Omnidirectional signal adjustable enhanced electronic tag

Abstract

The utility model discloses an omnidirectional signal adjustable enhanced electronic tag, which comprises an electronic tag shell and a PCB (printed circuit board), the PCB is positioned in the electronic tag shell, a double-sided microstrip antenna assembly and a radio frequency key are arranged on the PCB, the double-sided microstrip antenna assembly corresponds to an antenna director assembly on the inner side of the electronic tag shell, the radio frequency key is mounted on the PCB, and the antenna director assembly corresponds to the antenna director assembly on the inner side of the electronic tag shell. And the radio frequency key is connected with the MCU main control chip through the PCB wiring. According to the omni-directional signal adjustable enhanced electronic tag provided by the utility model, the receiving range and the communication quality of OBU signals are improved through the design of the double-sided antenna, more installation freedom is given to users, and the performance of the electronic tag is prevented from being influenced by different installation positions. Due to the design of the radio frequency keys capable of operating radio frequency parameters, the controllability and the reliability of the electronic tag are improved. The adaptability and practicability of the product are enhanced, and more convenient and comfortable use experience is provided for terminal users.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic tag technical field, concretely relates to a kind of omnidirectional signal adjustable enhanced electronic tag. BACKGROUND

[0002] As an important tool for vehicle identification and wireless communication, electronic tags play a crucial role in intelligent transportation systems. By storing vehicle information and transaction information in the on-board tag, tolls can be collected. To ensure that the electronic tag can be woken up by the roadside reading device (RSU, Road Side Unit) in time and communicate normally, most existing electronic tag designs follow the principle of being pasted on the front windshield of the vehicle.

[0003] Moreover, the existing electronic tags usually do not have a key to adjust the radio frequency parameter function, which means that users cannot directly adjust the settings of the tag, such as wake-up sensitivity. Although this design simplifies the manufacturing and use of the tag, it also limits the user's ability to flexibly configure according to actual needs and environmental changes.

[0004] Firstly, the installation position of the electronic tag is limited (recommended to be installed above the front windshield), although the electronic tag is usually designed to be small, but for some users it is not beautiful and will interfere with the driving view, which affects its communication effect and coverage range to some extent.

[0005] Secondly, the electronic tag does not have a key to adjust the radio frequency parameter function, and users cannot adjust it according to different use scenarios.

[0006] Therefore, it is necessary to design a new omnidirectional signal adjustable enhanced electronic tag to solve the above problems. UTILITY MODEL CONTENT

[0007] The utility model discloses a kind of omnidirectional signal adjustable enhanced electronic tags to solve at least one technical problem existing in the above prior art.

[0008] To achieve the above purpose, the utility model adopts the following technical scheme:

[0009] An omnidirectional signal adjustable enhanced electronic tag, comprising an electronic tag shell and a PCB board, the PCB board is located in the electronic tag shell, a double-sided panel carrier microstrip antenna assembly and a radio frequency key are provided on the PCB board, the double-sided microstrip antenna assembly corresponds with the antenna director assembly on the inner side of the electronic tag shell, the radio frequency key is installed on the PCB board, and the radio frequency key is connected with the MCU master control chip through PCB wiring.

[0010] Preferably, the electronic tag shell comprises a first shell and a second shell opposite to the first shell, the first shell and the second shell are connected in a clamping manner, and the first shell and the second shell are hollow inside to form a containing cavity, and the PCB is arranged in the containing cavity.

[0011] Preferably, the double-sided panel-mounted microstrip antenna assembly comprises a first panel-mounted microstrip antenna and a second panel-mounted microstrip antenna opposite to the first panel-mounted microstrip antenna.

[0012] Preferably, the antenna director assembly comprises a first antenna director and a second antenna director, the first antenna director is arranged at the lower part of the inner side of the first shell and is located directly above the first panel-mounted microstrip antenna, the second antenna director is arranged at the lower part of the inner side of the second shell and is located directly above the second panel-mounted microstrip antenna, and the first antenna director and the second antenna director are arranged correspondingly with the first panel-mounted microstrip antenna and the second panel-mounted microstrip antenna respectively.

[0013] Preferably, the operable functions of the radio frequency button include a normal mode, a low sensitivity mode and a high sensitivity mode, and the functions of the normal mode, the low sensitivity mode and the high sensitivity mode are controlled by the radio frequency button, and different modes are switched by manually pressing the radio frequency button.

[0014] Preferably, one end of the PCB is provided with an anti-disassembly switch, and when the electronic tag is activated, the anti-disassembly switch and the encryption chip form a logical association. When the electronic tag is separated from the vehicle body (i.e. disassembly occurs), the state of the anti-disassembly switch changes, and the change is transmitted to the MCU main control chip through the PCB wiring. After the MCU main control chip detects the change, the encryption chip is operated to change the disassembly flag state in the encryption chip to indicate that a disassembly event has occurred.

[0015] Preferably, the first panel-mounted microstrip antenna, the second panel-mounted microstrip antenna, the first antenna director and the second antenna director are similar in size and shape.

[0016] Compared with the prior art, the omnidirectional signal adjustable enhanced electronic tag has the following beneficial effects:

[0017] 1. The double-sided panel-mounted microstrip antenna assembly is arranged on the PCB, the double-sided panel-mounted microstrip antenna assembly has double-sided communication capability, whether the microwave signal is transmitted from the front or the back, the antenna director assembly can effectively amplify the received signal, and then the directly opposite panel-mounted microstrip antenna completes complete capture of the signal, thereby realizing effective enhancement of the signal, and the installation position of the electronic tag is no longer limited to the front windshield installation, and the communication signal is stable and reliable.

[0018] 2. By setting the radio frequency button, the controllability and reliability of the electronic tag are increased, users can adjust the sensitivity in different use scenarios, reduce unnecessary energy consumption by reducing sensitivity to reduce false wake-up, and increase response distance by increasing wake-up sensitivity to increase response distance and improve traffic efficiency.

[0019] 3. By setting the anti-disassembly switch, when the electronic tag is activated, a logical association is formed between the anti-disassembly switch and the encryption chip. When the electronic tag is separated from the vehicle body (i.e. disassembly occurs), the state of the anti-disassembly switch will change and be transmitted to the MCU master chip through the PCB wiring. After the MCU master chip detects the change, it will operate the encryption chip to change the disassembly flag state in the encryption chip to indicate that a disassembly event has occurred. Such a design can effectively prevent unauthorized disassembly and protect data security.

[0020] 4. The utility model enhances the adaptability and practicality of the product, and also provides the terminal user with more convenient and comfortable use experience. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a back structure schematic view of the omnidirectional signal adjustable enhanced electronic tag of the utility model;

[0022] Fig. 2 It is a front structure schematic view of the omnidirectional signal adjustable enhanced electronic tag of the utility model;

[0023] In the figure: 1, electronic tag shell;11, first shell;12, second shell;13, containing cavity;2, PCB;3, radio frequency button;4, double-sided panel-mounted microstrip antenna assembly;41, first panel-mounted microstrip antenna;42, second panel-mounted microstrip antenna;7, antenna director assembly;71, first antenna director;72, second antenna director;8, anti-disassembly switch. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] In the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0026] Please refer to the attached Figs. 1-2 As shown in the figure, the embodiment provides an omnidirectional signal adjustable enhanced electronic tag, which comprises an electronic tag shell 1 and a PCB board 2, the PCB board 2 is located in the electronic tag shell 1, a double-sided panel-mounted microstrip antenna assembly 4 and a radio frequency button 3 are arranged on the PCB board 2, the double-sided panel-mounted microstrip antenna assembly 4 corresponds to an antenna director assembly 7 on the inner side of the electronic tag shell 1, the radio frequency button 3 is installed on the PCB board 2, and the radio frequency button 3 is connected with an MCU master control chip through PCB wiring.

[0027] In the embodiment, the double-sided panel-mounted microstrip antenna assembly 4 is arranged on the PCB board 2, the double-sided panel-mounted microstrip antenna assembly 4 has double-sided communication capability, no matter whether a microwave signal is transmitted from the front or the back, the antenna director assembly 7 can effectively amplify the received signal, and then the signal is completely captured by the opposite panel-mounted microstrip antenna, so that the signal is effectively enhanced, the installation position of the electronic tag is no longer limited to the front windshield installation, and the communication signal is stable and reliable. By arranging the radio frequency button 3, the controllability and reliability of the electronic tag are improved, users can adjust the sensitivity in different use scenarios, reduce unnecessary energy consumption by reducing the sensitivity, increase the response distance by improving the sensitivity, and improve the passing efficiency. The utility model enhances the adaptability and practicability of the product, and also provides a more convenient and comfortable use experience for the end user.

[0028] In one specific embodiment, as Figs. 1-2 shown, the electronic tag shell 1 comprises a first shell 11 and a second shell 12 opposite to the first shell 11, the first shell 11 and the second shell 12 are clamped and connected, the first shell 11 and the second shell 12 are hollow inside to form a containing cavity 13, and the PCB board 2 is arranged in the containing cavity 13.

[0029] In the embodiment, the first shell 11 and the second shell 12 are clamped and hollow inside to form the containing cavity 13, and the inside of the containing cavity 13 is used for arranging the PCB board 2.

[0030] In one specific embodiment, as Figs. 1-2As shown in the figure, the double-sided panel-mounted microstrip antenna assembly 4 includes a first panel-mounted microstrip antenna 41 and a second panel-mounted microstrip antenna 42 opposite the first panel-mounted microstrip antenna 41; the antenna director assembly 7 includes a first antenna director 71 and a second antenna director 72, the first antenna director 71 is arranged at the lower part of the inner side of the first shell 11 at one end, and is located directly above the first panel-mounted microstrip antenna 41, the second antenna director 72 is arranged at the lower part of the inner side of the second shell 12 at one end, and is located directly above the second panel-mounted microstrip antenna 42, the first antenna director 71 and the second antenna director 72 are arranged correspondingly with the first panel-mounted microstrip antenna 41 and the second panel-mounted microstrip antenna 42 respectively; the first panel-mounted microstrip antenna 41, the second panel-mounted microstrip antenna 42, and the first antenna director 71 and the second antenna director 72 are similar in size and shape.

[0031] In this embodiment, the first panel-mounted microstrip antenna 41 and the second panel-mounted microstrip antenna 42 opposite the first panel-mounted microstrip antenna 41 are arranged, two panel-mounted microstrip antennas located on the front and back of the electronic tag are adopted, and the corresponding first antenna director 71 and second antenna director 72 are used as signal enhancers to realize omnidirectional signal receiving and transmitting function. When the electronic tag approaches the RSU road side unit, the microwave signal from the RSU is first captured by the antenna director and subjected to preliminary enhancement processing. The enhanced signal is then received by the panel-mounted microstrip antenna on the electronic tag and transmitted to the radio frequency chip through the feed point of the PCB 2 printed circuit board. The radio frequency chip is responsible for a series of complex data processing operations such as demodulation and decoding on the received microwave signal to extract useful information. After processing, the information is transmitted to the master chip, which is responsible for further information processing, decision making and interaction with external devices. It effectively solves the problem that the installation position of the electronic tag is limited and is recommended to be installed above the front windshield, giving users more installation freedom, avoiding the influence of different installation positions on its performance, and to some extent, solving the problems of poor communication effect and small coverage.

[0032] In a specific embodiment, as Figs. 1-2 shown, the operable functions of the radio frequency button 3 include a normal mode, a low sensitivity mode, a high sensitivity mode, and the functions of the normal mode, low sensitivity mode, and high sensitivity mode are all controlled by the radio frequency button 3. Different modes are switched by manually pressing the radio frequency button 3.

[0033] In this embodiment, the RF button 3 is a physical button for operating RF parameters. Users can select the corresponding mode by pressing the button to adjust the sensitivity parameters with one click. The electronic tag has three preset modes: Mode 1, normal mode, default mode; Mode 2, low sensitivity mode, recommended for use in environments with wireless electronic product interference (such as in-vehicle Wi-Fi); Mode 3, high sensitivity mode, recommended for use when the windshield is covered with a film containing metal ions, causing signal attenuation and a short toll station sensing distance. Users can flexibly adjust the communication between the electronic tag and the Road Side Unit (RSU) by selecting the mode. In densely populated urban areas, a short press of the RF button 3 selects the low sensitivity mode to reduce interference; when there are fewer vehicles or when rapid passage is required, a short press of the RF button 3 selects the high sensitivity mode to ensure vehicle passage efficiency. This design not only increases the controllability of the electronic tag but also significantly improves its reliability, providing strong support for the efficient operation of the electronic tag in various complex environments. This solves the problem of the lack of a button to adjust RF parameters, which prevents users from adjusting the settings according to different usage scenarios.

[0034] In a specific embodiment, such as Figs. 1-2 As shown, one end of the PCB board 2 is provided with an anti-tamper switch 8. The anti-tamper switch 8 is used to transmit a signal to the MCU main control chip when the electronic tag is detached from the vehicle body to indicate that a detachment event has occurred.

[0035] In this embodiment, an anti-tamper switch 8 is provided. When the electronic tag is activated, the anti-tamper switch 8 forms a logical association with the encryption chip. When the electronic tag detaches from the vehicle body (i.e., a disassembly occurs), the state of the anti-tamper switch 8 changes and is transmitted to the MCU main control chip via PCB traces. Upon detecting this change, the MCU main control chip operates the encryption chip, changing the state of the disassembly flag bit inside the encryption chip to indicate that a disassembly event has occurred. This design effectively prevents unauthorized disassembly and protects data security.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An omnidirectional signal adjustable enhanced electronic tag, comprising an electronic tag shell (1) and a PCB board (2), characterized in that: The PCB board (2) is located in the electronic tag shell (1), the PCB board (2) is provided with double-sided panel microstrip antenna assembly (4) and radio frequency button (3), the double-sided panel microstrip antenna assembly (4) corresponds with the antenna director assembly (7) on the inner side of the electronic tag shell (1), the radio frequency button (3) is installed on the PCB board (2), and the radio frequency button (3) is connected with the MCU master chip through the PCB wiring.

2. The omnidirectional signal adjustable enhanced electronic tag according to claim 1, characterized in that: The electronic tag shell (1) includes a first shell (11) and a second shell (12) opposite to the first shell (11), the first shell (11) and the second shell (12) are clamped and connected, the first shell (11) and the second shell (12) are hollow inside, forming a containing cavity (13), and the PCB board (2) is arranged in the containing cavity (13).

3. The omnidirectional signal adjustable enhanced electronic tag according to claim 2, characterized in that: The double-sided panel microstrip antenna assembly (4) includes a first panel microstrip antenna (41) and a second panel microstrip antenna (42) opposite to the first panel microstrip antenna (41).

4. The omnidirectional signal adjustable enhanced electronic tag according to claim 3, characterized in that: The antenna director assembly (7) includes a first antenna director (71) and a second antenna director (72), the first antenna director (71) is arranged at the lower part of the inner side of one end of the first shell (11) and is located directly above the first panel microstrip antenna (41), the second antenna director (72) is arranged at the lower part of the inner side of one end of the second shell (12) and is located directly above the second panel microstrip antenna (42), and the first antenna director (71) and the second antenna director (72) are arranged correspondingly with the first panel microstrip antenna (41) and the second panel microstrip antenna (42) respectively.

5. The omnidirectional signal adjustable enhanced electronic tag according to claim 1, wherein: The operable functions of the radio frequency button (3) include a normal mode, a low sensitivity mode and a high sensitivity mode, the functions of the normal mode, the low sensitivity mode and the high sensitivity mode are all controlled by the radio frequency button (3), and different modes are switched by manually pressing the radio frequency button (3).

6. The omnidirectional signal adjustable enhanced electronic tag according to claim 2, characterized in that: One end of the PCB board (2) is provided with an anti-disassembly switch (8), which is used to transmit to the MCU master chip when the electronic tag is separated from the vehicle body to indicate that a disassembly event has occurred.

7. The omnidirectional signal adjustable enhanced electronic tag according to claim 4, characterized in that: The first panel microstrip antenna (41), the second panel microstrip antenna (42), the first antenna director (71) and the second antenna director (72) are similar in size and shape.

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