WO2017124540A1 - Method for determining safe vehicle distance according to vehicle speed, and safe vehicle distance system - Google Patents
Method for determining safe vehicle distance according to vehicle speed, and safe vehicle distance system Download PDFInfo
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- WO2017124540A1 WO2017124540A1 PCT/CN2016/071899 CN2016071899W WO2017124540A1 WO 2017124540 A1 WO2017124540 A1 WO 2017124540A1 CN 2016071899 W CN2016071899 W CN 2016071899W WO 2017124540 A1 WO2017124540 A1 WO 2017124540A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
Definitions
- the invention belongs to the field of vehicle safety, and in particular relates to a method for judging a safe distance according to a vehicle speed and a safety distance system.
- Rear-end collision refers to the behavior in which the rear vehicle head collides with the front vehicle tail when the vehicle traveling in the same lane follows. Mainly because the follow-up distance is less than the minimum safe distance and the driver's slow response or poor braking system performance.
- many drivers know that the chain reaction caused by the rear-end collision in the fast lane is the strongest: because the speed is generally faster, once there are two cars rear-end collision, it is likely to be implicated in the next one. Called by people The common phenomenon of 'string car'. Of course, we can't just go through the fast lane because of the rear-end collision in the fast lane.
- the safe distance to drive in the city has an easy-to-use standard, that is, how many kilometers per hour at the current driving speed, how many meters are left in front of the car, and novices and slower responders should leave some distance as appropriate.
- the current roads generally only have warning signs on the expressway or the distance signs on the roads to remind the driver to pay attention to the distance.
- the distance sensor continuously scans the road ahead of the vehicle, while the wheel speed sensor collects the vehicle speed signal.
- the embodiment of the invention accurately calculates the safety distance with the preceding vehicle when the current vehicle is running It is necessary to provide a correspondence relationship between the preset vehicle speed and the safety distance between the traveling vehicles.
- the distance between the two workshops is too close to prompt the user, thereby avoiding the distance between the front and the back workshops being too close. a traffic accident that leads to a rear-end collision in the event of an emergency .
- a method for judging a safe distance based on a vehicle speed comprising the following steps:
- the embodiment of the invention further provides a safety distance system, the safety distance system comprising:
- a recording unit configured to record one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
- a detecting unit configured to detect a driving speed of the vehicle and a distance from the preceding vehicle when the vehicle is traveling;
- a determining unit wherein the input end is connected to the output end of the recording unit and the output end of the detecting unit is connected Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;
- the prompting unit has an input end connected to the output end of the determining unit, and is used to prompt the user to maintain a safe vehicle distance when the current vehicle distance is less than the safe vehicle distance corresponding to the traveling speed of the vehicle.
- the invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles.
- the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close.
- FIG. 1 is a schematic flow chart of a method for determining a safe distance according to a vehicle speed according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of a safety distance system according to an embodiment of the present invention.
- FIG. 1 is a schematic flow chart of a method for determining a safe distance according to a vehicle speed according to an embodiment of the present invention
- step S100 Recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
- the traffic control department explained that when the speed exceeds 100 kilometers per hour, the safety distance is more than 100 meters, and when the motor speed is 60 When driving, the distance between vehicles should be more than 60 meters; when the speed is 80 kilometers, the distance between vehicles is more than 80 meters, and so on.
- step S101 when the vehicle is traveling, the traveling speed of the vehicle and the distance to the preceding vehicle are detected.
- the distance sensor continuously scans the road ahead of the vehicle, and the wheel speed sensor collects the vehicle speed signal.
- step S102 it is determined whether the current distance is less than the safe distance corresponding to the running speed of the vehicle; if not, the process proceeds to step S103. , remains as it is; if so, proceeds to step S104 to prompt the user to maintain a safe distance.
- the user can be prompted by an alarm sound or by a car computer screen.
- the invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles.
- the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close.
- FIG. 2 is a schematic structural diagram of a safety distance system according to an embodiment of the present invention, where the safety distance system includes:
- Recording unit 21 And for recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
- the detecting unit 22 is configured to detect a running speed of the vehicle and a distance from the preceding vehicle when the vehicle is traveling;
- a determining unit 23 whose input end is connected to the output end of the recording unit 21 and the output end of the detecting unit 22 is used for Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;
- Prompt unit 24 its input end and the judging unit 23
- the output terminal is connected, and is used to prompt the user to maintain a safe distance when the current vehicle distance is less than the safety distance corresponding to the traveling speed of the vehicle.
- the user is in the recording unit 21 Recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance, the detecting unit 22
- the determining unit 23 determines whether the current distance is less than the safe distance corresponding to the traveling speed of the vehicle, and if not, remains as it is, and if so, the prompting unit 24 Prompt the user to maintain a safe distance.
- the invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles.
- the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close.
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Abstract
A method for determining a safe vehicle distance according to a vehicle speed, and a safe vehicle distance system. The method comprises: recording one or more speed intervals, a safe vehicle distance corresponding to each of the speed intervals, and a matching relationship between the speed intervals and the safe vehicle distances; when a vehicle is travelling, detecting the vehicle travelling speed and the distance to a vehicle ahead; determining whether the current vehicle distance is less than a safe vehicle distance corresponding to the vehicle travelling speed; if not, keeping the distance as such; and if so, prompting a user to keep a safe vehicle distance. By pre-setting a corresponding relationship between a vehicle speed and a safe distance between travelling vehicles, when a vehicle runs at a certain speed and the distance between the vehicle and the vehicle ahead is too close, a user is prompted to act; thereby a rear-end traffic accident, caused by the distance between a vehicle and the vehicle ahead being too close in an emergency situation, is avoided.
Description
本发明属于车辆安全领域，尤其是涉及 一种根据车速判断安全车距的方法以及安全车距系统 。 The invention belongs to the field of vehicle safety, and in particular relates to a method for judging a safe distance according to a vehicle speed and a safety distance system.
追尾是指同车道行驶的车辆尾随而行时，后车车头与前车车尾相撞的行为。主要由于跟进间距小于最小安全间距和驾驶员反应迟缓或制动系统性能不良所致。提起追尾事故，很多驾驶员都知道，在快车道上发生的追尾事故所产生的连锁反应最为强烈：因为车速普遍较快，所以一旦有两车追尾，后面很可能就会牵连一串，这也就是被人们称为
' 串车 ' 的常见现象。当然，我们不可能因为快车道内易发生追尾事故就 ' 因噎废食 ' 不走快车道。
Rear-end collision refers to the behavior in which the rear vehicle head collides with the front vehicle tail when the vehicle traveling in the same lane follows. Mainly because the follow-up distance is less than the minimum safe distance and the driver's slow response or poor braking system performance. When it comes to rear-end collisions, many drivers know that the chain reaction caused by the rear-end collision in the fast lane is the strongest: because the speed is generally faster, once there are two cars rear-end collision, it is likely to be implicated in the next one. Called by people
The common phenomenon of 'string car'. Of course, we can't just go through the fast lane because of the rear-end collision in the fast lane.
一般情况下都会要求两车之间保持一定的安全距离，没有距离，驾驶者就损失了反应的时间，而再优秀的车辆制动也失去了发挥作用的舞台。要想防止发生追尾事故，只要距离足够就可以逃过。当然，在城市开车的安全距离有个简单易用的标准，那就是当前驾驶时的时速多少公里，就在车前留出多少米，新手和反应较慢的人还要再酌情多留一些距离。
Under normal circumstances, it is required to maintain a certain safety distance between the two vehicles. Without the distance, the driver loses the reaction time, and the excellent vehicle brake also loses the stage of its function. To prevent a rear-end collision, you can escape if you have enough distance. Of course, the safe distance to drive in the city has an easy-to-use standard, that is, how many kilometers per hour at the current driving speed, how many meters are left in front of the car, and novices and slower responders should leave some distance as appropriate.
当前道路一般只有在高速公路会有警示牌或者路面设置车距标志来提示驾驶员注意保持车距，但是在城市道路或者车速比较快的环城道路都没有标识，而且由于这部分道路车多，情况多变，因此这些道路经常发生追尾事故，轻者造成交通拥堵，重者造成生命财产损失甚至是连环追尾。
The current roads generally only have warning signs on the expressway or the distance signs on the roads to remind the driver to pay attention to the distance. However, there are no signs on the urban roads or the roads with faster speeds, and because there are many roads in this part of the road, The situation is changeable. Therefore, these roads often have rear-end collisions. Light traffic causes traffic jams, and heavy ones cause loss of life and property and even serial rear-end collisions.
目前，车距传感器（雷达）持续扫描车辆前方道路，同时轮速传感器采集车速信号。 Currently, the distance sensor (radar) continuously scans the road ahead of the vehicle, while the wheel speed sensor collects the vehicle speed signal.
综上，需要针对当前车辆行驶时准确计算与前车保持安全距离的情况
，需要提供一种过预设车速与行驶车辆之间安全距离的对应关系，当车辆在一定速度下行驶时，前后两辆车间距离过近则提示用户，从而避免因前后两车间距离过近，发生紧急情况时导致追尾的交通事故
。 In summary, it is necessary to accurately calculate the safe distance from the preceding vehicle when the current vehicle is driving.
It is necessary to provide a correspondence relationship between the preset vehicle speed and the safety distance between the traveling vehicles. When the vehicle is traveling at a certain speed, the distance between the two workshops is too close to prompt the user, thereby avoiding the distance between the front and the back workshops being too close. a traffic accident that leads to a rear-end collision in the event of an emergency
.
本发明实施例针对当前车辆行驶时准确计算与前车保持安全距离的情况
，需要提供一种过预设车速与行驶车辆之间安全距离的对应关系，当车辆在一定速度下行驶时，前后两辆车间距离过近则提示用户，从而避免因前后两车间距离过近，发生紧急情况时导致追尾的交通事故
。 The embodiment of the invention accurately calculates the safety distance with the preceding vehicle when the current vehicle is running
It is necessary to provide a correspondence relationship between the preset vehicle speed and the safety distance between the traveling vehicles. When the vehicle is traveling at a certain speed, the distance between the two workshops is too close to prompt the user, thereby avoiding the distance between the front and the back workshops being too close. a traffic accident that leads to a rear-end collision in the event of an emergency
.
本发明是这样实现的： 一种根据车速判断安全车距的方法 ，包括以下步骤： The present invention is achieved as follows: A method for judging a safe distance based on a vehicle speed, comprising the following steps:
记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系
; Recording one or more speed intervals, safety distance corresponding to each speed interval, and matching relationship between each speed interval and the safety distance
;
当车辆行驶时，检测车辆行驶速度及与前车距离； When the vehicle is running, detecting the speed of the vehicle and the distance from the preceding vehicle;
判断当前车距是否小于所述车辆行驶速度对应的安全车距； Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;
若否，保持原状； If not, remain as it is;
若是，提示用户保持安全车距。 If yes, prompt the user to maintain a safe distance.
本发明实施例还提供了安全车距系统，所述安全车距系统包括： The embodiment of the invention further provides a safety distance system, the safety distance system comprising:
记录单元，检测单元，判断单元，提示单元，其中： a recording unit, a detecting unit, a judging unit, and a prompting unit, wherein:
记录单元，用于记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系；
a recording unit, configured to record one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
检测单元，用于当车辆行驶时，检测车辆行驶速度及与前车距离； a detecting unit, configured to detect a driving speed of the vehicle and a distance from the preceding vehicle when the vehicle is traveling;
判断单元，其输入端与所述记录单元输出端连接及所述检测单元输出端连接， 用于
判断当前车距是否小于所述车辆行驶速度对应的安全车距； a determining unit, wherein the input end is connected to the output end of the recording unit and the output end of the detecting unit is connected
Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;
提示单元，其输入端与所述判断单元输出端连接，用于当前车距小于所述车辆行驶速度对应的安全车距时，提示用户保持安全车距。
The prompting unit has an input end connected to the output end of the determining unit, and is used to prompt the user to maintain a safe vehicle distance when the current vehicle distance is less than the safe vehicle distance corresponding to the traveling speed of the vehicle.
该发明通过预设车速与行驶车辆之间安全距离的对应关系，当车辆在一定速度下行驶时，前后两辆车间距离过近则提示用户，从而避免因前后两车间距离过近，发生紧急情况时导致追尾的交通事故。
The invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles. When the vehicle is traveling at a certain speed, the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close. A traffic accident that leads to a rear-end collision.
图 1 是本发明实施例提供的一种根据车速判断安全车距的方法 的流程示意图 ； 1 is a schematic flow chart of a method for determining a safe distance according to a vehicle speed according to an embodiment of the present invention;
图 2 是本发明实施例提供的安全车距系统的结构示意图。 2 is a schematic structural view of a safety distance system according to an embodiment of the present invention.
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
图 1 是本发明实施例提供的一种根据车速判断安全车距的方法 的流程示意图
，为了便于说明，只示出了与本发明实施例相关的部分。 FIG. 1 is a schematic flow chart of a method for determining a safe distance according to a vehicle speed according to an embodiment of the present invention; FIG.
For the convenience of description, only parts related to the embodiment of the present invention are shown.
在步骤 S100 中 ,
记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系 ; 。 In step S100,
Recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
交管部门解释，车速超过每小时 100 公里时，安全车距为 100 米以上，当机动车时速为 60
公里时，行车间距应为 60 米以上；时速为 80 公里时，行车间距为 80 米以上，以此类推。 The traffic control department explained that when the speed exceeds 100 kilometers per hour, the safety distance is more than 100 meters, and when the motor speed is 60
When driving, the distance between vehicles should be more than 60 meters; when the speed is 80 kilometers, the distance between vehicles is more than 80 meters, and so on.
在步骤 S101 中 , 当车辆行驶时，检测车辆行驶速度及与前车距离。 In step S101, when the vehicle is traveling, the traveling speed of the vehicle and the distance to the preceding vehicle are detected.
该技术为现有技术，车距传感器（雷达）持续扫描车辆前方道路，同时轮速传感器采集车速信号。 This technology is prior art, the distance sensor (radar) continuously scans the road ahead of the vehicle, and the wheel speed sensor collects the vehicle speed signal.
在步骤 S102 中，判断当前车距是否小于所述车辆行驶速度对应的安全车距；若否，进入步骤 S103
，保持原状；若是，进入步骤 S104 ，提示用户保持安全车距。 In step S102, it is determined whether the current distance is less than the safe distance corresponding to the running speed of the vehicle; if not, the process proceeds to step S103.
, remains as it is; if so, proceeds to step S104 to prompt the user to maintain a safe distance.
可以通过报警声或者通过车载电脑屏幕提示用户。 The user can be prompted by an alarm sound or by a car computer screen.
该发明通过预设车速与行驶车辆之间安全距离的对应关系，当车辆在一定速度下行驶时，前后两辆车间距离过近则提示用户，从而避免因前后两车间距离过近，发生紧急情况时导致追尾的交通事故。
The invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles. When the vehicle is traveling at a certain speed, the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close. A traffic accident that leads to a rear-end collision.
图 2 是本发明实施例提供的安全车距系统的结构示意图，所述安全车距系统包括： 2 is a schematic structural diagram of a safety distance system according to an embodiment of the present invention, where the safety distance system includes:
记录单元 21 ，检测单元 22 ，判断单元 23 ，提示单元 24 ，其中： The recording unit 21, the detecting unit 22, the determining unit 23, and the prompting unit 24, wherein:
记录单元 21
，用于记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系； Recording unit 21
And for recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;
检测单元 22 ，用于当车辆行驶时，检测车辆行驶速度及与前车距离； The detecting unit 22 is configured to detect a running speed of the vehicle and a distance from the preceding vehicle when the vehicle is traveling;
判断单元 23 ，其输入端与所述记录单元 21 输出端连接及所述检测单元 22 输出端连接， 用于
判断当前车距是否小于所述车辆行驶速度对应的安全车距； a determining unit 23, whose input end is connected to the output end of the recording unit 21 and the output end of the detecting unit 22 is used for
Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;
提示单元 24 ，其输入端与所述判断单元 23
输出端连接，用于当前车距小于所述车辆行驶速度对应的安全车距时，提示用户保持安全车距。 Prompt unit 24, its input end and the judging unit 23
The output terminal is connected, and is used to prompt the user to maintain a safe distance when the current vehicle distance is less than the safety distance corresponding to the traveling speed of the vehicle.
其工作原理是：用户在记录单元 21
记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系，检测单元 22
当车辆行驶时，检测车辆行驶速度及与前车距离，判断单元 23 判断当前车距是否小于所述车辆行驶速度对应的安全车距，如果否，保持原状，如果是，提示单元 24
提示用户保持安全车距。 Its working principle is: the user is in the recording unit 21
Recording one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance, the detecting unit 22
When the vehicle is running, detecting the traveling speed of the vehicle and the distance from the preceding vehicle, the determining unit 23 determines whether the current distance is less than the safe distance corresponding to the traveling speed of the vehicle, and if not, remains as it is, and if so, the prompting unit 24
Prompt the user to maintain a safe distance.
该发明通过预设车速与行驶车辆之间安全距离的对应关系，当车辆在一定速度下行驶时，前后两辆车间距离过近则提示用户，从而避免因前后两车间距离过近，发生紧急情况时导致追尾的交通事故。
The invention adopts the corresponding relationship between the preset vehicle speed and the safety distance between the traveling vehicles. When the vehicle is traveling at a certain speed, the distance between the two workshops is too close to prompt the user, thereby avoiding the emergency situation due to the distance between the two workshops being too close. A traffic accident that leads to a rear-end collision.
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the scope of the present invention. Inside.
Claims (2)
- 一种根据车速判断安全车距的方法，其特征在于，所述方法包括如下步骤： A method for judging a safe distance according to a vehicle speed, characterized in that the method comprises the following steps:记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系 ;Recording one or more speed intervals, safety distance corresponding to each speed interval, and matching relationship between each speed interval and the safety distance ;当车辆行驶时，检测车辆行驶速度及与前车距离；When the vehicle is running, detecting the speed of the vehicle and the distance from the preceding vehicle;判断当前车距是否小于所述车辆行驶速度对应的安全车距；Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;若否，保持原状；If not, remain as it is;若是，提示用户保持安全车距。If yes, prompt the user to maintain a safe distance.
- 一种安全车距系统，其特征在于，所述安全车距系统包括：A safety distance system, characterized in that the safety distance system comprises:记录单元，检测单元，判断单元，提示单元，其中：a recording unit, a detecting unit, a judging unit, and a prompting unit, wherein:记录单元，用于记录一个或一个以上的速度区间、各速度区间对应的安全车距，以及各速度区间与所述安全车距的匹配关系；a recording unit, configured to record one or more speed intervals, a safety distance corresponding to each speed interval, and a matching relationship between each speed interval and the safety distance;检测单元，用于当车辆行驶时，检测车辆行驶速度及与前车距离；a detecting unit, configured to detect a driving speed of the vehicle and a distance from the preceding vehicle when the vehicle is traveling;判断单元，其输入端与所述记录单元输出端连接及所述检测单元输出端连接， 用于 判断当前车距是否小于所述车辆行驶速度对应的安全车距；a determining unit, wherein the input end is connected to the output end of the recording unit and the output end of the detecting unit is connected Determining whether the current distance is less than a safe distance corresponding to the speed of the vehicle;提示单元，其输入端与所述判断单元输出端连接，用于当前车距小于所述车辆行驶速度对应的安全车距时，提示用户保持安全车距。The prompting unit has an input end connected to the output end of the determining unit, and is used to prompt the user to maintain a safe vehicle distance when the current vehicle distance is less than the safe vehicle distance corresponding to the traveling speed of the vehicle.
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| PCT/CN2016/071899 WO2017124540A1 (en) | 2016-01-24 | 2016-01-24 | Method for determining safe vehicle distance according to vehicle speed, and safe vehicle distance system |
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