CN214669587U - Blind area early warning radar and blind area early warning system - Google Patents
Blind area early warning radar and blind area early warning system Download PDFInfo
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Abstract
The utility model discloses embodiment discloses blind area early warning radar and blind area early warning system, blind area early warning radar include first detection subassembly and second detection subassembly, and first detection subassembly is used for launching first electromagnetic wave, first electromagnetic wave has first detection visual angle, and second detection subassembly is used for launching the second electromagnetic wave, the second electromagnetic wave has the second and surveys the visual angle. And the detection visual angle after the superposition of the first detection visual angle and the second detection visual angle is larger than or equal to 180 degrees. Through the arrangement, the blind area early warning radar can detect the visual field angle of 180 degrees, eliminates the detection blind area and improves the driving safety of the automobile.
Description
Technical Field
The utility model discloses embodiment relates to mobile robot technical field, especially relates to a blind area early warning radar and blind area early warning system.
Background
With the rapid development of the automobile industry, people rely more on automobiles for traveling, but because visual blind spot areas exist on the left side and the right side of the automobiles, a driver can hardly accurately identify all obstacles in the blind spots in the driving process of the automobiles, and safety accidents are easily caused.
At present, in an automobile blind area early warning sensor, the detection field angle range of a millimeter wave radar is usually +/-60 degrees to +/-75 degrees, the detection field angle is small, a large detection blind area occurs, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves of embodiment provides a blind area early warning radar and blind area early warning system who satisfies detection field angle scope.
In order to solve the above technical problem, the utility model discloses a technical scheme that embodiment adopted is:
in one aspect, a blind spot warning radar is provided, which includes:
a first detection component for emitting a first electromagnetic wave, the first electromagnetic wave having a first detection viewing angle;
a second detection component for emitting a second electromagnetic wave, the second electromagnetic wave having a second detection viewing angle; wherein,
the adjacent two sides of the first electromagnetic wave and the second electromagnetic wave are crossed or overlapped, and the detection field angle after the first detection visual angle and the second detection visual angle are overlapped is larger than or equal to 180 degrees.
In some embodiments, the first detection assembly comprises a first antenna board and a first antenna, the first antenna being disposed on the first antenna board, the first antenna being configured to emit a first electromagnetic wave, the first electromagnetic wave having the first detection viewing angle;
the second detection assembly comprises a second antenna plate and a second antenna, the second antenna is arranged on the second antenna plate and used for emitting second electromagnetic waves, and the second electromagnetic waves have the second detection visual angle.
In some embodiments, further comprising:
a power supply chip;
the first detection assembly further comprises a first radio frequency chip, the first radio frequency chip is arranged on the first antenna board, and the first radio frequency chip is electrically connected with the first antenna;
the second detection assembly further comprises a second radio frequency chip, the second radio frequency chip is arranged on the second antenna board, and the second radio frequency chip is electrically connected with the second antenna; wherein,
the power chip is arranged on the first antenna board or the second antenna board, and is electrically connected with the first radio frequency chip and the second radio frequency chip.
In some embodiments, further comprising:
a power chip and a base band plate;
the first detection assembly further comprises a first radio frequency chip, the first radio frequency chip is arranged on the baseband board, the first antenna board is connected to the baseband board, and the first radio frequency chip is electrically connected with the first antenna;
the second detection assembly further comprises a second radio frequency chip, the second radio frequency chip is arranged on the baseband board, the second antenna board is connected to the baseband board, and the second radio frequency chip is electrically connected with the second antenna; wherein,
the power chip is arranged on the baseband board, and is electrically connected with the first radio frequency chip and the second radio frequency chip.
In some embodiments, two ends of the base band plate are bent towards each other by the preset included angle around a first central axis, and form a first substrate and a second substrate, the first antenna board is disposed opposite to the first substrate, and the second antenna board is disposed opposite to the second substrate.
In some embodiments, the two ends of the base band plate are bent towards each other by the preset included angle around the second central axis, and form a first substrate and a second substrate, the first antenna board is disposed perpendicular to the first substrate, and the second antenna board is disposed perpendicular to the second substrate.
In some embodiments, further comprising:
a floating connector connecting the first antenna board and the baseband board, and connecting the second antenna board and the baseband board.
In some embodiments, further comprising:
the angle adjusting device is connected with the first antenna board and the second antenna board and used for adjusting a preset included angle between the first antenna board and the second antenna board.
In some embodiments, the first detection perspective has a value greater than or equal to 120 degrees and less than or equal to 150 degrees;
the value of the second detection viewing angle is greater than or equal to 120 degrees and less than or equal to 150 degrees;
the first detection assembly and the second detection assembly are arranged at a preset included angle, and the value of the preset included angle is larger than 60 degrees and is smaller than or equal to 120 degrees.
In some embodiments, the first detection viewing angle and the second detection viewing angle are both 130 degrees, and the preset included angle is 120 degrees.
The utility model also provides a blind area early warning system, include:
a blind area early warning radar; and the number of the first and second groups,
the device comprises an acoustic early warning device, an optical early warning device, a vibration early warning device and/or a display screen early warning device, wherein the blind area early warning radar is electrically connected with the acoustic early warning device, the optical early warning device, the vibration early warning device and/or the display screen early warning device.
Compared with the prior art, the embodiment of the utility model provides a blind area early warning radar and blind area early warning system, blind area early warning radar include first detection subassembly and second detection subassembly, and first detection subassembly is used for launching first electromagnetic wave, first electromagnetic wave has first detection visual angle, and second detection subassembly is used for launching the second electromagnetic wave, the second electromagnetic wave has the second and surveys the visual angle. The adjacent two sides of the first electromagnetic wave and the second electromagnetic wave are crossed or overlapped, and the detection angle of view after the first detection angle of view and the second detection angle of view are overlapped is larger than or equal to 180 degrees, so that the blind area early warning radar can detect the angle of view of 180 degrees, a detection blind area is eliminated, and the driving safety of an automobile is improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic diagram of a blind area early warning radar according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a conventional blind spot warning radar;
fig. 3 is a perspective view of a blind area early warning radar according to an embodiment of the present invention;
fig. 4 is a perspective view of a blind area early warning radar according to an embodiment of the present invention;
fig. 5 is a perspective view of a blind spot warning radar according to another embodiment of the present invention;
FIG. 6 is another angular perspective view of the blind spot pre-warning radar of FIG. 5;
fig. 7 is a perspective view of a blind spot warning radar according to another embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It is noted that when an element is referred to as being "secured to"/"mounted to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used herein are used in the description to indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The embodiment of the utility model provides a blind area early warning radar 100 installs in the car for the vision blind area to the car left and right sides is surveyed, helps the barrier in the accurate discernment blind area of driver, avoids the vehicle to bump with the barrier in the driving process.
Referring to fig. 1, fig. 1 is a schematic diagram of a blind spot early warning radar 100 according to an embodiment of the present invention, where the blind spot early warning radar 100 includes a first detection component 10 and a second detection component 20. The first detecting element 10 is configured to emit a first electromagnetic wave 101, the first electromagnetic wave 101 has a first detecting viewing angle, the first electromagnetic wave 101 is configured to detect an object to be detected within the first detecting viewing angle, and the first detecting viewing angle is an angle range detectable by the first electromagnetic wave 101. The second detecting element 20 is configured to emit a second electromagnetic wave 201, where the second electromagnetic wave 201 has a second detecting viewing angle, and the second electromagnetic wave 201 is configured to detect the object to be detected within the second detecting viewing angle, and the second detecting viewing angle is an angle range detectable by the second electromagnetic wave 201. The adjacent two sides of the first electromagnetic wave 101 and the second electromagnetic wave 201 are intersected or overlapped, the detection angle of view obtained after the first detection angle of view and the second detection angle of view are overlapped is greater than or equal to 180 degrees, and the detection angle of view obtained after the first detection angle of view and the second detection angle of view are the detection angle of view of the blind area early warning radar 100.
In one embodiment of the present invention, the first detecting view and the second detecting view are superimposed, i.e. the central axes of the first electromagnetic wave 101 and the second electromagnetic wave 201 are located in the same plane and do not coincide with each other, and meanwhile, when the adjacent two sides of the first electromagnetic wave 101 and the second electromagnetic wave 201 intersect or coincide with each other, the sum of the sizes of the first detecting view and the second detecting view is obtained. The object image of the target to be detected can pass through two edges of the maximum range of the electromagnetic wave emitted by the blind area early warning radar 100 to form a detection field angle of the blind area early warning radar 100. It should be understood that, in some other embodiments of the present invention, the first detection viewing angle and the second detection viewing angle are superimposed to mean the sum of the sizes of the first detection viewing angle and the second detection viewing angle when the adjacent two sides of the first electromagnetic wave 101 and the second electromagnetic wave 201 intersect or coincide.
It can be understood that the first detection viewing angle and the second detection viewing angle can be selected according to actual needs, and meanwhile, the first detection viewing angle and the second detection viewing angle can be equal to or different from each other, and it is only necessary that the detection viewing angle after the first detection viewing angle and the second detection viewing angle are overlapped is greater than or equal to 180 degrees, for example, the first detection viewing angle and the second detection viewing angle are both 140 degrees, or the first detection viewing angle is 130 degrees, and the second detection viewing angle is 140 degrees.
As shown in fig. 2, fig. 2 is a schematic view of a conventional blind area early warning device 200, and since the detection angle of the conventional blind area early warning device 200 is 150 degrees, which is smaller than 180 degrees, a detection blind area exists and installation redundancy is absent. Specifically, when the blind area early warning device 200 is installed on one of the left and right sides of the automobile, a detection blind area occurs between the detection field angle of the blind area early warning device 200 and the automobile, there is a certain potential safety hazard, and the central axis of the field angle of the blind area early warning device 200 needs to be perpendicular to the central axis of the automobile, otherwise, the detection orientation of the blind area early warning device 200 may deviate. Therefore, in the process of installing the blind area early warning device 200 in the vehicle, there is a high requirement for installation accuracy, and after the installation is completed, calibration needs to be performed in a harsh calibration environment, for example, a relatively open natural environment, a straight road, and dynamic calibration for driving.
Compared with the traditional blind area early warning device 200, the embodiment of the utility model provides a blind area early warning radar 100 is whole to detect the angle of view and is greater than or equal to 180 degrees, on one hand, make blind area early warning radar 100 install behind one side of car, can carry out the detection that the angle of view is 180 degrees to this side, eliminated the detection blind area of traditional blind area early warning device 200, improved the security that the car went; on one hand, the installation horizontal angle direction of the blind area early warning radar 100 has larger redundancy, so that the blind area early warning radar 100 can be installed within the redundancy range of +/-x degrees in the horizontal direction, the installation precision requirement is reduced under the condition that the detection field angle is met, and the installation speed is improved; on the other hand, after the installation is completed, the blind area early warning radar 100 can be calibrated in a static environment, and calibration in a harsher calibration environment is not needed.
The value of x depends on the detection angle of view of the blind area early warning radar 100, for example, when the detection angle of view of the blind area early warning radar 100 is 190 degrees, the value of x is 5, and when the detection angle of view of the blind area early warning radar 100 is 200 degrees, the value of x is 10.
Referring to fig. 1 and 3, fig. 3 is a perspective view of a blind spot early warning radar 100 according to an embodiment of the present invention, in which the first detecting element 10 includes a first antenna plate 11 and a first antenna 12, the first antenna 12 is disposed on the first antenna plate 11, the first antenna 12 is used for emitting the first electromagnetic wave 101, the first electromagnetic wave 101 has a first detecting angle, a central axis of the first electromagnetic wave 101 is perpendicular to the first antenna plate 11, and the first detecting angle is an angle formed by two edges of the first electromagnetic wave 101 in a maximum range, through which an object image of a target can pass. The first electromagnetic wave 101 is a millimeter wave of a cone-shaped wave beam, the wavelength is 1-10 mm, and the first electromagnetic wave 101 can perform obstacle existence, distance measurement, speed measurement and/or azimuth measurement on a target to be detected within a first detection visual angle range.
The first antenna 12 includes a plurality of first microstrip patch antennas 121, and the plurality of first microstrip patch antennas 121 are disposed in parallel on one side of the first antenna board 11. The distance between two adjacent first microstrip patch antennas 121 determines the size of the first detection angle of view, and the larger the distance, the larger the first detection angle of view.
The second detecting assembly 20 includes a second antenna plate 21 and a second antenna 22, the second antenna 22 is disposed on the second antenna plate 21, the second antenna 22 is used for emitting the second electromagnetic wave 201, the second electromagnetic wave 201 has the second detecting viewing angle, the central axis of the second electromagnetic wave 201 is perpendicular to the second antenna plate 21, and the second detecting viewing angle is the starting position of the emitting position of the second antenna 22, so that the object image of the detected object can pass through an included angle formed by two edges of the maximum range of the second electromagnetic wave 201. The second electromagnetic wave 201 is a millimeter wave of a cone-shaped wave beam, the wavelength is 1-10 mm, and the second electromagnetic wave 201 can perform obstacle existence, distance measurement, speed measurement and/or azimuth measurement on the target to be detected within the second detection visual angle range.
The second antenna 22 includes a plurality of second microstrip patch antennas 221, and the plurality of second microstrip patch antennas 221 are disposed in parallel on one side of the second antenna board 21. The distance between two adjacent second microstrip patch antennas 221 determines the size of the second detection field angle, and the larger the distance is, the larger the second detection field angle is.
In some other embodiments, the first electromagnetic wave 101 and the second electromagnetic wave 201 may also be emitted through other structures, for example, two lasers respectively emit a first laser beam and a second laser beam, which are the first electromagnetic wave 101 and the second electromagnetic wave 201.
In some other embodiments, the first detection assembly 10 and the second detection assembly 20 may also detect the object to be detected at the first detection viewing angle and the second detection viewing angle respectively through other forms, such as ultrasonic waves, etc.
Referring back to fig. 1, fig. 1 shows a case where two adjacent sides of a first electromagnetic wave 101 and a second electromagnetic wave 201 intersect. It should be understood that in some other embodiments, the size of the included angle between the central axes of the first electromagnetic wave 101 and the second electromagnetic wave 201, and the distance between the starting positions of the first electromagnetic wave 101 and the second electromagnetic wave 201 can be adjusted by setting, respectively, so that the adjacent two sides of the first electromagnetic wave 101 and the second electromagnetic wave 201 coincide.
The embodiment of the utility model provides an in, first antenna board 11 and second antenna board 21 symmetry set up, and first antenna board 11 and second antenna board 21 are the setting of predetermineeing the contained angle, and the adjacent both sides of first electromagnetic wave 101 and second electromagnetic wave 201 are crossing, and the first detection visual angle and the second detection visual angle of surveying after surveying the visual angle stack be greater than or equal to 180 degrees. An overlapping portion a and a staggered portion B are formed at the intersection of the first electromagnetic wave 101 and the second electromagnetic wave 201, the overlapping portion a is a common detection region of the first electromagnetic wave 101 and the second electromagnetic wave 201, and the staggered portion B is a detection blind region of the first electromagnetic wave 101 and the second electromagnetic wave 201.
It should be noted that, in practical applications, the detection blind area of the staggered portion B is relatively close to the vehicle body, and the detection blind area of the staggered portion B is located between the first electromagnetic wave 101 and the second electromagnetic wave 201, so that the area is relatively small, during the driving process of the vehicle, the first electromagnetic wave 101 and the second electromagnetic wave 201 can detect the 180-degree field angle of view of one side of the vehicle body, generally, an obstacle does not suddenly appear in the detection blind area of the staggered portion B, and when an obstacle appears on the side of the vehicle where the blind area early warning radar 100 is installed, the obstacle is detected by the first electromagnetic wave 101 and the second electromagnetic wave 201, and therefore, the detection blind area of the staggered portion B is an unnecessary detection area.
In an embodiment of the present invention, the value of the first detection viewing angle is greater than or equal to 120 degrees and less than or equal to 150 degrees; the value of the second detection viewing angle is greater than or equal to 120 degrees and less than or equal to 150 degrees; the first detection assembly 10 and the second detection assembly 20 are arranged at a preset included angle, and the value of the preset included angle is greater than 60 degrees and less than or equal to 120 degrees. The larger the first detection visual angle, the second detection visual angle and/or the preset included angle is, the smaller the detection blind area of the staggered part B is. It should be noted that the larger the first detection angle and the second detection angle are, the greater the difficulty in developing the blind area early warning radar 100 is on the premise that the detection accuracy of the first detection assembly 10 and the second detection assembly 20 needs to be ensured.
Further, the values of the first detection perspective and the second detection perspective are both greater than 120 degrees. Through the arrangement, the blind area early warning radar 100 can detect that the field angle is larger than 180 degrees, the installation redundancy of the blind area early warning radar 100 is guaranteed, the blind area early warning radar 100 can be installed in a certain angle range in the horizontal direction, the installation accuracy requirement of the blind area early warning radar 100 is lowered under the condition that the detection field angle is met, and the installation speed is increased. The actual angle range to be detected on one side of the vehicle body is 180 degrees, so that the part of the blind area early warning radar 100 exceeding 180 degrees is directly projected to the vehicle body, and after the installation is finished, the static environment calibration can be carried out through an algorithm.
Further, as shown in fig. 1, the first detection viewing angle and the second detection viewing angle are both 130 degrees, and the predetermined included angle is 120 degrees. Through the arrangement, the detection precision of the first detection assembly 10 and the second detection assembly 20 is guaranteed, a balance point is obtained in the detection precision and the development difficulty, and the detection blind area of the staggered part B is reduced. Wherein, the initial position of first electromagnetic wave 101 and second electromagnetic wave 201 outgoing is located same water flat line, and the first detection visual angle of view and the detection visual angle after the second detection visual angle stack equal 190 degrees, and wherein, blind area early warning radar 100's effective detection market angle is 180 degrees, surpasss 180 degrees parts and is blind area early warning radar 100's installation redundancy, and blind area early warning radar 100 can install in the redundancy within range of horizontal direction 5 degrees.
Please refer to fig. 3 and fig. 4, fig. 4 is a perspective view of a blind area early warning radar 100 according to an embodiment of the present invention, in an embodiment of the present invention, the blind area early warning radar 100 further includes a power chip 30, the first detecting component 10 further includes a first rf chip 13, the first rf chip 13 is disposed on the first antenna board 11, and the first rf chip 13 is electrically connected to the first antenna 12, the second detecting component 20 further includes a second rf chip 23, the second rf chip 23 is disposed on the second antenna board 21, and the second rf chip 23 is electrically connected to the second antenna 22. The power chip 30 is disposed on the first antenna board 11 or the second antenna board 21, the power chip 30 is electrically connected to the first rf chip 13 and the second rf chip 23, the first rf chip 13 is electrically connected to the second rf chip 23, the power chip 30 is configured to supply power to the first rf chip 13 and the second rf chip 23, the first rf chip 13 is configured to convert radio signal communication into a certain radio signal waveform and transmit the radio signal waveform through the first antenna 12, and the second rf chip 23 is configured to convert radio signal communication into a certain radio signal waveform and transmit the radio signal waveform through the second antenna 22.
In a specific implementation process, the first antenna board 11 and the second antenna board 21 may be connected through a BTB (board to board connector) Interface, or a FPC (Flexible Printed Circuit board) Interface, so as to implement SPI (Serial Peripheral Interface) and UART (Universal Asynchronous Receiver/Transmitter) communication between the first antenna board 11 and the second antenna board 21, and the first antenna board 11 and the second antenna board 21 adopt a master-slave mode, and output a detection signal through a CAN or CAN FD Interface.
Referring to fig. 5 and 6, fig. 5 is a perspective view of a blind spot early warning radar 100 according to another embodiment of the present invention, fig. 6 is a perspective view of another angle of the blind spot early warning radar 100 of fig. 5, the blind spot early warning radar 100 further includes a power chip 30 and a baseband board 40a, the first detection component 10 further includes a first rf chip 13, the first rf chip 13 is disposed on the baseband board 40a, the first antenna board 11 is connected to the baseband board 40a, the first rf chip 13 is electrically connected to the first antenna 12, the second detection component 20 further includes a second rf chip 23, the second rf chip 23 is disposed on the baseband board 40a, the second antenna board 21 is connected to the baseband board 40a, and the second rf chip 23 is electrically connected to the second antenna 22. The power chip 30 is disposed on the baseband board 40a, the power chip 30 is electrically connected to the first rf chip 13 and the second rf chip 23, the first rf chip 13 is electrically connected to the second rf chip 23, the power chip 30 is configured to supply power to the first rf chip 13 and the second rf chip 23, the first rf chip 13 is configured to convert radio signal communication into a certain radio signal waveform and transmit the radio signal waveform through the first antenna 12, and the second rf chip 23 is configured to convert radio signal communication into a certain radio signal waveform and transmit the radio signal waveform through the second antenna 22.
Referring to fig. 6, the two ends of the base band plate 40a are bent toward each other around the first central axis S1 by the predetermined angle to form a first substrate 41a and a second substrate 42a, the first antenna board 11 is disposed opposite to the first substrate 41a, the second antenna board 21 is disposed opposite to the second substrate 42a, and the first antenna board 11 and the second antenna board 21 are disposed at the predetermined angle.
Referring to fig. 7, fig. 7 is a perspective view of a blind spot warning radar 100 according to another embodiment of the present invention, two ends of a base band plate 40b are bent toward each other around a second central axis S2 to form a first substrate 41b and a second substrate 42b, the first antenna board 11 is disposed perpendicular to the first substrate 41b, the second antenna board 21 is disposed perpendicular to the second substrate 42b, and the first antenna board 11 and the second antenna board 21 are disposed at a predetermined included angle.
Further, the blind zone warning radar 100 further includes a floating connector 50, the floating connector 50 connecting the first antenna board 11 and the base band boards (40a, 40b), and connecting the second antenna board 21 and the base band boards (40a, 40 b). Specifically, one floating connector 50 connects the first antenna board 11 and the first base band board (41a, 41b), and one floating connector 50 connects the second antenna board 21 and the second base band board (42a, 42 b).
In a specific implementation process, the first antenna board 11 and the second antenna board 21 are connected to the first baseband board (41a, 41b) and the second baseband board (42a, 42b) through two floating connectors 50, respectively, so as to implement SPI (Serial Peripheral Interface) and UART (Universal Asynchronous Receiver Transmitter) communication between the first antenna board 11 and the second antenna board 21, and the first antenna board 11 and the second antenna board 21 adopt a master-slave mode, and output detection signals through a CAN or CAN FD Interface.
The utility model discloses in some embodiments, blind area early warning radar 100 still includes angle adjusting device, and angle adjusting device connects first antenna board 11 and second antenna board 21, and angle adjusting device is used for adjusting the predetermined contained angle size between first antenna board 11 and the second antenna board 21.
Specifically, the angle adjusting device comprises an elastic device, a memory alloy and a driving device, two ends of the elastic device are respectively connected with the first antenna board 11 and the second antenna board 21, the elastic device is elastically compressed between the first antenna board 11 and the second antenna board 21, two ends of the memory alloy are respectively connected with the first antenna board 11 and the second antenna board 21, the driving device is connected with the memory alloy, the elastic device is used for providing elastic force so that the first antenna board 11 and the second antenna board 21 can rotate towards directions far away from each other, the memory alloy is used for being electrified and contracted so as to drive the first antenna board 11 and the second antenna board 21 to rotate towards directions close to each other, and therefore the size of a preset included angle between the first antenna board 11 and the second antenna board 21 is changed, and the driving device is used for supplying power to the memory alloy. Wherein, resilient means and memory alloy all are located the same side of first antenna board 11 and second antenna board 21, and resilient means can be pressure spring, shell fragment, or torsional spring etc..
In some other embodiments, the angle adjusting device includes a first motor and a second motor, the first motor and the second motor are respectively connected to the first antenna board 11 and the second antenna board 21, one ends of the first antenna board 11 and the second antenna board 21 away from each other, or one ends of the first antenna board 11 and the second antenna board 21 close to each other are provided with gear parts, and the first motor and the second motor are respectively connected to the gear parts of the first antenna board 11 and the second antenna board 21 to respectively drive the first antenna board 11 and the second antenna board 21 to rotate, so as to change the preset included angle between the first antenna board 11 and the second antenna board 21.
The embodiment of the utility model provides a blind area early warning system is still provided, blind area early warning system includes sound early warning ware, light early warning ware, vibration early warning ware and/or display screen early warning ware, and as above blind area early warning radar. The blind area early warning radar 100 is electrically connected with an acoustic early warning device, an optical early warning device, a vibration early warning device and/or a display screen early warning device, the blind area early warning radar 100 is used for carrying out obstacle existence, distance measurement, speed measurement and/or direction measurement on a target to be measured, the acoustic early warning device is used for giving out a warning sound when the blind area early warning radar 100 detects that the distance between the obstacle target and a vehicle body is less than a preset value, the optical early warning device is used for giving out a flashing warning lamp when the blind area early warning radar 100 detects that the distance between the obstacle target and the vehicle body is less than the preset value, the vibration early warning device is used for generating vibration when the blind area early warning radar 100 detects that the distance between the obstacle target and the vehicle body is less than the preset value, the display screen early warning device is used for displaying a warning interface when the blind area early warning radar 100 detects that the distance between the obstacle target and the vehicle body is less than the preset value, wherein, in order to ensure that a driver can quickly perceive the occurrence of the obstacle target, the vibration early warning device is arranged on a steering wheel of an automobile. For the rest of the structure, please refer to the prior art, which is not described herein.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (11)
1. A blind area early warning radar, comprising:
a first detection component for emitting a first electromagnetic wave, the first electromagnetic wave having a first detection viewing angle;
a second detection component for emitting a second electromagnetic wave, the second electromagnetic wave having a second detection viewing angle; wherein,
the adjacent two sides of the first electromagnetic wave and the second electromagnetic wave are crossed or overlapped, and the detection field angle after the first detection visual angle and the second detection visual angle are overlapped is larger than or equal to 180 degrees.
2. The blind zone warning radar according to claim 1, wherein the first detection component includes a first antenna board and a first antenna, the first antenna being disposed on the first antenna board, the first antenna being configured to emit a first electromagnetic wave, the first electromagnetic wave having the first detection viewing angle;
the second detection assembly comprises a second antenna plate and a second antenna, the second antenna is arranged on the second antenna plate and used for emitting second electromagnetic waves, and the second electromagnetic waves have the second detection visual angle.
3. The blind spot warning radar according to claim 2, further comprising:
a power supply chip;
the first detection assembly further comprises a first radio frequency chip, the first radio frequency chip is arranged on the first antenna board, and the first radio frequency chip is electrically connected with the first antenna;
the second detection assembly further comprises a second radio frequency chip, the second radio frequency chip is arranged on the second antenna board, and the second radio frequency chip is electrically connected with the second antenna; wherein,
the power chip is arranged on the first antenna board or the second antenna board, and is electrically connected with the first radio frequency chip and the second radio frequency chip.
4. The blind spot warning radar according to claim 2, further comprising:
a power chip and a base band plate;
the first detection assembly further comprises a first radio frequency chip, the first radio frequency chip is arranged on the baseband board, the first antenna board is connected to the baseband board, and the first radio frequency chip is electrically connected with the first antenna;
the second detection assembly further comprises a second radio frequency chip, the second radio frequency chip is arranged on the baseband board, the second antenna board is connected to the baseband board, and the second radio frequency chip is electrically connected with the second antenna; wherein,
the power chip is arranged on the baseband board, and is electrically connected with the first radio frequency chip and the second radio frequency chip.
5. The blind area warning radar of claim 4, wherein both ends of the base band plate are bent toward each other about a first central axis by a predetermined included angle and form a first base plate and a second base plate, the first antenna plate being disposed opposite to the first base plate, and the second antenna plate being disposed opposite to the second base plate.
6. The blind area warning radar according to claim 4, wherein both ends of the base band plate are bent toward each other about a second central axis by a predetermined included angle and form a first base plate and a second base plate, the first antenna plate being disposed perpendicular to the first base plate, and the second antenna plate being disposed perpendicular to the second base plate.
7. The blind spot warning radar of claim 4, further comprising:
a floating connector connecting the first antenna board and the baseband board, and connecting the second antenna board and the baseband board.
8. The blind spot warning radar according to any one of claims 2 to 7, further comprising:
the angle adjusting device is connected with the first antenna board and the second antenna board and used for adjusting a preset included angle between the first antenna board and the second antenna board.
9. The blind spot warning radar according to any one of claims 1 to 7, wherein the value of the first detection view angle is greater than or equal to 120 degrees and less than or equal to 150 degrees;
the value of the second detection viewing angle is greater than or equal to 120 degrees and less than or equal to 150 degrees;
the first detection assembly and the second detection assembly are arranged at a preset included angle, and the value of the preset included angle is larger than 60 degrees and is smaller than or equal to 120 degrees.
10. The blind spot warning radar according to claim 9,
the first detection visual angle and the second detection visual angle are both 130 degrees, and the preset included angle is 120 degrees.
11. A blind zone early warning system, comprising:
the blind spot warning radar of any one of claims 1-10; and the number of the first and second groups,
the device comprises an acoustic early warning device, an optical early warning device, a vibration early warning device and/or a display screen early warning device, wherein the blind area early warning radar is electrically connected with the acoustic early warning device, the optical early warning device, the vibration early warning device and/or the display screen early warning device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112213726A (en) * | 2020-10-22 | 2021-01-12 | 深圳市道通科技股份有限公司 | Blind area early warning radar and blind area early warning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213726A (en) * | 2020-10-22 | 2021-01-12 | 深圳市道通科技股份有限公司 | Blind area early warning radar and blind area early warning system |
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