On-board terminal device and vehicle collision prevention method
First Claim
1. An on-board terminal device, comprising:
- a GPS that measures a location of an own vehicle or a location measuring sensor that obtains the location of the own vehicle based on the result of measurement of the relative distance to a reference point arranged within a mine;
a transmitter that transmits own vehicle information including location information of the own vehicle to other vehicles and a receiver that receives other vehicle information including location information of the other vehicles transmitted from the other vehicles by execution of wireless communication with the other vehicles; and
a computer, wherein the computer is configured toestimate the location of the other vehicles,calculate relative distances between the own vehicle and the other vehicles when the wireless communication has been interrupted,execute an alarm process for preventing collision of the own vehicle and the other vehicles when the relative distance is less than a predetermined threshold, andnotify an operator of the own vehicle with a notification about the other vehicle, or output a control signal for executing travel control of the own vehicle to the own vehicle,wherein when the computer outputs alarm information including information on a region where the wireless communication is not available in the periphery of the own vehicle in the alarm process, the computer notifies the operator of the own vehicle of the region where the wireless communication is not available based on the alarm information, or outputs the control signal of a case where the other vehicles exist in the region where the wireless communication is not available based on the alarm information, andwherein the computer calculates a reception rate of the wireless communication with respect to a plurality of divided regions set beforehand in the periphery of the own vehicle respectively based on a reception log of the other vehicle information of the past, and determines divided regions where the reception rate of the wireless communication is less than a predetermined reference value out of the plurality of divided regions to be a region where the wireless communication is not available.
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Accused Products
Abstract
An on-board terminal device includes a location measuring section that measures a location of an own vehicle, a wireless communication section that transmits own vehicle information including location information of the own vehicle to other vehicles and receives other vehicle information including location information of the other vehicles from the other vehicles by execution of wireless communication with the other vehicles, and a monitoring section that estimates the location of the other vehicles and calculates a relative distance between the own vehicle and the other vehicles when the wireless communication has been interrupted, and executes an alarm process for preventing collision of the own vehicle and the other vehicles when the relative distance is less than a predetermined threshold.
31 Citations
9 Claims
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1. An on-board terminal device, comprising:
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a GPS that measures a location of an own vehicle or a location measuring sensor that obtains the location of the own vehicle based on the result of measurement of the relative distance to a reference point arranged within a mine; a transmitter that transmits own vehicle information including location information of the own vehicle to other vehicles and a receiver that receives other vehicle information including location information of the other vehicles transmitted from the other vehicles by execution of wireless communication with the other vehicles; and a computer, wherein the computer is configured to estimate the location of the other vehicles, calculate relative distances between the own vehicle and the other vehicles when the wireless communication has been interrupted, execute an alarm process for preventing collision of the own vehicle and the other vehicles when the relative distance is less than a predetermined threshold, and notify an operator of the own vehicle with a notification about the other vehicle, or output a control signal for executing travel control of the own vehicle to the own vehicle, wherein when the computer outputs alarm information including information on a region where the wireless communication is not available in the periphery of the own vehicle in the alarm process, the computer notifies the operator of the own vehicle of the region where the wireless communication is not available based on the alarm information, or outputs the control signal of a case where the other vehicles exist in the region where the wireless communication is not available based on the alarm information, and wherein the computer calculates a reception rate of the wireless communication with respect to a plurality of divided regions set beforehand in the periphery of the own vehicle respectively based on a reception log of the other vehicle information of the past, and determines divided regions where the reception rate of the wireless communication is less than a predetermined reference value out of the plurality of divided regions to be a region where the wireless communication is not available. - View Dependent Claims (2, 3, 4)
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5. A vehicle collision prevention method, comprising the steps of:
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measuring a location of an own vehicle; transmitting own vehicle information including location information of the own vehicle to other vehicles and receiving other vehicle information including location information of the other vehicles from the other vehicles by executing wireless communication with the other vehicles; estimating locations of the other vehicles and calculating a relative distance between the own vehicle and the other vehicles when the wireless communication has been interrupted; and executing an alarm process for preventing collision of the own vehicle and the other vehicles by a computer when the relative distance is less than a predetermined threshold to thereby prevent collision of the own vehicle and the other vehicles, wherein alarm information including information on a region where the wireless communication is not available in the periphery of the own vehicle is outputted from the computer in the alarm process, and an operator of the own vehicle is notified of the region where the wireless communication is not available or, when there exists the other vehicle in the region where the wireless communication is not available, a control signal for executing travel control of the own vehicle is outputted to the own vehicle based on the alarm information. - View Dependent Claims (6, 7, 8, 9)
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Specification