TW201016195A - Flexible sound transducer device - Google Patents

Flexible sound transducer device Download PDF

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Publication number
TW201016195A
TW201016195A TW97142035A TW97142035A TW201016195A TW 201016195 A TW201016195 A TW 201016195A TW 97142035 A TW97142035 A TW 97142035A TW 97142035 A TW97142035 A TW 97142035A TW 201016195 A TW201016195 A TW 201016195A
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Taiwan
Prior art keywords
sound
collecting device
sound collecting
soft
flexible substrate
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TW97142035A
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Chinese (zh)
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TWI410234B (en
Inventor
Shi-Ing Huang
Long-Cheng Cheng
Show-Hwai Chou
Dar-Ming Chiang
Shu-Ru Lin
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Ind Tech Res Inst
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Abstract

A flexible sound transducer device includes at least a sound transducer unit. The sound transducer unit includes a flexible substrate forming a cavity, a sound impedance conduction diaphragm disposed on the cavity, a ring surrounding the sound impedance conduction diaphragm, and a microphone embedded at a side of the cavity. Specifically, the sound impedance conduction diaphragm and a receiving surface of the microphone have an angle of 30 to 90 degrees.

Description

.201016195 九、發明說明: 【發明所屬之技術領域】 本發明係有關於-種集音裝置, 用於氣喘監測設備之軟性集音裝置。、”有關於一種應 【先前技術】 來 4=患= _ 由於肺部的收縮與擴張,促使體外 乳時’ ,。當氣流流經氣管、支氣管以及肺囊等呼== 振動而發出的聲響。由於呼吸道張力和呼吸…_ 異,使得氣流的流速會有差異,使得娜音 •度等頻譜特性也會有差別。藉此,肺音可^聲日強 種類,作做為分析·,紅t與否的參考。〃辨識肺音 然而,聽診器的聲音傳送機制對於u 訊:有放大的效果,對於較高頻率之聲音訊號則=的 ^而δ,麟_病患是否發作,是依據哮喘 =(約400帅因此,容易造成診斷上的誤判。此外,紗 盗軟管產生的駐波現象,也可能造成聲音的失真,造成二 斷的誤判。因此’聽診器的使用必須是訓練有素和呈^ =專家或醫生’-般民眾不㈣由聽診器來判別病患氣 %疋否發作。 【發明内容】 5 .201016195 本發明提供一種軟 集音單元包括一軟性I本曰衣£包括-集音單元,該 以及-收音哭〜、+、板、—聲音阻抗傳顏、—繃膜環 ", 則述軟性基板具有—凹型腔體,,、十、蓉立 阻抗傳遞膜覆蓋於凹 U則述聲音 抗傳遞膜周® 麵環設置於聲音阻.201016195 IX. Description of the Invention: [Technical Field] The present invention relates to a sound collecting device and a soft sound collecting device for an asthma monitoring device. "There is a kind of [previous technique] to 4 = suffering = _ due to the contraction and expansion of the lungs, promoting the external milk time." When the airflow flows through the trachea, bronchi, and lung sac, etc. Because the airway tension and breathing are different, the flow velocity of the airflow will be different, which will make the spectral characteristics of Nayin Degree different. Therefore, the lung sound can be used as an analysis, red t or not reference. 〃 Identify lung sounds However, the sound transmission mechanism of the stethoscope for u news: has a magnifying effect, for higher frequency audio signals = ^ and δ, Lin _ patients with seizures, is based on asthma = (about 400 handsome, therefore, it is easy to cause misjudgment in diagnosis. In addition, the standing wave phenomenon generated by the yarn sling hose may also cause distortion of the sound, resulting in a misjudgment of the second break. Therefore, the use of the stethoscope must be well trained and ^^Expert or doctor's general population does not (4) The stethoscope is used to discriminate whether the patient's gas is sputum or not. [Invention] 5 .201016195 The present invention provides a soft sound collecting unit including a soft I 曰衣£include-set Sound unit, The sound and the crying ~, +, board, - sound impedance transmission, - stretch film ring, the soft substrate has a concave cavity,, ten, Rong Li impedance transmission film covered in the concave U to speak the sound Anti-transfer film perimeter® face ring set to sound resistance

述收音器設置於凹型腔固:::性基板上。前 面和聲音阻抗傳遞膜邊中收音器之一收音 30。〜90。。 、H傾斜角’該傾斜角介於 於一實施例中 於一實施例申 環氧樹脂。 ^述聲音阻抗傳_為複合材料。 别迷聲音阻抗傳遞膜含有麵纖維與 ❹ 於一實施例中, 於一實施例中, 於一實施例中, 於一實施例中, 凹型腔體之前述側邊 !!迷聲音阻抗傳遞膜含有碳纖 :述繃膜環為複合材料。 月’j述鏰膜環含有碳纖。 前述收音器為駐極式麥克風, 0 0 内嵌於 前述收音器 於一實施例中 iOO-bOOHz。 的收音頻率範圍為 别述軟性集音袭 於一實施例中 單元。 置更包括複數個集音 有矽膠、聚胺基甲酸 有一氧化秒,且二氧 於-實_中,”軟性基极 月曰、聚尿脂或其混合物或級合物。 於-實施财,前述軟性基核 化石夕的添加量介於〇wt%〜3〇wt% 6 .201016195 於一實施例中,前述軟性基板的硬度範圍介於shore A-20 〜70。 本發明之軟性集音裝置可緊密貼附於使用者皮膚,因 此使用者不會產生不適感,特別適用於長期監測睡眠或臥 床的使用者。 為使本發明之上述目的、特徵、和優點能更明顯易懂, 下文特舉較佳實施例並配合所附圖式做詳細說明。 ^ 【實施方式】 第1圖為依照本發明之一實施例之氣喘監測設備之系 統方塊圖。如第1圖所示之氣喘監測設備100主要包.括一 軟性集音裝置101、一訊號處理單元103、一分析單元105 以及一警示單元108。其中,軟性集音裝置101的輸出耦 接至訊號處理單元103,訊號處理單元103耦接至分析單 元105,分析單元105則耦接警示單元108。 _ 在本實施例中,軟性集音裝置101可以用來偵測一使 用者之呼吸音訊訊號,並且將偵測到的呼吸音訊訊號傳送 至訊號處理單元103進行訊號處理。而分析單元105則接 收經由訊號處理單元103處理過的呼吸音訊訊號來進行聲 紋分析,以判斷使用者的呼吸是否出現異常。當分析單元 105發現使用者的呼吸發生異常時,可藉由警示單元108 發出警示訊息,以通知醫護和家護人員。在一些選擇實施 例中,前述警示單元108可以是一蜂鳴器。此外,訊號處 理單元103和分析單元105之間的訊號傳遞,則可以利用 7 .201016195 無線訊號傳輸的方式來進行。 第2A圖為本發明一實施例之軟性集音裝置之示意 圖。請參照第2A圖’本發明所提供的軟性集音裝置2〇〇 包括一軟性基板212 ’在軟性基板212上可以配置有一個 或多個集音單元202。在本實施例中,軟性基板212的材 質可以是矽膠、聚胺基甲酸脂、聚尿脂或其混合物,或是 以其組合而成。此外,在軟性基板212中亦可加入二氧化 φ 矽以調整軟性基板212的硬度,其中二氧化矽的添加量約 為Owt%〜30wt% ’軟性基板212的硬度範圍則介於Sh0re A-20〜70,使其可以緊密貼附於使用者的皮膚上。 需特別說明的是,前述軟性集音裝置2〇〇可以貼附在 使用者身上的不同部位,用以感測使用者的呼吸音訊訊 號。例如,當軟性集音裝置2〇〇貼附於使用者的脖子,則 可以感測氣管音訊號。若將教性集音裝置2〇〇貼附於附於 使用者的前胸右上肺腔' 中肺腔、下肺腔,則可以分別感 ❹ 測支氣管(bronchial)、支氣管肺囊(br〇nch0vesicular)、肺囊 (vesicular)的呼吸聲訊號。 第2B圖繪示為本發明一實施例之集音單元2〇2剖面 圖。接著請-併參照f 2A、2B ,在軟性基板212上形 成有多個碗狀的凹型腔體214,其中每個凹型腔體214上 覆蓋有-聲音阻抗傳遞膜216,其中聲音阻抗傳遞膜216 大致平行於XY平面(如圖2B所示),並可依據接觸表面的 音訊而產生振動,其作動原理類似人耳中的耳膜。 於本實施例中,前述聲音阻抗傳遞膜216的材料^採 8 201016195 用複合材料,例如是碳纖或是由玻璃纖維與環氧樹脂麫熱 壓而成,由於這些材料具有較佳的剛性與敏感度,可提^ 人體呼吸音訊的傳遞效率。此外,在阻抗傳遞膜216的巧 圍配置有一繃膜環218,用以將阻抗傳遞膜216固定在車^ 性基板212上,其中繃膜環218的材料可以是複合材料= 例如用碳纖來製成。 在第2B圖中,一收音器22〇係内嵌於凹型腔體214 ❹之一側邊,其可以是駐極式(Electret)麥克風,收音頻率範 圍則約為100-1500HZ,由於駐極式麥克風具有超薄、寬 頻、高指向性、低環境背景噪音以及高感度等特色,可用 ' .以感測使用者的呼吸音訊訊號。應了解的是,前述收音器 220的收音面221和聲音阻抗傳遞膜216之間具有—傾件 角Θ,其中30°<θ<90。。此外,收音器220的輸出訊號則可 透過導線W耦接至如圖1中的訊號處理單元103。藉此, 軟性集音裝置101可將感測到的呼吸音訊訊號傳送至訊號 參 處理單元1〇3以進行後續的訊號處理。 綜上所述,本發明提供一種軟性集音裝置,包含一咬 數個集音單元’其中在母個集音單元上方設有一聲音阻抗 傳遞膜,並且在集音單元之一側設有收音器(例如駐極式麥 克風),前述收音器的收音面和聲音阻抗傳遞膜之間形成一 傾斜角,藉此可縮減軟性集音裝置的厚度以達到微型化之 目的’同時能產生良好之收音效果。由於本發明之軟性华 音裝置可緊密貼附於使用者皮膚上,因此不影響使用者= 日常作息,❹jit合居家照護或者長期料_或臥床的 9 201016195 使用者。 雖然本發明以前述之較佳實施例揭露如上,然其並非 用以限定本發明。本發明所屬技術領域中具有通常知識 者,在不脫離本發明之精神和範圍内,當可做些許之更動 與潤飾。因此本發明之保護範圍當視後附之申請專利範圍 所界定者為準。The radio is disposed on the concave cavity::: substrate. The front surface and the sound impedance transfer film are included in one of the microphones in the edge of the film 30. ~90. . , H tilt angle 'The tilt angle is between an embodiment and an epoxy resin in one embodiment. ^Sound impedance transmission _ is a composite material. In one embodiment, in one embodiment, in one embodiment, the aforementioned side of the concave cavity has a sound impedance transfer film containing Carbon fiber: The stretch film ring is a composite material. The month's 鏰 film ring contains carbon fiber. The aforementioned sound receiver is an electret microphone, and 0 0 is embedded in the aforementioned sound receiver in an embodiment iOO-bOOHz. The range of the received audio frequency ranges from the soft set to the unit in one embodiment. The setting includes a plurality of collections of tannin extract, polyamic acid for one oxidation seconds, and dioxin in the middle, "soft base ruthenium, polyurethane or a mixture or conjugate thereof. The soft base nucleus is added in an amount of 〇wt%~3〇wt% 6. 201016195. In one embodiment, the hardness of the soft substrate ranges from shore A-20 to 70. The soft sound collecting device of the present invention It can be closely attached to the user's skin, so the user does not feel uncomfortable, and is especially suitable for long-term monitoring of sleep or bedridden users. In order to make the above objects, features, and advantages of the present invention more obvious, the following The preferred embodiment is described in detail with reference to the accompanying drawings. [Embodiment] Fig. 1 is a block diagram of a system of an asthma monitoring device according to an embodiment of the present invention, and an asthma monitoring device as shown in Fig. 1. The main package includes a soft sound collecting device 101, a signal processing unit 103, an analyzing unit 105, and an alerting unit 108. The output of the soft sound collecting device 101 is coupled to the signal processing unit 103, and the signal processing unit 103 is coupled. Connect The analyzing unit 105 is coupled to the alerting unit 108. In the present embodiment, the soft sound collecting device 101 can be used to detect a user's breathing audio signal and transmit the detected respiratory audio signal to The signal processing unit 103 performs signal processing, and the analyzing unit 105 receives the respiratory audio signal processed by the signal processing unit 103 to perform voiceprint analysis to determine whether the user's breathing is abnormal. When the analyzing unit 105 finds the user's breathing When an abnormality occurs, a warning message may be sent by the alert unit 108 to notify the medical care and home care personnel. In some alternative embodiments, the alert unit 108 may be a buzzer. Further, the signal processing unit 103 and the analysis unit 105 The signal transmission between the two can be performed by means of the wireless transmission of 7.201016195. Fig. 2A is a schematic diagram of a soft sound collecting apparatus according to an embodiment of the present invention. Please refer to FIG. 2A for the soft set provided by the present invention. The sound device 2A includes a flexible substrate 212'. One or more sound collecting units 202 may be disposed on the flexible substrate 212. In this embodiment, the material of the flexible substrate 212 may be tantalum glue, polyurethane, polyurethane or a mixture thereof, or a combination thereof. Further, a dioxide φ may be added to the flexible substrate 212.矽 to adjust the hardness of the flexible substrate 212, wherein the amount of cerium oxide added is about Owt% ~ 30wt% 'The hardness range of the flexible substrate 212 is between Sh0re A-20~70, so that it can be closely attached to the user On the skin, it should be noted that the soft sound collecting device 2 can be attached to different parts of the user to sense the user's breathing audio signal. For example, when the soft sound collecting device 2 is posted Attached to the user's neck, you can sense the tracheal sound signal. If the vocalization device 2 〇〇 is attached to the lung cavity and the lower lung cavity of the right upper lung cavity of the user, the bronchial and bronchopulmonary sacs (br〇nch0vesicular) can be sensed separately. ), the respiratory sound signal of the vesicular. 2B is a cross-sectional view of the sound collecting unit 2〇2 according to an embodiment of the present invention. Next, and referring to f 2A, 2B, a plurality of bowl-shaped concave cavities 214 are formed on the flexible substrate 212, wherein each of the concave cavities 214 is covered with a sound impedance transmission film 216, wherein the acoustic impedance transmission film 216 It is roughly parallel to the XY plane (as shown in Fig. 2B), and can generate vibration according to the sound of the contact surface, and the actuation principle is similar to the eardrum in the human ear. In the present embodiment, the material of the sound impedance transmission film 216 is made of a composite material, such as carbon fiber or hot-pressed by glass fiber and epoxy resin, because these materials have better rigidity and sensitivity. Degree, can improve the transmission efficiency of human respiratory audio. In addition, a film ring 218 is disposed on the periphery of the impedance transmission film 216 for fixing the impedance transmission film 216 to the vehicle substrate 212. The material of the film ring 218 may be a composite material = for example, made of carbon fiber. to make. In Fig. 2B, a tuner 22 is embedded in one side of the concave cavity 214, which may be an electret microphone, and the audio frequency range is about 100-1500 Hz, due to the electret The microphone has ultra-thin, wide frequency, high directivity, low ambient background noise and high sensitivity. It can be used to sense the user's breathing audio signal. It should be understood that the sound pickup surface 221 of the aforementioned sound pickup 220 and the sound impedance transmission film 216 have a tipping angle Θ of 30 ° < θ < 90. . In addition, the output signal of the microphone 220 can be coupled to the signal processing unit 103 of FIG. 1 through the wire W. Thereby, the soft sound collecting device 101 can transmit the sensed breathing audio signal to the signal processing unit 1〇3 for subsequent signal processing. In summary, the present invention provides a soft sound collecting device comprising a plurality of sound collecting units, wherein a sound impedance transmitting film is disposed above the mother sound collecting unit, and a sound collector is disposed on one side of the sound collecting unit. (for example, an electret microphone), an angle of inclination is formed between the sound receiving surface of the aforementioned sound receiver and the sound impedance transmitting film, whereby the thickness of the soft sound collecting device can be reduced to achieve the purpose of miniaturization, and at the same time, a good sound effect can be produced. . Since the soft sound device of the present invention can be closely attached to the skin of the user, it does not affect the user = daily routine, ❹jit home care or long-term material _ or bedridden 9 201016195 users. While the invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention. It is within the spirit and scope of the invention to make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10 201016195 :【圖式簡單說明】 第1圖表示本發明一實施例之氣喘監測系統之系統方 塊圖; 第2A圖表示本發明一實施例之軟性集音裝置示意 圖;以及 第2B圖表示本發明一實施例之集音單元剖面圖。 _ 【主要元件符號說明】 氣喘監測設備100 軟性集音裝置101 訊號處理單元103 分析單元105 警示單元108 軟性集音裝置200 集音單元202 > 軟性基板21210 201016195 : [Simplified description of the drawings] Fig. 1 is a block diagram showing a system of an asthma monitoring system according to an embodiment of the present invention; Fig. 2A is a view showing a soft sound collecting device according to an embodiment of the present invention; and Fig. 2B is a view showing the present invention. A cross-sectional view of a sound collecting unit of an embodiment. _ [Main component symbol description] Asthma monitoring device 100 Soft sound collecting device 101 Signal processing unit 103 Analysis unit 105 Warning unit 108 Soft sound collecting device 200 Sound collecting unit 202 > Flexible substrate 212

凹型腔體214 聲音阻抗傳遞膜216 繃膜環218 收音器220 導線W 11Concave cavity 214 Acoustic impedance transfer film 216 Stretch film ring 218 Sounder 220 Wire W 11

Claims (1)

201016195 十、申請專利範圍: 1. 一種軟性集音裝置,包括: 一集音單元,包括: 一軟性基板,具有一凹型腔體; 一聲音阻抗傳遞膜,覆蓋於該凹型腔體上; 一繃膜環,設置於該聲音阻抗傳遞膜周圍,用以將該 阻抗傳遞膜固定於該軟性基板上;以及 參 一收音器,設置於該凹型腔體之一侧邊,其中該收音 器具有一收音面,該收音面和該聲音阻抗傳遞膜之間具有 一傾斜角,且該傾斜角介於30°〜90°。 2. 如申請專利範圍第1項所述之軟性集音裝置,其中 該聲音阻抗傳遞膜為複合材料。 3. 如申請專利範圍第1項所述之軟性集音裝置,其中 該聲音阻抗傳遞膜含有玻璃纖維與環氧樹脂。 4. 如申請專利範圍第1項所述之軟性集音裝置,其中 該聲音阻抗傳遞膜含有碳纖。 5. 如申請專利範圍第1項所述之軟性集音裝置,其中 該繃膜環為複合材料。 6. 如申請專利範圍第1項所述之軟性集音裝置,其中 該繃膜環含有碳纖。 7. 如申請專利範圍第1項所述之軟性集音裝置,其中 該收音器為駐極式麥克風,内嵌於該凹型腔體之該側邊。 8. 如申請專利範圍第1項所述之軟性集音裝置,其中 該收音器的收音頻率範圍為l〇〇-1500Hz。 12 .201016195 9. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性集音裝置更包括複數個集音單元。 10. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性基板含有矽膠。 11. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性基板含有聚胺基甲酸脂。 12. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性基板含有聚尿脂。 13. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性基板含有二氧化矽,且該二氧化矽的添加量介於 . Owt% 〜30wt%。 14. 如申請專利範圍第1項所述之軟性集音裝置,其中 該軟性基板的硬度範圍介於shore A-20〜70。 參 13201016195 X. Patent application scope: 1. A soft sound collecting device comprising: a sound collecting unit comprising: a flexible substrate having a concave cavity; an acoustic impedance transmitting film covering the concave cavity; a membrane ring disposed around the sound impedance transmitting film for fixing the impedance transmitting film on the flexible substrate; and a reference sound receiver disposed on one side of the concave cavity, wherein the sound receiver has a sound receiving surface The sound receiving surface and the sound impedance transmitting film have an inclination angle, and the inclination angle is between 30° and 90°. 2. The soft sound collecting device of claim 1, wherein the sound impedance transmitting film is a composite material. 3. The soft sound collecting device according to claim 1, wherein the sound impedance transmitting film comprises glass fiber and epoxy resin. 4. The soft sound collecting device according to claim 1, wherein the sound impedance transmitting film contains carbon fibers. 5. The soft sound collecting device of claim 1, wherein the stretch film ring is a composite material. 6. The soft sound collecting device of claim 1, wherein the stretch film ring contains carbon fibers. 7. The soft sound collecting device of claim 1, wherein the sound receiver is an electret microphone embedded in the side of the concave cavity. 8. The soft sound collecting device of claim 1, wherein the sound frequency of the sound receiver ranges from 1 〇〇 to 1500 Hz. The soft sound collecting device according to claim 1, wherein the soft sound collecting device further comprises a plurality of sound collecting units. 10. The soft sound collecting device of claim 1, wherein the flexible substrate comprises silicone. 11. The soft sound collecting device of claim 1, wherein the flexible substrate comprises a polyurethane. 12. The soft sound collecting device according to claim 1, wherein the flexible substrate contains polyurethane. 13. The soft sound collecting device according to claim 1, wherein the flexible substrate contains cerium oxide, and the cerium oxide is added in an amount of from Owt% to 30% by weight. 14. The soft sound collecting device according to claim 1, wherein the flexible substrate has a hardness ranging from shore A-20 to 70. Reference 13
TW97142035A 2008-10-31 2008-10-31 Flexible sound transducer device TWI410234B (en)

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