CN211577427U

CN211577427U - Alarm event detection and positioning system

Info

Publication number: CN211577427U
Application number: CN201922078622.7U
Authority: CN
Inventors: 曾溢良; 张莉浩
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-25
Anticipated expiration: 2029-11-27

Abstract

The utility model provides an alarm incident detects and positioning system, this system includes: the device comprises a packaging shell, a data processor, an image collector and an audio collector; wherein, the image collector is arranged at the top end of the packaging shell; the audio collectors are uniformly distributed on the peripheral surface of the packaging shell; the data processor is packaged in the packaging shell, and the image collector and the audio collector are in communication connection with the data processor respectively. The utility model discloses an alarm incident detects and positioning system does not receive the influence of any weather, environment, can realize all-weather incident and detect and fix a position, can be applied to different complicated traffic environment simultaneously, has that the perception is strong, application scope is wide, detect the advantage that the precision is high, can effectively assist intelligent automobile's safe driving.

Description

Alarm event detection and positioning system

Technical Field

The utility model relates to an intelligent transportation system technical field especially indicates an alarm incident detects and positioning system.

Background

The intelligent automobile is a comprehensive system integrating functions of environmental perception, planning decision, multi-level auxiliary driving and the like, and has become a hot point of research in the field of vehicle engineering in the world and new power for increasing the automobile industry at present, and key artificial intelligence technologies such as intelligent perception, big data processing and the like further promote the rapid development of the intelligent automobile. The emergency response is one of the important factors for road safety driving, and how to ensure that an intelligent automobile can quickly sense and make decisions when encountering an emergency also becomes the key and difficult point of the current intelligent traffic field research.

At present, a laser radar is a mainstream device for environment perception of unmanned driving of an intelligent automobile, but is easily influenced by factors such as weather environment and vehicle shielding, and is difficult to distinguish whether a target is in an emergency state, so that the problem of high false alarm rate of emergency traffic incident detection easily occurs. Therefore, a system with high detection accuracy and adaptability is needed to improve the emergency event detection and location functions.

Meanwhile, due to the development of the intelligent network technology, the road end perception also needs to detect the special vehicle, and the special vehicle is difficult to identify and position through the morphological characteristics of the vehicle only by means of the laser radar.

The existing common alarm event detection mode is a fusion sensing mode based on video and sound perception and is easily influenced by ambient light.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an alarm incident detects and positioning system to solve the problem that the target that current alarm incident detection device exists shelters from, urgent emergent traffic incident detects the false alarm rate height, realize the detection and the location to the emergency alarm incident in complicated traffic environment.

In order to solve the technical problem, the utility model provides a following technical scheme:

an alarm event detection and location system, the alarm event detection and location system comprising: the device comprises a packaging shell, a data processor, an image collector and an audio collector;

the image collector is arranged at the top end of the packaging shell; the audio collectors are uniformly distributed on the peripheral surface of the packaging shell; the data processor is packaged in the packaging shell, and the image collector and the audio collector are respectively in communication connection with the data processor.

Optionally, the image collector is a laser radar module.

Optionally, the audio collector is a microphone sensor array module.

Optionally, the number of the image collectors is at least one.

Optionally, the number of the audio collectors is at least four.

Optionally, the package housing is a square housing or a circular housing.

Optionally, the laser radar module is any one or a combination of multiple of a mechanical laser radar, a MEMES laser radar, a FLASH laser radar, and a phased array laser radar.

Optionally, the alarm event detection and location system is mounted on a vehicle or a roadside pole.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

the utility model combines the microphone array module and the laser radar module, which can make up the deficiency of the single sensor detection and positioning scheme; the method comprises the steps of obtaining vehicle point cloud information in a coverage range through a laser radar module, collecting special vehicle audio positioning information through a microphone array module, and then carrying out corresponding processing through a data processor by combining the point cloud information and the audio positioning information to obtain the accurate position of the special vehicle. The microphone array module has good penetrating ability and strong sound receiving ability, so that the problem of airspace confusion can be effectively avoided, the influence of a target shielding factor is avoided, and the sound source positioning precision is high. The traffic environment information can be effectively guaranteed to be fully mastered by utilizing the fusion perception of the multiple sensors, so that the emergency response capability to emergency emergencies is improved, and the detection and the positioning of the emergency emergencies are realized.

Drawings

FIG. 1 is a schematic diagram of an alarm event detection and location system according to the present invention;

FIG. 2 is a schematic view of the alarm event detection and positioning system of the present invention installed in a roadside pole;

fig. 3 is a schematic diagram of the alarm event detection and positioning system of the present invention installed on the roof of a vehicle.

Description of reference numerals:

1. a laser radar module; 2. a microphone sensor array module; 3. a data processor;

4. a package housing; 5. a vehicle; 6. an alarm event detection and location system.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the present embodiment provides an alarm event detecting and positioning system 6, wherein the alarm event detecting and positioning system 6 includes a data processor 3, an image collector and a plurality of audio collectors; the image collector and the plurality of audio collectors are respectively in communication connection with the data processor 3;

specifically, in this embodiment, the image collector is a lidar module 1, the number of which is at least one, and the lidar module 1 may be any one or a combination of multiple kinds of a mechanical lidar, an mes lidar, a FLASH lidar and a phased array lidar; the audio collector is a microphone sensor array module 2, and the number of the audio collector is at least four.

The laser radar module 1 is used for acquiring image information of traffic environment in a coverage area in real time; the microphone sensor array module 2 is used for collecting audio information in a road environment in real time; the data processor 3 is used for processing the image information and the audio information of the traffic environment and outputting emergency detection and positioning results.

The laser radar module 1 and the microphone sensor array module 2 of the embodiment can acquire and sense 360-degree ambient environment information of a vehicle; the laser radar module 1 and the microphone sensor array module 2 are installed together and can receive audio signals in different directions; the laser radar image and the audio signal are combined, whether the road target is in an emergency condition or not can be distinguished, and the intelligent environment perception capability is improved. For different requirements of emergency detection and positioning range and precision, as well as lane width and number of lanes, the lidar sensors with different field angles and the microphone arrays with different numbers can be selected to meet the requirements.

In addition, the alarm event detecting and positioning system 6 of the present embodiment further includes a package housing 4, and the package housing 4 is mainly used for fixing the data processor 3, placing the microphone sensor array module 2 and supporting the laser radar module 1, so as to ensure that the signal transmission lines of the modules are neat and safe, and have an attractive appearance. The packaging shell 4 can be a square shell or a round shell and can carry a plurality of microphone sensor array modules 2; it is understood, of course, that the present embodiment is not limited to the specific shape of the package housing 4.

Specifically, the lidar module 1 is disposed at the uppermost end of the package housing 4, and is generally disposed at the top end of the smart car, and acquires image information of the lidar in the surrounding environment of the vehicle to the greatest extent in a scanning manner, and transmits the image information to the data processor 3. The microphone sensor array module 2 includes at least 4 microphone arrays respectively and uniformly disposed on the peripheral surface of the package housing 4 to ensure that sounds in all directions can be received and transmit audio information to the data processor 3. The data processor 3 is packaged in the packaging shell 4, is composed of an embedded system, has a plurality of signal input interfaces and strong signal processing capacity, can meet the high-performance processing requirements on signals of the multi-path microphone sensor array module 2 and the laser radar module 1, can perform real-time data processing, and completes event detection and positioning.

Further, the lidar module 1 includes a lidar sensor and an image signal acquisition. The above-described microphone sensor array module 2 includes a plurality of microphone array sensors and sound signal reception.

The operations of the laser radar module 1 and the microphone sensor array module 2, such as data acquisition, data processing, detection result output and the like, belong to the common general knowledge in the technical field; therefore, it is not described herein.

As shown in fig. 2, the alarm event detection and localization system 6 of the present embodiment is installed at the side of the road for detecting alarm events within the coverage area.

As shown in fig. 3, the alarm event detection and localization system 6 of the present embodiment is mounted above the vehicle 5 for detecting alarm events around the vehicle.

Further, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

It should be noted that although the preferred embodiment of the present invention has been described, it will be apparent to those skilled in the art that once the basic inventive concepts of the present invention have been fully appreciated, many modifications and enhancements can be made without departing from the principles of the present invention, which should also be considered as within the scope of the present invention. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

Claims

1. An alarm event detection and location system, comprising: the device comprises a packaging shell, a data processor, an image collector and an audio collector;

2. The alarm event detection and localization system of claim 1, wherein the image collector is a lidar module.

3. The alarm event detection and location system of claim 1, wherein the audio collector is a microphone sensor array module.

4. The alarm event detection and localization system of claim 1, wherein the number of image collectors is at least one.

5. The alarm event detection and location system of claim 1, wherein the number of audio collectors is at least four.

6. The alarm event detection and localization system of claim 1, wherein said enclosure housing is a square housing or a circular housing.

7. The alarm event detection and location system of claim 2, wherein the lidar module is any one or combination of mechanical lidar, MEMES lidar, FLASH lidar, phased array lidar.

8. The alarm event detection and location system of claim 1, wherein the alarm event detection and location system is mounted on a vehicle or a roadside pole.