Intelligent road infrastructure system (IRIS): systems and methods

• US 10,692,365 B2
• Filed: 09/19/2018
• Issued: 06/23/2020
• Est. Priority Date: 06/20/2017
• Status: Active Grant

• Current Assignee: CAVH, LLC
• Original Assignee: CAVH, LLC
• Inventors: Ran, Bin, Cheng, Yang, Li, Shen, Zhang, Zhen, Ding, Fan, Tan, Huachun, Wu, Yuankai, Dong, Shuoxuan, Ye, Linhui, Li, Xiaotian, Chen, Tianyi, Shi, Kunsong, Jin, Jing, Chen, Xiaoxuan
• Primary Examiner(s): Ismail, Mahmoud S
• Application Number:
  US16/135,916
• Publication Number:
  US 20190096238A1
• Time in Patent Office: 643 Days
• Field of Search: 701118, 701482, 701439, 701200, 701 23, 340466
• CPC Class Codes: G08G 1/0116 from roadside infrastructure, e.g. beacons
• CPC Class Codes: G08G 1/012 from other sources than vehicle or roadside beacons, e.g. mobile networks
• CPC Class Codes: G08G 1/0145 for active traffic flow control
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/0968 Systems involving transmission of navigation instructions to the vehicle
• CPC Class Codes: G08G 1/164 Centralised systems, e.g. external to vehicles
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes
• CPC Class Codes: G08G 1/167 Driving aids for lane monitoring, lane changing, e.g. blind spot detection

Abstract

The invention provides systems and methods for an Intelligent Road Infrastructure System (IRIS), which facilitates vehicle operations and control for connected automated vehicle highway (CAVH) systems. IRIS systems and methods provide vehicles with individually customized information and real-time control instructions for vehicle driving tasks such as car following, lane changing, and route guidance. IRIS systems and methods also manage transportation operations and management services for both freeways and urban arterials. The IRIS manages one or more of the following function categories: sensing, transportation behavior prediction and management, planning and decision making, and vehicle control. IRIS is supported by real-time wired and/or wireless communication, power supply networks, and cyber safety and security services.

Claims

1. A system comprising a road side unit (RSU) network that comprises a plurality of networked RSUs spaced along a roadway, wherein each RSU comprises a processor, a communication module, and a sensing module, and the RSU network is configured to:

a) communicate with a traffic control unit (TCU) that communicates with and manages information from a plurality of RSU networks and communicates with and is managed by a traffic control center (TCC);

b) communicate with on board units (OBUs) of a plurality of vehicles traveling on said roadway and send individually customized vehicle-specific control instructions to vehicle OBUs; and

c) provide high-resolution maps comprising lane width, lane approach, grade, and road geometry information to vehicles.

2. The system of claim 1 wherein said control instructions comprise real-time commands for car following, lane changing, lane keeping, longitudinal speed, lateral speed, vehicle orientation, acceleration, deceleration, and/or route guidance.

3. The system of claim 1 wherein said RSU network is configured to sense vehicles on a road.

4. The system of claim 1 wherein each RSU of the RSU network further comprises a data processing module, an interface module, and/or an adaptive power supply module.

5. The system of claim 1 wherein each RSU of the RSU network comprises a radar based sensor, a vision based sensor, a satellite based navigation system component, and/or a vehicle identification component.

6. The system of claim 1 wherein the RSUs of the RSU network are deployed at spacing intervals within the range of 50 to 500 meters.

7. The system of claim 1 wherein said RSU network is configured to collect information comprising weather information, road condition information, lane traffic information, vehicle information, and/or incident information and broadcast said information to vehicles and/or to the TCU network.

8. The system of claim 1 wherein said RSU network is configured to communicate with a cloud database.

9. The system of claim 1 wherein said RSU network is configured to provide data to OBUs, said data comprising vehicle control instructions, travel route and traffic information, and/or services data.

10. The system of claim 1 wherein said RSU network comprises RSUs installed at one or more fixed locations selected from the group consisting of a freeway roadside, freeway on/off ramp, intersection, roadside building, bridge, tunnel, roundabout, transit station, parking lot, railroad crossing, and/or school zone.

11. The system of claim 1 wherein said RSU network comprises RSUs installed at one or more mobile platforms selected from the group consisting of vehicles and unmanned aerial drones.

12. The system of claim 1 wherein said RSU network is configured to communicate with said TCU network in real-time over wired and/or wireless channels.

13. The system of claim 1 wherein said RSU network is configured to communicate with said OBUs in real-time over wireless channels.

14. The system of claim 5 wherein said satellite based navigation system component is configured to communicate with OBUs and locate vehicles.

15. The system of claim 1 configured to provide and manage sensing, transportation behavior prediction and management, planning and decision making, and/or vehicle control.

16. A system comprising a road side unit (RSU) network that comprises a plurality of networked RSUs spaced along a roadway, wherein each RSU comprises a processor, a communication module, and a sensing module, and the RSU network is configured to:

a) communicate with a traffic control unit (TCU) comprising a processor, a communications module, and a sensing module, wherein said TCU communicates with and manages information from a plurality of RSU networks and communicates with and is managed by a traffic control center (TCC);

b) communicate with on board units (OBUs) of a plurality of vehicles traveling on said roadway and send individually customized vehicle-specific control instructions to vehicle OBUs; and

c) provide high-resolution maps comprising lane width, lane approach, grade, and road geometry information to vehicles.

17. The system of claim 16 wherein said control instructions comprise real-time commands for car following, lane changing, lane keeping, longitudinal speed, lateral speed, vehicle orientation, acceleration, deceleration, and/or route guidance.

18. The system of claim 16 wherein said RSU network is configured to sense vehicles on a road.

19. The system of claim 16 wherein each RSU of the RSU network further comprises a data processing module, an interface module, and/or an adaptive power supply module.

20. The system of claim 16 wherein each RSU of the RSU network comprises a radar based sensor, a vision based sensor, a satellite based navigation system component, and/or a vehicle identification component.

21. The system of claim 16 wherein the RSUs of the RSU network are deployed at spacing intervals within the range of 50 to 500 meters.

22. The system of claim 16 wherein said RSU network is configured to collect information comprising weather information, road condition information, lane traffic information, vehicle information, and/or incident information and broadcast said information to vehicles and/or to the TCU network.

23. The system of claim 16 wherein said RSU network is configured to communicate with a cloud database and/or to provide data to OBUs, said data comprising vehicle control instructions, travel route and traffic information, and/or services data.

24. The system of claim 16 wherein said RSU network comprises RSUs installed:

a) at one or more fixed locations selected from the group consisting of a freeway roadside, freeway on/off ramp, intersection, roadside building, bridge, tunnel, roundabout, transit station, parking lot, railroad crossing, and/or school zone; and

/or

b) at one or more mobile platforms selected from the group consisting of vehicles and unmanned aerial drones.

25. The system of claim 16 wherein said RSU network is configured to communicate with said TCU network in real-time over wired and/or wireless channels.

26. The system of claim 16 wherein said RSU network is configured to communicate with said OBUs in real-time over wireless channels.

27. The system of claim 20 wherein said satellite based navigation system component is configured to communicate with OBUs and locate vehicles.

28. The system of claim 16 configured to provide and manage sensing, transportation behavior prediction and management, planning and decision making, and/or vehicle control.