CN211505865U - Unmanned aerial vehicle multi-target height-finding millimeter wave radar - Google Patents
Unmanned aerial vehicle multi-target height-finding millimeter wave radar Download PDFInfo
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- CN211505865U CN211505865U CN201921944585.7U CN201921944585U CN211505865U CN 211505865 U CN211505865 U CN 211505865U CN 201921944585 U CN201921944585 U CN 201921944585U CN 211505865 U CN211505865 U CN 211505865U
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Abstract
The utility model discloses an unmanned aerial vehicle multi-target height finding millimeter wave radar, this unmanned aerial vehicle multi-target height finding millimeter wave radar includes millimeter wave radar circuit board and the power supply interface board of being connected with millimeter wave radar circuit board electricity through the connector, be equipped with the antenna on the millimeter wave radar circuit board and with the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor of being connected of antenna electricity, millimeter wave radar circuit board is used for through the antenna transmission millimeter wave, and receive the signal that the barrier reflected back, measure relative velocity, distance and the angle with the target; and the power supply interface board is used for supplying power to the millimeter wave radar circuit board. The utility model provides an unmanned aerial vehicle multi-target height finding millimeter wave radar, which adopts a double-layer plate structure, and has convenient assembly and small volume; the heat dissipation is fast, and the performance satisfies the test demand.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a radar detects technical field, especially relates to an unmanned aerial vehicle multiple target height finding millimeter wave radar.
[ background of the invention ]
In the unmanned aerial vehicle trade, in order to ensure that the unmanned aerial vehicle can fly steadily at specific height, the altimetry sensor becomes the standard goods, and barometer height measurement, ultrasonic wave + light stream height measurement, laser height measurement and unmanned aerial vehicle multi-target height measurement millimeter wave radar range finding have appeared in succession, but, the barometer height error is great. The height is measured by ultrasonic wave and light stream, the height measuring distance is (0.1-10m), and the ground is required to have rich texture. The ultrasonic height measurement distance (0.1-3m) is easy to penetrate through vegetation, and the real-time performance is poor. The laser height measurement has the disadvantages of poor laser reflection effect of vegetation, large error and high cost. Unmanned aerial vehicle multi-target height measurement millimeter wave radar ranging height 0.1-
200m, high precision, all weather, strong environmental adaptability, multi-target monitoring and controllable cost. Along with unmanned aerial vehicle is more and more extensive in each trade application, the height measurement sensor is by the wide application equally, however in the unmanned aerial vehicle multi-target height measurement millimeter wave radar scheme in the existing market, unmanned aerial vehicle multi-target height measurement millimeter wave radar circuit adopts integrated DSP (Digital signal processing, Digital signal processor)'s single-chip unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor and power supply circuit and single-chip unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor are integrated on a PCB (Printed circuit board), thereby lead to single-chip unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor among the unmanned aerial vehicle multi-target height measurement millimeter wave radar circuit high temperature and cause the condition of radar performance disorder to appear.
Therefore, in the design of the existing printed circuit board, the power supply circuit and the single-chip unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor in the unmanned aerial vehicle multi-target height measurement millimeter wave radar circuit are integrated on one PCB, so that the technical problem to be solved urgently is solved.
[ Utility model ] content
An object of the utility model is to provide an unmanned aerial vehicle multiple target height finding millimeter wave radar aims at solving the single-chip unmanned aerial vehicle multiple target height finding millimeter wave radar sensor integration on a PCB board in the current printed circuit board design among supply circuit and the unmanned aerial vehicle multiple target height finding millimeter wave radar circuit.
The technical scheme of the utility model as follows:
according to an aspect of the utility model, an unmanned aerial vehicle multi-target height finding millimeter wave radar is provided, including millimeter wave radar circuit board and the power supply interface board of being connected with millimeter wave radar circuit board electricity through the connector, be equipped with the antenna on the millimeter wave radar circuit board and the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor of being connected with the antenna electricity, the integrated digital signal processor that has on the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor, millimeter wave radar circuit board is used for through the antenna transmission millimeter wave, and receive the signal that the barrier reflected back, measure relative speed, distance and the angle with the target; and the power supply interface board is used for supplying power to the millimeter wave radar circuit board.
Furthermore, the connector comprises a pin seat arranged on the power supply interface board and a pin arranged on the millimeter wave radar circuit board and used for being matched with the pin seat.
Furthermore, the pin base comprises a first pin base and a second pin base which are arranged on the power supply interface board, the pins comprise a first pin and a second pin which are arranged on the millimeter wave radar circuit board, the first pin is matched with the first pin base, and the second pin is matched with the second pin base.
Further, unmanned aerial vehicle multi-target height finding millimeter wave radar still includes the supporting seat, and the supporting seat is located between millimeter wave radar circuit board and the power supply interface board.
Furthermore, the heights of the pin seat and the supporting seat between the millimeter wave radar circuit board and the power supply interface board are equal.
Furthermore, the antenna adopts an onboard microstrip array antenna, the antenna comprises two transmitting antennas and four receiving antennas, and the transmitting antennas adopt double-row antennas.
Furthermore, the millimeter wave radar circuit board also comprises a Flash memory connected with the unmanned aerial vehicle multi-target height-finding millimeter wave radar sensor.
Further, the power supply interface board comprises a direct current converter and a power management integrated circuit,
a DC converter for converting a DC voltage;
the power management integrated circuit is respectively electrically connected with the direct current converter and the millimeter wave radar circuit board and is used for converting direct current voltage converted by the direct current converter into multi-path working voltage and outputting the multi-path working voltage to the millimeter wave radar circuit board.
Further, the power supply interface board also comprises a CAN circuit,
the CAN circuit is respectively and electrically connected with the direct current converter and the millimeter wave radar circuit board and is used for carrying out data connection with the millimeter wave radar circuit board under the working voltage provided by the CAN circuit.
Further, unmanned aerial vehicle multi-target altimetry millimeter wave radar sensor is IWR1642 chip.
The utility model discloses the technological effect who gains as follows:
the utility model provides an unmanned aerial vehicle multi-target height finding millimeter wave radar links together millimeter wave radar circuit board and power supply interface board through the connector to prevented because the too high virtual target that produces the fixing of power supply temperature and because the too high appearance that causes the radar performance disorder phenomenon of millimeter wave radar circuit board temperature. The utility model provides an unmanned aerial vehicle multi-target height finding millimeter wave radar, which adopts a double-layer plate structure, and has convenient assembly and small volume; the heat dissipation is fast, and the performance satisfies the test demand.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an embodiment of the multi-target height-finding millimeter wave radar for the unmanned aerial vehicle provided by the utility model;
FIG. 2 is a schematic structural diagram of an embodiment of the power interface board in FIG. 1;
FIG. 3 is a schematic structural diagram of an embodiment of the millimeter wave radar circuit board of FIG. 1;
fig. 4 is a functional block diagram of an embodiment of the multi-target height finding millimeter wave radar of the unmanned aerial vehicle provided by the utility model;
fig. 5 is the utility model provides a circuit module block diagram of an unmanned aerial vehicle multi-target height finding millimeter wave radar embodiment.
The reference numbers illustrate:
10. a millimeter wave radar circuit board; 20. a power supply interface board; 30. a connector assembly; 11. an antenna; 12. an unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor; 31. a needle inserting seat; 32. inserting a pin; 311. a first pin holder; 312. a second pin holder; 321. a first pin; 322. a second pin; 40. a supporting seat; 13. a Flash memory; 21. a DC converter; 22. a power management integrated circuit; 23. a CAN circuit.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is the utility model provides an unmanned aerial vehicle multiple target height finding millimeter wave radar embodiment's structural schematic. The unmanned aerial vehicle multi-target height finding millimeter wave radar comprises a millimeter wave radar circuit board 10 and a power supply interface board 20 electrically connected with the millimeter wave radar circuit board 10 through a connector 30, wherein an antenna 11 and an unmanned aerial vehicle multi-target height finding millimeter wave radar sensor 12 electrically connected with the antenna 11 are arranged on the millimeter wave radar circuit board 10, and the millimeter wave radar circuit board 10 is used for emitting millimeter waves through the antenna and receiving signals reflected by obstacles so as to measure the relative speed, distance and angle with a target; the power supply interface board 20 is used for supplying power to the millimeter wave radar circuit board 10.
In the above structure, as an embodiment, referring to fig. 4 and 5, the power supply interface board 20 includes a dc converter 21 and a power management integrated circuit 22, where the dc converter 21 is used for converting a dc voltage; the power management integrated circuit 22 is electrically connected to the dc converter 21 and the millimeter wave radar circuit board 10, and is configured to convert the dc voltage converted by the dc converter 21 into multiple working voltages and output the multiple working voltages to the millimeter wave radar circuit board 10. The power supply interface board 20 further comprises a CAN circuit 23, and the CAN circuit 23 is electrically connected to the dc converter 21 and the millimeter wave radar circuit board 10 respectively, and is used for performing data connection between the CAN circuit 23 and the millimeter wave radar circuit board 10 under the working voltage provided by the dc converter 21. In this embodiment, the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor 12 adopts an IWR1642 chip. The dc converter 21 uses the LM7805 chip U1. The power management integrated circuit 22 includes a first buck converter LM53635 chip U2, a second buck converter LP87702 chip U3, and a third buck converter TPS7a53 chip U4 connected in sequence. The LM7805 chip U1 converts a 12V supply voltage into a 5V dc voltage and outputs the voltage. The LM53635 chip U2 is used for converting the 5V DC voltage into a 3.3V DC voltage for output. The LP87702 chip U3 is used for converting the 3.3V direct-current voltage into two paths of voltages for output, wherein one path of voltage is converted into 1.8V direct-current voltage and then is supplied to the IWR1642 chip; the other path is converted into 1.24V direct current voltage, and then the direct current voltage is divided by a TPS7A53 chip U4 to obtain 1.0V direct current voltage and 1.2V direct current voltage, and then the direct current voltage is supplied to an IWR1642 chip.
The unmanned aerial vehicle multi-target height finding millimeter wave radar that this embodiment provided, compared with the prior art, link together millimeter wave radar circuit board and power supply interface board through the connector, thereby realized unmanned aerial vehicle multi-target height finding millimeter wave radar sensor and supply circuit's separation, the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor high temperature in having prevented to produce fixed virtual target and having caused unmanned aerial vehicle multi-target height finding millimeter wave radar circuit because supply circuit high temperature, and then prevented to cause the appearance of radar performance disorder phenomenon because millimeter wave radar circuit board high temperature. In addition, the multi-target height finding millimeter wave radar of the unmanned aerial vehicle provided by the embodiment adopts a double-layer plate structure, and is convenient to assemble and small in size; the heat dissipation is fast, and the performance satisfies the test demand.
Preferably, please refer to fig. 1 to 3, fig. 2 is a schematic structural diagram of an embodiment of the power supply interface board in fig. 1, and fig. 3 is a schematic structural diagram of an embodiment of the millimeter wave radar circuit board in fig. 1. In the multi-target height finding millimeter wave radar for the unmanned aerial vehicle provided by the embodiment, the connector 30 includes a pin socket 31 disposed on the power supply interface board 20 and a pin 32 disposed on the millimeter wave radar circuit board 10 and adapted to the pin socket 31. Specifically, the pin socket 31 includes a first pin socket 311 and a second pin socket 312 which are arranged on the power supply interface board 20, the pin 32 includes a first pin 321 and a second pin 322 which are arranged on the millimeter wave radar circuit board 10, the first pin 321 is matched with the first pin socket 311, and the second pin 322 is matched with the second pin socket 312.
With the above structure provided by this embodiment, the two layers of boards can be overlapped by the mutual matching of the pin base 31 and the pin 32 respectively provided on the power supply interface board 20 and the millimeter wave radar circuit board 10, so as to reduce the volume and facilitate the insertion during the assembly.
Further, unmanned aerial vehicle multi-target height finding millimeter wave radar still includes supporting seat 40, and supporting seat 40 is located between millimeter wave radar circuit board 10 and power supply interface board 20.
In the structure, the millimeter wave radar circuit board 10 and the power supply interface board 20 are supported and fixed by the support base 40, so that quick heat dissipation can be realized in the use process, the performance meets the test requirement, and the phenomenon of radar performance disorder caused by overhigh temperature of the millimeter wave radar circuit board is avoided.
Optionally, referring to fig. 1 to fig. 3, in the multi-target height measurement millimeter wave radar of the unmanned aerial vehicle provided in this embodiment, the heights of the plug pin seat 31 and the supporting seat 40 located between the millimeter wave radar circuit board 10 and the power supply interface board 20 are equal. In this embodiment, the millimeter wave radar circuit board 10 and the power supply interface board 20 are supported and fixed by the supporting seat 40 having the same height as the plug pin seat 31, so that the millimeter wave radar circuit board 10 and the power supply interface board 20 are stably connected, and the reliability of the connection between the millimeter wave radar circuit board 10 and the power supply interface board is improved.
Further, as shown in fig. 1 to fig. 3, in the multi-target height finding millimeter wave radar of the unmanned aerial vehicle provided by this embodiment, the antenna 11 adopts an onboard microstrip array antenna, the antenna 11 includes two transmitting antennas RF TX and four receiving antennas RF RX, and the transmitting antennas RF TX adopts a double-row antenna. Such purpose is with the radar visual angle diminish, because the energy of radar transmission is provided by the chip, and the energy of chip is the fixed value, so when the visual angle is less, the energy in the visual angle scope improves, and the radar is better to the detection effect of weak target this moment, and such design is mainly when solving radar detection vegetation, and the precision can improve relatively when stronger energy echo is to the height of detecting vegetation.
Preferably, referring to fig. 1 to 5, in the unmanned aerial vehicle multi-target height finding millimeter wave radar provided in this embodiment, the millimeter wave radar circuit board 10 further includes a Flash memory 13 connected to the unmanned aerial vehicle multi-target height finding millimeter wave radar sensor 12. In the present example, the detected nearest obstacle and farthest obstacle information are stored by the Flash memory 13, and the measured height information of the vegetation is saved for later inquiry and tracing.
The unmanned aerial vehicle multi-target height finding millimeter wave radar that adopts this embodiment to provide can carry out unmanned aerial vehicle multi-target height finding.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. The unmanned aerial vehicle multi-target height finding millimeter wave radar is characterized by comprising a millimeter wave radar circuit board (10) and a power supply interface board (20) electrically connected with the millimeter wave radar circuit board (10) through a connector (30), wherein an antenna (11) and an unmanned aerial vehicle multi-target height finding millimeter wave radar sensor (12) electrically connected with the antenna (11) are arranged on the millimeter wave radar circuit board (10), and the millimeter wave radar circuit board (10) is used for transmitting millimeter waves through the antenna and receiving signals reflected by obstacles to measure the relative speed, distance and angle between the unmanned aerial vehicle multi-target height finding millimeter wave radar and the target; the power supply interface board (20) is used for supplying power to the millimeter wave radar circuit board (10).
2. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 1,
the connector (30) comprises a plug pin seat (31) arranged on the power supply interface board (20) and a plug pin (32) arranged on the millimeter wave radar circuit board (10) and used for being matched with the plug pin seat (31).
3. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 2,
the plug pin seat (31) comprises a first plug pin seat (311) and a second plug pin seat (312) which are arranged on the power supply interface board (20), the plug pin (32) comprises a first plug pin (321) and a second plug pin (322) which are arranged on the millimeter wave radar circuit board (10), the first plug pin (321) is matched with the first plug pin seat (311), and the second plug pin (322) is matched with the second plug pin seat (312).
4. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 2,
the unmanned aerial vehicle multi-target height finding millimeter wave radar further comprises a supporting seat (40), wherein the supporting seat (40) is located between the millimeter wave radar circuit board (10) and the power supply interface board (20).
5. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 4,
the heights of the plug pin seat (31) and the supporting seat (40) between the millimeter wave radar circuit board (10) and the power supply interface board (20) are equal.
6. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 1,
the antenna (11) adopts an onboard microstrip array antenna, the antenna (11) comprises two transmitting antennas and four receiving antennas, and the transmitting antennas adopt double-row antennas.
7. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 1,
the millimeter wave radar circuit board (10) further comprises a Flash memory (13) connected with the unmanned aerial vehicle multi-target height-finding millimeter wave radar sensor (12).
8. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 1,
the power supply interface board (20) comprises a direct current converter (21) and a power management integrated circuit (22),
the direct current converter (21) is used for converting direct current voltage;
the power management integrated circuit (22) is respectively electrically connected with the direct current converter (21) and the millimeter wave radar circuit board (10) and is used for converting direct current voltage converted by the direct current converter (21) into multi-path working voltage and outputting the multi-path working voltage to the millimeter wave radar circuit board (10).
9. The unmanned aerial vehicle multi-target height finding millimeter wave radar of claim 8,
the power supply interface board (20) further comprises a CAN circuit (23),
CAN circuit (23) respectively with direct current converter (21) with unmanned aerial vehicle multi-target height finding millimeter wave radar sensor (12) electricity is connected, be used for under the operating voltage that CAN circuit (23) provided, with unmanned aerial vehicle multi-target height finding millimeter wave radar sensor (12) carry out data connection.
10. An unmanned aerial vehicle multi-target height finding millimeter wave radar according to any one of claims 1 to 9,
the unmanned aerial vehicle multi-target height measurement millimeter wave radar sensor (12) is an IWR1642 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944585.7U CN211505865U (en) | 2019-11-12 | 2019-11-12 | Unmanned aerial vehicle multi-target height-finding millimeter wave radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921944585.7U CN211505865U (en) | 2019-11-12 | 2019-11-12 | Unmanned aerial vehicle multi-target height-finding millimeter wave radar |
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| Publication Number | Publication Date |
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| CN211505865U true CN211505865U (en) | 2020-09-15 |
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| CN201921944585.7U Active CN211505865U (en) | 2019-11-12 | 2019-11-12 | Unmanned aerial vehicle multi-target height-finding millimeter wave radar |
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- 2019-11-12 CN CN201921944585.7U patent/CN211505865U/en active Active
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