CN205220511U - Car safe driving assists detecting system - Google Patents
Car safe driving assists detecting system Download PDFInfo
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- CN205220511U CN205220511U CN201521103745.7U CN201521103745U CN205220511U CN 205220511 U CN205220511 U CN 205220511U CN 201521103745 U CN201521103745 U CN 201521103745U CN 205220511 U CN205220511 U CN 205220511U
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Abstract
The utility model provides a car safe driving assists detecting system, it includes a plurality of microwave radar sensors, digital signal processor, display system, control circuit and a plurality of image sensor, each image sensor changes the visual angle direction through driving motor drive respectively, and each microwave radar sensor real -time supervision vehicle is the data such as vehicle velocity in the barrier position in the certain limit and near all around, through the control of digital signal processor to driving motor, control circuit, shows the image that image sensor acquireed through display system. The utility model discloses a barrier positional information control image sensor's that microwave radar sensors monitor arrived visual angle makes a singly image sensor's visual angle range maximize, through the demonstration of blind area around the minimum camera realization vehicle, utilize the relation between each emit antenna can simulate more receiving antenna passageways, make the resolution ratio of angular surveying high more, can not cause showing of circuit cost to increase again simultaneously.
Description
Technical field
The utility model relates to technical field of automobile control, particularly a kind of full-sized car safe driving assisted detection system and method.
Background technology
China's traffic accident in recent years takes place frequently, cause casualties and property damage, severe social situations makes people more and more pay attention to automotive safety, in vehicle traveling process, major part accident all causes because driver's operation is improper, because driver attention does not concentrate, the fatigue objective factor such as to drive exists, when vehicle-surroundings environment causes danger situation, chaufeur is not caused to note, cause misoperation, generation accident, particularly full-sized car, because vehicle body is longer, angular field of view is narrow, vehicle is when turning, interiorly difference is taken turns owing to existing, its turn radius is larger, simultaneously due to the existence of side direction vision dead zone, very easily there is grazing accident with both sides vehicle and pedestrian.
In normal driving conditions, because full size vehicle car body is longer, range of visibility is narrow, not easily observe outside vehicle situation, particularly wind and snow misty rain weather and dark night middle rolling car, chaufeur in preparation lane change, when overtaking other vehicles, can not correctly judge vehicle outside situation, cause giving more sustained attention danger potential in blind area.Frequent meeting, because judging the safety distance of inaccurate doubling and fearing hand fear pin, irresolute, gently then loses the best opportunity that doubling is overtaken other vehicles, heavy then lead to traffic accidents such as scratching, knock into the back.
On the other hand, along with the fast development of computer technology, communication, Eltec, utilize Eltec to carry out detection vehicle drive environment, prompting driver's operation is improper, and prevention traffic accident occurs to become possibility.Most current vehicle adopts super sonic, laser, infrared ray etc. to measure the distance of obstacle and automobile.When ultrasonic echo mode is measured.Sound wave is launched by popping one's head in and is accepted, and sound wave runs with the velocity of sound because sound wave have reflected, the phenomenon such as refraction exists, therefore, ultrasonic radar is disturbed more, does not have good survey precision to measurement obstacle.The interference that microwave radar mode is subject to is much smaller, and microwave radar wave line of propagation is fine, and speed equals the light velocity.Radar wave runs with the light velocity, and microwave runs into vehicle and is reflected back immediately, then is converted to thing position signal by electronic unit, guarantees stable in very short time and accurately measures, having measuring speed fast, precision advantages of higher.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of vehicle security drive assisted detection system, it comprises some microwave radar sensors, digital signal processor, display system, control circuit and some imageing sensors, and described each imageing sensor drives respectively by drive motor and changes view directions;
Obstacle Position and speed data for the Obstacle Position in Real-Time Monitoring vehicle's surroundings certain limit and speed data, and are sent to described digital signal processor by described each microwave radar sensor;
Described digital signal processor sends one according to the position data of obstacle and controls signal to the imageing sensor corresponding with the position of obstacle and drive motor thereof, described drive motor changes the visual angle of described imageing sensor according to the position of obstacle, described imageing sensor obtains the real-time imaging of obstacle, and real-time imaging is sent to described display system and shows;
Described digital signal processor sends alerting signal to described control circuit simultaneously, and described control circuit performs alarm operation.
Preferably, described each microwave radar sensor is located at the diverse location of the forward and backward of vehicle and both sides respectively.
Preferably, described each microwave radar sensor is controlled by Radar interface circuit, described Radar interface circuit is connected with described digital signal processor, described each microwave radar sensors being operative under different FM and mode of operation, and can configure different launch and accept passages according to investigative range.
Preferably, described microwave radar sensor has multiple transmission channel and multiple receiving cable, by by described each receiving cable respectively by single-ended connection stand-alone antenna, described transmission channel is connected multiple emitting antenna respectively simultaneously, realizes the multiple-input, multiple-output function of microwave radar sensor.
Preferably, the intermediate-freuqncy signal of described microwave radar sensor output is by being sent to described DSP unit after bandpass filter process.
Preferably, vehicle's surroundings position is divided into multiple blind spot region, the corresponding imageing sensor in described each blind spot region region; Described digital signal processor according to described Obstacle Position data disturbance in judgement thing place blind spot region, and sends a control signal to imageing sensor and the drive motor thereof of corresponding blind spot region.
Preferably, described each imageing sensor has an absolute visual field scope under drive motor drives, and described each blind spot region is within the scope of the absolute visual field of correspondence image sensor.
Preferably, described each imageing sensor completes both view angle adjustment respectively by driving drive motor, and described driving drive motor completes the level of described imageing sensor, the both view angle adjustment of vertical direction; Described imageing sensor and electric machine controller and vehicle body steering swivel system form linked system, and when vehicle carries out handling maneuver, drive motor can the angle of adjustment imageing sensor automatically, automatically monitors blind spot.
The utility model has following beneficial effect:
The utility model obtains the Position And Velocity information of obstacle by microwave radar sensor, and give the alarm in time, the visual angle of the Obstacle Position information control chart image-position sensor simultaneously arrived by microwave radar Sensor monitoring, the angular field of view of single image sensor is maximized, is realized the display of vehicle periphery blind area by minimum camera;
The microwave radar sensor that the utility model provides utilizes the relation between different transmit antennas can simulate more receiving wire passage, and more by receiving wire number, the resolution of measurement of angle is higher, can not cause again the remarkable increase of circuit cost simultaneously.
Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The vehicle security drive assisted detection system structural representation that Fig. 1 provides for the utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model embodiment provides a kind of vehicle security drive assisted detection system, it comprises some microwave radar sensors, digital signal processor 5, display system 4, control circuit 6 and some imageing sensors, and described each imageing sensor drives respectively by drive motor and changes view directions; Present embodiments provide N number of radar sensor, be respectively radar sensor 11, radar sensor 12... radar sensor 1N, respectively connecting interface circuit 2 and bandpass filter 3, interface circuit 2 and bandpass filter 3 linking number word signal processor 1 respectively; Imageing sensor is N number of, and each imageing sensor is connected with drive motor, and imageing sensor is respectively imageing sensor 21, imageing sensor 22... imageing sensor 2N, and drive motor is respectively drive motor 31, drive motor 32... drive motor 3N; In the present embodiment, imageing sensor is connected with drive motor by mounting bracket, and display system 4 comprises middle control read-out.
In the present embodiment, microwave radar sensor is located at the diverse location of the forward and backward of vehicle and both sides respectively, microwave radar sensor is usually used in detecting vehicle ambient environment, as anti-collision warning, adaptive cruise, automatically assist with car, lane change, often kind of application mode emphasis is different, its cardinal principle is the parameters such as the distance by measurement target, relative velocity, angular dimension, number.The present embodiment adopts 4 passage 24GHz trailer-mounted radar mmic chips, integrated form multichannel receiver low-converter has low-noise factor, low-power consumption, in four sheets of this device, receiving cable adopts simple single-ended connection to be connected with four stand-alone antennas, thus simplify radio-frequency transmission line design, this receiver down converter directly can process four Received signal strength simultaneously, to produce high quality, high-amplitude baseband signal, relative to Distance geometry speed, the phase difference that the time difference that target bearing angle mainly arrives different antennae according to echoed signal causes is calculated.Receiving wire number is more, and the resolution of measurement of angle is higher, but the increase of receiving wire number makes board area increase.The present embodiment utilizes the relation between different transmit antennas can simulate more receiving wire passage, the remarkable increase of board area can not be caused again simultaneously, the trailer-mounted radar mmic chip that the present embodiment provides supports that 24 are received passage, the emitting antenna that 2 transmission channels both can connect 2 different FOV realizes bimodulus and covers, also can connect 2 identical emitting antennas and realize MIMO function, namely be equal to 18 effect received.Its transmitting-receiving configuration can be configured by interface circuit according to different applied environments, utilizes digital beam forming technique the precision of measurement of angle can be improved further simultaneously.
In the present embodiment, each imageing sensor is installed on below protruding point outside left and right vehicle wheel and vehicle mirrors respectively, be used for obtaining the image information of different blind spot region, it is made up of a CCD camera and step machine drive motor and control signal circuit, in the present embodiment, digital signal processor 1 is sent to that the control signal of CCD camera and step machine drive motor produces by control signal circuit, control signal circuit gathers the signal of CCD camera acquisition and is sent to display system display by digital signal processor 1, CCD camera rotational angle can be divided into normal position and level, the angle of vertical direction rotates, so that detect different angulars field of view, the behind of CCD camera is provided with drive system, it is by two electric motor drive systems, the upper lower angle rotary motion of a control CCD, the level angle motion of another set of control CCD.
Described digital signal processor passes through the real-time reception travel condition of vehicle information of control circuit interface, as turn sign, astern signal etc., when digital signal processor receives steering signal of vehicle, perceive vehicle and carry out handling maneuver, now drive motor can adjust the angle of imageing sensor automatically, automatically to turning to blind spot to monitor.And picture signal is sent to image display system.When digital signal processor receives astern signal, the imageing sensor of vehicle rear can be automatically switched to, vehicle rear is monitored.
Obstacle Position and speed data for the Obstacle Position in Real-Time Monitoring vehicle's surroundings certain limit and speed data, and are sent to described digital signal processor by described each microwave radar sensor;
Described digital signal processor transmits control signal 7 to the imageing sensor corresponding with the position of obstacle and drive motor thereof according to the position data of obstacle, described drive motor changes the visual angle of described imageing sensor according to the position of obstacle, described imageing sensor obtains the real-time imaging of obstacle, and real-time imaging is sent to display system 4 and shows;
In the present embodiment, vehicle's surroundings position is divided into multiple blind spot region, the corresponding imageing sensor in described each blind spot region region; Described digital signal processor according to described Obstacle Position data disturbance in judgement thing place blind spot region, and transmits control signal 7 to the imageing sensor of corresponding blind spot region and drive motor thereof.
Wherein each imageing sensor has an absolute visual field scope under drive motor drives, and described each blind spot region is within the scope of the absolute visual field of correspondence image sensor.By lower angle rotary motion and level angle rotary motion on drive motor control chart image-position sensor, achieve the absolute visual field scope of single image sensor, so just can be realized the monitoring of blind area by minimum imageing sensor;
Digital signal processor 5 sends alerting signal to control circuit 6 simultaneously, and control circuit 6 performs alarm operation.
The utility model embodiment provides a kind of vehicle security drive aided detection method, it is when running velocity reaches a setting value, digital signal processor 5 one actuation signals given by control circuit 6, digital signal processor 5 drives each microwave radar sensor to start working by interface circuit 2, when obstacle is in the induction range of arbitrary microwave radar sensor, the position data of the obstacle that digital signal processor 5 detects according to microwave radar sensor exports control signal 7, the imageing sensor that control signal 7 drives the position of described obstacle corresponding and drive motor thereof, the angle of described drive motor adjustment imageing sensor, the picture signal of current position is gathered by control signal circuit, and show on the display system, performed by control circuit 6 simultaneously and warn operation accordingly.
Described microwave radar sensor adjusts induction range according to running velocity, and the distance of reaction of described microwave radar sensor is directly proportional to running velocity.
The utility model obtains the Position And Velocity information of obstacle by microwave radar sensor, and give the alarm in time, the visual angle of the Obstacle Position information control chart image-position sensor simultaneously arrived by microwave radar Sensor monitoring, the angular field of view of single image sensor is maximized, is realized the display of vehicle periphery blind area by minimum camera;
The microwave radar sensor that the utility model provides utilizes the relation between different transmit antennas can simulate more receiving wire passage, more by receiving wire number, the resolution of measurement of angle is higher, can not cause again the remarkable increase of board area simultaneously.
Disclosed the utility model preferred embodiment just sets forth the utility model for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the detailed description of the invention that this utility model is only described yet.Obviously, according to the content of this specification sheets, can make many modifications and variations.This specification sheets is chosen and is specifically described these embodiments, is to explain principle of the present utility model and practical application better, thus makes art technical personnel understand well and to utilize the utility model.The utility model is only subject to the restriction of claims and four corner and equivalent.
Claims (8)
1. a vehicle security drive assisted detection system, it is characterized in that, comprise some microwave radar sensors, digital signal processor, display system, control circuit and some imageing sensors, described each imageing sensor drives respectively by drive motor and changes view directions;
Obstacle Position and speed data for the Obstacle Position in Real-Time Monitoring vehicle's surroundings certain limit and speed data, and are sent to described digital signal processor by described each microwave radar sensor;
Described digital signal processor sends one according to the position data of obstacle and controls signal to the imageing sensor corresponding with the position of obstacle and drive motor thereof, described drive motor changes the visual angle of described imageing sensor according to the position of obstacle, described imageing sensor obtains the real-time imaging of obstacle, and real-time imaging is sent to described display system and shows;
Described digital signal processor sends alerting signal to described control circuit simultaneously, and described control circuit performs alarm operation.
2. vehicle security drive assisted detection system as claimed in claim 1, it is characterized in that, described each microwave radar sensor is located at the diverse location of the forward and backward of vehicle and both sides respectively.
3. vehicle security drive assisted detection system as claimed in claim 2, it is characterized in that, described each microwave radar sensor is controlled by Radar interface circuit, described Radar interface circuit is connected with described digital signal processor, described each microwave radar sensors being operative under different FM and mode of operation, and can configure different launch and accept passages according to investigative range.
4. vehicle security drive assisted detection system as claimed in claim 2, it is characterized in that, described microwave radar sensor has multiple transmission channel and multiple receiving cable, by by described each receiving cable respectively by single-ended connection stand-alone antenna, described transmission channel is connected multiple emitting antenna respectively simultaneously, realize the multiple-input, multiple-output function of microwave radar sensor.
5. vehicle security drive assisted detection system as claimed in claim 4, is characterized in that, the intermediate-freuqncy signal that described microwave radar sensor exports is by being sent to described DSP unit after bandpass filter process.
6. vehicle security drive assisted detection system as claimed in claim 1, it is characterized in that, vehicle's surroundings position is divided into multiple blind spot region, the corresponding imageing sensor of described each blind spot region; Described digital signal processor according to described Obstacle Position data disturbance in judgement thing place blind spot region, and sends a control signal to imageing sensor and the drive motor thereof of corresponding blind spot region.
7. vehicle security drive assisted detection system as claimed in claim 6, is characterized in that, described each imageing sensor has an absolute visual field scope under drive motor drives, and described each blind spot region is within the scope of the absolute visual field of correspondence image sensor.
8. vehicle security drive assisted detection system as claimed in claim 7, it is characterized in that, described each imageing sensor completes both view angle adjustment respectively by driving drive motor, and described driving drive motor completes the level of described imageing sensor, the both view angle adjustment of vertical direction; Described imageing sensor and electric machine controller and vehicle body steering swivel system form linked system, and when vehicle carries out handling maneuver, drive motor can the angle of adjustment imageing sensor automatically, automatically monitors blind spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103745.7U CN205220511U (en) | 2015-12-23 | 2015-12-23 | Car safe driving assists detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103745.7U CN205220511U (en) | 2015-12-23 | 2015-12-23 | Car safe driving assists detecting system |
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| CN205220511U true CN205220511U (en) | 2016-05-11 |
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| CN201521103745.7U Expired - Fee Related CN205220511U (en) | 2015-12-23 | 2015-12-23 | Car safe driving assists detecting system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398389A (en) * | 2015-12-23 | 2016-03-16 | 安徽安凯汽车股份有限公司 | Automobile safe driving auxiliary detection system and method |
| CN106382918A (en) * | 2016-08-31 | 2017-02-08 | 胡钊政 | Three-dimensional visual sensor |
| WO2018014305A1 (en) * | 2016-07-21 | 2018-01-25 | 武汉芯泰科技有限公司 | Multi-wave detection and imaging system |
| WO2018014457A1 (en) * | 2016-07-22 | 2018-01-25 | 中兴通讯股份有限公司 | Driving safety control method and device, and storage medium |
| CN115402236A (en) * | 2022-09-19 | 2022-11-29 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted sensor position monitoring system and method |
-
2015
- 2015-12-23 CN CN201521103745.7U patent/CN205220511U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398389A (en) * | 2015-12-23 | 2016-03-16 | 安徽安凯汽车股份有限公司 | Automobile safe driving auxiliary detection system and method |
| CN105398389B (en) * | 2015-12-23 | 2018-08-14 | 安徽安凯汽车股份有限公司 | A kind of vehicle security drive assisted detection system and method |
| WO2018014305A1 (en) * | 2016-07-21 | 2018-01-25 | 武汉芯泰科技有限公司 | Multi-wave detection and imaging system |
| WO2018014457A1 (en) * | 2016-07-22 | 2018-01-25 | 中兴通讯股份有限公司 | Driving safety control method and device, and storage medium |
| CN106382918A (en) * | 2016-08-31 | 2017-02-08 | 胡钊政 | Three-dimensional visual sensor |
| CN115402236A (en) * | 2022-09-19 | 2022-11-29 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted sensor position monitoring system and method |
| CN115402236B (en) * | 2022-09-19 | 2024-05-14 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted sensor position monitoring system and method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20191223 |