CN221199942U - Rotary millimeter wave radar sensor - Google Patents
Rotary millimeter wave radar sensor Download PDFInfo
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- CN221199942U CN221199942U CN202322687545.1U CN202322687545U CN221199942U CN 221199942 U CN221199942 U CN 221199942U CN 202322687545 U CN202322687545 U CN 202322687545U CN 221199942 U CN221199942 U CN 221199942U
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- 238000001514 detection method Methods 0.000 claims abstract description 50
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000004078 waterproofing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
A rotary millimeter wave radar sensor comprising: the motor tripod head comprises a shell body formed by a bottom plate and a side plate which are connected with each other, a main control circuit board arranged on the bottom plate, a motor tripod head arranged on the side plate, a tripod arranged on the motor tripod head and a millimeter wave detection circuit board arranged at the top end of the tripod, wherein the main control circuit board is in communication connection with the motor tripod head and the millimeter wave detection circuit board, and the main control circuit board is arranged to drive the motor tripod head and the millimeter wave detection circuit board arranged on the motor tripod head to rotate. The product has simple integral structure and convenient installation, and greatly improves the applicable automobile types. For example, the product may be mounted in a license plate location in the rear of an automobile.
Description
Technical Field
The utility model relates to the technical field of intelligent safety of automobiles, in particular to a rotary millimeter wave radar sensor.
Background
With the continuous development of technology and the increasing demand of human beings for safe driving of automobiles, related automobile manufacturers or automobile accessory manufacturers have begun to develop safer intelligent auxiliary automobile products, such as lane-changing auxiliary system products realized by installing millimeter wave radar sensors at proper positions of automobile bodies to detect the occurrence, speed, direction and the like of target vehicles in various directions, thereby reminding drivers of current vehicles to pay attention to safety or take necessary measures when dangerous situations occur.
At present, the detection of the front target obstacle by the vehicle is mainly finished through a laser radar, a millimeter wave radar and a camera, and the prediction is carried out according to the detected dynamic state of the front target obstacle. Generally, a laser radar has a large detection range, and the detection range is limited to a certain range due to the characteristics of a millimeter wave radar and a camera.
Meanwhile, in the prior art, the lane change auxiliary system product needs to use two millimeter wave sensor probes to respectively realize the detection of a left lane and a right lane. Moreover, the lane change auxiliary system product in the prior art needs to be installed at a specific position on the tail bumper of the automobile, has great installation difficulty, and needs a complicated verification procedure to ensure the accuracy of the installation position.
Generally, the functions of lane-changing auxiliary system products include a blind zone monitoring function (BSD), lane-changing auxiliary warning (CVW), and reverse vehicle side warning (RCTA).
The BSD functions as: by installing two millimeter wave radar sensors in the rear bumper of the automobile, the target vehicle approaching in the range of 30 meters behind the left and right of the automobile is detected in real time, and an acousto-optic signal is sent out immediately to remind a driver, so that potential hazards such as lane changing and the like of driving are prevented.
RCTA have the following functions: when the target vehicle enters the rear transverse incoming vehicle early warning area and the collision time with the vehicle is less than 2 seconds, the system sends out a warning signal until the target vehicle leaves the detection area, and the warning is canceled.
The functions generally depend on a millimeter wave radar sensor on the left to monitor a left lane in real time, and a millimeter wave radar sensor probe on the right to monitor a right lane in real time. Based on the development of the millimeter wave chip at present, the horizontal detection angle of the millimeter wave chip of the built-in antenna is about 120 degrees.
In summary, the prior art adopts two millimeter wave radar sensors to realize the lane changing auxiliary function, so the cost is higher, and the sensors are required to be installed on the automobile bumper, so the installation is tedious and time-consuming, and the large-scale popularization and application of lane changing auxiliary products are not facilitated.
Accordingly, there is a need in the art to provide an improved millimeter wave radar sensor that overcomes the above-described deficiencies of the prior art.
Disclosure of utility model
An object of the present utility model is to solve the above-described problems and to provide a rotary millimeter wave radar sensor.
In order to meet the aim of the utility model, the utility model adopts the following technical scheme:
A rotary millimeter wave radar sensor comprising: the motor tripod head comprises a shell body formed by a bottom plate and a side plate which are connected with each other, a main control circuit board arranged on the bottom plate, a motor tripod head arranged on the side plate, a tripod arranged on the motor tripod head and a millimeter wave detection circuit board arranged at the top end of the tripod, wherein the main control circuit board is in communication connection with the motor tripod head and the millimeter wave detection circuit board, and the main control circuit board is arranged to drive the motor tripod head and the millimeter wave detection circuit board arranged on the motor tripod head to rotate.
The main control circuit board is in communication connection with the motor holder in various modes, for example, in one embodiment, the main control circuit board and the motor holder are in communication through Bluetooth, bluetooth communication is adopted, wires are not needed, and therefore the overall internal structure is ensured to be concise. In another embodiment, the two can be realized by means of a cable, and the cable connection has the advantage of stable propagation and no interference of external electromagnetic wave signals.
The main control circuit board can also be connected with the millimeter wave detection circuit board in a communication manner, for example, in one embodiment, the main control circuit board and the millimeter wave detection circuit board are communicated through Bluetooth, and Bluetooth communication is adopted, so that wires are not needed, and the overall internal structure is ensured to be concise. In another embodiment, the two can be realized by means of a cable, and the cable connection has the advantage of stable propagation and no interference of external electromagnetic wave signals.
Further preferably, the housing further includes two sealing plates disposed opposite to each other, and disposed on left and right sides of the bottom edge, respectively, so as to protect structures in the housing, such as the motor holder, the tripod, and the millimeter wave detection circuit board, such as dust-proof, water-proof, and anti-collision.
Further preferably, the housing further includes a front plate vertically disposed at a front edge of the bottom plate, which also protects structures in the housing, such as a motor cradle, a tripod, and a millimeter wave detection circuit board, such as dust and water proofing, and collision proofing.
More preferably, the housing further includes a top plate horizontally disposed on top of the two sealing plates, the side plates and the front plate so as to seal the housing, and the sealed housing can protect structures in the housing, such as a motor tripod head, a tripod and a millimeter wave detection circuit board, such as dust protection, water protection and collision protection.
Compared with the prior art, the utility model has the following beneficial technical effects:
In the embodiment, only a single millimeter wave radar sensor is adopted, two similar sensors are not adopted, and the angle and the azimuth of the single millimeter wave radar sensor are adjusted by the motor holder capable of freely rotating left and right in a certain angle range, so that the BSD/CVW/RCTA function is realized, and the automobile type applicable to the automobile is greatly improved. For example, the product may be mounted in a license plate location in the rear of an automobile.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a perspective view of a rotary millimeter wave radar sensor according to the present utility model.
Fig. 2 is an internal structural view of the rotary millimeter wave radar sensor of the present utility model.
Fig. 3 is a state diagram of the millimeter wave detection circuit board of the rotary millimeter wave radar sensor of the present utility model rotated 90 degrees to the left.
Fig. 4 is a state diagram of the millimeter wave detection circuit board of the rotary millimeter wave radar sensor of the present utility model rotated 90 degrees to the right.
Fig. 5 shows a flowchart of the operation of the millimeter wave detection circuit board of the rotary millimeter wave radar sensor of the present utility model.
Fig. 6 shows a flowchart of the operation of the main control circuit board of the rotary millimeter wave radar sensor of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In one embodiment of the present utility model, referring to fig. 1-6, a rotary millimeter wave radar sensor 100 includes: the motor tripod head comprises a shell body formed by a bottom plate 12 and a side plate 14 which are connected with each other, a main control circuit board 22 arranged on the bottom plate 12, a motor tripod head 24 arranged on the side plate 14, a tripod 26 arranged on the motor tripod head 24 and a millimeter wave detection circuit board 28 arranged at the top end of the tripod 26, wherein the main control circuit board 22 is in communication connection with the motor tripod head 24 and the millimeter wave detection circuit board 28, and the main control circuit board 22 is arranged to drive the motor tripod head 24 and the millimeter wave detection circuit board 28 arranged on the motor tripod head 24 to rotate.
Fig. 5 shows the operation of the main control circuit board 22. First, a step of power-on start-up and configuration initialization is performed, that is, a state corresponding to the rotational orientation of the motor pan/tilt head 24 being 0 (millimeter wave detection circuit board 28 being in a horizontal state). Then, the system waits for the radar host to send a reversing signal, after receiving the reversing signal, and if not, the system continues to wait for the radar host to send the reversing signal, if yes, the system determines whether the vehicle is in a reversing state, if yes, the step of determining the direction of the steering wheel of the vehicle (the steering wheel is in an original state in the initial situation) is executed, and if not, the system sends the detection signal of the millimeter wave detection circuit board 28 to the main control circuit board 22 (the radar host) in real time. In the step of executing the judgment of the direction of the steering wheel of the automobile (the steering wheel is in the original state in the initial situation), if the judgment result is no, judging whether the steering wheel of the radar host receives the direction information, if so, turning the steering wheel left by 90 degrees to the left by the motor holder 24 (refer to fig. 3); if the steering wheel is turned right, the motor pan/tilt 24 is turned right 90 degrees (refer to fig. 4); if the steering wheel is being returned, the motor pan-tilt 24 returns to its original angle (see fig. 2), and then sends the detection signal of the millimeter wave detection circuit board 28 to the main control circuit board 22 (radar host) in real time.
Fig. 6 shows the operation of millimeter-wave detection circuit board 28. First, the system is powered up and initialized. And secondly, judging whether the automobile is in a reversing state, if so, sending a reversing state instruction to the millimeter wave detection circuit board 28, and if not, sending a non-reversing state instruction to the millimeter wave detection circuit board 28. After sending the reverse state instruction to the millimeter wave detection circuit board 28, receiving the detection data of the millimeter wave detection circuit board 28 in real time and judging the alarm type according to the alarm strategy, then judging whether the alarm strategy is met or not RCTA, if not, continuing to execute the steps of receiving the detection data of the millimeter wave detection circuit board 28 in real time and judging the alarm type according to the alarm strategy, and if so, sending the front-loading product through a vehicle body wire harness such as a CAN (controller area network) to a data format which CAN be identified by the front-loading vehicle type or displaying the alarm type through a display of the rear-loading product. After sending the non-reversing state instruction to the millimeter wave detection circuit board 28, receiving the detection data of the millimeter wave detection circuit board 28 in real time and judging the alarm type according to the alarm strategy, then judging whether the BSD or CVW alarm strategy is met, if not, continuing to execute the steps of receiving the detection data of the millimeter wave detection circuit board 28 in real time and judging the alarm type according to the alarm strategy, if so, sending the front-loading product through a vehicle body wire harness such as a CAN (controller area network) to a data format which CAN be identified by the front-loading vehicle type or displaying the alarm type through a display of the rear-loading product.
In the structure of the utility model, only a single millimeter wave radar sensor is adopted, two similar sensors are not adopted, and the angle and the azimuth of the single millimeter wave radar sensor are adjusted by the motor holder which can freely rotate left and right within a certain angle range, so that the BSD/CVW/RCTA function is realized, thus the whole structure is simple, the installation is convenient, and the applicable automobile type is greatly improved. For example, the product may be mounted in a license plate location in the rear of an automobile.
Preferably, the main control circuit board 22 is communicatively connected to the motor pan/tilt head 24 in various manners, such as in one embodiment, both communicate via bluetooth, and bluetooth is used, so that wires are not required, thereby ensuring a compact overall internal structure. In another embodiment, the two can be realized by means of a cable 31, and the cable connection has the advantage of stable propagation and no interference from external electromagnetic wave signals.
Similarly, the main control circuit board 22 may also be communicatively connected to the millimeter wave detection circuit board 28 in the manner listed above, such as in one embodiment, both communicate via bluetooth, with bluetooth communication, and without wires, thus ensuring a compact overall internal structure. In another embodiment, the two can be realized by means of a cable, and the cable connection has the advantage of stable propagation and no interference of external electromagnetic wave signals.
It is further preferred that the housing further includes two opposite sealing plates 33 which are respectively erected on the left and right sides of the bottom edge 12, so as to protect structures in the housing, such as the motor pan 24, the tripod 26 and the millimeter wave detection circuit board 28, such as dust and water proofing and collision proofing.
It is further preferred that the housing further includes a front plate 36 vertically disposed on the front edge of the base plate 12, which also protects the structures within the housing, such as the motor head 24, tripod 26 and millimeter-wave detection circuit board 28, such as dust and water proofing and impact proofing.
More preferably, the housing further includes a top plate 37 horizontally disposed on top of the two sealing plates 33, the side plates 14 and the front plate 36 to seal the housing, and the sealed housing can protect the structures in the housing, such as the motor holder 24, the tripod 26 and the millimeter wave detection circuit board 28, such as dust, water and collision.
Those of skill in the art will appreciate that the various operations, methods, steps in the flow, acts, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed herein may be alternated, altered, rearranged, disassembled, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
The foregoing is only a partial embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (8)
1. A rotary millimeter wave radar sensor, comprising: the motor tripod head comprises a shell body formed by a bottom plate and a side plate which are connected with each other, a main control circuit board arranged on the bottom plate, a motor tripod head arranged on the side plate, a tripod arranged on the motor tripod head and a millimeter wave detection circuit board arranged at the top end of the tripod, wherein the main control circuit board is in communication connection with the motor tripod head and the millimeter wave detection circuit board, and the main control circuit board is arranged to drive the motor tripod head and the millimeter wave detection circuit board arranged on the motor tripod head to rotate.
2. The rotary millimeter wave radar sensor of claim 1, wherein: the main control circuit board is connected with the motor cradle head through Bluetooth in a communication mode.
3. The rotary millimeter wave radar sensor of claim 1, wherein: the main control circuit board is connected with the motor cradle head in a communication way through a cable.
4. The rotary millimeter wave radar sensor of claim 1, wherein: the main control circuit board is in communication connection with the millimeter wave detection circuit board through Bluetooth.
5. The rotary millimeter wave radar sensor of claim 1, wherein: the main control circuit board is in communication connection with the millimeter wave detection circuit board through a cable.
6. The rotary millimeter wave radar sensor of claim 1, wherein: the shell also comprises two opposite sealing plates which are respectively and vertically arranged at the left side and the right side of the bottom plate.
7. The rotary millimeter wave radar sensor of claim 6, wherein: the shell also comprises a front plate vertically arranged at the front edge of the bottom plate.
8. The rotary millimeter wave radar sensor of claim 7, wherein: the shell also comprises a top plate which is horizontally arranged on the tops of the two sealing plates, the side plates and the front plate so as to seal the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687545.1U CN221199942U (en) | 2023-10-08 | 2023-10-08 | Rotary millimeter wave radar sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322687545.1U CN221199942U (en) | 2023-10-08 | 2023-10-08 | Rotary millimeter wave radar sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221199942U true CN221199942U (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322687545.1U Active CN221199942U (en) | 2023-10-08 | 2023-10-08 | Rotary millimeter wave radar sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221199942U (en) |
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2023
- 2023-10-08 CN CN202322687545.1U patent/CN221199942U/en active Active
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