Abstract: This monitoring plan evaluation system includes a vehicle monitoring information acquisition unit which acquires vehicle monitoring information indicating a result of monitoring of a vehicle, the vehicle monitoring information including monitoring execution condition information indicating at least one of a monitoring place and a monitoring time of the vehicle and information of the vehicle that has been subjected to monitoring at the monitoring place or the monitoring time, a movement information acquisition unit which acquires vehicle movement information regarding movement of each of a plurality of vehicles, and a passage extent information generator which generates passage extent information, which indicates an extent of passage of a vehicle that is to be monitored in a condition indicated by a candidate monitoring execution condition including at least one of a place and a time where and when to monitor vehicles, on the basis of the vehicle movement information and the vehicle monitoring information.

Abstract: A navigation system includes: a traffic condition calculation unit (222) that calculates an evaluation value indicating a traffic condition of each road segment included in a target area; a guidance route determination unit (223) that determines a route in which a degree of non-congestion based on the traffic condition evaluation value of a road segment included in a route to a destination of each vehicle is the highest as a guidance route on the basis of the traffic condition evaluation value calculated by the traffic condition calculation unit and the destination of each vehicle; and a guidance route providing unit (224) that provides the guidance routes determined by the guidance route determination unit to a driver of the corresponding vehicle.

Abstract: A vehicle surveillance system includes: a photographing unit configured to photograph a target vehicle; a positional information acquisition unit configured to acquire positional information indicating a position of the photographing unit; a surveillance information generation unit configured to extract a vehicle number from an image acquired by the photographing unit and generate surveillance information on the basis of at least the vehicle number and the positional information; and a surveillance information output unit configured to output the surveillance information generated by the surveillance information generation unit. The photographing unit, the positional information acquiring unit, the surveillance information generation unit, and the surveillance information output unit are installed in a mobile surveillance vehicle.

Abstract: This on-board unit is an on-board unit that is attached to a vehicle, stores information about the vehicle, and performs a process using the information about the vehicle, and includes a state information acquisition unit that acquires state information indicating a state of the on-board unit, a storage unit management unit that stores state information in a storage unit when the on-board unit is powered off, and a fault determination unit that determines whether or not state information acquired when the on-board unit is powered on matches the state information stored in the storage unit, and determines a fault when the fault determination unit determines that the state information acquired when the on-board unit is powered on does not match the state information stored in the storage unit.

Abstract: An onboard system installed in a vehicle that performs traffic processing for the vehicle, the onboard system comprising an onboard unit that communicates with an external device to perform charge processing; and a notification device that outputs a notification signal to an external device according to whether an expected onboard unit is connected or the expected onboard unit is disconnected via a connection unit connectable to the onboard unit.

Abstract: An information presentation system for evaluating a billing location includes a signal output unit mounted on a vehicle and configured to output a signal at a timing at which a billing process has been performed based on a location of the vehicle; a signal acquisition unit installed at a predetermined location and configured to acquire a signal from the signal output unit; and a billing location detection unit configured to detect a location at which the billing process has been performed based on the signal acquired by the signal acquisition unit.

Abstract: A navigation system includes: a traffic condition calculation unit (222) that calculates an evaluation value indicating a traffic condition of each road segment included in a target area; a guidance route determination unit (223) that determines a route in which a degree of non-congestion based on the traffic condition evaluation value of a road segment included in a route to a destination of each vehicle is the highest as a guidance route on the basis of the traffic condition evaluation value calculated by the traffic condition calculation unit and the destination of each vehicle; and a guidance route providing unit (224) that provides the guidance routes determined by the guidance route determination unit to a driver of the corresponding vehicle.

Abstract: This monitoring plan evaluation system includes a vehicle monitoring information acquisition unit which acquires vehicle monitoring information indicating a result of monitoring of a vehicle, the vehicle monitoring information including monitoring execution condition information indicating at least one of a monitoring place and a monitoring time of the vehicle and information of the vehicle that has been subjected to monitoring at the monitoring place or the monitoring time, a movement information acquisition unit which acquires vehicle movement information regarding movement of each of a plurality of vehicles, and a passage extent information generator which generates passage extent information, which indicates an extent of passage of a vehicle that is to be monitored in a condition indicated by a candidate monitoring execution condition including at least one of a place and a time where and when to monitor vehicles, on the basis of the vehicle movement information and the vehicle monitoring information.

Abstract: This on-board unit is an on-board unit that is attached to a vehicle, stores information about the vehicle, and performs a process using the information about the vehicle, and includes a state information acquisition unit that acquires state information indicating a state of the on-board unit, a storage unit management unit that stores state information in a storage unit when the on-board unit is powered off, and a fault determination unit that determines whether or not state information acquired when the on-board unit is powered on matches the state information stored in the storage unit, and determines a fault when the fault determination unit determines that the state information acquired when the on-board unit is powered on does not match the state information stored in the storage unit.

Abstract: A vehicle surveillance system includes: a photographing unit configured to photograph a target vehicle; a positional information acquisition unit configured to acquire positional information indicating a position of the photographing unit; a surveillance information generation unit configured to extract a vehicle number from an image acquired by the photographing unit and generate surveillance information on the basis of at least the vehicle number and the positional information; and a surveillance information output unit configured to output the surveillance information generated by the surveillance information generation unit. The photographing unit, the positional information acquiring unit, the surveillance information generation unit, and the surveillance information output unit are installed in a mobile surveillance vehicle.

Abstract: An onboard system installed in a vehicle that performs traffic processing for the vehicle, the onboard system comprising an onboard unit that communicates with an external device to perform charge processing; and a notification device that outputs a notification signal to an external device according to whether an expected onboard unit is connected or the expected onboard unit is disconnected via a connection unit connectable to the onboard unit.

Abstract: An image recognition device includes an edge direction evaluation unit configured to evaluate a direction of an edge at each coordinate by assigning points to the coordinate when a deviation amount between a direction of an outline of an abundance ratio higher than a predetermined abundance ratio threshold value among directions of an outline of a character available for the vehicle number plate and the direction of the edge at each coordinate of the image is less than a predetermined deviation amount threshold value and a vehicle number plate region extraction unit configured to extract a region of the vehicle number plate from the image based on a distribution of the points assigned by the edge direction evaluation unit.

Abstract: An image recognition device includes an edge direction evaluation unit configured to evaluate a direction of an edge at each coordinate by assigning points to the coordinate when a deviation amount between a direction of an outline of an abundance ratio higher than a predetermined abundance ratio threshold value among directions of an outline of a character available for the vehicle number plate and the direction of the edge at each coordinate of the image is less than a predetermined deviation amount threshold value and a vehicle number plate region extraction unit configured to extract a region of the vehicle number plate from the image based on a distribution of the points assigned by the edge direction evaluation unit.