TWI382366B - Alarm system - Google Patents
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- TWI382366B TWI382366B TW97140145A TW97140145A TWI382366B TW I382366 B TWI382366 B TW I382366B TW 97140145 A TW97140145 A TW 97140145A TW 97140145 A TW97140145 A TW 97140145A TW I382366 B TWI382366 B TW I382366B
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Description
本發明係有關於一種警報系統，特別係有關於一種具有可撓性壓力感測器之警報系統。The present invention relates to an alarm system, and more particularly to an alarm system having a flexible pressure sensor.
一般常見的門窗感測器(window sensor)大多是在門或窗戶的邊緣上裝設麥克風，並可藉由麥克風將感測到聲音訊號轉換成對應的電流訊號。由於門窗被打開或破裂的聲音具有特定頻率，因此可透過麥克風將聲音訊號轉換成電流訊號後，再經過一濾波器濾出該特定頻率訊號，藉以判斷門窗是否被打開或是遭到破壞。此外，亦可透過偵測室內的空氣壓力變化，藉以判斷門窗是否被打開或是遭到破壞。Generally, the common window sensor is equipped with a microphone on the edge of the door or window, and the sensed sound signal is converted into a corresponding current signal by the microphone. Since the sound of the door window being opened or broken has a specific frequency, the sound signal can be converted into a current signal through the microphone, and then the filter is filtered out of the specific frequency signal to determine whether the door and window are opened or damaged. In addition, it is also possible to detect whether the door and window are opened or damaged by detecting changes in the air pressure in the room.
另一種習知的感測方式係將兩條金屬導線相鄰設置，當門窗受到搖晃或震動時，兩條導線會互相接觸導通並觸發警報器。然而，此種設計方式並無法準確地判斷門窗搖晃或震動的原因及其受破壞的程度，故常常會使警報系統產生誤報(false alarms)的情形。Another conventional sensing method is to place two metal wires adjacent to each other. When the doors and windows are shaken or shaken, the two wires will be in contact with each other and trigger the alarm. However, this design method cannot accurately determine the cause of the shaking or vibration of the door and the window and the degree of damage thereof, so the alarm system often causes false alarms.
如前所述，一般感測器之感測原理不外乎利用感測磁場、震動、聲音頻率、壓力等方式，其中常見的壓力感測器雖可透過微機電技術(MEMS)製造以達到微型化之目的，但其仍具有非透明以及價格昂貴等缺點。As mentioned above, the sensing principle of the general sensor is nothing more than the use of sensing magnetic field, vibration, sound frequency, pressure, etc., among which the common pressure sensor can be manufactured through micro-electromechanical technology (MEMS) to achieve micro The purpose of theization, but it still has the disadvantages of being non-transparent and expensive.
另一方面，有鑑於傳統的感測器不具可撓性，且無法 附著於具有曲面的物體上，因此如何提供一種能增進實用性與功能性的感測器以及警報系統始成為一重要課題。On the other hand, in view of the fact that traditional sensors are not flexible and cannot Attached to objects with curved surfaces, how to provide a sensor and alarm system that enhances practicality and functionality has become an important issue.
為了克服習知問題點，本發明之一實施例提供一種警報系統，包括一處理單元、一警報器以及一透明之壓力感測器。前述壓力感測器披覆於一物體表面並且具有可撓性，當壓力感測器受到一外力撞擊時會傳遞一撞擊參數訊號至處理單元，處理單元則根據前述撞擊參數訊號傳遞一警報訊號至警報器。In order to overcome the conventional problems, an embodiment of the present invention provides an alarm system including a processing unit, an alarm, and a transparent pressure sensor. The pressure sensor is coated on an object surface and has flexibility. When the pressure sensor is impacted by an external force, an impact parameter signal is transmitted to the processing unit, and the processing unit transmits an alarm signal according to the impact parameter signal to Alarm.
於一實施例中，前述壓力感測器披覆於物體之一內側表面或者一外側表面。In an embodiment, the pressure sensor is coated on one of the inner side surface or the outer side surface of the object.
於一實施例中，前述壓力感測器設置於兩個物體的相鄰表面之間。In one embodiment, the aforementioned pressure sensor is disposed between adjacent surfaces of two objects.
於一實施例中，前述物體之表面為一曲面。In an embodiment, the surface of the object is a curved surface.
於一實施例中，前述壓力感測器完全覆蓋於物體表面。In one embodiment, the aforementioned pressure sensor completely covers the surface of the object.
於一實施例中，前述壓力感測器之面積小於前述物體表面之面積。In one embodiment, the area of the pressure sensor is smaller than the area of the surface of the object.
於一實施例中，前述物體為玻璃材質，例如強化玻璃、退火玻璃或防彈玻璃。In an embodiment, the object is made of glass, such as tempered glass, annealed glass or bulletproof glass.
於一實施例中，前述物體為一古蹟、畫作或展覽品。In one embodiment, the object is a monument, a painting, or an exhibit.
於一實施例中，前述警報系統更包括兩個壓力感測器，分別披覆於前述物體之一內側表面以及一外側表面。In one embodiment, the alarm system further includes two pressure sensors respectively covering one of the inner side surface and the outer side surface of the object.
於一實施例中，前述壓力感測器係以無線傳輸方式傳 遞撞擊參數訊號至處理單元。In one embodiment, the aforementioned pressure sensor is transmitted by wireless transmission. Handle the parameter signal to the processing unit.
於一實施例中，前述處理單元係以無線傳輸方式傳遞警報訊號至警報器。In an embodiment, the processing unit transmits the alarm signal to the alarm device in a wireless transmission manner.
於一實施例中，前述壓力感測器為一壓阻式壓力感測器。In one embodiment, the pressure sensor is a piezoresistive pressure sensor.
於一實施例中，前述壓力感測器包括複數個壓力感測單元，且上述壓力感測單元以陣列方式分佈於物體表面。In one embodiment, the pressure sensor includes a plurality of pressure sensing units, and the pressure sensing units are distributed in an array on the surface of the object.
於一實施例中，前述撞擊參數訊號包含每一壓力感測單元之電阻值以及每一壓力感測單元於物體表面上之位置座標值。In one embodiment, the impact parameter signal includes a resistance value of each pressure sensing unit and a position coordinate value of each pressure sensing unit on the surface of the object.
於一實施例中，前述處理單元係根據撞擊參數訊號得知外力撞擊之強度、區域形狀或面積大小。In one embodiment, the processing unit is configured to determine the intensity, region shape, or area size of the external force impact based on the impact parameter signal.
於一實施例中，當前述撞擊參數訊號持續一段特定時間時，處理單元傳遞警報訊號至警報器。In an embodiment, when the impact parameter signal continues for a certain period of time, the processing unit transmits an alarm signal to the alarm.
於一實施例中，當前述撞擊參數訊號於一預設時間內之發生次數大於一特定次數時，處理單元傳遞警報訊號至警報器。In an embodiment, when the number of occurrences of the impact parameter signal in a predetermined time is greater than a specific number of times, the processing unit transmits an alarm signal to the alarm.
於一實施例中，當前述壓力感測器受到外力撞擊而形成斷路時，處理單元傳遞警報訊號至警報器。In an embodiment, when the pressure sensor is struck by an external force to form an open circuit, the processing unit transmits an alarm signal to the alarm.
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。The above described objects, features, and advantages of the invention will be apparent from the description and appended claims
首先請參閱第1圖，本發明一實施例之警報系統100 主要包括一透明之壓力感測器110、一處理單元120以及一警報器130。前述壓力感測器110例如為一壓阻式壓力感測器(Piezoresistive Pressure Sensor)，其具有可撓性並且披覆於一物體G之表面S1(例如一玻璃窗戶表面)，前述處理單元120則電性連接壓力感測器110和警報器130，上述警報器130例如為一蜂鳴器(buzzer)。First, please refer to FIG. 1 , an alarm system 100 according to an embodiment of the present invention. The utility model mainly comprises a transparent pressure sensor 110, a processing unit 120 and an alarm 130. The pressure sensor 110 is, for example, a Piezoresictive Pressure Sensor, which has flexibility and is applied to the surface S1 of an object G (for example, a glass window surface), and the processing unit 120 is The pressure sensor 110 and the alarm 130 are electrically connected, and the alarm 130 is, for example, a buzzer.
當物件G受到外力撞擊時，壓力感測器110會因受力而導致內部電阻值改變，此時壓力感測器110會傳遞一撞擊參數訊號至處理單元120，接著處理單元120便可根據該撞擊參數訊號判斷是否送出一對應之警報訊號至警報器130，藉以驅動警報器130發出警報。應了解的是，前述壓力感測器110可透過傳輸導線或以無線傳輸的方式傳遞該撞擊參數訊號至處理單元120；同理，前述處理單元220亦可透過傳輸導線或以無線傳輸的方式傳遞該警報訊號至警報器130。When the object G is subjected to an external force, the pressure sensor 110 changes the internal resistance value due to the force. At this time, the pressure sensor 110 transmits an impact parameter signal to the processing unit 120, and then the processing unit 120 can The impact parameter signal determines whether a corresponding alarm signal is sent to the alarm 130 to drive the alarm 130 to issue an alarm. It should be understood that the foregoing pressure sensor 110 can transmit the impact parameter signal to the processing unit 120 through a transmission line or wirelessly. Similarly, the processing unit 220 can also transmit through a transmission line or wirelessly. The alarm signal is sent to the alarm 130.
請繼續參閱第1圖，於本實施例中之物體G可為一門或窗戶，前述壓力感測器110則呈扁平狀並且附著於物體G之表面S1上。應了解的是，前述壓力感測器110係包含有複數個壓力感測單元111，其中該等壓力感測單元111係以陣列方式分佈於物體G之表面S1上，但也可以非陣列方式分佈於物體G表面S1，藉以有效偵測物體G表面S1的受力情形。Referring to FIG. 1 , the object G in the embodiment may be a door or a window, and the pressure sensor 110 is flat and attached to the surface S1 of the object G. It should be understood that the pressure sensor 110 includes a plurality of pressure sensing units 111, wherein the pressure sensing units 111 are distributed in an array on the surface S1 of the object G, but may also be distributed in an array manner. The surface S1 of the object G is used to effectively detect the force of the surface S1 of the object G.
如前所述，當壓力感測器110感測到門窗遭受外力撞擊時，會傳遞一撞擊參數訊號至處理單元120，其中該撞 擊參數訊號包含每一個壓力感測單元111之電阻值及其分別位於物體G表面上之位置座標值，如此一來處理單元120便可根據該撞擊參數訊號而得知外力撞擊的強度、撞擊區域形狀及其面積大小等資訊，藉以決定是否驅動警報器130發出警報。As described above, when the pressure sensor 110 senses that the door and window are subjected to an external force impact, an impact parameter signal is transmitted to the processing unit 120, wherein the collision The parameter signal includes the resistance value of each of the pressure sensing units 111 and the position coordinate values respectively located on the surface of the object G, so that the processing unit 120 can know the intensity of the external force impact and the impact area according to the impact parameter signal. Information such as shape and size of the area to determine whether to drive the alarm 130 to issue an alarm.
需特別說明的是，前述壓力感測器110除了可設置於物體G之表面S1(如第2A圖所示)，亦可設置在相反於表面S1之另一表面S2(如第2B圖所示)；換言之，可選擇性地將壓力感測器110披覆於物體G之內側或外側表面。或者，亦可在物體G的外側及內側表面S1、S2上分別設置一壓力感測器110(如第2C圖所示)，藉以提升感測的靈敏度。此外，亦可將壓力感測器110夾合於兩個物體G的相鄰表面之間(如第2D圖所示)，以避免壓力感測器110受外力撞擊而損壞。於一實施例中，前述物體G之材質可為強化玻璃、退火玻璃或防彈玻璃，前述壓力感測器110之面積可小於物體G的表面S1、S2，或者壓力感測器110之面積亦可完全覆蓋住物體G之表面S1、S2。It should be particularly noted that the pressure sensor 110 may be disposed on the surface S1 of the object G (as shown in FIG. 2A), or may be disposed on the other surface S2 opposite to the surface S1 (as shown in FIG. 2B). In other words, the pressure sensor 110 can be selectively applied to the inner or outer surface of the object G. Alternatively, a pressure sensor 110 (shown in FIG. 2C) may be respectively disposed on the outer and inner surfaces S1 and S2 of the object G to enhance the sensitivity of the sensing. In addition, the pressure sensor 110 may be sandwiched between adjacent surfaces of the two objects G (as shown in FIG. 2D) to prevent the pressure sensor 110 from being damaged by an external force. In an embodiment, the material of the object G may be tempered glass, annealed glass or bulletproof glass. The area of the pressure sensor 110 may be smaller than the surfaces S1 and S2 of the object G, or the area of the pressure sensor 110 may be The surface S1, S2 of the object G is completely covered.
由於本實施例中的壓力感測器110具有透明且可撓之特性，因此不會遮蔽住物體G，且能廣泛地附著於任何具有曲面之物體上。舉例而言，本發明可將透明且具可撓性之壓力感測器110披覆於古蹟、畫作或展覽品等不希望被觸摸或者易碎之物體表面上(如第3圖所示)，藉以有效偵測外力撞擊或異常之震動，並可即時地發出警報以防止其遭到竊取或破壞。Since the pressure sensor 110 in the present embodiment has a transparent and flexible property, the object G is not shielded and can be widely attached to any object having a curved surface. For example, the present invention can illuminate a transparent and flexible pressure sensor 110 on a surface of an object that is not desired to be touched or fragile, such as a monument, a picture, or an exhibit (as shown in FIG. 3). In order to effectively detect external shock or abnormal vibration, and immediately issue an alarm to prevent it from being stolen or destroyed.
由於壓力感測器110所發出之撞擊參數訊號係包含每一壓力感測單元111的電阻值及其對應的位置座標值，因此處理單元120可根據該撞擊參數訊號得知外力撞擊之強度、位置及撞擊區域面積形狀。此外，根據撞擊參數訊號中的撞擊位置以及撞擊次數頻率等資訊，更可進一步地評估受外力撞擊的嚴重性以及威脅程度，其中當遭受連續性的外力撞擊時，處理單元120會隨即送出警報訊號至警報器130，藉以驅動警報器130發出警報；相反地，當壓力感測器110所感測到的外力撞擊時間短暫或僅為偶發事件時，則處理單元120只記錄撞擊參數訊號而不會啟動警報器130，藉此可減少誤報的情形發生。Since the impact parameter signal sent by the pressure sensor 110 includes the resistance value of each pressure sensing unit 111 and its corresponding position coordinate value, the processing unit 120 can know the strength and position of the external force impact according to the impact parameter signal. And the shape of the impact area. In addition, according to the impact position in the impact parameter signal and the frequency of the impact frequency, the severity of the impact by the external force and the degree of threat can be further evaluated, wherein the processing unit 120 will immediately send an alarm signal when subjected to a continuous external force impact. To the alarm 130, the alarm 130 is driven to issue an alarm; conversely, when the external force impact time sensed by the pressure sensor 110 is short or only an incident, the processing unit 120 only records the impact parameter signal and does not start. The alarm 130 can thereby reduce the occurrence of false alarms.
舉例而言，當該撞擊參數訊號持續一段特定時間，或者於一預設時間內之發生次數大於一特定次數時，處理單元120便會發出警報訊號至警報器130。另一種情形是當撞擊力量過大而導致壓力感測器110受到損壞時，壓力感測器110內部會形成斷路而產生極大的電阻值，此時處理單元120同樣會根據撞擊參數訊號而發出一對應之警報訊號至警報器130，藉以驅動警報器130發出警報。For example, when the impact parameter signal continues for a certain period of time, or the number of occurrences in a predetermined time is greater than a certain number of times, the processing unit 120 sends an alarm signal to the alarm 130. In another case, when the impact force is too large and the pressure sensor 110 is damaged, the pressure sensor 110 may form an open circuit to generate an extremely large resistance value. At this time, the processing unit 120 also sends a corresponding signal according to the impact parameter signal. The alarm signal is sent to the alarm 130 to drive the alarm 130 to issue an alarm.
綜上所述，本發明提供一種警報系統，其中藉由在一物體表面披覆一透明且具有可撓性之壓力感測器，不僅可適用於任何形狀之物體，並可藉此偵測出受到外力撞擊之強度、位置以及撞擊區域的面積、形狀等資訊。此外，本發明可進一步地根據撞擊的次數頻率來評估受外力撞擊的嚴重性以及威脅程度，同時能減少誤報的情形發生，進而 可大幅提升其功能性與實用性。In summary, the present invention provides an alarm system in which a transparent and flexible pressure sensor is coated on the surface of an object, and is applicable not only to objects of any shape but also to detecting Information such as the strength, position, and the area and shape of the impact area. In addition, the present invention can further evaluate the severity of the impact by the external force and the degree of threat according to the frequency of the number of impacts, and at the same time reduce the occurrence of false alarms, and further Can greatly enhance its functionality and practicality.
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內，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。While the invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention. Those skilled in the art having the ordinary skill in the art can 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.
100‧‧‧警報系統100‧‧‧Alarm system
110‧‧‧壓力感測器110‧‧‧pressure sensor
111‧‧‧壓力感測單元111‧‧‧ Pressure sensing unit
120‧‧‧處理單元120‧‧‧Processing unit
130‧‧‧警報器130‧‧‧Alarm
G‧‧‧物體G‧‧‧ objects
S1、S2‧‧‧表面S1, S2‧‧‧ surface
第1圖表示本發明一實施例之警報系統示意圖；第2A~2B圖表示一壓力感測器設置於一物體表面之示意圖；第2C圖表示在一物體內、外側表面分別設置壓力感測器之示意圖；第2D圖表示一壓力感測器設置於兩物體相鄰表面間之示意圖；以及第3圖表示壓力感測器披覆於一展覽品表面之示意圖。1 is a schematic view showing an alarm system according to an embodiment of the present invention; 2A-2B is a schematic view showing a pressure sensor disposed on an object surface; and FIG. 2C is a view showing a pressure sensor disposed inside and outside the object; 2D is a schematic view showing a pressure sensor disposed between adjacent surfaces of two objects; and FIG. 3 is a schematic view showing a pressure sensor covering a surface of an exhibit.
100‧‧‧警報系統100‧‧‧Alarm system
110‧‧‧壓力感測器110‧‧‧pressure sensor
111‧‧‧壓力感測單元111‧‧‧ Pressure sensing unit
120‧‧‧處理單元120‧‧‧Processing unit
130‧‧‧警報器130‧‧‧Alarm
G‧‧‧物體G‧‧‧ objects
S1‧‧‧表面S1‧‧‧ surface
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| TW97140145A TWI382366B (en) | 2008-10-20 | 2008-10-20 | Alarm system |
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| TW97140145A TWI382366B (en) | 2008-10-20 | 2008-10-20 | Alarm system |
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| TW201017584A TW201017584A (en) | 2010-05-01 |
| TWI382366B true TWI382366B (en) | 2013-01-11 |
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| TWI385639B (en) * | 2010-06-23 | 2013-02-11 | Universal Cement Corp | Flexible electronic piezoresistive instrument |
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| JPH0620164A (en) * | 1990-11-16 | 1994-01-28 | Burle Technol Inc | Intrusion detector |
| TWM316455U (en) * | 2007-03-14 | 2007-08-01 | Inventec Appliances Corp | Monitoring system |
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| JPH0620164A (en) * | 1990-11-16 | 1994-01-28 | Burle Technol Inc | Intrusion detector |
| TWM316455U (en) * | 2007-03-14 | 2007-08-01 | Inventec Appliances Corp | Monitoring system |
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| 游智傑,"透明電極與聚偏二氟乙烯添加鋯鈦酸鉛奈米陶瓷於可撓性元件之研究", 國立臺灣科技大學,2007年6月 * |
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| Publication number | Publication date |
|---|---|
| TW201017584A (en) | 2010-05-01 |
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