WO2015145908A1 - 車両走行管制システム及び運行管理サーバ - Google Patents
車両走行管制システム及び運行管理サーバ Download PDFInfo
- Publication number
- WO2015145908A1 WO2015145908A1 PCT/JP2014/084395 JP2014084395W WO2015145908A1 WO 2015145908 A1 WO2015145908 A1 WO 2015145908A1 JP 2014084395 W JP2014084395 W JP 2014084395W WO 2015145908 A1 WO2015145908 A1 WO 2015145908A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- travel
- permission
- permission request
- communication timing
- point
- Prior art date
Links
- 230000006854 communication Effects 0.000 claims abstract description 300
- 238000004891 communication Methods 0.000 claims abstract description 299
- 230000004044 response Effects 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 27
- 230000032258 transport Effects 0.000 description 53
- 238000012545 processing Methods 0.000 description 35
- 230000008569 process Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 14
- 230000006870 function Effects 0.000 description 13
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/2045—Guiding machines along a predetermined path
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/205—Remotely operated machines, e.g. unmanned vehicles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/2054—Fleet management
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0287—Control of position or course in two dimensions specially adapted to land vehicles involving a plurality of land vehicles, e.g. fleet or convoy travelling
- G05D1/0291—Fleet control
- G05D1/0297—Fleet control by controlling means in a control room
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
Definitions
- the present invention relates to a vehicle travel control system and an operation management server for mines, and more particularly to a technique for improving the connection status of wireless communication lines when a plurality of transport vehicles are traveling.
- a transport vehicle that travels autonomously without an operator boarding particularly a dump truck
- Such an autonomous traveling dump truck for a mine acquires an instruction from the control center via a wireless communication line, and travels in accordance with the instruction. Therefore, in order for a dump truck for a mine to be smoothly operated, it is necessary to improve the reliability of wireless communication between the dump truck and the wireless base station.
- Patent Document 1 As a technique for improving the reliability of wireless communication between a dump truck for a mine and a wireless base station, a technique described in Patent Document 1 is known.
- a plurality of mobile stations such as mining dump trucks moving along a traveling path have identification information, data corresponding to identification information managed by a monitoring station, data held by a certain mobile station, If they do not match, the mobile station requests a data transmission request from the monitoring station.
- communication forms communication form which transmits / receives all data each time
- the wireless base stations While a plurality of autonomously traveling dump trucks travel in the mine, the wireless base stations are arranged in a scattered manner so that the communication area of each wireless base station covers the entire traveling route of the mine dump truck.
- communication timings from the plurality of dump trucks may overlap with one radio base station. Concentration of communication timing causes a delay in obtaining an instruction related to traveling from the control center for the dump truck, and there is a problem that the dump truck stops and consequently the productivity of the entire mine is reduced. In addition, there is a problem for the control center that requests from the dump truck are concentrated and the load on the server of the control center temporarily increases.
- Patent Document 1 data identification information is transmitted / received, and if there is a history, the previous data is used for the information. Therefore, the amount of data transmitted / received is reduced compared to a general communication mode in which all data is transmitted / received each time.
- the overlapping of transmission / reception timings of all data when there is no data identification information and no data identification information is not considered. Therefore, if the timing of data communication overlaps, the congestion of the radio base station cannot be solved yet, and the above-described problems associated therewith cannot be solved.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to eliminate communication congestion of a radio base station when a plurality of transport vehicles are traveling in a mine vehicle travel control system.
- the present invention provides a plurality of transport vehicles that travel along a predetermined travel route on a premises of a mine, and an operation management server that manages operations of the transport vehicles.
- a vehicle travel control system that is communicatively connected via a station, and sets, for each of the plurality of transport vehicles, a partial section on the travel route as a travel permission section that permits travel of each transport vehicle.
- a travel permission section that calculates a permission request point that is within the travel permission section and transmits permission request information for requesting setting of the next travel permission section located in front of the travel permission section.
- the communication timing determination unit includes a communication timing when the one transport vehicle transmits the permission request information from the provisional permission request point, and the other transport vehicle transmits the permission request information. Determining whether or not a difference between the communication timing and the communication timing to be transmitted is equal to or greater than the predetermined threshold, and the travel permission section setting unit determines that the temporary setting is performed when the difference in the communication timing is equal to or greater than the predetermined threshold.
- the travel permission section thus set is set as a regular travel permission section.
- the travel permission section setting unit when setting the travel permission section of each transport vehicle, the travel permission section setting unit first temporarily sets the travel permission section and calculates a provisional permission request point. Then, the communication timing calculation unit calculates the communication timing at which the permission request information is transmitted from the provisional permission request point, and the communication timing determination unit communicates the calculated communication timing and the other transport vehicle to transmit the permission request information. It is determined whether the difference from the timing is equal to or greater than a predetermined threshold. When the difference in communication timing is equal to or greater than a predetermined threshold, the travel permission section setting unit normally sets the travel permission section, so that the travel permission section can be set so that the communication timing of each transport vehicle is dispersed. .
- the travel permission section setting unit temporarily sets a front boundary point that is a front end portion of the travel permission section for the one transport vehicle, and is predetermined with reference to the front boundary point.
- the provisional permission request point is calculated according to the conditions of the above, and the difference between the communication timing at which the permission request information is transmitted from the provisional permission request point and the communication timing at which the other transport vehicle transmits the permission request information is When it is less than a predetermined threshold, a point different from the temporarily set forward boundary point is temporarily set again as a new forward boundary point, and the temporarily set forward boundary point is used as a reference according to the predetermined condition.
- a new provisional permission request point is calculated, the communication timing at which the one transport vehicle transmits the permission request information from the new provisional permission request point, and the communication timing of the other transport vehicle. If, when the difference between the is the predetermined threshold value or more, the part section and the front end portion of the front boundary point the provisionally set again, sets as a normal travel permission section, characterized in that.
- the front boundary point is Shift. Following this, the provisional permission request point is also shifted. And if the communication timing in a new temporary permission request point leaves
- the travel permission section setting unit temporarily sets a front boundary point that is a front end portion and a rear boundary point that is a rear end portion of the travel permission section for the one transport vehicle.
- the provisional permission request point is calculated based on the provisionally set front boundary point or the rear boundary point, the communication timing for transmitting the permission request information from the provisional permission request point, and the other transport vehicle. Is different from the provisional permission request point between the provisional front boundary point and the rear boundary point when the difference between the transmission timing and the communication timing for transmitting the permission request information is less than the predetermined threshold.
- the point is calculated as a new temporary permission request point, the communication timing at which the one transport vehicle transmits the permission request information from the recalculated provisional permission request point, and the communication timing of the other transport vehicle. If the difference between the timing, is not less than the predetermined threshold, the partial section between the temporarily set front boundary point and the rear boundary point, set as a normal travel permission section, characterized in that.
- the permission request points can be set so that the communication timings are distributed without changing the position of the front boundary point. Therefore, even when other transport vehicles are traveling ahead, it is possible to set the travel permission section while maintaining a good connection state and without interfering with the front transport vehicles.
- the present invention may be configured such that when a plurality of adjacent radio base stations use the same frequency, the travel permission section setting unit spans communication areas of the plurality of adjacent radio base stations.
- the travel permission section is temporarily set.
- the travel permitted section can be extended to the adjacent communication area if the frequency is the same. Therefore, the degree of freedom when setting the travel permitted section by shifting the communication timing is increased, and the length of one travel permitted section is increased, thereby reducing the number of times permission request information is transmitted and improving the communication status. .
- the present invention is characterized in that, in the above-mentioned configuration, the communication timing calculation unit calculates the communication timing based on a current position and a traveling speed of each transport vehicle.
- the communication timing can be calculated according to the real-time traveling state of each transport vehicle.
- the present invention is an operation management server that is connected to a plurality of transport vehicles that travel along a predetermined travel route in a mine premises via a radio base station, and each of the plurality of transport vehicles.
- a partial section on the travel route is set as a travel permission section that permits travel of each transport vehicle, and the next travel that is in the travel permission section and is located in front of the travel permission section
- a travel permission section setting unit that calculates a permission request point, which is a point for transmitting permission request information for requesting setting of a permission section, and each transport vehicle to the operation management server via the wireless base station.
- One of the plurality of transport vehicles sends the permission request information to the same wireless base station.
- a communication timing determination unit that determines whether or not a difference between a communication timing to be transmitted and a communication timing at which another transport vehicle among the plurality of transport vehicles transmits the permission request information is equal to or greater than a predetermined threshold;
- a server-side communication control unit that transmits permission response information indicating a travel permission section set by the travel permission section setting unit to each transport vehicle, wherein the travel permission section setting unit is the one transport vehicle.
- the travel permission section is provisionally set, a provisional permission request point corresponding to the provisionally permitted travel permission section is calculated, and the communication timing calculation unit calculates the permission request information from the provisional permission request point.
- the communication timing determination unit is configured to calculate the communication timing when the one transport vehicle transmits the permission request information from the provisional permission request point, and Whether the difference between the transport vehicle and the communication timing at which the permission request information is transmitted is equal to or greater than the predetermined threshold, and the travel permission section setting unit determines that the difference in the communication timing is the predetermined threshold.
- the temporarily set travel permission section is set as a regular travel permission section.
- the travel permission section setting unit when setting the travel permission section of each transport vehicle, temporarily sets the travel permission section and calculates the provisional permission request point. Then, the communication timing calculation unit calculates the communication timing at which the permission request information is transmitted from the provisional permission request point, and the communication timing determination unit communicates the calculated communication timing and the other transport vehicle to transmit the permission request information. It is determined whether the difference from the timing is equal to or greater than a predetermined threshold. When the difference in communication timing is equal to or greater than a predetermined threshold, the travel permission section setting unit normally sets the travel permission section, so that the travel permission section can be set while distributing the communication timing of each transport vehicle.
- working permission area in consideration of communication timing is shown, (a) shows the state which set the driving
- each or all of the configurations, functions, processing units, processing means, and the like in the following embodiments may be realized as, for example, an integrated circuit or other hardware.
- each configuration, function, processing unit, processing unit, and the like, which will be described later may be realized as a program executed on a computer. That is, it may be realized as software.
- Information such as programs, tables, files, etc. for realizing each configuration, function, processing unit, processing means, etc. is stored in memory, hard disk, storage device such as SSD (Solid State Drive), storage medium such as IC card, SD card, DVD, etc. Can be stored.
- the first embodiment wirelessly communicates a transport vehicle that transports earth and sand or ore loaded by a loader such as an excavator or a wheel loader in a mine, and a control center that controls the position and traveling state of the loader and the transport vehicle.
- the present invention relates to a vehicle travel control system connected by a network, and is characterized in that a travel section of a transport vehicle is determined in particular in consideration of communication timing of a base station for wireless communication.
- a vehicle travel control system according to a first embodiment of the present invention will be described with reference to the drawings.
- a transport vehicle is not limited to a dump truck.
- FIG. 1 is a diagram showing a schematic configuration of a vehicle travel control system according to the first embodiment.
- a vehicle traveling control system 1 shown in FIG. 1 includes excavators 10-1 and 10-2 that load earth and sand and ore at a quarry such as a mine, and a dump truck 20- that carries loads such as earth and sand and ore. 1 and 20-2, and an operation management server 31 installed in the vicinity of the quarry or in the remote control center 30.
- Each of the dump trucks 20-1 and 20-2 reciprocates between the excavator 10-1 or 10-2 and an unillustrated ground along the traveling route 60 set in advance in the mine, and carries the load. To do.
- the dump trucks 20-1 and 20-2 will be described as an example of an unmanned dump truck that travels autonomously without boarding an operator. The present invention can be applied.
- the excavators 10-1 and 10-2, the dump trucks 20-1 and 20-2, and the operation management server 31 are wirelessly connected to each other via the wireless communication line 40.
- a plurality of wireless base stations 41-1, 41-2, 41-3 are installed in the mine. Then, radio communication radio waves are transmitted and received via these base stations. The radio wave attenuates as the distance from each base station 41-1, 41-2, 41-3 increases.
- Reference numerals 42-1, 42-2, and 42-3 in FIG. 1 indicate ranges in which radio waves can be transmitted and received between the base stations 41-1, 41-2, and 41-3 and the dump trucks 20-1 and 20-2. (Hereinafter referred to as “communication area”).
- Each base station 41-1, 41-2, 41-3 is installed so that the communication areas 42-1, 42-2, and 42-3 overlap each other, so that from any point on the travel route 60 It is preferable to be able to connect to the wireless communication line 40.
- the call area is illustrated as a circle, but in reality, the call area may not be circular due to the influence of the topography.
- the excavators 10-1 and 10-2 and the dump trucks 20-1 and 20-2 each include at least three navigation satellites 50-1, 50-2, and 50- of the Global Navigation Satellite System (GNSS). 3 is provided with a position calculation device (not shown in FIG. 1) for receiving the positioning radio wave from 3 and acquiring the position of the host vehicle.
- GNSS Global Navigation Satellite System
- the excavators 10-1 and 10-2 and the dump trucks 20-1 and 20-2 will be described.
- the excavators 10-1 and 10-2 and the dump trucks 20-1 and 20-2 are respectively Since they have the same configuration, the excavator 10-1 and the dump truck 20-1 will be described, and the description of the excavator 10-2 and the dump truck 20-2 will be omitted.
- the excavator 10-1 is an ultra-large hydraulic excavator, and is provided at the traveling body 11, the swiveling body 12 provided on the traveling body 11 so as to be able to swivel, the cab 13, and the center of the front portion of the swiveling body 12.
- the front work machine 14 includes a boom 15 provided so as to be able to move up and down with respect to the revolving body 12, an arm 16 provided rotatably at the tip of the boom 15, and a bucket 17 attached to the tip of the arm 16.
- An antenna 18 for connecting to a wireless communication line is installed at a place with good visibility in the excavator 10-1, for example, at the top of the cab 13.
- the dump truck 20-1 can be rotated up and down around a frame 21 forming a main body, front wheels 22 and rear wheels 23, and a hinge pin (not shown) provided at a rear portion of the frame 21 as a rotation center.
- a loading platform 24 and a pair of left and right hoist cylinders (not shown) that rotate the loading platform 24 in the vertical direction are included.
- the dump truck 20-1 is provided with an antenna 25 for connecting to the radio communication line 40 in a place with a good view, for example, in front of the top surface of the dump truck 20-1.
- the dump truck 20-1 is equipped with an in-vehicle terminal device 26 for autonomously traveling according to an instruction from the operation management server 31.
- the operation management server 31 is connected to an antenna 32 for connecting to the wireless communication line 40.
- the operation management server 31 then connects the excavators 10-1, 10-2 and the dump trucks 20-1, 20-2 via the antenna 32 and the radio base stations 41-4, 41-2, 41-3. Communicate with each other.
- FIG. 2 is a hardware configuration diagram of the operation management server and the in-vehicle terminal device.
- the operation management server 31 includes a server-side control device 311, a server-side input device 312, a server-side display device 313, a server-side communication device 314, a communication bus 315, a master map information database (hereinafter referred to as “database”).
- database a master map information database
- DB 316
- communication timing information DB 317 communication timing information DB 317
- operation management information DB 318 operation management information DB
- the server-side control device 311 controls the operation of each component of the operation management server 31, and includes an arithmetic / control device such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). , Hardware including a storage device such as HDD (Hard Disk Drive) and software executed by the server-side control device 311. Each function of the operation management server 31 is realized by executing software by these hardware.
- an arithmetic / control device such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory).
- Hardware including a storage device such as HDD (Hard Disk Drive) and software executed by the server-side control device 311.
- HDD Hard Disk Drive
- the server side input device 312 is configured by an input device such as a mouse and a keyboard, and functions as an interface for receiving an input operation from an operator.
- the server side display device 313 is composed of a liquid crystal monitor or the like, and functions as an interface for displaying and providing information to the operator.
- the server-side communication device 314 may use a wireless communication device that conforms to the standards of Wi-Fi (Wireless Fidelity) or IEEE (Institut of Electrical and Electronics Engineers) 802.11.
- the communication bus 315 electrically connects the components to each other.
- the master map information DB 316 is configured using a storage device such as an HDD that is fixedly stored, and is defined by position information of each point (hereinafter referred to as “node”) on the travel route 60 and sublinks that connect the nodes.
- the travel route information is stored. Further, it may include mine topographic information and absolute coordinates of each node (three-dimensional actual coordinates calculated based on positioning radio waves).
- Each node is given position identification information (hereinafter referred to as “node ID”) that uniquely identifies the node.
- the communication timing information DB 317 is configured by using a storage device such as an HDD that is fixedly stored. Information indicating communication timing for each of the radio base stations 41-1, 41-2, and 41-3 (hereinafter referred to as “communication timing information”). ) Is memorized.
- the operation management information DB 318 is configured using a storage device such as an HDD that is fixedly stored, and stores operation information of the dump truck such as the current position and traveling speed of each dump truck.
- the operation management server 31 is connected to the antenna 32 via the wired communication line 33 and is connected to the radio base stations 41-1, 41-2 and 41-3 via the radio communication line 40.
- each said database is provided only with the memory
- the database may be equipped with an engine for performing update / retrieval processing of information in the storage unit. The same applies to various databases described later.
- the in-vehicle terminal device 26 mounted on the dump truck 20-1 includes a terminal-side control device 261, a terminal-side input device 262, a terminal-side display device 263, a terminal-side communication device 264, a communication bus 265, and terminal-side map information.
- a DB 266, a travel control device 267, an external sensor device 268, and a position calculation device 269 are configured.
- the terminal-side control device 261 controls the operation of each component of the in-vehicle terminal device 26, and includes hardware including a calculation / control device such as a CPU, a storage device such as ROM, RAM, and HDD, and server-side control. And software executed by the device 311. Each function of the in-vehicle terminal device 26 is realized by executing software by these hardware.
- the terminal side input device 262 is configured by an input device such as a touch panel and various switches, and functions as an interface for receiving an input operation from an operator.
- the terminal side display device 263 is composed of a liquid crystal monitor or the like, and functions as an interface for displaying and providing information to the operator.
- the terminal-side communication device 264 may also be a wireless communication device that is a general-purpose product that conforms to Wi-Fi or IEEE 802.11 standards.
- the communication bus 265 electrically connects each component.
- the terminal-side map information DB 266 is configured by using a storage device such as an HDD that is fixedly stored, and stores the same map information as the map information stored in the master map information DB 316.
- the travel control device 267 accelerates / decelerates a drive device (hereinafter referred to as “travel drive device”) related to travel of the dump truck 20-1, such as an acceleration / deceleration device, a braking device, and a steering device of the dump truck 20-1.
- This is a control device for instructing the amount, the braking amount, and the steering angle.
- the external sensor device 268 is a sensor for detecting an obstacle ahead of the traveling direction (traveling direction) of the dump truck 20-1, such as a millimeter wave radar or a front camera, and the kind thereof is not limited.
- the detection result of the external sensor device 268 is output to the terminal-side control device 261, and is used for monitoring the driving position and accelerating / decelerating so as not to leave the driving route in normal times. Used.
- the position calculation device 269 calculates the current position of the host vehicle based on positioning radio waves from the navigation satellites 50-1, 50-2, and 50-3 (see FIG. 1).
- FIG. 3 is a functional block diagram illustrating main functions of the operation management server and the in-vehicle terminal device.
- the server-side control device 311 of the operation management server 31 includes a travel-permitted section setting unit 311a, a communication timing calculation unit 311b, a communication timing determination unit 311c, a server-side communication control unit 311d, and a communication interface (hereinafter referred to as “communication interface”).
- 311e) (abbreviated as “communication I / F”).
- the travel permission section setting unit 311a refers to the map information of the master map information DB 316 and the operation management information DB 318, and in response to a request from each dump truck 20-1, the travel permission section setting unit 311a sets the dump truck 20-1 on the travel route 60.
- a front boundary point is set at a point ahead of the current position, and a rear boundary point is temporarily set at a position ahead of or at the current position of the dump truck 20-1 and behind the front boundary point. To do.
- the travel route 60 between the temporarily set front boundary point and the rear boundary point is temporarily set as a travel permission section in which travel is permitted to the dump truck 20-1 that has issued the request.
- travel permission request information for requesting the next travel permission section is transmitted from the dump truck 20-1 to a point separated by a predetermined distance on the basis of either the temporarily set front boundary point or the rear boundary point. Calculated as a point (hereinafter referred to as “provisional permission request point”). If it is assumed that the travel permission request information is transmitted from the calculated provisional permission request point and the communication congestion level of the wireless base station to be wirelessly connected is less than a predetermined threshold, the provisional front boundary point, the rear boundary point, And set as a permission request point.
- the communication timing calculation unit 311b calculates the communication timing for transmitting the permission request information from the temporary permission request point based on the traveling speed of the dump truck and the distance from the current position to the temporary permission request point.
- the communication timing calculation unit 311b calculates (assumes) the arrival time at the provisional permission request point using, for example, the following equation (1) on the assumption that the dump truck 20-1 moves at a constant speed. In the present embodiment, this arrival time is regarded as the communication timing of the permission request information.
- t expected arrival time t 0 to temporarily set authorization request point: the current time S 0: distance from the current position to the authorization request point that has been provisionally set V 0: speed of running the current position
- the communication timing determination unit 311c refers to the communication timing information DB 317, and when the traveling dump truck 20-1 transmits the permission request information from the provisional permission request point calculated by the travel permission section setting unit 311a, the communication timing determination unit 311c performs wireless connection.
- the predetermined threshold here is defined by time, the length of which is a time interval at which collision of permission request information transmitted to the same radio base station does not occur, and processing by the operation management server 31. It is preferable that the time interval is such that the timing does not overlap.
- a travel permission section having the temporarily set front boundary point and rear boundary point as ends is normally set by the travel permission section setting unit 311a. The determination process will be described later with reference to FIG.
- the server-side communication control unit 311d receives permission request information for each dump truck 20-1 and performs control to transmit permission response information indicating a travel permission section set according to the permission request information. In the second embodiment to be described later, control for transmitting position information of the permission request point is also performed.
- the communication I / F 311e is configured by hardware for communication connection with the server-side communication device 314, such as a USB (Universal Serial Bus) standard connection terminal.
- USB Universal Serial Bus
- the terminal-side control device 261 of the in-vehicle terminal device 26 includes a travel control unit 261a, a terminal-side communication control unit 261b, and a communication I / F 261c.
- the travel control unit 261a obtains the current position of the host vehicle from the position calculation device 269, refers to the map information in the terminal-side map information DB 266, and causes the host vehicle to travel according to the travel permission section included in the permission response information. Is controlled with respect to the travel control device 267. Further, the traveling control unit 261a determines the presence or absence of a front obstacle based on the detection result of the external sensor device 268, and also determines the presence or absence of an interference with the obstacle and a collision avoidance operation. Control for.
- the terminal-side communication control unit 261b transmits permission request information for requesting the next travel permission section to the operation management server 31 and performs control to receive permission response information from the operation management server 31.
- the communication I / F 261c is configured by hardware for communication connection with the terminal side communication device 264 such as a USB standard connection terminal.
- FIG. 4 is a diagram illustrating a configuration of an information format transmitted and received between the operation management server and the autonomous traveling dump truck, and (a) illustrates a permission request information format transmitted from the dump truck to the operation management server. (B) shows the permission response information format transmitted to the dump truck from the operation management server.
- the permission request information format 400 includes request identification information 401 for uniquely identifying the permission request information, and dump truck information 402 of the dump truck that has transmitted the permission request information.
- the dump truck information 402 includes a dump truck ID 402a that uniquely identifies the dump truck that has transmitted the permission request information, current position information 402b that indicates the current position of the dump truck calculated based on the positioning radio wave, and traveling speed and tire pressure. It includes state information 402c indicating the state of the equal dump truck.
- the permission response information format 410 includes response identification information 411 for uniquely identifying the response information and travel permission section information 412 indicating information related to the travel permission section.
- the response identification information 411 is information that can uniquely identify which permission request information is the response. As a result, even when the broadcast is transmitted from the operation management server 31 through the wireless communication line 40, each dump truck receives the response identification information 411, and the response information corresponding to the permission request information issued by the own vehicle. It can be identified.
- Travel permission section information 412 includes front boundary point information 412a, rear boundary point information 412b, and speed limit information 412c.
- FIG. 5 is a diagram showing communication timing information.
- the communication timing information table 500 shown in FIG. 5 is generated for each radio base station.
- the communication timing information table 500 records information related to the travel permitted section and communication timing for transmitting permission request information while traveling in the travel permitted section when a new travel permitted section is properly set. .
- the communication timing information table 500 includes a “dump truck ID” field 501, a “front boundary point information” field 502, a “rear boundary point information” field 503, a “permitted request point information” field 504, a “speed limit”. ”Field 505 and“ assumed communication timing ”field 506.
- the travel route 60 (see FIG. 1) on which the dump truck 20-1 travels is composed of various nodes on the travel route and sublinks connecting adjacent nodes. Each node has a one-to-one correspondence with the point coordinates of the node, and a point on the travel route can be uniquely specified by specifying the three-dimensional real coordinates or node ID of each point. .
- the “front boundary point information” field 502, the “rear boundary point information” field 503, and the “permitted request point information” field 504 are defined using node IDs. Among these, the “permission request point information” field 504 registers a node ID scheduled to transmit permission request information.
- the “assumed communication timing” 506 registers the timing for transmitting the permission request information from the permission request point of the travel permission section set in the normal state calculated by the communication timing determination unit 311c.
- FIG. 6A and 6B are diagrams showing a process for setting a travel permission section in the vehicle travel control system according to the present embodiment, in which FIG. 6A shows a state where the travel permission section n is traveling, and FIG. 6B shows a permission request. The state where the point has been reached is shown, (c) shows the setting state of the release interval and the first front boundary point, and (d) shows the setting state of the next front boundary point.
- the travel route 60 is defined to include a plurality of points (nodes) 61 and at least one or more sublinks 62.
- the travel permission section is a section that is given to each dump truck and may travel autonomously.
- FIG. 6A shows a travel permission section n including seven nodes 61 and six sublinks 62 that connect adjacent nodes.
- the dump truck 20-1 transmits permission request information while traveling in the immediately preceding travel permission section n-1 (not shown), and the permission transmitted from the operation management server 31 in response thereto. This is defined by the travel permitted section information (see reference numeral 412 in FIG. 4) included in the response information.
- the rear boundary point of the travel permitted section n is indicated by BP_bn
- the front boundary point is indicated by BP_fn.
- the permission request section is defined as up to four backward nodes including the front boundary point BP_fn as a reference. Note that the method for determining the permission request section is not limited to this, and the permission request section may be determined based on the rear boundary point. Further, the node located at the rearmost in the permission request section is a point where the dump truck 20-1 starts transmitting permission request information, and is hereinafter referred to as a permission request point (indicated by RP in the figure).
- the dump truck 20-1 when the dump truck 20-1 reaches the permission request point RP, the dump truck 20-1 passes through any one of the radio base stations (41-1, 41-2, 41-3). Then, information (permission request information) for requesting the next travel permission section information to the operation management server 31 is transmitted.
- the release section is a section in which the operation management server 31 releases the section set as the travel permission section in response to the previous travel permission request so that travel permission can be given to other dump trucks.
- the operation management server 31 sets the rear section as the release section from the node to which the dump truck 20-1 transmits the permission request information.
- the operation management server 31 sets a new travel permission section.
- the operation management server 31 sets the foremost end node in the release section as the rear boundary point BP_bn + 1 of the new travel permission section n + 1.
- the front boundary point BP_f (n + 1) ′ of the new travel permitted section n + 1 is temporarily set. Then, a provisional permission request section is set according to a predetermined condition (in the above, the forward boundary point is used as a reference, and up to four nodes including this are set as permission request sections), and the last end is set. It is calculated as a temporary permission request point RP_f (n + 1) ′. Then, the degree of communication congestion is determined.
- the “communication congestion level” here refers to the communication timing of the dump truck 20-1 that is the target of setting the travel permitted section, and the radio base station that is accessed when the dump truck 20-1 transmits permission request information.
- the time difference from the communication timing closest to the communication timing of the dump truck 20-1 is used.
- the difference in communication timing is less than a predetermined threshold, it is determined that the communication timing between the dump truck 20-1 and another dump truck is close, and communication is congested at the radio base station. If the difference in communication timing is equal to or greater than a predetermined threshold, it is determined that the communication timing between the dump truck 20-1 and the other dump truck is separated and communication is not congested at the radio base station.
- the provisional permission request point RP_ (n + 1) ′ is the timing at which the dump truck 20-1 reaches the provisional permission request point RP_ (n + 1) ′ and transmits the permission request information.
- a wireless base station having a communication area that covers, for example, 41-1 means that communication is congested. Therefore, at a point different from the temporarily set front boundary point BP_f (n + 1) ′, in FIG. 6D, a node further forward than BP_f (n + 1) ′ is temporarily set as the front boundary point BP_fn + 1 again.
- the communication congestion level of the provisional permission request point RP_n + 1 based on the front boundary point BP_fn + 1 is determined.
- a new travel permission section n + 1 with the front boundary point BP_fn + 1 as the foremost end is set. The result is transmitted as permission response information to the dump truck.
- the “front boundary point coordinates” 412a includes the coordinates of the node BP_fn + 1
- the “rear boundary point coordinates” 412b includes the node BP_bn + 1.
- the speed limit 412c is determined according to the distance between the vehicle ahead and the terrain information.
- FIG. 7 is a diagram illustrating an example of a state in which a plurality of dump trucks are located in the same communication area.
- FIG. 8 shows a process of setting a travel permission section in consideration of communication timing, (a) shows a state in which the travel permission section is set without considering communication timing in a plurality of dump trucks, (b) Indicates a state in which the travel permitted section is set without considering the communication timing (shifting the communication timing) in a plurality of dump trucks.
- FIG. 9 is a sequence diagram showing a flow of setting processing of a travel permission section in the vehicle travel control system according to the present embodiment.
- the radio base station 41-1 transmits radio waves to form a communication area 42-1 indicated by a circle, in which three dump trucks 20-1, 20-2, 20-3 travel. Assuming the situation.
- the traveling directions (traveling directions) of the dump trucks 20-1, 20-2, 20-3 are indicated by the front and rear directions of the figures showing the dump trucks 20-1, 20-2, 20-3.
- each of the dump trucks 20-1, 20-2, and 20-3 has a travel permission section having BP_f1, BP_f2, and BP_f3 as front boundary points.
- four subsequent nodes including the front boundary points BP_f1, BP_f2, and BP_f3 are set as permission request points RP_1, RP_2, and RP_3.
- the travel of each dump truck 20-1, 20-2, 20-3 is distributed so that the communication timing for transmitting permission request information from RP_1, RP_2, RP_3 to the radio base station 41-1 is dispersed.
- a permitted section is set.
- FIG. 8A shows a state where communication timings are dispersed.
- are time thresholds t and the communication timing t3 when the dump truck 20-3 transmits the permission request information from the permission request point RP_3. More than th . This indicates that the communication timing at which the radio base station 41-1 receives the permission request information from each of the dump trucks 20-1, 20-2, and 20-3 is dispersed.
- the permission request when permission request information is transmitted from a plurality of dump trucks to the same radio base station, the permission request is made so that the communication timings of the permission request information are distributed as shown in FIG. Set points and travel-permitted sections.
- the dump truck 20-1 autonomously travels in the travel permission section n where the operation management server 31 responds to the previous travel permission request (S901).
- the dump truck 20-1 When the dump truck 20-1 reaches the permission request point (S902), the dump truck 20-1 starts transmitting permission request information to the operation management server 31 (S903). More specifically, the terminal-side communication control unit 261b transmits permission request information to the operation management server 31 via the communication I / F 261c. Even after transmission, the dump truck 20-1 continues to travel in the travel permitted section n.
- the wireless base station 41-1 transfers permission request information to the operation management server 31 (S904).
- the travel permission section setting unit 311a sets a section behind the point indicated by the dump truck current position information (see reference numeral 402b in FIG. 4A) included in the received permission request information as a release section (S905).
- the section set as the release section is an area where other dump trucks can travel.
- the travel permission section setting unit 311a determines a new travel permission section n + 1 (S906). Details of this processing will be described later.
- the server-side communication control unit 311d transmits information (permission response information) indicating a new travel permission section n + 1 to the dump truck 20-1 via the communication I / F 311e (S907), and the radio base station 41-1 Transfers the permission request information (S908).
- the dump truck 20-1 receives the permission response information and autonomously travels in the new travel permitted section n + 1 (S909).
- FIG. 10 is a flowchart illustrating a flow of setting processing of a travel permission section by the operation management server.
- the operation management server 31 shifts to a waiting state for receiving permission request information from the dump truck 20-1 (S1002). While the permission request information is not received (S1003 / No), the process returns to step S1002 and waits for the reception of the permission request information.
- the travel permission section setting unit 311a confirms the current position information of the dump truck included in the permission request information (S1004), and based on the current position information of the dump truck, Is determined (S1005, corresponding to S905 in FIG. 9).
- the travel permission section setting unit 311a temporarily sets a boundary point of a new travel permission section (S1006).
- the rear boundary point is temporarily set using the foremost end of the release section.
- temporary setting in the present embodiment means a state until it is determined to be used as a boundary point of a new travel permitted section, and the temporarily set front boundary point, rear boundary point, permission request point Regardless of whether there is any change. Therefore, the front boundary point, the rear boundary point, and the permission request point until a new travel permission section is set are all temporarily set.
- the operation management server 31 When the operation management server 31 temporarily sets the front boundary point, the operation management server 31 sets the front boundary point in a section where other dump trucks are not traveling.
- a provisional permission request section and a setting permission request point calculated backward from the temporarily set boundary point are calculated (S1007).
- the provisional permission request section and the provisional permission request point RP_ (n + 1) ′ are calculated based on the front boundary point.
- the communication timing determination unit 311b refers to the communication timing information table 500 stored in the communication timing information DB 317, and the communication timing of the provisional permission request point RP_ (n + 1) ′ is already included in the communication timing information table 500. If the communication timing is close to the communication timing of the dump truck, and if it is far from any communication timing, that is, the wireless to which the permission request information is transmitted from the temporary permission request point RP_ (n + 1) ′ ′ The difference between all the communication timings at which the other dump trucks transmit the permission request information to the base station and the communication timings at which the permission request information from the temporary permission request point RP_ (n + 1) ′ is transmitted is a predetermined threshold value.
- provisional setting in step S1006 Was set from the front boundary point BP_fn + 1 to the normal up rear boundary point BP_bn + 1 as a new travel permission section n + 1. Then, the new travel permission section n + 1 and the position information of the permission request point are notified to the dump truck (S1009).
- the travel permission section setting unit 311a checks whether the front boundary point can be changed and can change it. If not (S1010 / No), the travel permission section setting unit 311a transmits a stop command to the dump truck 20-1 (S1011).
- the temporarily set forward boundary point is changed forward or backward, and temporarily set again (S1012). At this time, it is desirable to give priority to changing to the front. As a result, the dump truck 20-1 continues to travel autonomously, and as a result, it becomes easy to suppress the inconvenience that the dump truck 20-1 passes through the newly set forward boundary point.
- step S1007 the process returns to step S1007 to calculate a provisional permission request point based on the temporarily set forward boundary point again and evaluate the communication timing (S1008).
- the dump truck can perform wireless communication at a timing when the wireless base station is not congested.
- FIG. 11 is a flowchart showing the flow of a dump truck travel control process.
- the dump truck 20-1 always recognizes its own position by the position calculation device 269 while traveling in the travel permission section determined by the previous travel permission response (S1101). Then, the traveling control unit 261a determines whether or not the current position has reached the permission request point (S1102). When it is recognized that the dump truck 20-1 has not reached the permission request point (No in S1102), the process returns to step S1102, and continues to determine whether the permission request point has been reached.
- the communication control unit 261b transmits permission request information to the operation management server 31 (S1103).
- the communication control unit 261b starts measuring the elapsed time after transmitting the permission request information.
- the travel control unit 261a determines whether or not the current position has exceeded the travel permitted section (S1105). When the current position of the dump truck 20-1 exceeds the given travel permission section (S1105 / Yes), there is a possibility of collision with another dump truck. In response to this, a travel stop command is output, and the travel control device 267 controls the travel drive device for stopping the vehicle (S1106).
- the communication control unit 261b also determines whether or not the waiting time for receiving the permission response information exceeds a preset time-out time. When the time-out time is exceeded (S1107 / Yes), the permission request information is sent to the operation management server 31 for some reason. Therefore, the process returns to S1103 and transmits the permission request information again. At this time, the value of the time counter is also returned to 0, and time measurement is resumed.
- the communication control unit 261b When the communication control unit 261b receives the permission response information (S1108 / Yes) before the reception time-out time (S1107 / No), it updates to a new travel permitted section based on the received information (S1109) and continues autonomous travel. To do. If the communication control unit 261b does not receive a travel permission response before the reception timeout time (S1107 / No) (S1108 / No), the process returns to step S1104 and waits for reception of permission response information.
- the travel permission section can be set in consideration of the communication timing.
- the travel permission section is set in consideration of the communication timing itself rather than adding a technical change to the wireless communication device, whichever of the communication methods of the wireless communication device,
- the present invention can also be applied to such a wireless communication apparatus.
- general-purpose products such as Wi-Fi and IEEE-compliant products may be used, so that the cost is reduced as compared with the case where a dedicated machine is used by directly changing the radio communication device.
- each dump truck does not need to have a special configuration or control for controlling the communication timing, so there is an advantage that the design of the dump truck is simplified.
- the boundary point of the travel permission section is determined so that the communication timings of the plurality of dump trucks are dispersed.
- the permission request point is determined while the boundary point is fixed.
- a permission request point is calculated based on a predetermined condition based on either the front boundary point or the rear boundary point of the travel permission section. Therefore, although the position information of the front boundary point or the rear boundary point is transmitted from the operation management server, the information on the permission request point does not need to be included in the wireless communication by calculating on the dump truck side.
- the second embodiment is different from the first embodiment in that the operation management server determines permission request points and wirelessly transmits information indicating the position. Since the hardware configuration and functional blocks are the same as those in the first embodiment, a duplicate description is omitted.
- FIG. 12 is a diagram showing the configuration of the permission response information format according to the second embodiment.
- FIG. 12 shows an example of the permission response information format that the operation management server 31 transmits to the dump truck 20-1.
- the permission response information format 1200 includes information (hereinafter referred to as “permission request point information”) 1201 indicating permission request points set by the operation management server 31 in addition to the configuration of the permission response information format 410 of the first embodiment.
- the dump truck 20-1 can refer to the received travel permission information and transmit the permission request information at the point indicated by the permission request point information included therein.
- FIG. 13 is a diagram illustrating a process for setting a travel permission section in the second embodiment, where (a) illustrates a case where the communication timing difference between temporarily set permission request points is less than a threshold, and (b) illustrates Next, a state in which the communication timing difference between the temporarily set permission request points is equal to or greater than a threshold value is shown.
- FIG. 14 is a flowchart showing a flow of setting processing of a travel-permitted section by the operation management server according to the second embodiment.
- the travel permission section setting unit 311a first provisionally sets the front boundary point BP_fn + 1 of the new travel permission section n + 1.
- the rear boundary point BP_bn + 1 is set to the node of the foremost end point of the release section, as in the first embodiment.
- a provisional permission request point RP_ (n + 1) ′ is set with reference to the front boundary point BP_fn + 1.
- a new provisional permission request point RP_n + 1 is set while the front boundary point BP_fn + 1 is fixed.
- the processing operation of the operation management server according to this embodiment is the same as the operation in the first embodiment from the main power-on (step S1001 in FIG. 10) until the rear release section is set (step S1005 in FIG. 8). Since this is the same as the travel permission section determination process of the management server, the step numbers in FIG. 10 are also used in FIG.
- the travel section setting unit 311a provisionally sets the front boundary point BP_fn + 1 and the rear boundary point BP_bn + 1 (S1401)
- the provisional permission request point RP_ (n + 1) ′ according to a predetermined condition based on the front boundary point BP_fn + 1. Is calculated (S1402).
- the provisional permission request point is changed backward or forward (S1407), and the difference in communication timing is determined again (S1403).
- the permission request point can be set at a point with good communication timing.
- the present embodiment it is possible to set the travel permitted section by distributing the communication timings of the plurality of dump trucks without changing the boundary point of the travel permitted section. Therefore, communication congestion at the radio base station can be alleviated and occurrence of collision can be suppressed, so that radio communication quality can be improved.
- FIG. 15 is a diagram illustrating an example of a processing operation for managing a communication timing across a plurality of radio base stations and determining a travel permission section in the third embodiment.
- FIG. 16 shows a communication timing information table configuration example held by the operation management server in the third embodiment. Since the hardware configuration and functional blocks are the same as those in the first embodiment, a duplicate description is omitted.
- radio base stations 41-1, 41-2, 41-3, and 41-4 that use the same frequency, and a plurality of radio base stations that communicate with the respective radio base stations.
- the difference is that the dump trucks 20-1, 20-2, and 20-3 are collectively managed.
- the wireless base station 41-1 transmits radio waves to form a wireless communication area 42-1 indicated by a circle.
- each of the radio base stations 41-2, 41-3, and 41-4 forms radio communication areas 42-2, 42-3, and 42-4 indicated by circles. It is also assumed that there is a travel route 60 composed of nodes and sublinks.
- the dump truck 20-1 travels within the radio communication area 42-2, the dump truck 20-3 is within the radio communication area 42-1, and the dump truck 20-3 is within the radio communication area 42-2. Is running.
- the travel permission section 311a of the operation management server 31 temporarily sets the boundary point of the travel permission section across these wireless communication areas when the frequencies of the adjacent wireless communication areas are the same.
- a provisional permission request point RP_3 is calculated according to a predetermined condition (for example, the four rearward points including the front boundary point BP_f3 are provisional permission request points).
- the temporary permission request point RP_3 is a point in the wireless communication area 42-4 of the wireless base station 41-4, all of the communication timings for transmitting permission request information from other dump trucks to the wireless base station 41-4, and the dump If the difference between the track 20-3 and the communication timing at which the permission request information is transmitted from the provisional permission request point RP_3 is equal to or greater than a predetermined threshold, a travel permission section having the provisionally determined front boundary point BP_f3 as the foremost end is set. .
- FIG. 16 shows a communication timing information table configuration example held by the operation management server in this embodiment.
- the communication timing information table 1600 includes a “base station ID” field 1601 and a “frequency channel” field in addition to the communication timing information table 500 (see FIG. 5) described above. 1602 is included.
- the base station ID is information that uniquely identifies the radio base stations 41-1, 41-2, 41-3, and 41-4. For example, a MAC address (Media Access Control address) may be used.
- MAC address Media Access Control address
- “Frequency channel” indicates a frequency allocated to each base station.
- Adjacent radio base stations may use the same frequency (1ch). In this case, these adjacent radio base stations (Y n ⁇ 1 , When the dump truck 20-1 travels and moves between Y n ) communication areas, wireless communication can be performed without switching the frequency. Therefore, in such a case, one travel permission section is set across a plurality of radio base stations.
- the travel permission section can be set by distributing communication timings across radio base stations having the same frequency, the degree of freedom can be increased when setting the travel permission section.
- the number of times permission request information is transmitted can be reduced over the entire travel route, so the probability that communication timings overlap will be reduced.
- the third embodiment may be combined with the second embodiment.
- the rear boundary point is set to the frontmost point of the release section, but is not limited thereto, and may be set before the frontmost point.
- the travel permission section is described as being between the front boundary point and the rear boundary point, but may be a travel permission section from the front boundary point to the current position of the dump truck. That is, the travel permission section setting unit may set a travel permission section that is open at the rear and defines a forward limit point. In this case, a provisional permission request point is calculated based on the front boundary point. Even in such an aspect, the effect of the present invention can be achieved by setting the front boundary point in consideration of the radio quality.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Traffic Control Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
Description
[システム構成]
第一実施形態は、鉱山においてショベルやホイールローダ等の積込機が積み込んだ土砂や鉱石を搬送する運搬車両と、積込機及び運搬車両の位置や走行状態を管制する管制センタとを無線通信ネットワークで接続した車両走行管制システムに係り、特に無線通信の基地局の通信タイミングを考慮して、運搬車両の走行区間を決定する点に特徴がある。以下、本発明の第一実施形態に係る車両走行管制システムについて、図面を参照しながら説明する。また下記の実施形態では、運搬車両の例としてダンプトラックを用いて説明するが、運搬車両はダンプトラックに限定されない。
(数1)
t=t0+S0/V0
但し、t:仮設定された許可要求点への想定到着時刻
t0:現在時刻
S0:現在位置から仮設定された許可要求点までの距離
V0:現在位置を走行中の速度
以下、図6を参照して、本実施形態に係る車両走行管制システムの処理動作について説明する。図6は、本実施形態に係る車両走行管制システムにおける走行許可区間の設定処理を示す図であって、(a)は走行許可区間nを走行中の状態を示し、(b)は、許可要求点に到達した状態を示し、(c)は、解放区間及び最初の前方境界点の設定状態を示し、(d)は、次の前方境界点の設定状態を示す。
第一実施形態では複数のダンプトラックの通信タイミングが分散するように走行許可区間の境界点を決定したが、第二実施形態では、境界点は固定したままで、許可要求点を決定する。
以下、図12を用いて、第二実施形態に係る車両走行管制システムの構成について説明する。図12は、第二実施形態に係る許可応答情報フォーマットの構成を示す図である。
以下、図13及び図14に基づいて、第二実施形態に係る処理動作について説明する。図13は、第二実施形態における走行許可区間の設定処理を示す図であって、(a)は仮設定した許可要求点の通信タイミングの差が閾値未満である場合を示し、(b)は、次に仮設定した許可要求点の通信タイミングの差が閾値以上である状態を示す。図14は、第二実施形態に係る運行管理サーバによる走行許可区間の設定処理の流れを示すフローチャートである。
[システム構成]
第一実施形態では、1つの無線基地局における通信タイミングを管理する実施形態であったが、本実施形態は、通信タイミングの管理を複数の無線基地局にまたがって行う点で異なる。以下、図15及び図16を参照して第三実施形態について説明する。図15は、第三実施形態における複数の無線基地局にまたがって通信タイミングを管理し、走行許可区間を決定する処理動作の一例を示す図である。図16は、第三実施形態において、運行管理サーバが保持する通信タイミング情報テーブル構成例を示す。ハードウェア構成及び機能ブロックは、第一実施形態と同様であるので重複説明を省略する。
図16に、本形態例における、運行管理サーバが保持する通信タイミング情報テーブル構成例を示す。
また、上記において、走行許可区間は、前方境界点及び後方境界点の間として説明したが、前方境界点からダンプトラックの現在位置までの走行許可区間としてもよい。すなわち、走行許可区間設定部は、後方が解放されており、前進の限界地点を規定する走行許可区間を設定してもよい。この場合、前方境界点を基準として暫定許可要求点を算出する。このような態様においても、無線品質を考慮して前方境界点を設定することで、本発明の効果を奏することができる。
10-1、10-2 ショベル
20-1、20-2 ダンプトラック
31 運行管理サーバ
40 無線通信回線
41-1、41-2、41-3 無線基地局
60 走行経路
61 ノード
62 サブリンク
Claims (6)
- 鉱山の構内を予め定められた走行経路に沿って走行する複数の運搬車両、及びそれら複数の運搬車両の運行を管理する運行管理サーバが、無線基地局を介して通信接続された車両走行管制システムであって、
前記複数の運搬車両の其々に対して、前記走行経路上の部分区間を各運搬車両の走行を許可する走行許可区間として設定するとともに、当該走行許可区間内にあって、当該走行許可区間の前方に位置する次の走行許可区間の設定を要求するための許可要求情報を送信する地点である許可要求点を算出する走行許可区間設定部と、
前記各運搬車両から前記運行管理サーバに対して、前記無線基地局を介して前記許可要求情報を送信する通信タイミングを算出する通信タイミング算出部と、
同一の前記無線基地局に対して、前記複数の運搬車両のうちの一の運搬車両が前記許可要求情報を送信する通信タイミングと、前記複数の運搬車両のうちの他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が所定の閾値以上であるか否かを判定する通信タイミング判定部と、
を備え、
前記走行許可区間設定部は、前記一の運搬車両に対して、前記走行許可区間を仮設定するとともに、その仮設定された走行許可区間に対応する暫定許可要求点を算出し、
前記通信タイミング算出部は、前記暫定許可要求点から前記許可要求情報を送信する通信タイミングを算出し、
前記通信タイミング判定部は、前記一の運搬車両が前記暫定許可要求点から前記許可要求情報を送信する通信タイミングと、前記他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が前記所定の閾値以上であるか否かを判定し、
前記走行許可区間設定部は、前記通信タイミングの差が前記所定の閾値以上である場合に、前記仮設定された走行許可区間を正規の走行許可区間として設定する、
ことを特徴とする車両走行管制システム。 - 前記走行許可区間設定部は、前記一の運搬車両に対して前記走行許可区間の前端部である前方境界点を仮設定し、当該前方境界点を基準として所定の条件に従って前記暫定許可要求点を算出し、当該暫定許可要求点から前記許可要求情報を送信する通信タイミングと、前記他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が前記所定の閾値未満である場合に、前記仮設定された前方境界点とは異なる地点を新たな前方境界点として再度仮設定し、その再度仮設定された前方境界点を基準として前記所定の条件に従って新たな暫定許可要求点を算出し、当該新たな暫定許可要求点から前記一の運搬車両が前記許可要求情報を送信する通信タイミングと、前記他の運搬車両の通信タイミングと、の差が前記所定の閾値以上である場合に、前記再度仮設定された前方境界点を前端部とする部分区間を、正規の走行許可区間として設定する、
ことを特徴とする請求項1に記載の車両走行管制システム。 - 前記走行許可区間設定部は、前記一の運搬車両に対して前記走行許可区間の前端部である前方境界点及び後端部である後方境界点を仮設定し、これらの仮設定された前記前方境界点又は前記後方境界点を基準として前記暫定許可要求点を算出し、当該暫定許可要求点から前記許可要求情報を送信する通信タイミングと、前記他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が前記所定の閾値未満である場合に、前記仮設定された前方境界点及び後方境界点との間にあって、前記暫定許可要求点とは異なる地点を新たな暫定許可要求点として算出し、その再度算出された暫定許可要求点から前記一の運搬車両が前記許可要求情報を送信する通信タイミングと、前記他の運搬車両の通信タイミングと、の差が前記所定の閾値以上である場合に、前記仮設定された前方境界点及び後方境界点の間の部分区間を、正規の走行許可区間として設定する、
ことを特徴とする請求項1に記載の車両走行管制システム。 - 複数の隣接する前記無線基地局が同一の周波数を用いる場合に、前記走行許可区間設定部は、前記複数の隣接する無線基地局の通信エリア間をまたいで前記走行許可区間を仮設定する、
ことを特徴とする請求項1に記載の車両走行管制システム。 - 前記通信タイミング算出部は、前記各運搬車両の現在位置及び走行速度を基に前記通信タイミングを算出する、
ことを特徴とする請求項1に記載の車両走行管制システム。 - 鉱山の構内を予め定められた走行経路に沿って走行する複数の運搬車両と無線基地局を介して通信接続された運行管理サーバであって、
前記複数の運搬車両の其々に対して、前記走行経路上の部分区間を各運搬車両の走行を許可する走行許可区間として設定するとともに、当該走行許可区間内にあって、当該走行許可区間の前方に位置する次の走行許可区間の設定を要求するための許可要求情報を送信する地点である許可要求点を算出する走行許可区間設定部と、
前記各運搬車両から前記運行管理サーバに対して、前記無線基地局を介して前記許可要求情報を送信する通信タイミングを算出する通信タイミング算出部と、
同一の前記無線基地局に対して、前記複数の運搬車両のうちの一の運搬車両が前記許可要求情報を送信する通信タイミングと、前記複数の運搬車両のうちの他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が所定の閾値以上であるか否かを判定する通信タイミング判定部と、
前記走行許可区間設定部が設定した走行許可区間を示す許可応答情報を前記各運搬車両に対して送信するサーバ側通信制御部と、を備え、
前記走行許可区間設定部は、前記一の運搬車両に対して、前記走行許可区間を仮設定するとともに、その仮設定された走行許可区間に対応する暫定許可要求点を算出し、
前記通信タイミング算出部は、前記暫定許可要求点から前記許可要求情報を送信する通信タイミングを算出し、
前記通信タイミング判定部は、前記一の運搬車両が前記暫定許可要求点から前記許可要求情報を送信する通信タイミングと、前記他の運搬車両が前記許可要求情報を送信する通信タイミングと、の差が前記所定の閾値以上であるか否かを判定し、
前記走行許可区間設定部は、前記通信タイミングの差が前記所定の閾値以上である場合に、前記仮設定された走行許可区間を正規の走行許可区間として設定する、
ことを特徴とする運行管理サーバ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014388516A AU2014388516B2 (en) | 2014-03-27 | 2014-12-25 | Vehicle driving management system and operation management server |
US14/917,349 US10089873B2 (en) | 2014-03-27 | 2014-12-25 | Vehicle travel route control system and fleet management server |
CA2923970A CA2923970C (en) | 2014-03-27 | 2014-12-25 | Vehicle travel control system and fleet management server |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-066879 | 2014-03-27 | ||
JP2014066879A JP6153882B2 (ja) | 2014-03-27 | 2014-03-27 | 車両走行システム及び運行管理サーバ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015145908A1 true WO2015145908A1 (ja) | 2015-10-01 |
Family
ID=54194474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/084395 WO2015145908A1 (ja) | 2014-03-27 | 2014-12-25 | 車両走行管制システム及び運行管理サーバ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10089873B2 (ja) |
JP (1) | JP6153882B2 (ja) |
AU (1) | AU2014388516B2 (ja) |
CA (1) | CA2923970C (ja) |
WO (1) | WO2015145908A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220356052A1 (en) * | 2021-05-07 | 2022-11-10 | Hyundai Motor Company | System and method for remotely controlling vehicle |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6247616B2 (ja) * | 2014-08-25 | 2017-12-13 | 日立建機株式会社 | 無線システム及び運行管理サーバ |
DE112015006256B4 (de) * | 2015-03-05 | 2024-04-18 | Mitsubishi Electric Corporation | Zugsteuerungssystem, basisstation-steuerungseinrichtung, bodendrahtlosbasisstation und fahrzeugdrahtlosstation |
CN108702808B (zh) * | 2016-01-29 | 2021-06-08 | 华为技术有限公司 | 用于接收和处理车辆控制信息和/或交通状况信息的基站 |
SG10201609375XA (en) * | 2016-11-09 | 2018-06-28 | Cyclect Electrical Eng Pte Ltd | Vehicle, system and method for remote convoying |
JP6492234B2 (ja) | 2016-12-06 | 2019-03-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America | 情報処理装置及び情報処理方法 |
CN110226078B (zh) * | 2016-12-22 | 2024-04-26 | 日产北美公司 | 自动车辆服务系统 |
US10585440B1 (en) * | 2017-01-23 | 2020-03-10 | Clearpath Robotics Inc. | Systems and methods for using human-operated material-transport vehicles with fleet-management systems |
JP6824851B2 (ja) * | 2017-09-12 | 2021-02-03 | 日立建機株式会社 | 放土位置決定装置 |
WO2019144222A1 (en) | 2018-01-24 | 2019-08-01 | Clearpath Robotics Inc. | Systems and methods for maintaining vehicle state information |
WO2019153082A1 (en) | 2018-02-07 | 2019-08-15 | Clearpath Robotics Inc. | Communication systems for self-driving vehicles, and methods of providing thereof |
JP6946227B2 (ja) * | 2018-03-29 | 2021-10-06 | 株式会社小松製作所 | 作業車両の制御システム、方法、及び作業車両 |
JP7149567B2 (ja) * | 2018-07-03 | 2022-10-07 | パナソニックIpマネジメント株式会社 | 移動体制御システム、移動体システム、移動体制御方法及びプログラム |
CN110830526B (zh) * | 2018-08-07 | 2022-04-05 | 大唐移动通信设备有限公司 | 车联网通信方法、设备、车载终端及车联网通信系统 |
DE102019204749A1 (de) * | 2019-04-03 | 2020-03-19 | Thyssenkrupp Ag | Verfahren und Einrichtung zum automatisierten Betrieb einer vorwiegend im Tagebau einsetzbaren Materialgewinnungsanlage |
DE102019204844A1 (de) * | 2019-04-04 | 2020-10-08 | Thyssenkrupp Ag | Verfahren und Vorrichtung zur Regelung der Bewegung einer mobilen Fahrwerks-Anordnung, insbesondere eines mit Raupenfahrwerken ausgestatteten mobilen Förderbrückensystems, über multiple individuell geschwindigkeitsregelbare Antriebseinheiten |
JP7197428B2 (ja) * | 2019-05-08 | 2022-12-27 | 日立建機株式会社 | 車両制御システム |
US11674288B2 (en) | 2019-05-30 | 2023-06-13 | Deere & Company | System and method for obscurant mitigation |
WO2020243908A1 (zh) * | 2019-06-04 | 2020-12-10 | 深圳市虹鹏能源科技有限责任公司 | 一种隧道施工车辆的车载系统 |
JP7331531B2 (ja) * | 2019-07-29 | 2023-08-23 | トヨタ自動車株式会社 | 遠隔操作システム、プログラム及び車両 |
JP6997823B2 (ja) * | 2020-03-16 | 2022-01-18 | 日立建機株式会社 | 作業機械 |
JP6876178B1 (ja) * | 2020-03-31 | 2021-05-26 | 日立建機株式会社 | 交通管制サーバ及び交通管制システム並びに交通管制サーバと無線通信可能な表示装置 |
CN114179803B (zh) * | 2021-12-29 | 2024-04-05 | 吉林大学 | 一种基于虚拟弹簧阻尼的矿用自卸车二维队列控制系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998037468A1 (fr) * | 1997-02-20 | 1998-08-27 | Komatsu Ltd. | Systeme de surveillance de vehicules |
JP2000339028A (ja) * | 1999-05-31 | 2000-12-08 | Komatsu Ltd | 移動局のデータ共有装置 |
JP2001141469A (ja) * | 1999-11-18 | 2001-05-25 | Toyota Motor Corp | 経路案内情報提供装置および経路案内情報提供システム |
Family Cites Families (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3483829A (en) * | 1966-03-10 | 1969-12-16 | Leonard D Barry | Container,routing storage,and transfer system |
GB8626358D0 (en) * | 1986-11-04 | 1986-12-03 | British Railways Board | Control systems |
ZA952853B (en) * | 1994-04-18 | 1995-12-21 | Caterpillar Inc | Method and apparatus for real time monitoring and co-ordination of multiple geography altering machines on a work site |
US5623413A (en) * | 1994-09-01 | 1997-04-22 | Harris Corporation | Scheduling system and method |
US6065406A (en) * | 1998-06-24 | 2000-05-23 | Katzer; Matthew A. | Model train control system |
JP3065036B2 (ja) * | 1998-10-02 | 2000-07-12 | 株式会社東芝 | 車両交通制御装置 |
US6980894B1 (en) * | 1999-04-14 | 2005-12-27 | San Francisco Bay Area Rapid Transit | Method of managing interference during delay recovery on a train system |
US6418854B1 (en) * | 2000-11-21 | 2002-07-16 | Edwin R. Kraft | Priority car sorting in railroad classification yards using a continuous multi-stage method |
FR2856645B1 (fr) * | 2003-06-27 | 2005-08-26 | Alstom | Dispositif et procede de commande de trains, notamment du type ertms |
US7810761B2 (en) * | 2005-01-28 | 2010-10-12 | Parisi Anthony R | Decoder for a stationary switch machine |
US7549610B1 (en) * | 2005-12-21 | 2009-06-23 | A. J. Ireland | Control expansion for conventionally powered model railroads |
US7484169B2 (en) * | 2006-02-15 | 2009-01-27 | General Electric Company | Implicit message sequence numbering for locomotive remote control system wireless communications |
US8538608B2 (en) * | 2009-09-09 | 2013-09-17 | General Electric Company | Control system and method for remotely isolating powered units in a rail vehicle system |
US7869407B2 (en) * | 2006-03-21 | 2011-01-11 | Edge Velocity Corporation | Wireless router and software |
DE102006015204A1 (de) * | 2006-03-30 | 2007-10-18 | Claas Selbstfahrende Erntemaschinen Gmbh | Verfahren zur Erstellung eines Routenplans für landwirtschaftliche Maschinensysteme |
US8702043B2 (en) * | 2010-09-28 | 2014-04-22 | General Electric Company | Rail vehicle control communication system and method for communicating with a rail vehicle |
US7835712B1 (en) * | 2006-12-19 | 2010-11-16 | Palm, Inc. | Apparatus and methods for providing multi-band operation in a mobile computing device |
US7778213B2 (en) * | 2007-02-23 | 2010-08-17 | Gm Global Technology Operations, Inc. | Method and system for selectively communicating with mobile platforms |
DE102007031138A1 (de) * | 2007-06-29 | 2009-01-02 | Siemens Ag | Verfahren und Anordnung zum Betreiben einer Eisenbahnstrecke |
US8103438B2 (en) * | 2007-09-26 | 2012-01-24 | Trimble Navigation Limited | Method and system for automatically directing traffic on a site |
US8144000B2 (en) * | 2007-09-26 | 2012-03-27 | Trimble Navigation Limited | Collision avoidance |
US8386134B2 (en) * | 2007-09-28 | 2013-02-26 | Caterpillar Inc. | Machine to-machine communication system for payload control |
US8755936B2 (en) * | 2008-01-28 | 2014-06-17 | Seegrid Corporation | Distributed multi-robot system |
EP2252190B1 (en) * | 2008-01-28 | 2012-05-23 | Seegrid Corporation | Service robot and method of operating same |
CN101970186A (zh) * | 2008-01-28 | 2011-02-09 | 塞格瑞德公司 | 与机器人进行实时交互的方法 |
US8132513B2 (en) * | 2009-09-11 | 2012-03-13 | Disney Enterprises, Inc. | Amusement park ride with a vehicle drive that decouples upon loss of power |
US8612071B2 (en) * | 2009-10-23 | 2013-12-17 | Integrated Transportation Technologies, L.L.C. | Synchronized express and local trains for urban commuter rail systems |
US20110218833A1 (en) * | 2010-03-02 | 2011-09-08 | International Business Machines Corporation | Service class prioritization within a controllable transit system |
US20110218835A1 (en) * | 2010-03-02 | 2011-09-08 | International Business Machines Corporation | Changing priority levels within a controllable transit system |
DE102010031344A1 (de) * | 2010-07-14 | 2012-01-12 | Deere & Company | System zur Kontrolle einer Arbeitsmaschine |
US9475391B2 (en) * | 2010-07-21 | 2016-10-25 | General Electric Company | Method and system for vehicle power distribution and management |
US9199653B2 (en) * | 2010-10-13 | 2015-12-01 | General Electric Company | Communication system and method for communicating between vehicles of a vehicle consist |
US8914167B2 (en) * | 2010-10-13 | 2014-12-16 | General Electric Company | Communication system for a rail vehicle and method for communicating with a rail vehicle |
JPWO2012133410A1 (ja) * | 2011-03-31 | 2014-07-28 | 日立建機株式会社 | 運搬機械の位置調整支援システム |
US8532566B2 (en) * | 2011-06-08 | 2013-09-10 | Andrew Llc | System and method for reducing desensitization of a base station transceiver for mobile wireless repeater systems |
JP5539590B2 (ja) * | 2011-06-23 | 2014-07-02 | 三菱電機株式会社 | 列車運行制御システム |
EP2736761A2 (de) * | 2011-09-29 | 2014-06-04 | Siemens Aktiengesellschaft | Fahrleitungsanlage zur traktionsversorgung eines elektrischen triebfahrzeuges |
JP5759331B2 (ja) * | 2011-09-30 | 2015-08-05 | 日本信号株式会社 | 列車制御システム |
JP5940789B2 (ja) * | 2011-09-30 | 2016-06-29 | 日本信号株式会社 | 列車制御システム |
KR101781208B1 (ko) * | 2011-12-08 | 2017-09-22 | 한국전자통신연구원 | 철도 무선 통신을 위한 주파수 제어 장치 및 방법 |
US20130278441A1 (en) * | 2012-04-24 | 2013-10-24 | Zetta Research and Development, LLC - ForC Series | Vehicle proxying |
US10077060B2 (en) * | 2012-07-11 | 2018-09-18 | Carnegie Mellon University | Railroad interlocking system with distributed control |
DE102012216405A1 (de) * | 2012-09-14 | 2014-04-10 | Siemens Aktiengesellschaft | Betrieb eines Schienenfahrzeugs mittels ETCS-Einrichtung |
DE102012217777A1 (de) * | 2012-09-28 | 2014-04-03 | Siemens Aktiengesellschaft | Steuerung eines Schienenfahrzeugs |
US9244464B2 (en) * | 2013-01-28 | 2016-01-26 | Caterpillar Inc. | Machine control system having autonomous edge dumping |
KR102034030B1 (ko) * | 2013-04-24 | 2019-10-18 | 한국전자통신연구원 | 무선통신 망 이중화 방법 및 장치 |
US9892176B2 (en) * | 2013-08-27 | 2018-02-13 | Here Global B.V. | Method and apparatus for providing a smart address finder |
EP2843997B1 (de) * | 2013-08-30 | 2016-06-15 | Swisscom AG | Mobile virtuelle basisstation |
JP6025848B2 (ja) * | 2013-09-11 | 2016-11-16 | 日立建機株式会社 | 車両の管制制御システム |
US9868353B2 (en) * | 2014-01-06 | 2018-01-16 | Ford Global Technologies, Llc | In-vehicle configurable soft switches |
JP6270518B2 (ja) * | 2014-02-05 | 2018-01-31 | 日立建機株式会社 | 作業車両の管制システム |
JP6211449B2 (ja) * | 2014-03-27 | 2017-10-11 | 日立建機株式会社 | 運行管理サーバ、車載端末装置、及び運行管理システム |
US9195402B1 (en) * | 2014-07-15 | 2015-11-24 | Oracle International Corporation | Target and initiator mode configuration of tape drives for data transfer between source and destination tape drives |
EP2974939B1 (en) * | 2014-07-17 | 2023-06-07 | Hitachi, Ltd. | Train management system |
US9605415B2 (en) * | 2014-09-12 | 2017-03-28 | Caterpillar Inc. | System and method for monitoring a machine |
-
2014
- 2014-03-27 JP JP2014066879A patent/JP6153882B2/ja active Active
- 2014-12-25 US US14/917,349 patent/US10089873B2/en active Active
- 2014-12-25 AU AU2014388516A patent/AU2014388516B2/en active Active
- 2014-12-25 CA CA2923970A patent/CA2923970C/en active Active
- 2014-12-25 WO PCT/JP2014/084395 patent/WO2015145908A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998037468A1 (fr) * | 1997-02-20 | 1998-08-27 | Komatsu Ltd. | Systeme de surveillance de vehicules |
JP2000339028A (ja) * | 1999-05-31 | 2000-12-08 | Komatsu Ltd | 移動局のデータ共有装置 |
JP2001141469A (ja) * | 1999-11-18 | 2001-05-25 | Toyota Motor Corp | 経路案内情報提供装置および経路案内情報提供システム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220356052A1 (en) * | 2021-05-07 | 2022-11-10 | Hyundai Motor Company | System and method for remotely controlling vehicle |
Also Published As
Publication number | Publication date |
---|---|
AU2014388516A1 (en) | 2016-04-07 |
US10089873B2 (en) | 2018-10-02 |
CA2923970C (en) | 2018-03-06 |
AU2014388516B2 (en) | 2017-02-02 |
CA2923970A1 (en) | 2015-10-01 |
US20160217690A1 (en) | 2016-07-28 |
JP6153882B2 (ja) | 2017-06-28 |
JP2015191341A (ja) | 2015-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6153882B2 (ja) | 車両走行システム及び運行管理サーバ | |
JP6211449B2 (ja) | 運行管理サーバ、車載端末装置、及び運行管理システム | |
AU2014407787B2 (en) | Driving assistance system, vehicle, driving assistance terminal device, and driving assistance program | |
AU2015200254B2 (en) | Vehicle control system | |
JP6302596B2 (ja) | 交通管制サーバ及びシステム | |
US10140871B2 (en) | Wireless system and operation management server | |
WO2015151359A1 (ja) | 車両走行管制システム及び管制サーバ | |
AU2021247535B2 (en) | Traffic control server, traffic control system, and display device capable of wireless communication with traffic control server | |
JP6539502B2 (ja) | 無線通信システム、管制サーバ、及び基地局切替動作制御方法 | |
JP5976700B2 (ja) | 地図生成システム | |
JP6314027B2 (ja) | 車両走行システム、運行管理サーバ | |
JP6325655B2 (ja) | 交通管制サーバ及びシステム | |
JP6339412B2 (ja) | 交通管制サーバ | |
JPH09508740A (ja) | 自律走行車両システムにおける資源に対するアクセスを管理するシステム及び方法 | |
JP2017010110A5 (ja) | ||
US9208691B2 (en) | Machine system having overtaking functionality | |
JP2018047813A (ja) | 放土管制制御装置及び放土位置方向決定方法 | |
JP6391424B2 (ja) | 無線システム及び運行管理サーバ | |
JP2017179967A (ja) | 作業機械の周囲監視システム |
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: 14887579 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14917349 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2923970 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2014388516 Country of ref document: AU Date of ref document: 20141225 Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14887579 Country of ref document: EP Kind code of ref document: A1 |