CN101916495A - System and method for assisted driving of a vehicle - Google Patents

Abstract

Translated fromChinese

本发明涉及一种车辆辅助驾驶系统及方法，该系统包括车载终端和监控平台。首先车载终端根据监控平台的设置定期获取车载终端所属车辆的经纬度信息，并将该车辆经纬度信息发送至监控平台。然后监控平台根据该车辆经纬度信息计算得到该车辆持续驾驶时间，和/或该车辆偏移预置线路的偏移距离，和/或查找得到供驾驶员休息的停车点，并在该车辆触发预警条件时向车载终端发送预警命令。最后车载终端在接收到来自该监控平台的预警命令后，以语音或文字形式提醒驾驶员疲劳驾驶，和/或告知驾驶员停车点地址。本发明不仅能够提醒驾驶员疲劳驾驶，而且能够为其主动搜素供驾驶员休息的停车点，本发明能够应用于交通系统领域中。

The invention relates to a vehicle auxiliary driving system and method. The system includes a vehicle-mounted terminal and a monitoring platform. First, the vehicle-mounted terminal regularly obtains the latitude and longitude information of the vehicle to which the vehicle-mounted terminal belongs according to the settings of the monitoring platform, and sends the vehicle's latitude and longitude information to the monitoring platform. Then the monitoring platform calculates the continuous driving time of the vehicle according to the latitude and longitude information of the vehicle, and/or the offset distance of the vehicle from the preset route, and/or finds a parking spot for the driver to rest, and triggers an early warning on the vehicle When the conditions are met, an early warning command is sent to the vehicle terminal. Finally, after receiving the early warning command from the monitoring platform, the vehicle-mounted terminal reminds the driver of fatigue driving in the form of voice or text, and/or informs the driver of the parking spot address. The invention can not only remind the driver of fatigue driving, but also actively search for a parking spot for the driver to rest, and the invention can be applied in the field of traffic system.

Description

Translated fromChinese

一种车辆辅助驾驶系统及方法System and method for assisted driving of a vehicle

技术领域technical field

本发明涉及智能交通系统，尤其涉及车辆驾驶辅助方法。The invention relates to an intelligent traffic system, in particular to a vehicle driving assistance method.

背景技术Background technique

随着经济水平日益提高，汽车的使用越来越广泛，然而在方便人们出行的同时，所产生的交通事故也越来越多，其中很大一部分由疲劳驾驶所引起。Along with improving day by day of economic level, the use of automobile is more and more extensive, yet while making things convenient for people to travel, the traffic accident that produces is also more and more, wherein a large part is caused by fatigue driving.

疲劳驾驶一直是人类公路杀手，驾驶者疲劳时会出现视线模糊、动作呆板、手脚发胀、精力不集中、反应迟钝等现象，如果此时仍然勉强驾驶，就很有可能导致交通事故的发生。Fatigue driving has always been the killer of human roads. When the driver is tired, he will have blurred vision, dull movements, swollen hands and feet, lack of concentration, and slow response. If he still drives reluctantly at this time, it is likely to lead to traffic accidents.

据调查显示，目前因疲劳驾驶所发生的交通事故占总交通事故的20％左右，在特大交通事故中更是占到了40％的比例，交通事故不仅会导致大量财产损失，严重时还会危及人们生命安全，因此如何防范疲劳驾驶已经成为减少现代交通事故发生率的一个重要课题。According to the survey, the current traffic accidents due to fatigue driving account for about 20% of the total traffic accidents, and account for 40% of the serious traffic accidents. Traffic accidents will not only cause a lot of property damage, but also endanger People's lives are safe, so how to prevent fatigue driving has become an important topic to reduce the incidence of modern traffic accidents.

发明内容Contents of the invention

本发明提供了一种车辆辅助驾驶系统及方法，解决了驾驶员疲劳驾驶所带来的危险问题。The invention provides a vehicle auxiliary driving system and method, which solves the dangerous problem caused by the driver's fatigue driving.

在第一方面，本发明提供了一种车辆辅助驾驶方法，该车辆包括车载终端，且该车载终端通过无线网络与监控平台进行信息交互。该车辆辅助驾驶方法包括以下步骤：In a first aspect, the present invention provides a method for assisted driving of a vehicle. The vehicle includes a vehicle-mounted terminal, and the vehicle-mounted terminal performs information interaction with a monitoring platform through a wireless network. The vehicle assisted driving method includes the following steps:

首先，该车载终端根据该监控平台的设置定期向GPS定位卫星获取该车载终端所属车辆的经纬度信息，并将该车辆经纬度信息发送至该监控平台；然后，该监控平台根据该车辆经纬度信息计算得到该车辆持续驾驶时间，和/或该车辆偏移预置线路的偏移距离，和/或查找得到供驾驶员休息的停车点，并在该车辆触发预警条件时向该车载终端发送预警命令；最后，该车载终端在接收到来自该监控平台的预警命令后，以语音或文字形式提醒驾驶员疲劳驾驶，和/或告知驾驶员停车点地址，以供驾驶员停靠休息。First, the vehicle-mounted terminal regularly obtains the latitude and longitude information of the vehicle to which the vehicle-mounted terminal belongs from the GPS positioning satellite according to the settings of the monitoring platform, and sends the vehicle's latitude and longitude information to the monitoring platform; then, the monitoring platform calculates the vehicle according to the vehicle's latitude and longitude information. The vehicle's continuous driving time, and/or the offset distance of the vehicle's offset from the preset route, and/or find a parking spot for the driver to rest, and send an early warning command to the vehicle terminal when the vehicle triggers an early warning condition; Finally, after receiving the early warning command from the monitoring platform, the vehicle-mounted terminal will remind the driver of fatigue driving in the form of voice or text, and/or inform the driver of the address of the parking spot for the driver to stop for a rest.

在第二方面，本发明提供了一种车辆辅助驾驶系统，该系统包括车载终端和监控平台，且该车载终端与该监控平台通过无线的方式交互信息。In a second aspect, the present invention provides a vehicle assisted driving system, the system includes a vehicle-mounted terminal and a monitoring platform, and the vehicle-mounted terminal exchanges information with the monitoring platform in a wireless manner.

该车载终端用于定期向GPS定位卫星获取该车载终端所属车辆的经纬度信息，并将该车辆经纬度信息发送至该监控平台；且该车载终端还用于接收到来自该监控平台的预警命令，并基于该预警命令提醒驾驶员疲劳驾驶，和/或告知驾驶员停车点地址，以供驾驶员停靠休息。The vehicle-mounted terminal is used to regularly obtain the latitude and longitude information of the vehicle to which the vehicle-mounted terminal belongs from the GPS positioning satellite, and send the vehicle's latitude and longitude information to the monitoring platform; and the vehicle-mounted terminal is also used to receive early warning commands from the monitoring platform, and Based on the warning command, the driver is reminded of fatigue driving, and/or the driver is notified of the address of the parking spot for the driver to stop for a rest.

该监控平台用于计算该车辆持续驾驶时间，和/或该车辆偏移预置线路的偏移距离，和/或查找得到供驾驶员休息的停车点，并在该车辆触发预警条件时向所述车载终端发送预警命令。The monitoring platform is used to calculate the continuous driving time of the vehicle, and/or the offset distance of the vehicle from the preset route, and/or find a parking spot for the driver to rest, and report to the vehicle when the warning condition is triggered. The vehicle-mounted terminal sends an early warning command.

本发明通过分析远程车载终端上传的数据，来判定驾驶员是否疲劳驾驶，并为驾驶员搜素供其休息的停车点。因此，本发明不仅能够提醒驾驶员处于疲劳驾驶状态，而且还能够在驾驶员疲劳驾驶时为其搜索到最近停车点，因此进一步减小了驾驶员疲劳驾驶带来的危害。The present invention judges whether the driver is fatigued by analyzing the data uploaded by the remote vehicle-mounted terminal, and searches for a parking spot for the driver to rest. Therefore, the present invention can not only remind the driver that he is in the state of fatigue driving, but also can search for the nearest parking spot for the driver when the driver is driving fatigued, thus further reducing the harm caused by the driver's fatigue driving.

附图说明Description of drawings

下面将参照附图对本发明的具体实施方案进行更详细的说明，在附图中：Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, in the accompanying drawings:

图1是本发明一个实施例的车辆辅助驾驶系统框图；Fig. 1 is a block diagram of a vehicle assisted driving system according to an embodiment of the present invention;

图2是本发明一个实施例的车辆辅助驾驶流程图。Fig. 2 is a flow chart of vehicle assisted driving according to an embodiment of the present invention.

具体实施方式Detailed ways

图1是本发明一个实施例的车辆辅助驾驶系统框图，该车辆辅助系统包括监控平台110和车载终端120。FIG. 1 is a block diagram of a vehicle assisted driving system according to an embodiment of the present invention. The vehicle assisted system includes a monitoring platform 110 and a vehicle terminal 120 .

车载终端120是一个GPS车载终端，包括车辆信息获取模块121、报警模块122和提示休息模块123。The vehicle-mounted terminal 120 is a GPS vehicle-mounted terminal, which includes a vehicleinformation acquisition module 121 , analarm module 122 and a prompt rest module 123 .

车辆信息获取模块121用于定期向GPS定位卫星获取该车载终端120所属车辆的经纬度信息，并将该经纬度信息以无线的方式发送至监控平台110。The vehicleinformation acquiring module 121 is used to periodically acquire the latitude and longitude information of the vehicle to which the vehicle-mounted terminal 120 belongs from the GPS positioning satellite, and send the latitude and longitude information to the monitoring platform 110 in a wireless manner.

报警模块122在监控平台110发出预警命令时发出报警声音以提示驾驶员已疲劳驾驶。Thealarm module 122 sends out an alarm sound when the monitoring platform 110 issues an early warning command to remind the driver that the driver is fatigued.

提示休息模块123在驾驶员出现驾驶疲劳时，基于监控平台110搜索到的停车点，提示驾驶员距离该车辆最近的停车点地址，并提示驾驶员下车休息。本实施例所指停车点是供驾驶员休息的停靠地点，如高速公路休息服务区等。The prompt rest module 123 prompts the driver the address of the nearest parking spot to the vehicle based on the parking spots searched by the monitoring platform 110 and prompts the driver to get off and rest when the driver is fatigued. The parking spot referred to in this embodiment is a place of rest for the driver, such as a highway rest service area and the like.

需要说明的是，报警模块122、提示休息模块123也可以采用文字等形式实现提醒功能。此外，报警模块122和提示休息模块123也可以采用同一模块，如其通过同一模块以不同的语音形式提醒驾驶者是疲劳驾驶或提示驾驶员到停车点休息。It should be noted that thealarm module 122 and the prompt rest module 123 can also implement the reminder function in the form of text or the like. In addition, thealarm module 122 and the prompt rest module 123 can also use the same module, such as reminding the driver of fatigue driving or prompting the driver to stop for a rest in different voice forms through the same module.

监控平台110包括注册模块111、设置模块112、疲劳驾驶检测模块113、停车点搜索模块114和数据库115。The monitoring platform 110 includes a registration module 111 , a setting module 112 , a fatigue driving detection module 113 , a parking spot search module 114 and a database 115 .

注册模块111用于注册车载终端120所属车辆。设置模块112用于配置车载终端120的相关参数，包括配置疲劳驾驶参数、车载终端采集数据的频率、车辆行驶线路等。疲劳驾驶检测模块113用于检测驾驶员是否处于疲劳驾驶状态，包括检测驾驶员连续驾驶车辆的时间、驾驶车辆的路线偏移程度、车速大小，并在检测到驾驶员处于疲劳驾驶状态时以无线方式发送预警命令至车载终端120。停车点搜索模块114采用最短路径算法得到离车辆最近的停车点，并将该信息以无线的方式发送至车载终端120。数据库115用于存储设置的参数、中间数据、计算结果等。The registration module 111 is used for registering the vehicle to which the vehicle-mounted terminal 120 belongs. The setting module 112 is used to configure related parameters of the vehicle-mounted terminal 120, including configuration of fatigue driving parameters, frequency of data collection by the vehicle-mounted terminal, vehicle driving route, and the like. The fatigue driving detection module 113 is used to detect whether the driver is in a fatigue driving state, including detecting the time the driver continuously drives the vehicle, the degree of route deviation of the driving vehicle, and the speed of the vehicle, and when detecting that the driver is in the fatigue driving state, wirelessly Send an early warning command to the vehicle-mounted terminal 120 in a manner. The parking spot search module 114 uses the shortest path algorithm to obtain the nearest parking spot to the vehicle, and sends the information to the vehicle-mounted terminal 120 in a wireless manner. The database 115 is used to store set parameters, intermediate data, calculation results and the like.

图2是本发明一个实施例的车辆辅助驾驶流程图。Fig. 2 is a flow chart of vehicle assisted driving according to an embodiment of the present invention.

在步骤210，通过监控平台110注册车载终端120所属车辆，以便该车载终端120能够与监控平台110通过无线方式交互信息。Instep 210 , the vehicle to which the vehicle-mounted terminal 120 belongs is registered through the monitoring platform 110 , so that the vehicle-mounted terminal 120 can exchange information with the monitoring platform 110 in a wireless manner.

在步骤220，通过监控平台110设置注册后的该车载终端120的相关参数，包括设置车载终端采集数据的频率、疲劳驾驶参数及车辆行驶线路。Instep 220 , set relevant parameters of the registered vehicle terminal 120 through the monitoring platform 110 , including setting frequency of data collection by the vehicle terminal, fatigue driving parameters and vehicle driving route.

具体地，车载终端采集数据的频率为车载终端采集其所属车辆经纬度信息的频率，即车载终端多长时间内采集一次该车辆的经纬度信息。Specifically, the frequency at which the vehicle-mounted terminal collects data is the frequency at which the vehicle-mounted terminal collects the latitude and longitude information of the vehicle it belongs to, that is, how often the vehicle-mounted terminal collects the latitude and longitude information of the vehicle once.

疲劳驾驶参数为驾驶员连续驾驶车辆的持续时间，如连续驾驶3小时为疲劳驾驶。The fatigue driving parameter is the duration of the driver's continuous driving of the vehicle, such as continuous driving for 3 hours is fatigue driving.

此外，由于长途客车、邮局送货车、超市送货车等车辆往往行驶线路是固定的，因此可以通过监控平台110设置车辆行驶线路，以便判断车辆在行驶过程中是否偏离预置的车辆行驶路线。In addition, since long-distance buses, post office delivery vehicles, supermarket delivery vehicles and other vehicles often have fixed driving routes, the monitoring platform 110 can be used to set vehicle driving routes so as to determine whether the vehicle deviates from the preset vehicle driving route during driving .

在步骤230，车载终端120根据监控平台110的设置定期向GPS定位卫星获取该车载终端120所属车辆的经纬度信息，并将该车辆经纬度信息发送至监控平台110。Instep 230 , the vehicle-mounted terminal 120 regularly obtains the latitude and longitude information of the vehicle to which the vehicle-mounted terminal 120 belongs from the GPS positioning satellite according to the setting of the monitoring platform 110 , and sends the vehicle's longitude and latitude information to the monitoring platform 110 .

以下所述步骤241、242、243不具有先后顺序关系，也就是说，本实施例不限定步骤241、242、243执行顺序。Steps 241 , 242 , and 243 described below do not have a sequence relationship, that is, this embodiment does not limit the execution order ofsteps 241 , 242 , and 243 .

在步骤241，监控平台110接收来自车载终端120的车辆经纬度信息，并根据该车辆经纬度的变化情况判定车辆运动状态，进而得到该车辆连续驾驶时间，若该车辆连续驾驶时间超过了由监控平台110设置的疲劳驾驶参数(如疲劳驾驶参数为3小时，该车辆连续驾驶超过3小时)，则监控平台110发送预警命令至车载终端120。Instep 241, the monitoring platform 110 receives the vehicle longitude and latitude information from the vehicle-mounted terminal 120, and judges the vehicle motion state according to the change of the vehicle longitude and latitude, and then obtains the continuous driving time of the vehicle. If the fatigue driving parameter is set (for example, the fatigue driving parameter is 3 hours, and the vehicle has been driven continuously for more than 3 hours), the monitoring platform 110 sends an early warning command to the vehicle terminal 120 .

进一步地，监控平台110根据当前时刻车辆经纬度信息及前一时刻该车辆经纬度信息得到该车辆行驶位移，并根据该车辆的前后时间差得到该车辆行驶速度。监控平台110可以通过判定该车辆行驶速度是否超过系统设定的速度阈值，进而判断该车辆是否超速，当该车辆超速时，监控平台110发送预警命令至车载终端120，以提示驾驶者车辆已超速行驶。此外，监控平台110也可以通过实时获取车辆行驶速度判定车速是否稳定，如果车速不稳，则发送报警命令至车载终端120。Further, the monitoring platform 110 obtains the traveling displacement of the vehicle according to the latitude and longitude information of the vehicle at the current moment and the latitude and longitude information of the vehicle at the previous moment, and obtains the traveling speed of the vehicle according to the time difference before and after the vehicle. The monitoring platform 110 can determine whether the vehicle speed exceeds the speed threshold set by the system, and then determine whether the vehicle is overspeeding. When the vehicle is overspeeding, the monitoring platform 110 sends an early warning command to the vehicle terminal 120 to remind the driver that the vehicle has overspeeded drive. In addition, the monitoring platform 110 can also determine whether the vehicle speed is stable by acquiring the vehicle speed in real time, and if the vehicle speed is unstable, send an alarm command to the vehicle terminal 120 .

在步骤242，监控平台110根据车载终端120采集到的该车辆经纬度信息，计算得到该车辆偏移预置线路的偏移距离，在该偏移距离超过系统设定的偏移距离阈值情况下，发送预警命令至车载终端120。Instep 242, the monitoring platform 110 calculates the offset distance of the vehicle offset from the preset route according to the latitude and longitude information of the vehicle collected by the vehicle-mounted terminal 120. When the offset distance exceeds the offset distance threshold set by the system, Send an early warning command to the vehicle terminal 120.

具体地，监控平台110根据该车辆经纬度信息计算该车辆到预置线路的垂直距离，该预置线路就是由监控平台110的设置模块112设定的车辆行驶线路。当该车辆到预置线路的垂直距离大于系统设定的距离阈值时，则该车辆已经偏离其预定行驶线路，说明驾驶员很可能已经疲劳驾驶，此时发送预警命令至车载终端120。Specifically, the monitoring platform 110 calculates the vertical distance from the vehicle to the preset route according to the latitude and longitude information of the vehicle, and the preset route is the vehicle driving route set by the setting module 112 of the monitoring platform 110 . When the vertical distance from the vehicle to the preset route is greater than the distance threshold set by the system, the vehicle has deviated from its predetermined driving route, indicating that the driver is likely to be driving with fatigue. At this time, an early warning command is sent to the vehicle-mounted terminal 120 .

在步骤243，监控平台110根据最短路径算法计算并查找停车点，具体算法如下：Instep 243, the monitoring platform 110 calculates and searches for the parking spot according to the shortest path algorithm, and the specific algorithm is as follows:

设车辆行驶路线的起始点为i，终止点为j，停车点为k，并设从起始点i到终止点j共有n个停车点k1、k2......kn，其中，n大于等于0。Assume that the starting point of the vehicle driving route is i, the ending point is j, and the parking point is k, and there are n parking points k1, k2...kn from the starting point i to the ending point j, where n is greater than is equal to 0.

首先计算从起始点i到终止点j的距离d_i，j，并计算从起始点i到停车点k1的距离d_i，k1及从停车点k1到终止点j的距离d_k1，j。First calculate the distance d_i,j from the starting point i to the ending point j, and calculate the distance d_{i,k1 from the starting point i to the parking point k1} and the distance d k1_{,j from the parking point k1 to the ending point j} .

然后判定d_i，k1与d_k1，j之和与d_i，j之间大小关系，若d(i，k1)+d(k1，j)≤d(i，j)，则直接判定该停车点k1为当前最近停车点；否则继续计算从起始点i到另一停车点k2的距离d_i，k2及从该停车点k2到终止点j的距离d_k2，j。Then determine the size relationship between the sum of d_{i, k1} and d_{k1, j} and d_{i, j} , if d(i, k1)+d(k1, j)≤d(i, j), then directly determine the parking Point k1 is the current nearest parking point; otherwise, continue to calculate the distance d_{i, k2 from the starting point i to another parking point k2} and the distance d k2_{, j from the parking point k2 to the ending point j} .

然后再判定d_i，k2与d_k2，j之和与d_i，j之间大小关系，若d(i，k2)+d(k2，j)≤d(i，j)，则直接判定该停车点k2为当前最近停车点；否则判定d_i，k1+d_k1，j与d_i，k2+d_k2，j之间大小关系，并将判定得到的最小值对应的停车点k作为当前最近停车点。Then determine the size relationship between the sum of d_{i, k2} and d_{k2, j} and d_{i, j} , if d(i, k2)+d(k2, j)≤d(i, j), then directly determine the The parking point k2 is the current nearest parking point; otherwise, determine the size relationship between d_{i, k1} + d_{k1, j} and d_{i, k2} + d_{k2, j} , and take the parking point k corresponding to the minimum value obtained by the judgment as the current nearest parking spot.

如此继续，依次遍历所有的停车点k1、k2......kn，以便找到当前最近停车点。Continuing in this way, all parking points k1, k2...kn are traversed in order to find the current nearest parking point.

在找到当前最近停车点后，以该车辆当前位置m至该当前最近停车点之间的距离为一边，并以该车辆当前位置m至终止点j之间的距离为另一边，判定由该两边组成的角度是否超过90度角，若超过90度，则说明该车辆已经错过该当前最近停车点。然后，将以上所述遍历过程得到的次最小值对应的停车点作为当前最近停车点，再比较该车辆当前位置m与该当前最近停车点k、终止点j之间组成的角度是否超过90度，从而判定该当前最近停车点是否为该车辆所需停车点。如此反复比较当前位置、当前最近停车点、终止点之间组成的角度是否超过90度角，直到查找到该车辆所需的停车点。After finding the current nearest parking point, take the distance between the current position m of the vehicle and the current nearest parking point as one side, and take the distance between the current position m of the vehicle and the end point j as the other side, and determine the distance between the two sides Whether the formed angle exceeds 90 degrees, if it exceeds 90 degrees, it means that the vehicle has missed the current nearest parking point. Then, take the parking point corresponding to the sub-minimum value obtained by the above traversal process as the current nearest parking point, and then compare whether the angle formed between the current position m of the vehicle, the current nearest parking point k, and the end point j exceeds 90 degrees , so as to determine whether the current nearest parking spot is the required parking spot for the vehicle. In this way, it is repeatedly compared whether the angle formed between the current position, the current nearest parking point, and the end point exceeds an angle of 90 degrees, until the parking point required by the vehicle is found.

在步骤250，车载终端120在接收到来自监控平台110的预警后，以语音或文字形式提醒驾驶员已经疲劳驾驶或者提示驾驶员其最近停车点地址，以便驾驶员停靠休息。Instep 250, after receiving the early warning from the monitoring platform 110, the vehicle-mounted terminal 120 reminds the driver of fatigue driving or reminds the driver of the address of the nearest parking spot in the form of voice or text, so that the driver can stop for a rest.

显而易见，在不偏离本发明的真实精神和范围的前提下，在此描述的本发明可以有许多变化。因此，所有对于本领域技术人员来说显而易见的改变，都应包括在本权利要求书所涵盖的范围之内。本发明所要求保护的范围仅由所述的权利要求书进行限定。It will be apparent that many changes may be made to the invention described herein without departing from the true spirit and scope of the invention. Therefore, all changes obvious to those skilled in the art shall be included within the scope covered by the claims. The claimed scope of the present invention is limited only by the claims set forth.

Claims (10)

1. vehicle assistant drive method, wherein, this vehicle comprises car-mounted terminal, and this car-mounted terminal carries out information interaction by wireless network and monitor supervision platform, it is characterized in that, comprising:

Step a, this car-mounted terminal be according to the latitude and longitude information of vehicle under the GPS position location satellite obtains this car-mounted terminal regularly that is provided with of described monitor supervision platform, and this vehicle latitude and longitude information is sent to this monitor supervision platform;

Step b, this monitor supervision platform calculates this vehicle according to this vehicle latitude and longitude information and continues the driving time, and/or the offset distance of this vehicle shift Preset Line, and/or search the stop that obtains for driver's rest, and when triggering early-warning conditions, this vehicle sends the early warning order to described car-mounted terminal;

Step c, this car-mounted terminal remind driver tired driving with voice or written form, and/or inform driver's stop address after the early warning order that receives from this monitor supervision platform, stop rest for the driver.

2. a kind of vehicle assistant drive method as claimed in claim 1 is characterized in that, comprises before described step a:

Steps d is registered vehicle under this car-mounted terminal by described monitor supervision platform, so that this car-mounted terminal can carry out information interaction with this monitor supervision platform.

3. a kind of vehicle assistant drive method as claimed in claim 1 is characterized in that, comprises before described step a:

Step e is provided with one or more in the frequency, fatigue driving parameter, vehicle ' circuit of this car-mounted terminal image data by described monitor supervision platform.

4. a kind of vehicle assistant drive method as claimed in claim 1 is characterized in that described step b comprises:

Step f, this monitor supervision platform obtains this Vehicle Speed according to the vehicle latitude and longitude information that car-mounted terminal gets access to;

Step g, this monitor supervision platform judge that whether this Vehicle Speed surpasses the threshold speed of default, and then judge whether this vehicle exceeds the speed limit, and when this overspeed of vehicle, then this vehicle has triggered the early warning order;

Step h, this monitor supervision platform obtains Vehicle Speed in real time, and judges whether the speed of a motor vehicle is stable, if speed of a motor vehicle shakiness, then this vehicle has triggered the early warning order.

5. a kind of vehicle assistant drive method as claimed in claim 1 is characterized in that, the calculating of offset distance comprises among the described step b:

Step I, this monitor supervision platform calculates the vertical range of this vehicle to Preset Line according to this vehicle latitude and longitude information, when this vehicle to the vertical range of Preset Line during greater than distance threshold, then this vehicle has triggered the early warning order;

Wherein, described Preset Line is the vehicle ' circuit of being set by monitor supervision platform.

6. a kind of vehicle assistant drive method as claimed in claim 1 is characterized in that searching of stop comprises among the described step b:

Step j calculates each stop to Preset Line starting point distance (d_{I, k}) arrive this Preset Line terminating point distance (d with corresponding stop_{K, j}) sum (d_{I, k}+ d_{K, j});

Step r, the size of each and the value that obtain of comparison step j successively, thereby obtain minimum and value and with this minimum and the corresponding stop of value, and with this stop as the current stop that supplies driver's rest.

7. a kind of vehicle assistant drive method as claimed in claim 6 is characterized in that, comprises before the step r after described step j:

Step p calculates the distance (d of the starting point of described Preset Line to terminating point_{I, j});

Step q, determination step j obtains and value (d_{I, k}+ d_{K, j}) distance (d that obtains with step p_{I, j}) between magnitude relationship, when d (i, k)+d (k, j)≤(i in the time of j), judges that directly the corresponding stop of this k value is current stop of having a rest for the driver, and skips described step r d; Wherein, the k value is got n from 0, and n is the integer greater than 0.

8. as claim 6 or 7 described a kind of vehicle assistant drive methods, it is characterized in that, after finding current stop of having a rest, comprise for the driver:

Step s, is one side with described current stop to the distance between this vehicle current location, and be another side with the distance of this vehicle current location between the described terminating point, the size at angle is made of in judgement these both sides, and then judge whether this vehicle current location has surpassed described current stop, thereby determine whether this current stop is the required stop of driver.

9. a vehicle DAS (Driver Assistant System) comprises car-mounted terminal and monitor supervision platform, and this car-mounted terminal and this monitor supervision platform are by wireless mode interactive information;

Described car-mounted terminal is used for the latitude and longitude information of vehicle under the GPS position location satellite obtains this car-mounted terminal regularly, and this vehicle latitude and longitude information is sent to this monitor supervision platform; And this car-mounted terminal also is used to receive the early warning order from described monitor supervision platform, and reminds driver tired driving based on this early warning order, and/or informs driver's stop address, stops rest for the driver;

Described monitor supervision platform is used to calculate this vehicle and continues the driving time, and/or the offset distance of this vehicle shift Preset Line, and/or searches the stop that obtains for driver's rest, and sends the early warning order to described car-mounted terminal when this vehicle triggers early-warning conditions.

10. a kind of vehicle DAS (Driver Assistant System) as claimed in claim 9, it is characterized in that, described monitor supervision platform comprises module is set, and this is provided with the one or more of frequency that module is used for disposing fatigue driving parameter, car-mounted terminal image data, vehicle ' circuit.

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