1374408 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種應用三轴加速規之跌倒偵測方 法，尤其是一種藉由裝設於人體之三軸加速規所執行的跌 倒偵測方法。 【先前技術】 根據國民健康保險局的統計，意外傷害佔總死亡率 的比率已逐年增加；其中無論男性或女性老年人因跌倒意 外事故所造成的生命損害，僅次於交通意外事故，排在意 外傷害第二位。此外，由於全球性人口的老化問題，老人 . 照護已成為未來醫療產業中必然發展的重要領域；因此， 如何加速老人照護醫療科技的發展，已成為現代相當重要 的醫療防護議題之一。 更詳言之’老人跌倒比率佔總人口跌倒所造成的傷 害比率近百分之五十，嚴重者甚至會導致死亡，亦成為跌 倒傷害的最大宗事件。跌倒意外事故會造成如此重大的傷 害，在在取決於緊急醫療的時間；因此，倘若可有效債測 跌倒意外事故的發生，方可掌握送醫的「黃金時間」，以 降低傷害比率。 舉例而言，目前常見之針對跌倒意外事故的習知偵 測方法大致包含有以下數種： ' 第一種習知偵測方法，如中華民國公開第2〇〇912814 號「配戴式活動感測裝置及其方法」’該感測裝置包含一 腕錶及一感測元件，該腕錶及感測元件均設有三軸加速度 —4 一 =姿得：=勢變換與活動加速度值，且其姿 如在㈣太斷為跌’可發出警報及通知緊急救護， =丨時，必須由配戴者自行取消警報。 制开杜=上述第—種f知價測方法必須將該腕錄及感 跌倒·=於人體正確位置後，方可用以制配戴者是否 ’在執行該偵測方法時，倘若該腕錶及該感測 =^農位置不正確，將無法進行债測 ;因此，具有安 雜變:另外’該習知偵測方法係以量測身軀 值’以判斷配戴者是否跌倒，由於 息,照如姿勢改變之加速度變化等 故相當容 易產生誤判情形。 咕「第*種1知制方法，如中華民國公開第200743063 監測系統及其方法」，係利用具有三軸加 攜式資料擷取單元收集受測者之行為監測資料， 線傳輸將行為監測資料傳送至分散式資臟 、後由*散式資·服器分析行為監測資料，以產生 =測者之動作事件。若_出受測者發生異常之動作事 件’再傳送異常事件訊息至電子接收裝置。 麻:然而=述第二種f知_方法係將該可攜式資料 擷取早騎裝於人體，並感測配戴者身體姿勢及姿勢變化 所產生的加速度變化，以便輸出行為監測資料，再利用分 散式資料飼服器分析行為監測資料，用以判斷配戴者是否 跌倒；_習知侧方法僅單騎對配戴者身體姿勢變 化’用以崎配戴者是錄生異常之動作，因此 產生誤判情形。 j今勿 1374408 第一種S知偵測方法’係藉由如中華民國公告第 M337349號「人體平衡位移量測系統」，該系統包含一三 轴加速規、-減法器、一放大電路、一資料摘取卡及一電 腦。其中藉由該系統所執行之習知偵測方法，當該三轴加 速規在一段時間内移動時’可產生-訊號以記錄加速度資 料，此訊號經該減法器與該放大器處理後傳送至該資料操* 取卡轉換錢當格式，錢由該電·料算鱗製成目 形，以供判讀人體平衡狀態。 然而’上述第三種習知该測方法在藉由三轴加速規φ 記錄加速度資料後’仍必須透過該減法器、該放大電路、 該資料摘取卡及該電腦的複雜運算處理，方可判斷人體平 衡情形，故具有步驟流程複雜等缺點，且同樣容易產生誤 。第四種習知_方法’如中華民國公告第Μ336779 號「供配帶於腰部的健康管理及跌倒警示裝置」，該邀示 裝置包減理餘、監聰組、傳輸模組及警示模組^ 中藉由該警示裝置所執行的習知_方法，係利用監測模 組將使用者之運錄況訊息傳輸至處理触，當使用者跌 倒時’處理模組會接收到使用者跌倒訊息，並藉由警示模 組提出警不，或者歸傳輸馳發出簡訊通知救助單元。 而上述第四種習知偵測方法必須將警示裝置 裝於使用者腰部位置，方可降低谓測跌倒狀態之誤差，因 此，在安裝使用上受到相當限制，造成許多不便。另外， 該監測模組僅藉由_使用者之運綠況，以满使 是否有跌倒情形’而同樣容易產生誤判情形。 6 於方法，如中華民國公開第2_咖 tV ，該遙控11包括加速制11、_ 電路、按鍵輪入、啟動介面電路、 ;二中藉，器所執行的習知制方法:係利= 仃分析、計算、料及輪人輸料控辦步驟，且 區;;：:件，以達到計步、緊急呼救、跌倒通報及社 測：，上述第五種習知偵測方法主要係利用加速感 ’貝I人體所產生的加速度變化’且配合觸動電路的觸 > =產生電路啟動，再依程辆算分析以欺使用者為 =或跌倒’並透過RF收發信器發出跌倒通報；因此， =知侧方法僅為單純考慮人體所產生的加速度變化， 以=斷使用者是否有跌倒情形，故容易產生誤判情形。 、’T、上所述，上述各種可針對跌倒意外事故進行偵測 =知侧方法，大致具有安裝使用不便、_品質不佳 各易產生誤判等諸多缺點，故仍有改良之必要。 【發明内容】 本發明目的乃改良上述缺點，以提供__種應用三軸 σ、、規之跌倒_方法，可藉由被監護者因身體姿勢改變 存丨#生的力°速度變化〃及、、角度變化〃’以達到降低跌 债測誤判情形之目的。 、月人目的係提供一種應用三軸加速規之跌倒 j方法’可利用計日夺手段進一步確認先前之跌倒情形是 有誤判情形’以達到提升_品質之目的。 13744081374408 VI. Description of the Invention: [Technical Field] The present invention relates to a fall detection method using a three-axis acceleration gauge, and more particularly to a fall detection method performed by a three-axis acceleration gauge installed in a human body. [Prior Art] According to the National Health Insurance Agency, the ratio of accidental injuries to total mortality has increased year by year; among them, male or female elderly people suffer from life-related damage caused by falling accidents, second only to traffic accidents. Accidental injury second. In addition, due to the aging of the global population, the elderly have become an important area of future development in the medical industry; therefore, how to accelerate the development of medical care for the elderly has become one of the most important medical protection issues in modern times. More specifically, the rate of injury caused by the fall of the elderly population is nearly 50%. The serious ones may even lead to death and become the biggest incident of falls. A fall accident can cause such a major injury, depending on the time of emergency medical treatment. Therefore, if the effective debt test can be carried out, the "golden time" for medical treatment can be mastered to reduce the injury rate. For example, the conventional detection methods for fall accidents generally include the following: 'The first kind of conventional detection method, such as the Republic of China Public Notice No. 2 912814, "wearing activity sense Measuring device and method thereof' The sensing device comprises a wristwatch and a sensing component, and the wristwatch and the sensing component are each provided with a triaxial acceleration - 4 a = posture: = potential transformation and active acceleration value, and If the posture is (4) too broken, it can issue an alarm and notify the emergency ambulance, = 丨, the wearer must cancel the alarm by himself. If the above-mentioned first-type f-price measurement method must fall the wrist record and sense to the correct position of the human body, it can be used to determine whether the wearer is 'in the execution of the detection method, if the watch And the sense = ^ agricultural position is not correct, will not be able to carry out the debt test; therefore, there is an error: another 'this conventional detection method is to measure the body value' to determine whether the wearer falls, due to interest, It is quite easy to cause a false positive situation, such as a change in the acceleration of the posture change.第 "The first type of knowledge system, such as the Republic of China Public Publication No. 200743063 Monitoring System and Methodology", uses a three-axis portable data acquisition unit to collect behavioral monitoring data of the subject, and the line transmits behavioral monitoring data. After being transmitted to the decentralized fund, the behavior monitoring data is analyzed by the *distributed device to generate the action event of the tester. If an abnormal event occurs in the subject, the abnormal event message is transmitted to the electronic receiving device. Hemp: However, the second method is to capture the portable data and mount it on the human body, and sense the acceleration changes caused by the wearer's body posture and posture changes, so as to output behavior monitoring data. The dispersive data feeding device is used to analyze the behavior monitoring data to determine whether the wearer has fallen. _ The conventional method only changes the posture of the wearer to the wearer. Therefore, a false positive situation occurs. j今勿1374408 The first S-detection method is based on the Republic of China Announcement No. M337349 "Human Balance Displacement Measurement System", which includes a three-axis accelerometer, a subtractor, an amplifying circuit, and a Data extraction card and a computer. The conventional detection method performed by the system can generate a signal to record acceleration data when the three-axis acceleration gauge moves over a period of time, and the signal is processed by the subtractor and the amplifier and transmitted to the Data manipulation * The card is used to convert money into the format, and the money is made into a shape by the electric and material scales for interpretation of the human body balance state. However, the third conventional method described above must still pass through the subtractor, the amplifying circuit, the data extraction card, and the complicated operation of the computer after recording the acceleration data by the three-axis acceleration gauge φ. Judging the balance of the human body, it has the disadvantages of complicated steps and is equally prone to errors. The fourth method of knowledge_methods, such as the Republic of China Announcement No. 336779 "Health Management and Falling Warning Device for the Belt at the Waist", the invitation device includes the reduction, the Cong Cong Group, the transmission module and the warning module. ^ The conventional method implemented by the warning device transmits the user's recording status message to the processing touch by using the monitoring module. When the user falls, the processing module receives the user's fall message. And the warning module is used to raise the alarm, or the transmission is sent to the rescue unit to notify the rescue unit. The fourth conventional detection method described above requires that the warning device be placed at the waist position of the user to reduce the error of the measured fall state. Therefore, the installation and use are considerably limited, resulting in many inconveniences. In addition, the monitoring module is also prone to misjudgment situations only by the user's green condition to make a fall condition. 6 In the method, such as the Republic of China public 2nd coffee, the remote control 11 includes an acceleration system 11, a circuit, a button wheel, a start interface circuit, and a second method, the conventional method of performing the device:仃 Analysis, calculation, material and rotation control procedures, and zones;;:: pieces to achieve step counting, emergency call, fall notification and social test: The fifth conventional detection method mainly uses acceleration Feeling the 'acceleration change generated by the human body' and the touch of the touch circuit> = generating the circuit to start, and then analyzing the computer to make the user = or fall 'and send a fall notification through the RF transceiver; therefore , = The method of knowing the side only considers the acceleration change generated by the human body, and it is easy to produce a false positive situation if the user has a fall condition. As mentioned above, the above-mentioned various types of detections for fall accidents can be detected. There are many disadvantages such as inconvenience in installation and use, _ poor quality, and misjudgment, so there is still a need for improvement. SUMMARY OF THE INVENTION The object of the present invention is to improve the above-mentioned shortcomings, so as to provide a method for applying a triaxial σ, a fall of the gauge, and a method for changing the speed of the body due to the physical posture of the ward. The angle changes 〃 'to achieve the purpose of reducing the situation of false debts. The purpose of the monthly person is to provide a method of applying the triaxial acceleration gauge to fall. The method of using the divergence method to further confirm that the previous fall situation is a misjudgment situation is to achieve the purpose of improving the quality. 1374408
偵二目的係提供一種應用三轴加迷規之跌倒 偵測方法，可稭由主動式通報機制，以達到降低 比率之目的。 〜丨场D 根據本發㈣用三軸加速規之跌_測 下列步驟： ^3 一狀態資訊擷取步驟，係藉由至少—個三軸加 搜集被監護者因身體姿勢改變所產生的加速 變化，以獲得被監護者之狀態資訊； 又 倒條件判斷步驟，係藉由—分析監控單元判斷 該狀“毅加速錢化衫超過-跌_如檻值，談 =倒:定3.55g到3.62g之間，且利用該狀態資 、之—度·£化判斷被監護者是否能自行站立，並在判斷無 ^自仃站立後進人—料㈣，而雌能自行站立後則重 新回到該狀態資訊擷取步驟；及 一緊急通報步驟，係依據該計時狀態之結果決定是 否回傳被監護者的跌倒資訊。 【實施方式】 ，讓本發明之上述及其他目的、特徵及優點能更明 :董’下文特舉本發明之較佳實施例，並配合所附圖 式，作詳細說明如下： 清參照第1圖所示，本發明應用三軸加速規之跌倒 三^方法触可储監騎身體之適當雜裝設至少-個 加速規1卜用以隨時搜集被監護者因身體姿勢改變 產生的、、狀態資訊\詳參後續說明）；並藉由一分析監 8 控單元12針對、、狀態資訊進行分析運算處理， 被監護者是否有跌倒情形。其中： 的功運作方式及所能達成 广係屬S知技術，容不贅述。再者，市 =二大二可分為兩種’第-種三轴加速規U在； ，下可文到地力引力lg(加速度）的作用力第二 在靜止狀態下不會受到地力引力1g (加 迷又）的作用力，在如圖所干杳 當-插-m ㈡斤不之實加例中，本發明係採用 二===;外，請_第2 μ 7 # 錢 11 有 χ 軸、Υ 、、中同一軸的兩個方向分別以+和-符號予 以區別’例如：該三軸加速規U提供有χ+、χ ^ +、υ—、ζ+、z~等六個感測方向。 ’當x轴與γ軸平行於地面（即 軸輸出為〇g)，且未受到任何外力作用時，則ζ ^ 會收到lg的地心引力作用；反之钟X難Ζ軸平行於 =，丫軸之丫+、¥—感測方向會收到'1§的地“ 予以:：二、γ轴及z轴所產生的變化， 丁乂锼集破監濩者因身體姿勢改變所產生的处 =三’如第2圖所示，係揭示當被監護者有跌倒情形ς貝 加速規11之\軸、丫軸及2㈣會產生變化。· 該分析麵單元12㈣分_三軸树㈣ 12較護者；科，該分析監控單元 較佳^構於各種行動式料，例如：智料手機、. 數位助理(。DA)等，以方便監護者可 東，將1八1"°者的狀態；或者，亦可依監護者的實際需 求職=析如私12 _於躺麻ϋ。 青參…、第1及3圖所示，本發明應用三軸加速規之 到偵射法係藉由該三軸加速規η及分析監控單元12 仃以下步驟’其步驟至少包含-狀態資訊擷取步驟si 、一跌倒條件判斷步驟s 2及-緊急通報步驟s 3。 該狀’4¼¾貞取步驟S1主要係利用該分析監控單元 透過該三軸加速規u隨時搜集被監護者因身體姿勢改 ^產ΐ的Γ加速度變H、、角度變化々，以獲得被監 —之狀態資訊。如第4圖所示，係設定慣性座標之 :轴為X’軸、γ’軸及ζ’轴，該慣性座標係指地心引力的 二軸方向；人體座標之三軸為X軸、γ軸及ζ軸，該人 體座標係指該三韩加速規U的三財向（隨被監護者因 身體姿勢改變而產生變化）。因此，、、加速度變化及、、角 度變化〃可依被監護者因身體姿勢改變後，該人體座標相 對於慣性座標所產生的變化所獲得。 更洋s之’該狀態資訊搁取步驟S1較佳可區分如第 5圖所示之步驟S11及步驟S12，其中： 步驟S11係接收該三軸加速規11之三軸（χ轴、γ '^及Z轴）的加速度分|並轉換為加速度（^)，以便後 續執行步驟S12。 步驟S12係計算人體座標之三軸（X軸、γ軸及z 軸）與慣性座標之三轴（X，軸、Y’軸及Z，軸）彼此之間 的角度，舉例而言’X軸與X’轴的夾角為α，γ軸與γ， 1374408 .. 軸的失角為点’z軸與Z，軸的夾角為“如第4圖所 不），以便後續執行該跌倒條件判斷步驟S2。 藉由上述步驟S11及步驟S12，即可分別獲得、、加速 度變化"及、、，度變化"；由於上述該三轴加速規n所接 收的加速度（4)為二轴（X轴、γ轴及Z轴）之各別加 速度分里（Y，F，Z)，因此，如步驟S11，在計算失角 α、.夾角β及夾角7*前，必需事先透過歐幾里德距離公式 (如公式1所示）計算加速度（2)，其中（)係 • 代表三軸加速規11之三軸（X軸、γ軸及ζ軸）所操收 的加速度分量（g值）。另外，如步驟S12，符計算χ 軸、Υ轴及Ζ軸（人體座標）相對於χ，軸、γ，軸及軸 (慣性座標）的夾角α、夾角召及夾角^ (如公式2所 示）；夾角α、夾角冷及夾角γ的定義方式可依據表1之 規格自a丁。藉由夾角α、炎角冷及夾角γ的定義之後，即 可在不考量被監護者配戴該三軸加速規Η之角度的情況 下，找出地心引力方向，以方便被監護者安裝該彡軸加速 參 規11。 A = VFTy2+Z2 ……（公式 l) α=cos-1 C05-1 l,r = cos-]ί......(公式 2)The purpose of the second is to provide a fall detection method that uses three-axis plus the same, and the active notification mechanism can be used to achieve the purpose of reducing the ratio. ~丨场D According to this issue (4), use the three-axis acceleration gauge to drop the following steps: ^3 A state information acquisition step is to collect the accelerated changes of the ward by the body posture by at least three-axis plus To obtain the status information of the ward; and to reverse the conditional judgment step, by means of the analysis and monitoring unit to judge the shape "Yi accelerates the money shirt over-fall_such as 槛 value, talk = down: set 3.55g to 3.62g Between the use of the status of the state, the degree of time to determine whether the ward can stand on their own, and judged that there is no self-squatting after entering the person - material (four), and the female can stand back to the state after standing on their own The information acquisition step and the emergency notification step determine whether to return the ward's fall information according to the result of the chronological state. [Embodiment] The above and other objects, features and advantages of the present invention are made clear: The following is a detailed description of the preferred embodiment of the present invention, and is described in detail with reference to the accompanying drawings. As shown in FIG. 1 , the present invention applies the three-axis accelerometer's fall three ^ method to touch the body of the body. Appropriate At least one acceleration gauge 1 is used to collect the status information of the ward who is changed due to the change of body posture at any time, and the following is explained; and the analysis and operation are performed by the analysis and control unit 12 Handling whether the ward has a fall situation. Among them: the operation mode of the faculty and the ability to reach the wide-ranging S-knowledge technology are not described. In addition, the city = two big two can be divided into two kinds of 'first-three axes Acceleration gauge U;; under the force of gravity to the ground force lg (acceleration) force second in the static state will not be subjected to the force of gravity gravitation 1g (additional and other) force, as shown in the figure - m (two) jin is not the actual addition, the invention uses two ===; outside, please _ 2 μ 7 # money 11 χ axis, Υ,, the same direction of the same axis with + and - symbols Differentiate 'for example: the three-axis acceleration gauge U provides six sensing directions: χ+, χ^+, υ-, ζ+, z~, etc. 'When the x-axis and the γ-axis are parallel to the ground (ie, the axis output is 〇g), and if it is not subjected to any external force, then ζ ^ will receive the gravity of lg; otherwise, the clock X is difficult to parallel to =丫 丫 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 As shown in Figure 2, it is revealed that when the ward has a fall, the \ axis, the 丫 axis and 2 (4) of the mussel acceleration gauge 11 will change. · The analysis surface unit 12 (four) is divided into three-axis tree (four) 12 caregiver; section, the analysis monitoring unit is better constructed in various mobile materials, such as: smart mobile phone, digital assistant (.DA), etc., to facilitate The guardian can be east, and will be in the state of 1 8.1<°; or, depending on the actual needs of the guardian. Qingshen..., as shown in Figures 1 and 3, the present invention applies a three-axis accelerometer to the detection method by means of the three-axis acceleration gauge η and the analysis monitoring unit 12 仃 the following steps 'the steps of which include at least - state information capture Step si, a fall condition determination step s 2 and an emergency notification step s 3. The step S1 is mainly used by the analysis monitoring unit to collect the Γ acceleration of the ward by the body posture and change the Γ acceleration of the 姿势 、 、 角度 々 々 々 々 々 々 々 々 々 々 々 々 — — — — — — — — — — — — — — — — — — — — — — Status information. As shown in Fig. 4, the inertial coordinates are set: the axis is the X' axis, the γ' axis, and the ζ' axis. The inertial coordinate is the two-axis direction of the gravity; the three axes of the human coordinate are the X-axis and γ. The axis and the x-axis, the human coordinate refers to the three-caliber direction of the three-hanked acceleration gauge U (as the ward is changed due to changes in body posture). Therefore, the change in acceleration, and the change in angle can be obtained by the change in the human coordinate relative to the inertial coordinate after the subject is changed due to the body posture. The state information holding step S1 is preferably distinguishable between step S11 and step S12 as shown in FIG. 5, wherein: step S11 receives the three axes of the three-axis acceleration gauge 11 (χ axis, γ ' The acceleration of the ^ and Z axes is divided into | and converted to acceleration (^) for subsequent execution of step S12. Step S12 is to calculate the angle between the three axes (X axis, γ axis and z axis) of the human body coordinate and the three axes of the inertial coordinate (X, axis, Y' axis and Z, axis), for example, 'X axis The angle with the X' axis is α, γ axis and γ, 1374408 .. The angle of the axis is the point 'z axis and Z, and the angle between the axes is "as shown in Fig. 4", so as to subsequently perform the fall condition judgment step. S2. By the above steps S11 and S12, respectively, the acceleration change "and,,, degree change"; the acceleration (4) received by the three-axis acceleration gauge n is two-axis (X) The respective accelerations of the axis, the γ axis, and the Z axis are divided into (Y, F, Z). Therefore, in step S11, before calculating the declination α, the angle β, and the angle 7*, it is necessary to pass Euclidean beforehand. The distance formula (as shown in Equation 1) calculates the acceleration (2), where () is the acceleration component (g value) that is received by the three axes of the three-axis accelerometer 11 (X-axis, γ-axis, and ζ-axis). In addition, as in step S12, the angles α of the χ, Υ, and Ζ axes (human coordinates) with respect to χ, axis, γ, axis, and axis (inertial coordinates) are calculated. Angle call and angle ^ (as shown in Equation 2); the angle α, cold angle and angle γ can be defined according to the specifications of Table 1. Since the angle α, the cold angle and the angle γ are defined, The direction of the gravitational force can be found without considering the angle at which the ward is wearing the three-axis acceleration gauge to facilitate the installation of the stern axis acceleration reference by the ward. A = VFTy2+Z2 ...... Formula l) α=cos-1 C05-1 l,r = cos-]ί......(Formula 2)
- ά a A (表l) 箭頭軸向 X + Y + 反向地面个 α =0。 β =0° 平行地面— α =90。 /5 =90。 正向地面Ί a = 180° β =180° —11 — 1374408 該跌倒條件判斷步驟S2主要係判斷加迷戶（2)是 否超過、、跌倒判定門檻值〃，藉以判定被監護者是否發生 跌倒情形，並利用加速度（3)的變化，進〜步區八成跌 倒狀態（Falldown)與正常狀態（Normal)。由於跌倒時 間往往在一秒鐘内就倒地，因此，本發明除利用力速产 (2)予以判斷被監護者之跌倒力道外，更進—步藉由^ 續多次的加速度（2)取樣來進行判斷。如苐6圖所示之 曲線（L)為跌倒前後之加速度（3)的連續變化，藉此 以便設定上述之、、跌倒判定門檻值〃，該、、跌倒判定^檻 值係以實驗及統計方式定之，其中曲線（乙）經由5位 受測者在4G0次跌倒（每位⑽次賴）梭樣本中取得 (如表2所示），在95%信賴區間下，依實驗樣本以統計 方法所求得的該 '、酬判定門檻值〃。其中當、、跌倒判 ^檻值"為3.55g到3.62g之間時，係判定為—般跌倒； :跌倒判疋Η檻值’'超過3 62g時，則可能是從如高 ^下、車禍撞飛、.···.·等較為嚴重的意外傷害。因此，本 :明較佳係設定該、'跌倒判定門檻值夕為3.55g以上，去 :⑷超過、、跌倒判定門檻值” ： 仍需判定為跌倒。 ^- ά a A (Table l) Arrow axis X + Y + Reverse ground α =0. β =0° parallel to the ground – α = 90. /5 = 90. Forward ground Ί a = 180° β = 180° — 11 — 1374408 The fall condition determination step S2 mainly determines whether the confession (2) exceeds or falls, and the fall threshold is 〃, thereby determining whether the ward has a fall situation. And use the acceleration (3) change, into the ~ step area 80% fall state (Falldown) and normal state (Normal). Since the fall time often falls to the ground within one second, the present invention not only utilizes the rapid production (2) to judge the fall of the ward, but also advances the acceleration by (2). Sampling to make a judgment. The curve (L) shown in Fig. 6 is a continuous change of the acceleration (3) before and after the fall, so as to set the above-mentioned, fall determination threshold value, and the fall judgment value is experimental and statistical. The method was determined, in which the curve (B) was obtained by 5 subjects in 4G0 falls (per (10) times) shuttle samples (as shown in Table 2), and under the 95% confidence interval, the statistical samples were used according to the experimental samples. The value of the 'received judgment' is 〃. When the fall and the judgment value are between 3.55g and 3.62g, it is judged as a general fall; when the fall judgment is more than 3 62g, it may be from high More serious accidental injuries such as car accidents, ..... Therefore, this: It is better to set this, 'the fall threshold is 3.55g or more, go to: (4) exceeds, and the fall threshold is judged: still need to be judged as a fall. ^
6.59 (表2) 子口袋高度，未穿鞋） 72 12 — 1374408 更詳言之’該跌倒條件判斷 5圖所示之步驟S21至步驟S28，其中 父佳可區分如第 步驟S21係為判斷是否為第一 「是」，健新回到先前之步驟叫；如判斷^判斷為 執行步驟S22。 j斷為「否」，則 步驟S22係將先前搜集、'狀 如可將、、㈣資訊、存於—暫存^進仃儲存’例 分析監控單元12谓時分_三㈣規便該 、、狀態資訊'並執行步驟S23。 歧11所搜集的 步驟S23係判斷是否目箭 、、 後續說明）；如判斷為「否 計時狀態，（詳參 「是」，則執行步驟爲」係執仃步驟仏如判斷為 料㈣係藉由切暫存之 達到跌倒條件’當加速度（3) 貝1 _疋否 产 超過跌倒邦定門檀值" 夂!Γ 跌倒條件，並執行步驟奶； 田加逮度⑷未超過、、跌·定⑽值〃（3 =斷被監護者未達到跌倒條件，並重新回到先前i S23二驟:5係“入、'計時狀態夕，以便重新執行步驟 Γ自時扯可供觸進入步驟伽，進而瞭解被監護者是否 月A丁站立且繼續活動；另外，當執行步驟s 回到先前之步騾S11。 監護者是倾自行社，並依據 ㈣資訊夕進行判斷作業，舉例而言，該分 析i控早7012可利用先前暫存之人體座標的三軸（x —13 — 1374408 軸、Y軸及z軸）與慣性座標的三軸（χ，軸、γ，軸及z， 軸）彼此之間的角度變化，用以判斷被監護者是否能自行 站立，如判斷為「是」，係執行步驟S27 ;如 「否」，則執行步驟S28。 斷為 步驟S27係清除、、計時狀態"（包含累計時間與計時 動作）’代純監護者可自行站立，而錢進行該緊糸通 重新回到先前之步驟S11 ’以便繼續檢;職 監濩者之狀態。 步驟28係判斷是否未達累計時間，該累計時間可依 實際需求進行設定，例如：三十秒或三十料，且該 時間可根據醫療專業人㈣於被監護人之狀況來設定'、 此，假設確認魏護結法自行站立後，仍可進確二 ^監護者無法自行社㈣暇否未達累計日销，如^ ^站立的時間未達預設累計時間，代表被監護者的跌倒 =仍不嚴重，故重新回到先前之步驟S11 ;如益法自行 ^3的時間已達預設累計時間，則必須執行該緊i通報步 速户步驟S21至步驟S28，本發明可藉由判斷加 是否超過、跌倒判定門檀值^3.抑以上）， 的彎曲=護者曲身活動或短暫 自行站立及是否未達_時由靖被監護者是否可 測微跌倒狀況4戚重跌倒狀況，以有效提升跌倒偵 該緊急通報㈣S3係在藉由上述步驟流程而確認被 =護者為跌·叫，即_傳被監護者跌崎訊予 者’以便監護者可立即雜被監護者送醫的「黃金心蒦 另外’本發明應用三軸加速規之跌倒债測方法的铁’」 件係為由被監護者或監護者依實際需求自行終止。、、條 一因此，藉由如第5圖所示之流程圖，本發 模式較佳可區分為正常狀態、異常_計時_及異常 狀態等三種狀態，該三錄態皆可鱗秒丨 二 行相關步職程，其巾； 人的速度執 被監護者在正常狀態之步驟流程依序為步驟su、+ 驟12、步驟21、步驟22、步驟23、步驟μ、.. v 再重覆上述流程。 ···， 破監護者在異常-計時狀態之步驟流6.59 (Table 2) Sub-pocket height, no shoes) 72 12 — 1374408 More specifically, the step S21 to step S28 shown in the figure of the fall condition determination 5, wherein the parent can distinguish whether the step S21 is to determine whether For the first "Yes", Jianxin returns to the previous step; if the judgment is judged to execute step S22. If j is "NO", then step S22 is to collect the previous collection, 'like the status, the (4) information, and the storage - temporary storage ^ storage" example analysis monitoring unit 12 said the time division _ three (four) rules, , status information 'and step S23 is performed. Step S23 collected by Discrimination 11 is to determine whether or not the eye arrow, and the subsequent description); if it is judged as "No timing state, (for details, refer to "Yes", the execution step is" is the execution step, for example, it is judged to be the material (4) By cutting the temporary storage to reach the fall condition 'When the acceleration (3) Bay 1 _ 疋 no production exceeds the fall of the bonding door sandal value " 夂! 跌 fall conditions, and perform the step milk; Tian Jia catch (4) did not exceed, and fell ·Set the (10) value 〃 (3 = the Guardian has not reached the fall condition, and return to the previous i S23 two steps: 5 series "in," timing state, in order to re-execute the step Gamma, to know whether the ward is standing and continuing to move; in addition, when step s is performed, return to the previous step 骡S11. The custodian is a self-contained society, and based on (4) information, the judgment operation, for example, The analysis iControl 7012 can utilize the three axes of the previously temporarily stored human coordinates (x-13-13374408 axis, Y axis and z axis) and the three axes of the inertial coordinates (χ, axis, γ, axis and z, axis) The change in angle between each other to determine whether the ward can self If the line is standing, if the determination is "Yes", the process proceeds to step S27; if "No", the process proceeds to step S28. The step S27 is cleared, and the time status " (including the accumulated time and timing action) is replaced by a pure guardian. You can stand on your own, and the money will go back to the previous step S11 'to continue the inspection; the status of the supervisor. Step 28 is to determine whether the accumulated time has not been reached, and the accumulated time can be set according to actual needs. For example: 30 seconds or 30 materials, and the time can be set according to the condition of the medical professional (4) in the condition of the ward. 'This is assuming that the Wei guarding method can stand on its own after standing. (4) Does the company fail to reach the accumulated daily sales, such as ^ ^ standing time does not reach the preset cumulative time, representing the fall of the warded person = still not serious, so return to the previous step S11; If the time has reached the preset cumulative time, the step i should be performed to notify the step by step S21 to step S28, and the present invention can be judged by the presence or absence of the fall or the fall of the threshold value. Body activity If you are standing on your own for a short time and if you have not reached _, can you be able to measure the situation of a slight fall in the situation of the 4th 跌 , , , , , , , , 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急 紧急· Calling, that is, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In order to be terminated by the ward or guardian according to actual needs, the first mode, therefore, the flow mode as shown in Fig. 5, the present mode can be better divided into a normal state, an abnormal _ timing _ and an abnormal state Waiting for three states, the three recording states can be scaled seconds, two rows of related steps, and the towel; the speed of the person in the normal state is in the order of steps su, + step 12, step 21, steps 22. Step 23, step μ, .. v Repeat the above process. ···, breaking the guardian's flow in the abnormal-timed state
=、步：21、步驟22、步驟23、步驟24、步驟I ;2:步驟12算步驟21、步驟22、步驟23、步驟％ 驟8、……專，再重覆上述流程。 狀‘離=蔓者在異常嘩除狀態之步驟流程(在異常-計時 〜、σ自仃站立）依序為步驟S11、步驟12、步驟21 二，、步驟23、步驟26'步称27、......步驟二 上述流程。 丹置復 本發㈣用三#加速規之跌倒_方法可達到如下 所述之諸多功效，其中： 本發明應用三輪加速規之跌倒制方法，可藉由該 賴取步驟S1同時考量被監護者姿勢 = 的加速度變化"及、、角度變化"，以便減少該跌倒條件 ^斷步驟S2之誤概形，稍提升跌谢貞醉確率的功 發月應用—軸加速規之跌倒偵測方法，可在該跌 跌倒步驟S2巾，彻料手段進—步確認先前之 I二ΐ有誤判情形，以達到提升侧品質之功效。 緊魚通㈣加逮規之跌倒制方法，可藉由該 龄護者跌倒次3執订主動式通報機制，以便即時回傳被 =者跌倒資訊予監護者，進而達到降低意外傷害比率之 ，二本發明應用三轴加速規之跌倒谓測方法 傷宝比率情形’並提升侦測品質及降低意外 。革等b功效1供應用照護醫療科技之領域。 用以限Μ利用上雜佳實施例揭示，然:其並非 神和1明’任何熟習此技藝者在不脫離本發明之精 本發二Γ内’相對上述實施例進行各種更動與修改仍屬 護娜嘴，因此本發明之保護範圍當視！ 、申叫專利範圍所界定者為準。 U/4408 【圖式簡單說明】 第1圖：用以執行本發明應用三軸加速規之跌倒偵測 方法的系統架構示意圖。 第2圖：本發明應用三轴加速規之跌倒偵測方法所應 用之三轴加速規在跌倒前後的感測方向示意圖。 第3圖：本發明應用三軸加速規之跌倒偵測方法所執 行之步驟的方塊示意圖。 第4圖：本發明應用三軸加速規之跌倒债測方法之人 體應標相對於慣性座標之角度變化示意圖。 第5圖：本發明應用三軸加速規之跌倒债測方法之步 驟流程圖。 第6圖：本發明應用三軸加速規之跌倒偵測方法之跌 倒判定門檻值的曲線圖。 【主要元件符號說明】 〔本發明〕 11三軸加速規 12分析監控單元 —17 —=, step: 21, step 22, step 23, step 24, step I; 2: step 12 calculates step 21, step 22, step 23, step % step 8, ... special, and repeats the above process. The flow of the step of 'offering=the anger in the abnormal elimination state (in the abnormal-timed~, σ self-squatting) is sequentially step S11, step 12, step 21, step 23, step 26' step 27 ... Step 2 above process. The set-up method of the three-speed accelerometer can achieve the following effects: The present invention applies the three-wheel accelerometer fall method, and can take the step S1 while considering the posture of the guardian. The acceleration change "and, angle change", in order to reduce the fall condition, the step-by-step shape of step S2, slightly increase the drop-off test, the application of the shaft acceleration test, the fall detection method of the axis acceleration gauge can be The fall step S2 towel, through the means to step by step to confirm the previous I ΐ ΐ misjudged situation, in order to achieve the effect of improving the side quality. Tight fish pass (4) plus the arrest method of arrest, can be used to prevent the accidental injury rate by reducing the accidental injury rate by the fall of the age of 3 The invention applies the three-axis accelerometer's fall-down method to detect the damage ratio and improves the detection quality and reduces accidents. The role of leather and other b-supply 1 medical care technology. It is disclosed that it is not limited to the use of the above-mentioned embodiments. However, it is not intended to be used by those skilled in the art without departing from the essence of the present invention. Protect the mouth, so the scope of protection of the present invention is considered! The scope defined by the scope of the patent application shall prevail. U/4408 [Simple description of the drawing] Fig. 1 is a schematic diagram of a system architecture for performing the fall detection method of the three-axis accelerometer according to the present invention. Fig. 2 is a schematic view showing the sensing direction of the three-axis accelerometer applied to the fall detection method of the three-axis accelerometer before and after the fall. Fig. 3 is a block diagram showing the steps performed by the fall detection method of the three-axis accelerometer according to the present invention. Fig. 4 is a schematic diagram showing the change of the angle of the body object to the inertial coordinate of the method for applying the three-axis accelerometer. Fig. 5 is a flow chart showing the steps of the method for measuring the fall of the three-axis accelerometer according to the present invention. Fig. 6 is a graph showing the fall threshold value of the fall detection method of the three-axis accelerometer according to the present invention. [Main component symbol description] [Invention] 11 three-axis acceleration gauge 12 analysis monitoring unit — 17 —