TW469417B - Magnetic type article monitoring device - Google Patents

Magnetic type article monitoring device Download PDF

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Publication number
TW469417B
TW469417B TW89102724A TW89102724A TW469417B TW 469417 B TW469417 B TW 469417B TW 89102724 A TW89102724 A TW 89102724A TW 89102724 A TW89102724 A TW 89102724A TW 469417 B TW469417 B TW 469417B
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Taiwan
Prior art keywords
tag
coils
magnetic
coil
current
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TW89102724A
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Chinese (zh)
Inventor
Ching-Chiuan Wang
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Unipulse Corp
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Publication of TW469417B publication Critical patent/TW469417B/en

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  • Geophysics And Detection Of Objects (AREA)

Abstract

The present invention provides a magnetic type article monitoring device by which a tag is surely detected in a gate. To solve the problem, in the device, a pair of energizing coils 1a and 1b constituted by respectively superimposing a pair of main coils 4 and 6 which are respectively provided with a part where current is made to flow in a same direction and with a part where current is made to flow in the different direction in a parallel and horizontal Y direction and a vertical Z direction concerning the movement direction of an article with the tag 3 and also auxiliary coils 5 and 7 are arranged at prescribed interval to permit the part where current is made to flow in the same direction to be opposed to the part where current is made to flow in the different direction. A part between the energizing coils 1a and 1b is made to be the gate 2 for passing through the tag 3 and a detection coil is disposed in the gate 2, which detects that the magnetic flux densities of magnetic fields generated by the respective energizing coils 1a and 1b are changed by the passing-through of the tag 3. Electromagnetic waves are not cancelled each other in any one of X, Y and Z directions in the gate 2 so that the tag 3 is surely detected.

Description

Β7 五、發明說明(1 ) 【發明所屬之技術領域】. 本發明係有關附加於商品等物品,藉識別具有磁性構 (請先閱讀背面之注意事項再填寫本頁) 件之標籤檢測物品之移動,於商店等對於商品附加標籤藉 識別此,可發現遭偷竊所用之磁氣式物品監視裝置,尤.其 ,有關將藉暴露於磁場中發生磁通密度變化之磁性構件之 該磁通密度變化所起因之訊號由檢測用之線圏獲得,將該 訊號藉與既定値比較,來檢測具有有無上述磁性構件所成 之標籤之磁氣式物品監視裝置= 按,於本說明書之本發明或先行例之說明,將流動於 能夠形成閘對向所配置之一對激磁線圈之激磁電流所發生 之電磁波,分別分解爲X方向,Y方向,Z方向說明,但 是,所謂X方向係連結兩激磁線圈之水平方向,所謂Y方 向係與連結上述激磁線圈間方向成直角之水平閘之深度方 向(與附有標籤之物品移動方向平行而水平方向),2方 向係表示垂直方向。 【先行技術】 經濟部智慧財產局員工消費合作杜印製 習知,磁氣式物品監視裝置,係具有施加既定激磁訊 號之激磁線圈,與檢測磁場之檢測線圏成對向裝設,將其 間視爲閘,將此閘,附有具有磁性材所成之標籤之物品移 動時,由來自激磁線圈之磁場將標籤所發生之磁通密度之 變化,由檢測線圈檢測,在既定之條件下就判定爲來自標 籤之磁場,將標籤之移動判斷爲商品等之移動,於商店等 之商品等就可防止偷竊。並且,使用於上述磁氣式物品監 本纸張尺度適用中國國家標準(CNSM4規格(210x 297公釐) -4- 經濟部智慧財產局員工消費合作社印製 4 6 9^1 1 7 A7 ____ B7 五、發明說明(2 ) 視裝置之激磁線圏之電流,係如第7圖或第1 0圖,構成 爲只向同一方向或相反方向流動。 第7圖〜第9圖係表示第1習知例,第7圖係激磁電 流爲由同方向之一對激磁線圈所形成之閘之磁氣式物品監 視裝置之槪略斜視圖,第8圖係表示將第7圖之閘從上所 視時之磁場方向之平面圖,第9圖係表示第7圖之閘從前 面所視時之磁場方向之正面圖。又,第1 〇圖〜第1 2圖 係表示第2習知例,第1 1圖係激磁電流由相反方向之一 對激磁線圈形成閘之槪略性斜視圖,第1 1圖係表示將第 1 ◦圖之閘從上所視時之磁場方向之平面圖,第1 2圖係 表示將第1 0圖之閘從前面所視之磁場方向之正面圖。於 此,於上述第8圖,第9圖,第11圖及第12圖,黑箭 頭係表示電流流動方向,白底箭頭係分別表不磁場方向, 廣寬箭頭係表示電磁波之方向。 【發明所欲解決之問題】 上述第1習知例,係如第8圖及第9圖所示,電磁波 ,係於X方向互相向相同方向互相增強,但是,Y方向與 Z方向係互相抵消》尤其,在閘之中央部爲零,不能檢測 通過此之標籤磁場變化。又,第2習知例,係如第1 1圖 及第1 2圖,電磁波係於Y方向與Z方向互相在相同方向 增強,但是,X方向係互相抵消,尤其,在閘之中央部爲 零’具有不能檢測通過此之標籤磁場變化之問題。 本發明係消除上述問題爲課題,其目的係提供一種即 本紙張尺度哮用中固國家標準(CNS)A4規格(210 X 297公复) -5- I I-----Ί 1 ----裝!!| 訂· —1線 <請先閱讀背面之注急事項再填寫本頁) 6 4 經濟部智慧財產局員工消費合作社印*1^' 9417 Λ, 五、發明說明(3 ) 使於任何場所能夠檢測通過標籤* X方向,Y方向,Z方 向之任一方向之電磁波也有效地作用之磁氣式物品監視裝 置。 【解決問題之手段】 如申請專利範圍第1項之本發明,爲了達成目的,藉 暴露於磁場中將起因於發生磁通密度變化之磁性構件之該 磁通密度變化之訊號由檢測用之線圈得到,藉將該訊號與 既定値比較,檢測備有上述磁性構件之標籤有無之磁氣式 物品監視裝置,附有標籤之物品之移動方向與水平之Y方 向及垂直之Z方向,將分別備有向相同方向流動電流之部 分相異方向流動電流部分之二個線圈分別重疊之一對之激 磁線圈|向相同方向流動電流部分與相異方向流動之部分 能夠對向隔既定間隔配置,將標籤通過兩線圈間成爲閘, 檢測對此閘裝設由上述各激磁線圈所生成之磁場之磁通密 度爲由於上述標籤之通過而起變化之檢測線圈。 又,申請專利範圍第2項之本發明,係將藉由暴露於 磁場中發生磁通密度變化之磁性構件之該磁通密度之變化 所起因之訊號,由檢測用之線圈獲得,藉將該訊號與既定 値比較,來檢測出有無備有上述磁性構件標籤之磁氣式物 品監視裝置者,其特徵爲於與附加有標籤之物品移動方向 平行而水平之Y方向及垂直之Z方向,分別在單向流動電 流之主線圈,將於中央之合流路重疊從兩側連接所成之補 助線圏所形成之激磁線圈,使與向相同方向流動之部分相 — — — — — ί — i — — — — — · I I I I I I I ^ * — — — — — — 1— 1 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CN’S)A4規格(210 x 297公釐) -6-Β7 V. Description of the invention (1) [Technical field to which the invention belongs]. The present invention relates to the detection of items attached to goods and other items by identifying magnetic structures (please read the precautions on the back before filling this page). Moving, identifying the tags attached to goods in stores, etc., you can find the magnetic article monitoring device used for theft, especially the magnetic flux density of magnetic components that will change by exposure to a magnetic field The signal of the cause of the change is obtained from the detection wire, and the signal is compared with the predetermined signal to detect the presence or absence of a magnetic article monitoring device with a label made of the magnetic member. The explanation of the previous example is that the electromagnetic waves generated by the exciting current that can form a pair of exciting coils arranged in the opposite direction of the brake are divided into the X direction, the Y direction, and the Z direction, respectively. However, the so-called X direction connects the two excitations. The horizontal direction of the coil, the so-called Y-direction is the depth direction of the horizontal brake (at the right angle to the direction between the exciting coils above) A movement direction parallel to the horizontal direction), the vertical direction represents a 2-party system. [Leading technology] Consumption cooperation between employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, Du printed manufacturing, magnetic-type article monitoring devices are equipped with an excitation coil that applies a predetermined excitation signal, and are installed in opposition to a detection line for detecting a magnetic field. It is regarded as a gate. When an object with a label made of a magnetic material is moved to this gate, the magnetic flux from the excitation coil changes the magnetic flux density generated by the label by the detection coil, and it is detected under the predetermined conditions. It is determined that the magnetic field comes from the tag, and the movement of the tag is judged as the movement of the product, etc., and theft can be prevented for the product and the like in the store. In addition, the paper size used for the above-mentioned magnetic articles is applicable to the Chinese national standard (CNSM4 specification (210x 297 mm) -4- printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6 9 ^ 1 1 7 A7 ____ B7 V. Description of the invention (2) The current of the exciting line of the device, as shown in Fig. 7 or Fig. 10, is configured to flow only in the same direction or in the opposite direction. Figs. 7 to 9 show the first exercise. Known example, FIG. 7 is a schematic perspective view of a magnetic-type article monitoring device in which the exciting current is a gate formed by a pair of exciting coils in the same direction, and FIG. 8 shows the gate of FIG. 7 viewed from above. FIG. 9 is a plan view showing the direction of the magnetic field at the time, and FIG. 9 is a front view showing the direction of the magnetic field when the gate of FIG. 7 is viewed from the front. FIGS. 10 to 12 show the second conventional example. Figure 1 is a schematic oblique view of the exciting current formed by a pair of exciting coils in opposite directions. Figure 11 is a plan view showing the direction of the magnetic field when the brake of Figure 1 is viewed from above. Figure 1 and 2 It is a front view showing the direction of the magnetic field viewed from the front of the gate of Fig. 10. Here, in the above eighth In Figures, 9, 9, and 12, the black arrows indicate the direction of current flow, the white arrows indicate the direction of the magnetic field, and the broad arrows indicate the direction of the electromagnetic wave. [Problems to be Solved by the Invention] In the first known example, as shown in Figs. 8 and 9, electromagnetic waves are mutually strengthened in the X direction toward the same direction, but the Y direction and the Z direction cancel each other. In particular, the central part of the brake is: Zero, it is not possible to detect changes in the magnetic field of the tag passing through it. Also, in the second conventional example, as shown in Figure 11 and Figure 12, the electromagnetic waves are strengthened in the same direction in the Y direction and the Z direction, but the X direction is Cancellation of each other, in particular, zero in the center of the gate has the problem that the magnetic field change of the tag passing through it cannot be detected. The present invention is to eliminate the above-mentioned problem as a problem, and the object thereof is to provide a paper standard that uses the Zhonggu national standard ( CNS) A4 specification (210 X 297 public reply) -5- I I ----- Ί 1 ---- install !!! | Order · —1 line < Please read the urgent notice on the back before filling this page ) 6 4 Seal of Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs * 1 ^ '9417 Λ Fifth, the invention is described in (3) in any location capable of detecting a magnetic article surveillance tags by means * X direction, Y direction, Z direction of the electromagnetic wave in either direction of the effective action. [Means of Solving the Problem] For the purpose of applying the present invention in the scope of patent application No. 1, in order to achieve the purpose, the signal of the magnetic flux density change caused by the magnetic member whose magnetic flux density is changed by exposure to a magnetic field is detected by a coil for detection. Obtained, by comparing this signal with a predetermined threshold, a magnetic-type article monitoring device that detects the presence or absence of a tag with the above-mentioned magnetic member, and the moving direction of the tagged article, the horizontal Y direction, and the vertical Z direction will be prepared separately. The current flowing in the same direction is different. The two coils of the current flowing in the same direction overlap each other. One pair of exciting coils | The current flowing in the same direction and the part flowing in different directions can be arranged at predetermined intervals. As a gate between the two coils, a detection coil is installed to detect the magnetic flux density of the magnetic field generated by each of the above-mentioned excitation coils due to the passage of the tag. In addition, the invention according to the second item of the patent application is a signal obtained by detecting a change in the magnetic flux density of a magnetic member that undergoes a change in magnetic flux density by exposure to a magnetic field, and is obtained by a coil for detection. Those who detect the presence of a magnetic-type article monitoring device equipped with the above-mentioned magnetic member tag by comparing the signal with a predetermined 値 are characterized in that the horizontal Y direction and the vertical Z direction are parallel to the moving direction of the tagged item, respectively. The main coil that flows current in one direction is superimposed on the confluence path in the center, and the excitation coil formed by the auxiliary line 连接 connected from both sides is superimposed on the part flowing in the same direction — — — — — ί — i — — — — — · IIIIIII ^ * — — — — — — 1— 1 (Please read the notes on the back before filling out this page) This paper size applies to China National Standard (CN'S) A4 (210 x 297 mm)- 6-

4 6 94 1 T A7 B7 五、發明說明(4 ) (請先閱讀背面之注意事項再填寫本頁) 異方向流動部分能夠對向隔既定間隔加以配置,兩線圈間 標籤通過者視爲閘,在此閘設欲檢測由上述各激磁線圈所 生成磁場之磁通密度爲由於上述標籤之通過而發生變化之 事之檢測線圈。 【發明之實施形態】 茲將本發明之較佳實施形態依據附圖詳細說明如下。 於此,附圖之第1圓〜第4圖係表示本發明之實施形態, 第1圖係由一對主線圈與補助線圈所構成之激磁線圈之分 解斜視圖,第2圖係將由一對主線圈與補助線圈所構成之 激磁線圈從閘內側所視之展開圖,第3圖係將主線圈與補 助線圈之電流大小相同時表示電磁波方向之閘從上方所視 之模式圖’第4圖係將主線圈與補助線圈之電流大小相異 時表示電磁波方向之閘從上方所視之模式圖,第5圖及第 6圖係將於其他實施形態之一對激磁線圈從閘內側所視之 展開圖。 經濟部智慧財產局員工消費合作社印製 如第1圖所示,磁氣式物品監視裝置,係於一對激磁 線圈1 a ,1 b間之閘2藉暴露於磁場中備有磁通密度之 變化之磁性構件之標籤3之該磁通密度之變化所起因之檢 測部(沒有圖示)所獲得,藉將該訊號與既定値比較,構 成爲用來有無上述標籤3者。亦即,上述檢測部,係公知 之構成,在配置上述各激磁線圈1 a ,1 b之各面板(沒 有圖示)’具有連同上述各激磁線圈la , lb所配置之 檢測線圈(沒有圖示)’藉此檢測線圈,檢測出在上述閘 本紙張尺度適用中國國家標準(CNS)A4規格(210 * 297公餐) 469417 A7 B7 經濟部智慧財產局員工消費合作社印?Λ 五、發明說明(5.) 2由上述各激磁線圈1 a.,1 b所生成之磁場之磁通密度 爲由於上述標籤3之通過而引起變化者v又,使用上述標 籤係例如,紙或乙烯樹脂等所成之板狀或形成爲薄膜狀之 標籤本體固著磁性構件(沒有圖示)者,在商品等物品之 適當之面,使用黏著劑黏著》 激磁線圈1 a,lb,係例如對向於商店等之出入口 ,並且’隔有人可通過程度之間隔,由公知之激磁部(沒 有圖示)所激磁來發生既定之磁場。另一方面,當標籤3 通過檢測部(沒有圖示),將上述激磁線圈la,lb間 之閘2時|檢測由此標籤3所發生之脈衝訊號者,與放大 由上述檢測線圈交叉之磁場變化所產生之訊號,並且,構 成爲轉換爲訊號處理所需之訊號電平等輸入於控制部(沒 有圖示)。 激磁部係具有沒有圖示之數位,類比轉換器,與低通 濾波器,與激磁用放大器。 上述數位,類比轉換器,係將從控制部輸出之數位正 弦波轉換爲類比正弦波,此正弦波係用來施加激磁線圈 la,lb者,於控制部,藉公知,周知之正弦波發生程 式之執行,構成爲輸出數位正弦波訊號。又,上述低通濂 波器1係去除從數位,類比轉換器所輸出含於類比正弦波 之不需要高頻率成分,爲了欲既定頻率以下之訊號。並且 ,激磁用放大器,係放大能夠對於標籤3之檢測所需充分 之磁場爲經由從激磁線圈1 a,1 b所發生之低通濾波器 所輸入之正弦波輸出於激磁線圈la,lb所用者。 (請先閲讀背面之注意事項寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -8 - 經濟部智慧时產局員工消費合作杜印製 6 9d1 7 „ A/ ____B7_ 五、發明說明(e ) 另一方面,沒有圖示之檢測部,係具備上述檢測線圈 ,與差動放大器,·與陷波濾波器(notch filter ),頻帶濾 波器(band path filter)與電平燒成用放大器,與類比 ,數位轉換器。 上述差動放大器,係將由檢測線圈之訊號,差動放大 到去除於後段電路之不需訊號充分程度加以輸出者,而具 有公知,周知之電路構成。又,上述陷波濾波器係用來去 除由被差動放大之檢測線圈所檢測之訊號所包含之載波成 分者,所謂陷波頻率,係被設定爲載波頻率,而構成爲只 輸出由標籤3所發生之脈衝訊號之成分。並且,上述頻帶 濾波器,係公知,周知者,從經由陷波濾波器得到之訊號 ,用來再去除不需要之高頻率及低頻率成分者。又再,上 述頻帶濾波器係對於此後段側之類比,數位轉換輸入從頻 帶濾波器得到之訊號起見放大到所需電平輸出》 控制部.係對於從檢測部輸入之訊號施加訊號處理判定 於激磁線圈與檢測線圈間之標籤3之通過,視其需要進行 由通知部之通過之外,構成爲經由激磁部進行激磁線圈 1 a,1 b之激磁》又,通知部係由控制部檢測標籤3通 過時,因應來自控制部之訊號進行通知動作者,例如發出 警報峰嗚音。 如第1圖〜第4圖所示,上述一方之激磁線圈1 a ( 於第1圖〜第4圖爲左側),係於Y方向及Z方向,分別 將一方向(於第2圖爲順時針方向)流動電流之主線圈4 ,與在中央之合流路5 a向順時針方向(第2圖)電流之 本紙張尺度適用中囡國家標準(CNS)A4規格(210 X 297公餐) -9 -4 6 94 1 T A7 B7 V. Description of the invention (4) (Please read the precautions on the back before filling this page) The flow direction of the opposite direction can be configured at a predetermined interval. The label passing between the two coils is regarded as a brake. A detection coil is provided here to detect the magnetic flux density of the magnetic field generated by each of the excitation coils as a result of the passage of the tag. [Embodiment of the Invention] A preferred embodiment of the present invention is described in detail below with reference to the drawings. Here, the first circle to the fourth figure of the drawing show the embodiment of the present invention. The first figure is an exploded perspective view of a field coil composed of a pair of main coils and auxiliary coils, and the second figure is a pair of Expansion view of the exciting coil composed of the main coil and the auxiliary coil viewed from the inside of the brake. FIG. 3 is a schematic view of the brake viewed from above when the current of the main coil and the auxiliary coil is the same. FIG. 4 Figures 5 and 6 are diagrams showing the direction of the electromagnetic wave from the top when the currents of the main and auxiliary coils are different. Figures 5 and 6 are views of the excitation coil from the inside of the brake in one of the other embodiments. Expanded view. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, as shown in Figure 1, a magnetic article monitoring device is attached to a pair of excitation coils 1 a and 1 b. The gate 2 is exposed to a magnetic field with a magnetic flux density. The detection part (not shown) of the cause of the change in the magnetic flux density of the tag 3 of the changed magnetic member is obtained by comparing the signal with a predetermined value to determine whether or not the tag 3 is present. That is, the detection unit has a well-known structure, and each panel (not shown) in which each of the excitation coils 1 a and 1 b is disposed has a detection coil (not shown) disposed together with the above-mentioned excitation coils la and lb. ) 'Take this detection coil to detect that the Chinese standard (CNS) A4 specification (210 * 297 meals) is applicable to the above-mentioned Zahamoto paper size 469417 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs? Λ V. Description of the invention (5.) 2 The magnetic flux density of the magnetic field generated by each of the above exciting coils 1 a., 1 b is the change caused by the passage of the above-mentioned label 3 v. The above-mentioned label is used for example, paper In the case of a plate-shaped or film-shaped label body made of vinyl resin or a film body with a magnetic member (not shown), an appropriate adhesive is used on the appropriate surface of the product and other articles. The field coil 1 a, lb, is For example, for a doorway to a store, etc., and a predetermined magnetic field is generated by a known excitation unit (not shown) at intervals that can be passed by people. On the other hand, when the tag 3 passes the detection section (not shown), the gate 2 between the above excitation coils la and lb | detects the pulse signal generated by the tag 3 and amplifies the magnetic field crossing by the detection coil The signal generated by the change is inputted to the control unit (not shown) so that the signal level required for conversion to signal processing is input. The excitation unit has digital (not shown), analog converter, low-pass filter, and excitation amplifier. The above digital, analog converter is to convert the digital sine wave output from the control unit into an analog sine wave. This sine wave is used to apply the excitation coils la, lb. In the control unit, a well-known and well-known sine wave generation program is used. The execution is configured to output a digital sine wave signal. In addition, the above-mentioned low-pass chirp wave filter 1 removes the digital and sine wave output from the analog converter, which does not require high-frequency components, in order to obtain signals below a predetermined frequency. In addition, the excitation amplifier is used to amplify a sufficient magnetic field required for the detection of the tag 3 as a sine wave input from a low-pass filter generated from the excitation coils 1 a and 1 b to the excitation coils la and lb. . (Please read the notes on the back first to write this page) This paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -8-Consumer Cooperation of Wisdom and Time Production Bureau of the Ministry of Economic Affairs, printed 6 9d1 7 „ A / ____B7_ 5. Description of the Invention (e) On the other hand, a detection section (not shown) includes the above-mentioned detection coil, a differential amplifier, a notch filter, and a band path filter. ) And amplifiers for level firing, analogs, and digital converters. The above-mentioned differential amplifiers are known to output differential signals from the detection coils to a sufficient degree to remove the unnecessary signals from the circuit at the back, Well-known circuit structure. The notch filter is used to remove the carrier component contained in the signal detected by the differentially amplified detection coil. The so-called notch frequency is set to the carrier frequency and is configured as Only the components of the pulse signal generated by the tag 3. The above-mentioned band filter is well known and well known, and is used to remove the signal from the notch filter. Those who do not need high-frequency and low-frequency components. Furthermore, the above-mentioned band filter is for the subsequent analogy, the digital conversion input is amplified from the signal obtained from the band filter to the required level and output. The signal input processing from the detection unit is determined to pass the tag 3 between the excitation coil and the detection coil. If necessary, the signal is passed by the notification unit, and the excitation coil 1 a, 1 b is configured to pass through the excitation unit. "Excitation" When the notification unit is passed by the control unit detection tag 3, the notification unit responds to the signal from the control unit, for example, an alarm peak whistle. As shown in Figs. 1 to 4, the excitation coil of the above one 1 a (left side in Figures 1 to 4), which are in the Y direction and Z direction, respectively, the main coil 4 that flows current in one direction (clockwise direction in Figure 2), and the confluence path in the center 5 a Clockwise (Figure 2) The current paper size applies the China National Standard (CNS) A4 specification (210 X 297 meals) -9-

Illt.— 111 — — — — — - — If — — — — ^ ------I — · (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 46 94 1 7 A7 B7 五、發明說明(7 ) 外側路5 b與向反時針方向(第2圖)流動電流之外側路 5 c從兩側連接所成之補助線圈5,把由符號a ,b,c 所示四隅重疊於由符號G,Η ’ J ,I所示四隅所構成。 又,他方之激磁線圈1 b *係將向與上述激磁線圈1 a .之 主線圈4同一方向流動之電流之主線圈6 ,與在中央之合 流路7 a向順時針方向(第2圖)流動之電流之外側路 7 b與向反時針方向流動電流之外側路7 c從兩側連接所 成之補助線圈7,把符號A,B,C所示四隅以符號g, h,j ,1所示四隅重疊所構成。並且,將這些激磁線圈 1 a ,1 b間成爲標籤3通過之閘2形成爲如上述。 由第2圖就可淸楚,具有激磁線圈1 a ,1 b之激磁 效果之電流之流動,係a — E — F — b — a ,具有激磁線 圈1 b之激磁效果之電流流動,係C — e — f — D — C。 因此,若第3圖所示主線圈4,6與補助線圈5,7之電 流大小相異時,於上述激磁線圏1 a ,1 b間之閘2,由 電流激發之電磁波,係在X方向雖然存在有互相有效地抵 消之部分’但是,此部分由於偏離所以不妨礙標籤3之檢 測。另一方面,若第4圖所示上述電流大小相同時,於X ’ Y ’ Z之各方向不存在有電磁波互相抵消之部分。按, 於第3圖及第4圖,白底箭頭係表示磁場方向,寬廣箭頭 係表示電磁波之方向。 並且’例如標示有標籤3之商品通過上述閘2時,由 激磁線圈1 a ,1 b所發生之電磁波,將由標籤3所發生 之磁通密度之變化’由檢測線圈(沒有圖示)檢測,在既 --t I----Ί I I---裝 - ----II 訂---- -----線 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中因國家標準(CNS)A4規格(210x297公餐) -10- 94 1 7 A7 ____B7_ 五、發明說明(8 ) 定條件下就可判定爲來自.標籤3之磁場,就可防止於商店 等之商品等之偷竊。 (請先閱讀背面之注意事項再填寫本頁) 按,本發明係並非限定於上述實施形態者,將具有與 附加有標籤3之物品之移動方向平行於水平之Y方向及垂 直之Z方向,分別與相同方向流動電流之部分相異方向流 動電流部分之二個線圈分別重疊而成之一對激磁線圈,只 要是成爲與向相同方向流動電流部分相異方向流動部分能 夠對向隔既定間隔配置就可以,例如,第5圖(將激磁線 圈1 0 0 a ,1 0 0 t)從閘內側所視展開圖,欲形成閘時 ,係使用將由符號Μ,N,0所示四隅與符號m,η,〇 ,Ρ所示四隅配置成對向)之激磁線圈1 0 0 a , 1 0 0 b者,或也可以使用第6圖(將激磁線圈2 0 0 a 1 2 0 0 b從閘內側所視展開圖,欲形成閘時,係使用將 由符號S,T,U,V所示四隅與符號s ,t ,u,v所 示四隅配置成對向)之激磁線圈200a ,200b。又 ,如上述實施形態之商店之商品之防止偷竊用之外,也可 使用於美術館之美術品之防止偷竊等- 經濟部智慧財產局員工消費合作社印裂 【發明效果】 如以上,申請專利範圍第1項之本發明,係由一對激 磁線圈所激發之電磁波都存在於X方向1 Y方向1 Z方向 之任一,所以,標籤通過閘之任何部分也可檢測,可發揮 確實監視物品移動之效果。 又,申請專利範圍第2項之本發明,係在一方向流動 本纸張尺度適用中國國家標準(CNS)A4規格(210 X 297公髮) -11 - 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明(9 ) 電流之主線圈,於中央合流路從外側路兩側連接所成之補 助線圏重疊所成之激磁線圈,與在與上述激磁線圈之主線 圈電流方向向相反方向流動電流之主線圈,將中央合流路 將外側路從兩側連接所成之補助線圈重疊所成之激磁線圈 ,與向相同方向流動電流之部分相異方向流動電流之部分 爲隔既定方向配置成能夠變成對向,所以,由一對激磁線 圈所激磁之電磁波因都存在於X方向* Y方向,Z方向之 任一方向,所以無論標籤通過閘之任一部分也可檢測標籤 ,而可發揮將物品之移動更加確實地加以監視之效果。 圖式之簡單說明 第1圖係激磁線圈之分解斜視圖。 第2圖係將兩激磁線圈從閘之內側所視之展開圖。 第3圖係主線圏與補助線圈之電流大小時相異時之電 磁波方向所示之閘從上方所視之模式圖。 第4圖係主線圈與補助線圈之電流大小時相同時之電 磁波要綱所示之閘從上方所視之模式圖。 第5圖係將其他實施形態之激磁線圈與檢測線圈從閘 內側所視之展開圖。 第6圖係將其他實施形態之激磁線圈與檢測線圈從閘 內側所視之展開圖。 第7圖係於第1先行技術例之激磁線圈之斜視圖。 第8圖係表示將第1先行技術例之電磁波方向之閘從 上方所視之模式圖。 -------— ^1 —--I — ·1111111 ^ ·11111111 (請先閱讀背面之注意事項再填寫本頁) 本纸張反度適用中國國家標準(CNS)A4規格(210 X 297公釐) -12- 4 6 9417 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(1〇 ) 第9圖係表示將第1·先行技術例之電磁波方向之閘從 正面所視之模式圖。 第1 0圖係於第2先行技術例之激磁線圈之斜視圖。 第1 1圖係表示將第2先行技術例之電磁波方向之閘 從上方所視之模式圖。 第1 2圖係表示將第2先行技術例之電磁波方向之閘 從正面所視之模式圖。 號之說明】 1 a - 1 b 激磁線圈 2 閘 3 標籤 4 主線圈 5 補助線圈 5 a 合流路 5 b,5 c 外側路 6 主線圈 7 補助線圈 7 a 合流路 7 b - 7 c 外側路 l〇〇a - 10〇b 激磁線圈 200a - 20〇b 激磁線圈 本紙張尺度適用令國國家標準(CN’S)A4規格(210 X 297公釐〉 -13- I I----------- n It---訂·----- - --線 (請先閱讀背面之注意事項再填寫本頁)Illt. — 111 — — — — — — — — If — — — — ^ ------ I — · (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau Staff Consumer Cooperatives 46 94 1 7 A7 B7 V. Description of the invention (7) Outer side 5b and the outer side 5c flowing current in a counterclockwise direction (picture 2) The auxiliary coil 5 formed by connecting from both sides, the symbols a, b , 隅 shown by c is superimposed on the four 隅 shown by the symbols G, Η 'J, I. In addition, the other field coil 1 b * is the main coil 6 that will flow a current in the same direction as the main coil 4 of the above-mentioned field coil 1 a. And the confluence path 7 a in the center is clockwise (FIG. 2). The auxiliary current 7 formed by connecting the outer current path 7 b flowing in the counterclockwise direction and the outer current path 7 c flowing counterclockwise is formed by connecting the symbols A, B, and C with the symbols g, h, j, 1 The four ridges shown are constructed by overlapping. The gate 2 between these excitation coils 1 a and 1 b to pass through the tag 3 is formed as described above. As can be seen from Figure 2, the current flow with the excitation effect of the excitation coils 1 a and 1 b is a — E — F — b — a, the current flow with the excitation effect of the excitation coil 1 b is C — E — f — D — C. Therefore, if the magnitudes of the currents of the main coils 4, 6 and the auxiliary coils 5, 7 shown in FIG. 3 are different, the electromagnetic wave excited by the current at the gate 2 between the above excitation lines 圏 1 a and 1 b is at X Although the directions have portions that effectively cancel each other, this portion does not prevent the detection of the tag 3 due to the deviation. On the other hand, if the magnitudes of the currents shown in FIG. 4 are the same, there is no portion where the electromagnetic waves cancel each other out in each direction of X'Y'Z. In Figures 3 and 4, the arrows on the white background indicate the direction of the magnetic field, and the broad arrows indicate the direction of the electromagnetic wave. And "for example, when a product marked with label 3 passes through the above-mentioned gate 2, the electromagnetic waves generated by the excitation coils 1a, 1b will be changed by the magnetic flux density generated by the label 3" by the detection coil (not shown), In the existing --t I ---- Ί I I --- install----- II order ---- ----- line (Please read the precautions on the back before filling this page) This paper size In the application, due to the national standard (CNS) A4 specification (210x297 meals) -10- 94 1 7 A7 ____B7_ V. Description of the invention (8) Under certain conditions, it can be judged to come from the magnetic field of the label 3. It can be prevented from being stored in the store, etc. Theft of goods, etc. (Please read the precautions on the back before filling this page.) According to this, the present invention is not limited to the above embodiment, and the direction of movement of the article with the label 3 is parallel to the horizontal Y direction and the vertical Z direction. A pair of exciting coils are formed by overlapping two coils respectively flowing in a direction different from a portion of the current flowing in the same direction, as long as the current flowing in a direction different from the direction of the current flowing in the same direction can be arranged at a predetermined interval. It can be, for example, Fig. 5 (excitation of the exciting coils 1 0 0 a, 1 0 0 t) from the inside of the brake. To form the brake, use the quadrangle and symbol m shown by the symbol M, N, 0. , Η, 〇, and P are shown in the figure, the four coils are arranged in opposite directions) of the excitation coils 1 0 a, 1 0 0 b, or you can also use Figure 6 (the excitation coil 2 0 0 a 1 2 0 0 b from the brake The development view viewed from the inside, when the brake is to be formed, the excitation coils 200a, 200b are used in which the four coils shown by the symbols S, T, U, V and the four coils shown by the symbols s, t, u, v are arranged to face each other. Moreover, in addition to the theft prevention of goods in the stores of the above-mentioned embodiment, the theft prevention of art works in art museums can also be used.-Intellectual Property Bureau, Ministry of Economic Affairs, Employee Consumption Cooperatives [Invention Effect] As above, the scope of patent application The invention of item 1 is that the electromagnetic waves excited by a pair of exciting coils exist in any one of the X direction, the Y direction, and the Z direction. Therefore, the tag can be detected through any part of the gate, and the movement of the article can be monitored reliably. The effect. In addition, the invention of item 2 in the scope of patent application is in one direction. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297). -11-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (9) The main coil of the current, the excitation coil formed by overlapping the auxiliary lines 连接 connected from the two sides of the outer path in the central confluence path, is opposite to the direction of the current of the main coil of the above excitation coil The main coil that flows current in the direction is an excitation coil that is formed by overlapping the auxiliary junction coil formed by connecting the central merging path and the outer path from both sides. It can be opposite. Therefore, the electromagnetic waves excited by a pair of exciting coils exist in the X direction * Y direction, Z direction, so the label can be detected regardless of whether the label passes through any part of the gate, and it can play The effect of monitoring the movement of items more reliably. Brief Description of Drawings Figure 1 is an exploded perspective view of the exciting coil. Figure 2 is an expanded view of the two excitation coils viewed from the inside of the brake. Fig. 3 is a schematic diagram of the gate shown in the direction of the electromagnetic wave when the currents of the main line 圏 and the auxiliary coil are different from each other. Fig. 4 is a schematic view of the gate shown in the outline of the electromagnetic wave when the currents of the main coil and the auxiliary coil are the same. Fig. 5 is a developed view of the excitation coil and the detection coil of another embodiment as viewed from the inside of the brake. Fig. 6 is a development view of the excitation coil and the detection coil of another embodiment as viewed from the inside of the brake. Fig. 7 is a perspective view of a field coil in the first prior art example. Fig. 8 is a schematic view showing the electromagnetic wave direction brake of the first prior art example as viewed from above. -------— ^ 1 —-- I — · 1111111 ^ · 11111111 (Please read the precautions on the back before filling this page) The reverse of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12- 4 6 9417 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (1) Figure 9 shows the brake of the direction of the electromagnetic wave of the 1st advanced technology example from the front. See the pattern diagram. Fig. 10 is a perspective view of the exciting coil in the second prior art example. Fig. 11 is a schematic view showing the electromagnetic wave in the direction of the second prior art example as viewed from above. Fig. 12 is a schematic view showing the electromagnetic wave in the direction of the second prior art example as viewed from the front. Description of the number] 1 a-1 b Exciting coil 2 Gate 3 Label 4 Main coil 5 Auxiliary coil 5 a Merging circuit 5 b, 5 c Outer circuit 6 Main coil 7 Auxiliary coil 7 a Merging circuit 7 b-7 c Outer circuit l 〇〇a-10〇b Excitation coil 200a-20〇b Excitation coil This paper size applies the national standard (CN'S) A4 specification (210 X 297 mm> -13- I I --------- -n It --- order · --------- line (Please read the precautions on the back before filling this page)

Claims (1)

4 9 6 4 im 六、申請專利範圍 f請先閱讀背面之注意事項再耳寫本頁) 1 ·—種磁氣式物品.監視裝置,藉暴露於磁場中將發 生磁通密度變化之磁性構件之該磁通密度變化所起因之訊 號由檢測用線圈獲得,藉將該訊號與既定値比較,來檢測 備有上述磁性構件之標籤之有無者,其特徵爲: 附有標籤物品之移動方向平行而k水平之γ方向及垂 直之z方向,將分別備有與相同方向流動電流部分相異方 向流動電流部分之二個線圈分別重疊所成一對激磁線圈, 與向相同方向流動電流部分相異方向流動之電流部分隔既 定間隔配置成能夠對向,將成爲兩線圈間通過標籤之閘, 裝設檢測在此閘上述各激磁線圈所生成之磁場之磁通密度 爲由於上述標籤之通過而發生變化之檢測線圈。 2 . —種磁氣式物品監視裝置,藉暴露於磁場中將發 生磁通密度變化之磁性構件之該磁通密度變化所起因之訊 號由檢測用線圈獲得,藉將該訊號與既定値比較,來檢測 備有上述磁性構件之標籤之有無者,其特徵爲; 經濟部智慧財產局員工消費合作社印製 附有標籤物品之移動方向平行而於水平之Y方向及垂 直之Z方向,將分別備有向一方向流動電流之主線圈,於 中央之合流路將外側路從兩側連接而成之補助線圈重疊所 成之激磁線圈,與在與上述激磁線圈之主線圈之電流方向 向相反方向流動之電流之主線圈,對於中央合流路將外側 路從兩側連接所成之補助線圈重疊所成之激磁線圈 > 與相 同方向流動電流部分相異方向流動之部分隔既定間隔配置 成能夠對向,將兩線圏間作爲標籤通過之閘,在此閘裝設 檢測由上述各激磁線圈所生成之磁場磁通密度爲由上述標 本纸張尺度適用中國國家標準(CNS)A4規格(210x297公釐) 4 6 94 1 7 AS B8 C8 DS 六、申請專利範圍 籤之通過發生變化之檢測線圈。 ------^-----裝--------訂—-------線 (請先閱讀背面之注意事項再4寫本頁> 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -15-4 9 6 4 im 6. The scope of patent application f, please read the precautions on the back before dictating this page) 1-a magnetic type item. A monitoring device that exposes a magnetic component to a magnetic flux density change when exposed to a magnetic field The signal resulting from the change in the magnetic flux density is obtained by a detection coil, and the presence or absence of the tag provided with the above magnetic member is detected by comparing the signal with a predetermined threshold, which is characterized in that: the moving direction of the article with the tag is parallel In the horizontal γ direction and the vertical z direction, a pair of exciting coils are formed by overlapping two coils with different current flowing directions in the same direction, respectively, and different directions from the current flowing in the same direction. The flowing current part is arranged at a predetermined interval so as to be opposite to each other, and will become a gate passing through the tag between the two coils. The magnetic flux density of the magnetic field generated by the above-mentioned excitation coils at the gate will be changed due to the passage of the tag. Its detection coil. 2. A type of magnetic article monitoring device that obtains the signal caused by the change in the magnetic flux density of a magnetic member that will undergo a change in magnetic flux density when exposed to a magnetic field, obtained by a detection coil, and compares the signal with a predetermined value, To detect the presence or absence of a tag equipped with the above-mentioned magnetic member, the characteristics are: The moving direction of the printed article printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is parallel to the horizontal Y direction and the vertical Z direction, and will be prepared separately. The main coil having a current flowing in one direction, and the excitation coil formed by overlapping the auxiliary coils connecting the outer paths from both sides in the central confluence path, flows in the opposite direction to the current direction of the main coil of the above-mentioned excitation coil. The main coil of the current is an excitation coil formed by overlapping the auxiliary coil formed by connecting the outer path from both sides of the central confluence path > The part flowing in the same direction and the part flowing in a direction different from the direction of the current is arranged at a predetermined interval so as to be opposite to each other The gate between the two wires is used as a tag. The gate is installed to detect the magnetic flux density of the magnetic field generated by the above excitation coils. This paper by the standard applicable China National Standard Scale (CNS) A4 size (210x297 mm) 4 6 94 1 7 AS B8 C8 DS six, patented scope of the check by the detection coil changes. ------ ^ ----- installation -------- order ----------- line (please read the precautions on the back before writing this page 4) Ministry of Economy Intellectual Property Bureau's consumer cooperation Du printed paper size applicable to China National Standard (CNS) A4 (210 X 297 mm) -15-
TW89102724A 1999-08-02 2000-02-17 Magnetic type article monitoring device TW469417B (en)

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JP4544283B2 (en) * 2007-09-19 2010-09-15 富士ゼロックス株式会社 Carriage management gate
JP5691594B2 (en) * 2011-02-09 2015-04-01 富士ゼロックス株式会社 Detection device and processing system
US8576114B2 (en) * 2011-06-24 2013-11-05 Thales Canada Inc. Location of a transponder center point
CN106842336A (en) * 2017-02-09 2017-06-13 王积东 By formula detector and by formula detection method
CN106710855B (en) * 2017-02-09 2024-06-04 东莞市华盾电子科技有限公司 Coil structure of passing detector and passing detector
KR102268177B1 (en) * 2021-02-02 2021-06-22 (주)그린아이티코리아 Access control system using magnetic sensor with detection area designation structure

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