CN108961803A

CN108961803A - Vehicle drive assisting method, device, system and terminal device

Info

Publication number: CN108961803A
Application number: CN201710354680.0A
Authority: CN
Inventors: 于欣
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-05-18
Filing date: 2017-05-18
Publication date: 2018-12-07
Also published as: WO2018210050A1

Abstract

The invention discloses a kind of vehicle drive assisting method, device, system and terminal devices, this method comprises: obtaining the traffic information at vehicle front crossing, and the traffic route of vehicle are selected according to the traffic information；Wherein, the traffic information of the junction ahead includes the traffic information of road of being connected with the junction ahead；According to the traffic route, acquisition is set to the traffic lights information that the traffic route is corresponded in the traffic lights of the junction ahead；The driving status of vehicle is obtained, and is suggested according to the traffic lights information and driving status output driving.The invention avoids drivers not to know each road conditions when facing crossing and drive vehicle and fall into congestion road conditions, and can cross crossing suggesting driver safety, the efficient vehicle that drives later, saves the quality time of driver and passenger in vehicle.

Description

Vehicle drive assisting method, device, system and terminal device

Technical field

The present invention relates to vehicle drive technical field more particularly to a kind of vehicle drive assisting method, device, system and ends End equipment.

Background technique

With the fast development of science and technology and being constantly progressive for economy, China's car ownership continuous rise, the popularization of automobile It popularizes while facilitating resident trip, also brings traffic congestion, the problem of traffic accident at intersection takes place frequently.

In the prior art, vehicle driving at the parting of the ways when, can not judge the road conditions in which direction in crossroad compared with It is excellent, fault is easy to appear in the case where driver rule of thumb judges, and cause the predicament that vehicle is fallen into congestion road conditions.

Summary of the invention

The main purpose of the present invention is to provide a kind of vehicle drive assisting method, device, system and terminal devices, it is intended to Solve the problems, such as that vehicle does not know each road conditions when facing crossing and falls into congestion road conditions.

To achieve the above object, a kind of vehicle drive assisting method provided by the invention, the vehicle drive assisting method Include:

The traffic information at vehicle front crossing is obtained, and plans the traffic route of vehicle according to the traffic information；Wherein, The traffic information of the junction ahead includes the traffic information of road of being connected with the junction ahead；

According to the traffic route, acquisition, which is set in the traffic lights of the junction ahead, corresponds to the red of the traffic route Green light information；

The driving status of vehicle is obtained, and is suggested according to the traffic lights information and driving status output driving.

Optionally, the traffic information for obtaining vehicle front crossing, and according to the row of traffic information planning vehicle The step of bus or train route line includes:

It obtains and is located at the traffic information that other vehicles that vehicle front crossing is connected on road issue；

According to the traffic information that other vehicles issue, the road conditions result for road of determining to be connected with the junction ahead；

According to the road conditions as a result, the traffic route of planning vehicle.

Optionally, the traffic information issued according to other vehicles, determines the road that is connected with the junction ahead The step of road conditions result includes:

Whether the traffic information that other vehicles that judgement is located at the connected road of the junction ahead report is congestion road conditions letter Breath；

If being located at same road and the vehicle fleet size of congestion traffic information being reported to reach preset quantity, it is determined that the road Road conditions result is congestion road conditions, and then the road conditions result for each road of determining to be connected with the junction ahead.

Optionally, the vehicle drive assisting method includes:

The driving information that vehicle is obtained based on vehicle-mounted OBD interface is presently in section according to driving information acquisition vehicle and gathered around The traffic information of stifled situation, and traffic information is broadcasted to vehicle-surroundings.

Optionally, described according to the traffic route, acquisition is set in the traffic lights of the junction ahead described in correspondence The step of traffic lights information of traffic route includes:

Asking for the traffic lights information for obtaining the corresponding traffic route is issued to the traffic lights for being set to the junction ahead It asks；

Obtain the traffic lights information that the traffic lights are issued according to the request；

Export the traffic lights information.

Optionally, described the step of obtaining the traffic lights information that the traffic lights are issued according to the request, includes:

The traffic lights information is decoded, obtains corresponding to the traffic route in the traffic lights of the junction ahead The remaining time of current traffic lights color and current traffic lights color.

Optionally, the driving status of vehicle is obtained, and according to the traffic lights information and driving status output driving It is recommended that the step of include:

Obtain the travel speed and the distance between vehicle and the junction ahead stop line of vehicle；

According between the traffic lights information, the travel speed of vehicle and vehicle and the junction ahead stop line away from From selecting suggestion vehicle by way of junction ahead；Wherein, the traffic lights information includes the corresponding traffic route The remaining time of traffic lights color and the color；

The suggestion vehicle is exported by way of junction ahead.

Optionally, described to be stopped according to the traffic lights information, the travel speed of vehicle and vehicle with the junction ahead The distance between fare, selecting the step of suggestion vehicle is by way of junction ahead includes:

According to the travel speed of vehicle and the distance between vehicle and the junction ahead stop line, show that vehicle crosses institute Time needed for stating junction ahead stop line；

According to the current traffic lights color of junction ahead described in the traffic lights information, the residue of current traffic lights color Time needed for time and vehicle cross the junction ahead stop line selects suggestion vehicle by way of junction ahead.

The present invention also provides a kind of vehicle parking assistance device, the vehicle parking assistance device includes:

Planning procedure module plans vehicle for obtaining the traffic information at vehicle front crossing, and according to the traffic information Traffic route；Wherein, the traffic information of the junction ahead includes the traffic information of road of being connected with the junction ahead；

Program module is obtained, for according to the traffic route, it is right in the traffic lights of the junction ahead that acquisition is set to Answer the traffic lights information of the traffic route；

Output program module obtains the driving status of vehicle, and defeated according to the traffic lights information and the driving status Driving is suggested out.

The present invention also provides a kind of terminal device, the terminal device includes: memory, processor and is stored in described deposit On reservoir and the computer program that can run on the processor, the processor realized when executing the computer program with Lower step:

The present invention also provides a kind of computer readable storage medium, vehicle is stored on the computer readable storage medium Auxiliary program is driven, the vehicle drive auxiliary program realizes following steps when being executed by processor:

The present invention also provides a kind of vehicle drive assist system, the vehicle drive assist system includes red green for broadcasting The traffic light device of lamp information and above-mentioned vehicle parking assistance device.

The present invention passes through the traffic information for obtaining vehicle front crossing, and the driving of vehicle is planned according to the traffic information Route；Wherein, the traffic information of the junction ahead includes the traffic information of road of being connected with the junction ahead；According to described Traffic route, acquisition are set to the traffic lights information that the traffic route is corresponded in the traffic lights of the junction ahead；Obtain vehicle Driving status, and according to the traffic lights information and the driving status output driving suggest, so as to avoid driver Drive vehicle in the road conditions for not knowing about junction ahead and fall into the predicaments of congestion road conditions, in addition also provide a driver with efficiently, Safety crosses the driving suggestion at crossing, avoids driver and passenger falls into congestion road conditions and wastes a large amount of time.

Detailed description of the invention

Fig. 1 is the schematic diagram of a scenario of vehicle drive assisting method first embodiment of the present invention；

Fig. 2 is the flow diagram of vehicle drive assisting method first embodiment of the present invention；

Fig. 3 is the sub-process schematic diagram of step S10 in vehicle drive assisting method first embodiment of the present invention；

Fig. 4 is the sub-process schematic diagram of step S20 in vehicle drive assisting method first embodiment of the present invention；

Fig. 5 is the coding mode scene signal of traffic lights information in vehicle drive assisting method first embodiment of the present invention Figure；

Fig. 6 is the sub-process schematic diagram of step S30 in vehicle drive assisting method first embodiment of the present invention；

Fig. 7 is the sub-process schematic diagram of step S12 in vehicle drive assisting method second embodiment of the present invention；

Fig. 8 is the coding mode schematic diagram of a scenario of traffic information in vehicle drive assisting method second embodiment of the present invention；

Fig. 9 is the structural block diagram of vehicle parking assistance device first embodiment of the present invention；

Figure 10 is the structural block diagram of one embodiment of vehicle parking assistance device planning procedure module of the present invention；

Figure 11 is the structural block diagram that vehicle parking assistance device of the present invention obtains one embodiment of program module；

Figure 12 is the structural block diagram of one embodiment of vehicle parking assistance device output program module of the present invention；

Figure 13 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；

Figure 14 is the structural block diagram of one embodiment of vehicle drive assist system of the present invention；

Figure 15 is the system architecture schematic diagram of vehicle drive assist system of the present invention.

The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.

Specific embodiment

It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

In order to be best understood from the present invention, a kind of vehicle drive assisting method is provided herein, please refers to Fig. 1 and Fig. 2, in vehicle In driving assistance method first embodiment, this method comprises:

Step S10 obtains the traffic information at vehicle front crossing, and the roadway of vehicle is selected according to traffic information Line；Wherein, the traffic information of junction ahead includes the traffic information of road of being connected with junction ahead；

The present invention be jam road is avoided in a kind of help vehicle travel process, and can efficiently, safety cross the vehicle at crossing Driving assistance method, therefore be in unimpeded state or congestion shape mainly for road during obtaining traffic information State is obtained.

In step slo, junction ahead refers to next crossing that vehicle driving can face on road, such as: On a straight trip main road, junction ahead may be considered the crossing before driving direction；On a tortuous road, junction ahead It can be by repeatedly turning and not at this moment in front of vehicle driving, but the next crossing faced later.Front road The traffic information of mouthful connected road distance that includes road on from junction ahead to the traffic information or road at whole section of other crossings Traffic information in junction ahead pre-determined distance value, the pre-determined distance value can voluntarily be selected by user according to the driving habit of oneself It takes, the pre-determined distance value of default setting can also be defaulted as.Wherein junction ahead be connected road traffic information include road from The traffic information at junction ahead to whole section of other crossings is optimal case, can be avoided congestion and appears in outside pre-determined distance range Problem can persistently provide unobstructed road under the premise of each road is not all of congestion at crossing for vehicle.

There are many mode for obtaining the traffic information of vehicle front, can obtain city by carrying out linking up in real time with traffic platform The section of middle traffic congestion come confirm junction ahead be connected road traffic information, by GPS positioning software check by satellite shooting Real picture checks that be connected traffic information etc. the mode of road of junction ahead obtains the traffic information at vehicle front crossing.

Further, opening step S10 can be selected by way of manually opened and automatically turn on, wherein from Dynamic unlatching can go out the distance between vehicle and junction ahead M1 by GPS positioning as unlocking condition, which can be by user Default distance can also be used by voluntarily adjusting, to cook up the route of suggestion driver's form in advance, driver be allowed to have enough Time lane change, and after every advance a distance more fresh driver actual travel situation, and then update to vehicle driving road The planning of line.

Step S20, according to traffic route, acquisition is set to the traffic lights that traffic route is corresponded in the traffic lights of junction ahead Information；

After the traffic route that driver receives vehicle parking assistance device prompting, vehicle is driven according to traffic route, At this time after determining traffic route, the traffic lights information of traffic route junction ahead can be obtained in advance to help driver more The case where processing junction ahead got well, crosses junction ahead for driver's control vehicle and is ready.

Specifically, Fig. 4 is please referred to, step S20 includes: in the present embodiment

Step S21 issues asking for the traffic lights information for obtaining corresponding traffic route to the traffic lights for being set to junction ahead It asks；

The traffic lights of junction ahead include respectively to the indicative traffic lights information of the vehicle of left lateral, straight trip and right lateral, After traffic route has been determined, the request of traffic route and the traffic route traffic lights information is sent to traffic lights together, red green Lamp can be responded according to the request of traffic lights information, such as: vehicle needs to travel to the left in junction ahead, therefore to being set to The traffic lights of junction ahead issue the traffic lights request for obtaining travel route to the left, and traffic lights can be according to the request of traffic lights information It is responded.

In the present embodiment, Fig. 5 is please referred to, after traffic lights carry out binary system and hexadecimal code to traffic lights information It issues, coding mode is illustrated for being indicated using four hexadecimal digits, and such as 4-digit number represents traffic lights Color and direction, after being converted into tetrad, Gao Liangwei represents direction, and low two represent color, such as: high two 00 representatives North and South direction, 01 represents thing, and direction, 10, which represent northwest, represents northeast to southwestward to southeastern direction, 11；Low two 00 generations Table green light, 01 represents amber light, and 10 represent red light；Then 0010 North and South direction red light is represented, being converted into hexadecimal is 2；Afterwards three Position represents traffic lights remaining time, such as: 001A, then highest order 0 represents green light, and it is 16+ that rear three 01A, which are converted into the decimal system, 10=26 seconds；To sum up regular, if present encoding is 201A, i.e., current traffic lights information is North and South direction red light, 26 seconds remaining.

Step S22 obtains the traffic lights information that traffic lights are issued according to request；

Step S23 exports traffic lights information.

After being decoded to the traffic lights information by coding, export to driver.The mode of output includes but is not limited to The modes such as voice broadcast, picture cues, vibration, light flash, simulated projections, wherein because voice broadcast will not shift driver's Sight, it is smaller to driver-operated interference, therefore the mode of preferably voice broadcast is reminded.

Traffic lights information targetedly is obtained according to carriage way pre-planned, is existed in vehicle front large-scale Vehicle can obtain traffic lights information in the case where stopping driver to see traffic lights in time, avoid driver red green because not knowing about Lamp information front vehicles when changing to red light by green light suddenly brake and knock front vehicles and cause the case where knocking into the back.

Step S30 obtains the driving status of vehicle, and is suggested according to traffic lights information and driving status output driving；

Specifically, Fig. 6 is please referred to, step S30 includes: in the present embodiment

Step S31 obtains the travel speed and the distance between vehicle and junction ahead stop line of vehicle；

Vehicle parking assistance device measures the travel speed of vehicle in vehicle travel process, by requesting simultaneously to traffic lights The time difference for obtaining traffic lights information measures the distance between vehicle and junction ahead stop line, or directly passes through GPS positioning System determines the travel speed of vehicle and at a distance from junction ahead.In the present embodiment, the travel speed of vehicle, brake number and The driving informations such as driving direction are all by the vehicle-mounted OBD (On-Board Diagnostic, onboard diagnostic system) in vehicle What interface was got.

Step S32, according between traffic lights information, the travel speed of vehicle and vehicle and junction ahead stop line away from From selecting suggestion vehicle by way of junction ahead；Wherein, traffic lights information includes the traffic lights face of corresponding traffic route The remaining time of color and the color；

Step S33, output suggest vehicle by way of junction ahead.

Further, opening step S30 can be selected by way of manually opened and automatically turn on, wherein from Dynamic unlatching can go out the distance between vehicle and junction ahead M2 by GPS positioning as unlocking condition, which can be by user Default distance can also be used by voluntarily adjusting, but it should meeting M2 < M1, traffic route has only first been determined, can avoid leading to Enter jam road after crossing crossing.

In the embodiment of the present invention when very last seconds remaining for green light in daily crossroads traffic light, often there is driver and add Therefore the problem of speed robbed crossing and traffic accident occurs on the basis of getting traffic lights information, further obtains vehicle Driving status, and a series of calculating is carried out according to traffic lights information and driving status, obtain whether can former speed traveling plus Speed drive through junction ahead or cannot by junction ahead should ramp to stop suggestion to driver, avoid driver with It makes a fault by means of micro-judgment the case where leading to accident, improves and drive efficiency and safety that vehicle crosses crossing.

Optionally, Fig. 3 is please referred to, step S10 includes: in the present embodiment

Step S11 obtains the traffic information for being located at other vehicles that vehicle front crossing is connected on road；

In the present embodiment, data transmission is carried out by way of radio broadcasting, including but not limited to utilization WI-FI mode carries out, and WI-FI MAC Address carries out coding behaviour by 12 hexadecimal digital representations before transmitting Make, is decoded operation after acquisition.The vehicle travelled on each road in city vehicle drive can all assist through the invention Device shares the traffic information of road locating for vehicle, i.e., traffic information is uploaded to server and obtained for other terminals；Vehicle Drive assistance device is located at junction ahead and is connected road by choosing in the server, can get junction ahead and be connected road The traffic information of other vehicles of road.

Vehicle itself can not learn that traffic information, vehicle need to judge whether the driving conditions of itself meet congestion row Spoke part can judge the traffic information of the road locating for itself, and congestion driving condition is vehicle on the road of congestion status The situation that will appear is travelled, including but not limited to travel speed of the vehicle within the unit time is less than pre-set velocity, vehicle in list The number to brake in the time of position situations such as the residence time is too long on road, works as driving conditions more than default brake number, vehicle Meet one of congestion driving condition or it is a variety of when, vehicle will be considered that the road locating for itself is the feelings for belonging to congestion road conditions Traffic information of the condition to report is congestion traffic information, and the vehicle reports if the driving conditions of vehicle do not meet driving condition Traffic information be unimpeded traffic information.

Step S12, according to the traffic information of other vehicles, the road conditions result for road of determining to be connected with junction ahead；

Step S13, according to road conditions as a result, the traffic route of planning vehicle.

It is mentioned as a result, cooking up relatively unobstructed road as traffic route according to the road conditions of each connected road of junction ahead It wakes up to driver, to avoid the predicament that vehicle falls into congestion road conditions is driven.For example, junction ahead toward the north to road be in gather around Stifled state, and westerly the road in direction is in unimpeded state, then driver is reminded westwards to travel in junction ahead in advance, to keep away Exempt from the predicament that vehicle falls into congestion.

After the traffic information for understanding each road being connected with junction ahead, the road conduct in unimpeded state is cooked up The traffic route of vehicle is reminded in advance to driver, and driver can be according to the traffic route driving vehicle of prompting, so that vehicle reaches It blocks up section to few as far as possible experience during destination, avoids driver the road conditions for not knowing junction ahead the case where It is lower to drive into vehicle to going on the road of congestion, driver can be saved using the present invention and passenger wasted because of traffic congestion it is tens of The minute even quality time of a few hours.Wherein, the mode of prompting can dodge for voice broadcast, picture cues, vibration, light One of modes such as bright, simulated projections are a variety of, wherein driving because voice broadcast will not shift the sight of driver to driver The interference sailed is smaller, therefore the mode of preferably voice broadcast is reminded.

In addition, driver can input destination before traveling, the present invention is that vehicle is cooked up and arrived at the destination in advance The shortest route of distance, driver is according to the route running planned in advance.Assuming that by the route planned in advance in junction ahead It should northwards travel, but can recognize that the road toward north is in the shape of congestion from the traffic information of the junction ahead of acquisition Condition, and westerly the road in direction is in unimpeded state, then driver is reminded westwards to travel in junction ahead in advance, and according to driving The road of road, that is, junction ahead of member's actual travel westerly is cooked up again arrives at the destination the shortest route of distance.

In addition, vehicle drive assisting method further include: the driving information that vehicle is obtained based on vehicle-mounted OBD interface, according to row The traffic information that acquisition of information vehicle is presently in section jam situation is sailed, and traffic information is broadcasted to vehicle-surroundings.

OBD (On-Board Diagnostic, onboard diagnostic system) monitors operation conditions, the tail of vehicle motor at any time The driving information of gas processing system, brake system, tire pressure system, while driving information can be stored in memory, and root by OBD interface The traffic information that vehicle is presently in section, such as vehicle brake very frequent (such as unit time are identified and obtained according to driving information Interior brake number is greater than preset times, determines that vehicle brake is frequent), engine speed fluctuations it is larger (when engine speed unit Interior rotation speed change amount is greater than preset rotation speed value), determining that vehicle is presently in section is congestion, i.e. the qualitative vehicle of traffic information Being presently in section is congestion, and wherein traffic information includes at least vehicle and is presently in section position and locating section congestion feelings Condition.Vehicle is in real time or the traffic information itself generated is broadcasted in timing to vehicle-surroundings, to realize traffic information between more vehicles It is shared, be conducive to vehicle and know based on traffic information the jam situation of junction ahead, be more advantageous to accurately output driving It is recommended that.

Further, Fig. 7 is please referred to, based on the first embodiment of vehicle drive assisting method of the present invention, in this hair In bright vehicle drive assisting method second embodiment, step S12 includes:

Step S121, whether the traffic information that other vehicles that judgement is located at the connected road of junction ahead report is congestion road Condition information；

Fig. 8 is please referred to, the congestion traffic information and unimpeded traffic information that vehicle reports are by binary system and ten It is issued after senary coding, coding mode indicates that the 4th represents crossing direction and road conditions using four hexadecimal digits Information, after being converted into tetrad, Gao Liangwei represents direction, and low two represent road conditions.Such as high two 00 represent red street lamp south Side, 01 represents traffic lights north side, and 10 generation traffic lights west sides, 11 represent the east side of eastern red and green color；Low two 00 to represent road conditions unimpeded, 01 represents that road conditions are normal, and 10 represent congestion, it is proposed that detours；Then 0010 represent the section congestion of traffic lights southern side, be converted into 16 into System is 2.

Therefore after the traffic information reported to other vehicles is decoded, it can judge the road conditions letter that the vehicle reports Whether breath is congestion traffic information.

Step S122, if being located at same road and the vehicle fleet size of congestion traffic information being reported to reach the first preset quantity, The traffic information for then determining the road is congestion road conditions, and then the road conditions result for each road of determining to be connected with junction ahead.

To junction ahead be connected the every other vehicle on road sending traffic information carry out one by one determine after, according to The direction in traffic information reported can classify the vehicle of different roads, show that each road of traffic lights reports road conditions to believe The quantity of the vehicle of breath, if occurring being located on same road and the quantity of the vehicle of congestion traffic information being reported to reach first presets Quantity then can determine that the traffic information of the road is congestion road conditions, and then determine and the road of each road that is connected of junction ahead Condition result.First preset quantity is when there is jam situation, and the minimum quantity of tailback is preset when can be factory , it is also possible to set numerical value by driver oneself, such as: driver thinks to have more than 30 automobiles on same road simultaneously Report congestion traffic information that can confirm that the road is in congestion status, then the first preset quantity is 30.

Furthermore it is also possible to by the different congestion level of congestion road conditions point and corresponding the first different preset quantity, congestion Rank is more serious, reports the quantity of congestion traffic information the first preset quantity to be achieved more.

Further, traffic lights are using identical in the traffic information and step S21 that other vehicles issue in step S121 Coding mode, therefore can be encoded on the basis of above-mentioned four hexadecimal using five hexadecimal methods, lead to The traffic lights information that the traffic information and traffic lights crossing five digit number to issue vehicle issue distinguishes, and four later Coding mode is identical as above-mentioned corresponding coding method, and details are not described herein, and vehicle parking assistance device is preferentially solved in decoding Code five digit number is decoded operation further according to different data-signal correspondences later.

Further, above-described embodiment based on vehicle drive assisting method of the present invention is assisted in vehicle drive of the present invention In the fourth embodiment of method, step S22 includes:

Step S221 obtains the traffic lights information that traffic lights are issued according to request；

Traffic lights learn the traffic route of vehicle, so after receiving the request of traffic lights information of corresponding traffic route The traffic lights information for itself corresponding to the traffic route is found according to traffic route afterwards, the volume of aforesaid way is carried out to traffic lights information It is issued after code.The mode of sending can be traffic lights in the case where current environment has hot spot for the corresponding write-in heat of traffic lights information It puts MAC Address corresponding field or traffic lights and traffic lights information is issued by vehicle parking assistance device by wireless network, vehicle is driven It sails auxiliary device and extraction hot spot MAC Address corresponding field is corresponding with according to the sending mode of traffic lights, or obtained from wireless network Take the red information such as green.

Step S222 is decoded traffic lights information, obtains corresponding to working as traffic route in the traffic lights of junction ahead The remaining time of preceding traffic lights color and current traffic lights color.

Encoded traffic lights information is decoded, to obtain traffic lights color in traffic lights information and current red The remaining time of green light color to call directly the residue of traffic lights color and current traffic lights color in the steps afterwards Time.

In the present embodiment, the traffic lights information of corresponding route or travel by vehicle can be sent to by traffic lights in several ways Vehicle parking assistance device, corresponding vehicle parking assistance device obtain the diversity of traffic lights information, and then ensure that acquisition is red The reliability of street lamp information.

Further, above-described embodiment based on vehicle drive assisting method of the present invention is assisted in vehicle drive of the present invention In 5th embodiment of method, step S32 includes:

Step S321 obtains vehicle according to the travel speed of vehicle and the distance between vehicle and junction ahead stop line Time needed for crossing junction ahead stop line；

Step S322, according in traffic lights information the current traffic lights color, current traffic lights color of junction ahead it is surplus Time needed for remaining time and vehicle cross junction ahead stop line selects suggestion vehicle by way of junction ahead.

Assuming that the traffic lights information of junction ahead is red light, remaining time is that t is red, is stopped according to current distance junction ahead The distance and current driving speed of line calculate the time that present speed reaches junction ahead, if the travel speed of vehicle is set as v, The distance between vehicle and junction ahead stop line are set as M, then reach the time T=M/v+k of junction ahead, and wherein k is compensation Value.It is red to judge whether the time T for reaching junction ahead is greater than t again, when T > t is red, selection suggests that driver keeps former speed logical Cross the mode of junction ahead；When T < t is red, the mode that driver's ramp to stop waits is suggested in selection.It is red green when junction ahead When lamp information is green light, then when T < t is green, selection suggests that driver keeps former speed by way of junction ahead；In T > t When green, selection suggests that driver accelerates by way of junction ahead or ramp to stop, and then can be according to active user Whether actual travel situation and real-time traffic lights information judge that user accelerates can be by, for example: being less than in vehicle present speed The 50% of present road speed limit value, and when the green < 1S of T-t, it prompts driver to give it the gun and passes through junction ahead.Driver is practical It is further assessed after traveling certain distance, and continues to select to the driving suggestion of driver by above-mentioned rule.It needs to infuse Meaning, when judging whether to can speed up across crossing, the attainable maximum speed of institute should be not higher than current driving road Speed limit value selects to need the suggestion slowed down of stopping if the speed limit value that need to be greater than current driving road by the speed at crossing.

In the present embodiment, specifically discloses traffic lights information, the travel speed of vehicle and vehicle and junction ahead stops The distance between line selects a kind of mode of the suggestion vehicle by junction ahead, reaches junction ahead by comparing vehicle and stop Time of fare and the time of traffic lights as foundation of the vehicle by junction ahead is suggested, ensure that suggestion reliability and Practical property avoids driver because personal experience judges traffic accident caused by malfunctioning.

The present invention also provides a kind of embodiments of vehicle parking assistance device.

Referring to Fig. 9, in the first embodiment of vehicle parking assistance device, vehicle parking assistance device 100 includes planning Program module 10 obtains program module 20 and output program module 30, in which:

Planning procedure module 10 plans vehicle for obtaining the traffic information at vehicle front crossing, and according to traffic information Traffic route；Wherein, the traffic information of junction ahead includes the traffic information of road of being connected with junction ahead；

Junction ahead refers to next crossing that vehicle driving can face on road, such as: it is big in a straight trip On road, junction ahead may be considered the crossing before driving direction；On a tortuous road, junction ahead be can be through excessive Secondary turning and not at this moment in front of vehicle driving, but the next crossing faced later.The connected road of junction ahead It is default apart from junction ahead on from junction ahead to the traffic information or road at whole section of other crossings that traffic information includes road Traffic information in distance value, the pre-determined distance value can voluntarily be chosen according to the driving habit of oneself by user, can also be defaulted For the pre-determined distance value of default setting.Wherein junction ahead be connected road traffic information include road from junction ahead to other The traffic information that whole section of crossing is optimal case, can be avoided congestion and appears in problem outside pre-determined distance range, each at crossing Road can persistently provide unobstructed road under the premise of being not all of congestion for vehicle.

Optionally, Figure 10 is please referred to, planning procedure module 10 includes the first acquisition subroutine module in the present embodiment 11, subroutine module 12 and planning subroutine module 13 are determined, in which:

First obtains subroutine module 11, obtains the road conditions letter for being located at other vehicles that vehicle front crossing is connected on road Breath；

Determine subroutine module 12, according to the traffic information of other vehicles, the road for road of determining to be connected with junction ahead Condition result；

Subroutine module 13 is planned, according to road conditions as a result, the traffic route of planning vehicle.

Further, opening planning procedure module 10 can be selected by way of manually opened and automatically turn on, Wherein, automatic opening can go out the distance between vehicle and junction ahead M1 by GPS positioning as unlocking condition, which can Default distance can also be used by voluntarily being adjusted by user, to cook up the route of suggestion driver's form in advance, allow driver Have time enough lane change, and after every advance a distance more fresh driver actual travel situation, and then update to vehicle The planning of traffic route.

Program module 20 is obtained, for according to traffic route, acquisition to be set in the traffic lights of junction ahead corresponding driving The traffic lights information of route；

Specifically, Figure 11 is please referred to, it includes request subroutine module 21, that program module 20 is obtained in the present embodiment Two obtain subroutine module 22 and the first output subroutine module 23, in which:

Subroutine module 21 is requested, the traffic lights for obtaining corresponding traffic route are issued to the traffic lights for being set to junction ahead The request of information；

Second obtains subroutine module 22, obtains the traffic lights information that traffic lights are issued according to request；

First output subroutine module 23 exports traffic lights information.

Output program module 30 obtains the driving status of vehicle, and according to traffic lights information and driving status output driving It is recommended that.

Specifically, Figure 12 is please referred to, output program module 30 includes that third obtains subroutine module in the present embodiment 31, subroutine module 32 and the second output subroutine module 33 are selected, in which:

Third obtain subroutine module 31, obtain between the travel speed of vehicle and vehicle and junction ahead stop line away from From；

Vehicle parking assistance device measures the travel speed of vehicle in vehicle travel process, by requesting simultaneously to traffic lights The time difference for obtaining traffic lights information measures the distance between vehicle and junction ahead stop line, or directly passes through GPS positioning System determines the travel speed of vehicle and at a distance from junction ahead.In the present embodiment, the travel speed of vehicle, brake number and Driving direction is got by vehicle-mounted OBD (On-Board Diagnostic, onboard diagnostic system) interface in vehicle 's.

Subroutine module 32 is selected, is stopped according to traffic lights information, the travel speed of vehicle and vehicle and junction ahead The distance between line selects suggestion vehicle by way of junction ahead；Wherein, traffic lights information includes corresponding traffic route Traffic lights color and the color remaining time；

Second output subroutine module 33, output suggest vehicle by way of junction ahead.

Further, opening output program module 30 can be selected by way of manually opened and automatically turn on, Wherein, automatic opening can go out the distance between vehicle and junction ahead M2 by GPS positioning as unlocking condition, which can Default distance can also be used by voluntarily being adjusted by user, but it should meeting M2 < M1, traffic route has only first been determined, can Enter jam road after avoiding passing through crossing.

It is real in vehicle parking assistance device second of the present invention based on the first embodiment of vehicle parking assistance device of the present invention It applies in example, determines that subroutine module 12 judges that subroutine unit 121, first determines subroutine unit 122 including first, in which:

First judges subroutine unit 121, and judgement is located at the road conditions letter that other vehicles of the connected road of junction ahead report Whether breath is congestion traffic information；

First determines subroutine unit 122, if being located at same road and the vehicle fleet size of congestion traffic information being reported to reach First preset quantity, it is determined that the traffic information of the road is congestion road conditions, and then determines each road that is connected with junction ahead The road conditions result on road.

Further, first judges the traffic information of other vehicles sending and request subprogram mould in subroutine unit 121 In block traffic lights use identical coding mode, therefore can on the basis of above-mentioned four hexadecimal using five 16 into The method of system is encoded, the traffic lights information that the traffic information and traffic lights issued by five digit number to vehicle issues It distinguishes, four coding modes are identical as above-mentioned corresponding coding method later, and details are not described herein, vehicle drive auxiliary Device preferentially decodes five digit number in decoding, is decoded operation further according to different data-signal correspondences later.

In addition, vehicle parking assistance device further include: radio program module, for obtaining vehicle based on vehicle-mounted OBD interface Driving information, vehicle is obtained according to driving information and is presently in the traffic information of section jam situation, and by traffic information to Vehicle-surroundings broadcast.

Furthermore it is also possible to by the different congestion level of congestion road conditions point and the congestion road of the corresponding different number detected Condition information, congestion level is more serious, and congestion traffic information quantity the second preset quantity to be achieved detected is more.

Further, above-described embodiment based on vehicle parking assistance device of the present invention is assisted in vehicle drive of the present invention In the fourth embodiment of device, second, which obtains subroutine module 22, obtains the reconciliation numeral program of subroutine unit 221 including second Unit 222, in which:

Subroutine unit 221 is obtained, the traffic lights information that traffic lights are issued according to request is obtained；

Subroutine unit 222 is decoded, traffic lights information is decoded, obtains corresponding driving in the traffic lights of junction ahead The current traffic lights color of route and the remaining time of current traffic lights color.

Further, above-described embodiment based on vehicle parking assistance device of the present invention is assisted in vehicle drive of the present invention In 5th embodiment of device, subroutine module 32 is selected to include counting subroutine unit 321 and selection subroutine unit 322, Wherein:

Counting subroutine unit 321, according to the travel speed of vehicle and the distance between vehicle and junction ahead stop line, Obtain the time needed for vehicle crosses junction ahead stop line；

Subroutine unit 322 is selected, according to the current traffic lights color of junction ahead, current traffic lights in traffic lights information Time needed for the remaining time of color and vehicle cross junction ahead stop line selects suggestion vehicle and passes through junction ahead Mode.

As shown in figure 13, Figure 13 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.

The terminal of that embodiment of the invention (i.e. terminal device) can be PC, be also possible to smart phone, tablet computer, e-book Reader, MP3 (Moving Picture Experts Group Audio Layer III, dynamic image expert's compression standard Audio level 3) player, MP4 (Moving Picture Experts Group Audio Layer IV, dynamic image expert Compression standard audio level 3) the packaged type terminal device having a display function such as player, portable computer.

As shown in figure 13, which may include: processor 1001, such as CPU, network interface 1004, user interface 1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is for realizing the connection communication between these components. User interface 1003 may include display screen (Display), input unit such as keyboard (Keyboard), optional user interface 1003 can also include standard wireline interface and wireless interface.Network interface 1004 optionally may include that the wired of standard connects Mouth, wireless interface (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory (non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor 1001 storage device.

Optionally, terminal can also include camera, RF (Radio Frequency, radio frequency) circuit, sensor, audio Circuit, WiFi module etc..Wherein, sensor such as optical sensor, motion sensor and other sensors.Specifically, light Sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can according to the light and shade of ambient light come The brightness of display screen is adjusted, proximity sensor can close display screen and/or backlight when mobile terminal is moved in one's ear.As One kind of motion sensor, gravity accelerometer can detect the size of (generally three axis) acceleration in all directions, quiet Size and the direction that can detect that gravity when only, the application that can be used to identify mobile terminal posture are (such as horizontal/vertical screen switching, related Game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Certainly, mobile terminal can also match The other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor are set, details are not described herein.

It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 1, can wrap It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.

As shown in Figure 1, as may include that operating system, network are logical in a kind of memory 1005 of computer storage medium Believe module, Subscriber Interface Module SIM and vehicle drive auxiliary program (computer program i.e. as described in the examples).

In the terminal shown in Figure 13, network interface 1004 be mainly used for connect background server, with background server into Row data communication；User interface 1003 is mainly used for connecting client (user terminal), carries out data communication with client；And it handles Device 1001 can be used for calling the vehicle drive auxiliary program stored in memory 1005, and execute following operation:

In addition, processor 1001 can be used for calling the vehicle drive auxiliary program stored in memory 1005, and execute The step of each embodiment of above-mentioned vehicle drive assisting method, do not make tired state herein.

In addition, also realizing each embodiment of above-mentioned vehicle drive assisting method when vehicle drive auxiliary program is executed by processor The step of, do not make tired state herein.

The present invention also provides a kind of vehicle drive assist system, referring to Fig.1 4, vehicle drive assist system includes for wide The traffic light device 200 and vehicle parking assistance device 100 of traffic lights information are broadcast, vehicle parking assistance device 100 includes:

In addition, referring to Fig.1 5, traffic lights side (i.e. traffic light device) includes: traffic lights data obtaining module, traffic lights letter Cease coding module, traffic lights information transmission modular；

Wherein data obtaining module obtains traffic lights information from traffic lights display controller end, is compiled by coding module Traffic lights information, is added in WIFI module MAC Address by MAC Address update module and carries out broadcast transmission by code.

Terminal side (terminal side includes vehicle parking assistance device) includes: that message processing module and function realize module；Its Middle message processing module includes information transmission mould, and running information obtains module, congestion determination module, data encoding and decoding mould Block.Function realizes that module includes jam situation traffic light prompting module, and jam situation path planning module is optimal to pass through crossing Planning module.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art The part contributed out can be embodied in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes Be engaged in device, airhandling equipment or the network equipment etc.) method that executes each embodiment of the present invention.

The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims

1. a kind of vehicle drive assisting method, which is characterized in that the vehicle drive assisting method includes:

The traffic information at vehicle front crossing is obtained, and plans the traffic route of vehicle according to the traffic information；Wherein, described The traffic information of junction ahead includes the traffic information of road of being connected with the junction ahead；

According to the traffic route, acquisition is set to the traffic lights that the traffic route is corresponded in the traffic lights of the junction ahead Information；

2. vehicle drive assisting method according to claim 1, which is characterized in that the road for obtaining vehicle front crossing Condition information, and the step of planning the traffic route of vehicle according to the traffic information includes:

3. vehicle drive assisting method according to claim 2, which is characterized in that the road issued according to other vehicles The step of condition information, the road conditions result for road of determining to be connected with the junction ahead includes:

Whether the traffic information that other vehicles that judgement is located at the connected road of the junction ahead report is congestion traffic information；

If being located at same road and the vehicle fleet size of congestion traffic information being reported to reach preset quantity, it is determined that the road conditions of the road It as a result is congestion road conditions, and then the road conditions result for each road of determining to be connected with the junction ahead.

4. according to claim 1 to vehicle drive assisting method described in 3 any one, which is characterized in that the vehicle drive Householder method includes:

The driving information that vehicle is obtained based on vehicle-mounted OBD interface is obtained vehicle according to driving information and is presently in section congestion feelings The traffic information of condition, and traffic information is broadcasted to vehicle-surroundings.

5. according to claim 1 to vehicle drive assisting method described in 3 any one, which is characterized in that described according to Traffic route obtains the step of being set to the traffic lights information that the traffic route is corresponded in the traffic lights of junction ahead packet It includes:

The request for obtaining the traffic lights information of the corresponding traffic route is issued to the traffic lights for being set to the junction ahead；

Export the traffic lights information.

6. vehicle drive assisting method according to claim 5, which is characterized in that described to obtain the traffic lights according to institute Stating the step of requesting the traffic lights information issued includes:

The traffic lights information is decoded, obtains corresponding to the current of the traffic route in the traffic lights of the junction ahead The remaining time of traffic lights color and current traffic lights color.

7. according to claim 1 to vehicle drive assisting method described in 3 any one, which is characterized in that obtain the row of vehicle State is sailed, and the step of suggesting according to the traffic lights information and driving status output driving includes:

According to the distance between the traffic lights information, the travel speed of vehicle and vehicle and the junction ahead stop line, Suggestion vehicle is selected by way of junction ahead；Wherein, the traffic lights information includes the red of the corresponding traffic route The remaining time of green light color and the color；

The suggestion vehicle is exported by way of junction ahead.

8. vehicle drive assisting method according to claim 6, which is characterized in that it is described according to the traffic lights information, The distance between the travel speed and vehicle of vehicle and the junction ahead stop line select suggestion vehicle and pass through front road Mouthful mode the step of include:

According to the travel speed of vehicle and the distance between vehicle and the junction ahead stop line, obtain vehicle cross it is described before Time needed for square crossing stop line；

According to the remaining time of the current traffic lights color of junction ahead described in the traffic lights information, current traffic lights color Time needed for crossing the junction ahead stop line with vehicle selects suggestion vehicle by way of junction ahead.

9. a kind of vehicle parking assistance device, which is characterized in that the vehicle parking assistance device includes:

Program module is obtained, for according to the traffic route, acquisition, which is set in the traffic lights of the junction ahead, to correspond to institute State the traffic lights information of traffic route；

Output program module obtains the driving status of vehicle, and according to the traffic lights information and driving status output row Vehicle suggestion.

10. vehicle parking assistance device according to claim 9, which is characterized in that the planning procedure module includes:

First obtains subroutine module, for obtaining the road conditions for being located at other vehicles that vehicle front crossing is connected on road and issuing Information；

Determine subroutine module, the traffic information for issuing according to other vehicles is determined to be connected with the junction ahead The road conditions result on road；

Plan subroutine module, for according to the road conditions as a result, planning vehicle traffic route.

11. vehicle parking assistance device according to claim 9 or 10, which is characterized in that the vehicle drive auxiliary dress It sets further include:

Radio program module is obtained vehicle according to driving information and worked as being obtained the driving information of vehicle based on vehicle-mounted OBD interface The traffic information of preceding locating section jam situation, and traffic information is broadcasted to vehicle-surroundings.

12. vehicle parking assistance device according to claim 9 or 10, which is characterized in that the acquisition program module packet It includes:

Subroutine module is requested, for issuing the traffic lights letter for obtaining corresponding traffic route to the traffic lights for being set to junction ahead The request of breath；

Second obtains subroutine module, obtains the traffic lights information that traffic lights are issued according to request；

First output subroutine module exports traffic lights information.

13. vehicle parking assistance device according to claim 12, which is characterized in that described second obtains subroutine module Include:

Subroutine unit is obtained, the traffic lights information issued for obtaining traffic lights according to request；

Decoding subroutine unit obtains corresponding to roadway in the traffic lights of junction ahead for being decoded traffic lights information The current traffic lights color of line and the remaining time of current traffic lights color.

14. vehicle parking assistance device according to claim 9 or 10, which is characterized in that the output program module packet It includes:

Third obtains subroutine module, for obtaining between the travel speed of vehicle and vehicle and the junction ahead stop line Distance；

Subroutine module is selected, for according to the traffic lights information, the travel speed of vehicle and vehicle and the front road The distance between mouth stop line, selects suggestion vehicle by way of junction ahead；Wherein, the traffic lights information includes pair Answer the traffic lights color of the traffic route and the remaining time of the color；

Second output subroutine module, for exporting the suggestion vehicle by way of junction ahead.

15. a kind of terminal device, the terminal device includes: memory, processor and is stored on the memory and can be The computer program run on the processor, which is characterized in that the processor realized when executing the computer program with Lower step:

16. a kind of vehicle drive assist system, which is characterized in that the vehicle drive assist system includes for broadcasting traffic lights The traffic light device of information and vehicle parking assistance device as claimed in claim 9.