CN217846630U

CN217846630U - Radar monitoring device

Info

Publication number: CN217846630U
Application number: CN202123094892.0U
Authority: CN
Inventors: 郭剑文
Original assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Current assignee: Shenzhen Autel Intelligent Aviation Technology Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-11-18
Anticipated expiration: 2031-12-10

Abstract

The utility model belongs to the technical field of the radar, a radar monitoring device is disclosed, including a plurality of radar subassemblies, a plurality of radar subassemblies are end to end in proper order, and every radar subassembly is all outwards launched the electromagnetic wave, and the angle of view of setting for the electromagnetic wave of arbitrary two adjacent radar subassemblies transmission is first angle of view and second angle of view respectively, and the detection area partial overlap of the adjacent boundary line coincidence of first angle of view and second angle of view or first angle of view and second angle of view cover. The utility model discloses in, a plurality of radar components meet end to end in proper order, form the ring body structure. The adjacent boundary line coincidence of the angle of view of the electromagnetic wave of arbitrary two adjacent radar component transmission or the detection zone part coincidence that two angle of view covers to the detection zone of a plurality of radar components superposes in proper order, makes the whole circumference of the ring body structure that a plurality of radar components formed region all can be detected, thereby realizes the control to radar monitoring device's whole circumference, and the control is more reliable.

Description

Radar monitoring device

Technical Field

The utility model relates to a radar technical field especially relates to a radar monitoring device.

Background

The monitoring system is one of the most applied systems in the security system, and the traditional monitoring system generally uses a camera to shoot a monitored area. The camera is divided into a 360-degree panoramic camera and a non-360-degree panoramic camera. The visual distance of the non-360-degree panoramic camera is about 100 meters, and the field angle is about 20 degrees. The 360-degree panoramic camera can realize the panoramic monitoring close to 360 degrees, but the visible distance is only about 20 meters. The shooting quality of the camera is also influenced by weather conditions (such as day, night, sand and dust, haze or rain and snow weather).

Based on the defects of the camera monitoring, the millimeter wave radar is produced as a new monitoring device. The millimeter wave radar emits electromagnetic waves outwards through an antenna on the millimeter wave radar so as to detect a target object in a monitoring area. Compared with camera monitoring, the action distance of the millimeter wave radar can reach 200 meters and cannot be influenced by weather conditions, but the field angle of the millimeter wave radar is generally between 90 degrees and 140 degrees, and monitoring is not in place.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a radar monitoring device can realize 360 monitoring of looking around, and the control reliability is high.

In order to realize the purpose, the following technical scheme is provided:

the radar monitoring device comprises a plurality of radar components which are sequentially connected end to end, each radar component emits electromagnetic waves outwards, the field angles of the electromagnetic waves emitted by any two adjacent radar components are set to be a first field angle and a second field angle respectively, and adjacent boundary lines of the first field angle and the second field angle are overlapped or detection areas covered by the first field angle and the second field angle are partially overlapped.

As the utility model discloses a radar monitoring device's an alternative, the radar subassembly is provided with threely, and is three the radar subassembly is triangle-shaped end to end in proper order.

As an alternative of the radar monitoring device of the present invention, the field angle of the electromagnetic waves emitted by three of the radar components is ± 65 °.

As the utility model discloses a radar monitoring device's an alternative, every the radar subassembly all include the antenna panel and set up in antenna on the antenna panel, it is a plurality of the antenna panel is end to end in proper order, the antenna set up in the outside of antenna panel.

As an alternative of the radar monitoring apparatus of the present invention, the radar component further includes a radio frequency chip;

each antenna plate is provided with the radio frequency chip, the radio frequency chip is electrically connected with the same antenna on the antenna plate, and all the radio frequency chips are in communication connection.

As an alternative of the radar monitoring device of the present invention, the radar component further includes a power chip;

the power supply chip is arranged on one of the antenna plates and is electrically connected with each radio frequency chip; or each antenna plate is provided with the power chip, and the power chip is electrically connected with the radio frequency chip on the same antenna plate.

As an alternative of the radar monitoring device of the present invention, the radar assembly further includes a power chip and a plurality of baseband boards, and the inner side of each antenna board is electrically connected to one baseband board;

the power supply chip is arranged on one of the base band plates and is electrically connected with each radio frequency chip; or each base band plate is provided with the power supply chip, and the power supply chip is electrically connected with the radio frequency chip on the antenna plate corresponding to the base band plate.

As an alternative of the radar monitoring device of the present invention, the radar monitoring device further includes a baseband board and a plurality of radio frequency chips disposed on the baseband board;

each antenna board is electrically connected with the baseband board, one radio frequency chip is correspondingly and electrically connected with each antenna, and all the radio frequency chips are in communication connection.

As an alternative of the radar monitoring device of the present invention, the radar monitoring device further includes a power chip disposed on the baseband board;

one power supply chip is arranged and electrically connected with each radio frequency chip; or the power supply chips are provided with a plurality of chips, and each radio frequency chip is correspondingly electrically connected with one power supply chip.

As an alternative to the radar monitoring device of the present invention, the base band plate is electrically connected to the antenna plate through a floating connector.

The beneficial effects of the utility model are that:

the utility model provides a radar monitoring device, a plurality of radar components meet end to end in proper order, form the annular structure. The adjacent boundary line coincidence of the angle of view of the electromagnetic wave of arbitrary two adjacent radar component transmission or the detection zone part coincidence that two angle of view covers to the detection zone of a plurality of radar components superposes in proper order, makes the whole circumference of the ring body structure that a plurality of radar components formed region all can be detected, thereby realizes the control to radar monitoring device's whole circumference, and the control is more reliable.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic diagram of a radar monitoring apparatus (first configuration) according to an embodiment of the present invention;

fig. 2 is a schematic diagram of the detection range of the radar monitoring apparatus (in the first configuration) according to the embodiment of the present invention;

fig. 3 is a schematic diagram of a radar monitoring apparatus (second configuration) according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a radar assembly (second configuration) provided by an embodiment of the present invention;

fig. 5 is a schematic diagram of a radar monitoring apparatus (a third configuration) according to an embodiment of the present invention.

Reference numerals:

100. a radar component;

1. an antenna; 2. an antenna board; 3. a radio frequency chip; 4. a power supply chip; 5. a base band plate; 6. a floating connector; 7. a BTB interface.

Detailed Description

In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

This embodiment provides a radar monitoring device for fixed object or moving object in the monitoring area surveys, and it is mountable on fixed object such as building, also can install on like car, robot or unmanned aerial vehicle activity object. As shown in fig. 1 to 5, the radar monitoring device includes a plurality of radar assemblies 100, the plurality of radar assemblies 100 are connected end to end in sequence, each radar assembly 100 emits electromagnetic waves outwards, the angles of view of the electromagnetic waves emitted by any two adjacent radar assemblies 100 are set to be a first angle of view and a second angle of view respectively, and adjacent boundary lines of the first angle of view and the second angle of view coincide or detection areas covered by the first angle of view and the second angle of view partially coincide.

Each radar component 100 comprises an antenna 1 arranged on the outer side of the radar component, the antenna 1 emits electromagnetic waves outwards, the electromagnetic waves are scattered towards all directions after reaching the surface of an object in a monitoring area, part of the scattered electromagnetic waves move in the opposite direction and are received by the antenna 1, and the radar components 100 acquire information of the object in the monitoring area according to the received electromagnetic waves. The electromagnetic wave is generally millimeter wave, the wavelength is 1mm-10mm, and the propagation distance is about 200 m.

A plurality of radar assemblies 100 are connected end to end in sequence to form a ring-shaped structure. The adjacent boundary lines of the field angles of the electromagnetic waves emitted by any two adjacent radar assemblies 100 are overlapped or the detection areas covered by the two field angles are partially overlapped, so that the detection areas of the plurality of radar assemblies 100 are sequentially overlapped, the whole circumferential area of the annular body structure formed by the plurality of radar assemblies 100 can be detected, the whole circumferential monitoring of the radar monitoring device is realized, and the monitoring is more reliable.

In the present embodiment, the radar monitoring apparatus includes three radar assemblies 100, and exemplarily, the three radar assemblies 100 are combined differently, so that the radar monitoring apparatus has three configurations, which is described in detail below. In other embodiments, the three radar assemblies 100 may also adopt other combination manners as long as the detection areas of the three radar assemblies 100 can be sequentially overlapped, which is not described in detail herein.

The first configuration:

as shown in fig. 1 and 2, three radar assemblies 100 are triangular and are connected end to end in sequence. Specifically, the three radar assemblies 100 are in the shape of an equilateral triangle. The field angle α of each radar assembly 100 is ± 65 ° (horizontal field angle), and the field angles of the three radar assemblies 100 are overlapped, so that the whole radar monitoring device realizes 360 ° detection. The field angle is the maximum spatial angular range over which the electromagnetic waves emitted by the radar assembly 100 can detect an object.

The field angles of the three radar units 100 in fig. 2 are set to α 1, α 2, and α 3, respectively. Two adjacent boundary lines of alpha 1 and alpha 2 are intersected at the point a, and a line segment from the emission origin of the electromagnetic wave to the point a and the outer side surface of the radar monitoring device form a first detection blind area A by the two adjacent boundary lines of alpha 1 and alpha 2. Similarly, two adjacent boundary lines of alpha 2 and alpha 3 intersect at the point B, and a line segment from the emission origin of the electromagnetic wave to the point B and the outer side surface of the radar monitoring device form a second detection blind area B by the two adjacent boundary lines of alpha 2 and alpha 3; two adjacent boundary lines of alpha 3 and alpha 1 are intersected at a point C, and a line segment from a transmitting origin of electromagnetic waves to the point C and the outer side surface of the radar monitoring device enclose a third detection blind area C by the two adjacent boundary lines of alpha 3 and alpha 1. It should be noted that the areas of the first detection blind area a, the second detection blind area B, and the third detection blind area C are relatively small, and an object in the monitoring area generally enters the detection area first, but does not suddenly appear in the detection blind area, so that the reliability of monitoring is not substantially affected.

It will be appreciated that the three radar assemblies 100 may also be arranged in an isosceles triangle or generally triangular shape, not necessarily an equilateral triangle, and that the field of view of each radar assembly 100 may be adjusted accordingly.

Each radar assembly 100 comprises an antenna plate 2, an antenna 1 and a radio frequency chip 3. The three antenna boards 2 are connected end to end in sequence. Each antenna plate 2 is provided with an antenna 1 and a radio frequency chip 3. The antenna 1 is disposed outside the antenna plate 2, and is configured to emit electromagnetic waves and receive electromagnetic waves reflected by an object. The radio frequency chip 3 is electrically connected with the antenna 1 on the same antenna board 2. The radio frequency chip 3 converts the radio signal into electromagnetic wave with certain waveform, and sends out through the antenna 1 resonance. The three radio frequency chips 3 are connected in a communication mode.

Illustratively, SPI (Serial Peripheral Interface) and UART (Universal Asynchronous Receiver Transmitter) communication connection can be realized between two adjacent antenna boards 2 through a BTB Interface 7 (board to board connector) or a FPC Interface (Flexible Printed Circuit board), so that connection is convenient and signal transmission is stable. Optionally, the three antenna boards 2 may adopt a master-slave mode, and output detection signals to the outside through a TCP (Transport Control Protocol)/UPD (User Data Protocol), RS485, RS232, and CAN-FD interface.

The radar assembly 100 also includes a power chip 4. One of the antenna boards 2 is provided with a power chip 4, and the power chip 4 is electrically connected with each radio frequency chip 3 to supply power to the three radio frequency chips 3 simultaneously. Or, each antenna board 2 may also be provided with a power chip 4, the power chip 4 is electrically connected to the radio frequency chip 3 on the same antenna board 2, and each power chip 4 supplies power to the corresponding radio frequency chip 3. The power chip 4 is arranged on the antenna board 2, which is equivalent to the antenna board 2 and the base band board (the circuit board provided with the power chip 4) are integrated into a board, so that the design configuration is convenient. Alternatively, the power chips 4 may be disposed on two of the antenna boards 2, where one power chip 4 is used to supply power to one radio frequency chip 3, and the other power chip 4 is used to supply power to the other two radio frequency chips 3.

Obviously, in other embodiments, the number of the radar assemblies 100 in the first configuration may also be four, five or more, four radar assemblies 100 may be connected end to end in a rectangular shape, a prismatic shape or a trapezoidal shape, five radar assemblies 100 may be connected end to end in a pentagonal shape, and a plurality of radar assemblies 100 may be connected end to end in a polygonal shape. When the number of the radar assemblies 100 is different, the field angle of the radar assembly 100 can be adjusted to adjust the size of the detection blind area of two adjacent radar assemblies 100.

In a second configuration:

as shown in fig. 3 and 4, the difference from the first configuration is that the radar assembly 100 further includes a plurality of base band plates 5, one base band plate 5 is electrically connected to the inner side of each antenna plate 2, and the power supply chip 4 is disposed on the base band plate 5 instead of the antenna plate 2.

The radar assembly 100 employs a dual-plate mode including the antenna plate 2 and the baseband plate 5, which facilitates design and production. Illustratively, the base band plate 5 is disposed in parallel with the corresponding antenna board 2. Optionally, the baseband board 5 is electrically connected with the corresponding antenna board 2 through a vehicle-gauge-level floating connector 6, so that connection is reliable and communication is stable. Two adjacent antenna boards 2 can be electrically connected in the first configuration, which is not described herein; or, the three antenna boards 2 may be an integral bending structure, and the material of the antenna boards 2 may be an aluminum alloy.

The number of the power source chips 4 is one, two, or three. When the number of the power chips 4 is one, the power chip 4 may be disposed on any one of the three baseband boards 5, and the power chip 4 is electrically connected to three rf chips (not shown in fig. 3 and 4) at the same time to supply power to the three rf chips at the same time. When the number of the power chips 4 is two, the power chips 4 are arranged on two of the antenna boards 2, wherein one power chip 4 is used for supplying power to one radio frequency chip, and the other power chip 4 is used for supplying power to the other two radio frequency chips. When the number of the power chips 4 is three, each base band plate 5 is provided with one power chip 4, and the power chips 4 are electrically connected with the radio frequency chips on the antenna plates 2 corresponding to the base band plates 5.

Obviously, in other embodiments, the number of the radar assemblies 100 in the second configuration may be four, five or more, four radar assemblies 100 may be connected end to end in sequence in a rectangular shape, a prismatic shape or a trapezoidal shape, five radar assemblies 100 may be connected end to end in sequence in a pentagonal shape, and a plurality of radar assemblies 100 may be connected end to end in sequence in a polygonal shape.

In a third configuration:

as shown in fig. 5, the difference from the first configuration is that: the radar component 100 further comprises a base band plate 5 and a power chip 4, wherein the base band plate 5 is provided with one, each antenna plate 2 is electrically connected with the base band plate 5, the power chip 4 and the three radio frequency chips 3 are arranged on the base band plate 5 instead of being arranged on the antenna plate 2, each antenna 1 is electrically connected with one radio frequency chip 3 corresponding to each antenna, and the three radio frequency chips 3 are in communication connection. One or three power supply chips 4 may be provided. When the number of the power chips 4 is one, the power chips 4 are electrically connected with the three radio frequency chips 3 at the same time so as to supply power to the three radio frequency chips 3 at the same time. When the number of the power chips 4 is three, each radio frequency chip 3 is correspondingly electrically connected with one power chip 4, and the power chips 4 supply power to the corresponding radio frequency chips 3.

Illustratively, each antenna board 2 is perpendicularly connected to the base band board 5, facilitating design and assembly. Alternatively, similar to the second configuration, the base band plate 5 is electrically connected to the corresponding antenna plate 2 through a floating connector 6 of a vehicle gauge level, and the connection is reliable and the communication is stable.

Obviously, in other embodiments, the radar assembly 100 of the third configuration may also include four, five, or more antenna boards 2; the four radar components 100 can be in a rectangular shape, a prismatic shape or a trapezoidal shape, are sequentially connected end to end and are all electrically connected with the same baseband plate 5; the five radar components 100 can be sequentially connected end to end in a pentagonal shape and are electrically connected with the same baseband plate 5; the plurality of radar components 100 may be polygonal in shape, connected end to end in sequence, and all electrically connected to the same baseband board 5.

In the radar monitoring device that this embodiment provided, a plurality of radar components 100 are end to end in proper order, form the ring body structure, the detection area part coincidence that the adjacent boundary line of the angle of view of the electromagnetic wave of arbitrary two adjacent radar components 100 transmission or two angle of views cover, thereby the detection area of a plurality of radar components 100 superposes in proper order, make the region of the whole circumference of the ring body structure that a plurality of radar components 100 formed all can be detected, thereby realize the control to the whole circumference of radar monitoring device, the control is more reliable.

It should be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The radar monitoring device is characterized by comprising a plurality of radar assemblies (100), wherein the plurality of radar assemblies (100) are connected end to end in sequence, each radar assembly (100) emits electromagnetic waves outwards, the field angles of the electromagnetic waves emitted by any two adjacent radar assemblies (100) are set to be a first field angle and a second field angle respectively, and the adjacent boundary lines of the first field angle and the second field angle are overlapped or the detection areas covered by the first field angle and the second field angle are partially overlapped.

2. The radar monitoring device according to claim 1, wherein there are three radar assemblies (100), and the three radar assemblies (100) are connected end to end in a triangular shape.

3. The radar monitoring device according to claim 2, wherein the field angles of the electromagnetic waves emitted by the three radar assemblies (100) are all ± 65 °.

4. The radar monitoring device according to claim 1, wherein each of the radar components (100) includes an antenna plate (2) and an antenna (1) disposed on the antenna plate (2), the antenna plates (2) are sequentially connected end to end, and the antenna (1) is disposed outside the antenna plates (2).

5. The radar monitoring device according to claim 4, characterized in that the radar assembly (100) further comprises a radio frequency chip (3);

each antenna plate (2) is provided with the radio frequency chip (3), the radio frequency chip (3) is electrically connected with the same antenna (1) on the antenna plate (2), and all the radio frequency chips (3) are in communication connection.

6. The radar monitoring device according to claim 5, characterized in that the radar assembly (100) further comprises a power supply chip (4);

the power supply chip (4) is arranged on one of the antenna plates (2), and the power supply chip (4) is electrically connected with each radio frequency chip (3); or each antenna plate (2) is provided with the power chip (4), and the power chip (4) is electrically connected with the radio frequency chip (3) on the same antenna plate (2).

7. The radar monitoring device according to claim 5, wherein the radar assembly (100) further comprises a power chip (4) and a plurality of baseband boards (5), one baseband board (5) being electrically connected to an inner side of each antenna board (2);

the power supply chip (4) is arranged on one base band plate (5), and the power supply chip (4) is electrically connected with each radio frequency chip (3); or each base band plate (5) is provided with the power chip (4), and the power chip (4) is electrically connected with the radio frequency chip (3) on the antenna plate (2) corresponding to the base band plate (5).

8. The radar monitoring device according to claim 4, further comprising a baseband board (5) and a plurality of radio frequency chips (3) disposed on the baseband board (5);

each antenna plate (2) is electrically connected with the baseband plate (5), each antenna (1) is correspondingly electrically connected with one radio frequency chip (3), and all the radio frequency chips (3) are in communication connection.

9. The radar monitoring device according to claim 8, further comprising a power supply chip (4) provided on the baseband board (5);

one power supply chip (4) is arranged, and one power supply chip (4) is electrically connected with each radio frequency chip (3); or the power supply chip (4) is provided with a plurality of chips, and each radio frequency chip (3) is correspondingly and electrically connected with one power supply chip (4).

10. Radar monitoring device according to claim 7 or 8, characterised in that the base band plate (5) and the antenna plate (2) are electrically connected by a floating connector (6).