CN203104741U - Ear bone type sound-insulating fire-fighting earphone - Google Patents
Ear bone type sound-insulating fire-fighting earphone Download PDFInfo
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- CN203104741U CN203104741U CN 201320113375 CN201320113375U CN203104741U CN 203104741 U CN203104741 U CN 203104741U CN 201320113375 CN201320113375 CN 201320113375 CN 201320113375 U CN201320113375 U CN 201320113375U CN 203104741 U CN203104741 U CN 203104741U
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Abstract
The utility model relates to an ear bone type sound-insulating fire-fighting earphone, comprising a headset and a wireless transmission module, wherein the wireless transmission module comprises a Bluetooth module, a battery and a third generation (3G) wireless communication module; a bone vibration sensor and an omni-directional miniature microphone are arranged at the right side of the headset; an earphone loudspeaker is arranged at the left side of the headset; sound-insulating earshields are arranged outside the bone vibration sensor and the earphone loudspeaker; and a control switch is arranged on the earshield at the left side. The ear bone type sound-insulating fire-fighting earphone can be used at the seriously noisy fire-fighting and rescue places and has portability; the total weight of system hardware does not exceed 100g; the ear bone type sound-insulating fire-fighting earphone is convenient to wear; the single value noise-reducing value, detected according to Unite States Standard ANSIS3.19-1974, of noise isolation reaches 26dB; and the ear bone type sound-insulating fire-fighting earphone can continuously work for 10 hours by a carry-on battery.
Description
Technical field
The utility model relates to the otica formula sound insulation earphone that a kind of fireman wears, and is particularly a kind of at the on-the-spot fire-fighting earphone that uses of serious noisy fire fighting and rescue.
Background technology
Because the fire fighting and rescue site environment is noisy, environmental noise is more and more serious to the influence of floor manager.As the two benzene factories of Jilin Petrochemical November 13 in 2005 explosive fire accident, in the accident handling process, commanding in the rear person assigns and withdraws order, but because the having a strong impact on of environmental noise, and the branchman in hydraulic giant position can't hear the order of withdrawing that the radio station sends.The sign of blast is more and more obvious, under the urgent very much situation of situation, go to the front by commanding in the rear person at last and pass on and withdraw order, after withdrawing soon chemical plant installations promptly an explosion occurred, the part fire-fighting equipment is engulfed in a sea of flames, several front branchmans lose life narrowly.Occurred equally in " 7.16 " Dalian China Petrochemical Industry tank farm fire in 2010 because environmental noise influences on-scene communication commander's problem.The information of not hearing that environmental noise causes or the information of mishearing directly affect cammander and on-the-spot fireman's the information transmission of asking, have reduced commander's efficient, can cause the failure of rescuing in the time of more serious.So how to address this problem is the urgent task that fire brigade is faced.
Mainly there is following some problem in existing earphone: 1, skull pickup mode volume is less, and transducer and hair friction noise are difficult to eliminate; For example, the fire hat that one kind of patent CN202104288U(can be transaudient); 2, throat's pickup mode, transducer can not be fully and environment isolate, friction noise, comfort of wearing all have open defect; Patent CN2739901(intercom shakes headset with the larynx bone); Do not have the isolation environment noise when 3, listening to phonetic order, cause clearly to listen to voice; When 4, searching trapped personnel, wear earphone and cause being difficult to judge on-the-spot sound of call for help and other site environment danger sounds; 5, existing otica pickup earphone mostly is wired mode, dresses inconvenience, scratching easily; 6, bluetooth otica pickup earphone in the market, product with better effects has three, be respectively the Hz800 of Motorola, Hx1000, JAWBONE era, wherein, it is to pick up voice by protecgulum bossing contact duct that Hz800, HX1000 pick up voice signal, and such shortcoming is: if bossing can not well contact duct because wear reason, just can not well pick up voice signal, the voice signal that sends like this meeting is intermittent or sound is less.Another one is the product of JAWBONE company, its bone shake transducer that picks up voice signal is located at the cheek part, not in duct, its shortcoming is too can Yin Peidai bad etc., and reason makes main part can not well contact cheek, thereby the voice signal that causes picking up becomes not smooth, also just has influence on communication effect.
Summary of the invention
The purpose of this utility model provides a kind of fire-fighting earphone that can use at serious noisy fire fighting and rescue scene.
The purpose of this utility model is achieved through the following technical solutions: otica formula sound insulation fire-fighting earphone comprises a headphone and wireless transport module; Described wireless transport module comprises bluetooth module, battery and 3G wireless communication module; The right side of described headphone is provided with bone shake transducer and omnidirectional's mini microphone, and the left side is provided with earphone horn, at bone shake transducer and earphone horn outer setting sound insulation earmuff, a control switch is set on left side sound insulation earmuff.
The beneficial effects of the utility model: the utility model adopts said structure, after being converted into voice signal again, the vibration signal of headphone by the inner four direction of bone shake sensor acquisition duct transmit with bluetooth approach, in the opposite side earmuff, earphone horn is set, in order to play external voice order or environment sound, farthest avoided the acoustic crosstalk between vibration signal and the loudspeaker simultaneously.At bone shake transducer outer setting sound insulation earmuff, promptly adopt passive type sound insulation technology that high frequency, intermediate frequency, low-frequency noise are isolated, to guarantee that the fireman can clearly hear the external voice order.Be provided with simultaneously a switch on the earmuff of left side, with the input environment sound, weak point is pressed primary shielding environment sound to length by earphone after 3 seconds.When headset detection during to the voice signal that has outside fire-fighting command person to transmit by wireless transport module, earphone is automatic isolation environment noise, makes the phonetic order that the fireman can the clear commander of hearing; When no commander's voice signal was imported, earphone can be imported earphone by the automatic environment sound that miniature omnidirectional microphone is gathered, and is convenient to the fireman scene of searching and calls for help, experiences on-the-spot and closely voice communication.Simultaneously, adopt the otica pickup mode to guarantee the lamprophonia noiselessness that on-the-spot fireman spreads out of.Audio-frequency information between earphone and the wireless transport module adopts the bluetooth approach transmission.The utlity model has portable characteristics, the system hardware total weight is no more than 100g, wears conveniently, and the monodrome noise reduction value that noise is isolated according to Unite States Standard ANSI S3.19-1974 standard detection reaches 26dB, but utilizes the battery continuous operation of carrying 10 hours.
Description of drawings
Fig. 1 is Fig. 1 Headphone structure figure of the present utility model.
Fig. 2 is a bone shake sensor construction schematic diagram of the present utility model.
Fig. 3 is a wireless transport module structural representation of the present utility model.
Embodiment
Otica formula sound insulation fire-fighting earphone comprises a headphone 1 and wireless transport module; Described wireless transport module comprises bluetooth module 2, battery 3 and 3G wireless communication module 4; The right side of described headphone is provided with bone shake transducer 5 and omnidirectional's mini microphone 9, and the left side is provided with earphone horn 6, at bone shake transducer 5 and earphone horn 6 outer setting sound insulation earmuffs 7, a control switch 8 is set on left side sound insulation earmuff 7.
Claims (1)
1. otica formula sound insulation fire-fighting earphone comprises a headphone and wireless transport module; Described wireless transport module comprises bluetooth module, battery and 3G wireless communication module; The right side of described headphone is provided with bone shake transducer and omnidirectional's mini microphone, and the left side is provided with earphone horn, at bone shake transducer and earphone horn outer setting sound insulation earmuff, a control switch is set on left side sound insulation earmuff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113375 CN203104741U (en) | 2013-03-13 | 2013-03-13 | Ear bone type sound-insulating fire-fighting earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113375 CN203104741U (en) | 2013-03-13 | 2013-03-13 | Ear bone type sound-insulating fire-fighting earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104741U true CN203104741U (en) | 2013-07-31 |
Family
ID=48856110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113375 Expired - Fee Related CN203104741U (en) | 2013-03-13 | 2013-03-13 | Ear bone type sound-insulating fire-fighting earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600893A (en) * | 2018-07-10 | 2018-09-28 | 武汉轻工大学 | Military environments audio classification system, method and military noise cancelling headphone |
-
2013
- 2013-03-13 CN CN 201320113375 patent/CN203104741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108600893A (en) * | 2018-07-10 | 2018-09-28 | 武汉轻工大学 | Military environments audio classification system, method and military noise cancelling headphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |