WO2016172918A1 - 封贴式防盗装置及封贴传感器 - Google Patents

封贴式防盗装置及封贴传感器 Download PDF

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Publication number
WO2016172918A1
WO2016172918A1 PCT/CN2015/077959 CN2015077959W WO2016172918A1 WO 2016172918 A1 WO2016172918 A1 WO 2016172918A1 CN 2015077959 W CN2015077959 W CN 2015077959W WO 2016172918 A1 WO2016172918 A1 WO 2016172918A1
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Prior art keywords
conductive medium
terminals
circuit board
host
sensor
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PCT/CN2015/077959
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English (en)
French (fr)
Inventor
武筱华
李小龙
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Quasion股份有限公司
武筱华
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Application filed by Quasion股份有限公司, 武筱华 filed Critical Quasion股份有限公司
Priority to PCT/CN2015/077959 priority Critical patent/WO2016172918A1/zh
Publication of WO2016172918A1 publication Critical patent/WO2016172918A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation

Definitions

  • the invention relates to the field of security, in particular to a sealing anti-theft device and a sealing sensor.
  • the anti-theft device can be used to protect it.
  • a retail or display electronic device such as a mobile phone, a digital camera, a tablet computer, a watch, an electric toothbrush, etc.
  • the electronic device can usually be electrically connected to an anti-theft off-hook device on the display stand.
  • a customer wants to try to operate an electronic device to understand its function, he can operate directly on the electronic device, but cannot disconnect it from the anti-theft off-hook device. If the electronic device is forcibly disconnected, the anti-theft off-hook device will give an alarm.
  • the anti-theft off-hook device is generally composed of a host and an anti-theft sensor.
  • the sensor realizes monitoring of the protected device, and the relevant signal is sent to the main control module for processing, and the main control module processes the signal of the sensor and makes an alarm.
  • the sensing module is an anti-theft sensor
  • the host computer integrates a host module, a storage module, and a data acquisition and alarm processing module.
  • the current product anti-theft sensors are relatively large in size.
  • wearable devices such as smart watches, as well as traditional watches and jewelry
  • the surface of the protected equipment is generally complex and irregular.
  • the curved surface of the existing anti-theft device is complicated in connection, resulting in a bad user experience.
  • the technical problem to be solved by the present invention is that the existing anti-theft device is inconvenient in connection with the protected device having a complicated surface of the protected article and is not conducive to the normal operation of the protected device.
  • the present invention provides a seal type anti-theft device including a seal sensor and a host, the seal sensor and the host form a loop via a signal line;
  • the seal sensor includes a circuit board and a conductive medium
  • the conductive medium can be fixedly connected to the protected device;
  • the circuit board has two terminals, the two terminals are connected to the circuit; when the conductive medium and the two terminals are electrically connected
  • the host detects that the state of the loop is normal and does not perform an alarm action; when the conductive medium is in non-electrical contact with at least one of the two terminals, the host detects the loop The state is abnormal, and an alarm action is performed; wherein the circuit board and the conductive medium are both flexible.
  • the antitheft device of the present invention can be adhered to an article having an irregular surface.
  • the conductive medium and the circuit board when the conductive medium is in electrical contact with the two terminals, the conductive medium and the circuit board have a resistance F1, F1 ⁇ 0; When the conductive medium is fixedly connected to the protected device, the conductive medium and the protected device have a resistance to prevent the two from coming off, F2>F1.
  • F1 F1 ⁇ 0
  • the circuit board is fixedly connected with the protected device to increase the adhesion strength and make the sealing sensor more integrated.
  • the conductive medium is fixedly connected to the protected device through a first connecting member
  • the circuit board is fixedly connected to the protected device through a second connecting member
  • the first connecting member And the second connector are respectively connected to different regions of the protected device.
  • the first connecting member and the second connecting member are both flexible connecting members, such as double-sided tape.
  • the conductive medium may be a conductive cloth.
  • the host has an output port and a detection port, and the loop is formed by the two terminals between the output port and the detection port; the output port is for outputting a fixed voltage
  • the voltage value connected to the detection port is used as a detection value for the host to determine whether the loop is abnormal.
  • the detection port is grounded through a resistor, the ratio of the resistance to the resistance value of the flexible conductive medium being between 0.1 and 10.
  • the access voltage U of the detection port of the host when the conductive medium is in electrical contact with the two terminals, the access voltage U of the detection port of the host is a normal voltage U0, and no alarm action is performed; when the host When the absolute value of the difference between the access voltage U of the detection port and the normal voltage U0 is greater than a threshold, the host determines that the state of the loop is abnormal and performs an alarm action.
  • the invention also proposes a corresponding sealing sensor comprising a circuit board and a conductive medium, the circuit board having two terminals for accessing an alarm circuit of an anti-theft device, the conductive medium capable of A fixed connection is made to the protected device, wherein the circuit board and the conductive medium are both flexible.
  • the conductivity of the conductive medium can range from 10 ohms to 100K ohms.
  • the sealing type anti-theft device and the sealing sensor of the invention are very simple to connect with the protected device, and do not need complicated connection and setting, and do not affect the user experience goods, and are convenient to use.
  • FIG. 1 is a schematic structural view of a seal type anti-theft device of the present invention
  • FIG. 2 is a schematic view showing the working principle of the seal type anti-theft device of the present invention.
  • Figure 3 is a schematic view showing the assembly of one embodiment of the seal type anti-theft device of the present invention.
  • Figure 4 is a schematic view of another embodiment of the closure type antitheft device of the present invention.
  • Figure 5 is a schematic diagram of an alarm of another embodiment of the closure type anti-theft device of the present invention.
  • the seal type anti-theft device of the present invention comprises a seal sensor 1 and a main body 2, and the seal sensor 1 and the main unit 2 form a loop via a signal line 3.
  • the host 2 is configured to detect whether the state of the loop is normal or abnormal.
  • the cover sensor 1 comprises a circuit board 11 and a conductive medium 12 having two terminals, the two terminals 111, 112 being connected to the circuit.
  • the host 2 detects that the state of the loop is normal, and the host 2 does not perform an alarm action; when the conductive medium 12 and the When at least one of the two terminals 111, 112 is not in electrical contact, the host 2 detects that the state of the loop is abnormal and performs an alarm action.
  • the abnormal state Either the two terminals 111, 112 are disconnected, or the two terminals 111, 112 are short-circuited by other conductive articles.
  • the wiring board 11 and the conductive medium 12 are both flexible.
  • the flexible wiring board 11 may be a flexible printed wiring board which has a thin thickness and good bending property.
  • the two terminals 111, 112 on the flexible circuit board 11 may be electrically conductive contacts, and the terminals 111, 112 may be connected to the signal line 3 connected to the circuit board by wires engraved on the circuit board.
  • the flexible conductive medium 12 may be composed of a conductive material having flexibility, such as a conductive cloth, or a conductive medium such as conductive copper foil or conductive paper of silk screen silver paste, preferably a conductive cloth.
  • the conductive cloth is a conductive fiber cloth which is treated with a fiber cloth as a base material and treated with a metal plating layer to have metal conductive properties.
  • the flexible conductive medium 12 and the flexible wiring board 11 may not have any resistance to prevent the two from coming off, and may also have a weak resistance to prevent the two from coming off, for example, through a weak connection force. Snap-on connection. As shown in FIG. 1 , the flexible conductive medium 12 and the flexible circuit board 11 can be disposed in a certain snap connection relationship, so that when the two are separated from each other, a certain resistance F1 needs to be overcome (F1 ⁇ 0, when F1 is 0, There is no resistance between them to prevent mutual detachment).
  • the flexible conductive medium 12 and the protected device S are fixedly connectable, and the two are separated from each other to overcome a certain resistance F2, F2>F1.
  • F2, F2>F1 a certain resistance
  • the flexible conductive medium 12 is fixedly connected to the protected device S and the two terminals 111, 112 on the flexible circuit board 11 are in contact with the conductive contacts to form the circuit, if an external force is forced to be protected
  • the separation position will be between the flexible conductive medium 12 and the terminals 111, 112 of the flexible wiring board 11, rather than between the flexible conductive medium 12 and the protected device S.
  • the flexible circuit board 11 and the protected device S can be fixedly connected to each other to increase the adhesion between the sealing sensor 1 and the protected device S, and the components of the sealing sensor can be adhered as a whole. Attached to the protected device S.
  • the flexible conductive medium 12 is pasted to the protected device S through the first connecting member 13, and the flexible circuit board 11 is pasted to the protected device S through the second connecting member 14,
  • the first connecting member 13 and the second connecting member 14 are respectively connected to different regions of the protected device S.
  • the first connector 13 and the second connector 14 are also preferably flexible connectors, such as double-sided tape.
  • FIG. 2 is a schematic illustration of the working principle of one embodiment of the present invention.
  • the sealing sensor 1 of the sealing anti-theft device is attached to the protected device S in use, and the flexible conductive medium 12 is a conductive cloth, and its resistance is small and negligible.
  • the flexible wiring board 11 and the conductive cloth 12 of the sealing sensor 1 are electrically in contact with each other and connected by a weak snap.
  • the protected device S may be an item having an irregular surface such as a smart watch, a mobile phone, a portable computer, a tablet computer, an electronic paper book, a digital camera, a general watch, an electric toothbrush, a jewelry, or the like.
  • the terminals 111, 112 of the cover sensor 1 are connected to the host 2 via a signal line 3.
  • the terminals 111, 112 of the flexible wiring board 11 are located in a small portion of the entire circuit board 11, such as an intermediate portion, and the conductive cloth 12 covers only the portion of the terminal where the terminals 111, 112 are located and one side thereof.
  • the (lower surface) is in contact with the terminals 111, 112, and the other side (upper surface) is adhered with the first double-sided tape (first connector).
  • a second double-sided tape is adhered to the peripheral regions of the terminals 111, 112 of the flexible wiring board. It can be seen that the first double-sided tape 13 and the second double-sided tape 14 are separated from each other.
  • the sealing sensor and the antitheft device of the present invention are used, the first double-sided tape 13 and the second double-sided tape 14 are adhered together to the protected device S.
  • the conductive cloth 12 of the sealing sensor 1 is pasted on the surface of the protected device S by the first double-sided tape 13
  • the flexible wiring board 11 is pasted on the surface of the protected device S by the second double-sided tape 14.
  • the first double-sided tape has a small area and is located inside the second double-sided tape 14.
  • the two double-sided tapes are not in contact with each other but may have different thicknesses such that the adhesive faces on the outer sides thereof are on the same plane to facilitate mutual adhesion to the device S to be protected. Since both the flexible wiring board 11 and the flexible conductive medium 12 have flexibility, the surface of the protected device S may be a flat surface or a curved surface.
  • the conductive cloth 12 and the flexible circuit board 11 are in contact with each other to establish an electrical connection.
  • the adhesion of the first double-sided tape 13 is greater than that of the conductive cloth 12 and the terminal 111.
  • the flexible circuit board 11 of the sealing sensor 1 is separated from the conductive cloth 12 , and the conductive cloth 12 is still stuck on the protected device S. . Since the flexible circuit board 11 and the conductive cloth 12 are disconnected, the state of the host detection circuit is off, and an alarm action is performed. In this embodiment, the alarm action is the host 2 sound and light alarm.
  • Fig. 3 is a schematic view showing the assembly of the anti-theft device of another embodiment of the present invention.
  • the protected device S is a smart watch, and is fixed to the booth 5 via the bracket 4.
  • the flexible circuit board 11 is pasted on the surface of the protected device S by the second double-sided tape 14, and at the same time, the conductive cloth 12 is pasted on the back surface of the protected device S through the first double-sided tape 13, forming an alarm detecting circuit.
  • the sensor mount 102 is also used to fix the anti-theft seal sensor on the protected device S, and when the user uses and experiences the protected device, the erroneous operation is prevented from causing an alarm.
  • the sensor fixing member 6 can be fixed to the protected device S by a double-sided tape, a screw, a buckle or the like.
  • the anti-theft seal sensor 1 is connected to the host 2 via the signal line 3 to establish an alarm detection circuit.
  • the alarm detecting circuit is disconnected, and the host 2 detects that the circuit state is off, and performs an alarm action.
  • the host 2 of the immobilizer has an output port VDDIO and a detection port GPIO, and an output port VDDIO is used to output a fixed voltage, and the detection port GPIO is connected.
  • the voltage value is used as the detected value for the host 2 to determine whether the loop is abnormal.
  • the two ports are respectively connected to the two terminals 111, 112 of the flexible circuit board 11 through the signal line 3, and the terminals 111, 112 are in electrical contact with the flexible conductive medium 12.
  • the output port VDDIO outputs a voltage of 2.8V
  • the detection port GPIO is grounded to GND through a resistor 7.
  • the output port VDDIO is grounded via the series of flexible conductive medium 12 and resistor 7, and the detection loop is formed by the two terminals 111, 112 between the two ports VDDIO and GPIO of the host.
  • the detection port GPIO of the master detects the voltage U at the position 71 between the resistor 7 and the flexible conductive medium 12.
  • the detection voltage U connected to the measurement port GPIO is the normal voltage U0, and no alarm action is performed.
  • the resistance of the flexible conductive medium 12 is R2, and the resistance of the resistor 7 is R1.
  • the resistance R2 is not negligible for the loop, but has a comparison with the resistor 7.
  • the resistance (the same order of magnitude, for example, the ratio between the two is between 0.1 and 10).
  • the voltage of the detected position 71 of the detection port GPIO is half of the output voltage of the output port VDDIO, that is, 1.4V
  • the flexible conductive medium 12 may be a conductive cloth with a fixed resistance value, and the resistance value may be 10 A fixed value between ohms and 100K ohms.
  • the antitheft device can determine not only whether the detection circuit is illegally disconnected, but also whether the detection circuit is illegally short-circuited. For example, when the flexible circuit board 11 is illegally short-circuited, the port voltage of the GPIO will rise to 2.8V, which is different from the normal detection voltage of 1.4V, and the host judges that the detection circuit is abnormal and performs an alarm action.
  • the host 2 can determine the access voltage U of the detection port GPIO and the If the absolute value of the difference of the normal voltage U0 is greater than a threshold value, if yes, it is determined that the state of the loop is abnormal, and an alarm operation is performed.
  • the U-shaped pin 8 (the U-shaped pin can be a pin, a paper clip, a conductive tweezers, etc.) instead of the conductive medium 12 of the sealing sensor 1 and the two ports of the host 2 to form a loop
  • Host 2 can still detect loop anomalies and perform an alarm to enhance reliability. Because the resistance value of the U-shaped pin and the resistance R2 of the flexible conductive medium 12 are different, the voltage U detected by the detection port GPIO changes with respect to the normal voltage U0 (for example, the value of the voltage U changes by 0.5 V or more), thereby 2 Determine the loop abnormality and execute the alarm.

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  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

一种封贴式防盗装置，其包括封贴传感器(1)和主机（2），封贴传感器（1）与所述主机（2）构成一个回路。封贴传感器（1）包括柔性的线路板（11）和柔性的导电介质（12），导电介质（12）能够与被保护设备（S）固定连接。线路板（11）具有两个接入所述回路中的接线端（111，112）。当导电介质（12）与所述两个接线端（111，112）电性接触时，主机（2）检测回路状态为正常，不进行报警动作；当导电介质（12）与两个接线端（111，112）不电性接触时，主机（2）检测回路状态为异常，进行报警动作。柔性导电介质（12）与被保护设备（S）的粘附力要大于柔性导电介质(12)与线路板（11）连接的附着力。还涉及具有上述结构的封贴传感器。该封贴式防盗装置及封贴传感器具有结构简单、可粘附于具有不规则表面的被保护设备的优点。

Description

封贴式防盗装置及封贴传感器 技术领域
本发明涉及安防领域，尤其涉及一种封贴式防盗装置及封贴传感器。
背景技术
在零售、展示，酒店，银行等公共服务设施场所，为了防止被展示设备和服务设施被偷盗，可用防盗装置对被其进行保护。例如在零售或展示手机、数码相机、平板电脑、手表、电动牙刷等电子设备的场所，通常可将电子设备电性连接到展示台上的一个防盗摘机装置上。当顾客想要试操作电子设备以了解其功能时，他可以直接在电子设备上操作，但不能断开其与防盗摘机装置的连接。如果电子设备被强行断开连接，防盗摘机装置会进行报警。
防盗摘机装置一般由主机和防盗传感器组成，传感器实现对被保护设备的监控，将相关信号交由主控模块处理，主控模块对传感器的信号进行处理并做出报警等动作。
例如在公开号为CN103942903A的中国专利申请公开说明书中所示，传感模块即为防盗传感器，主机则集成了主机模块、存储模块以及数据采集及报警处理模块。
目前的商品防盗传感器，多数采用机械开关的形式，体积都比较大，对于现在流行的可穿戴式设备，如智能手表，以及传统手表、珠宝来说，被保护设备的表面一般是复杂的不规则的弧面，现有的防盗装置连接方式复杂，导致用户体验不好。
发明内容
本发明所要解决的技术问题是：现有的防盗装置在应对当被保护商品的表面复杂的被保护设备时连接不便且不利于被保护设备正常操作的问题。
为解决上述问题，本发明提出一种封贴式防盗装置，包括封贴传感器和主机，所述封贴传感器与所述主机经由信号线构成一个回路；所述封贴传感器包括线路板和导电介质，所述导电介质能够与被保护设备固定连接；所述线路板具有两个接线端，所述两个接线端接入所述回路中；当所述导电介质与所述两个接线端电性接触时，所述主机检测所述回路的状态为正常，不进行报警动作；当所述导电介质与所述两个接线端中的至少一个不电性接触时，所述主机检测所述回路的状态为异常，进行报警动作；其中，所述线路板和所述导电介质均是柔性的。由此，本发明的防盗装置可粘附于具有不规则表面的物品上。
根据本发明的具体实施方式，当所述导电介质与所述两个接线端电性接触时，所述导电介质与所述线路板之间具有防止二者相脱离的阻力F1，F1≥0；当所述导电介质与所述被保护设备固定连接时，所述导电介质与被保护设备之间具有防止二者相脱离的阻力，F2＞F1。这样，当被保护设备被非法从封贴传感器上取下时，导电介质与线路板分离，引发报警劝作。
根据本发明的具体实施方式，所述线路板与所述被保护设备之间固定连接，以增加粘附强度，使封贴传感器更为一体化。
根据本发明的具体实施方式，所述导电介质通过第一连接件与所述被保护设备固定连接，所述线路板通过第二连接件与所述被保护设备固定连接，所述第一连接件和所述第二连接件分别连接至所述被保护设备的不同区域。
根据本发明的具体实施方式，所述第一连接件和所述第二连接件均为柔性连接件，如双面胶。所述导电介质则可为导电布。
根据本发明的具体实施方式，所述主机具有输出端口和检测端口，所述回路由所述输出端口和检测端口之间经由所述两个接线端构成；所述输出端口用于输出一个固定电压，所述检测端口所接入的电压值作为检测值用于主机判断所述回路是否异常。
根据本发明的具体实施方式，所述检测端口通过一个电阻接地，该电阻与所述柔性导电介质的电阻值的比值在0.1至10之间。
根据本发明的具体实施方式，当所述导电介质与所述两个接线端电性接触时，所述主机的检测端口的接入电压U为正常电压U0，不进行报警动作；当所述主机的检测端口的接入电压U与所述正常电压U0的差值的绝对值大于一个阈值时，所述主机判断所述回路的状态为异常，进行报警动作。
本发明还提出相应的封贴传感器，其包括线路板和导电介质，所述线路板具有两个接线端，该两个接线端用于接入一个防盗装置的报警回路中，所述导电介质能够与被保护设备固定连接，其中，所述线路板和导电介质均是柔性的。导电介质的阻值可以在10欧姆至100K欧姆。
本发明的封贴式防盗装置和封贴传感器与被保护设备的连接非常简单，不需要复杂连线和设置，不影响用户体验商品，方便使用。
附图说明
图1是本发明的封贴式防盗装置的结构示意图；
图2是本发明的封贴式防盗装置的工作原理示意图；
图3是本发明的封贴式防盗装置的一个实施例的装配示意图；
图4是本发明的封贴式防盗装置的另一个实施例的原理图；
图5是本发明的封贴式防盗装置的另一个实施例的报警示意图。
具体实施方式
图1是本发明的封贴式防盗装置的结构示意图。如图1所示，本发明的封贴式防盗装置包括封贴传感器1和主机2，封贴传感器1与主机2经由信号线3构成一个回路。所述主机2用于检测所述回路的状态是正常还是异常。所述封贴传感器1包括线路板11和导电介质12，该线路板11具有两个接线端，该两个接线端111、112接入所述回路中。
当所述导电介质12与该两个接线端111、112电性接触时，所述主机2检测所述回路的状态为正常，所述主机2不进行报警动作；当所述导电介质12与该两个接线端111、112中的至少一个不电性接触时，所述主机2检测所述回路的状态为异常，并进行报警动作。所述异常状态 既可以是两个接线端111、112之间被断开，也可以是两个接线端111、112之间被其他导电物品短路。
根据本发明，所述线路板11和导电介质12均是柔性的。柔性的线路板11可以是一种可挠性印刷线路板，其具有厚度薄，弯折性好的特点。柔性线路板11上的两个接线端111、112可以是是导电的触点，接线端111、112可通过刻在线路板上的导线与接入该线路板的信号线3连接。
所述柔性导电介质12可由具有柔性的导电材料构成，例如是导电布、或者导电铜箔、丝印银浆的导电纸等导电介质，优选为导电布。导电布是一种以纤维布为基材，经过处理后施以金属镀层使其具有金属导电特性而成为导电纤维布。
根据本发明，柔性导电介质12与柔性线路板11之间可以不具有任何防止二者脱离的阻力，也可以具有弱的防止二者相脱离的阻力，例如二者之间是通过弱连接力的卡扣式连接。如图1所示，柔性导电介质12与柔性线路板11可以设置成一定的卡扣连接关系，以使得二者相互脱离时需要克服一定的阻力F1(F1≥0，当F1为0时即为二者之间不具有任何防止相互脱离的阻力的存在)。
同时，柔性导电介质12与被保护设备S之间是能够固定连接的，并且，使它们二者之间相互脱离需要克服一定的阻力F2，F2＞F1。由此，当柔性导电介质12与被保护设备S固定连接后双与柔性线路板11上的两个接线端111、112是导电触点相接触以构成所述回路时，若有外力迫使被保护设备S从封贴传感器1上分离时，分离位置将位于柔性导电介质12与柔性线路板11的接线端111、112之间，而不是柔性导电介质12与被保护设备S之间。
优选地，柔性线路板11与被保护设备S之间可以相互固定连接，以增加封贴传感器1与被保护设备S之间的粘附力，更能使封贴传感器的各元件作为一个整体粘附于被保护设备S上。
在图1所示的结构中，柔性导电介质12通过第一连接件13粘贴在被保护设备S，柔性线路板11通过第二连接件14粘贴在被保护设备S， 第一连接件13与第二连接件14分别连接被保护设备S的不同区域。第一连接件13和第二连接件14亦优选为柔性连接件，如双面胶。
为使本发明的目的、技术方案和优点更加清楚明白，以下结合具体实施例对本发明作进一步的详细说明。
图2是本发明的一个实施例的工作原理示意图。该实施例中，封贴式防盗装置的封贴传感器1在使用时附着在被保护设备S上，柔性导电介质12是导电布，其电阻很小，可以忽略不计。封贴传感器1的柔性线路板11和导电布12相互电性接触并通过弱的卡合连接。被保护设备S可以是智能手表、手机、便携式电脑、平板电脑、电纸书、数码相机、普通手表、电动牙刷、珠宝等等具有不规则表面的物品。封贴传感器1的接线端111、112通过信号线3与主机2相连。
该实施例中，柔性线路板11的接线端111、112位于整个线路板11的一小部分区域，例如中间的区域，导电布12仅覆盖接线端111、112所在的该部分区域并且其一个面(下表面)与接线端111、112接触，另一个面(上表面)则粘附有第一双面胶(第一连接件)。在柔性线路板的接线端111、112的周边区域则粘附有第二双面胶。可见，第一双面胶13和第二双面胶14是相互分离的。由此，当使用本发明的封贴传感器及防盗装置时，第一双面胶13和第二双面胶14一并粘附到被保护设备S上。
也就是说，封贴传感器1的导电布12通过第一双面胶13粘贴在被保护设备S表面，柔性线路板11通过第二双面胶14粘贴在被保护设备S表面。第一双面胶面积较小，位于第二双面胶14的内部。两个双面胶之间不接触但可具有不同的厚度，以使其外侧的粘附面在同一平面上，以利于共同粘附于被保护设备S上。由于柔性线路板11和柔性导电介质12均具有柔性，因此被保护设备S的表面可以是平面，也可以是弧面。工作时，导电布12和柔性线路板11互相接触以建立电性连接，当信号线3与主机2接通时，主机2、信号线3、柔性线路板11和导电布12形成回路，该回路即为报警检测回路。
这样，由于第一双面胶13的粘附力大于导电布12与接线端111、 112之间的卡接力，当被保护设备S从所述封贴传感器1上撕下时，封贴传感器1的柔性线路板11与导电布12分离，导电布12仍然粘贴在被保护设备S上。由于柔性线路板11和导电布12断开，主机检测回路的状态为断开，执行报警动作。该实施例中，报警动作是主机2声光报警。
图3是本发明的另一个实施例的封贴防盗装置的装配示意图。如图3所示，该实施例中，被保护设备S是智能手表，通过支架4固定在展台5上。柔性线路板11通过第二双面胶14粘贴在被保护设备S表面，同时，导电布12通过第一双面胶13粘贴在被保护设备S背面，形成报警检测回路。在该实施例中，还采用传感器固定件102将防盗封贴传感器固定在被保护设备S上，当用户使用和体验被保护设备时，防止误操作造成报警。传感器固定件6可通过双面胶、螺丝、卡扣等方式固定在被保护设备S上。
同样地，在该实施例中，防盗封贴传感器1通过信号线3与主机2相连，建立报警检测回路。当信号线3断开，或者封贴传感器1被从被保护设备上S撕下时，报警检测回路断开，主机2检测回路状态为断开，执行报警动作。
图4是本发明的另一个实施例的原理图，本实施例中，防盗器的主机2具有输出端口VDDIO和检测端口GPIO，输出端口VDDIO用于输出一个固定电压，检测端口GPIO所接入的电压值作为检测值用于主机2判断回路是否异常。该两个端口通过信号线3分别与柔性线路板11的两个接线端111、112连接，接线端111、112则与柔性导电介质12电性接触。
该实施例中，输出端口VDDIO输出2.8V的电压，检测端口GPIO通过一个电阻7接地GND。由此，如图4所示，输出端口VDDIO经由串联的柔性导电介质12和电阻7后接地，检测回路则是由主机的两个端口VDDIO和GPIO之间经由两个接线端111、112构成。主机的检测端口GPIO检测的是位于电阻7与柔性导电介质12之间的位置71的电压U。当所述导电介质12与所述两个接线端111、112电性接触时，检 测端口GPIO接入的检测电压U为正常电压U0，不进行报警动作。
本实施例中，柔性导电介质12的电阻为R2，电阻7的阻值为R1，与前述实施例不同的是，该阻值R2对于回路来说不可忽略不计，而是具有与电阻7相比拟的阻值(同一数量级，例如二者的比值在0.1至10之间)。当二者阻值相同时，检测端口GPIO的检测的位置71的电压为输出端口VDDIO输出电压的一半，即1.4V，柔性导电介质12可以是固定阻值的导电布，其电阻值可以在10欧姆至100K欧姆之间的某个固定值。
这样，与前述实施例不同的是，该防盗装置不但能判断检测回路是否被非法断路，还能判断检测回路是否被非法短路。例如，当柔性线路板11被非法短路时，GPIO的端口电压会升至2.8V，不同于正常的检测电压1.4V，主机判断检测回路异常，执行报警动作。另一种情况是，当非法使用者通过其他的导电物品来取代柔性导电介质12而使所述检测回路仍为接通时，所述主机2可以判断检测端口GPIO的接入电压U与所述正常电压U0的差值的绝对值是否大于一个阈值时，如果是，则判断所述回路的状态为异常，进行报警动作。
例如，如图5所示，当用户用U形针8(U形针可以是大头针，回形针，导电的镊子等)取代封贴传感器1的导电介质12和主机2的两个端口形成回路时，主机2仍能检测到回路异常并执行报警，从而增强可靠性。因为只要U形针的阻值和柔性导电介质12的阻值R2不同，检测端口GPIO检测的电压U就会相对于正常电压U0发生变化(例如电压U的变化值在0.5V以上)，从而主机2判断回路异常，执行报警。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (18)

  1. 一种封贴式防盗装置，包括封贴传感器(1)和主机(2)，所述封贴传感器(1)与所述主机(2)经由信号线(3)构成一个回路；
    所述封贴传感器(1)包括线路板(11)和导电介质(12)，所述导电介质(12)能够与被保护设备(S)固定连接；
    所述线路板(11)具有两个接线端(111、112)，所述两个接线端(111、112)接入所述回路中；
    当所述导电介质(12)与所述两个接线端(111、112)电性接触时，所述主机(2)检测所述回路的状态为正常，不进行报警动作；当所述导电介质(12)与所述两个接线端(111、112)中的至少一个不电性接触时，所述主机(2)检测所述回路的状态为异常，进行报警动作；其中，
    所述线路板(11)和所述导电介质(12)均是柔性的。
  2. 如权利要求1所述的封贴式防盗装置，其中，当所述导电介质(12)与所述两个接线端(111、112)电性接触时，所述导电介质(12)与所述线路板(11)之间具有防止二者相脱离的阻力F1，F1≥0；当所述导电介质(12)与所述被保护设备(S)固定连接时，所述导电介质(12)与被保护设备(S)之间具有防止二者相脱离的阻力(F2)，F2＞F1。
  3. 如权利要求2所述的封贴式防盗装置，其中，所述线路板(11)与所述被保护设备(S)之间固定连接。
  4. 如权利要求3所述的封贴式防盗装置，其中，所述导电介质(12)通过第一连接件(13)与所述被保护设备(S)固定连接，所述线路板(11)通过第二连接件(14)与所述被保护设备(S)固定连接，所述第一连接件(13)和所述第二连接件(14)分别连接至所述被保护设备(S)的不同区域。
  5. 如权利要求4所述的封贴式防盗装置，其中，所述第一连接件(13)和所述第二连接件(14)均为柔性连接件。
  6. 如权利要求5所述的封贴式防盗装置，其中，所述第一连接件 (13)和所述第二连接件(13)均为双面胶。
  7. 如权利要求1至6中任一项所述的封贴式防盗装置，其中，所述导电介质(12)为导电布。
  8. 如权利要求1至6中任一项所述的封贴式防盗装置，其中，所述主机(2)具有输出端口(VDDIO)和检测端口(GPIO)，所述回路由所述输出端口(VDDIO)和检测端口(GPIO)之间经由所述两个接线端(111、112)构成；
    所述输出端口(VDDIO)用于输出一个固定电压，所述检测端口(GPIO)所接入的电压值作为检测值用于主机判断所述回路是否异常。
  9. 如权利要求8所述的封贴式防盗装置，其中，所述检测端口(GPIO)通过一个电阻(7)接地，该电阻(7)与所述柔性导电介质(12)的电阻值的比值在0.1至10之间。
  10. 如权利要求9所述的封贴式防盗装置，其中，当所述导电介质(12)与所述两个接线端(111、112)电性接触时，所述主机(2)的检测端口(GPIO)的接入电压U为正常电压U0，不进行报警动作；当所述主机(2)的检测端口(GPIO)的接入电压U与所述正常电压U0的差值的绝对值大于一个阈值时，所述主机(2)判断所述回路的状态为异常，进行报警动作。
  11. 一种封贴传感器，包括线路板(11)和导电介质(12)，所述线路板(11)具有两个接线端(111、112)，该两个接线端(111、112)用于接入一个防盗装置的报警回路中，所述导电介质(12)能够与被保护设备(S)固定连接，其中，
    所述线路板(11)和导电介质(12)均是柔性的。
  12. 如权利要求11所述的封贴传感器，其中，当所述导电介质(12)与所述两个接线端(111、112)电性接触时，所述导电介质(12)与所述线路板(11)之间具有防止二者相脱离的阻力F1，F1≥0；当所述导电介质(12)与所述被保护设备(S)固定连接时，所述导电介质(12)与所述被保护设备(S)之间具有防止二者相脱离的阻力F2，F2＞F1。
  13. 如权利要求12所述的封贴传感器，其中，所述线路板(11) 与所述被保护设备(S)之间固定连接。
  14. 如权利要求13所述的封贴传感器，其中，所述导电介质(12)通过第一连接件(13)与所述被保护设备(S)固定连接，所述线路板(11)通过第二连接件(14)与所述被保护设备(S)固定连接，所述第一连接件(13)和第二连接件(14)分别连接至所述被保护设备(S)的不同区域。
  15. 如权利要求14所述的封贴传感器，其中，所述第一连接件(13)和第二连接件(14)均为柔性连接件。
  16. 如权利要求15所述的封贴传感器，其中，所述第一连接件(13)和第二连接件(14)均为双面胶。
  17. 如权利要求11至14中任一项所述的封贴传感器，其中，所述导电介质(12)为导电布。
  18. 如权利要求11至14中任一项所述的封贴传感器，其中，所述导电介质(12)的阻值在10欧姆至100K欧姆之间。
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