CN219831819U - Vehicle-mounted low-frequency radio frequency detection device - Google Patents
Vehicle-mounted low-frequency radio frequency detection device Download PDFInfo
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- CN219831819U CN219831819U CN202320677001.4U CN202320677001U CN219831819U CN 219831819 U CN219831819 U CN 219831819U CN 202320677001 U CN202320677001 U CN 202320677001U CN 219831819 U CN219831819 U CN 219831819U
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 230000005855 radiation Effects 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008846 dynamic interplay Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a vehicle-mounted low-frequency radio frequency detection device, and relates to the field of vehicle auxiliary driving. Comprising the following steps: the device comprises a first signal acquisition limiting device, a second signal acquisition limiting device and a low-frequency radio frequency data reading device; the first signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign line, and the second signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign board; the first signal acquisition limiting device comprises a first antenna and a first metal flat-bottom conical mask, wherein the first metal flat-bottom conical mask is used for limiting the radiation angle of the first antenna; the second signal acquisition limiting device comprises a second antenna and a second metal flat-bottom conical mask, and the second metal flat-bottom conical mask is used for limiting the radiation angle of the second antenna; the low-frequency radio frequency data reading device is used for reading the data acquired by the first signal acquisition limiting device and the data acquired by the second signal acquisition limiting device to finish auxiliary driving.
Description
Technical Field
The utility model relates to the field of vehicle auxiliary driving, in particular to a vehicle-mounted low-frequency radio frequency detection device.
Background
Along with the rapid development of key technologies such as information communication, internet, cloud computing, artificial intelligence and the like, the vehicle-road cooperation technology is gradually developed into a new trend of the traffic industry. Based on advanced technologies such as sensing and wireless communication, the acquisition and fusion of traffic information are completed by realizing real-time dynamic interaction of vehicle and road information, and the road cooperation technology provides a new technical means for improving traffic running efficiency and traffic safety.
At present, a man-machine co-driving mode for assisting a driver to 'sense-decide-control' is basically formed and gradually tends to be mature, and the man-machine co-driving mode can be a driving mode which exists for a long time in a vehicle-road cooperative environment. One of the applications of the auxiliary driving of the vehicle is automatic driving, and the vehicle completes the function of automatic driving by acquiring information of road markings and road signs. To acquire the information of the road markings and the road signs, the information of the specific road on which the vehicle is located is accurately acquired.
The information of the low-frequency radio frequency electronic tags on the road marking and the road marking is obtained through the low-frequency radio frequency reader, but the low-frequency radio frequency reader obtains the information of the low-frequency radio frequency electronic tags through the antenna signals which are dispersed in an ellipsoidal shape by taking the antenna as the center, so that the low-frequency radio frequency reader actually obtains the information of all the low-frequency radio frequency electronic tags which can be detected in the range of the antenna signals which are dispersed in an ellipsoidal shape by taking the antenna as the center of the low-frequency radio frequency reader, and therefore, a complex operation circuit is required to be additionally arranged for accurately positioning the vehicle to realize the accurate positioning operation of the road where the vehicle is located, thereby increasing the research and development cost, leading a plurality of uncertain factors to exist and reducing the reliability of the whole system.
Therefore, the utility model provides a vehicle-mounted low-frequency radio frequency detection device with a plurality of signal acquisition limiting devices and a low-frequency radio frequency data reading device, which can accurately and reliably acquire road marking and signpost information of a vehicle; the antenna with the limiting devices replaces the low-frequency radio frequency readers with the limiting devices, so that space and cost are saved, and more possibility is provided for the installation position of the vehicle-mounted low-frequency radio frequency detection device.
Disclosure of Invention
The utility model aims to provide a vehicle-mounted low-frequency radio frequency detection device, which can limit the radiation range of an antenna through a mechanical limiting structure, accurately and reliably acquire road marking and signpost information on two sides of a vehicle driving road to position the vehicle, and finish auxiliary driving of the vehicle.
In order to achieve the above object, the present utility model provides the following solutions:
a vehicle-mounted low frequency radio frequency detection device, comprising: the device comprises a first signal acquisition limiting device, a second signal acquisition limiting device and a low-frequency radio frequency data reading device; the first signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign line, and the second signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign board; the low-frequency radio frequency data reading device is used for reading the data acquired by the first signal acquisition limiting device and the data acquired by the second signal acquisition limiting device;
further, the first signal acquisition limiting device comprises a first antenna and a first metal flat-bottom conical mask, wherein the first metal flat-bottom conical mask is used for limiting the radiation angle of the first antenna;
further, the second signal acquisition limiting device comprises a second antenna and a second metal flat-bottom conical mask, and the first metal flat-bottom conical mask is used for limiting the radiation angle of the first antenna;
further, the radiation angle alpha value of the antenna in the first metal flat-bottom conical mask is the angle from the central position of the antenna to the bottom edge of the flat-bottom conical mask; the range of the angle alpha is not a fixed value, and is changed along with the installation angle of the first metal flat bottom conical mask;
further, the radiation angle beta value of the antenna in the second metal flat-bottom conical mask is the angle from the central position of the antenna to the bottom edge of the flat-bottom conical mask; the range of the angle beta is not a fixed value, and is changed along with the installation angle of the second metal flat bottom conical mask;
further, the first metal flat-bottom conical surface cover and the second metal flat-bottom conical surface cover, wherein the metal curved surface cover is used for shielding antenna signals, and is preferably an aluminum product or an aluminum alloy product;
the technical scheme of the utility model has the beneficial effects that:
the utility model limits the radiation range of the antenna through a simple mechanical limiting structure, can accurately acquire the road marking information on two sides of the running road of the vehicle to position the vehicle, does not need to be additionally provided with a complex operation circuit to realize the accurate positioning operation of the road where the vehicle is located, and has simple structure and low cost;
the signal acquisition limiting device is used for limiting the detection range, so that the vehicle can only detect the signals of the nearest road labels on two sides of the vehicle, and the reliability is high;
the utility model is composed of the low-frequency radio frequency data reading device and a plurality of antennas with limiting mechanisms, but not a plurality of low-frequency radio frequency readers, thereby saving the cost.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall schematic diagram of a vehicle-mounted low-frequency RF detection device provided by the utility model;
FIG. 2 is a schematic diagram of a first signal acquisition limiting device;
FIG. 3 is a schematic diagram of a second signal acquisition limiting device;
FIG. 4 is a schematic block diagram of a vehicle-mounted low frequency RF detection device;
the reference numerals in the figures illustrate:
1. first signal acquisition limiting means; 2. a second signal acquisition limiting means; 3. a low frequency radio frequency data reading device; 101. a first antenna; 102. a first flat bottom conical mask; 201. a second antenna; 202. a second flat bottom conical mask; 4. a vehicle center console;
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without creative efforts, are within the scope of the present utility model based on the embodiments of the present utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
A vehicle-mounted low frequency radio frequency detection device, comprising:
comprising the following steps: a first signal acquisition limiting device 1, a second signal acquisition limiting device 2 and a low-frequency radio frequency data reading device 3; the first signal acquisition limiting device 1 comprises a first antenna 101 and a first metal flat-bottom conical veil 102, the first antenna 101 is arranged on top of the first metal flat-bottom conical veil 102, and the first metal flat-bottom conical veil 102 is used for limiting the radiation angle of the first antenna; the second signal acquisition limiting device 2 comprises a second antenna 201 and a second metal flat-bottom conical mask 202, the second antenna 201 is arranged on top of the second metal flat-bottom conical mask 201, and the second metal flat-bottom conical mask 202 is used for limiting the radiation angle of the second antenna 201; the low-frequency radio frequency data reading device 3 reads the low-frequency radio frequency electronic tag information obtained by the first signal acquisition limiting device 1 and the low-frequency radio frequency electronic tag information obtained by the second signal acquisition limiting device 2, and transmits the read data information to the vehicle center console 4.
As shown in fig. 1, since the metal can shield the antenna signal, the first signal acquisition limiting device 1 and the second signal acquisition limiting device 2 can be installed in a vehicle rear view mirror made of a non-metal material. The first signal acquisition limiting device 1 and the second signal acquisition limiting device 2 are simultaneously arranged in the rearview mirrors at the two sides of the vehicle, wherein one installation position of the embodiment can be that the first signal acquisition limiting device 1 is vertically installed with the opening downwards, the radiation angle alpha of an antenna in the first flat-bottom conical mask 101 can be set to 120 degrees, the shielding effect of the first flat-bottom conical mask 102 on the antenna 101 and the shielding effect of a metal shell of the vehicle on the antenna signal can ensure that the first signal acquisition limiting device 1 arranged in the rearview mirror at the left side of the vehicle can only acquire the information of the low-frequency radio frequency electronic tag on the marking line at the left side, which is closest to the vehicle, of the current road on which the vehicle runs; the first signal acquisition limiting device 1 installed in the right side rearview mirror of the vehicle can and can only acquire information of the low frequency radio frequency electronic tag on the marking on the left side closest to the vehicle on the current road on which the vehicle is running. Therefore, by transmitting the information of the low-frequency radio frequency electronic tags on the two mark lines closest to the vehicle acquired by the first signal acquisition limiting device 1 installed in the two side rearview mirrors to the low-frequency radio frequency data reading device 3, it is possible to precisely locate on which road the current vehicle is running.
The opening of the second flat bottom conical mask 202 of the second signal acquisition limiting device 2 is vertically installed upwards, the radiation angle beta of the antenna in the second flat bottom conical mask 202 can be set to 165 degrees, it can be ensured that the second signal acquisition limiting device 2 cannot acquire the information of the low-frequency radio-frequency electronic tags on the road signs below, and the shielding effect of the metal shell of the vehicle on the antenna signals is achieved, so that the second signal acquisition limiting device 2 installed on the left rearview mirror of the vehicle can only acquire the information of the low-frequency radio-frequency electronic tags on all road signs on the left side of the vehicle within the receiving range of the second signal acquisition limiting device 2, the second signal acquisition limiting device 2 installed on the right rearview mirror of the vehicle can only acquire the information of the low-frequency radio-frequency electronic tags on all road signs detected on the right side of the vehicle, and the information of the low-frequency radio-frequency electronic tags on all road signs acquired by the second signal acquisition limiting device 2 on the two sides of the vehicle is transmitted to the low-frequency radio-frequency data reading device 3.
The low-frequency radio frequency data reading device 3 can accurately position the road information of the current running of the vehicle through the information of the low-frequency radio frequency electronic tags on the two mark lines closest to the vehicle, which are acquired by the first signal acquisition limiting device 1 on two sides of the vehicle rearview mirror, and then screen the information of the low-frequency radio frequency electronic tags on the current road sign board, which is acquired by the second signal acquisition limiting device 2 on two sides of the vehicle on the current road, through the road information, the low-frequency radio frequency data reading device 3 transmits the processed information to the vehicle center console 4, and the vehicle center console 4 can accurately control the vehicle to assist driving.
It should be noted that, as shown in fig. 1, the present embodiment only shows one installation position of the vehicle-mounted low-frequency radio frequency detection device and one occupation position of the vehicle when the vehicle runs on a road, but does not show only one arrangement mode of the vehicle-mounted low-frequency radio frequency detection device provided by the present utility model; the number, position, angle, etc. of the specific settings can be set according to the needs in practical application.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "lateral," "top," "bottom," "inner," "outer," "surface," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model, 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, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (5)
1. A vehicle-mounted low-frequency radio frequency detection device, characterized by comprising: the device comprises a first signal acquisition limiting device, a second signal acquisition limiting device and a low-frequency radio frequency data reading device; the first signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign line, and the second signal acquisition limiting device is used for acquiring information of the low-frequency radio frequency electronic tag on the road sign board; the low-frequency radio frequency data reading device is used for reading the data acquired by the first signal acquisition limiting device and the data acquired by the second signal acquisition limiting device; the first signal acquisition limiting device comprises a first antenna and a first metal flat-bottom conical mask, wherein the first metal flat-bottom conical mask is used for limiting the radiation angle of the first antenna; the second signal acquisition limiting device comprises a second antenna and a second metal flat-bottom conical mask, wherein the second metal flat-bottom conical mask is used for limiting the radiation angle of the second antenna.
2. The vehicle-mounted low-frequency radio frequency detection device according to claim 1, wherein the radiation angle alpha of the antenna in the first metal flat-bottom conical mask is an angle from the central position of the antenna to the bottom edge of the flat-bottom conical mask.
3. The vehicle-mounted low-frequency radio frequency detection device according to claim 1, wherein the radiation angle beta of the antenna in the second metal flat-bottom conical mask is an angle from the central position of the antenna to the bottom edge of the flat-bottom conical mask.
4. The device of claim 2, wherein the radiation angle α varies with the angle at which the first metal flat bottom conical mask is mounted.
5. A vehicle-mounted low frequency rf detection device according to claim 3 wherein the radiation angle β varies with the angle at which the second metal flat bottom conical mask is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320677001.4U CN219831819U (en) | 2023-03-31 | 2023-03-31 | Vehicle-mounted low-frequency radio frequency detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320677001.4U CN219831819U (en) | 2023-03-31 | 2023-03-31 | Vehicle-mounted low-frequency radio frequency detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219831819U true CN219831819U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320677001.4U Active CN219831819U (en) | 2023-03-31 | 2023-03-31 | Vehicle-mounted low-frequency radio frequency detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219831819U (en) |
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- 2023-03-31 CN CN202320677001.4U patent/CN219831819U/en active Active
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