公开(公告)号：US10665094B2

公开(公告)日：2020-05-26

申请号：US15825120

申请日：2017-11-29

Applicant: Industrial Technology Research Institute

Inventor： Yi-Jing Lee ,  Po-Chun Kang ,  Tzu-Hsiang Su ,  Chia-Tai Tsai

IPC: H04M3/42 ,  G08G1/005 ,  H04W4/40 ,  H04W4/70 ,  G08G1/16

Abstract: A method, a mobile device, and a system for message transmission of a vulnerable road user (VRU) are provided. The method is adapted to a first mobile device of a first VRU and includes the following steps. Whether there exists a target mobile device within a preset range of the first VRU is determined, where the target mobile device is a mobile device that has already broadcast a personal safety message (PSM). When the target mobile device exists within the preset range, whether to broadcast a first PSM is determined according to a relative distance between the target mobile device and an intersection as well as a relative distance between the target mobile device and the first mobile device. When the target mobile device doesn't exist within the preset range, the first PSM is broadcast.

公开(公告)号：US20180342154A1

公开(公告)日：2018-11-29

申请号：US15825120

申请日：2017-11-29

Applicant: Industrial Technology Research Institute

Inventor： Yi-Jing Lee ,  Po-Chun Kang ,  Tzu-Hsiang Su ,  Chia-Tai Tsai

IPC: G08G1/005 ,  H04W4/04 ,  H04W4/00 ,  G08G1/16

Abstract: A method, a mobile device, and a system for message transmission of a vulnerable road user (VRU) are provided. The method is adapted to a first mobile device of a first VRU and includes the following steps. Whether there exists a target mobile device within a preset range of the first VRU is determined, where the target mobile device is a mobile device that has already broadcast a personal safety message (PSM). When the target mobile device exists within the preset range, whether to broadcast a first PSM is determined according to a relative distance between the target mobile device and an intersection as well as a relative distance between the target mobile device and the first mobile device. When the target mobile device doesn't exist within the preset range, the first PSM is broadcast.

公开(公告)号：US09497768B2

公开(公告)日：2016-11-15

申请号：US14339217

申请日：2014-07-23

Applicant: Industrial Technology Research Institute

Inventor： An-Kai Jeng ,  Chia-Tai Tsai ,  Rong-Hong Jan ,  Chien Chen

IPC: H04W4/00 ,  H04W72/10 ,  H04L12/825 ,  H04L29/08 ,  H04W4/04 ,  H04W4/22 ,  H04W84/12

CPC classification number: H04W72/10 ,  G08G1/163 ,  H04L47/263 ,  H04L67/12 ,  H04L67/325 ,  H04W4/046 ,  H04W4/90 ,  H04W84/12

Abstract: A method of dynamic adjusting a generation frequency of messages in vehicular networks is provided, including: receiving updating requests and emergent degree of the vehicle event, and then determining whether the generation frequency of messages meets the dynamic change of the vehicle, if not satisfied, selecting a different adjustment method according to the event emergent degree. When the event is emergent, its generation frequency can be raised immediately by an interruptive adjustment and to suppress the generation frequency of messages of the others. Conversely, adjusting its generation frequency by a progressive adjustment and reducing the generation frequency of messages of the other lower-priority vehicles. According to the present disclosure, it prevents lower priority messages from occupying the channel overly, and emergency messages with higher priority can be satisfied immediately when it needed.

Abstract translation: 提供一种在车辆网络中动态调整消息的生成频率的方法，包括：接收更新请求和车辆事件的紧急程度，然后确定消息的生成频率是否满足车辆的动态变化，如果不满足， 根据事件突发度选择不同的调整方法。 当事件出现时，可以通过中断调整立即提高其生成频率，并抑制其他消息的生成频率。 相反，通过逐行调整来调整其生成频率，并降低其他较低优先级车辆的消息的产生频率。 根据本公开，防止较低优先级消息过度占用信道，并且当需要时可以立即满足具有较高优先级的紧急消息。