WO2017054293A1 - Procédé, dispositif et système d'avertissement de trafic - Google Patents

Procédé, dispositif et système d'avertissement de trafic Download PDF

Info

Publication number
WO2017054293A1
WO2017054293A1 PCT/CN2015/093545 CN2015093545W WO2017054293A1 WO 2017054293 A1 WO2017054293 A1 WO 2017054293A1 CN 2015093545 W CN2015093545 W CN 2015093545W WO 2017054293 A1 WO2017054293 A1 WO 2017054293A1
Authority
WO
WIPO (PCT)
Prior art keywords
user terminal
roadside unit
received
warning information
driving condition
Prior art date
Application number
PCT/CN2015/093545
Other languages
English (en)
Chinese (zh)
Inventor
张晨璐
Original Assignee
宇龙计算机通信科技(深圳)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宇龙计算机通信科技(深圳)有限公司 filed Critical 宇龙计算机通信科技(深圳)有限公司
Publication of WO2017054293A1 publication Critical patent/WO2017054293A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems

Definitions

  • the invention belongs to the technical field of vehicle networks, and more particularly to a traffic warning method, device and system.
  • Vehicle network technology is the core technology of the future 5G (fifth generation mobile communication technology) network developed in recent years. 3GPP (3rd Generation Partnership Project) and 2015 have carried out a lot of research work on vehicle network technology, and The potential technical scenarios of vehicle network technology are given.
  • a traffic information broadcasting system based on a roadside unit is proposed in SA Technical Report TR22.885.
  • the user equipment User Equipment
  • the RSU Raad Side Unit
  • the RSU The first user terminal sends an early warning broadcast.
  • the early warning information broadcast does not need to be broadcast to all UEs.
  • the vehicle A and the vehicle B will be caused.
  • the existing system needs the ability to accurately identify the vehicle's position.
  • the present invention provides a traffic warning method, apparatus, and system for transmitting early warning information to certain first user terminals in a targeted manner, thereby reducing the probability of other first user terminals performing erroneous operations.
  • the technical solutions are as follows:
  • the present invention provides a traffic warning method, the method comprising:
  • the network side device determines, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies a traffic warning condition, and if yes, the network side device sends the first roadside unit to the first roadside unit Send warning information;
  • the first roadside unit determines a second user terminal that receives the early warning information based on the driving condition of the first user terminal, and sends the early warning information to the second user terminal, where the early warning information is used to trigger The second user terminal performs an operation corresponding to the early warning information.
  • the network side device comprises a second roadside unit and a security server
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition based on the driving condition of the first user terminal, and if so, to the first
  • the roadside unit sends the warning information
  • the first user terminal or the second roadside unit obtains the driving condition of the first user terminal
  • the security server determines whether the driving condition of the first user terminal satisfies a traffic warning condition based on the driving condition of the first user terminal, and if yes, sends the early warning information to the first roadside unit.
  • the second roadside unit or the security server determines the first roadside unit based on the driving condition of the first user terminal.
  • the first user terminal or the network side device obtains the driving situation of the first user terminal, including:
  • the first user terminal or the network side device obtains a relative position of the first user terminal based on the currently obtained multiple received powers, and obtains, according to the currently obtained multiple received powers and the plurality of received powers obtained last time, The traveling direction of the first user terminal, wherein the received power is obtained by the first user terminal or the second roadside unit after receiving the probe message.
  • the first user terminal or the network side device obtains the driving condition of the first user terminal, and the first user terminal or the network side device obtains the driving parameter of the first user terminal, and is based on The driving parameter is used to obtain the driving state of the first user terminal.
  • the first user terminal obtains a relative position of the first user terminal based on the currently obtained multiple received powers, and obtains a location based on the currently obtained multiple received powers and the plurality of received powers obtained last time.
  • the driving direction of the first user terminal includes:
  • the first user terminal After receiving the respective probe messages, the first user terminal obtains the received power corresponding to each probe message;
  • the first user terminal compares the currently obtained multiple received powers to obtain a relative position of the first user terminal
  • the first user terminal compares each received power currently obtained with the received power obtained by receiving the probe message broadcast by the same second roadside unit last time, to obtain the traveling direction of the first user terminal.
  • the network side device obtains a relative position of the first user terminal based on the currently obtained multiple received powers, and obtains the foregoing according to the currently obtained multiple received powers and the plurality of received powers obtained last time.
  • the driving direction of the first user terminal including:
  • the second roadside unit receives the probe message periodically sent by the first user terminal
  • the second roadside unit After receiving the probe message, the second roadside unit obtains the received power corresponding to the probe message;
  • the second roadside unit transmits the obtained received power to the other second roadside unit, and receives the received power obtained by the other second roadside unit after receiving the probe message;
  • the second roadside unit compares the currently obtained multiple received powers to obtain a relative position of the first user terminal, where the currently obtained multiple received powers include that the second roadside unit receives the probe message.
  • the received power obtained afterwards and the received power obtained by the other second roadside unit after receiving the probe message;
  • the second roadside unit compares each of the currently received received powers with the received power obtained by receiving the probe message broadcast by the same first user terminal, respectively, to obtain the traveling direction of the first user terminal.
  • the present invention provides a traffic warning system, where the system includes: a first user terminal, a network side device, a first roadside unit, and a second user terminal;
  • the first user terminal or the network side device is configured to obtain a driving situation of the first user terminal
  • the network side device is configured to determine, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies a traffic warning condition, and if yes, send the early warning information to the first roadside unit;
  • the first roadside unit is configured to determine, according to the driving condition of the first user terminal, a second user terminal that receives the early warning information, and send the early warning information to the second user terminal, where the early warning information And configured to trigger the second user terminal to perform an operation corresponding to the early warning information.
  • the network side device comprises a second roadside unit and a security server
  • the second roadside unit is configured to obtain a driving condition of the first user terminal, and determine, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies a traffic warning condition, and if so, Sending early warning information to the first roadside unit; wherein the sending the early warning information to the first roadside unit includes the second roadside unit directly transmitting the early warning information to the first roadside unit, or the second roadside unit passes The security server sends alert information to the first roadside unit.
  • the network side device comprises a second roadside unit and a security server
  • the second roadside unit is configured to obtain a driving condition of the first user terminal
  • the security server is configured to determine, according to a form of the first user terminal, whether the driving condition of the first user terminal satisfies a traffic warning condition, and if yes, send the early warning information to the first roadside unit.
  • the first roadside unit is determined by a second roadside unit or a security server in the traffic warning system.
  • the present invention provides a traffic warning method, the method comprising:
  • the sending the warning information, where the warning information is used to trigger the second user terminal to perform an operation corresponding to the warning information, where the second user terminal is based on The driving condition of the first user terminal is obtained.
  • the obtaining the driving situation of the first user terminal comprises: obtaining a relative position of the first user terminal based on the currently obtained multiple received powers, and based on the currently obtained multiple received powers and the last obtained The plurality of received powers obtain the traveling direction of the first user terminal.
  • the obtaining the driving situation of the first user terminal comprises: obtaining a driving parameter of the first user terminal, and obtaining a driving state of the first user terminal based on the driving parameter.
  • the relative position of the first user terminal is obtained based on the currently obtained multiple received powers, and the first user is obtained based on the currently obtained multiple received powers and the plurality of received powers obtained last time.
  • the direction of travel of the terminal including:
  • Each of the currently received received powers is compared with the received power obtained by receiving the probe message broadcast by the same first user terminal, respectively, to obtain the traveling direction of the first user terminal.
  • the relative position of the first user terminal is obtained based on the currently obtained multiple received powers, and the first user is obtained based on the currently obtained multiple received powers and the plurality of received powers obtained last time.
  • the direction of travel of the terminal including:
  • Each of the currently received received powers is compared with the received power obtained by receiving the probe message broadcast by the same second roadside unit last time, to obtain the traveling direction of the first user terminal.
  • the present invention provides a traffic warning device, the device comprising:
  • a obtaining unit configured to obtain a driving condition of the first user terminal
  • a determining unit configured to determine, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal meets a traffic warning condition
  • a sending unit configured to send, when the driving condition of the first user terminal meets the traffic warning condition, the warning information, where the warning information is used to trigger the second user terminal to perform an operation corresponding to the warning information,
  • the second user terminal is derived based on the driving condition of the first user terminal.
  • the obtaining unit is configured to obtain a relative position of the first user terminal based on the currently obtained multiple received powers, and obtain, according to the currently obtained multiple received powers and the plurality of received powers obtained last time, The direction of travel of the first user terminal.
  • the obtaining unit is configured to obtain a driving parameter of the first user terminal, and obtain a driving state of the first user terminal based on the driving parameter.
  • the obtaining unit comprises:
  • a first acquiring subunit configured to acquire a probe message periodically sent by the first user terminal
  • a first calculating subunit configured to obtain a received power corresponding to the probe message after receiving the probe message
  • a radio frequency subunit configured to send the received power to the other second roadside unit, and receive the received power obtained by the other second roadside unit after receiving the probe message;
  • a second calculating subunit configured to compare the currently obtained multiple received powers to obtain a relative position of the first user terminal, where the currently obtained multiple received powers include the second roadside unit receiving the detected The received power obtained after the message and the received power sent by the other second roadside unit;
  • a third calculating sub-unit configured to compare each of the currently received received powers with a received power obtained by receiving the probe message broadcast by the same first user terminal, to obtain a traveling direction of the first user terminal.
  • the obtaining unit comprises:
  • a second obtaining subunit configured to obtain a received power uploaded by the first user terminal, where the receiving power The rate is obtained by the first user terminal after receiving the probe message periodically broadcasted by the second roadside unit;
  • a fourth calculating subunit configured to compare the currently obtained multiple received powers to obtain a relative position of the first user terminal
  • a fifth calculating sub-unit configured to compare each received power currently obtained with a received power obtained by receiving a probe message broadcast by the same second roadside unit last time, to obtain a traveling direction of the first user terminal .
  • the second user terminal may be obtained based on at least the driving condition of the first user terminal, so that if the warning information needs to be sent, the warning information may be sent only to the second user terminal, so that the other The first user terminal no longer receives the early warning information, so that the other first user terminal that does not receive the early warning information may perform a corresponding operation, reducing the probability that other first user terminals perform an erroneous operation, that is, the foregoing provided by the present invention.
  • the technical solution can specifically transmit the warning information to the second user terminal only to reduce the probability that other first user terminals (the first user terminal not being alerted) perform an erroneous operation.
  • FIG. 1 is a schematic diagram of a conventional traffic information broadcasting system based on a roadside unit
  • FIG. 2 is a flow chart of a traffic warning method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a traffic scenario according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of obtaining a driving situation of a first user terminal in a traffic warning method according to an embodiment of the present invention
  • FIG. 5 is another flowchart of obtaining a driving situation of a first user terminal in a traffic warning method according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a traffic warning system according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of another traffic warning method according to an embodiment of the present invention.
  • FIG. 8 is a flow chart showing the relative position and traveling direction of the first user terminal obtained in the traffic warning method shown in FIG. 7;
  • FIG. 9 is another flow chart of obtaining the relative position and the traveling direction of the first user terminal in the traffic warning method shown in FIG. 7;
  • FIG. 10 is a schematic structural diagram of a traffic warning device according to an embodiment of the present invention.
  • FIG. 2 a signaling interaction diagram of a traffic warning method according to an embodiment of the present invention is shown, which may include the following steps:
  • the first user terminal UE or the network side device obtains a driving situation of the first user terminal.
  • the network side device may be an RSU, and the driving condition of the first user terminal is used to indicate that the object where the first user terminal is located is traveling on the road, for example, indicating the driving direction and driving state of the vehicle where the first user terminal is located on the road (at Acceleration state or deceleration state).
  • the first user terminal or the network side device may obtain the relative position of the first user terminal based on the currently obtained multiple received powers, and based on the plurality of currently received received powers and the multiple times obtained last time.
  • Receiving power obtaining a traveling direction of the first user terminal, wherein the received power is obtained by the first user terminal or the network side device after receiving the probe message.
  • the relative position and the traveling direction of the first user terminal may be obtained by the first user terminal itself or may be obtained by the network side device. That is, the first user terminal can be divided into a terminal active type and a terminal passive type.
  • the first user terminal can obtain the relative position and the traveling direction of the first user terminal autonomously, or for the terminal.
  • the first user terminal of the active type the first user terminal can autonomously obtain the received power corresponding to the probe message sent by the network side device, and then send the received power obtained by the first user terminal to the network side device, where the network side device To obtain the relative position and direction of travel of the first user terminal.
  • the first user terminal of the terminal passive type the first user terminal may periodically send a probe message to the network side device, and the network side device obtains the relative position and the traveling direction of the first user terminal.
  • the driving situation may also include other information, such as a driving state, which is used to at least indicate whether the first user terminal is in an accelerated state or a decelerating state, and in the embodiment of the invention, the driving state may be based on The driving parameters of the first user terminal are obtained.
  • the driving parameters include at least: a running speed and an acceleration, which can be obtained by a speed sensor installed in the first user terminal, and the acceleration can be obtained by an acceleration sensor installed in the first user terminal. Based on the driving speed and acceleration, especially the acceleration, it can be determined whether the current object of the first user terminal is in an acceleration state or a deceleration state.
  • the braking instruction information of the vehicle where the first user terminal is located may be further obtained, which is not described in the embodiment of the present invention.
  • the network side device determines, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies the traffic warning condition, and if yes, the network side device sends the early warning information to the first roadside unit.
  • the driving situation of the first user terminal is used to indicate that the object of the first user terminal is traveling on the road, it may be determined whether the traffic warning condition is met, that is, the object of the first user terminal is determined based on the driving condition of the first user terminal. Whether you are in illegal driving.
  • the first direction can be judged based on the traveling direction and the relative position.
  • the driving condition of the user terminal satisfies the traffic warning condition.
  • the driving situation obtained by the first user terminal worn by the pedestrian indicates that the pedestrian is crossing the road, and the traffic information indicates that the pedestrian is illegally wearing a red light, so that the vehicle passing through the intersection where the pedestrian is located may collide with the vehicle.
  • the driving condition of the first user terminal satisfies the traffic warning condition.
  • the embodiment of the present invention combines the driving state in the traveling direction and the relative position to evaluate how long the object of the first user terminal passes through the intersection, whether it is in an acceleration state or a deceleration state, so that the network side device can be based thereon. Determine whether the traffic warning condition is met to send the warning information.
  • the network side device may further combine the traffic information to determine whether the traffic warning condition is met. For example, after obtaining the driving condition of the first user terminal, the traffic light of the current intersection is a red light green light to determine whether the traffic warning condition is met, if the first
  • the relative position of the object where the user terminal is located indicates that the vehicle or pedestrian is within the intersection and is in the acceleration state to move toward the intersection. At present, the traffic light at the intersection is a red light, indicating that the vehicle or the pedestrian is to traverse the red light, so that the judgment can be satisfied at this time. Traffic warning conditions, sending warning information to instruct other vehicles to pay attention to violations.
  • the network side device includes at least a second roadside unit and a security server, and the working process of the second roadside unit and the security server may be in the following manners. Ways to execute:
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit determines the driving condition based on the first user terminal.
  • a roadside unit that sends warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if yes, sends the driving condition of the first user terminal to Security server.
  • the security server determines the first roadside unit based on the driving condition of the first user terminal, and sends the warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit determines based on the driving condition of the first user terminal a first roadside unit, and triggering the security server to send the warning information to the first roadside unit;
  • the second roadside unit will obtain the information required for the driving situation of the first user terminal, such as receiving power, etc., and send it to the security server, and the security server obtains the driving condition of the first user terminal, and determines the driving of the first user terminal. Whether the situation meets the traffic warning conditions, if it is a security service
  • the first roadside unit is determined based on the driving condition of the first user terminal, and the warning information is transmitted to the first roadside unit.
  • the first roadside unit described above is a second roadside unit for transmitting early warning information to other first user terminals that may have an accident with a vehicle or pedestrian that is in violation.
  • the manner of obtaining the first roadside unit may be: the second roadside unit or the security server obtains the location of the second user terminal according to the relative position of the early warning user terminal, and then based on each second roadside unit.
  • the location information is used to obtain the second roadside unit to which the second user terminal belongs, such that the second roadside unit to which the second user terminal belongs is the first roadside unit.
  • the early warning user terminal is the first user terminal that satisfies the traffic warning condition
  • the second roadside unit to which the second user terminal belongs is the second roadside unit whose signal range covers the second user terminal.
  • the second roadside unit to which the second user terminal belongs includes more than one
  • the second roadside unit may be selected as the first roadside unit; of course, it is also possible to determine the second roadside unit and the need to send the warning information.
  • the first roadside unit that sends the early warning information to the second user terminal is the same second roadside unit. In this case, if the first roadside unit is obtained by the security server, the security server returns the warning information. To the second roadside unit, if the first roadside unit is obtained by the second roadside unit, the second roadside unit may directly send the warning information to the second user terminal.
  • the first roadside unit determines, according to the driving condition of the first user terminal, the second user terminal that receives the early warning information, and sends the early warning information to the second user terminal, where the early warning information is used to trigger the second user terminal to perform the corresponding to the early warning information. operating.
  • the first roadside unit may obtain an approximate range of the first user terminal based on the relative position and the traveling direction, such as which intersection is located, and the first roadside unit may further determine the first based on the traveling speed and the acceleration.
  • the time and speed of the vehicle or pedestrian where the user terminal is located through the intersection, so that the first user terminal having a driving conflict with the first user terminal is the second user terminal. If the second roadside unit in FIG. 1 detects that the pedestrian has an illegal crossing behavior, the first user terminal in the vehicle D and the vehicle E is the second user terminal. At this time, the first roadside unit sends the warning information to the second user terminal, and the second user terminal sends an early warning alarm to stop the driver from giving off.
  • the warning alarm can be an audible alarm, a vibration alarm or any other prompting method.
  • the traffic warning method provided by the present invention can obtain the second user terminal based on at least the driving condition of the first user terminal, so that the warning information can be sent only to the second user if the warning information needs to be sent.
  • the terminal causes the other first user terminals to no longer receive the early warning information, so that the other first user terminals that have not received the early warning information can perform the corresponding operations, thereby reducing the probability that other first user terminals perform the wrong operation, that is, the present
  • the above technical solution provided by the invention can specifically transmit the warning information only to the second user terminal, so as to reduce the probability that other first user terminals (the first user terminal not being alerted) perform an erroneous operation.
  • the driving situation of the first user terminal or the network side device based on the received power is used to describe the driving situation of the first user terminal.
  • the network side device is shown in FIG. 3 as four second roadside units, denoted as RSU1, RSU2, RSU3, and RSU4, respectively.
  • RSU1, RSU2, RSU3, and RSU4 second roadside units
  • the flowchart thereof is as shown in FIG. 4, and may include the following steps:
  • the first user terminal receives a probe message that is sent by a plurality of second roadside units periodically.
  • the first user terminal After receiving the respective probe messages, the first user terminal obtains the received power corresponding to each probe message.
  • the received power can be predicted according to the signal strength. There are various ways to predict the received power according to the signal strength in the prior art, which is not described in the embodiment of the present invention.
  • the first user terminal compares the currently received multiple received powers to obtain a relative location of the first user terminal.
  • the method of obtaining position information is to compare the signal difference between a plurality of signals. That is, the first user terminal obtains the relative position of the first user terminal according to the obtained difference of the multiple received powers. As shown in FIG. 3, the first user terminal obtains the received powers of the probe messages sent by the RSU1, the RSU2, the RSU3, and the RSU4, respectively. Yes: A1, A2, A3 and A4.
  • A1>A2 indicates that the first user terminal is close to the RSU1 side. If A1>A3 and A1>A4 in the case of A1>A2, and both A2 and A1 are much larger than A3 and A4, the first user is explained.
  • the terminal is close to the RSU1 and away from the RSU3 and RSU4 sides, so the relative position of the first user terminal can be obtained after comparing the plurality of received powers. It is of course also possible to locate the relative position of the first user terminal based on the transmit power and the received power.
  • the first user terminal separately obtains each received power separately from the previous reception.
  • the received power obtained after the probe message broadcasted by the second roadside unit is compared to obtain the traveling direction of the first user terminal. That is to say, the first user terminal determines the direction of the received power in the multiple measurement process according to the detection message sent by the multiple RSUs, and determines the location where the UE approaches or moves away from each RSU, thereby determining the traveling direction. It should also be noted that when comparing the trend of the received power obtained by the probe messages sent by multiple RSUs in multiple measurements, the probe messages sent by the same second roadside unit are compared.
  • the received powers obtained at time T0 are A1', A2', A3', and A4', respectively, compared with the received powers A1, A2, A3, and A4 obtained at time T1, when A1' ⁇ A1.
  • A2' ⁇ A2, A3' ⁇ A3 and A4' ⁇ A4 it can be judged that the first user terminal is moving in the direction toward the RSU1 and gradually approaching the RSU3 and the RSU4.
  • A1'>A1, A2'>A2 but A3' ⁇ A3, A4' ⁇ A4 it can be explained that the first user terminal is facing RSU3 and RSU4, but has traveled farther away from the positions of RSU1 and RSU2. In this way, the approximate driving direction of the first user terminal can be determined, and the first user terminal can be instructed to arrive at the intersection or have left the intersection.
  • the second roadside unit obtains the running condition of the first user terminal, which may include the following steps:
  • the second roadside unit receives the probe message periodically sent by the first user equipment.
  • the second roadside unit After receiving the probe message, the second roadside unit obtains the received power corresponding to the probe message.
  • the second roadside unit sends the received power to the other second roadside unit, and receives the received power obtained by the other second roadside unit after receiving the probe message, so that the second roadside unit can obtain the same first
  • the received power of the user terminal in different second roadside units enables the second roadside unit to compare the plurality of received powers of the same first user terminal to obtain the relative position and the traveling direction of the first user terminal.
  • the second roadside unit compares the currently received multiple received powers to obtain a relative position of the first user terminal, where the currently obtained multiple received powers include the received by the second roadside unit after receiving the probe message.
  • the received power obtained by the power and other second roadside units after receiving the probe message.
  • the second roadside unit separately obtains each received power separately from the previous reception.
  • the received power obtained after the probe message broadcasted by the first user terminal is compared to obtain the traveling direction of the first user terminal.
  • the manner in which the second roadside unit obtains the relative position and the traveling direction in the running condition is the same as the corresponding step in the above-mentioned flowchart shown in FIG. 4, which is not described in the embodiment of the present invention.
  • the embodiment of the present invention can also use the time difference to obtain the relative position and the traveling direction, wherein the time difference is the difference between the sending time and the receiving time of the same probe message, and the principle of receiving power can also be adopted by the same.
  • the relative position and the direction of travel are obtained, which are not described in detail in the embodiments of the present invention.
  • the embodiment of the present invention further provides a traffic warning system, as shown in FIG. 6 , which may include: a first user terminal 11 , a network side device 12 , and a first roadside unit 13 . And a second user terminal 14.
  • a traffic warning system as shown in FIG. 6 , which may include: a first user terminal 11 , a network side device 12 , and a first roadside unit 13 . And a second user terminal 14.
  • the first user terminal 11 or the network side device 12 is configured to obtain the driving condition of the first user terminal.
  • the driving situation of the first user terminal is used to indicate that the object where the first user terminal is located is driving on the road, for example, indicating the traveling direction and driving state (in an acceleration state or a deceleration state) of the vehicle where the first user terminal is located on the road.
  • the first user terminal or the network side device may obtain the relative position of the first user terminal based on the currently obtained multiple received powers, and based on the plurality of currently received received powers and the multiple times obtained last time.
  • the receiving power is obtained, and the driving direction of the first user terminal is obtained.
  • the receiving power is obtained by the first user terminal or the network side device after receiving the detection message.
  • the driving situation may also include other information, such as a driving state, which is used to at least indicate whether the first user terminal is in an accelerated state or a decelerating state, and in the embodiment of the invention, the driving state may be based on The driving parameters of the first user terminal are obtained.
  • the driving parameters include at least: a running speed and an acceleration, which can be obtained by a speed sensor installed in the first user terminal, and the acceleration can be obtained by an acceleration sensor installed in the first user terminal. Based on the driving speed and acceleration, especially the acceleration can determine the current Whether the object where the user terminal is located is in an accelerated state or a decelerated state.
  • the braking instruction information of the vehicle where the first user terminal is located may be further obtained, which is not described in the embodiment of the present invention.
  • the network side device 12 is configured to determine, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies the traffic warning condition, and if yes, send the early warning information to the first roadside unit. Since the driving situation of the first user terminal is used to indicate that the object of the first user terminal is traveling on the road, it may be determined whether the traffic warning condition is met, that is, the object of the first user terminal is determined based on the driving condition of the first user terminal. Whether you are in illegal driving.
  • the first direction can be judged based on the traveling direction and the relative position.
  • the driving condition of the user terminal satisfies the traffic warning condition.
  • the driving situation obtained by the first user terminal worn by the pedestrian indicates that the pedestrian is crossing the road, and the traffic information indicates that the pedestrian is illegally wearing a red light, so that the vehicle passing through the intersection where the pedestrian is located may collide with the vehicle.
  • the driving condition of the first user terminal satisfies the traffic warning condition.
  • the embodiment of the present invention combines the driving state in the traveling direction and the relative position to evaluate how long the object of the first user terminal passes through the intersection, whether it is in an acceleration state or a deceleration state, so that the network side device can be based thereon. Determine whether the traffic warning condition is met to send the warning information.
  • the network side device may further combine the traffic information to determine whether the traffic warning condition is met. For example, after obtaining the driving condition of the first user terminal, the traffic light of the current intersection is a red light green light to determine whether the traffic warning condition is met, if the first
  • the relative position of the object where the user terminal is located indicates that the vehicle or pedestrian is within the intersection and is in the acceleration state to move toward the intersection. At present, the traffic light at the intersection is a red light, indicating that the vehicle or the pedestrian is to traverse the red light, so that the judgment can be satisfied at this time. Traffic warning conditions, sending warning information to instruct other vehicles to pay attention to violations.
  • the network side device includes at least a second roadside unit and a security server, and the working process of the second roadside unit and the security server may be in the following manners. In the process, it can be executed in any way:
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit determines the driving condition based on the first user terminal.
  • a roadside unit that sends warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if yes, sends the driving condition of the first user terminal to Security server.
  • the security server determines the first roadside unit based on the driving condition of the first user terminal, and sends the warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit determines based on the driving condition of the first user terminal a first roadside unit, and triggering the security server to send the warning information to the first roadside unit;
  • the second roadside unit will obtain the information required for the driving situation of the first user terminal, such as receiving power, etc., and send it to the security server, and the security server obtains the driving condition of the first user terminal, and determines the driving of the first user terminal. Whether the situation satisfies the traffic warning condition, if the security server determines the first roadside unit based on the driving condition of the first user terminal, and sends the warning information to the first roadside unit.
  • the first roadside unit described above is a second roadside unit for transmitting early warning information to other first user terminals that may have an accident with a vehicle or pedestrian that is in violation.
  • the manner of obtaining the first roadside unit may be: the second roadside unit or the security server obtains the location of the second user terminal according to the relative position of the early warning user terminal, and then based on each second roadside unit.
  • the location information is used to obtain the second roadside unit to which the second user terminal belongs, such that the second roadside unit to which the second user terminal belongs is the first roadside unit.
  • the early warning user terminal is the first user terminal that satisfies the traffic warning condition
  • the second roadside unit to which the second user terminal belongs is the second roadside unit whose signal range covers the second user terminal.
  • the second roadside unit to which the second user terminal belongs includes more than one
  • the second roadside unit may be selected as the first roadside unit; of course, it is also possible to determine the second information that needs to send the warning information.
  • the roadside unit and the first roadside unit that needs to send the warning information to the second user terminal are the same second roadside unit. In this case, if the first roadside unit is obtained by the security server, the security server will The warning information is transmitted back to the second roadside unit. If the first roadside unit is obtained by the second roadside unit, the second roadside unit can directly send the early warning information to the second user terminal.
  • the first roadside unit 13 is configured to determine, according to the driving condition of the first user terminal, the second user terminal that receives the early warning information, and send the early warning information to the second user terminal, where the early warning information is used to trigger the second user terminal to execute the early warning information. Corresponding operation.
  • the first roadside unit may obtain an approximate range of the first user terminal based on the relative position and the traveling direction, such as which intersection is located, and the first roadside unit may further determine the first based on the traveling speed and the acceleration.
  • the time and speed of the vehicle or pedestrian where the user terminal is located through the intersection, so that the first user terminal having a driving conflict with the first user terminal is the second user terminal. If the second roadside unit in FIG. 1 detects that the pedestrian has an illegal crossing behavior, the first user terminal in the vehicle D and the vehicle E is the second user terminal. At this time, the first roadside unit sends the warning information to the second user terminal, and the second user terminal sends an early warning alarm to stop the driver from giving off.
  • the warning alarm can be an audible alarm, a vibration alarm or any other prompting method.
  • the traffic warning system provided by the present invention can obtain the second user terminal based on at least the driving condition of the first user terminal, so that the warning information can be sent only to the second user if the warning information needs to be sent.
  • the terminal causes the other first user terminals to no longer receive the early warning information, so that the other first user terminals that have not received the early warning information can perform the corresponding operations, thereby reducing the probability that other first user terminals perform the wrong operation, that is, the present
  • the above technical solution provided by the invention can specifically transmit the warning information only to the second user terminal, so as to reduce the probability that other first user terminals (the first user terminal not being alerted) perform an erroneous operation.
  • FIG. 7 is a flowchart of another traffic warning method according to an embodiment of the present invention, which may include the following steps:
  • the driving situation of the first user terminal is used to indicate that the object where the first user terminal is located is traveling on the road, for example, indicating the first user terminal.
  • the direction of travel and the state of travel of the vehicle on the road (in an accelerated state or a decelerated state).
  • the first user terminal or the network side device may obtain the relative position of the first user terminal based on the currently obtained multiple received powers, and based on the plurality of currently received received powers and the multiple times obtained last time.
  • Receiving power obtaining a traveling direction of the first user terminal, wherein the received power is obtained by the first user terminal or the network side device after receiving the probe message.
  • the relative position and the traveling direction of the first user terminal may be obtained by the first user terminal itself or may be obtained by the network side device. That is, the first user terminal can be divided into a terminal active type and a terminal passive type.
  • the first user terminal can independently obtain the relative position and the traveling direction of the first user terminal, and the relative position.
  • the driving direction is sent to the network side device, or for the first user terminal of the terminal active type, the first user terminal can obtain the receiving power corresponding to the detection message sent by the network side device, and then obtain the first user terminal.
  • the received power is sent to the network side device, and the network side device obtains the relative position and the traveling direction of the first user terminal.
  • the first user terminal of the terminal passive type the first user terminal may periodically send a probe message to the network side device, and the network side device obtains the relative position and the traveling direction of the first user terminal.
  • the driving situation may also include other information, such as a driving state, which is used to at least indicate whether the first user terminal is in an accelerated state or a decelerating state, and in the embodiment of the invention, the driving state may be based on The driving parameters of the first user terminal are obtained.
  • the driving parameters include at least: a running speed and an acceleration, which can be obtained by a speed sensor installed in the first user terminal, and the acceleration can be obtained by an acceleration sensor installed in the first user terminal. Based on the driving speed and acceleration, especially the acceleration, it can be determined whether the current object of the first user terminal is in an acceleration state or a deceleration state.
  • the braking instruction information of the vehicle where the first user terminal is located may be further obtained, which is not described in the embodiment of the present invention.
  • the warning information is used to trigger the second user terminal to perform an operation corresponding to the warning information, and the first user terminal of the early warning information is obtained based on the driving condition of the first user terminal.
  • the driving situation of the first user terminal is used to indicate that the object of the first user terminal is traveling on the road, it may be determined whether the traffic warning condition is met, that is, the object of the first user terminal is determined based on the driving condition of the first user terminal. Whether you are in illegal driving.
  • the first direction can be judged based on the traveling direction and the relative position.
  • the driving condition of the user terminal satisfies the traffic warning condition.
  • the driving situation obtained by the first user terminal worn by the pedestrian indicates that the pedestrian is crossing the road, and the traffic information indicates that the pedestrian is illegally wearing a red light, so that the vehicle passing through the intersection where the pedestrian is located may collide with the vehicle.
  • the driving condition of the first user terminal satisfies the traffic warning condition.
  • the network side device includes at least a second roadside unit and a security server, and the working process of the second roadside unit and the security server may be in the following manners. Ways to execute:
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit is based on the first use
  • the driving condition of the terminal determines the first roadside unit, and sends the warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, and determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if yes, sends the driving condition of the first user terminal to Security server.
  • the security server determines the first roadside unit based on the driving condition of the first user terminal, and sends the warning information to the first roadside unit;
  • the second roadside unit obtains the driving condition of the first user terminal, determines whether the driving condition of the first user terminal satisfies the traffic warning condition, and if the second roadside unit determines based on the driving condition of the first user terminal a first roadside unit, and triggering the security server to send the warning information to the first roadside unit;
  • the second roadside unit will obtain the information required for the driving situation of the first user terminal, such as receiving power, etc., and send it to the security server, and the security server obtains the driving condition of the first user terminal, and determines the driving of the first user terminal. Whether the situation satisfies the traffic warning condition, if the security server determines the first roadside unit based on the driving condition of the first user terminal, and sends the warning information to the first roadside unit.
  • the first roadside unit described above is a second roadside unit for transmitting early warning information to other first user terminals that may have an accident with a vehicle or pedestrian that is in violation.
  • the manner of obtaining the first roadside unit may be: the second roadside unit or the security server obtains the location of the second user terminal according to the relative position of the early warning user terminal, and then based on each second roadside unit.
  • the location information is used to obtain the second roadside unit to which the second user terminal belongs, such that the second roadside unit to which the second user terminal belongs is the first roadside unit.
  • the early warning user terminal is the first user terminal that satisfies the traffic warning condition
  • the second roadside unit to which the second user terminal belongs is the second roadside unit whose signal range covers the second user terminal.
  • the second roadside unit to which the second user terminal belongs includes more than one
  • the second roadside unit may be selected as the first roadside unit; of course, it is also possible to determine the second roadside unit and the need to send the warning information.
  • the first roadside unit that sends the early warning information to the second user terminal is the same second roadside unit. In this case, if the first roadside unit is obtained by the security server, the security server returns the warning information. Give the second roadside unit, if it is the first by the second roadside unit The roadside unit can send the early warning information directly to the second user terminal by the second roadside unit.
  • the first roadside unit may obtain an approximate range of the first user terminal based on the relative position and the traveling direction, such as which intersection is located, and the first roadside unit may further determine the first based on the traveling speed and the acceleration.
  • the time and speed of the vehicle or pedestrian where the user terminal is located through the intersection, so that the first user terminal having a driving conflict with the first user terminal is the second user terminal. If the second roadside unit in FIG. 1 detects that the pedestrian has an illegal crossing behavior, the first user terminal in the vehicle D and the vehicle E is the second user terminal. At this time, the first roadside unit sends the warning information to the second user terminal, and the second user terminal sends an early warning alarm to stop the driver from giving off.
  • the warning alarm can be an audible alarm, a vibration alarm or any other prompting method.
  • the traffic warning method provided by the present invention can obtain the second user terminal based on at least the driving condition of the first user terminal, so that the warning information can be sent only to the second user if the warning information needs to be sent.
  • the terminal causes the other first user terminals to no longer receive the early warning information, so that the other first user terminals that have not received the early warning information can perform the corresponding operations, thereby reducing the probability that other first user terminals perform the wrong operation, that is, the present
  • the above technical solution provided by the invention can specifically transmit the warning information only to the second user terminal, so as to reduce the probability that other first user terminals (the first user terminal not being alerted) perform an erroneous operation.
  • the manner of obtaining the relative position and the traveling direction may include, but is not limited to, the flowchart shown in FIG. 8 and FIG. 9 described below.
  • FIG. 8 shows a manner of obtaining the relative position and the traveling direction in the embodiment of the present invention, which may include the following steps:
  • the received power can be predicted according to the signal strength. There are various ways to predict the received power according to the signal strength in the prior art, which is not described in the embodiment of the present invention.
  • the received power in the two-way unit enables the second roadside unit to compare the multiple received powers of the same first user terminal to obtain the relative position of the first user terminal and Direction of travel.
  • the 804 Compare the currently obtained multiple received powers to obtain a relative position of the first user terminal, where the currently obtained multiple received powers include the received power obtained by the second roadside unit after receiving the probe message, and other second The received power obtained by the roadside unit after receiving the probe message.
  • the manner in which the second roadside unit obtains the relative position and the traveling direction is the same as the corresponding step in the flowchart shown in FIG. 4, which is not described in the embodiment of the present invention.
  • FIG. 9 illustrates another manner of obtaining the above relative position and driving direction in the embodiment of the present invention, which may include the following steps:
  • the manner in which the second roadside unit obtains the relative position and the traveling direction is the same as the corresponding step in the flowchart shown in FIG. 4, which is not described in the embodiment of the present invention.
  • the embodiment of the present invention further provides a traffic warning device.
  • the schematic diagram of the structure is as shown in FIG. 10 , and may include: an obtaining unit 20 , a determining unit 21 , and a sending unit 22 .
  • the obtaining unit 20 is configured to obtain a driving situation of the first user terminal.
  • the driving situation of the first user terminal is used to indicate that the object where the first user terminal is located is driving on the road, for example, indicating the traveling direction and driving state (in an acceleration state or a deceleration state) of the vehicle where the first user terminal is located on the road.
  • the obtaining unit may obtain the relative position of the first user terminal based on the currently obtained multiple received powers, and obtain the first based on the plurality of currently received received powers and the plurality of received powers obtained last time.
  • the traveling direction of the user terminal, wherein the received power is obtained by the first user terminal or the network side device after receiving the probe message.
  • the driving situation may also include other information, such as a driving state, which is used to at least indicate whether the first user terminal is in an accelerated state or a decelerating state, and in the embodiment of the invention, the driving state may be based on The driving parameters of the first user terminal are obtained.
  • the driving parameters include at least: a running speed and an acceleration, which can be obtained by a speed sensor installed in the first user terminal, and the acceleration can be obtained by an acceleration sensor installed in the first user terminal. Based on the driving speed and acceleration, especially the acceleration, it can be determined whether the current object of the first user terminal is in an acceleration state or a deceleration state.
  • the braking instruction information of the vehicle where the first user terminal is located may be further obtained, which is not described in the embodiment of the present invention.
  • the determining unit 21 is configured to determine, according to the driving condition of the first user terminal, whether the driving condition of the first user terminal satisfies the traffic warning condition. Since the driving situation of the first user terminal is used to indicate that the object of the first user terminal is traveling on the road, it may be determined whether the traffic warning condition is met, that is, the object of the first user terminal is determined based on the driving condition of the first user terminal. For the specific judgment process, refer to the related description in the foregoing method embodiment, which is not described in the embodiment of the present invention.
  • the sending unit 22 is configured to: when the driving condition of the first user terminal meets the traffic warning condition, send the warning information, where the warning information is used to trigger the second user terminal to perform an operation corresponding to the warning information, where the second user terminal is based on the first user terminal The driving situation is obtained.
  • the approximate range of the first user terminal is obtained, such as at which intersection, and the time and speed of the vehicle or pedestrian passing through the intersection determined by the first user terminal based on the driving speed and the acceleration, and thus the first user terminal
  • the first user terminal having a driving conflict is the second user terminal. If the second roadside unit in FIG. 1 detects that the pedestrian has an illegal crossing behavior, the first user terminal in the vehicle D and the vehicle E is the second user terminal. At this point the first roadside unit will The warning information is sent to the second user terminal, and the second user terminal will issue an early warning alarm to stop the driver from giving off.
  • the warning alarm can be an audible alarm, a vibration alarm or any other prompting method.
  • the traffic warning device provided by the present invention can obtain the second user terminal based on at least the driving condition of the first user terminal, so that the warning information can be sent only to the second user if the warning information needs to be sent.
  • the terminal causes the other first user terminals to no longer receive the early warning information, so that the other first user terminals that have not received the early warning information can perform the corresponding operations, thereby reducing the probability that other first user terminals perform the wrong operation, that is, the present
  • the above technical solution provided by the invention can specifically transmit the warning information only to the second user terminal, so as to reduce the probability that other first user terminals (the first user terminal not being alerted) perform an erroneous operation.
  • the obtaining unit 20 may include: a first obtaining subunit, a first calculating subunit, a radio frequency subunit, a second calculating subunit, and a third calculating subunit. among them
  • the first obtaining subunit is configured to acquire a probe message that is periodically sent by the first user terminal.
  • the first calculating subunit is configured to obtain the received power corresponding to the probe message after receiving the probe message.
  • the received power can be predicted according to the signal strength. There are various ways to predict the received power according to the signal strength in the prior art, which is not described in the embodiment of the present invention.
  • the radio frequency subunit is configured to send the received power to the other second roadside unit, and receive the received power obtained by the other second roadside unit after receiving the probe message, so that the second roadside unit can obtain the same first user.
  • the received power of the terminal in different second roadside units enables the second roadside unit to compare the plurality of received powers of the same first user terminal to obtain the relative position and the traveling direction of the first user terminal.
  • a second calculating subunit configured to compare the currently obtained multiple received powers to obtain a relative position of the first user terminal, where the currently obtained multiple received powers include the second roadside unit obtained after receiving the probe message Received power and received power obtained by other second roadside units after receiving the probe message.
  • a third calculating sub-unit configured to compare each of the currently received received powers with the received power obtained by receiving the probe message broadcast by the same first user terminal, to obtain a traveling direction of the first user terminal.
  • the manner in which the second computing subunit obtains the relative position and the third computing subunit obtains the traveling direction is the same as the corresponding step in the flowchart shown in FIG. 4, which is not described in the embodiment of the present invention. .
  • the obtaining unit 20 may include: a second obtaining subunit, a fourth calculating subunit, and a fifth calculating subunit.
  • a second obtaining subunit configured to obtain the received power uploaded by the first user terminal, where the received power is obtained by the first user terminal after receiving the probe message periodically broadcasted by the second roadside unit.
  • a fourth calculating subunit configured to compare the currently obtained multiple received powers to obtain a relative position of the first user terminal.
  • a fifth calculating sub-unit configured to compare each of the currently received received powers with the received power obtained by receiving the probe message broadcast by the same second roadside unit last time, to obtain a traveling direction of the first user terminal.
  • each probe message in the foregoing embodiment may be sent by using a pre-agreed transmit power, so that the probe message may not carry the farmer's road. If the transmit power is not agreed in advance, the transmit power needs to be carried in the probe message. The transmit power is used to indicate the power used to send the probe message each time. When the transmit power in the probe message received multiple times is the same, the received power received multiple times can be directly compared; if the received probe message is received, When the transmission powers are different, the received power needs to be processed accordingly and then compared. As shown in FIG.
  • the transmit power of the RSU1 when the probe message is broadcasted at time T0 is 50 dbm, and the received power obtained by the first user terminal is 24 dbm. If the broadcast power is broadcasted at the time T1, the transmit power is 24 bdm, the first user.
  • the receiving power obtained by the terminal is 14 dbm, if the transmitting message does not carry the transmitting power, the obtained driving direction of the first user terminal is far away from the RSU1, but actually is close to the RSU1, so the transmitting power needs to be carried in the probe message.
  • the probe message in the foregoing embodiment may adopt a message in a D2D discovery technology, such as a D2D discovery message or a D2D communication message, and the same first user terminal goes to the second.
  • a D2D discovery technology such as a D2D discovery message or a D2D communication message
  • Various information uploaded by the roadside unit can also be carried and uploaded in the feedback message, wherein the feedback message can also be used.
  • a message in the D2D discovery technology such as a D2D discovery message or a D2D communication message.
  • the reason why the receiving power can be used to obtain the relative position and the driving direction is that the building environment is relatively simple considering that the intersection area is relatively open, so that it can be assumed that the first user terminal in the intersection has a visible route to each RSU, that is, the influence road
  • the biggest factor of loss is distance; it can be assumed that the shadow fading difference due to building occlusion is strongly correlated, that is, the shadow fading value is similar. Therefore, the relative position and the traveling direction of the first user terminal can be obtained by using the received power of the above-mentioned probe message to achieve positioning of the first user terminal, and the method is relative to GPS positioning (Global Positioning System). The technique is simpler and the positioning accuracy is not affected by the distance between the first user terminals.

Abstract

L'invention concerne un procédé, un dispositif et un système d'avertissement de trafic. Un second terminal utilisateur est obtenu sur la base de conditions de conduite d'un premier terminal utilisateur, et, de ce fait, lorsqu'il est nécessaire d'envoyer des informations d'avertissement, les informations d'avertissement peuvent être envoyées uniquement au second terminal utilisateur, de sorte qu'un autre terminal utilisateur, un premier, ne reçoit plus les informations d'avertissement et peut donc exécuter une opération correspondante, ce qui réduit la probabilité que le premier terminal utilisateur exécute une opération erronée. Par conséquent, selon la présente solution, les informations d'avertissement peuvent être envoyées uniquement au second terminal utilisateur de manière ciblée, afin de réduire la probabilité que le premier terminal utilisateur (le premier terminal utilisateur qui n'est pas averti) exécute une opération erronée.
PCT/CN2015/093545 2015-09-30 2015-10-31 Procédé, dispositif et système d'avertissement de trafic WO2017054293A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510641533.2 2015-09-30
CN201510641533.2A CN105139691B (zh) 2015-09-30 2015-09-30 一种交通预警方法、装置及系统

Publications (1)

Publication Number Publication Date
WO2017054293A1 true WO2017054293A1 (fr) 2017-04-06

Family

ID=54725018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/093545 WO2017054293A1 (fr) 2015-09-30 2015-10-31 Procédé, dispositif et système d'avertissement de trafic

Country Status (2)

Country Link
CN (1) CN105139691B (fr)
WO (1) WO2017054293A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105096659B (zh) * 2015-09-30 2018-06-15 宇龙计算机通信科技(深圳)有限公司 一种交通预警方法、装置及系统
TW202008325A (zh) * 2018-08-08 2020-02-16 財團法人工業技術研究院 協同式車輛安全系統與方法
CN112735165B (zh) * 2020-12-28 2022-03-08 深圳市金溢科技股份有限公司 车路协同道路预警方法、车载单元及路侧单元

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011110227A1 (fr) * 2010-03-12 2011-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Système d'aide pour véhicules basé sur un réseau cellulaire
US8175796B1 (en) * 2008-09-25 2012-05-08 The United States Of America As Represented By The Secretary Of The Navy Method for vehicle collision avoidance
CN104067641A (zh) * 2012-01-23 2014-09-24 阿尔卡特朗讯 用于增加交通安全的方法、网络实体和通信系统
CN104200703A (zh) * 2014-08-11 2014-12-10 奇瑞汽车股份有限公司 事故预警的方法、装置及系统
CN104575068A (zh) * 2014-12-29 2015-04-29 芜湖市汽车产业技术研究院有限公司 一种提示驾驶员的方法和装置
CN104794939A (zh) * 2015-04-21 2015-07-22 王红颖 高速行车预警方法
CN105096659A (zh) * 2015-09-30 2015-11-25 宇龙计算机通信科技(深圳)有限公司 一种交通预警方法、装置及系统
CN105118330A (zh) * 2015-09-30 2015-12-02 宇龙计算机通信科技(深圳)有限公司 一种交通预警方法、装置及系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001345829A (ja) * 2000-06-06 2001-12-14 Ntt Communications Kk 狭域通信システム
CN101407199A (zh) * 2008-10-28 2009-04-15 湖北汽车工业学院 一种车辆碰撞预警方法及装置
CN201749568U (zh) * 2010-08-12 2011-02-16 北京航空航天大学 一种用于警示驾驶员的车路协同装置
TWI431560B (zh) * 2010-12-14 2014-03-21 Inst Information Industry 駕駛輔助系統、方法以及儲存其之電腦可讀取記錄媒體
TWI474293B (zh) * 2011-11-30 2015-02-21 Inst Information Industry 駕駛輔助方法、應用其之車上裝置以及儲存其之電腦可讀取紀錄媒體
CN103259776A (zh) * 2012-11-19 2013-08-21 北京新岸线移动多媒体技术有限公司 一种用于应用层消息确认的发送、接收方法及装置
CN104134360A (zh) * 2014-08-14 2014-11-05 奇瑞汽车股份有限公司 基于短程通信的路口行人识别安全控制系统及方法
CN104574563B (zh) * 2014-09-02 2017-07-04 深圳市金溢科技股份有限公司 专有车辆的车载终端、车载终端、信息发布方法及系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8175796B1 (en) * 2008-09-25 2012-05-08 The United States Of America As Represented By The Secretary Of The Navy Method for vehicle collision avoidance
WO2011110227A1 (fr) * 2010-03-12 2011-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Système d'aide pour véhicules basé sur un réseau cellulaire
CN104067641A (zh) * 2012-01-23 2014-09-24 阿尔卡特朗讯 用于增加交通安全的方法、网络实体和通信系统
CN104200703A (zh) * 2014-08-11 2014-12-10 奇瑞汽车股份有限公司 事故预警的方法、装置及系统
CN104575068A (zh) * 2014-12-29 2015-04-29 芜湖市汽车产业技术研究院有限公司 一种提示驾驶员的方法和装置
CN104794939A (zh) * 2015-04-21 2015-07-22 王红颖 高速行车预警方法
CN105096659A (zh) * 2015-09-30 2015-11-25 宇龙计算机通信科技(深圳)有限公司 一种交通预警方法、装置及系统
CN105118330A (zh) * 2015-09-30 2015-12-02 宇龙计算机通信科技(深圳)有限公司 一种交通预警方法、装置及系统

Also Published As

Publication number Publication date
CN105139691B (zh) 2018-11-30
CN105139691A (zh) 2015-12-09

Similar Documents

Publication Publication Date Title
Tahmasbi-Sarvestani et al. Implementation and evaluation of a cooperative vehicle-to-pedestrian safety application
US8954261B2 (en) Autonomous vehicle positioning system for misbehavior detection
Dhondge et al. WiFiHonk: smartphone-based beacon stuffed WiFi Car2X-communication system for vulnerable road user safety
JP6165173B2 (ja) 携帯型ワイヤレスユーザデバイスによる安全メッセージの送信および／または受信を制御するための方法および装置
KR102522922B1 (ko) 군집주행 차량들간 안전메시지 송신 제어 시스템 및 방법
KR20180053385A (ko) 차량-대-차량 인터페이스를 통해 교통 체증 정보를 제공하는 장치, 방법 및 컴퓨터 프로그램
KR20180043336A (ko) 차량-대-차량 인터페이스를 통해 교통 체증의 종료에 관한 유용한 정보를 생성하는 장치, 방법 및 컴퓨터 프로그램
US9626870B2 (en) Method for communicating within an ad hoc-type motor vehicle communication system
CN110060465B (zh) 一种用于车辆行人交互系统的交互方法及交互系统
WO2017054291A1 (fr) Procédé, dispositif et système d'avertissement de trafic
Tang et al. Transmission control for reliable pedestrian-to-vehicle communication by using context of pedestrians
Hamdi et al. VANET-based traffic monitoring and incident detection system: A review.
US11789120B2 (en) Network node and method performed therein for handling data of objects in a communication network
WO2017054293A1 (fr) Procédé, dispositif et système d'avertissement de trafic
CN105160941A (zh) 信息提醒方法、信息提醒装置和移动终端
KR20130068159A (ko) 보행자 휴대 단말을 이용한 교통사고 방지 방법 및 장치
CN113615145A (zh) 车辆对车辆和车辆对网络通信
WO2017054290A1 (fr) Procédé, dispositif et système d'avertissement de trafic
CA3003855C (fr) Procede, dispositif et systeme de detection d'un evenement et/ou etat de la route dangereux
JP2019067088A (ja) 通信装置、及び報告制御方法
CN109935090A (zh) 交通灯调整系统、方法、装置、雾计算设备及存储介质
Das et al. Position verification in vehicular communications
JP6816185B2 (ja) 通信端末装置、並びに、その制御方法及びプログラム
Akhil et al. Collision avoidance at intersections using vehicle detectors and smartphones
Padmavathi et al. Accident detection and warning systems in VANET

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15905205

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15905205

Country of ref document: EP

Kind code of ref document: A1