阅读说明：本技术 一种雷达功率控制方法及装置 (Radar power control method and device ) 是由 罗鹏飞 姜彤 于 2019-03-28 设计创作，主要内容包括：一种雷达功率控制方法及装置,方法包括：向目标发射角发射第一探测信号；若第一探测信号的回波信号的信号功率小于预设的功率阈值,则获取第一探测信号的第一探测点的反射率,其中,第一探测点为目标发射角方向的被测物体表面的点；若第一探测点的反射率大于预设的第一阈值,则增大目标发射角对应的发射功率。采用上述方案有利于兼顾雷达功耗和探测距离。(A radar power control method and device are provided, and the method comprises the following steps: transmitting a first detection signal to a target emission angle; if the signal power of the echo signal of the first detection signal is smaller than a preset power threshold, acquiring the reflectivity of a first detection point of the first detection signal, wherein the first detection point is a point on the surface of the measured object in the target emission angle direction; and if the reflectivity of the first detection point is greater than a preset first threshold value, increasing the emission power corresponding to the target emission angle. By adopting the scheme, the power consumption and the detection distance of the radar can be considered.)

A radar power control method, comprising:

transmitting a first detection signal to a target emission angle;

if the signal power of the echo signal of the first detection signal is smaller than a preset power threshold, acquiring the reflectivity of a first detection point of the first detection signal, wherein the first detection point is a point on the surface of the measured object in the target emission angle direction;

and if the reflectivity of the first detection point is greater than a preset first threshold value, increasing the emission power corresponding to the target emission angle.

The method of claim 1, wherein prior to obtaining the reflectivity of the first detection point of the first detection signal, further comprising:

acquiring an echo-free area in a scanned image, wherein the scanned image is obtained according to echo signals of detection signals transmitted to a plurality of transmitting angles, and the echo-free area is an area corresponding to a plurality of echo signals which are continuous in space and have signal power smaller than the power threshold and are larger than a preset number;

and determining that the area of a target echo-free area comprising the first detection point is not larger than a second threshold value, and/or determining that a solid angle corresponding to the target echo-free area is not larger than a third threshold value.

The method of claim 2, wherein after acquiring the echo-free region in the scan image, further comprising:

if the area of the target echo-free region is larger than the second threshold value and the solid angle of the target echo-free region is larger than the third threshold value, the transmitting power corresponding to the target transmitting angle is kept unchanged.

The method of claim 1, wherein prior to obtaining the reflectivity of the first detection point of the first detection signal, further comprising:

acquiring a preset angle range;

and determining that the target emission angle does not belong to the preset angle range.

The method of claim 4, wherein after obtaining the predetermined angular range, further comprising: and if the target emission angle belongs to the preset angle range, keeping the emission power corresponding to the target emission angle unchanged.

The method of claim 3 or 5, wherein after keeping the transmit power corresponding to the target transmit angle unchanged, further comprising:

and if the number of times of continuously keeping the transmitting power corresponding to the target transmitting angle unchanged reaches a preset fourth threshold value, increasing the transmitting power corresponding to the target transmitting angle.

The method of claim 1, wherein prior to obtaining the reflectivity of the first detection point of the first detection signal, further comprising:

and determining that the preset characteristic object does not comprise the measured object.

The method of claim 7, further comprising:

and if the preset characteristic object comprises the measured object, keeping the transmitting power corresponding to the target transmitting angle unchanged.

The method of any of claims 1 to 8, after obtaining the reflectivity of the first detection point of the first detection signal, further comprising:

and if the reflectivity of the first detection point is not greater than the first threshold value, keeping the emission power corresponding to the target emission angle unchanged.

The method of any one of claims 1 to 9, wherein after increasing the transmit power corresponding to the target transmit angle, further comprising:

transmitting a second detection signal to the target transmission angle according to the increased transmission power;

acquiring a distance value between a second detection point of the second detection signal and the radar according to an echo signal corresponding to the second detection signal;

if the distance value between the second detection point and the radar is larger than a fifth threshold value, reducing the transmitting power corresponding to the target transmitting angle; and/or if the distance value between the second detection point and the radar is not larger than the fifth threshold, keeping the transmitting power corresponding to the target transmitting angle unchanged.

The method of claim 10, wherein after transmitting the second probing signal towards the target emission angle, further comprising:

and if the number of times of continuously not receiving the echo signal of the second detection signal reaches a sixth threshold value, reducing the transmitting power corresponding to the target transmitting angle.

The method of any of claims 1 to 11, wherein obtaining the reflectivity of the first detection point of the first detection signal comprises:

calculating the reflectivity of the first detection point according to the signal power of the echo signal of the first detection signal; and/or processing the optical image of the first detection point by adopting an image recognition algorithm to obtain the reflectivity of the first detection point.

The method according to any one of claims 1 to 12, wherein before acquiring the reflectivity of the first detection point of the first detection signal if the signal power of the echo signal of the first detection signal is smaller than a preset power threshold, the method further comprises:

and determining that the moving speed of the radar is greater than a preset seventh threshold value.

An apparatus, comprising:

the transmitting unit is used for transmitting a first detection signal to a target transmitting angle;

the device comprises a processing unit, a receiving unit and a processing unit, wherein the processing unit is used for acquiring the signal power of an echo signal of a first detection signal, the first detection signal is transmitted to a target transmitting angle by a radar according to the transmitting power corresponding to the target transmitting angle, and the target transmitting angle is included in a plurality of transmitting angles of the radar; if the signal power of the echo signal of the first detection signal is smaller than a preset power threshold, acquiring the reflectivity of a first detection point of the first detection signal, wherein the first detection point is a point on the surface of the measured object in the target emission angle direction; and if the reflectivity of the first detection point is greater than a preset first threshold value, increasing the emission power corresponding to the target emission angle.

The apparatus of claim 14, wherein the processing unit, prior to acquiring the reflectivity of the first detection point of the first detection signal, is further to: acquiring an echo-free area in a scanned image, wherein the scanned image is obtained according to echo signals of detection signals transmitted to a plurality of transmitting angles, and the echo-free area is an area corresponding to a plurality of echo signals which are continuous in space and have signal power smaller than the power threshold and are larger than a preset number; and determining that the area of a target echo-free area comprising the first detection point is not larger than a second threshold value, and/or determining that a solid angle corresponding to the target echo-free area is not larger than a third threshold value.

The apparatus of claim 15, wherein the processing unit, after acquiring the echo-free region in the scan image, is further to: if the area of the target echo-free region is larger than the second threshold value and the solid angle of the target echo-free region is larger than the third threshold value, the transmitting power corresponding to the target transmitting angle is kept unchanged.

The apparatus of claim 14, wherein the processing unit, prior to acquiring the reflectivity of the first detection point of the first detection signal, is further to: acquiring a preset angle range; and determining that the target emission angle does not belong to the preset angle range.

The apparatus of claim 17, wherein the processing unit, after obtaining the preset angular range, is further configured to: and if the target emission angle belongs to the preset angle range, keeping the emission power corresponding to the target emission angle unchanged.

The apparatus as claimed in claim 16 or 18, wherein said processing unit, after keeping the transmit power corresponding to the target transmit angle unchanged, is further configured to: and if the number of times of continuously keeping the transmitting power corresponding to the target transmitting angle unchanged reaches a preset fourth threshold value, increasing the transmitting power corresponding to the target transmitting angle.

The apparatus of claim 14, wherein the processing unit, prior to acquiring the reflectivity of the first detection point of the first detection signal, is further to: and determining that the preset characteristic object does not comprise the measured object.

The apparatus as recited in claim 20, said processing unit to further: and if the preset characteristic object comprises the measured object, keeping the transmitting power corresponding to the target transmitting angle unchanged.

The apparatus of any one of claims 14 to 21, wherein the processing unit, after acquiring the reflectivity of the first detection point of the first detection signal, is further configured to: and if the reflectivity of the first detection point is not greater than the first threshold value, keeping the emission power corresponding to the target emission angle unchanged.

The apparatus according to any one of claims 14 to 22, wherein the transmitting unit, after the processing unit increases the transmit power corresponding to the target transmission angle, is further configured to: transmitting a second detection signal to the target transmission angle according to the increased transmission power; the processing unit is further to: acquiring a distance value between a second detection point of the second detection signal and the device according to an echo signal corresponding to the second detection signal; if the distance value between the second detection point and the device is larger than a fifth threshold value, reducing the emission power corresponding to the target emission angle; and/or if the distance value between the second detection point and the device is not greater than the fifth threshold, keeping the transmission power corresponding to the target transmission angle unchanged.

The apparatus of claim 23, wherein the processing unit, after the transmitting unit transmits the second probing signal to the target transmission angle, is further configured to: and if the number of times of continuously not receiving the echo signal of the second detection signal reaches a sixth threshold value, reducing the transmitting power corresponding to the target transmitting angle.

The apparatus according to any of the claims 14 to 24, wherein the processing unit, when obtaining the reflectivity of the first detection point of the first detection signal, is specifically configured to: calculating the reflectivity of the first detection point according to the signal power of the echo signal of the first detection signal; and/or processing the optical image of the first detection point by adopting an image recognition algorithm to obtain the reflectivity of the first detection point.

The apparatus according to any one of claims 14 to 15, wherein the processing unit is further configured to, before obtaining the reflectivity of the first detection point of the first detection signal if the signal power of the echo signal of the first detection signal is smaller than a preset power threshold value: and determining that the moving speed of the radar is greater than a preset seventh threshold value.

An apparatus comprising a transceiver and a processor;

the transceiver is used for transmitting a detection signal and receiving an echo signal of the detection signal;

the processor is configured to execute the method according to any one of claims 1 to 13 according to an echo signal of the probe signal received by the transceiver by executing a program instruction.

A readable storage medium, comprising program instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 13.