KR20200107487A - Apparatus and method for complementing blockage detection of automotive radar - Google Patents

Abstract

The present invention relates to an apparatus for complementing blockage detection of an automotive radar and a method thereof. The apparatus includes: a radar which transmits a radar signal and detects an object around a vehicle by detecting the radar signal which is reflected from the object and is returned; an environmental information acquisition unit which obtains environmental information at a location where the vehicle is driving; and a controller which changes a blocking determination condition set based on a reception rate for each distance of the radar signal according to the environmental information acquired from the environmental information acquisition unit and determines whether the radar is blocked according to the changed blocking determination condition. According to the present invention, it is possible to stably determine whether the radar is blocked even in an unusual driving environment.

Description

Block detection supplement device and method of vehicle radar {APPARATUS AND METHOD FOR COMPLEMENTING BLOCKAGE DETECTION OF AUTOMOTIVE RADAR}

The present disclosure relates to an apparatus and method for supplementing blocking detection of a vehicle radar.

Recently, various devices for assisting a driver's vehicle operation or for autonomous driving have been commercialized or developed. In accordance with this trend, radar provided in a vehicle is used to assist the operation of a vehicle by detecting objects around the vehicle and providing information.

When foreign substances or objects are present in the vicinity of the vehicle radar, the transmitting antenna or the receiving antenna of the radar may be blocked. When the radar is blocked, the operation of the vehicle radar may be deteriorated, or the vehicle radar may not perform an appropriate operation. Accordingly, the accuracy and reliability of the radar may be degraded.

Therefore, radars capable of detecting blocking of radar are provided. However, there is a need for a supplementary plan for a case in which there is a possibility that the radar may be misdiagnosed as a situation where the radar is blocked according to an unusual driving environment such as an open area where there are few detectable targets around the vehicle.

Against this background, the object of the present disclosure is to reset the blocking determination condition according to the environmental information at the location where the vehicle is driving, so that it is possible to stably determine whether or not the radar is blocked even in an unusual driving environment. And to provide a method.

Another object of the present disclosure is an apparatus and method for complementary detection of blocking detection of a vehicle radar capable of actively responding to changes in the driving environment by automatically changing the blocking determination condition of the radar to suit the changed environment when the environment changes while the vehicle is driving Is to provide.

In order to achieve the above object, in one aspect, the present disclosure transmits a radar signal and detects a radar signal reflected and returned from an object to detect an object around the vehicle, and environmental information at a location where the vehicle is driving. The environmental information acquisition unit that acquires and changes the blocking determination condition set based on the reception rate for each distance of the radar signal according to the environmental information acquired from the environmental information acquisition unit, and whether or not the radar is blocked according to the changed blocking determination condition. It provides a vehicle radar blocking detection supplement device including a controller to determine.

In another aspect, the present disclosure transmits a radar signal and detects an object around the vehicle by detecting a radar signal reflected and returned to the object, acquiring environmental information at a location where the vehicle is driving, and It provides a method for detecting and supplementing blocking of a vehicle radar, including the step of changing a blocking determination condition set based on a reception rate for each distance according to the acquired environmental information, and determining whether or not the radar is blocked according to the changed blocking determination condition.

As described above, according to the present disclosure, by resetting the blocking determination condition according to the environmental information at the location where the vehicle is driving, the blocking detection of the vehicle radar capable of stably determining whether the radar is blocked even in an unusual driving environment is supplemented. Apparatus and method can be provided.

In addition, according to the present disclosure, when the environment changes while the vehicle is running, the blocking detection and supplementation device and method for a vehicle radar capable of actively responding to changes in the driving environment by automatically changing the blocking determination condition of the radar to suit the changed environment Can provide.

1 is a block diagram of an apparatus for supplementing blocking detection of a radar for a vehicle according to the present disclosure.
2 is a block diagram of a controller included in the apparatus for detecting and supplementing blocking of a radar for a vehicle according to the present disclosure.
3 is a block diagram of an environment information acquisition unit included in the apparatus for detecting and supplementing blocking of a vehicle radar according to the present disclosure.
4 is a diagram for explaining a blocking determination condition for determining whether a radar is blocked according to the present disclosure.
5 is a flowchart illustrating a method of supplementing blocking detection of a radar for a vehicle according to the present disclosure.
6 is a flowchart illustrating a method of supplementing blocking detection of a radar for a vehicle in consideration of changes in environmental information according to the present disclosure.

Hereinafter, some embodiments of the present disclosure will be described in detail through exemplary drawings. In adding reference numerals to elements of each drawing, the same elements may have the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present disclosure, if it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present disclosure, a detailed description thereof may be omitted.

In addition, in describing the constituent elements of the present disclosure, terms such as first, second, A, B, (a) and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to that other component, but another component between each component It should be understood that elements may be “connected”, “coupled” or “connected”.

In the present disclosure, "environmental information" is information on the environment, such as topography, geographic location, temperature, humidity, weather, etc. at a location in which a vehicle to which the embodiments of the present disclosure is applied is driving, and affects the reception rate of a radar signal. It means information that can have an impact. In addition, "blockage of radar" refers to various conditions in which transmission or detection of radar signals is disturbed, such as a specific object near a radar provided in a vehicle or a foreign object is buried in the radar.

1 is a block diagram of an apparatus for supplementing blocking detection of a radar for a vehicle according to the present disclosure.

Referring to FIG. 1, the vehicle radar blocking detection supplement 100 according to embodiments of the present disclosure transmits a radar signal and detects a radar signal reflected and returned from an object to detect objects around the vehicle. The radar 110, the environmental information acquisition unit 140 for acquiring environmental information at the location where the vehicle is driving, and the environment acquired from the environmental information acquisition unit for a blocking determination condition set based on the reception rate for each distance of the radar signal. It changes according to the information and includes a controller 120 that determines whether or not the radar is blocked according to the changed blocking determination condition.

In addition, the block detection supplement device 100 for a vehicle radar according to the embodiments of the present disclosure is controlled by a memory 130 and a controller for storing a change value of the blocking determination condition corresponding to the blocking determination condition and environmental information. It may further include an output unit 150 for outputting a radar cut-off alarm.

The radar 110 transmits a radar signal, detects that the transmitted radar signal is reflected and returned to the object, and provides information on objects around the vehicle. The radar 110 may include a transmitting antenna for transmitting a radar signal and a receiving antenna for detecting a reflected radar signal. In the present disclosure, the radar is not limited to a specific radar, and embodiments of the present disclosure may be substantially applied to any radar, except for cases where it is not applicable.

The controller 120 may be implemented as a processor or an electronic control device capable of controlling the overall operation of the vehicle radar blocking detection and supplementation device 100. The controller 120 may process signals, data, information, etc. that are input or output through the components of the vehicle radar blocking detection and supplementation device 100. The controller 120 may control components of the vehicle radar blocking detection supplement device 100.

The controller 120 receives information obtained from the radar 110, reads related information from the memory 130, and determines whether the radar 110 is blocked according to the blocking determination condition for determining whether or not the radar is blocked. I can. When it is determined that the radar 110 is blocked, the controller 120 may control the output unit 150 to output a radar cutoff alarm.

The blocking determination condition may be set based on a reception rate for each distance of a radar signal. The radar 110 may calculate a distance to the object by detecting a radar signal reflected and returned from a certain object. Accordingly, by classifying the distance from which the radar signal is reflected into a predetermined section, it is possible to obtain a reception rate of the radar signal for each section. According to an example, a radar signal reception rate for each distance may be obtained by dividing a section into a short range, a medium range, and a long range.

According to an example, each section may be set based on the maximum effective detection distance of the radar. For example, by dividing the maximum effective sensing distance into three, it can be divided into a short distance section, a medium distance section, and a far distance section. However, this is an example and is not limited thereto. A distance-specific section for obtaining a reception rate of a radar signal for each distance may be further subdivided as necessary, and a distance for each section may be set differently.

According to an example, a reference value of a reception rate for each distance of a radar measured in a normal driving environment may be set in advance. While the vehicle is driving, the controller 120 may receive a reception rate for each distance of a radar signal from the radar 110. The controller 120 may determine whether or not the radar is blocked by comparing the received reception rate for each distance with a preset reference value of the reception rate in a typical driving environment.

The controller 120 may change the blocking determination condition by receiving the environment information obtained by the environment information obtaining unit 140 and reading related information from the memory 130. The environmental information may include topography, geographic location, temperature, humidity, or weather information of a location where a vehicle is driving, which affects the reception rate of radar signals by distance. The controller 120 may determine whether the environmental information is changed according to the driving of the vehicle, based on the received environmental information.

For example, it is assumed that the standard of the near-range reception rate of a radar signal is set to 50% in a normal driving environment. That is, when the near-range reception rate of the radar signal exceeds 50%, the controller 120 may consider that the near-range reception rate is abnormally high, and determine that the radar 110 is in a blocked state.

Assuming this case, it is assumed that the vehicle travels in a place such as an open area where there are few objects around. A large part of the detected radar signal is occupied by the radar signal reflected from the ground and returned. Therefore, in a place such as an open area, a higher short-range reception rate (for example, assuming an average of 55%) than a normal driving environment appears.

Even in this case, if the standard of the near-range reception rate of the radar signal is maintained at 50%, the controller 120 may determine that the radar 110 is in a blocked state because the received near-range reception rate is higher than the reference value. That is, even when the radar 110 is actually in a normal state, it is misjudged as being in a blocked state.

In order to prevent this, when the environmental information is changed according to the driving of the vehicle, the controller 120 may change the blocking determination criterion to suit the changed environmental information. The controller 120 may determine whether the radar 110 is blocked according to the changed blocking determination condition. That is, in the above-described example, when the standard of the near-range reception rate of the radar signal is changed to 60%, the controller 120 may determine that the radar 110 is in a normal state.

The memory 130 may store a blocking determination condition for determining whether to block the radar and a change value of the blocking determination condition corresponding to environmental information. The memory 130 may store an algorithm for determining whether or not the radar is blocked by applying the blocking determination condition. If the information can be stored, the memory is not limited to a specific memory.

The environment information acquisition unit 140 may include various devices for acquiring information on an environment, such as topography, geographic location, temperature, and humidity at a location where the vehicle is driving. According to an example, the environment information acquisition unit 140 includes a camera that acquires an image for determining the external environment, various sensors capable of detecting temperature or humidity, and a navigation that can provide information on a geographic location. Can include.

However, this is an example and is not limited thereto. The environmental information acquisition unit 140 may include any device as long as it can acquire information on factors that may affect the blocking of the radar.

The output unit 150 is for generating an output related to visual, auditory, or tactile sense according to the control of the controller 120 and may include a display, an audio output module, or a hap tip module. For example, the output unit 150 may output a radar cutoff alarm to the display as text or symbols. The output unit 150 may output a radar cutoff alarm through a speaker through voice or sound. The output unit 150 may output a radar cutoff alarm as a specific vibration to a steering wheel or the like.

According to an example, the radar 110, the controller 120, and the memory 130 of the vehicle radar blocking detection supplement 100 may be implemented as one module. However, this is an example and is not limited thereto. According to another example, the controller 120 may be implemented as a processor or an electronic control device that controls the operation of the vehicle, and the memory 130 may be a memory separately provided in the vehicle.

Accordingly, it is possible to stably determine whether or not the radar is blocked even in an unusual driving environment by resetting the blocking determination condition according to environmental information at the location where the vehicle is driving. Hereinafter, the operation of the vehicle radar blocking detection supplement 100 will be described in detail with reference to the related drawings.

FIG. 2 is a block diagram of a controller included in a vehicle radar block detection supplement device according to the present disclosure. 3 is a block diagram of an environment information acquisition unit included in the apparatus for detecting and supplementing blocking of a vehicle radar according to the present disclosure. 4 is a diagram for explaining a blocking determination condition for determining whether a radar is blocked according to the present disclosure.

Referring to FIG. 2, the controller 120 of the vehicle radar blocking detection and supplementation device 100 changes the blocking determination condition, which is a criterion for determining whether or not the radar is blocked, according to environmental information. , A blocking determination unit 123 that determines whether the state of the radar is a blocking state based on the blocking determination condition, and a blocking alarm control unit 125 that outputs a laser blocking signal to the output unit 150 when it is determined that the radar is in a blocking state. ) Can be included.

The determination condition change unit 121 may determine whether the driving environment of the vehicle is changed by using the environment information acquired by the environment information acquisition unit 140. Referring to FIG. 3, the environmental information acquisition unit 140 stores a camera 141 for capturing an image around the vehicle, a navigation 143 for providing location information on which the vehicle is running, and climate information such as temperature and humidity. It may include various sensors 145 to obtain. In addition, the environment information acquisition unit 140 may include a communication unit for acquiring weather information.

The change in the driving environment means that it is impossible to determine the blocking state of the radar 110 normally with the reference value according to the currently set blocking determination condition according to the change in the reception rate for each distance of the radar signal detected according to the changed driving environment. Can mean change. For example, this may correspond to a case where the normal short-range reception rate in the changed driving environment is 55% on average and the reference value of the currently set blocking determination condition is 50%. According to an example, a reception rate for each distance of a radar for various driving environments for determining a change in the driving environment may be preset.

When it is determined that the driving environment is maintained, the determination condition change unit 121 may maintain the currently set blocking change condition. When it is determined that the driving environment of the vehicle is changed, the determination condition changing unit 121 may read a change value of the blocking determination condition corresponding to the changed driving environment from the memory 130.

According to an example, the blocking determination condition may be set for a short range reception rate, a medium range reception rate, and a far range reception rate of the detected radar signal. Referring to FIG. 4, a reference value of a reception rate for each distance in a normal driving state may be set as a short range reception rate of 50%, a medium range reception rate of 30%, and a long range reception rate of 20%. This means that when the near-range reception rate of the radar signal detected while the vehicle is driving is higher than 50%, the mid-range reception rate is lower than 30%, and the long-range reception rate is lower than 20%, the radar 110 is determined to be in a blocked state.

If it is determined that the vehicle is traveling in an open area according to the environmental information obtained by the environmental information acquisition unit 140, it is assumed. In this case, the determination condition changing unit 121 may change the blocking determination criterion so that the reference value of the reception rate for each distance is 60% of the near-range reception rate, 25% of the mid-range reception rate, and 15% of the remote reception rate, as shown in FIG. 4. This reflects that the near-field reception rate is higher in open areas than in the usual case.

If it is determined that the vehicle is traveling in the desert according to the environmental information obtained by the environmental information acquisition unit 140, it is assumed. In this case, the determination condition changing unit 121 may change the blocking determination criterion so that the reference value of the reception rate for each distance becomes 70% of the near-range reception rate, 20% of the mid-range reception rate, and 10% of the remote reception rate, as shown in FIG. 4. This reflects that the near-range reception rate is higher in the desert than in open areas.

In FIG. 4, it is shown that the sum of the reference values of the short range reception rate, the medium range reception rate, and the far range reception rate is 100%, but is not limited thereto. The sum of the reference values of the reception rates for each distance may be set differently according to the driving situation.

4 illustrates an open area and a desert case, but is not limited thereto. An appropriate blocking determination condition may be set according to various driving environments including terrain, geographic location, temperature, humidity, or weather information that affect the reception rate of radar signals by distance. Accordingly, even when the driving environment is changed, it is possible to reduce the possibility of an erroneous judgment about the radar blocking state due to a change in the reception rate for each distance of the detected radar signal, so that it is possible to more stably determine whether to block the radar.

Referring back to FIG. 3, the blocking determination unit 123 may determine whether the radar 110 is blocked based on the blocking determination condition set by the determination condition changing unit 121. According to an example, the blocking determination unit 123 determines that the short-range reception rate of the detected radar signal is higher than the blocking determination condition, the near-range reception rate of the detected radar signal is lower than the blocking determination condition, and the short-range reception rate of the detected radar signal is blocked. If it is lower than the condition, it can be determined that the radar is blocked.

However, this is an example, and the result of comparing the short range reception rate, the medium range reception rate, and the remote reception rate with each reference value does not have to satisfy all of the above examples. For example, if the short-range reception rate is higher than the blocking determination condition by a predetermined value or more, the blocking state may be determined regardless of the value of the medium-range reception rate or the remote reception rate.

Referring back to FIG. 3, when it is determined that the radar is blocked, the blocking alarm control unit 125 may control to perform a radar blocking alarm by outputting a radar blocking signal to the output unit 150. The output unit 150 may output a radar cutoff alarm on the display as a character or a symbol under the control of the cutoff alarm control unit 125. The output unit 150 may output a radar cutoff alarm through a speaker, such as voice or sound, under the control of the cutoff alarm controller 125. The output unit 150 may output a radar cutoff alarm as a specific vibration to a steering wheel or the like under the control of the cutoff alarm controller 125.

Accordingly, it is possible to stably determine whether or not the radar is blocked even in an unusual driving environment by resetting the blocking determination condition according to environmental information at the location where the vehicle is driving. In addition, when the environment changes while the vehicle is driving, the radar blocking determination condition is automatically changed to suit the changed environment, so that it is possible to actively respond to changes in the driving environment.

5 is a flowchart illustrating a method of supplementing blocking detection of a radar for a vehicle according to the present disclosure. 6 is a flowchart illustrating a method of supplementing blocking detection of a radar for a vehicle in consideration of changes in environmental information according to the present disclosure.

The method for complementing blocking detection of a vehicle radar according to the present disclosure may be implemented in the apparatus 100 for detecting blocking of a vehicle radar described with reference to FIG. 2. Hereinafter, with reference to necessary drawings, a detailed description will be given of a method of supplementing blocking detection of a vehicle radar according to the present disclosure and an operation of the blocking detection supplementing apparatus 100 of a vehicle radar for implementing the same.

Referring to FIG. 5, the radar may transmit a radar signal and detect an object around a vehicle by detecting a radar signal reflected and returned from the object [S110].

The radar 110 transmits a radar signal, detects that the transmitted radar signal is reflected and returned to the object, and provides information on objects around the vehicle. The radar 110 may include a transmitting antenna for transmitting a radar signal and a receiving antenna for detecting a reflected radar signal.

Referring back to FIG. 5, the environment information acquisition unit may acquire environment information at a location where the vehicle is driving [S120].

The environment information acquisition unit 140 may include various devices for acquiring information on an environment, such as topography, geographic location, temperature, and humidity at a location where the vehicle is driving. According to an example, the environment information acquisition unit 140 includes a camera that acquires an image for determining the external environment, various sensors capable of detecting temperature or humidity, and a navigation that can provide information on a geographic location. Can include.

Referring back to FIG. 5, the controller may change the blocking determination condition set based on the reception rate for each distance of the radar signal according to the acquired environmental information [S130].

As shown in FIG. 6, the controller 120 may determine whether the driving environment of the vehicle is changed by using the environment information acquired by the environment information acquisition unit 140 [S210]. The change in the driving environment means that according to the change in the reception rate for each distance of the radar signal detected according to the changed driving environment, the blocking state of the radar 110 cannot be determined normally with the reference value according to the currently set blocking determination condition. Can mean change.

If it is determined that the driving environment is maintained [S210, No], the controller 120 may maintain the currently set blocking change condition. When it is determined that the driving environment of the vehicle is changed [S210, Yes], the controller 120 reads a change value of the blocking determination condition corresponding to the changed driving environment from the memory 130, and may change the blocking determination condition [ S220].

According to an example, the blocking determination condition may be set for a short range reception rate, a medium range reception rate, and a far range reception rate of the detected radar signal. Referring to FIG. 4, a reference value of a reception rate for each distance in a normal driving state may be set as a short range reception rate of 50%, a medium range reception rate of 30%, and a long range reception rate of 20%. This means that when the near-range reception rate of the radar signal detected while the vehicle is driving is higher than 50%, the mid-range reception rate is lower than 30%, and the long-range reception rate is lower than 20%, the radar 110 is determined to be in a blocked state.

If it is determined that the vehicle is traveling in an open area according to the environmental information obtained by the environmental information acquisition unit 140, it is assumed. In this case, as shown in FIG. 4, the controller 120 may change the blocking determination criterion so that the reference value of the reception rate for each distance is 60% of the near-range reception rate, 25% of the mid-range reception rate, and 15% of the remote reception rate. This reflects that the near-field reception rate is higher in open areas than in the usual case.

If it is determined that the vehicle is traveling in the desert according to the environmental information obtained by the environmental information acquisition unit 140, it is assumed. In this case, as shown in FIG. 4, the controller 120 may change the blocking determination criterion so that the reference value of the reception rate for each distance is 70% of the near-range reception rate, 20% of the mid-range reception rate, and 10% of the remote reception rate. This reflects that the near-range reception rate is higher in the desert than in open areas.

Referring back to FIG. 5, the controller may determine whether to block the radar according to the changed blocking determination condition [S140].

The controller 120 may determine whether or not the radar 110 is blocked based on the changed blocking determination condition. According to an example, the controller 120 has a short-range reception rate of the detected radar signal higher than the blocking determination condition, a short-range reception rate of the detected radar signal is lower than the blocking determination condition, and the short-range reception rate of the detected radar signal is higher than the blocking determination condition. If it is low, it can be determined that the radar is blocked.

However, this is an example, and the result of comparing the short range reception rate, the medium range reception rate, and the remote reception rate with each reference value does not have to satisfy all of the above examples. For example, if the short-range reception rate is higher than the blocking determination condition by a predetermined value or more, the blocking state may be determined regardless of the value of the medium-range reception rate or the remote reception rate.

Referring back to FIG. 5, the controller may output a radar cutoff signal to perform a radar cutoff alarm to the output unit [S150].

The output unit 150 may perform a radar blocking alarm according to the radar blocking signal received from the controller 120. The output unit 150 may output a radar cutoff alarm to the display in text or symbols. The output unit 150 may output a radar cutoff alarm through a speaker through voice or sound. The output unit 150 may output a radar cutoff alarm as a specific vibration to a steering wheel or the like.

Accordingly, it is possible to stably determine whether or not the radar is blocked even in an unusual driving environment by resetting the blocking determination condition according to environmental information at the location where the vehicle is driving. In addition, when the environment changes while the vehicle is driving, the radar blocking determination condition is automatically changed to suit the changed environment, so that it is possible to actively respond to changes in the driving environment.

The above-described present disclosure can be implemented as a computer-readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices storing data that can be read by a computer system. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet). In addition, the computer may include the controller 120 of the present disclosure.

The description above and the accompanying drawings are merely illustrative of the technical idea of the present disclosure, and those of ordinary skill in the technical field to which the present disclosure pertains, combinations of configurations without departing from the essential characteristics of the present disclosure Various modifications and variations, such as separation, substitution, and alteration, will be possible. Accordingly, the embodiments disclosed in the present disclosure are not intended to limit the technical idea of the present disclosure, but to describe, and the scope of the technical idea of the present disclosure is not limited by these embodiments. That is, as long as it is within the scope of the object of the present disclosure, one or more of the components may be selectively combined and operated. The scope of protection of the present disclosure should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present disclosure.

100: Vehicle radar block detection supplement
110: radar 120: controller
130: memory 140: environment information acquisition unit
150: output

Claims (10)

A radar that transmits a radar signal and detects an object around the vehicle by detecting a radar signal reflected and returned from the object;
An environment information acquisition unit that acquires environment information at a location where the vehicle is driving; And
A controller configured to change a blocking determination condition set based on a reception rate for each distance of the radar signal according to environmental information obtained from the environmental information acquisition unit, and determine whether to block the radar according to the changed blocking determination condition;
A vehicle radar block detection supplement comprising a. The method of claim 1,
The blocking determination condition is set for a short range reception rate, a medium range reception rate, and a long range reception rate of the detected radar signal,
The controller has a short-range reception rate of the detected radar signal higher than the blocking determination condition, a short-range reception rate of the detected radar signal is lower than the blocking determination condition, and the short-range reception rate of the detected radar signal is lower than the blocking determination condition. In the case of a vehicle radar blocking detection supplement that determines that the radar is blocking. The method of claim 1,
The environment information acquisition unit includes a camera, a navigation device, or at least one sensor for acquiring the environment information,
The environmental information includes topography, geographic location, temperature, humidity, or weather information of a location where the vehicle is driving, which affects a reception rate for each distance of the radar signal. The method of claim 1,
A memory for storing the blocking determination condition and a change value of the blocking determination condition corresponding to the environmental information;
A vehicle radar block detection supplement device further comprising a. The method of claim 1,
Output section; Including more,
When it is determined that the radar is blocked, the controller outputs a radar block signal to the output unit to perform a radar block alarm. Transmitting a radar signal and detecting an object around the vehicle by detecting a radar signal reflected and returned to the object;
Acquiring environmental information at a location where the vehicle is driving;
Changing a blocking determination condition set based on a reception rate for each distance of the radar signal according to the obtained environmental information; And
Determining whether the radar is blocked according to the changed blocking determination condition;
Block detection complement method of a vehicle radar comprising a. The method of claim 6,
The blocking determination condition is set for a short range reception rate, a medium range reception rate, and a long range reception rate of the detected radar signal,
In the step of determining whether to block, the near-range reception rate of the detected radar signal is higher than the blocking determination condition, the near-range reception rate of the detected radar signal is lower than the blocking determination condition, and the near-range reception rate of the detected radar signal is the Block detection supplement method of a vehicle radar in which it is determined that the radar is blocking when the blocking determination condition is lower. The method of claim 6,
The environmental information includes topography, geographic location, temperature, humidity, or weather information of a location where the vehicle is driving, which affects a reception rate for each distance of the radar signal. The method of claim 6,
The step of changing the blocking determination condition may include changing the blocking determination condition using a change value of the blocking determination condition corresponding to the environmental information stored in a memory. The method of claim 6,
If it is determined that the radar is blocked, outputting a radar blocking signal to control execution of a radar blocking alarm.

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