WO2024027176A1 - 一种检测液体饱和度的电子标签 - Google Patents

一种检测液体饱和度的电子标签 Download PDF

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Publication number
WO2024027176A1
WO2024027176A1 PCT/CN2023/084243 CN2023084243W WO2024027176A1 WO 2024027176 A1 WO2024027176 A1 WO 2024027176A1 CN 2023084243 W CN2023084243 W CN 2023084243W WO 2024027176 A1 WO2024027176 A1 WO 2024027176A1
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Prior art keywords
electronic tag
chip
capacitive sensor
negative
positive
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PCT/CN2023/084243
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English (en)
French (fr)
Inventor
陈荣典
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北京凡享健康科技有限公司
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Publication of WO2024027176A1 publication Critical patent/WO2024027176A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/0775—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna
    • G06K19/07756—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna the connection being non-galvanic, e.g. capacitive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/227—Sensors changing capacitance upon adsorption or absorption of fluid components, e.g. electrolyte-insulator-semiconductor sensors, MOS capacitors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07775—Antenna details the antenna being on-chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07773—Antenna details
    • G06K19/07786—Antenna details the antenna being of the HF type, such as a dipole

Definitions

  • the invention relates to the technical field of RFID electronic tags, in particular to an electronic tag for detecting liquid saturation.
  • Diapers are disposable paper urinary incontinence products, mainly suitable for daily care of infants and young children, patients who cannot take care of themselves, or disabled or semi-disabled elderly people.
  • the diapers currently sold on the market can absorb urine, there are a lot of bacteria in the urine and feces. After infants and children and people who cannot take care of themselves, they cannot remind the nursing staff to change the diapers in time. Wearing and soaking for a long time often causes various skin problems for users, such as redness, swelling, eczema, bedsores, etc.
  • the purpose of the present invention is to propose an electronic tag for detecting liquid saturation in order to solve the shortcomings existing in the prior art.
  • An electronic tag for detecting liquid saturation including a substrate, a tag antenna, a chip, a connecting line and a capacitive sensor etched on the substrate, the tag antenna is connected to the positive signal terminal and the negative signal terminal of the chip, the The positive data acquisition terminal and the negative data acquisition terminal of the chip are respectively connected to the positive electrode part and the negative electrode part of the capacitive sensor through the connecting wire.
  • the tag antenna includes a closed coil, the end points of the closed coil are respectively connected to the positive signal terminal and the negative signal terminal of the chip, and the closed coil is connected to a symmetrically arranged folding coil.
  • the closed coil is in the shape of a circle, an ellipse, a triangle, or a rectangle.
  • the folding coil includes an L-shaped bending section connected to the closed coil, the L-shaped bending section is connected to a first U-shaped section and a second U-shaped section in turn, and the second U-shaped section
  • the connection has an extension section.
  • the positive electrode part of the capacitive sensor includes a vertical positive electrode connecting plate.
  • a plurality of horizontal positive electrode plates are formed on one side of the positive electrode connecting plate. The other ends of the multiple horizontal positive electrode plates are free and adjacent to each other. A gap is formed between the positive plates.
  • the negative electrode part of the capacitive sensor includes a vertical negative electrode connecting plate, a plurality of horizontal negative electrode plates are formed on one side of the negative electrode connecting plate, and the other ends of the multiple horizontal negative electrode plates are free, and the Negative plates are disposed in the gaps between the positive plates.
  • the width of the negative electrode plate is smaller than the width of the gap between the positive electrode plates, so that each of the positive electrode plates and each of the negative electrode plates do not contact and are separated from each other.
  • the substrate is an FPC substrate.
  • the tag antenna, connecting wire and capacitive sensor are one of etched copper wires, copper sheets, etched aluminum wires or silver paste printed wires.
  • the chip is a chip that conforms to both the high-frequency 13.56MHZ protocol and the ultra-high-frequency 860-960MHZ protocol.
  • the invention provides an electronic tag for detecting liquid saturation.
  • the beneficial effect is that when in use, the tag antenna is attached to the wet outer surface of the diaper (the side facing the air), so that the tag antenna part is attached to the dryest part, and There are no metal objects around the tag antenna.
  • the capacitive sensor part should be attached to the wettest part as much as possible. When the diaper is wet or dry, the capacitance is measured as a benchmark. When defecation occurs, urine flows into the capacitive sensor because urine is a conductive material. , As the amount of urine increases, the capacitance value of the capacitive sensor changes continuously. The chip sends different data to the external reader and writer based on the changes in the capacitance value, so that the nursing staff can know the user's excretion and the amount of excretion.
  • Figure 1 is a schematic structural diagram of an electronic tag for detecting liquid saturation of the present invention
  • Figure 2 is a functional block diagram of an electronic tag for detecting liquid saturation according to the present invention
  • FIG. 3 is a schematic structural diagram of the tag antenna
  • Figure 4 is a schematic structural diagram of a capacitive sensor.
  • this embodiment provides an electronic tag for detecting liquid saturation, including an FPC substrate 1.
  • the substrate 1 is etched with a tag antenna 2, a chip 3, a connecting wire 4 and a capacitive sensor 5.
  • the tag antenna 2 It is connected to the positive signal terminal and the negative signal terminal of the chip 3, and the positive data collection terminal and the negative data collection terminal of the chip 3 are respectively connected to the positive electrode part 51 and the negative electrode part 52 of the capacitive sensor 5 through the connecting wire 4.
  • the tag antenna 2 includes a closed coil 21.
  • the end points of the closed coil 21 are respectively connected to the positive signal terminal and the negative signal terminal of the chip 3.
  • the closed coil 21 is connected to a symmetrically arranged folding coil 22.
  • the closed coil 22 is rectangular, but it can also be circular, elliptical, triangular, etc., but is not limited thereto.
  • the two symmetrical folding coils 22 have the same shape and include an L-shaped bending section 221 connected to the closed coil 21.
  • the L-shaped bending section 221 is connected to a first U-shaped section 222 and a second U-shaped section 223 in turn.
  • the two U-shaped sections 223 are connected with an expansion section 224, and the expansion section 224 can increase the area of the folding coil.
  • the positive electrode portion 51 and the negative electrode portion 52 of the capacitive sensor 5 adopt a structure that is interspersed with each other.
  • the positive electrode portion 51 includes a vertical positive electrode connecting plate 511, and a plurality of horizontal positive electrodes are formed on one side of the positive electrode connecting plate 511. Plate 512, the other ends of multiple horizontal positive electrode plates 512 are free, and gaps are formed between adjacent positive electrode plates 512.
  • the negative electrode part 52 includes a vertical negative electrode connecting plate 521. A plurality of horizontal negative electrode plates 522 are formed on one side of the negative electrode connecting plate 521. The other ends of the plurality of horizontal negative electrode plates 522 are free.
  • the negative electrode plates 522 are arranged between the positive electrode plates 512. and the width of the negative electrode plate 522 is smaller than the width of the gap between the positive electrode plates 512, so that each positive electrode plate 512 and each negative electrode plate 522 do not contact each other and are separated from each other.
  • the length of the connecting wire 4 is set to 240mm, and the capacitive sensor 5 part is 40mmX20mm.
  • the simulation calculation results are shown in Table 1, which fully meets the chip capacitance sensitivity and range requirements.
  • the tag antenna 2, the connecting wire 4 and the capacitive sensor 5 are all copper wires etched on the FPC substrate 1.
  • the dielectric constant of copper is more stable with respect to changes in temperature. , Therefore, by using copper as the material, the working frequency of the tag antenna produced is more stable and the size is smaller.
  • Chip 3 uses the EM4152 chip that conforms to both the high-frequency 13.56MHZ protocol and the ultra-high-frequency 860 ⁇ 960MHZ protocol.
  • This embodiment provides an electronic tag for detecting liquid saturation.
  • a capacitive sensor is attached to the wet diaper and the information is transmitted through an ultra-high frequency electronic tag (UHF RFID).
  • UHF RFID ultra-high frequency electronic tag
  • the tag antenna is affixed to the wet outer surface of the diaper (the side facing the air), so that the tag antenna part is affixed to the driest part as much as possible, and there are no metal objects around the tag antenna, and the capacitive sensor part is affixed to the wettest part as much as possible.
  • the tag antenna After the tag antenna enters the magnetic field emitted by the reader, it receives the radio frequency signal emitted by the reader, and uses the energy obtained from the induced current to send out the capacitance value information fed back by the capacitive sensor stored in the chip. After the reader reads the information and decodes it, it sends Go to the system's information processing center for relevant data processing. That is, when the diaper is wet or dry, the capacitance sensor 5 measures the capacitance as a reference. When defecation occurs, urine flows into the capacitance sensor 5. Since urine is a conductive material, as the amount of urine increases, the capacitance sensor 5 The capacitance value increases, and the chip 3 obtains the capacitance value and transmits it to the external reader through the tag antenna 2.
  • the outdoor transmitting antenna is required to be set up at a certain height according to the communication distance, and the antenna is tilted towards the ground at a certain angle, similar to the base station antenna set up.
  • the transmitting antenna can be designed to electrically scan in the horizontal direction and have a fixed beam width in the vertical direction, so that the transmission gain can be increased to 12dBi-15dBi and the horizontal beam width is 20-30 degrees.
  • the transmitting antenna is a smart antenna. If the transmitting antenna is indoors, it can be installed on the ceiling, and multiple transmitting antennas are evenly arranged according to the room area, because the receiving antenna has greater gain in the upward direction.
  • the human body Because the human body is moving, it may be right at the concave point of the tag antenna, resulting in weak signals in this direction. There is also the occlusion of the human body, which will cause the signal in this direction of occlusion to be weak. Reflections from floors, walls, ceilings, etc. can also cause weak signals in certain directions. Therefore, the transmitting antennas are arranged in different directions on the site, and there must be at least two transmitting antennas to ensure reliable communication.

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Abstract

一种检测液体饱和度的电子标签，涉及RFID电子标签技术领域，包括基板(1)，基板(1)上蚀刻有标签天线(2)、芯片(3)、连接线(4)及电容传感器(5)，标签天线(2)与芯片(3)的正极信号端和负极信号端连接，芯片(3)的正极数据采集端和负极数据采集端分别通过连接线(4)连接电容传感器(5)的正极部及负极部。在使用时，标签天线(2)贴在尿不湿的外表面，使标签天线(2)部分贴于尽量干燥部位，并且标签天线(2)周围没有金属物件，电容传感器(5)部分尽量贴于最湿的部位，当尿不湿是干燥时，测量电容作为基准，当发生大小便后，尿液流入电容传感器(5)内，由于尿液为导电材料，随着尿液量的增加，电容传感器(5)的电容值不断发生变化，芯片(3)根据获取电容值的变化，向外部读写器发送不同数据，护理人员即可获知使用者已经排泄和排泄量的大小。

Description

一种检测液体饱和度的电子标签 技术领域
本发明涉及RFID电子标签技术领域，尤其是一种检测液体饱和度的电子标签。
 背景技术
纸尿裤是一次性使用的纸类尿失禁用品，主要适用于婴幼儿及无法生活自理的病人或失能及半失能老人的日常护理。目前，市场上所销售的纸尿裤虽然可以吸干尿液，但其大小便的细菌大量存在，在婴幼儿及无法生活自理的人群大小便后，不能及时提醒护理人员对纸尿裤进行及时更换，如长时间穿戴、浸湿，经常造成使用者的各种皮肤问题，如红肿、湿疹、褥疮等。
在市场上出售的婴儿纸尿裤产品，部份具有变色条提示，但是均需要用户去观察纸尿裤才能发现，此种被动提示方式无法根本解决更换不及时问题；部份纸尿裤采用有源装置进行主动提示，但由于有源设备体积较大、相对易耗品造价昂贵、安装麻烦、拆除时不卫生、重复使用价值不大；部份纸尿裤采用有线连接湿度传感器，生产工序繁杂，生产成本升高，有线连接穿戴不方便，尿液流向不可控和传感器面积太小，导致这种检测不准确，无法确切的了解到纸尿裤具体使用状况。
 技术问题
本发明的目的是为了解决现有技术中存在的缺点，而提出的一种检测液体饱和度的电子标签。
 技术解决方案
本发明的技术方案如下：
一种检测液体饱和度的电子标签，包括基板，所述基板上蚀刻有标签天线、芯片、连接线及电容传感器，所述标签天线与所述芯片的正极信号端和负极信号端连接，所述芯片的正极数据采集端和负极数据采集端分别通过所述连接线连接所述电容传感器的正极部及负极部。
作为优选，所述标签天线包括闭合线圈，所述闭合线圈的端点处分别连接所述芯片的正极信号端和负极信号端，所述闭合线圈连接有对称设置的折叠线圈。
作为优选，所述闭合线圈呈圆形、椭圆形、三角形、矩形中的一种。
作为优选，所述折叠线圈包括与所述闭合线圈连接的L形弯折段，所述L形弯折段依次连接有第一U形段和第二U形段，所述第二U形段连接有拓展段。
作为优选，所述电容传感器的正极部包括垂直的正极连接板，所述正极连接板的一侧形成有多个水平的正极板，多个水平的所述正极板另一端呈自由状，相邻的所述正极板之间形成间隙。
作为优选，所述电容传感器的负极部包括垂直的负极连接板，所述负极连接板的一侧形成有多个水平的负极板，多个水平的所述负极板另一端呈自由状，所述负极板设置在所述正极板之间的间隙内。
作为优选，所述负极板的宽度小于所述正极板之间的间隙的宽度，得以使各所述正极板与各所述负极板不接触，相互分离。
作为优选，所述基板为FPC基板。
作为优选，所述标签天线、连接线及电容传感器为蚀刻铜线、铜片、蚀刻铝线或银浆印刷线中的一种。
作为优选，所述芯片采用同时符合高频13.56MHZ的协议和超高频860～960MHZ的协议的芯片。
 有益效果
本发明提供的一种检测液体饱和度的电子标签，其有益效果在于：在使用时，标签天线贴在尿布湿的外表面（朝空气的一面），使标签天线部分贴于尽量干燥部位，并且标签天线周围没有金属物件，电容传感器部分尽量贴于最湿的部位，当尿布湿是干燥时，测量电容做为基准，当发生大小便后，尿液流入电容传感器内，由于尿液为导电材料，随着尿液量的增加，电容传感器的电容值不断发生变化，芯片根据获取电容值的变化，向外部读写器发送不同数据，护理人员即可获知使用者已经排泄和排泄量的大小。
 附图说明
图1是本发明检测液体饱和度的电子标签的结构示意图；
图2是本发明检测液体饱和度的电子标签的原理框图；
图3是标签天线的结构示意图；
图4是电容传感器的结构示意图。
 本发明的最佳实施方式
为进一步说明各实施例，本发明提供有附图。这些附图为本发明揭露内容的一部分，其主要用以说明实施例，并可配合说明书的相关描述来解释实施例的运作原理。配合参考这些内容，本领域普通技术人员应能理解其他可能的实施方式以及本发明的优点。图中的组件并未按比例绘制，而类似的组件符号通常用来表示类似的组件。
现结合附图和具体实施方式对本发明进一步说明。
如图1-2所示，本实施例提供一种检测液体饱和度的电子标签，包括FPC基板1，基板1上蚀刻有标签天线2、芯片3、连接线4及电容传感器5，标签天线2与芯片3的正极信号端和负极信号端连接，芯片3的正极数据采集端和负极数据采集端分别通过连接线4连接电容传感器5的正极部51及负极部52。
如图3所示，标签天线2包括闭合线圈21，闭合线圈21的端点处分别连接芯片3的正极信号端和负极信号端，闭合线圈21连接有对称设置的折叠线圈22。本实施例中，闭合线圈22采用矩形，但亦可采用呈圆形、椭圆形、三角形等，不以此为限。其中，两个对称的折叠线圈22形状相同，包括与闭合线圈21连接的L形弯折段221，L形弯折段221依次连接有第一U形段222和第二U形段223，第二U形段223连接有拓展段224，拓展段224可增加折叠线圈的面积。
如图4所示，电容传感器5的正极部51与负极部52采用相互穿插的结构，其中，正极部51包括垂直的正极连接板511，正极连接板511的一侧形成有多个水平的正极板512，多个水平的正极板512另一端呈自由状，相邻的正极板512之间形成间隙。负极部52包括垂直的负极连接板521，负极连接板521的一侧形成有多个水平的负极板522，多个水平的负极板522另一端呈自由状，负极板522设置在正极板512之间的间隙内，并且负极板522的宽度小于正极板512之间的间隙的宽度，得以使各正极板512与各负极板522不接触，相互分离。
本实施例中，连接线4的长度设置为240mm，电容传感器5部分为40mmX20mm，按照人类一般一次尿液量>100mL，仿真计算的结果如表1所示，完全满足芯片电容灵敏度和量程要求。
表 1 电容传感器检测性能
序号 参数 空载 加载尿液(6.7mL) 变化
1 电容（pF） 6.89 7.78 0.89（6 LBS）
本实施例中，标签天线2、连接线4及电容传感器5均为铜线蚀刻在FPC基板1上，由于铜相对于常见的铝材料而言，铜的介电常数相对于温度的变化更加稳定，因此，采用铜作为材料，制作的标签天线的工作频率更加稳定，尺寸更小。芯片3采用同时符合高频13.56MHZ的协议和超高频860～960MHZ的协议的EM4152芯片。
本实施例提供的一种检测液体饱和度的电子标签，当应用在监控尿布湿状态时，在尿布湿上粘贴电容传感器，同时通过超高频电子标签（UHF RFID）传递信息。在使用时，标签天线贴在尿布湿的外表面（朝空气的一面），使标签天线部分贴于尽量干燥部位，并且标签天线周围没有金属物件，电容传感器部分尽量贴于最湿的部位。标签天线进入解读器发出的磁场后，接收解读器发出的射频信号，凭借感应电流所获得的能量发送出存储在芯片中的电容传感器反馈的电容值信息，解读器读取信息并解码后，送至系统的信息处理中心进行有关数据处理。即当尿布湿是干燥时，电容传感器5测量电容做为基准，当发生大小便后，尿液流入电容传感器5内，由于尿液为导电材料，随着尿液量的增加，电容传感器5的电容值增加，芯片3获取电容值后由标签天线2传输给外部的解读器。
为了使护理人员可获知标签天线2传输的信息，要求在室外发射天线根据通信距离架设一定的高度，并把天线朝地面倾斜一定角度，类似基站天线架设。为了进一步提高距离，发射天线可以设计成在水平面方向电扫描，垂直方向固定波束宽，这样发射增益可以提高到12dBi-15dBi，水平波束宽20-30度。或者发射天线是智能天线。如果在室内发射天线可以安装在天花板上，根据房间面积均匀布置多个发射天线，因为接收天线朝上方向增益较大。因为人体在移动，所以有可能正好处于标签天线凹点，导致这一方向信号弱。还有就是人体的遮挡，会导致遮挡的这一方向信号弱。地面、墙壁、天花板等的反射也会导致某方向信号弱。所以发射天线布局在场地不同方向，至少要有两发射天线，才能保证可靠的通信。
尽管结合优选实施方案具体展示和介绍了本发明，但所属领域的技术人员应该明白，在不脱离所附权利要求书所限定的本发明的精神和范围内，在形式上和细节上可以对本发明做出各种变化，均为本发明的保护范围。

Claims (10)

  1.  一种检测液体饱和度的电子标签，其特征在于，包括基板，所述基板上蚀刻有标签天线、芯片、连接线及电容传感器，所述标签天线与所述芯片的正极信号端和负极信号端连接，所述芯片的正极数据采集端和负极数据采集端分别通过所述连接线连接所述电容传感器的正极部及负极部。
  2.  根据权利要求1所述的一种检测液体饱和度的电子标签，其特征在于，所述标签天线包括闭合线圈，所述闭合线圈的端点处分别连接所述芯片的正极信号端和负极信号端，所述闭合线圈连接有对称设置的折叠线圈。
  3.  根据权利要求2所述的一种检测液体饱和度的电子标签，其特征在于，所述闭合线圈呈圆形、椭圆形、三角形、矩形中的一种。
  4.  根据权利要求2所述的一种检测液体饱和度的电子标签，其特征在于，所述折叠线圈包括与所述闭合线圈连接的L形弯折段，所述L形弯折段依次连接有第一U形段和第二U形段，所述第二U形段连接有拓展段。
  5.  根据权利要求1所述的一种检测液体饱和度的电子标签，其特征在于，所述电容传感器的正极部包括垂直的正极连接板，所述正极连接板的一侧形成有多个水平的正极板，多个水平的所述正极板另一端呈自由状，相邻的所述正极板之间形成间隙。
  6.  根据权利要求5所述的一种检测液体饱和度的电子标签，其特征在于，所述电容传感器的负极部包括垂直的负极连接板，所述负极连接板的一侧形成有多个水平的负极板，多个水平的所述负极板另一端呈自由状，所述负极板设置在所述正极板之间的间隙内。
  7.  根据权利要求6所述的一种检测液体饱和度的电子标签，其特征在于，所述负极板的宽度小于所述正极板之间的间隙的宽度，得以使各所述正极板与各所述负极板不接触，相互分离。
  8.  根据权利要求1-7任一所述的一种检测液体饱和度的电子标签，其特征在于， 所述基板为FPC基板。
  9.  根据权利要求1-7任一所述的一种检测液体饱和度的电子标签，其特征在于，所述标签天线、连接线及电容传感器为蚀刻铜线、铜片、蚀刻铝线或银浆印刷线中的一种。
  10.  根据权利要求1-7任一所述的一种检测液体饱和度的电子标签，其特征在于，所述芯片采用同时符合高频13.56MHZ的协议和超高频860～960MHZ的协议的芯片。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105678372A (zh) * 2015-12-31 2016-06-15 上海仪电智能电子有限公司 一种结合湿度传感部件的电子标签天线
JP2019017546A (ja) * 2017-07-13 2019-02-07 中平 ▲頼▼ 無線検知式おむつ及びそのモニタリング設備
CN111382829A (zh) * 2018-12-27 2020-07-07 拉碧斯半导体株式会社 Ic标签及ic标签的制造方法
CN115358363A (zh) * 2022-08-05 2022-11-18 北京凡享健康科技有限公司 一种检测液体饱和度的电子标签

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105678372A (zh) * 2015-12-31 2016-06-15 上海仪电智能电子有限公司 一种结合湿度传感部件的电子标签天线
JP2019017546A (ja) * 2017-07-13 2019-02-07 中平 ▲頼▼ 無線検知式おむつ及びそのモニタリング設備
CN111382829A (zh) * 2018-12-27 2020-07-07 拉碧斯半导体株式会社 Ic标签及ic标签的制造方法
CN115358363A (zh) * 2022-08-05 2022-11-18 北京凡享健康科技有限公司 一种检测液体饱和度的电子标签

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