CN103332144A - Pure electric vehicle and pedestrian monitoring and reminding method and system based on multi-sensor combination - Google Patents
Pure electric vehicle and pedestrian monitoring and reminding method and system based on multi-sensor combination Download PDFInfo
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- CN103332144A CN103332144A CN2013102420135A CN201310242013A CN103332144A CN 103332144 A CN103332144 A CN 103332144A CN 2013102420135 A CN2013102420135 A CN 2013102420135A CN 201310242013 A CN201310242013 A CN 201310242013A CN 103332144 A CN103332144 A CN 103332144A
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Abstract
The invention relates to a pure electric vehicle and pedestrian monitoring and reminding method and system based on a multi-sensor combination. The method comprises the following steps of: (1) decomposing areas influencing pedestrian safety into a plurality of danger classes according to the distance designs distance from a vehicle; (2) performing combination monitoring on areas with the danger classes by adopting a plurality of body recognition sensors; (3) processing data monitored by the sensors, and judging out the danger class of the area in which pedestrians are located; and (4) performing voice prompt and alarm on each danger class by using different voices. According to the pedestrian-vehicle distance monitoring and recognition method based on the multi-sensor combination provided by the invention, the problem that the distance cannot be measured while body signals can be detected by adopting a traditional body sensors is successfully solved, and comprehensive monitoring is realized on danger areas. Moreover, the design that the alarm is given by adopting different sounds is adopted by the pedestrian-vehicle distance monitoring and recognition method based on the multi-sensor combination provided by the invention, so that the problem that potential safety hazards occur to the pedestrians due to the fact that the noise of the pure electric vehicle is smaller and the pedestrians are insensitive to the vehicle getting close to the pedestrians.
Description
Technical field
The present invention relates to Vehicle Engineering and vehicle electric field, more particularly, the present invention relates to a kind of pure electric automobile passerby based on the multisensor combination and monitor based reminding method and system.
Background technology
Along with the whole world to energy-conservation and enhancing environmental consciousness, pure electric automobile becomes the final developing direction in new-energy automobile field gradually, both at home and abroad to all unusual attention of new-energy automobile industry.Reached a certain scale at national electronlmobils such as the U.S., Japan, France, Britain, Singapore, China " 12 " program for the development of science and technology proposes:, implement in full " pure electricity drives " technology shifts strategy in the new-energy automobile industry.Implement new-energy automobile scientific and technological industrialization engineering.
An advantage of pure electric automobile is exactly the motor roar that driving the time does not have common vehicle, thereby noise is little during its driving, but the pedestrian of this advantage on but satisfying the need caused potential danger.Such as when pedestrian on the road or driver do not note, perhaps the pedestrian may come from the side, just may cause potential danger.
For each car company, performance can be placed on second, and is primary but secure context always is placed to, and car company and expert are in the safety problem of putting forth effort to study electronlmobil both at home and abroad.
But also both can not monitor out human body signal simultaneously both at home and abroad at present, can directly judge the sensor of its distance again, often can only take into account one.
Summary of the invention
Purpose of the present invention aims to provide a kind of method and system that can monitor and can judge pedestrian position, distance simultaneously, do not have the motor roar of orthodox car to solve it because of driving, make passerby be unaware of vehicle near and potential safety hazard that the people that satisfies the need forms.
For reaching above purpose, the present invention has adopted following technical scheme.
The invention provides a kind of pure electric automobile passerby based on the multisensor combination and monitor based reminding method, may further comprise the steps:
(1) zone that will influence pedestrains safety is decomposed into a plurality of hazard levels according to the distance design of distance automobile;
(2) select for use a plurality of human body identification sensors that monitoring is made up in (1) described a plurality of hazard levels zone, each hazard level zone uses a human body identification sensor to monitor at least; The monitoring distance of each human body identification sensor and the regional corresponding of its hazard level of monitoring and the adjusting by sensitivity arrange;
(3) data that a plurality of human body sensor monitorings are obtained are handled, and judge the hazard level in pedestrian zone of living in;
(4) adopt alternative sounds to carry out voice suggestion and warning to each hazard level.
Preferably, a plurality of human body identification sensors described in the step (2) place high as far as possible position, car body outside, and the monitored area of each human body identification sensor all becomes fan-shaped.
Preferably, a plurality of human body identification sensors described in the step (2) are arranged in front side, left side and the right side of car body outside respectively.
The present invention also provides a kind of pure electric automobile passerby based on the multisensor combination to monitor system for prompting, comprises sensor monitoring modular, signal processing module, main control module, demonstration and alarm module, communication module, manual control module, it is characterized in that:
Described sensor monitoring modular comprises a plurality of human body identification sensors, realizes different monitored areas by the sensitivity of regulating each human body identification sensor, and described human body identification sensor is arranged in high as far as possible position, car body outside respectively; Each human body identification sensor in the described sensor monitoring modular all is connected by electric signal with signal processing module;
Described main control module, the information of a plurality of human body identification sensors after the reception signal processing module is handled, hazard level is judged in identification pedestrian orientation, and sends corresponding control signal and give demonstration and alarm module;
Described demonstration and alarm module receive the instruction of main control module, show the concrete orientation of passerby, and send alternative sounds prompting and warning according to different hazard levels.
Preferably, described human body identification sensor is selected from infrared pickoff, pyroelectric sensor, human body detection sensor, human body proximity sensor, human motion sensor.
Preferably, described main control module is selected from micro controller system, DSP, PLC, ARM.
Owing to adopted above technical scheme, the solution of success of the present invention existing human body sensor can only detect human body signal, and can not be used for the problem of measuring distance, and realize the comprehensive monitoring to the hazardous location.The present invention adopts the design that alternative sounds is reported to the police in addition, has also solved because its driving does not have the motor roar of orthodox car, makes passerby be unaware of the close of vehicle and the potential safety hazard of the people's formation of satisfying the need.
Description of drawings
Fig. 1 is the structure principle chart that this pure electric automobile passerby based on the multisensor combination monitors based reminding method and system.
Fig. 2 is the software flow pattern that this pure electric automobile passerby based on the multisensor combination monitors system for prompting embodiment.
Fig. 3 is the human body monitoring hazardous location division scheme drawing that this pure electric automobile passerby based on the multisensor combination monitors based reminding method.
The specific embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is described further, but the present invention is not limited to these embodiment.
Fig. 1 has provided the structure principle chart that the pure electric automobile passerby who the present invention is based on the multisensor combination monitors based reminding method and system.
The zone that method among the present invention at first will influence pedestrains safety is decomposed into a plurality of hazard levels according to the distance design of distance automobile, select for use a plurality of human body identification sensors that monitoring is made up in described a plurality of hazard levels zone then, monitor with a human body identification sensor in each hazard level zone.The monitoring distance of each human body identification sensor is regulated by the setting of sensitivity, and decide as required its installation site, can be arranged in the high as far as possible position in front side, left side and right side of car body outside respectively.By system the data that a plurality of human body sensors obtain are handled, judged hazard level, adopt alternative sounds to carry out voice suggestion and warning to each hazard level then.System among the present invention comprises sensor monitoring modular, signal processing module, main control module, demonstration and alarm module, communication module, manual control module.Wherein the sensor monitoring modular comprises a plurality of human body identification sensors.
Fig. 3 has provided the hazardous location that one group of sensor cooperates and has divided scheme drawing, organizes sensor more and is used the hazardous location that can make pure electric automobile and realizes comprehensive monitoring.
As shown in Figure 3, what adopt among this embodiment is three sensor groups that the human body detection sensor that is installed in pure electric vehicle left hand external top matches, directional bearing to the left, hazard level is set three hazard levels, the hazard level I is 10m, the hazard level II is 6m, the hazard level III is 3m, be responsible for the monitoring in corresponding hazard level zone by sensor I, sensor II, sensor III respectively, be the pedestrian in sensor I monitoring hazard level I zone, the pedestrian in sensor II monitoring hazard level II zone, the pedestrian in sensor III monitoring hazard level III zone.
When sensor is human body detection sensor when monitoring human body signal, this signal is to deliver to main control chip after signal processing circuit is handled through signal processing module, and used main control module is Freescale micro controller system MC9S12XET256 among this embodiment.
According to the signal difference that sensor transmits, main control module is that main control chip transmits control signal after corresponding judgment processing to demonstration and alarm module, thus the system of realization hazard level difference, the alarm sound difference.
When having only the sensor I to monitor passerby, the sensor monitoring modular sends to main control module with this signal after signal processing module is handled be main control singlechip, main control singlechip determines by the algorithm of simple medium filtering whether this signal is true, if very then send corresponding control signal to showing and alarm module, this demonstration and alarm module note in the 10 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound I.
When the sensor II has also monitored human body signal, main control singlechip may receive the two paths of signals from sensor I and sensor II, through simple median filtering algorithm, judge whether the signal that sensor I and sensor II monitor is true, if all be true, then send corresponding control signal to showing and alarm module, this demonstration and alarm module note in the 6 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound II; If sensor I signal is true, the sensor II is not true, then sends corresponding control signal to showing and alarm module, and this demonstration and alarm module note in the 10 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound I; If be not true, main control singlechip does not then send any signal, and demonstration and alarm module do not respond accordingly.
When the sensor III has also monitored human body signal, signal output is arranged, this moment, main control singlechip may receive three road signals from sensor I, sensor II and sensor III, through simple median filtering algorithm, judge whether the signal that sensor I, sensor II and sensor III monitor is true, if be true all, then send corresponding control signal to showing and alarm module, this demonstration and alarm module note in the 3 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound III; If sensor I and sensor II signal are true, the sensor III is not true, then send corresponding control signal to showing and alarm module, this demonstration and alarm module note in the 6 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound II; If sensor I signal is true, sensor II and sensor III are not true, then send corresponding control signal to showing and alarm module, this demonstration and alarm module note in the 10 meters scopes in left side the pedestrian being arranged to Che Nei driver's voice suggestion, to the goers outside vehicle alarm of blowing a whistle, corresponding alarm sound I; If be not true, main control singlechip does not then send any signal, and demonstration and alarm module do not respond accordingly.
When main control module monitored manual releasing alerting signal that manual control module sends or sensor monitoring module monitors less than human body signal, system resetted, and reported to the police to show with the orientation and to remove.
Shown in Figure 2 is the diagram of circuit of this enforcement use-case.As shown in Figure 2, after system brings into operation, at first it is carried out initialization, read the signal of each sensor then, and judged whether then constantly not read human body signal if having, if human body signal is arranged, determine it is the signal of which road sensor, thereby carried out the judgement of orientation (as: front, rear, left and right) judgement and hazard level; After judging the orientation and hazard level of human body, micro controller system then sends corresponding signal to warning driving circuit and display driver circuit in demonstration and the alarm module, thereby realizes the audio alert prompting; After the manual releasing alerting signal that system monitoring sends to manual control module, system then reenters the monitoring to sensor signal, so moves in circles.
The number of sensor groups is decided by needs among the present invention, and the installation site of sensor groups can be installed in the position all around on the pure electric automobile.
Claims (6)
1. the pure electric automobile passerby based on the multisensor combination monitors based reminding method, it is characterized in that may further comprise the steps:
(1) zone that will influence pedestrains safety is decomposed into a plurality of hazard levels according to the distance design of distance automobile;
(2) select for use a plurality of human body identification sensors that monitoring is made up in (1) described a plurality of hazard levels zone, each hazard level zone uses a human body identification sensor to monitor at least; The monitoring distance of each human body identification sensor and the regional corresponding of its hazard level of monitoring and the adjusting by sensitivity arrange;
(3) data that a plurality of human body sensor monitorings are obtained are handled, and judge the hazard level in pedestrian zone of living in;
(4) adopt alternative sounds to carry out voice suggestion and warning to each hazard level.
2. a kind of pure electric automobile passerby based on the multisensor combination according to claim 1 monitors based reminding method, it is characterized in that: a plurality of human body identification sensors described in the step (2) place high as far as possible position, car body outside, and the monitored area of each human body identification sensor all becomes fan-shaped.
3. a kind of pure electric automobile passerby based on the multisensor combination according to claim 1 and 2 monitors based reminding method, and it is characterized in that: a plurality of human body identification sensors described in the step (2) are arranged in front side, left side and the right side of car body outside respectively.
4. the pure electric automobile passerby based on the multisensor combination monitors system for prompting, comprises sensor monitoring modular, signal processing module, main control module, demonstration and alarm module, communication module, manual control module, it is characterized in that:
Described sensor monitoring modular comprises a plurality of human body identification sensors, realizes different monitored areas by the sensitivity of regulating each human body identification sensor, and described human body identification sensor is arranged in high as far as possible position, car body outside respectively; Each human body identification sensor in the described sensor monitoring modular all is connected by electric signal with signal processing module;
Described main control module, the information of a plurality of human body identification sensors after the reception signal processing module is handled, hazard level is judged in identification pedestrian orientation, and sends corresponding control signal and give demonstration and alarm module;
Described demonstration and alarm module receive the instruction of main control module, show the concrete orientation of passerby, and send alternative sounds prompting and warning according to different hazard levels.
5. a kind of pure electric automobile passerby based on the multisensor combination according to claim 4 monitors system for prompting, and it is characterized in that: described human body identification sensor is selected from infrared pickoff, pyroelectric sensor, human body detection sensor, human body proximity sensor, human motion sensor.
6. a kind of pure electric automobile passerby based on the multisensor combination according to claim 4 monitors system for prompting, and it is characterized in that: described main control module is selected from micro controller system, DSP, PLC, ARM.
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Cited By (5)
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| CN104202720A (en) * | 2014-08-19 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Method and system for realizing position monitoring alarm |
| CN105438063A (en) * | 2015-11-16 | 2016-03-30 | 北京长安汽车工程技术研究有限责任公司 | Warning system and method |
| CN109927626A (en) * | 2017-12-15 | 2019-06-25 | 宝沃汽车（中国）有限公司 | Detection method, system and the vehicle of target pedestrian |
| CN110979176A (en) * | 2019-11-28 | 2020-04-10 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted warning method and system for reminding pedestrians |
| CN106114352B (en) * | 2016-06-30 | 2022-02-11 | 智车优行科技（北京）有限公司 | Warning method and device based on electric vehicle and vehicle |
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| CN103332144B (en) | 2016-12-28 |
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