuan Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071121 |