Vehicle-mounted OBU device with built-in RFID chip and optimized metal interference resistance
Through the built-in RFID chip and the use of anti-metal tag technology, the problems of tag shedding, signal interference and inconvenience in traditional vehicle OBUs are solved, and stable reading and efficient management are achieved.
Patent Information
- Application Number
- CN202422170155.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In traditional vehicle-mounted OBUs, RFID tags are prone to falling off, are disturbed by metal, are complex in manual operation and inconvenient to manage, which affects the normal use and management efficiency of the equipment.
The built-in RFID chip adopts anti-metal tag technology to avoid metal parts and connect with insulating materials to ensure that the RFID chip is consistent with the surface number of the vehicle-mounted OBU, and achieves contactless fast reading.
Improves the stability and read accuracy of RFID chips, simplifies production processes, reduces error rates, improves management efficiency, and ensures efficient reading in complex metal environments.
Smart Images
Figure CN223078701U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle networking, in particular to an in-vehicle OBU device with an embedded RFID chip and optimized anti-metal interference. Background Art
[0002] As a key device in the Electronic Toll Collection (ETC) system, the in-vehicle OBU (On-Board Unit) is widely used in the automatic payment and management of vehicle tolls. The in-vehicle OBU exchanges data with the roadside unit (RSU) through wireless communication technology to achieve automatic deduction of vehicle tolls when passing through the toll station. However, traditional in-vehicle OBUs face many problems in the design and use process, especially in RFID tag integration.
[0003] In the prior art, in-vehicle OBUs usually use the method of pasting external RFID tags to identify devices. These RFID tags are usually located on the outer surface of the OBU and are used to record and read device information. However, this design has some significant deficiencies:
[0004] Tag detachment problem: Externally pasted RFID tags are easily affected by the external environment, such as high temperature, humidity, friction, etc., resulting in tag detachment or damage. Once the tag detaches, the device will not be able to read information normally, affecting its normal use.
[0005] Signal interference problem: The in-vehicle OBU usually contains metal components inside, and the signal of the RFID tag itself is easily interfered by metal objects. If the position of the RFID tag is not properly designed, the metal components may cause attenuation or distortion of the RFID signal, thereby affecting the reading distance and accuracy.
[0006] Complex manual operation: Traditional RFID tags need to be manually pasted after the OBU production is completed, which increases the manual operation steps in the production process, not only increasing the production cost but also increasing the risk of errors. In addition, the manual perfusion process of the OBU number is also relatively cumbersome, prone to errors or delays.
[0007] Inconvenient management: For manufacturers and management parties, during the transportation, receipt, warehousing, and issuance of OBU devices, each device needs to be numbered and its information read. If the RFID tag number is inconsistent with the number on the OBU surface, or the tag cannot be read due to tag detachment or other reasons, it will cause management troubles, increasing the workload and management difficulty.
[0008] Therefore, how to integrate the RFID chip in the in-vehicle OBU while avoiding the interference of metal components on the RFID signal has become an urgent problem to be solved. Summary of the Utility Model
[0009] To solve the technical problems of label detachment, signal interference, complex manual operation, and inconvenient management in the prior art, the present utility model provides a vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference.
[0010] The technical solution provided by the present utility model is as follows:
[0011] A vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference provided by the present utility model includes:
[0012] The vehicle-mounted OBU includes a housing, an RFID chip, an inner circuit board, and a circuit board bracket. The housing includes an upper shell and a lower shell, and the upper shell and the lower shell are connected by a buckle to protect the internal components. The RFID chip is pre-pressed on the inner layer of the housing, and the circuit board bracket is used to fix and support the inner circuit board.
[0013] Preferably, the RFID chip has the same surface number as the vehicle-mounted OBU. Through a preset integrated design, the RFID chip can stably read the identification information of the vehicle-mounted OBU.
[0014] Preferably, the RFID chip adopts anti-metal label technology, and the encapsulation material of the RFID chip is an anti-metal material to reduce the interference of metal components inside the vehicle-mounted OBU on the RFID signal.
[0015] Preferably, the installation position of the RFID chip avoids the circuit board bracket inside the vehicle-mounted OBU to reduce the interference of metal on RFID reading.
[0016] Preferably, the inner circuit board is connected to the housing through the circuit board bracket made of an insulating material to prevent the RFID chip from directly contacting the metal components inside the vehicle-mounted OBU, thereby optimizing the signal transmission effect.
[0017] Preferably, the integrated design of the RFID chip allows the vehicle-mounted OBU to be quickly and non-contact read through a UHF band scanning device in a vehicle-mounted environment, simplifying the device management and information tracking process.
[0018] Preferably, the design of the housing ensures an appropriate distance between the internal position of the RFID chip and the surface of the vehicle-mounted OBU to optimize the signal transmission effect and prevent signal interference.
[0019] The beneficial effects brought by the technical solution provided by the present utility model at least include:
[0020] (1) In the present utility model, by pre-pressing the RFID chip inside the housing of the vehicle-mounted OBU instead of pasting it externally, the risk of the chip falling off or being damaged due to external environmental factors (such as high temperature, humidity, friction, etc.) is significantly reduced. This built-in design improves the stability and durability of the RFID chip, ensuring its long-term stable operation in the vehicle-mounted environment;
[0021] (2) In the present utility model, by optimizing the internal structure design of the vehicle-mounted OBU, adopting anti-metal tag technology, and reasonably avoiding the metal components inside the vehicle-mounted OBU, the influence of metal interference on the RFID signal is reduced. This design significantly improves the reading distance and accuracy of the RFID signal, ensuring that the vehicle-mounted OBU can still achieve efficient non-contact reading in a complex metal environment;
[0022] (3) In the present utility model, by integrating the RFID chip during the production process of the vehicle-mounted OBU, making the RFID chip consistent with the surface number of the vehicle-mounted OBU, unique identification information is available at the time of factory shipment. This not only simplifies the production process and reduces the subsequent steps of manual label pasting, but also provides a convenient management means for subsequent links such as equipment transportation, receipt, warehousing, and issuance, effectively improving the overall production and management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0024] Figure 1 FIG. is a bottom view structural schematic diagram of a vehicle-mounted OBU device with an internally installed RFID chip and optimized anti-metal interference provided by an embodiment of the present utility model;
[0025] Figure 2 FIG. is a top view structural schematic diagram of a vehicle-mounted OBU device with an internally installed RFID chip and optimized anti-metal interference provided by an embodiment of the present utility model;
[0026] Figure 3 FIG. is a side view structural schematic diagram of a vehicle-mounted OBU device with an internally installed RFID chip and optimized anti-metal interference provided by an embodiment of the present utility model;
[0027] Figure 4 FIG. is a Figure 3 structural schematic diagram of the cross-section at A-A of a vehicle-mounted OBU device with an internally installed RFID chip and optimized anti-metal interference provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] The technical solutions in the present utility model will be described below in conjunction with the accompanying drawings.
[0029] In the embodiments of the present utility model, words such as "exemplarily" and "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" in the present utility model should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of the word "exemplary" is intended to present concepts in a specific manner. In addition, in the embodiments of the present utility model, the meaning expressed by "and / or" can be both, or either one of the two.
[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments.
[0031] Refer to the attached Figures 1-4 figures, which show a schematic structural diagram of a vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference.
[0032] The embodiments of the present utility model provide a vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference, including:
[0033] The vehicle-mounted OBU includes a housing, an RFID chip 21, an inner circuit board 31 and a circuit board bracket 35. The housing includes an upper shell 11 and a lower shell 12. The upper shell 11 and the lower shell 12 are connected by a buckle for protecting the internal components. The RFID chip 21 is pre-pressed on the inner layer of the housing, and the circuit board bracket 35 is used to fix and support the inner circuit board 31.
[0034] In a possible implementation manner, the RFID chip 21 has the same surface number as the vehicle-mounted OBU. Through a preset integrated design, the RFID chip 21 can stably read the identification information of the vehicle-mounted OBU.
[0035] It should be noted that by designing the RFID chip to be consistent with the surface number of the vehicle-mounted OBU, it is ensured that the RFID chip can stably and accurately read the identification information of the OBU. This design simplifies the management process of device numbers, avoids additional steps of number perfusion and label pasting, and improves production and use efficiency.
[0036] In a possible implementation manner, the RFID chip 21 adopts anti-metal label technology, and the packaging material of the RFID chip 21 is an anti-metal material to reduce the interference of the metal components inside the vehicle-mounted OBU on the RFID signal.
[0037] It should be noted that the RFID chip adopts anti-metal tag technology and is encapsulated with anti-metal materials, effectively reducing the interference of the metal components inside the OBU on the RFID signal. This can ensure that the RFID chip can still maintain good signal reading performance in a complex metal environment, improving the stability and accuracy of signal transmission.
[0038] In a possible implementation, the installation position of the RFID chip 21 avoids the circuit board bracket 35 inside the vehicle-mounted OBU to reduce the interference of metal on RFID reading.
[0039] It should be noted that by installing the RFID chip at a position avoiding the circuit board bracket inside the vehicle-mounted OBU, the shielding and interference of the metal bracket on the RFID signal are effectively reduced. This layout design further optimizes the signal reading effect and ensures the reliability of the RFID chip during use.
[0040] In a possible implementation, the inner circuit board 31 and the outer shell are connected through a circuit board bracket 35 made of insulating material to prevent the RFID chip 21 from directly contacting the metal components inside the vehicle-mounted OBU, thereby optimizing the signal transmission effect.
[0041] It should be noted that using a circuit board bracket made of insulating material to connect the inner circuit board and the outer shell prevents the RFID chip from directly contacting the metal components inside the vehicle-mounted OBU. This design prevents direct signal interference, thereby optimizing the transmission effect of the RFID signal and improving the reading efficiency and accuracy.
[0042] In a possible implementation, the integrated design of the RFID chip 21 allows the vehicle-mounted OBU to perform non-contact and fast reading through a UHF band scanning device in a vehicle-mounted environment, simplifying the device management and information tracking process.
[0043] It should be noted that the integrated design of the RFID chip enables the vehicle-mounted OBU to achieve non-contact and fast reading through a scanning device in the UHF band. This simplifies the device management and information tracking process, making the operations of the device more efficient in transportation, warehousing, distribution and other links.
[0044] In a possible implementation, the design of the outer shell ensures that the internal position of the RFID chip 21 maintains an appropriate distance from the surface of the vehicle-mounted OBU to optimize the signal transmission effect and prevent signal interference.
[0045] It should be noted that the housing design ensures an appropriate distance between the internal position of the RFID chip and the surface of the vehicle-mounted OBU, thereby optimizing the signal transmission effect and preventing possible signal interference. This design ensures that the RFID signal remains stable and clear during the reading process, avoiding signal attenuation or interference caused by improper positioning.
[0046] On the bottom surface of the lower housing 12, a solar panel 14 and a tamper-proof button 15 are respectively provided. The inner bottom surface of 12 is connected to a circuit board 31 through a circuit board bracket 35. The circuit board is connected to a card box 32 through a card slot bracket 34. One end of the card box 32 close to the side surface of the lower housing 12 is provided with a card slot 33. A bayonet 22 is provided at the corresponding position on the side surface of 11. After the upper housing 11 and the lower housing 12 are fixed by a buckle, the access card 13 passes through the bayonet 22 and is inserted into 33, so that the vehicle-mounted OBU can read the access card 13.
[0047] A battery 34 is also provided inside 12. The solar panel 14 is connected to the battery 34 for charging the battery 34. The battery 34 is connected to the circuit board 31 for supplying power to the circuit board 31.
[0048] An undisplayed display screen is also provided at the upper end of the card box 32. A transparent opening 16 is provided at the upper end of 11, and the information displayed on the display screen can be observed through the transparent opening 16.
[0049] The present utility model provides a vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference. By pre-pressing the RFID chip inside the housing of the vehicle-mounted OBU, efficient management and information tracking of the vehicle-mounted OBU device are achieved. The following is a detailed description of this specific embodiment.
[0050] In this embodiment, the housing of the vehicle-mounted OBU is made of a high-strength and high-temperature-resistant plastic material to ensure stability in various vehicle-mounted environments. The RFID chip is pre-pressed on the inner layer of the housing through a hot pressing process and is located at a position far from the metal bracket and other electrical components. The selection of this position is based on the signal interference test results, ensuring that the signal of the RFID chip can be effectively read in various metal environments.
[0051] During the pre-pressing process, the RFID chip is associated with the surface number of the vehicle-mounted OBU. Specifically, the information stored in the RFID chip is consistent with the number printed on the housing. In this way, after the OBU is produced, the uniqueness identification of the device can be achieved without additional manual numbering or perfusion steps. The pre-pressed RFID chip maintains an appropriate distance from the surface of the OBU housing, avoiding signal attenuation problems caused by direct contact.
[0052] By integrating the RFID chip into the in-vehicle OBU, the device is equipped with a unique electronic identity at the time of factory shipment. During transportation, warehousing, and distribution, UHF band scanners can be used to achieve non-contact and rapid batch reading. This design effectively reduces the manual operation steps in device management, improves efficiency, and reduces the error rate.
[0053] The position of the RFID chip is optimized to be away from the metal components inside the in-vehicle OBU. At the same time, anti-metal tag technology is adopted, and the encapsulation material is selected as a special material with good anti-metal interference performance. This design ensures that the RFID signal can still be effectively read in the vehicle environment, significantly improving the reading distance and accuracy.
[0054] The pre-pressing process directly integrates the RFID chip into the inner layer of the OBU housing, avoiding problems such as peeling and damage caused by traditional external label pasting, and simplifying the production process of the OBU. This built-in design not only reduces production costs but also reduces the maintenance workload during subsequent use.
[0055] The beneficial effects brought by the technical solution provided by the embodiments of the present utility model at least include:
[0056] (1) In the present utility model, by pre-pressing the RFID chip inside the housing of the in-vehicle OBU instead of pasting it externally, the risk of the chip falling off or being damaged due to external environmental factors (such as high temperature, humidity, friction, etc.) is significantly reduced. This built-in design improves the stability and durability of the RFID chip, ensuring its long-term stable operation in the in-vehicle environment;
[0057] (2) In the present utility model, by optimizing the internal structure design of the in-vehicle OBU, adopting anti-metal tag technology, and reasonably avoiding the metal components inside the in-vehicle OBU, the influence of metal interference on the RFID signal is reduced. This design significantly improves the reading distance and accuracy of the RFID signal, ensuring that the in-vehicle OBU can still achieve efficient non-contact reading in a complex metal environment;
[0058] (3) In the present utility model, by integrating the RFID chip during the production process of the in-vehicle OBU, making the RFID chip consistent with the surface number of the in-vehicle OBU, a unique identification information is available at the time of factory shipment. This not only simplifies the production process, reduces the steps of manual label pasting in the later stage, but also provides a convenient management means for subsequent device transportation, receipt, warehousing, and distribution, effectively improving the overall production and management efficiency.
[0059] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily conceive of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.
[0060] The following points need to be explained:
[0061] (1) The attached drawings of the embodiments of the present utility model only relate to the structures involved in the embodiments of the present utility model, and other structures can refer to the general design.
[0062] (2) For clarity, in the attached drawings used to describe the embodiments of the present utility model, the thickness of layers or regions is enlarged or reduced, that is, these drawings are not drawn according to the actual scale. It can be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element can be "directly" on or under the other element or there can be intermediate elements.
[0063] (3) Without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other to obtain new embodiments.
[0064] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. The protection scope of the present utility model shall be subject to the protection scope of the claimed rights.
Claims
1. An in-vehicle OBU device with an embedded RFID chip and optimized anti-metal interference, characterized in that, Including: The vehicle-mounted OBU includes a housing, an RFID chip (21), an inner circuit board (31), and a circuit board bracket (35). The housing includes an upper shell (11) and a lower shell (12). The upper shell (11) and the lower shell (12) are connected by a buckle to protect the internal components. The RFID chip (21) is pre-pressed on the inner layer of the housing, and the circuit board bracket (35) is used to fix and support the inner circuit board (31).
2. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The RFID chip (21) has the same surface number as the vehicle-mounted OBU. Through a preset integrated design, the RFID chip (21) can stably read the identification information of the vehicle-mounted OBU.
3. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The RFID chip (21) adopts anti-metal label technology, and the encapsulation material of the RFID chip (21) is an anti-metal material to reduce the interference of the metal components inside the vehicle-mounted OBU on the RFID signal.
4. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The installation position of the RFID chip (21) avoids the circuit board bracket (35) inside the vehicle-mounted OBU to reduce the interference of metal on RFID reading.
5. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The inner circuit board (31) is connected to the housing through the circuit board bracket (35) made of an insulating material to prevent the RFID chip (21) from directly contacting the metal components inside the vehicle-mounted OBU, thereby optimizing the signal transmission effect.
6. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The integrated design of the RFID chip (21) allows the vehicle-mounted OBU to be non-contact quickly read by a UHF band scanning device in a vehicle-mounted environment, simplifying the device management and information tracking process.
7. The vehicle-mounted OBU device with an embedded RFID chip and optimized anti-metal interference according to claim 1, characterized in that: The design of the housing ensures that the internal position of the RFID chip (21) maintains an appropriate distance from the surface of the vehicle-mounted OBU to optimize the signal transmission effect and prevent signal interference.