技术领域technical field
本发明涉及地面交通技术领域，尤其涉及一种交通事故侦测与预警系统。The invention relates to the technical field of ground traffic, in particular to a traffic accident detection and early warning system.
背景技术Background technique
虽然近些年来，导致死亡的驾驶数据有所改善，但驾驶汽车仍然是我们日常中进行的最危险的活动之一。因为在大多数人们的生活中，开车或乘车俨然已成为人们日常生活中不可或缺的一部分。在2013年里，仅美国一个国家共有4735名乘客和司机死于车祸，其中平均每天死亡的人数超过12人。据美国国家公路交通安全局统计，超过2/3的司机在他们的一生中都会涉及到交通事故，更糟糕的是一个驾驶员出事故的频率约为每10年一次。即便是世界上最棒的车手，也无法控制其他人的驾驶。While the number of driving fatalities has improved in recent years, driving a car remains one of the most dangerous activities we do every day. Because in most people's lives, driving or riding in a car has become an indispensable part of people's daily life. In 2013, 4,735 passengers and drivers died in car accidents in the United States alone, with an average of more than 12 deaths per day. According to statistics from the National Highway Traffic Safety Administration of the United States, more than two-thirds of drivers will be involved in traffic accidents in their lifetime, and what's worse is that the frequency of a driver's accident is about once every 10 years. Even the best driver in the world can't control what other people are driving.
目前，车辆自动应急反应系统能够通知急救中心已发生的车辆交通事故。该系统利用定位装置，如GPS能够定位事故大致方位。其控制电路包括信号产生装置，产生一个包含位置信息的编码信号。在发生交通事故时，报警器立即发送一个包含其位置的报警信号给卫星，卫星再将报警信号传送给急救中心。低功耗的声光告警信号发生器同时产生一个连续或周期的告警信号。但是，该系统是基于固定网络建立的，它仅将信息编码，传送给急救中心的固定的接收站，该系统的结构不能改变。此外，它并不能将报警信号提前传送给附近的司机或行人，不能提供避免追尾的方法。此外，它不能提供从附近的人们或机构得到帮助的方法；也就是说，它是一套仅仅涉及驾驶者的系统。Currently, automatic vehicle emergency response systems are able to notify emergency centers of vehicle accidents that have occurred. The system utilizes a positioning device, such as GPS, to be able to locate the approximate location of the accident. Its control circuit includes signal generating means to generate a coded signal containing position information. When a traffic accident occurs, the alarm immediately sends an alarm signal including its location to the satellite, and the satellite transmits the alarm signal to the emergency center. The low-power acousto-optic alarm signal generator simultaneously generates a continuous or periodic alarm signal. However, this system is established based on a fixed network, it only encodes information and transmits it to a fixed receiving station in an emergency center, and the structure of this system cannot be changed. In addition, it does not provide early warning signals to nearby drivers or pedestrians, and does not provide a way to avoid rear-end collisions. Furthermore, it does not provide a way to get help from nearby people or institutions; that is, it is a system that only involves the driver.
发明内容Contents of the invention
本发明的目的是提供一种交通事故侦测与预警系统，能够快速侦测交通事故，并发出预警信号，避免追尾及其它形式的伤害，且结合不同的对象来提供一种快速有效的医疗援助。The purpose of the present invention is to provide a traffic accident detection and early warning system, which can quickly detect traffic accidents, and send out early warning signals, avoid rear-end collisions and other forms of injury, and provide a fast and effective medical assistance in combination with different objects .
本发明的目的是通过以下技术方案实现的：The purpose of the present invention is achieved through the following technical solutions:
一种交通事故侦测与预警系统，包括：环境监测模块、推理模块、动态网络构建模块与服务模块；其中：A traffic accident detection and early warning system, including: an environmental monitoring module, a reasoning module, a dynamic network construction module and a service module; wherein:
所述环境监测模块，用于获取并存储车辆的环境数据，以及司机提供的相关信息；所述司机提供的相关信息包括：司机期望联系的用户及其之间的关系；The environmental monitoring module is used to obtain and store the environmental data of the vehicle and the relevant information provided by the driver; the relevant information provided by the driver includes: the users the driver expects to contact and the relationship between them;
所述推理模块，用于根据司机是否主动触发报警或根据车辆的环境数据来推断是否有交通事故发生；当推断有交通事故发生时，根据车辆的环境数据以及司机提供的相关信息计算告警的网络对象列表，并发送事故报警信号与告警的网络对象列表至动态网络构建模块；The reasoning module is used to infer whether there is a traffic accident according to whether the driver actively triggers the alarm or according to the environmental data of the vehicle; when it is inferred that a traffic accident occurs, calculate the alarm network according to the environmental data of the vehicle and the relevant information provided by the driver object list, and send the accident alarm signal and alarm network object list to the dynamic network building block;
所述动态网络构建模块，用于根据车辆的环境数据以及告警的网络对象列表来构建一个动态网络，并按照告警的网络对象列表的先后顺序向对应的网络对象发送报警信号；The dynamic network construction module is used to construct a dynamic network according to the environmental data of the vehicle and the network object list of the alarm, and send the alarm signal to the corresponding network object according to the sequence of the network object list of the alarm;
所述服务模块设置在网络对象中，用于接收报警信号并发出报警提示。The service module is set in the network object and is used for receiving alarm signals and sending out alarm prompts.
进一步的，所述车辆的环境数据包括如下因素：车辆位置、车辆状态、传感器采集到的加速度、声音与图像，以及当前时间。Further, the environmental data of the vehicle includes the following factors: vehicle position, vehicle state, acceleration collected by sensors, sound and image, and current time.
进一步的，根据司机是否主动触发报警或根据车辆的环境数据来推断是否有交通事故发生，即在满足如下公式时，推断发送交通事故，并发送报警信号：Further, according to whether the driver actively triggers the alarm or according to the environmental data of the vehicle to infer whether there is a traffic accident, that is, when the following formula is satisfied, the traffic accident is inferred and the alarm signal is sent:
IF(T＝true)|∑iwiβi＞θ，s.t 0＜wi＜1,∑wi＝1,THEN报警信号IF(T=true)|∑i wi βi >θ, st 0<wi <1, ∑wi =1, THEN alarm signal
其中，T表示司机触发报警，βi表示传感器采集到的声音、图像或加速度，wi表示βi对应的权重系数，θ为阈值。Among them, T indicates that the driver triggers an alarm, βi indicates the sound, image or acceleration collected by the sensor, wi indicates the weight coefficient corresponding to βi , and θ is the threshold.
进一步的，所述根据车辆的环境数据以及司机提供的相关信息计算告警的网络对象列表包括：Further, the network object list for calculating the warning according to the environmental data of the vehicle and the relevant information provided by the driver includes:
根据车辆的环境数据以及司机提供的相关信息确定告警的网络对象，并对各个告警的网络对象进行评估，根据评估值对各个告警的网络对象进行排序获得告警的网络对象列表；评估公式如下：According to the environmental data of the vehicle and the relevant information provided by the driver, determine the network object for warning, and evaluate each network object for warning, and sort the network objects for warning according to the evaluation value to obtain a list of network objects for warning; the evaluation formula is as follows:
V＝w1α+w2γ+w3δ,w1+w2+w3＝1；V=w1 α+w2 γ+w3 δ, w1 +w2 +w3 =1;
其中，α表示告警的网络对象与发生交通事故的车辆之间的距离，w1为相应的权重系数；γ表示预先获得的告警的网络对象的服务质量，w2为相应的权重系数；δ表示告警的网络对象与发生交通事故的车辆的司机之间的关系，w3为相应的权重系数。Among them, α represents the distance between the warning network object and the vehicle in the traffic accident, w1 is the corresponding weight coefficient; γ represents the service quality of the warning network object obtained in advance, and w2 is the corresponding weight coefficient; δ represents The relationship between the network object of the alarm and the driver of the vehicle in the traffic accident, w3 is the corresponding weight coefficient.
进一步的，所述网络对象包括：配备在司机端、司机期望联系的用户端，以及行人端的移动终端，设置在医疗中心的网络终端，各类网络的物理基础设施。Further, the network objects include: the mobile terminal equipped on the driver's end, the user end that the driver expects to contact, and the pedestrian's end, the network terminal set up in the medical center, and the physical infrastructure of various networks.
由上述本发明提供的技术方案可以看出，当发生交通事故时，能够将交通事故报警信号传送给所有相联系的人或机构的系统，该系统能搜索和选择合适的设备、基础设施、行人和车辆来构成一个动态的智能系统，从而减少追尾事件及其它形式的伤害并提供快速有效的医疗救援。It can be seen from the technical solution provided by the present invention above that when a traffic accident occurs, the traffic accident warning signal can be transmitted to the system of all connected people or institutions, and the system can search and select suitable equipment, infrastructure, pedestrians, etc. And vehicles to form a dynamic intelligent system, so as to reduce rear-end collisions and other forms of injury and provide rapid and effective medical rescue.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative work.
图1为本发明实施例提供的一种交通事故侦测与预警系统的示意图；Fig. 1 is a schematic diagram of a traffic accident detection and early warning system provided by an embodiment of the present invention;
图2为本发明实施例提供的一种交通事故侦测与预警系统的工作示意图；Fig. 2 is a working diagram of a traffic accident detection and early warning system provided by an embodiment of the present invention;
图3为本发明实施例提供的一种交通事故侦测与预警系统的工作流程图。Fig. 3 is a working flow chart of a traffic accident detection and early warning system provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
图1为本发明实施例提供的一种交通事故侦测与预警系统的示意图。如图1所示，其主要包括：FIG. 1 is a schematic diagram of a traffic accident detection and early warning system provided by an embodiment of the present invention. As shown in Figure 1, it mainly includes:
环境监测模块、推理模块、动态网络构建模块与服务模块；其中：Environmental monitoring module, reasoning module, dynamic network building module and service module; among them:
所述环境监测模块，用于获取并存储车辆的环境数据，以及司机提供的相关信息；所述司机提供的相关信息包括：司机期望联系的用户及其之间的关系；The environmental monitoring module is used to obtain and store the environmental data of the vehicle and the relevant information provided by the driver; the relevant information provided by the driver includes: the users the driver expects to contact and the relationship between them;
所述推理模块，用于根据司机是否主动触发报警或根据车辆的环境数据来推断是否有交通事故发生；当推断有交通事故发生时根据车辆的环境数据以及司机提供的相关信息计算告警的网络对象列表，并发送事故报警信号与告警的网络对象列表至动态网络构建模块；The reasoning module is used to infer whether there is a traffic accident according to whether the driver actively triggers the alarm or according to the environmental data of the vehicle; when it is inferred that a traffic accident occurs, calculate the network object of the alarm according to the environmental data of the vehicle and the relevant information provided by the driver list, and send the accident alarm signal and alarm network object list to the dynamic network building block;
所述动态网络构建模块，用于根据车辆的环境数据以及告警的网络对象列表来构建一个动态网络，并按照告警的网络对象列表的先后顺序向对应的网络对象发送报警信号；The dynamic network construction module is used to construct a dynamic network according to the environmental data of the vehicle and the network object list of the alarm, and send the alarm signal to the corresponding network object according to the sequence of the network object list of the alarm;
所述服务模块设置在网络对象中，用于接收报警信号并发出报警提示。The service module is set in the network object and is used for receiving alarm signals and sending out alarm prompts.
为了便于理解，下面结合附图2-3对各个模块进行详细的说明。如图2所示，为系统工作的示意图。For ease of understanding, each module will be described in detail below with reference to FIGS. 2-3 . As shown in Figure 2, it is a schematic diagram of the system work.
1、环境监测模块。1. Environmental monitoring module.
所述环境监测模块所监控的环境指描述一个实体情况的信息；包括：客观环境与主观环境；其中，客观环境主要为车辆的环境数据，其可以包括如下因素：车辆位置、车辆状态、传感器采集到的加速度、声音与图像，以及当前时间。同时，环境监测模块获取到这些车辆的环境数据后会对其中的声音与图像等进行降噪处理。此处的车辆的环境数据可以通过配备在司机端的移动终端来采集。The environment monitored by the environmental monitoring module refers to information describing a physical situation; including: objective environment and subjective environment; wherein, the objective environment is mainly the environmental data of the vehicle, which may include the following factors: vehicle position, vehicle state, sensor acquisition The received acceleration, sound and image, and the current time. At the same time, after the environmental monitoring module acquires the environmental data of these vehicles, it will perform noise reduction processing on the sounds and images therein. The environmental data of the vehicle here can be collected through the mobile terminal equipped on the driver's end.
所述主观环境，主要由司机提供，比如，司机的喜好、司机期望联系的用户及其之间的关系等。The subjective environment is mainly provided by the driver, for example, the driver's preferences, the users the driver expects to contact and the relationship between them.
2、推理模块。2. Reasoning module.
该模块能够根据环境检测模块收集的数据推断是否有事故发生。如果环境(例如加速度传感器的数据表明出现速度锐减；声音传感器采集到碰撞声音；照相机收集到异常的照片)满足预设条件或驾驶员触发报警，紧接着推理模块发送一个事故发生信号给构建模块。This module can deduce whether there is an accident according to the data collected by the environment detection module. If the environment (for example, the data from the acceleration sensor indicates a sharp decrease in speed; the sound sensor collects the sound of collision; the camera collects abnormal photos) meets the preset conditions or the driver triggers an alarm, then the reasoning module sends an accident signal to the building module .
示例性的，当司机主动触发报警或者根据车辆的环境数据来推断有交通事故发生时，即在满足如下公式时，发送报警信号：Exemplarily, when the driver actively triggers the alarm or infers that there is a traffic accident according to the vehicle's environmental data, that is, when the following formula is satisfied, the alarm signal is sent:
IF(T＝true)|∑iwiβi＞θ，s.t 0＜wi＜1,∑wi＝1,THEN报警信号IF(T=true)|∑i wi βi >θ, st 0<wi <1, ∑wi =1, THEN alarm signal
其中，T表示司机触发报警，βi表示传感器采集到的声音、图像或加速度等因素，wi表示βi对应的权重系数(可以根据实际情况来设定)，θ为阈值。Among them, T indicates that the driver triggers an alarm, βi indicates factors such as sound, image or acceleration collected by the sensor, wi indicates the weight coefficient corresponding to βi (can be set according to the actual situation), and θ is the threshold.
同时，还根据车辆的环境数据以及司机提供的相关信息确定告警的网络对象，并对各个告警的网络对象进行评估，根据评估值对各个告警的网络对象进行排序获得告警的网络对象列表；评估公式如下：At the same time, according to the vehicle's environmental data and the relevant information provided by the driver, the network object for warning is determined, and each network object for warning is evaluated, and the list of network objects for warning is obtained by sorting the network objects for warning according to the evaluation value; the evaluation formula as follows:
V＝w1α+w2γ+w3δ,w1+w2+w3＝1；V=w1 α+w2 γ+w3 δ, w1 +w2 +w3 =1;
其中，α表示告警的网络对象与发生交通事故的车辆之间的距离，w1为相应的权重系数；γ表示预先获得的告警的网络对象的服务质量(可以根据预先与各个网络对象通信时的响应时间或者各个网络对象服务专业度等因素估算)，w2为相应的权重系数；δ表示告警的网络对象与发生交通事故的车辆的司机之间的关系，w3为相应的权重系数；这三个权重系数可以根据实际情况来设定。Among them, α represents the distance between the warning network object and the vehicle in which the traffic accident occurred,w1 is the corresponding weight coefficient; γ represents the service quality of the warning network object obtained in advance (it can be based on Response time or service professionalism of each network object, etc.), w2 is the corresponding weight coefficient; δ represents the relationship between the alarming network object and the driver of the vehicle in the traffic accident, w3 is the corresponding weight coefficient; The three weight coefficients can be set according to the actual situation.
3、动态网络构建模块3. Dynamic Network Building Blocks
其用于构建动态网络。动态网络意味着它的网络结构并非是固定的。环境检测模块可以检测并提供一系列可用的服务、设备和网络，从近距离通信(如WLANs和6LoWPANs)到远程通信(如任何类型的蜂窝网络)的各种网络都可以是基于物联网交通事故侦测预警系统中的物理基础设施。当构建模块收到事故发生信号和告警的网络对象列表，它利用从环境检测模块中获得的环境变量和从推理模块中获得的对象列表来构成并管理动态网络。It is used to build dynamic networks. A dynamic network means that its network structure is not fixed. The environment detection module can detect and provide a range of available services, devices and networks, ranging from short-range communications (such as WLANs and 6LoWPANs) to long-range communications (such as any type of cellular network) can be based on IoT traffic incidents Detect physical infrastructure in early warning systems. When the construction module receives the network object list of the accident signal and alarm, it uses the environment variables obtained from the environment detection module and the object list obtained from the reasoning module to form and manage the dynamic network.
服务、设备(包括其他汽车)和网络，可以采用两种方式注册：一种是集中式注册方式，所有服务、设备(包括其他汽车)和网络注册在固定服务器。环境检测模块根据汽车自身地理位置的改变，筛选服务、设备(包括其他汽车)和网络。一种是分布式方式，随着汽车自身地理位置的改变，通过环境检测模块获取附近的服务、设备(包括其他汽车)和网络。Services, equipment (including other cars) and networks can be registered in two ways: one is a centralized registration method, all services, devices (including other cars) and networks are registered on a fixed server. The environment detection module screens services, devices (including other cars) and networks based on changes in the car's own geographic location. One is a distributed method, which uses the environment detection module to obtain nearby services, devices (including other cars) and networks as the vehicle's own geographical location changes.
4、网络对象模块4. Network object module
本发明实施例中，所述网络对象包括：配备在司机端、司机期望联系的用户端，以及行人端的移动终端，设置在医疗中心的网络终端，各类网络的物理基础设施等。In the embodiment of the present invention, the network objects include: mobile terminals equipped on the driver's end, the user end that the driver expects to contact, and the pedestrian's end, network terminals set up in the medical center, physical infrastructure of various networks, etc.
网络对象模块包括动态网络构建模块构建的动态网络中的所有网络对象。The network object module includes all network objects in the dynamic network built by the dynamic network building module.
5、服务模块。5. Service module.
所述服务模块设置在网络对象中，用于接收报警信号并发出报警提示。例如，行人手中的移动终端设置了服务模块时，如果发生事故，服务模块会通过动态网络将报警信号发送给行人，同时，可以通过移动终端的人机界面提供告警的详细信息。报警信息的形式包括声音、文字、图像等。此外，服务模块还提供了一个确认方式让接收方来确定是否真的发生事故。The service module is set in the network object and is used for receiving alarm signals and sending out alarm prompts. For example, when a mobile terminal in the hand of a pedestrian is equipped with a service module, if an accident occurs, the service module will send an alarm signal to the pedestrian through the dynamic network, and at the same time, the detailed information of the alarm can be provided through the man-machine interface of the mobile terminal. The form of alarm information includes sound, text, image and so on. In addition, the service module also provides a confirmation method for the recipient to determine whether an accident has actually occurred.
上述系统工作的流程图如图3所示。The flowchart of the above-mentioned system work is shown in Fig. 3 .
1)当系统开启，环境检测模块收集和存储客观环境和主观环境。1) When the system is turned on, the environment detection module collects and stores the objective environment and subjective environment.
可直接输入主观环境数据(包括对用户内在的社会性方面，如关系、喜好、信任和首选服务)，可由司机端的移动终端来采集车辆的环境数据，并由环境检测模块对其中的数据(例如，加速度传感器、声音传感器和摄像头的所有数据)进行处理(过滤噪音，压缩冗余的数据)与存储，并将它们传送到推理模块。Subjective environmental data can be directly input (including internal social aspects of the user, such as relationships, preferences, trust, and preferred services), and the vehicle’s environmental data can be collected by the mobile terminal at the driver’s end, and the environmental detection module can analyze the data (such as , all data from the acceleration sensor, sound sensor and camera) are processed (noise filtering, redundant data compression) and stored, and sent to the reasoning module.
2)推理模块判断是否有事故发生。如果认为是一场事故，推理模块根据环境将一系列告警的网络对象发送给构建模块。2) The reasoning module judges whether there is an accident. If it is considered an accident, the reasoning module sends a series of alarming network objects to the building module according to the environment.
3)构建模块利用从环境检测模块获得的环境和从推理模块中获得的对象列表来构建一个动态网络。3) The building block uses the environment obtained from the environment detection module and the object list obtained from the inference module to build a dynamic network.
4)发生事故时，服务模块将报警信号发送给目标。这些目标对象是按V值顺序排列的。服务模块会通知附近的车辆，这些车辆中驾驶员的设备(通常是手持移动设备)安装有服务模块。他们可以立即收到报警信号，避免潜在的追尾的可能性，并提供快速有效的医疗援助。配备有服务模块的附近行人同样也在目标对象列表内，他们可以立即收到报警信号，尽可能避免受伤并参加医疗救助。4) When an accident occurs, the service module sends an alarm signal to the target. These target objects are arranged in order of V value. The service module notifies nearby vehicles in which the driver's device (usually a handheld mobile device) is equipped with the service module. They can receive alarm signals immediately, avoid potential rear-end collisions, and provide quick and effective medical assistance. Nearby pedestrians equipped with the service module are also included in the list of target objects. They can immediately receive the alarm signal, avoid injury as much as possible and participate in medical assistance.
本发明的上述方案，主要具有如下优点。The above solution of the present invention mainly has the following advantages.
(1)网络结构是动态的。系统根据当前处境找出恰当的目标，根据位置、时间和其他信息，该系统可以根据当前环境信息，联系最合适的急救中心和任何应该被通知的人。(1) The network structure is dynamic. Based on the current situation, the system finds the appropriate target. Based on the location, time and other information, the system can contact the most appropriate emergency center and anyone who should be notified based on the current environmental information.
(2)与此期间，配备有服务模块的附近的司机和行人是系统的组成部分。它们可以提前通知相关司机和行人，避免追尾及其它形式的伤害。(2) In the meantime, nearby drivers and pedestrians equipped with service modules are integral parts of the system. They can notify relevant drivers and pedestrians in advance, avoiding rear-end collisions and other forms of injury.
(3)大部分人都拥有智能手机。因此，此高效的应急反应系统可以经济地建立起来。(3) Most people own smartphones. Therefore, this highly efficient emergency response system can be economically established.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明披露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书的保护范围为准。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
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| CN201610270535.XACN105761491B (en) | 2016-04-26 | 2016-04-26 | Traffic accident detecting and early warning system |
| Application Number | Priority Date | Filing Date | Title |
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| CN201610270535.XACN105761491B (en) | 2016-04-26 | 2016-04-26 | Traffic accident detecting and early warning system |
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| CN201610270535.XAActiveCN105761491B (en) | 2016-04-26 | 2016-04-26 | Traffic accident detecting and early warning system |
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