CN115848270A - Visual field blind area detection module and method based on millimeter wave radar - Google Patents
Visual field blind area detection module and method based on millimeter wave radar Download PDFInfo
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- CN115848270A CN115848270A CN202310165318.4A CN202310165318A CN115848270A CN 115848270 A CN115848270 A CN 115848270A CN 202310165318 A CN202310165318 A CN 202310165318A CN 115848270 A CN115848270 A CN 115848270A
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Abstract
The invention discloses a module and a method for detecting a visual field blind area based on a millimeter wave radar, which relate to the technical field of millimeter wave radar application and comprise a vehicle-mounted millimeter wave radar blind area detection module, a group of fixed blind area millimeter wave radar modules and a blind area automatic guide device; the vehicle-mounted millimeter wave radar blind area detection module is arranged on the vehicle body, is electrically connected with a vehicle-mounted machine system communication of the vehicle body and is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror. The vehicle-mounted millimeter wave radar blind area detection module is used for monitoring and early warning of the visual field blind area based on the vehicle rearview mirror, the blind area risks of lane change, speed reduction or parking of most vehicles can be avoided, and the fixed blind area millimeter wave radar module can be used for the visual field blind area risks of a turning position during the running of the vehicles on a special road of a closed place.
Description
Technical Field
The invention relates to the technical field of millimeter wave radar application, in particular to a module and a method for detecting a blind area of a field of view based on a millimeter wave radar.
Background
The vision blind area of the vehicle running on the public road generally refers to the vision blind area existing in the rearview mirror, the vehicle with the blind area can not be seen before changing the road, and if the vehicle overtaking is arranged in the blind area, the collision accident can happen when the road is changed. In heavy rain weather, heavy fog weather, night light is dim, it is more difficult to see the rear vehicle clearly, lane change just faces bigger danger this moment, blind spot monitoring system is exactly that the blind area of solving the rear-view mirror produces, generally adopt blind spot monitoring system to carry out the auxiliary monitoring to this kind of rear-view mirror field of vision blind area, blind spot monitoring system is called the auxiliary system that merges again, english is called BSM or BLIS for short, be the high-tech configuration of a section of safety class on the car, the main function is to clear away the rear-view mirror blind area, detect the overtaking vehicle in the rear-view mirror blind area of vehicle both sides through microwave radar, with the warning to the driver, thereby avoid taking place the accident because the rear-view mirror blind area at lane change in-process. Many vehicle models that appear on the market all have the functional configuration of blind area monitoring.
However, vehicles or even large vehicles are required to assist production and transportation in a factory area or even in a large factory building, however, the layout of the factory building is different from that of roads, so that many view blind areas caused by obstacles from production materials or equipment exist, and therefore, a blind spot detection system on the vehicle cannot monitor the view blind areas caused by the obstacles.
Disclosure of Invention
The invention provides a module and a method for detecting a visual field blind area based on a millimeter wave radar, which aim to solve the problem of monitoring the visual field blind area during the running of vehicles in a factory. The following technical scheme is adopted:
the field-of-view blind area detection module based on the millimeter wave radar comprises a vehicle-mounted millimeter wave radar blind area detection module, a group of fixed blind area millimeter wave radar modules and a blind area automatic guide device;
the vehicle-mounted millimeter wave radar blind area detection module is arranged on the vehicle body, is in communication and electric connection with a vehicle-mounted machine system of the vehicle body, and is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror;
a set of fixed blind area millimeter wave radar module sets up the turning that the road has the barrier in the factory respectively, and fixed blind area millimeter wave radar module comprises a pair of vehicle detector, and a pair of vehicle detector sets up the both sides at the turning respectively for detect the vehicle that is close to the turning, blind area automatic guidance ware includes support, a pair of camera, a pair of fixed millimeter wave radar sensor, a pair of screen, main control circuit board and wireless transmission module based on the AI chip, the bottom of support is fixed to be set up in the turning, and the picture of turning both sides road is shot respectively to a pair of camera, and a pair of fixed millimeter wave radar sensor detects the removal speed, direction and the distance of object on the road of turning both sides respectively, and a pair of screen is installed respectively on the support, main control circuit board respectively with a pair of camera and a pair of fixed millimeter wave radar sensor communication connection to through wireless transmission module and factory wireless network and the car machine system wireless communication connection of vehicle body.
By adopting the technical scheme, the vehicle-mounted millimeter wave radar blind area detection module and the fixed blind area millimeter wave radar module are respectively in a vehicle blind area detection mode with two modes, and the vehicle-mounted millimeter wave radar blind area detection module is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror, so that the blind area risks of lane change, speed reduction or parking in most vehicles can be avoided;
however, for roads in closed places such as factories and the like, due to production and living demands, many unavoidable view blind areas at turning positions can appear, drivers cannot see objects in the blind areas at all, and the traditional method is to arrange a fixed reflector at the turning positions to solve the problem, but the visible areas of the reflector are limited, and the judgment and warning cannot be made on moving objects.
A pair of vehicle detector can realize making the detection judgement to the coming car of turning both sides, a pair of fixed millimeter wave radar sensor can make the detection to the moving object or the barrier distance of turning both sides, a pair of camera can directly shoot the picture of turning both sides, main control circuit board can form the online with the car machine system of vehicle body through wireless transmission module and factory wireless network, if there is the blind area risk in the judgement, then directly send the early warning to the driver through the car machine system, when the driver traveles the turning, can also directly observe the picture on the blind area lane through the screen, can greatly reduced the driving safety risk of inside roads such as factory.
Optionally, the vehicle-mounted millimeter wave radar blind area detection module includes at least one first millimeter wave radar sensor, at least one second millimeter wave radar sensor and at least two third millimeter wave radar sensors, the first millimeter wave radar sensor is disposed at a bumper at a rear portion of the vehicle body and used for monitoring a moving speed, a direction and a distance of an object behind the vehicle, the second millimeter wave radar sensor is disposed at a front portion of the vehicle body and used for monitoring a moving speed, a direction and a distance of an object in front of the vehicle, the third millimeter wave radar sensor is disposed at a side face of the vehicle body and used for monitoring a moving speed, a direction and a distance of an object at a side face of the vehicle, the first millimeter wave radar sensor, the second millimeter wave radar sensor and the third millimeter wave radar sensor are respectively and electrically connected with the vehicle system in a communication manner, and the vehicle system warns moving objects in various directions of the vehicle body according to detection data.
By adopting the technical scheme, the first millimeter wave radar sensor is mainly used for detecting the dangerous approaching object in the rear blind area of the vehicle body and providing the blind area early warning for the deceleration and parking of the vehicle body;
the second millimeter wave radar sensor is mainly used for detecting objects in a visual field blind area below a bumper in front of the vehicle body, wherein the objects may be fixed falling objects or moving small animals and the like, and the objects provide blind area early warning for the vehicle body to move forwards;
the third millimeter wave radar sensor is mainly used for detecting dangerous approaching objects in the side blind area of the vehicle body and providing blind area early warning for lane changing and parking of the vehicle body;
the driving risk that each vision blind area caused during the normal driving of greatly reduced vehicle body.
Optionally, the vehicle detector is a loop coil type ground sensing vehicle detector, and the pair of vehicle detectors are respectively embedded at two sides of a turn with an obstacle on a road in a factory.
Optionally, the midpoint a of the turn is used as a reference, and the pair of vehicle detectors are respectively arranged under the ground at positions 8-10 meters away from the midpoint a on both sides of the turn.
By adopting the technical scheme, the pair of vehicle detectors are arranged under the ground at the positions 8-10 meters away from the midpoint A at the two sides of the turning part, the incoming direction and the moving speed of the vehicle body can be obtained at the position 8-10 meters away from the turning part, the main control circuit board controls the opening of the fixed blind area millimeter wave radar module, the fixed blind area millimeter wave radar module is prevented from being in a working state for a long time, and the service life is prolonged.
Optionally, the pair of screens face the roads on the two sides respectively, and are used for displaying the road pictures sheltered from the obstacles to the driver of the vehicle body on the roads.
Optionally, the pair of screens are respectively mounted on the bracket through damping rotating shafts, and the orientation angle of the screens is adjusted through the damping rotating shafts.
Through adopting above-mentioned technical scheme, the setting of screen, the purpose is to provide the real-time picture of the road that is sheltered from by the barrier on the blind area road to the driver, the setting of damping pivot for the staff can provide better viewing angle, applicable in the road of different turning angles for the driver after by the blind area early warning through adjustment screen angle.
Optionally, fixed blind area millimeter wave radar module still includes the alarm, the alarm sets up the top at the support, the switch of main control circuit board control alarm.
Optionally, the alarm is an audible and visual alarm.
Through adopting above-mentioned technical scheme, audible-visual annunciator can provide the early warning of different modes for the driver, and the yellow light scintillation means to let the driver drive carefully, and the red light scintillation adds the alarm sound means to let the driver drive carefully, has the blind area object after turning.
The field-of-view blind area detection method based on the millimeter wave radar comprises the following specific steps:
detecting without turning blind areas, wherein when the vehicle is running in the forward direction, the first millimeter wave radar sensor and the third millimeter wave radar sensor respectively detect rear moving objects and side moving objects, and when the distance between the rear moving object and the vehicle body is less than 8 meters, or the distance between the side moving object and the vehicle body is less than 2 meters, and the distance is in a reduced state, an alarm is sent to a driver through a vehicle machine system;
the second millimeter wave radar sensor detects obstacles in a blind area in front of the vehicle body, and when the obstacles with the height of 30-200mm exist in the front, obstacle early warning is sent to a driver through the vehicle-mounted system;
the blind area that turns detects, vehicle body the place ahead is close when turning one side, the vehicle detector detects the position and the speed of vehicle body, when fixed millimeter wave radar sensor detects that there is potential dangerous object in the barrier blind area, master control circuit board control alarm opens red light scintillation and sends out the alarm sound, remind the driver to notice the blind area danger, master control circuit board sends danger alarm signal through factory wireless network and vehicle body to the car machine system, the car machine system sends the warning to the driver through the alarm device in the car, master control circuit board control screen shows the blind area picture of barrier to the driver simultaneously.
Optionally, during turning blind area detection, when the fixed millimeter wave radar sensor on the other side of the turning does not detect that potential dangerous objects exist in the obstacle blind area, the main control circuit board controls the alarm to turn on the yellow light to flash, and a driver is reminded to drive carefully.
By adopting the technical scheme, two sets of blind area detection methods are provided for the driver, and the risk of the blind area in the visual field when the vehicle body runs on the road special for the closed place can be greatly avoided.
In summary, the invention includes at least one of the following beneficial technical effects:
the invention provides a module and a method for detecting a vision blind area based on a millimeter wave radar, which adopt vehicle blind area detection hardware with two modes of a vehicle-mounted millimeter wave radar blind area detection module and a fixed blind area millimeter wave radar module and a matched detection method, wherein the vehicle-mounted millimeter wave radar blind area detection module is used for monitoring and early warning the vision blind area based on a vehicle rearview mirror, so that the blind area risks of lane changing, speed reducing or parking in most vehicles can be avoided, and the fixed blind area millimeter wave radar module can be used for the vision blind area risks of a turning position in the process of running the vehicles on a special road of a closed place.
Drawings
FIG. 1 is a schematic diagram of the connection principle of the electric devices of the module for detecting the blind area of the field of view based on the millimeter wave radar of the present invention;
FIG. 2 is a schematic diagram of the connection principle of the electric device of the vehicle-mounted millimeter wave radar blind area detection module of the millimeter wave radar-based vision field blind area detection module of the invention;
FIG. 3 is a schematic diagram illustrating the connection principle of the fixed blind area millimeter wave radar module electric device of the millimeter wave radar-based vision field blind area detection module of the present invention;
FIG. 4 is a schematic diagram of a top view structure of a module for detecting blind zones of a field of view based on a millimeter wave radar according to the present invention;
FIG. 5 is a schematic diagram of a side view structure of a fixed blind area millimeter wave radar module of the vision blind area detection module based on the millimeter wave radar of the present invention.
Description of reference numerals: 11. a first millimeter wave radar sensor; 12. a second millimeter wave radar sensor; 13. a third millimeter wave radar sensor; 21. a vehicle detector; 31. a support; 32. a camera; 33. a fixed millimeter wave radar sensor; 34. a screen; 341. a damping rotating shaft; 35. a main control circuit board; 36. a wireless transmission module; 37. an alarm; 100. a vehicle body; 1001. a vehicle machine system; 101. turning; 102. and (4) a factory wireless network.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses a module and a method for detecting a visual field blind area based on a millimeter wave radar.
Referring to fig. 1-5, the millimeter wave radar-based view blind area detection module comprises a vehicle-mounted millimeter wave radar blind area detection module, a group of fixed blind area millimeter wave radar modules and a blind area automatic guide device;
the vehicle-mounted millimeter wave radar blind area detection module is arranged on the vehicle body 100, is in communication and electric connection with a vehicle-mounted machine system 1001 of the vehicle body 100, and is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror;
a group of fixed blind area millimeter wave radar modules are respectively arranged at a turning part 101 with an obstacle on a road in a plant, each fixed blind area millimeter wave radar module is composed of a pair of vehicle detectors 21, the pair of vehicle detectors 21 are respectively arranged at two sides of the turning part 101 and used for detecting vehicles close to the turning part 101, each blind area automatic guide comprises a support 31, a pair of cameras 32, a pair of fixed millimeter wave radar sensors 33, a pair of screens 34, a main control circuit board 35 based on AI chips and a wireless transmission module 36, the bottom of the support 31 is fixedly arranged at the turning part 101, the pair of cameras 32 respectively shoot pictures of the road at two sides of the turning part 101, the pair of fixed millimeter wave radar sensors 33 respectively detect the moving speed, the direction and the distance of objects on the road at two sides of the turning part 101, the pair of screens 34 are respectively arranged on the support 31, the main control circuit board 35 is respectively in communication connection with the pair of cameras 32 and the pair of fixed millimeter wave radar sensors 33, and is in wireless communication connection with a vehicle machine system 1001 of the vehicle body 100 through the wireless transmission module 36 and a plant wireless network 102.
The vehicle-mounted millimeter wave radar blind area detection module and the fixed blind area millimeter wave radar module are respectively a vehicle blind area detection mode in two modes, and the vehicle-mounted millimeter wave radar blind area detection module is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror, so that most of blind area risks of lane changing, speed reducing or parking during vehicle running can be avoided;
for roads in closed places such as factories and the like, many inevitable vision blind areas of the turning 101 can appear due to production and life requirements, drivers cannot see objects in the blind areas, the traditional method is to arrange a fixed reflector at the turning 101 to solve the problem, however, the visible area of the reflector is limited, and the judgment and the warning cannot be made on moving objects.
The pair of vehicle detectors 21 can detect and judge the vehicles coming from two sides of the turning part 101, the pair of fixed millimeter wave radar sensors 33 can detect the distance between the moving objects or the obstacles on two sides of the turning part 101, the pair of cameras 32 can directly shoot the images on two sides of the turning part 101, the main control circuit board 35 can be connected with the vehicle system 1001 of the vehicle body 100 through the wireless transmission module 36 and the factory wireless network 102, if the blind area risk is judged to exist, the early warning is directly sent to a driver through the vehicle system 1001, when the driver drives the turning part 101, the images on the blind area lane can be directly observed through the screen 34, and the driving safety risk of internal roads such as a factory can be greatly reduced.
Vehicle-mounted millimeter wave radar blind area detection module includes at least one first millimeter wave radar sensor 11, at least one second millimeter wave radar sensor 12 and two at least third millimeter wave radar sensor 13, first millimeter wave radar sensor 11 sets up the afterbody bumper department at vehicle body 100, a moving speed for monitoring the object behind the vehicle, direction and distance, second millimeter wave radar sensor 12 sets up the front portion at vehicle body 100, a moving speed for monitoring the object in front of the vehicle, direction and distance, third millimeter wave radar sensor 13 sets up the side at vehicle body 100, a moving speed for monitoring the object of vehicle side, direction and distance, first millimeter wave radar sensor 11, second millimeter wave radar sensor 12 and third millimeter wave radar sensor 13 are connected with vehicle machine system 1001 communication electricity respectively, vehicle machine system 1001 makes the early warning to the moving object of vehicle body 100 each direction according to the detection data.
The first millimeter wave radar sensor 11 is mainly used for detecting a dangerous approaching object in a blind zone behind the vehicle body 100 and providing a blind zone early warning for deceleration and parking of the vehicle body 100;
the second millimeter wave radar sensor 12 is mainly used for detecting an object in a blind zone of the field of view below the bumper in front of the vehicle body 100, wherein the object may be a fixed falling object or a moving small animal and the like, and provides a blind zone early warning for the vehicle body 100 to move forward;
the third millimeter wave radar sensor 13 is mainly used for detecting dangerous approaching objects in the side blind area of the vehicle body 100 and providing blind area early warning for lane changing and parking of the vehicle body 100;
the driving risk caused by each vision blind area in the normal running of the vehicle body 100 is greatly reduced.
The vehicle detector 21 is a loop coil type ground-sensing vehicle detector, and a pair of vehicle detectors 21 are buried on both sides of a road corner 101 with an obstacle in a factory.
With the midpoint a of the turn 101 as a reference, a pair of vehicle detectors 21 are respectively disposed under the ground at positions 8-10 meters away from the midpoint a on both sides of the turn 101.
The pair of vehicle detectors 21 are arranged under the ground at the positions 8-10 meters away from the midpoint A of the two sides of the turning 101, the incoming direction and the moving speed of the vehicle body 100 can be obtained at the position 8-10 meters away from the turning 101, the main control circuit board 35 controls to start the fixed type blind area millimeter wave radar module, the fixed type blind area millimeter wave radar module is prevented from being in a working state for a long time, and the service life is prolonged.
The pair of screens 34 are directed to the roads on both sides, respectively, and are used for displaying the road image blocked by the obstacle to the driver of the vehicle body 100 on the road.
A pair of screens 34 are respectively mounted on the bracket 31 by means of damping rotating shafts 341, and the facing angles of the screens 34 are adjusted by means of the damping rotating shafts 341.
The setting of screen 34, the purpose is for providing the driver with the real-time picture of the road that is sheltered from by the barrier on the blind area road, the setting of damping pivot 341 for the staff can provide better viewing angle after by the blind area early warning for the driver through adjustment screen 34 angle, is applicable in the road of different turning angles.
Fixed blind area millimeter wave radar module still includes alarm 37, and alarm 37 sets up at the top of support 31, and master control circuit board 35 controls the switch of alarm 37.
The alarm 37 is an audible and visual alarm.
Audible and visual annunciator can provide the early warning of different modes for the driver, and the yellow light scintillation means to let the driver drive with care, and the red light scintillation adds the alarm sound and means to let the driver drive with care, has the blind area object after turning.
The field of view blind area detection method based on the millimeter wave radar specifically comprises the following steps:
detecting a turning-free blind area, wherein when a vehicle runs in the forward direction, the first millimeter wave radar sensor 11 and the third millimeter wave radar sensor 13 respectively detect rear and side moving objects, and when the distance between the rear moving object and the vehicle body 100 is less than 8 meters, or the distance between the side moving object and the vehicle body 100 is less than 2 meters, and the distance is in a reduced state, an alarm is sent to a driver through the vehicle-mounted system 1001;
the second millimeter wave radar sensor 12 detects a blind area obstacle in front of the vehicle body 100, and when the obstacle with the height of 30-200mm exists in the front, an obstacle early warning is sent to a driver through the vehicle machine system 1001;
turning blind area detection, when the front of the vehicle body 100 approaches one side of a turning 101, the position and the speed of the vehicle body 100 are detected by the vehicle detector 21, when a potential dangerous object exists in a blind area of an obstacle detected by the fixed millimeter wave radar sensor 33, the main control circuit board 35 controls the alarm 37 to turn on the red light to flash and give an alarm sound to remind a driver of paying attention to the danger of the blind area, the main control circuit board 35 sends a danger alarm signal to the vehicle machine system 1001 through the factory wireless network 102 and the vehicle body 100, the vehicle machine system 1001 sends an alarm to the driver through an alarm device in the vehicle, and meanwhile, the main control circuit board 35 controls the screen 34 to show the picture of the blind area of the obstacle to the driver.
In the turning blind area detection, when the fixed millimeter wave radar sensor 33 on the other side of the turning 101 does not detect that potential dangerous objects exist in the obstacle blind area, the main control circuit board 35 controls the alarm 37 to turn on the yellow light to flash, and a driver is reminded of driving carefully.
Two sets of blind area detection methods are provided for a driver, and the risk of vision blind areas when the vehicle body 1 runs on a road special for a closed place can be greatly avoided.
The invention relates to a module and a method for detecting a blind area of a visual field based on a millimeter wave radar, which have the following specific implementation principles:
in the road scene in a certain chemical plant, when a vehicle for transporting chemical raw materials is running in the forward direction, the first millimeter wave radar sensor 11 and the third millimeter wave radar sensor 13 respectively detect a rear moving object and a side moving object, and when the distance between the rear moving object and the vehicle body 100 is less than 8 meters, or the distance between the side moving object and the vehicle body 100 is less than 2 meters, and the distance is in a reduced state, an alarm is sent to a driver through the vehicle-mounted computer system 1001;
the second millimeter wave radar sensor 12 detects a blind area obstacle in front of the vehicle body 100, and when the obstacle with the height of 40mm exists in the front, an obstacle early warning is sent to a driver through the vehicle machine system 1001;
at a certain turning 101, due to the existence of chemical material stacking, the material stacking causes that both two-way lanes have vision blind areas, therefore, a fixed blind area millimeter wave radar module is arranged at the turning 101, when the front of a vehicle body 100 approaches one side of the turning 101, a vehicle detector 21 detects the position and the speed of the vehicle body 100, when a fixed millimeter wave radar sensor 33 detects that a potential dangerous object exists in a blind area of an obstacle, a main control circuit board 35 controls an alarm 37 to turn on a red light to flash and send out an alarm sound to remind a driver of paying attention to the blind area, the main control circuit board 35 sends out a danger alarm signal to a vehicle-mounted system 1001 through a factory wireless network 102 and the vehicle body 100, the vehicle-mounted system 1001 sends out an alarm to the driver through an alarm device in the vehicle, and meanwhile, the main control circuit board 35 controls a screen 34 to display a picture of the blind area of the obstacle to the driver.
When the fixed millimeter wave radar sensor 33 on the other side of the turning 101 does not detect that a potential dangerous object exists in the blind area of the obstacle, the main control circuit board 35 controls the alarm 37 to turn on the yellow light to flash, and the driver is reminded to drive carefully.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. Visual field blind area detection module based on millimeter wave radar, its characterized in that: the device comprises a vehicle-mounted millimeter wave radar blind area detection module, a group of fixed blind area millimeter wave radar modules and a blind area automatic guide device;
the vehicle-mounted millimeter wave radar blind area detection module is arranged on the vehicle body (100), is in communication and electric connection with a vehicle machine system (1001) of the vehicle body (100), and is used for monitoring and early warning of a visual field blind area based on a vehicle rearview mirror;
a set of fixed blind area millimeter wave radar module sets up respectively in the factory road has turning (101) of barrier, and fixed blind area millimeter wave radar module comprises a pair of vehicle detector (21), and a pair of vehicle detector (21) sets up respectively in the both sides of turning (101) for detect the vehicle near turning (101), the fixed setting in turning (101) in bottom of blind area automatic guidance ware includes support (31), a pair of camera (32), a pair of fixed millimeter wave radar sensor (33), a pair of screen (34), based on AI chip master control circuit board (35) and wireless transmission module (36), the fixed picture that sets up in turning (101) both sides road is taken respectively to a pair of camera (32), and a pair of fixed millimeter wave radar sensor (33) detect the moving speed, direction and the distance of object on turning (101) both sides road respectively, and a pair of screen (34) are installed respectively on support (31), master control circuit board (35) are connected with a pair of camera (32) and a pair of fixed radar sensor (33) communication respectively to wireless network vehicle system (1001) and wireless network vehicle body (100) through wireless transmission module (36).
2. The module of claim 1, wherein: the vehicle-mounted millimeter wave radar blind area detection module comprises at least one first millimeter wave radar sensor (11), at least one second millimeter wave radar sensor (12) and at least two third millimeter wave radar sensors (13), wherein the first millimeter wave radar sensor (11) is arranged at a tail bumper of a vehicle body (100) and used for monitoring the moving speed, direction and distance of an object behind the vehicle, the second millimeter wave radar sensor (12) is arranged at the front part of the vehicle body (100) and used for monitoring the moving speed, direction and distance of the object in front of the vehicle, the third millimeter wave radar sensor (13) is arranged on the side face of the vehicle body (100) and used for monitoring the moving speed, direction and distance of the object on the side face of the vehicle, the first millimeter wave radar sensor (11), the second millimeter wave radar sensor (12) and the third millimeter wave radar sensor (13) are respectively in communication and electric connection with a vehicle-mounted machine system (1001), and the vehicle-mounted machine system (1001) makes early warning on the object in each direction of the vehicle body (100) according to detection data.
3. The module of claim 1, wherein: the vehicle detectors (21) are loop coil type ground sensing vehicle detectors, and a pair of vehicle detectors (21) are respectively buried at two sides of a turning part (101) with an obstacle on a road in a factory.
4. The module of claim 1, wherein the module is configured to detect blind areas based on millimeter-wave radar: the pair of screens (34) face the roads on both sides, respectively, and are used for showing the images of the roads, which are blocked by the obstacles, to the driver of the vehicle body (100) on the roads.
5. The module of claim 4, wherein: the pair of screens (34) are respectively installed on the bracket (31) through the damping rotating shafts (341), and the orientation angle of the screens (34) is adjusted through the damping rotating shafts (341).
6. The module of claim 1, wherein: fixed blind area millimeter wave radar module still includes alarm (37), alarm (37) set up the top at support (31), the switch of alarm (37) is controlled in main control circuit board (35).
7. The module of claim 6, wherein: the alarm (37) is an audible and visual alarm.
8. The module of claim 3 for detecting blind areas of view based on millimeter wave radar, characterized in that: a pair of vehicle detectors (21) are respectively arranged under the ground at the positions 8-10 meters away from the midpoint A on both sides of the turning (101) by taking the midpoint A of the turning (101) as a reference.
9. The field of view blind area detection method based on the millimeter wave radar is characterized in that: the millimeter wave radar-based vision blind area detection module is adopted for blind area detection, and the specific method is as follows:
detecting a turning-free blind area, wherein when a vehicle runs in the forward direction, a first millimeter wave radar sensor (11) and a third millimeter wave radar sensor (13) respectively detect rear moving objects and side moving objects, and when the distance between the rear moving object and the vehicle body (100) is less than 8 meters, or the distance between the side moving object and the vehicle body (100) is less than 2 meters, and the distance is in a reduced state, an alarm is sent to a driver through a vehicle machine system (1001);
the second millimeter wave radar sensor (12) detects a blind area obstacle in front of the vehicle body (100), and when the obstacle with the height of 30-200mm exists in the front, an obstacle early warning is sent to a driver through the vehicle-mounted system (1001);
turning blind area detection, when vehicle body (100) the place ahead is close to turning (101) one side often, vehicle detector (21) detect the position and the speed of vehicle body (100), when fixed millimeter wave radar sensor (33) detect that there is potential dangerous object in barrier blind area, master control circuit board (35) control alarm (37) open red light scintillation and send out the alarm sound, remind the driver to notice the blind area danger, master control circuit board (35) send out danger alarm signal to car machine system (1001) through factory wireless network (102) and vehicle body (100), car machine system (1001) send out the warning to the driver through the alarm device in the car, master control circuit board (35) control screen (34) show barrier blind area picture to the driver simultaneously.
10. The millimeter wave radar-based view blind area detection method according to claim 9, wherein: during turning blind area detection, when the fixed millimeter wave radar sensor (33) on the other side of the turning part (101) does not detect that potential dangerous objects exist in the obstacle blind area, the main control circuit board (35) controls the alarm (37) to turn on the yellow light to flash, and a driver is reminded of driving carefully.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310165318.4A CN115848270A (en) | 2023-02-27 | 2023-02-27 | Visual field blind area detection module and method based on millimeter wave radar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310165318.4A CN115848270A (en) | 2023-02-27 | 2023-02-27 | Visual field blind area detection module and method based on millimeter wave radar |
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| CN115848270A true CN115848270A (en) | 2023-03-28 |
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| CN202310165318.4A Withdrawn CN115848270A (en) | 2023-02-27 | 2023-02-27 | Visual field blind area detection module and method based on millimeter wave radar |
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- 2023-02-27 CN CN202310165318.4A patent/CN115848270A/en not_active Withdrawn
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