Summary of the invention
The invention provides a kind of vehicle-mounted alarm set, can judge comparatively accurately that chaufeur reminded chaufeur in fatigue state, thereby effectively reduce the possibility that traffic accident occurs.
A first aspect of the present invention, the vehicle-mounted alarm set that provides a kind of moving velocity based on vehicle to point out, this device comprises:
Speed of a motor vehicle test section, detects the speed of a motor vehicle;
Motoring condition test section, judges that whether vehicle is with constant-speed traveling, detects the interval between vehicle traveling-position and lane when judging vehicle with constant-speed traveling;
Remind efferent, chaufeur is sent to prompting;
Described speed of a motor vehicle test section is connected with described motoring condition test section, and described prompting efferent is connected with described motoring condition test section;
Described speed of a motor vehicle test section sends to described motoring condition test section by the vehicle speed signal detecting, the vehicle speed signal of described motoring condition test section based on from described speed of a motor vehicle test section, judge that whether vehicle is with constant-speed traveling, and detect the traveling-position of vehicle and the interval between lane during with constant-speed traveling at judgement vehicle, when described interval is less than or greater than set threshold value, to described prompting efferent transmitted signal, the signal of described prompting efferent based on described motoring condition test section, sends prompting to chaufeur.
In the possible implementation of the first of first aspect:
The vehicle speed signal of described motoring condition test section based on from described speed of a motor vehicle test section, when the speed of a motor vehicle changing value in specified time is less than speed of a motor vehicle changing value in predefined first threshold or predetermined distance and is less than predefined Second Threshold, judgement vehicle is with constant-speed traveling.
In the possible implementation of the second of first aspect:
Described motoring condition test section detects the interval of vehicle and left side or right side lane, when the interval of described vehicle and left side or right side lane is less than predefined the 3rd threshold value, or while being greater than predefined the 4th threshold value, to described prompting efferent transmitted signal.
In conjunction with the possible implementation of the second of first aspect, in the third possible implementation of first aspect:
Described motoring condition test section comprises tire location test section, detects vehicle tire location and measures the interval between described tire location and lane.
In the 4th kind of possible implementation of first aspect, described device also comprises steering wheel angle test section, is connected with described motoring condition test section, detects vehicle rotating of steering wheel angle;
Described steering wheel angle test section sends to described motoring condition test section by the angle signal detecting, the angle signal of described motoring condition test section based on from described steering wheel angle test section, when when in specified time, the changing value of described rotating of steering wheel angle is less than predefined the 5th threshold value or in predetermined distance, the changing value of described rotating of steering wheel angle is less than predefined the 6th threshold value, judgement vehicle travels with orientation, and detects the traveling-position of vehicle and the interval between lane when judgement vehicle travels with constant-speed traveling and orientation.
In the 5th kind of possible implementation of first aspect:
Described prompting efferent comprises voice announcer, to export the mode of voice signal, to chaufeur, sends prompting.
In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect:
If when vehicle driver is for described voice signal nonreply at the appointed time, described voice announcer improves the volume of described voice signal.
Vehicle-mounted alarm set provided by the invention, when Vehicle Driving Cycle, speed of a motor vehicle test section detects the speed of a motor vehicle, and the vehicle speed signal of detection is sent to motoring condition test section; The vehicle speed signal of motoring condition test section based on from speed of a motor vehicle test section, judge that whether vehicle is with constant-speed traveling, and detect the traveling-position of vehicle and the interval between lane when judging vehicle with constant-speed traveling, while being less than or greater than set threshold value at interval, to reminding efferent transmitted signal; Remind the signal of efferent based on motoring condition test section, chaufeur is sent to prompting, be intended to by the motoring condition of these the two kinds of vehicles of interval between the moving velocity of vehicle and the traveling-position of vehicle and lane, judge the fatigue state that chaufeur is current, thereby can judge comparatively accurately whether chaufeur is reminded in fatigue state, thereby effectively reduce the possibility that traffic accident occurs.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the process of design vehicle-mounted alarm set of the present invention, contriver finds through long-term research, during state at chaufeur in fatigue driving, imbalance due to physiological function and mental function, slack to occurring in the control of vehicle, vehicle may be in the constant-speed traveling state that moving velocity is constant or variation is very small in certain hour, and, chaufeur may can not be controlled at vehicle normal lane scope, vehicle travels deviating from the lane being arranged on track, therefore, if vehicle is at constant-speed traveling and departed from track lane, the very large state that may be in fatigue driving of chaufeur so.
Therefore, research based on above-mentioned is found, contriver has designed vehicle-mounted alarm set of the present invention, be intended to by the motoring condition of these the two kinds of vehicles of interval between the moving velocity of vehicle and the traveling-position of vehicle and lane, judge the state of driving that chaufeur is current, thereby can judge comparatively accurately that chaufeur, whether in fatigue state and reminded, makes chaufeur can access warning and then rests of can stopping, thereby effectively reduces the possibility of generation traffic accident.
The vehicle-mounted alarm set by specific embodiment, the embodiment of the present invention being provided is below elaborated.
As shown in Figure 1, the vehicle-mounted alarm set 200 that the present embodiment provides, is arranged on vehicle, comprising:
Speed of a motor vehicle test section 201, for detection of the speed of a motor vehicle;
Motoring condition test section 202 for judging that whether vehicle is with constant-speed traveling, detects the interval between vehicle traveling-position and lane when judging vehicle with constant-speed traveling;
Remind efferent 203, for chaufeur is sent to prompting;
Speed of a motor vehicle test section 201 is connected with motoring condition test section 202, reminds efferent 203 to be connected with motoring condition test section phase 202;
Speed of a motor vehicle test section 201 sends to motoring condition test section 202 by the vehicle speed signal detecting, the vehicle speed signal of motoring condition test section 202 based on from speed of a motor vehicle test section 201, judge that whether vehicle is with constant-speed traveling, and detect the traveling-position of vehicle and the interval between lane during with constant-speed traveling at judgement vehicle, when interval is less than or greater than set threshold value, to reminding efferent 203 transmitted signals, remind the signal of efferent 203 based on motoring condition test section 202, chaufeur is sent to prompting.
The vehicle-mounted alarm set 200 of the fatigue driving that the embodiment of the present invention provides, when Vehicle Driving Cycle, speed of a motor vehicle test section 201 detects the speed of a motor vehicle, and the vehicle speed signal of detection is sent to motoring condition test section 202; The vehicle speed signal of motoring condition test section 202 based on from speed of a motor vehicle test section 201, judge that whether vehicle is with constant-speed traveling, and detect the traveling-position of vehicle and the interval between lane during with constant-speed traveling at judgement vehicle, when interval is less than or greater than set threshold value, to reminding efferent 203 transmitted signals; Remind the signal of efferent 203 based on motoring condition test section 202, chaufeur is sent to prompting.
As can be seen from above, vehicle-mounted alarm set 200 determines whether reminding chaufeur by the motoring condition of these the two kinds of vehicles of interval between the moving velocity of vehicle and the traveling-position of vehicle and lane.Due to vehicle in constant-speed traveling and and lane between distance be less than or greater than set threshold value, be the traveling-position of vehicle depart from lane time, chaufeur is very large may be in tired state, therefore, vehicle-mounted alarm set 200 is actually comparatively accurately and judges that whether chaufeur is in fatigue state, and when judging chaufeur in fatigue state, chaufeur is reminded, with alerting drivers and impel chaufeur hasten to have a rest, thereby effectively reduce the possibility that traffic accident occurs.
Wherein, optionally, speed of a motor vehicle test section 201 is for detection of the speed of a motor vehicle of vehicle and the vehicle speed signal detecting is sent to motoring condition test section 202, and it can adopt speed sensor, acceleration pick-up, wheel speed sensor etc. or they are combined with, and the present invention does not limit this.
The vehicle speed signal of motoring condition test section 202 based on from speed of a motor vehicle test section 201, judges that whether vehicle is with constant-speed traveling.Concrete, motoring condition test section 202 can judge whether vehicle is constant-speed traveling by following two kinds of modes:
One, the vehicle speed signal of motoring condition test section 202 based on from speed of a motor vehicle test section 201, detects the speed of a motor vehicle changing value in specified time, and the speed of a motor vehicle changing value in specified time is less than predefined first threshold, and judgement vehicle is with constant-speed traveling.
Wherein, specified time can be set to random time, for example 1 minute, 10 minutes, 1 hour etc., and predefined first threshold can be set as less numerical value, such as 0Km/H, 0.1Km/H, 1Km/H, 5Km/H etc., the present invention does not limit this, and those skilled in the art can rule of thumb select arbitrarily with observed data etc.
Its two, the vehicle speed signal of motoring condition test section 202 based on from speed of a motor vehicle test section 201, detects the speed of a motor vehicle changing value in predetermined distance, when the speed of a motor vehicle changing value in predetermined distance is less than predefined first threshold, judgement vehicle is with constant-speed traveling.
Wherein, predetermined distance can be set to any distance, such as 10km, 50km etc., and predefined Second Threshold also can be set as less numerical value, such as 0Km/H, 0.1Km/H, 1Km/H, 5Km/H etc., the present invention does not limit this, and those skilled in the art can rule of thumb select arbitrarily with observed data etc.
In the situation of motoring condition test section 202 judgement vehicles with constant-speed traveling, the traveling-position of vehicle and the interval between lane will be detected, while being less than or greater than set threshold value at described interval, to described prompting efferent transmitted signal.Concrete, motoring condition test section 202 detects the interval of vehicle and left side or right side lane, and judge whether this interval is less than predefined the 3rd threshold value or is greater than predefined the 4th threshold value, when being less than predefined the 3rd threshold value or being greater than predefined the 4th threshold value, to reminding efferent 203 transmitted signals.
Wherein, predefined the 3rd threshold value and the 4th threshold value can arrange according to the interval between the traveling-position of vehicle under normal condition and lane, for example, under normal condition, the traveling-position of vehicle and the distance between lane are 50cm, so, the 3rd threshold value can be set to 30cm, 20cm etc., the 4th threshold value can be set to 60cm, 70cm etc., if the interval of vehicle and left side or right side lane is less than predefined the 3rd threshold value, represent that vehicle has departed from normal traveling-position, in this, be equal to, if the interval of vehicle and left side or right side lane is greater than predefined the 4th threshold value, represent equally that vehicle has departed from normal traveling-position.Be understandable that, the 3rd threshold value and the 4th threshold value can also be worth for other, and the present invention does not limit this, and those skilled in the art can select.
Concrete, motoring condition test section 202 can comprise treater, such as central processor CPU, vehicle-mounted electronic control unit ECU etc., and detect the traveling-position of vehicle and the detection part at the interval between lane.This detection part can be rang sensor, such as acoustic detector etc.Wherein, treater is carried out the judgement of constant speed state, and receives interval information from detection part, carry out the comparison of interval and threshold value, carry out the judgement whether Vehicle Driving Cycle position is offset, and the result of the judgement based on above-mentioned, to described prompting efferent, transmit control signal.
Optionally, in one embodiment of the invention, the traveling-position of vehicle and the interval between lane are specially the tire of vehicle and the interval between lane.As shown in Figure 2, motoring condition test section 202 comprises tire location test section 2021, is used for detecting vehicle tire location and measures the interval between described tire location and lane.Wherein, tire location test section 2021 can adopt acoustic detector, and acoustic detector is for being measured to the interval of lane of a side on tire and left side or right side.
Optionally, in one embodiment of the invention, as shown in Figure 3, car-mounted device 200 also comprises steering wheel angle test section 205, and steering wheel angle test section 205 is connected with motoring condition test section 202, for detection of steering wheel for vehicle rotational angle.Wherein, steering wheel angle test section 205 can adopt angular transducer, and it can be arranged on the suitable position of vehicle, and the present invention does not limit this.
Concrete, steering wheel angle test section 205 sends to motoring condition test section 202 by the angle signal detecting, the angle signal of motoring condition test section 202 based on from steering wheel angle test section 205, when when in specified time, the changing value of rotating of steering wheel angle is less than predefined the 5th threshold value or in predetermined distance, the changing value of rotating of steering wheel angle is less than predefined the 6th threshold value, just can determine that vehicle travels with orientation, and after judgement vehicle travels with constant-speed traveling and orientation, detect the traveling-position of vehicle and the interval between lane.
Wherein, predefined the 5th threshold value and the 6th threshold value can be set to a less value, and such as 1,2,3,5,10 etc., the present invention does not limit.
Remind efferent 203 for chaufeur is sent to prompting, its prompting for chaufeur is not limited to sound prompting, optics prompting etc.
Optionally, in one embodiment of the invention, as shown in Figure 4, remind efferent 203 to comprise voice announcer 2031, to export the mode of voice signal, to chaufeur, send prompting.
Wherein, the voice signal of output can be buzzer, and for example, " dripping ... drip ... ", also can carry out voice message with human language form, for example, " note that you are in fatigue driving state, the rest of please stopping ", and the present invention does not limit at this.
Further, in one embodiment of the invention, if when vehicle driver is for voice signal nonreply at the appointed time, voice announcer 206 can improve the volume of this voice signal further to arouse the attention of chaufeur.
Concrete, at voice announcer 206, carry out after a voice reminder, when if vehicle driver is for voice signal nonreply within a certain period of time, for example vehicle is still in motoring condition, do not stop and have a rest, the mode that voice announcer will be reminded to improve the volume of voice signal, further arouses the attention of chaufeur, makes the chaufeur rest of can stopping.Or, for example chaufeur is not confirmed the voice signal of voice announcer 2031, for example, press acknowledge button to stop the report of voice announcer, and expression has received this prompting, voice announcer 206 will improve the volume of voice signal, the mode that voice announcer will be reminded to improve the volume of voice signal, further arouse the attention of chaufeur, make the chaufeur rest of can stopping, thereby increase the safety of Vehicle Driving Cycle, thereby reduce the generation causing the accident because chaufeur is overtired.
It should be noted that, the vehicle-mounted alarm set 200 of the fatigue driving that the embodiment of the present invention provides, is used in the vehicle travelling on expressway, and the present invention is in this no limit.
Vehicle-mounted alarm set for better explanation the invention process provides, describes with a specific embodiment below.Fig. 5 shows a kind of specific embodiment of vehicle-mounted alarm set.On vehicle, be mounted with car-mounted device 300, car-mounted device 300 specifically comprises the speed sensor 3011 (speed of a motor vehicle test section) for obtaining car speed, for direction of measurement dish angular turn to obtain the angular transducer 3012 (steering wheel angle test section) of vehicle heading, for determining the acoustic detector 3015 (tire location test section) of road location and for the treatment of the treater 3016 (motoring condition test section) of motoring condition; And the phonetic alarm 3017 (prompting efferent) of sounding and reminding to chaufeur.
Treater 3016 and speed sensor 3011, angular transducer 3012 is connected with acoustic detector 3015, speed sensor 3011 is sent to treater 3016 by the speed of a motor vehicle of obtaining and processes, treater 3016 is determined whether constant-speed traveling of vehicle, meanwhile, angular transducer 3012 sends to treater 3016 by the rotating of steering wheel angle of obtaining, treater 3016 is determined vehicle, and whether orientation is travelled, at definite constant speed of vehicle, travel and be not that orientation is travel in the situation that, interval between the traveling-position of the vehicle that treater 3016 obtains from acoustic detector 3015 and lane 3013, treater 3016 is determined the road location of vehicle,
Treater 3016 is also connected with phonetic alarm 3017, if treater 3016 determines that vehicle is in abnormal motoring condition,, determine that constant speed of vehicle and non-directional travel and depart from the situation that lane travels, by phonetic alarm 3017, to chaufeur, send the warning signal of fatigue driving, when vehicle driver is to this voice signal nonreply at the appointed time, voice announcer 3017 improves the volume of voice signal, further to remind chaufeur.
It should be noted that, device embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed on a plurality of network elements.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.In addition, in device embodiment accompanying drawing provided by the invention, the annexation between module represents to have communication connection between them, specifically can be implemented as one or more communication bus or signal wire (SW).Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly comprise that special IC, dedicated cpu, private memory, special-purpose components and parts etc. realize by specialized hardware.Generally, all functions being completed by computer program can realize with corresponding hardware at an easy rate, and the particular hardware structure that is used for realizing same function can be also diversified, such as analogous circuit, digital circuit or private circuit etc.But software program realization is better embodiment under more susceptible for the purpose of the present invention condition.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computing machine, USB flash disk, portable hard drive, read-only memory (ROM) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc., comprise that some instructions are with so that a computer equipment (can be Personal Computer, server, or the network equipment etc.) method described in each embodiment of execution the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.