WO2021109985A1 - 一种车牌电子标签 - Google Patents
一种车牌电子标签 Download PDFInfo
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- WO2021109985A1 WO2021109985A1 PCT/CN2020/133086 CN2020133086W WO2021109985A1 WO 2021109985 A1 WO2021109985 A1 WO 2021109985A1 CN 2020133086 W CN2020133086 W CN 2020133086W WO 2021109985 A1 WO2021109985 A1 WO 2021109985A1
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- WIPO (PCT)
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- license plate
- electronic tag
- dielectric layer
- layer
- plate electronic
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
Definitions
- the invention relates to the technical field of electronic tags, in particular to a license plate electronic tag.
- the embodiment of the present invention provides a license plate electronic tag, which can realize the long-distance reading of RFID by using the large-area metal of the electronic license plate, and at the same time, the chip is damaged when the RFID on the license plate is removed, which can effectively prevent label transfer.
- an embodiment of the present invention provides a license plate electronic label, which may include: a metal layer and a dielectric layer, and further includes a chip disposed on the metal layer; the metal layer includes at least a top layer of the license plate electronic label The dipole antenna, the conductive metal strip line in the middle layer, and the metal bottom plate at the bottom; the dielectric layer includes at least a first dielectric layer and a second dielectric layer;
- the upper surface of the metal bottom plate is adjacent to the lower surface of the first dielectric layer, and the upper surface of the first dielectric layer is adjacent to the lower surface of the conductive metal strip line.
- the upper surface is adjacent to the lower surface of the second dielectric layer, and the upper surface of the second dielectric layer is adjacent to the lower surface of the dipole antenna;
- the metal layer provided with the chip is covered with VHB glue.
- a stepped groove surface is formed between the second dielectric layer and the first dielectric layer.
- the conductive metal strip line includes a coupling antenna located on the groove surface and a microstrip line buried between the first dielectric layer and the second dielectric layer.
- the chip is located on the coupling antenna on the groove surface.
- a through hole is provided on the dielectric layer, and the dipole antenna and the microstrip line are connected together through the through hole.
- the dipole antenna and the coupling antenna on the groove surface are exposed on the outer surface of the license plate electronic tag.
- the dipole antenna and the coupling antenna on the groove surface are covered with a layer of spray paint, and the chip on the coupling antenna is not painted.
- the groove surface is covered with a layer of VHB glue.
- an anti-tamper cut is opened on the groove surface at the junction of the two steps, and the lower surface of the license plate electronic tag is covered with VHB glue.
- the lower surface of the license plate electronic label is equipped with foam glue.
- the anti-dismantling slit is a V-shaped slit, the V-shaped slit is located on the dielectric layer, and the V-shaped slit does not cut the conductive metal strip line.
- the shape and size of the through hole are matched with the width of the microstrip line or the dipole antenna.
- the conduction of the microstrip line or the dipole antenna is achieved by completely conducting the dielectric layer.
- an embodiment of the present invention provides a vehicle management device, the device includes a metal license plate and any one of the license plate electronic tags in the first aspect:
- the license plate electronic tag is connected to the back of the metal license plate through glue on the groove surface.
- an embodiment of the present invention provides a vehicle management method that applies the vehicle management device in the second aspect above to manage vehicles, and the method includes:
- the license plate electronic tag sends electromagnetic waves to the electronic tag reader through the metal license plate as an antenna, and transmits the vehicle information corresponding to the license plate electronic tag to the electronic tag reader to pass Obtained by the electronic tag reader
- the effective distance range is not less than 15m (using a certain NXP chip).
- the beneficial effects of this application are: by modifying the license plate, design a brand new electronic tag attached to the license plate, and use the metal part of the license plate to couple the license plate into a part of the antenna as GND, realizing the long-distance RFID Reading increases the convenience of vehicle management. After installing this type of RFID tag on the license plate, it cannot be removed, and the chip will be damaged as soon as it is removed, effectively preventing illegal activities such as block number and decking.
- FIG. 1 is a schematic diagram of the installation effect of a license plate electronic tag on a license plate provided by an embodiment of the present invention
- FIGS. 2 to 4 are schematic diagrams of the structure of a license plate electronic tag provided by an embodiment of the invention.
- Figure 5 is a side view of a license plate electronic tag provided by an embodiment of the present invention.
- Fig. 6 is a side view of another electronic license plate tag provided by an embodiment of the present invention.
- metal layer 1 element antenna 11; conductive metal strip line 12; coupling antenna 121; microstrip line 122; metal bottom plate 13; dielectric layer 2; first dielectric layer 21; second dielectric layer 22; via 23; Chip 3; Groove surface 4; Anti-tamper cut 41; VHB glue 5; Foam glue 6.
- installation should be understood in a broad sense.
- it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediary, or between two devices, elements or components. Connectivity within the room.
- the specific meanings of the above-mentioned terms in the present utility model can be understood according to specific circumstances.
- the license plate electronic tag shown in Figures 1 to 6 may include a metal layer 1 and a dielectric layer 2, and also include a chip 3 arranged on the metal layer; the metal layer 1 at least includes a vibrator antenna 11 located on the top layer of the license plate electronic tag, and the middle The conductive metal strip line 12 of the layer and the metal bottom plate 13 at the bottom layer; the dielectric layer 2 includes at least a first dielectric layer 21 and a second dielectric layer 22.
- the upper surface of the metal bottom plate 13 is adjacent to the lower surface of the first dielectric layer 21, the upper surface of the first dielectric layer 21 is adjacent to the lower surface of the conductive metal strip line 12, and the upper surface of the conductive metal strip line 12 is adjacent to the second
- the lower surface of the dielectric layer 22 is adjacent, and the upper surface of the second dielectric layer 22 is adjacent to the lower surface of the dipole antenna 11; there is a connection relationship between the dipole antenna 11 and the conductive metal strip line 12.
- the metal part of the license plate is fully utilized, and the license plate is coupled as a part of the antenna, which is regarded as GND.
- the width of the conductive metal strip line can be adjusted, and the adjustment of the width of the conductive metal strip line can change the input impedance of the antenna, thereby adjusting the bandwidth and frequency of the license plate electronic tag.
- a stepped groove surface 4 is formed between the second dielectric layer 22 and the first dielectric layer 21.
- the license plate electronic label can be pasted on the license plate through the groove surface 4 on.
- the groove surface 4 is covered with a layer of VHB glue, which can also be other glues with strong adhesion.
- the conductive metal strip line 12 includes a coupling antenna 121 located on the slot surface 4 and a microstrip line 122 buried between the first dielectric layer 21 and the second dielectric layer 22. Furthermore, the chip 3 is located on the coupling antenna 121. It is understandable that since the VHB glue 5 on the groove surface 4 has greater adhesion, after the label is stuck on the license plate, and then removed, it is very likely that the chip 3 on the groove surface 4 will be torn off together. As a result, the label was damaged as soon as it was removed.
- the dipole antenna 11 and the coupling antenna 121 on the slot surface 4 are exposed on the surface of the license plate label.
- a protective paint can be painted on the surface of the dipole antenna 11 and the coupling antenna 121.
- the surface of the chip 3 provided on the coupling antenna 121 does not need to be painted.
- the dipole antenna 11 and the microstrip line 122 buried in the dielectric layer 2 have a connection relationship, and the connection relationship between the two can be realized through the through hole 23 provided on the dielectric layer 2.
- the size of the through hole 23 may be determined according to the width of the microstrip line 122 or the dipole antenna 11, or the width of the two may be ignored, and the dielectric layer 2 may be completely turned on.
- the lower surface of the label that is, the metal bottom plate 13 may be installed with foam glue 6, and the label may be fixed on the rear plate of the vehicle license plate.
- a tamper-resistant cut 41 can be opened on the groove surface 4.
- the tamper-resistant cut 41 will be removed. It is disconnected, thereby damaging the label.
- the anti-dismantling cut 41 may be a V-shaped cut groove. It can be understood that the opened V-shaped slot is located on the dielectric layer 2 and will not affect the metal layer 1 (that is, it will not cut the metal layer). In specific implementation, the opened V-shaped slot is located on the groove surface 4 at the junction of the two steps. It should be noted that when a tamper-proof cut 41 is opened on the label, the lower surface of the label, that is, the metal bottom plate 13 should be covered with VHB glue 5.
- a brand new electronic tag attached to the license plate is designed by modifying the license plate.
- the metal part of the license plate is used to couple the license plate as a part of the antenna as GND, which realizes the long-distance reading of RFID. This increases the convenience of vehicle management. After installing this type of RFID tag on the license plate, it cannot be removed, and the chip will be damaged as soon as it is removed, effectively preventing illegal activities such as blocking the number of the license plate and decking.
- the embodiment of the present application also provides a vehicle management device.
- the device includes a metal license plate and the license plate electronic tag described in FIGS. 1 to 6 above. As shown in FIG. 1, the license plate electronic tag passes through the groove surface and connects with the metal license plate. The back side is connected, specifically by the glue on the groove surface.
- the vehicle management device can send electromagnetic waves to the electronic tag reader through the metal license plate as an antenna, and transmit the vehicle information corresponding to the license plate electronic tag to the electronic tag reader to obtain the vehicle through the electronic tag reader. Information and management of vehicles.
- the embodiment of the present application also provides a vehicle management method, which uses the vehicle management device in the above embodiment to manage vehicles.
- the method includes: within an effective distance, the license plate electronic tag passes through the metal
- the license plate acts as an antenna to send electromagnetic waves to the electronic tag reader and writer, and transmits the vehicle information corresponding to the license plate electronic tag to the electronic tag reader, so as to obtain the vehicle information through the electronic tag reader and To manage.
- the effective distance range is 15m. Compared with the existing RFID tags, it realizes long-distance reading. The specific effective distance can be obtained by testing the NXP UCode8 chip.
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Abstract
本申请公开一种车牌电子标签,包括以下步骤:金属层和介质层,还包括设置在金属层上的芯片;金属层至少包括位于车牌电子标签顶层的振子天线、中间层的导通金属带线和位于底层的金属底板;介质层至少包括第一介质层和第二介质层;金属底板的上表面与第一介质层的下表面相邻,第一介质层上表面与导通金属带线的下表面相邻,导通金属带线的上表面与第二介质层的下表面相邻,第二介质层的上表面与振子天线的下表面相邻;振子天线和导通金属带线之间具有连接关系;设置芯片的金属层覆盖有VHB胶。采用本申请,通过利用电子车牌的大面积金属可以实现RFID的远距离读取,同时车牌上的RFID一拆即损坏芯片,可以有效防止标签转移。
Description
相关申请的交叉引用
本申请要求于2019年12月4日提交中国专利局,申请号为2019112290510,发
明名称为“一种车牌电子标签”的中国专利申请的优先权,其全部内容通过引
用结合在本申请中。
本发明涉及电子标签技术领域,尤其涉及一种车牌电子标签。
在RFID的使用中,针对汽车的管理有很多种方案,例如,目前多数方案都是将RFID标签黏贴在前挡风玻璃上的。但通常,大家喜欢给车贴上各种膜,有的车膜含有金属成分,而车主并不知道,这种情况下标签贴上去之后,电磁波被屏蔽,无法传回读写器,甚至连ETC等设备也无法工作。同时,随着玻璃制造技术的进步,有很多豪车的前挡风玻璃含有加热丝,而加热丝的存在,又抑制了RFID标签的性能,导致RFID标签读距性能很差。
发明内容
本发明实施例提供一种车牌电子标签,通过利用电子车牌的大面积金属可以实现RFID的远距离读取,同时车牌上的RFID一拆即损坏芯片,可以有效防止标签转移。
第一方面,本发明实施例提供了一种车牌电子标签,可包括:金属层和介质层,还包括设置在所述金属层上的芯片;所述金属层至少包括位于所述车牌电子标签顶层的振子天线、中间层的导通金属带线和位于底层的金属底板;所述介质层至少包括第一介质层和第二介质层;
所述金属底板的上表面与所述第一介质层的下表面相邻,所述第一介质层 上表面与所述导通金属带线的下表面相邻,所述导通金属带线的上表面与所述第二介质层的下表面相邻,所述第二介质层的上表面与所述振子天线的下表面相邻;
所述振子天线和所述导通金属带线之间具有连接关系;
设置有所述芯片的金属层覆盖有VHB胶。
进一步的,所述第二介质层与所述第一介质层之间形成一个阶梯状的槽面。
进一步的,所述导通金属带线包括位于所述槽面上的耦合天线和埋于所述第一介质层和所述第二介质层之间的微带线。
进一步的,所述芯片位于所述槽面上的耦合天线上。
进一步的,所述介质层上设有通孔,所述振子天线和所述微带线通过所述通孔连接在一起。
进一步的,所述振子天线和所述槽面上的耦合天线裸露在所述车牌电子标签的外表面。
进一步的,所述振子天线和所述槽面上的耦合天线上覆盖有一层喷漆,所述耦合天线上的芯片上未喷漆。
进一步的,所述槽面上覆盖一层VHB胶。
进一步的,在两阶梯连接处的槽面上开有一防拆割口,所述车牌电子标签的下表面覆盖VHB胶。
进一步的,所述车牌电子标签的下表面装有泡棉胶。
进一步的,所述防拆割口为V型割槽,所述V型割槽位于介质层上,V型割槽不割断所述导通金属带线。
进一步的,所述通孔的形状和大小与微带线或振子天线的宽度相匹配。
进一步的,通过将介质层全部导通的方式实现所述微带线或振子天线的导通。
第二方面,本发明实施例提供了一种车辆管理装置,所述装置包括金属车牌以及上述第一方面中任一项车牌电子标签:
所述车牌电子标签通过槽面上的胶与所述金属车牌的背面相连。
第三方面,本发明实施例提供了一种车辆管理方法,所述方法应用上述第二方面中的车辆管理装置对车辆进行管理,所述方法包括:
在有效距离范围内,所述车牌电子标签通过所述金属车牌作为天线向电子标签读写器发送电磁波,并将所述车牌电子标签对应的车辆信息传送给所述电子标签读写器,以通过所述电子标签读写器获取
进一步的,所述有效距离范围不小于15m(采用NXP某款芯片)。
本申请的有益效果是:通过在车牌上做修改,设计一种全新的黏贴在车牌上的电子标签,利用车牌的金属部分将车牌耦合为天线的一部分视为GND,实现了RFID的远距离读取,增加了对车辆管理的便利性,车牌上安装此类RFID标签后便不能取下来,一拆即损坏芯片,有效的遏制了挡牌号、套牌等非法行为的发生。
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的车牌电子标签在车牌上的安装效果示意图;
图2-图4是本发明实施例提供的车牌电子标签的结构示意图;
图5是本发明实施例提供的车牌电子标签的侧视图;
图6是本发明实施例提供的另一种车牌电子标签的侧视图。
附图标记:金属层1;振子天线11;导通金属带线12;耦合天线121;微带线122;金属底板13;介质层2;第一介质层21;第二介质层22;通孔23;芯片3;槽面4;防拆割口41;VHB胶5;泡棉胶6。
为了使本技术领域的人员更好地理解本申请方案,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本申请保护的范围。
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本申请中,术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“中”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本实用新型及其实施例,并非用于限定所指示的装置、元件或组成部分必须具有特定方位,或以特定方位进行构造和操作。
并且,上述部分术语除了可以用于表示方位或位置关系以外,还可能用于表示其他含义,例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言,可以根据具体情况理解这些术语在本实用新型中的具体含义。
此外,术语“安装”、“设置”、“设有”、“连接”、“相连”、“套接”应做广义理解。例如,可以是固定连接,可拆卸连接,或整体式构造;可以是机械连接,或电连接;可以是直接相连,或者是通过中间媒介间接相连,又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言,可以根据具体情况理解上述术语在本实用新型中的具体含义。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
如图1-图6所示的车牌电子标签,可以包括金属层1和介质层2,还包括设置在金属层上的芯片3;金属层1至少包括位于车牌电子标签顶层的振子天线11、中间层的导通金属带线12和位于底层的金属底板13;介质层2至少包括第一介质层21和第二介质层22。
金属底板13的上表面与第一介质层21的下表面相邻,第一介质层21上表面与导通金属带线12的下表面相邻,导通金属带线12的上表面与第二介质层22的下表面相邻,第二介质层22的上表面与振子天线11的下表面相邻;振子天线11和导通金属带线12之间具有连接关系。
本申请中是充分利用车牌的金属部分,将车牌耦合为天线的一部分,视为GND。另外,导通金属带线的宽度可以调节,导通金属带线的宽度的调节可以改变天线的输入阻抗,从而调整车牌电子标签的频宽和频率。
在一种优选的实现方式中,第二介质层22与第一介质层21之间形成一个阶梯状的槽面4,如图1所示,通过槽面4可以将车牌电子标签黏贴在车牌上。可以理解的是,槽面4上覆盖一层VHB胶,也可以是其他具有较强粘合性的胶。
在一种优选的实现方式中,导通金属带线12包括位于槽面4上的耦合天线121和埋于第一介质层21和第二介质层22之间的微带线122。进一步的,芯片3位于耦合天线121上。可以理解的是,由于槽面4上的VHB胶5具有较大的粘合性,当标签粘在车牌上后,再拆下来,很可能将槽面4上的芯片3一起撕下来。从而一拆就损坏了标签。
可以理解的是,振子天线11和槽面4上的耦合天线121裸露在车牌标签的表面,为了防止其生锈或者被损坏,可以在振子天线11和耦合天线121的表面刷一层保护漆,但设置在耦合天线121上的芯片3的表面不需要刷漆。
具体实现中,振子天线11与埋在介质层2中的微带线122具有连接关系,二者的连接关系可以通过介质层2上设置的通孔23实现。可选的,通孔23的大小可以根据微带线122或振子天线11的宽度来定,也可以不考虑二者的宽度,将介质层2全部导通。
在一种可选的实现方式中,标签的下表面即金属底板13上可以安装泡棉胶6,可以将标签固定在汽车安装车牌的后板上。
需要说明的是,当标签安装在车牌后板上时,为实现车牌一拆即毁,可以在槽面4上开一防拆割口41,当标签被拆除时,会从防拆割口41处断开,从而损坏标签。优选的,该防拆割口41可以是V型割槽。可以理解的是,所开的V型割槽位于介质层2上,不会对金属层1产生影响(即不会割断金属层)。具体实现中,所开的V型割槽位于两阶梯连接处的槽面4上。需要说明的是,在标签上开有防拆割口41的时,标签的下表面即金属底板13上要覆盖VHB胶5。
本申请实施例中,通过在车牌上做修改,设计一种全新的黏贴在车牌上的电子标签,利用车牌的金属部分将车牌耦合为天线的一部分视为GND,实现了RFID的远距离读取,增加了对车辆管理的便利性,车牌上安装此类RFID标签 后便不能取下来,一拆即损坏芯片,有效的遏制了挡牌号、套牌等非法行为的发生。
本申请的实施例还提供了一种车辆管理装置,装置包括金属车牌以及上述图1至图6中所记载的车牌电子标签,如图1中所示,车牌电子标签通过槽面上与金属车牌的背面相连,具体的是通过槽面上的胶相连。该车辆管理装置可以通过车牌电子标签发送通过金属车牌作为天线向电子标签读写器发送电磁波,并将车牌电子标签对应的车辆信息传送给电子标签读写器,以通过电子标签读写器获取车辆信息并对车辆进行管理。
本申请的实施例,还提供了一种车辆管理方法,是应用上述实施例中的车辆管理装置对车辆进行管理,所述方法包括:在有效距离范围内,所述车牌电子标签通过所述金属车牌作为天线向电子标签读写器发送电磁波,并将所述车牌电子标签对应的车辆信息传送给所述电子标签读写器,以通过所述电子标签读写器获取所述车辆信息并对车辆进行管理。所述有效距离范围为15m。相比于现有的RFID标签实现了远距离读取。具体的该有效距离可以通过NXP UCode8芯片测试得到。
以上仅是本发明的优选实施方式,并非对本发明作任何形式上的限制。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合。为了避免不必要的重复,本发明实施例对各种可能的组合方式不再另行说明。
此外,本发明实施例的各种不同的实施方式之间也可以进行任意组合,只要其不违背本发明实施例的思想,其同样应当视为本发明实施例所公开的内容。
Claims (16)
- 一种车牌电子标签,其特征在于,包括:金属层和介质层,还包括设置在所述金属层上的芯片;所述金属层至少包括位于所述车牌电子标签顶层的振子天线、中间层的导通金属带线和位于底层的金属底板;所述介质层至少包括第一介质层和第二介质层;所述金属底板的上表面与所述第一介质层的下表面相邻,所述第一介质层上表面与所述导通金属带线的下表面相邻,所述导通金属带线的上表面与所述第二介质层的下表面相邻,所述第二介质层的上表面与所述振子天线的下表面相邻;所述振子天线和所述导通金属带线之间具有连接关系;设置有所述芯片的金属层覆盖有VHB胶。
- 根据权利要求1所述的车牌电子标签,其特征在于,所述第二介质层与所述第一介质层之间形成一个阶梯状的槽面。
- 根据权利要求2所述的车牌电子标签,其特征在于,所述导通金属带线包括位于所述槽面上的耦合天线和埋于所述第一介质层和所述第二介质层之间的微带线。
- 根据权利要求3所述的车牌电子标签,其特征在于,所述芯片位于所述槽面上的耦合天线上。
- 根据权利要求3所述的车牌电子标签,其特征在于,所述介质层上设有通孔,所述振子天线和所述微带线通过所述通孔连接在一起。
- 根据权利要求3所述的车牌电子标签,其特征在于,所述振子天线和所述槽面上的耦合天线裸露在所述车牌电子标签的外表面。
- 根据权利要求3所述的车牌电子标签,其特征在于,所述振子天线和所述槽面上的耦合天线上覆盖有一层喷漆,所述耦合天线上的芯片上未喷漆。
- 根据权利要求2所述的车牌电子标签,其特征在于,所述槽面上覆盖一层VHB胶。
- 根据权利要求2所述的车牌电子标签,其特征在于,在两阶梯连接处的槽面上开有一防拆割口,所述车牌电子标签的下表面覆盖VHB胶。
- 根据权利要求1所述的车牌电子标签,其特征在于,所述车牌电子标签的下表面装有泡棉胶。
- 根据权利要求9所述的车牌电子标签,其特征在于,所述防拆割口为V型割槽,所述V型割槽位于介质层上,V型割槽不割断所述导通金属带线。
- 根据权利要求5所述的车牌电子标签,其特征在于,所述通孔的形状和大小与微带线或振子天线的宽度相匹配。
- 根据权利要求5所述的车牌电子标签,其特征在于,通过将介质层全部导通的方式实现所述微带线或振子天线的导通。
- 一种车辆管理装置,其特征在于,所述装置包括金属车牌以及上述权利要求2至13中任一项车牌电子标签:所述车牌电子标签通过槽面上的胶与所述金属车牌的背面相连。
- 一种车辆管理方法,其特征在于,应用上述权利要求14中的车辆管理装置对车辆进行管理,所述方法包括:在有效距离范围内,所述车牌电子标签通过所述金属车牌作为天线向电子标签读写器发送电磁波,并将所述车牌电子标签对应的车辆信息传送给所述电子标签读写器,以通过所述电子标签读写器获取所述车辆信息并对车辆进行管理。
- 根据权利要求15所述的车辆管理方法,其特征在于,所述有效距离范围为15m。
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