CN215944432U

CN215944432U - Vehicle blind area detection device with multi-sensor fusion

Info

Publication number: CN215944432U
Application number: CN202121604772.8U
Authority: CN
Inventors: 李阳; 潘翔
Original assignee: Guangxi Vocational Normal University
Current assignee: Guangxi Vocational Normal University
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-03-04
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a vehicle blind area detection device with multiple sensors integrated, which comprises a master control module, an ultrasonic sensor, an infrared sensor, a visual sensor, a display module, an alarm module and a voice module. The master control module is respectively connected with the ultrasonic sensor, the infrared sensor, the visual sensor, the voice module, the display module and the alarm module; the general control module comprises an embedded microprocessor, a storage unit, an internal memory and an interface unit. The utility model comprehensively applies the multi-sensor technology to realize vehicle blind area detection and real-time road condition information acquisition, and compared with the blind area detection of a single sensor, the road condition detection accuracy is higher, the detection time is faster, and the safety coefficient is higher.

Description

Vehicle blind area detection device with multi-sensor fusion

Technical Field

The utility model relates to the field of vehicle blind area detection, in particular to a vehicle blind area detection device with multi-sensor fusion.

Background

The fixed blind area range of vehicle is big to and the driving space of driver is fixed, leads to the visual not enough of blind area danger information, and means such as accurate location and danger early warning that need are examined and examined to the barrier inside and outside the car at present are limited, can't carry out full transparent monitoring at the driving in-process, lead to many potential traffic risks to be ignored, constitute the danger source of traffic accident. However, the research of China in the field of blind area detection technology is limited, the blind area detection technology applied to practical vehicles mostly focuses on the blind area detection technology combining camera monitoring and a high-performance master control module, the technology can only ensure that dangers with certain coefficients in a blind area range are eliminated and the function of accurate scanning and early warning is achieved, and the functional requirement of a driver on blind area detection cannot be met.

Disclosure of Invention

In view of the above technical problems, the present invention provides a vehicle blind area detection device with multiple sensors integrated.

The technical scheme of the utility model is as follows:

a vehicle blind area detection device with multiple sensors integrated comprises a master control module, an ultrasonic sensor, an infrared sensor, a visual sensor, a display module, an alarm module and a voice module; the method is characterized in that: the master control module is respectively connected with the ultrasonic sensor, the infrared sensor, the visual sensor, the voice module, the display module and the alarm module.

The master control module comprises an embedded microprocessor, a storage unit, a memory and an interface unit.

The ultrasonic sensor adopts 4 ultrasonic ranging modules supporting noise reduction, and is matched with a plurality of receiving and transmitting separated waterproof probes to work, so that the detected barrier information is rapidly sent to the master control module; the infrared sensor adopts 4 infrared sensors with detection angles more than or equal to 120 degrees, converts received infrared radiation into measurable electric signals, and transmits data to the display module and the alarm module; the vision sensor adopts 2 CCD cameras supporting digital exposure and transmits real-time road condition information data to the display module.

The display module adopts a TFT color touch liquid crystal screen; the alarm module comprises a warning lamp, a buzzer alarm and a text alarm and is controlled by the alarm instruction of the master control module.

The general control module adopts an STM32 embedded microprocessor; the storage unit adopts a FLASH storage chip not lower than 16G; the interface unit comprises a USB interface, an HDMI interface and a 72pin interface.

Compared with the prior art, the utility model has the beneficial technical effects that:

1. the accuracy is higher. The blind areas of the vehicles are detected simultaneously through the multiple sensors, real-time road condition information collected by the multiple sensors is subjected to data fusion in the master control module, and the specific shape, size, distance, motion state, motion speed and the like of the obstacles in the blind areas of the vehicles are accurately measured and calculated.

2. The detection time is faster. The multi-sensor detects the vehicle blind area simultaneously, the master control module carries out multi-data fusion on the real-time road condition information collected by the multi-sensor, the specific shape, size, distance, motion state, motion speed and the like of the obstacle in the vehicle blind area are measured out in the shortest time, and effective road condition data electric signals are provided for the display module and the voice module in time.

3. The safety factor is higher. The vehicle blind area detection device with the multi-sensor fusion timely conveys effective real-time road condition information to a driver, and sends corresponding alarm to the driver through the display module, the voice module and the alarm module under specific conditions.

Drawings

FIG. 1 is a block diagram of the system of the present invention.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples, without however restricting the scope of the utility model to the following examples.

Example (b):

referring to fig. 1, a vehicle blind area detection device with multi-sensor integration comprises a master control module, an ultrasonic sensor, an infrared sensor, a visual sensor, a display module, an alarm module and a voice module; the method is characterized in that: the master control module is respectively connected with the ultrasonic sensor, the infrared sensor, the visual sensor, the voice module, the display module and the alarm module.

The ultrasonic sensor adopts 4 ultrasonic ranging modules supporting noise reduction and is respectively arranged at the left and right side ends of a front bumper and a body of the vehicle and the inner side positions of left and right rear tail lamps of the vehicle. The system works in cooperation with a plurality of receiving and transmitting separated waterproof probes, and rapidly sends detected barrier information to the master control module. The reliability of the detection device is effectively improved. The parameters of the ultrasonic ranging module are as follows: the working voltage DC is 2.4V to 5.5V, the working temperature is-20 ℃ to +70 ℃, the induction angle is less than 15 ℃, and the detection distance is 2cm to 450 cm.

The infrared sensor adopts 4 infrared sensors with detection angles more than or equal to 120 degrees, converts received infrared radiation into measurable electric signals, transmits data to the display module and the alarm module, and achieves the alarm effect. The parameters of the infrared sensor are as follows: the working voltage DC is 4.5-20V, the detection time can be prolonged for 8-200 seconds, and the working temperature can be greatly different.

The vision sensor adopts 2 CCD cameras supporting digital exposure and transmits real-time road condition information data to the display module. The parameters of the CCD camera are as follows: 1/3 "CMOS imager signal system PAL/NTSC, video output 1.0 VP-P75 Ω BNC. The brand new digital exposure function can obtain good image effect under the condition of strong contrast ratio and different light.

The display module adopts a TFT color touch liquid crystal screen; the display module parameters are: resolution 320 × 240, PIN foot: 32PIN and PIN spacing: 2.54 mm.

The alarm module comprises a warning lamp, a buzzer alarm and a text alarm and is controlled by the alarm instruction of the master control module.

The master control module adopts an embedded microprocessor mainly comprising an STM32F103RBT singlechip; the storage unit adopts a FLASH storage chip not lower than 16G; the interface unit comprises a USB interface, an HDMI interface and a 72pin interface.

The working process of the utility model is as follows:

three different sensors of the ultrasonic sensor, the infrared sensor and the visual sensor are used for synchronously detecting the blind areas outside the vehicle, and transmitting the detected real-time road condition information outside the vehicle to the master control module. Real-time monitoring is carried out within the range of blind areas at two ends of the vehicle by the infrared sensor; the vision sensor adopts a CCD camera to acquire the image information of the obstacles. And then the data acquired by the infrared sensor and the vision sensor are transmitted to the master control module in an electric signal form. The master control module performs fusion processing on the acquired data information, transmits a processing result to the alarm module, and sends an alarm instruction to enable the buzzer alarm, the warning lamp and the text alarm of the alarm module to work simultaneously.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims

1. A vehicle blind area detection device with multiple sensors integrated comprises a master control module, an ultrasonic sensor, an infrared sensor, a visual sensor, a display module, an alarm module and a voice module; the method is characterized in that:

the master control module is respectively connected with the ultrasonic sensor, the infrared sensor, the visual sensor, the voice module, the display module and the alarm module; the master control module comprises an embedded microprocessor, a storage unit, a memory and an interface unit.

2. The multi-sensor fused vehicle blind spot detection device according to claim 1, wherein:

3. The multi-sensor fused vehicle blind spot detection device according to claim 1, wherein:

the ultrasonic sensor adopts 4 ultrasonic ranging modules supporting noise reduction;

the infrared sensor adopts 4 infrared sensors with detection angles larger than or equal to 120 degrees;

the vision sensor adopts 2 CCD cameras supporting digital exposure;

the display module adopts a TFT color touch liquid crystal screen;

4. The multi-sensor fused vehicle blind spot detection device according to claim 1 and claim 2, wherein:

the general control module adopts an STM32 framework as an embedded microprocessor;

the storage unit adopts a FLASH storage chip not lower than 16G;

the memory adopts 2 320G SATA solid state disks;

the interface unit comprises a USB interface, an HDMI interface and a 72pin interface.