TW201544670A - Tamperproof electronic seal - Google Patents
Tamperproof electronic seal Download PDFInfo
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- TW201544670A TW201544670A TW103118723A TW103118723A TW201544670A TW 201544670 A TW201544670 A TW 201544670A TW 103118723 A TW103118723 A TW 103118723A TW 103118723 A TW103118723 A TW 103118723A TW 201544670 A TW201544670 A TW 201544670A
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Abstract
Description
本發明係提供一種防竄改之電子封條，更詳而言之，尤指竊賊在研磨插栓帽頭直徑時能切斷內部電路之特別技術。 The present invention provides a tamper-resistant electronic seal, and more particularly, a special technique for thieves to cut internal circuitry when grinding the diameter of the plug cap.
第一圖係揭示一種由插栓91及栓座92組成之傳統電子封條90，其插栓91內設有RFID晶片，至於栓座92則設有內部天線，配合插栓91插掣栓座92而鎖住門栓93，即可閉鎖貨櫃門94，且令RFID晶片與栓座92內部天線電氣連接，並使插栓91形成一外部天線。此時海關只要以一識別主機發射出一電磁波供該外部天線接收，RFID晶片就能將此電磁波所提供之能量轉換一電壓，並利用該電壓將儲存於該RFID晶片之識別碼調製成一電磁波，然後由該外部天線發射出去，使識別主機在收到該識別電磁波並予以解調後，就能夠獲得該識別碼，並根據該識別碼而獲知該貨櫃之身份，從而達到自動化識別及管理之功能，此外，當竊賊欲竊取貨櫃內部貨物時而將插栓91剪斷時，海關識別主機也能透過識別電磁波而達到告警之功能。 The first figure discloses a conventional electronic seal 90 composed of a plug 91 and a socket 92. The plug 91 has an RFID chip therein, and the plug 92 is provided with an internal antenna, and the plug 91 is inserted into the plug 92. By locking the door latch 93, the container door 94 can be locked, and the RFID chip is electrically connected to the internal antenna of the socket 92, and the plug 91 forms an external antenna. At this time, the customs can transmit an electromagnetic wave to the external antenna by an identification host, and the RFID chip can convert the energy provided by the electromagnetic wave into a voltage, and use the voltage to modulate the identification code stored in the RFID chip into an electromagnetic wave. Then, the external antenna is transmitted, so that the identification host can obtain the identification code after receiving the identification electromagnetic wave and demodulate it, and obtain the identity of the container according to the identification code, thereby achieving the function of automatic identification and management. In addition, when the thief wants to steal the internal cargo of the container and cut the plug 91, the customs identification host can also realize the alarm function by recognizing the electromagnetic wave.
可是，便有竊賊發現只要如第二圖所示的以砂輪機95將插栓91之帽頭911直徑磨至小於門栓93之栓孔9 31，如此便不會破壞到電子封條90內部電路運作，然後將插栓91由栓孔931抽出，繼之，便能打開貨櫃門而進行偷竊，待偷竊完之後，只須將插栓91反向的***栓孔931，使栓座92倒扣於門栓93上，即可使電子封條90能一如以往的正常運作，造成海關識別主機無從告警。 However, a thief finds that the diameter of the cap 911 of the plug 91 is ground to a pinhole 9 smaller than the bolt 93 by the grinder 95 as shown in the second figure. 31, so that the internal circuit operation of the electronic seal 90 is not destroyed, and then the plug 91 is pulled out by the bolt hole 931, and then the container door can be opened for theft. After theft, the plug 91 only needs to be reversed. The insertion of the bolt hole 931 causes the bolt seat 92 to be buckled on the bolt 93, so that the electronic seal 90 can operate normally as before, and the customs identification host has no alarm.
有鑑於此，本發明人乃以多年的專業經驗與心得，經不斷構思、創研，乃研發出此本發明。 In view of this, the present inventors have developed this invention with years of professional experience and experience, through continuous conception and research.
本發明係提供一種防竄改之電子封條，其主要改良乃在於插栓，該插栓至少包括有：一具導電性之栓本體，其具有一桿身、一徑向外擴於桿身頂端之帽頭、一貫穿桿身及帽頭之容孔、及一安裝於桿身底緣之第一卡合配置；該容孔頂緣則具有一內徑較大之沉頭穴，該沉頭穴內徑係不小於門栓之栓孔內徑，其頂端係以一上蓋封閉，栓本體外周成型有一能包覆上蓋之塑膠防水套；以及一安裝於容孔之電路板，其具有一控制迴路，此控制迴路係由一電路配線、一連通電路配線之下接點、一連通電路配線之上接點、一安裝於電路配線之RFID晶片組成；該電路板另於容孔下方安裝有一較容孔大之第三扣部，以及在頂端安裝有一抵接沉頭穴底端之下彈片、一抵接於上蓋底面之上彈片，用以將電路板彈性懸吊於容孔中，並控制上接點無法與上蓋作電氣連接，但，在第一卡合配置***栓座而無法脫離時，其下接點能提 供RFID晶片與栓座內部天線電氣連接，且令上接點上移與上蓋作電氣連接，使栓本體形成RFID晶片之外部天線。 The present invention provides a tamper-resistant electronic seal, the main improvement of which is a plug, the plug includes at least: a conductive plug body having a shaft and a radial extension to the top of the shaft a cap head, a through hole penetrating the shaft and the cap, and a first engaging arrangement mounted on the bottom edge of the shaft; the top edge of the bore has a countersink having a larger inner diameter, the countersink The inner diameter is not less than the inner diameter of the bolt hole of the door bolt, and the top end is closed by an upper cover. The outer circumference of the bolt is formed with a plastic waterproof cover capable of covering the upper cover; and a circuit board mounted on the hole has a control loop. The control circuit is composed of a circuit wiring, a contact under the communication circuit wiring, a contact on the communication circuit wiring, and an RFID chip mounted on the circuit wiring; the circuit board is further mounted under the hole. The third buckle of the hole, and a spring piece at the top end of the bottom of the countersunk hole, and a spring piece abutting on the bottom surface of the upper cover for elastically suspending the circuit board in the hole and controlling The contact cannot be electrically connected to the top cover, but in the first When a snap fit is inserted into the socket and cannot be disengaged, the lower contact can be raised The RFID chip is electrically connected to the internal antenna of the socket, and the upper contact is moved up and electrically connected to the upper cover, so that the plug body forms an external antenna of the RFID chip.
藉由上述配置，使竊賊在研磨插栓帽頭直徑時，本發明能確實切斷內部電路，用以使電子封條仍具有既有之告警功能，藉以達到改善傳統電子封條被欺騙之誤判情形，其確實為電子封條防盜性提出一有效解決之新穎技術。 With the above configuration, the thief can surely cut off the internal circuit when grinding the diameter of the plug cap, so that the electronic seal still has the existing alarm function, thereby improving the misjudgment of the traditional electronic seal being deceived. It does provide an innovative technology for the effective prevention of electronic seals.
A‧‧‧插栓 A‧‧‧ plug
B‧‧‧栓座 B‧‧‧ pedestal
B1‧‧‧第二卡合配置 B1‧‧‧Second snap configuration
B2‧‧‧內部天線 B2‧‧‧Internal antenna
B3‧‧‧第二卡掣部 B3‧‧‧Second Card Department
C‧‧‧門栓 C‧‧‧door bolt
C1‧‧‧栓孔 C1‧‧‧Bolt hole
10‧‧‧栓本體 10‧‧‧ 栓 body
11‧‧‧桿身 11‧‧‧ shaft
12‧‧‧帽頭 12‧‧‧ hat head
13‧‧‧容孔 13‧‧‧ hole
13A‧‧‧沉頭穴 13A‧‧‧ Shentou
13B‧‧‧定位穴 13B‧‧‧Positioning
14‧‧‧套環 14‧‧‧ collar
15‧‧‧上蓋 15‧‧‧Upper cover
16‧‧‧第一卡合配置 16‧‧‧First snap configuration
17‧‧‧防水套 17‧‧‧Waterproof case
171‧‧‧第一卡掣部 171‧‧‧ First card department
20‧‧‧電路板 20‧‧‧ boards
21‧‧‧連結孔 21‧‧‧Link hole
22‧‧‧頸縮部 22‧‧‧neck
23‧‧‧控制迴路 23‧‧‧Control loop
231‧‧‧電路配線 231‧‧‧Circuit wiring
232‧‧‧下接點 232‧‧‧Contacts
233‧‧‧上接點 233‧‧‧Contacts
234‧‧‧RFID晶片 234‧‧‧RFID chip
235‧‧‧電池 235‧‧‧Battery
30‧‧‧內桿 30‧‧‧ inner rod
31‧‧‧連結柱 31‧‧‧ Linked Column
32‧‧‧第二扣部 32‧‧‧Second buckle
321‧‧‧下彈片 321‧‧‧Shear
322‧‧‧上彈片 322‧‧‧Upper film
33‧‧‧第三扣部 33‧‧‧ Third buckle
331‧‧‧插槽 331‧‧‧ slots
90‧‧‧電子封條 90‧‧‧Electronic seal
91‧‧‧插栓 91‧‧‧plug
911‧‧‧帽頭 911‧‧‧ hat head
92‧‧‧栓座 92‧‧‧ pedestal
93‧‧‧門栓 93‧‧‧door bolt
931‧‧‧栓孔 931‧‧‧Bolt hole
94‧‧‧貨櫃門 94‧‧‧ container door
95‧‧‧砂輪機 95‧‧‧ Grinder
第一圖係習用電子封條之實施示意圖。 The first figure is a schematic diagram of the implementation of the conventional electronic seal.
第二圖係破解習用電子封條之動作示意圖。 The second picture is a schematic diagram of the action of cracking the conventional electronic seal.
第三圖係本發明之分解示意圖。 The third figure is an exploded schematic view of the present invention.
第四圖係本發明內桿及電路板之立體組合示意圖。 The fourth figure is a three-dimensional combination diagram of the inner rod and the circuit board of the present invention.
第五圖係本發明插栓、栓座呈分離狀態時之位置示意圖。 The fifth figure is a schematic view of the position of the plug and the socket in the separated state of the present invention.
第六圖係第五圖之剖面示意圖。 The sixth figure is a schematic cross-sectional view of the fifth figure.
第七圖係本發明插栓***栓孔、栓座後之組合剖面示意圖。 The seventh figure is a schematic cross-sectional view of the plug of the present invention inserted into the plug hole and the plug seat.
第八圖係本發明之防盜實施示意圖。 The eighth figure is a schematic diagram of the anti-theft implementation of the present invention.
請參看第三至八圖，本發明係由插栓A及栓座B組成之電子封條，該插栓A能由上向下插掣栓座B而鎖住門栓C，用以閉鎖貨櫃門，所述之栓座B、門栓C均為現有既有之技術，本發明便不贅述，本發明特徵乃在於插栓A，該插栓A至少包括有： 一具導電性之栓本體10，該栓本體10具有一桿身11、一徑向外擴於桿身11頂端之帽頭12、一沿軸向貫穿桿身11及帽頭12之容孔13、一套合於桿身11外周且抵接於帽頭12底端之套環14，所述帽頭12直徑係大於門栓C之栓孔C1內徑，使之可以靠抵於門栓C上，而容孔13頂緣則具有一內徑較大之沉頭穴13A，令該沉頭穴13A內徑不小於栓孔C1內徑，使之形成栓本體10之第一扣部，該沉頭穴13A頂緣更具有一內徑較大之定位穴13B，定位穴13B係能為一上蓋15封閉，該桿身11另於底緣外周則安裝有第一卡合配置16；栓本體10外周成型有一能包覆套環14、上蓋15之塑膠防水套17，且令該栓本體10位於套環14之直徑恰能呈靜配合的***栓孔C1中，以使貨櫃車在行駛的過程中，栓座B不會左右搖晃的碰撞貨櫃門，用以確保整體使用壽命及效能；該防水套17更沿栓本體10外周而向下突出有第一卡掣部171；一長條狀電路板20，其係安裝於容孔13中，而具有貫穿左右兩面之連結孔21，且底緣具有朝下漸縮之頸縮部22，更在表面設有一控制迴路23，此控制迴路23具有一電路配線231、一連通電路配線231之下接點232、一連通電路配線231之上接點233、一組裝於電路配線231之RFID晶片234、一能供應RFID晶片234電源之電池235組成之，所述下接點232係位於頸縮部22之底面，至於上接點233係位於電路板20頂端；以及 一絕緣之內桿30，其係具有能供電路板20連結孔21安裝之連結柱31，用以使電路板20能透過該內桿30而組設於容孔13中，更具有一接設於內桿30頂緣之第二扣部32，以及設於內桿30底端之第三扣部33；此第二扣部32係由兩呈叉狀向下延伸之下彈片321、一向上彎曲之上彈片322所組成，其下彈片321係能抵接沉頭穴13A底端，用以扣入第一扣部中，至於上彈片322則是能彈性抵接於上蓋15底面，令該下彈片321、上彈片322能將內桿30及電路板20彈性懸吊於容孔13中，以限制內桿30及電路板20無法由容孔13底端脫出，在此同時，電路板30之上接點233則是位於上彈片322底緣，使之無法與上蓋15作電氣連接，令栓本體10不會形成與RFID晶片234電氣連接之外部天線；至於第三扣部33則是位於容孔13下方，其外徑係較容孔13大，以便在上蓋15遭破壞時，該第三扣部33能限制內桿30及電路板20無法由容孔13頂端脫出，而第三扣部33更設有供頸縮部22配合之插槽331，且令下接點232略突出第三扣部33底面即可。 Please refer to the third to eighth figures. The present invention is an electronic seal composed of a plug A and a socket B. The plug A can be inserted from the upper and lower plugs B to lock the bolt C for locking the container door. The plug B and the door latch C are all existing technologies, and the present invention is not described. The present invention is characterized by a plug A, and the plug A includes at least: An electrically conductive plug body 10 having a shaft 11 , a cap 12 radially outwardly extending from the top end of the shaft 11 , and a bore 13 extending axially through the shaft 11 and the cap 12 a sleeve 14 that fits around the outer periphery of the shaft 11 and abuts against the bottom end of the cap head 12, the diameter of the cap head 12 is greater than the inner diameter of the bolt hole C1 of the bolt C so as to be able to abut against the bolt C The top edge of the hole 13 has a countersunk hole 13A having a larger inner diameter, so that the inner diameter of the countersunk hole 13A is not smaller than the inner diameter of the bolt hole C1, so that the first buckle portion of the plug body 10 is formed. The top edge of the 13D of the Shentou point has a positioning hole 13B having a larger inner diameter, and the positioning hole 13B can be closed by an upper cover 15 which is mounted with a first engaging arrangement 16 on the outer periphery of the bottom edge; 10, a plastic waterproof cover 17 capable of covering the collar 14 and the upper cover 15 is formed on the outer periphery, and the plug body 10 is placed in the insertion bolt hole C1 of the diameter of the collar 14 which can be statically matched, so that the container truck is traveling. During the process, the socket B does not shake the collision container door to ensure the overall service life and performance; the waterproof sleeve 17 further protrudes downward along the outer circumference of the bolt body 10 with the first latch portion 17 1; a long strip circuit board 20, which is mounted in the hole 13 and has a connecting hole 21 extending through the left and right sides, and the bottom edge has a neck portion 22 which is tapered downward, and a control loop is provided on the surface. 23, the control circuit 23 has a circuit wiring 231, a contact circuit 231 under the contact 232, a communication circuit wiring 231 upper contact 233, an RFID chip 234 assembled in the circuit wiring 231, an RFID chip can be supplied The 234 power supply battery 235 is formed, the lower contact 232 is located on the bottom surface of the neck portion 22, and the upper contact 233 is located at the top of the circuit board 20; An insulated inner rod 30 having a connecting post 31 for mounting the connecting hole 21 of the circuit board 20 for allowing the circuit board 20 to be disposed in the bore 13 through the inner rod 30, and has a connection a second fastening portion 32 on the top edge of the inner rod 30, and a third fastening portion 33 disposed at the bottom end of the inner rod 30; the second fastening portion 32 is formed by two forks extending downwardly downwardly from the elastic piece 321 and an upward direction. The upper elastic piece 321 is configured to be abutted against the bottom end of the countersunk hole 13A for being buckled into the first buckle portion, and the upper elastic piece 322 is elastically abutted against the bottom surface of the upper cover 15 The lower elastic piece 321 and the upper elastic piece 322 can elastically suspend the inner rod 30 and the circuit board 20 in the hole 13 to limit the inner rod 30 and the circuit board 20 from being removed from the bottom end of the hole 13 at the same time, the circuit board The upper contact 233 of the 30 is located at the bottom edge of the upper elastic piece 322 so that it cannot be electrically connected to the upper cover 15, so that the plug body 10 does not form an external antenna electrically connected to the RFID chip 234; and the third buckle portion 33 is Located below the aperture 13 , the outer diameter of the aperture 13 is larger than the aperture 13 so that the third buckle 33 can limit the inner rod 30 and the circuit board 20 when the upper cover 15 is damaged. 13 emerge from the top receiving aperture, the third fastening portion 33 further is provided with slots 331 for fitting the neck portion 22, the contact 232 and the bottom surface 33 to protrude slightly so that the third fastening portion.
請另外配合第五、六及七圖觀之，在插栓A下半部依序***門栓C栓孔C1、栓座B中，而使第一卡合配置16與栓座B之第二卡合配置B1定位而無法脫離，用以鎖住門栓C而閉鎖貨櫃門，在此之前，第三扣部33係能壓迫栓座B之內部天線B2彈性變形，才使下接點232抵接該內部天線B2，俾令 RFID晶片234能與栓座B內部之內部天線B2作電氣連接，且能克服上彈片322而推動內桿30及電路板20上升設定距離，以便提供一預設彈力，用以使下接點232能更為穩定的接觸內部天線B2，同時令上接點233恰能上移而與上蓋15作電氣連接，以使栓本體10與RFID晶片234電氣連接而形成一外部天線，用以構成一電子封條之使用模式；在此同時，該栓座B更具有與第一卡掣部171匹配之第二卡掣部B3，用以使插栓A在***栓座B後無法自轉，進而確保下接點232能穩定的抵接內部天線B2。 Please cooperate with the fifth, sixth and seventh diagrams, insert the bolt C hole C1 and the bolt base B in the lower half of the plug A, and make the first engagement arrangement 16 and the second of the socket B. The engagement configuration B1 is positioned and cannot be disengaged, and is used to lock the door latch C and lock the container door. Before this, the third fastening portion 33 can press the internal antenna B2 of the bolt base B to be elastically deformed, so that the lower contact point 232 is resisted. Connect the internal antenna B2, order The RFID chip 234 can be electrically connected to the internal antenna B2 inside the socket B, and can overcome the upper elastic piece 322 to push the inner rod 30 and the circuit board 20 upward by a set distance, so as to provide a predetermined elastic force for the lower contact 232. The internal antenna B2 can be more stably contacted, and the upper contact 233 can be moved up and electrically connected with the upper cover 15 to electrically connect the plug body 10 and the RFID chip 234 to form an external antenna for forming an electronic device. The use mode of the seal; at the same time, the bolt B further has a second latching portion B3 matching the first latching portion 171, so that the plug A cannot be rotated after inserting the bolt seat B, thereby ensuring the lower joint Point 232 can stably abut inner antenna B2.
請配合第七及八圖觀之，其係說明竊賊一將插栓A之帽頭12直徑磨至小於栓孔C1時，本發明沉頭穴13A便會完全被破壞掉，使上蓋15自動脫離插栓A，進而中斷上接點233與上蓋15之電氣連接，令栓本體10無法形成RFID晶片234之外部天線，更重要的是，上蓋15會釋放上彈片322施加下接點232接觸內部天線B2之預壓作用，配合內部天線B2之彈性回復，進而使得第三扣部33能中斷下接點232與內部天線B2之電氣連接，如此一來，不管外部天線或內部天線B2都無法接收識別主機發射出之電磁波，更無從發射出RFID晶片234所設定之識別電磁波，俾能有效告警識別主機所在之地方(例如海關)，用以達到更佳之自動化識別及管理作用。 Please cooperate with the seventh and eighth diagrams, which means that when the thief grinds the diameter of the cap 12 of the plug A to be smaller than the bolt hole C1, the countersunk head 13A of the present invention is completely destroyed, and the upper cover 15 is automatically disengaged. The plug A, thereby interrupting the electrical connection between the upper contact 233 and the upper cover 15, prevents the plug body 10 from forming an external antenna of the RFID chip 234, and more importantly, the upper cover 15 releases the upper elastic piece 322 and applies the lower contact 232 to contact the internal antenna. The preloading action of B2 cooperates with the elastic recovery of the internal antenna B2, so that the third fastening portion 33 can interrupt the electrical connection between the lower contact 232 and the internal antenna B2, so that the external antenna or the internal antenna B2 cannot receive the identification. The electromagnetic wave emitted by the host computer does not emit the identification electromagnetic wave set by the RFID chip 234, and can effectively identify the place where the host is located (for example, customs), so as to achieve better automatic identification and management.
在此特別說明，本發明只須單純將第三及四圖所示之第二扣部32直接鉚固或螺固於電路板20頂緣，以及將第三 扣部33直接固設於電路板20底端，即可以簡化內桿30之設置，其亦屬本發明。 Specifically, the present invention only needs to directly rive or screw the second fastening portion 32 shown in the third and fourth figures to the top edge of the circuit board 20, and the third The buckle portion 33 is directly fixed to the bottom end of the circuit board 20, that is, the arrangement of the inner rod 30 can be simplified, which is also the present invention.
綜上所述，當竊賊在研磨插栓帽頭直徑時，本發明能確實切斷內部電路，用以使電子封條仍具有既有之告警功能，是一技術理念上的高度創作，應符專利申請要件，爰依法提出申請。惟以上所述者，僅為本發明之一較佳實施例而已，大凡依本發明申請專利範圍所作之均等變化與修飾，皆應仍屬本發明涵蓋之範圍內。 In summary, when the thief is grinding the diameter of the plug cap, the invention can surely cut off the internal circuit, so that the electronic seal still has the existing alarm function, which is a highly creative concept, and should be patented. Apply for the requirements and apply in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the equivalent variations and modifications of the scope of the present invention should still be within the scope of the present invention.
A‧‧‧插栓 A‧‧‧ plug
B‧‧‧栓座 B‧‧‧ pedestal
B1‧‧‧第二卡合配置 B1‧‧‧Second snap configuration
B2‧‧‧內部天線 B2‧‧‧Internal antenna
10‧‧‧栓本體 10‧‧‧ 栓 body
11‧‧‧桿身 11‧‧‧ shaft
12‧‧‧帽頭 12‧‧‧ hat head
13‧‧‧容孔 13‧‧‧ hole
13A‧‧‧沉頭穴 13A‧‧‧ Shentou
13B‧‧‧定位穴 13B‧‧‧Positioning
14‧‧‧套環 14‧‧‧ collar
15‧‧‧上蓋 15‧‧‧Upper cover
16‧‧‧第一卡合配置 16‧‧‧First snap configuration
17‧‧‧防水套 17‧‧‧Waterproof case
20‧‧‧電路板 20‧‧‧ boards
231‧‧‧電路配線 231‧‧‧Circuit wiring
232‧‧‧下接點 232‧‧‧Contacts
233‧‧‧上接點 233‧‧‧Contacts
234‧‧‧RFID晶片 234‧‧‧RFID chip
235‧‧‧電池 235‧‧‧Battery
321‧‧‧下彈片 321‧‧‧Shear
322‧‧‧上彈片 322‧‧‧Upper film
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103118723A TWI555903B (en) | 2014-05-29 | 2014-05-29 | Anti-tampering of electronic seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103118723A TWI555903B (en) | 2014-05-29 | 2014-05-29 | Anti-tampering of electronic seals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201544670A true TW201544670A (en) | 2015-12-01 |
| TWI555903B TWI555903B (en) | 2016-11-01 |
Family
ID=55406990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103118723A TWI555903B (en) | 2014-05-29 | 2014-05-29 | Anti-tampering of electronic seals |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI555903B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110826677A (en) * | 2018-08-14 | 2020-02-21 | 陈志权 | Improved electronic seal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI735274B (en) * | 2020-07-02 | 2021-08-01 | 陳誌權 | Electronic seal of multi-frequency type |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200936866A (en) * | 2008-02-26 | 2009-09-01 | Jin-Hao Chaocheng | RFID electronic lock |
| TWM358380U (en) * | 2008-10-24 | 2009-06-01 | yong-ping Liu | Electronic seal |
| TW201224263A (en) * | 2010-12-06 | 2012-06-16 | zhi-quan Chen | E-seal |
| TWI418693B (en) * | 2011-06-20 | 2013-12-11 | Chung Shan Inst Of Science | An electronic sealing device having a tamper detecting circuit and a method of sealing the door using an electronic sealing device |
-
2014
- 2014-05-29 TW TW103118723A patent/TWI555903B/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110826677A (en) * | 2018-08-14 | 2020-02-21 | 陈志权 | Improved electronic seal |
| CN110826677B (en) * | 2018-08-14 | 2023-07-18 | 陈志权 | Electronic seal |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI555903B (en) | 2016-11-01 |
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