JP7569716B2 - Information processing device and display method - Google Patents

Description

The present invention relates to an information processing device and a display method.

Conventionally, there is known technology for transmitting data useful for analyzing the cause of a vehicle event, such as a vehicle accident, to an accident analysis center (see, for example, Patent Document 1).

JP 2009-205368 A

Conventional technology leaves room for improvement in the way data received by the accident analysis center is displayed. For example, there is room for improvement in the confirmation process for vehicle events.

The present invention has been made in consideration of the above, and aims to provide an information processing device and display method that improves the efficiency of checking vehicle events.

An information processing device according to one aspect of the embodiment includes an acquisition unit and an instruction unit. The acquisition unit acquires data related to a vehicle event. The instruction unit, based on the data, causes an occurrence element of the event to be displayed on a map displayed on the display unit in a different display form according to the state of the occurrence element.

According to one aspect of the embodiment, the process of checking vehicle events can be made more efficient.

FIG. 1 is a block diagram illustrating an example of the configuration of an information processing system according to an embodiment. FIG. 2 is a block diagram illustrating an example of the configuration of the information processing device according to the embodiment. FIG. 3 is an example of a display screen in the signal display form of the first display mode. FIG. 4 is an example of a display screen in the speed display form of the first display mode. FIG. 5 is an example of a display screen in the brake operation display form of the first display mode. FIG. 6 is an example of a display screen in the second display mode. FIG. 7 is a flowchart illustrating the data display process according to the embodiment.

(Configuration of Information Processing System)
Hereinafter, an information processing device and a display method according to an embodiment will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiment.

First, an information processing system 1 according to an embodiment will be described with reference to FIG. 1. FIG. 1 is a block diagram showing an example of the configuration of the information processing system 1 according to an embodiment.

The information processing system 1 includes a data collection device 2 and an information processing device 3. The data collection device 2 and the information processing device 3 are communicatively connected via a communication network N such as the Internet. In the information processing system 1, a plurality of data collection devices 2 are communicatively connected to the information processing device 3.

The data collection device 2 is, for example, an in-vehicle device. The in-vehicle device is, for example, a drive recorder. Here, we will explain the case where the data collection device 2 is a drive recorder 2 as an example.

The drive recorder 2 includes an on-board camera (not shown). The on-board camera includes, for example, a lens and an imaging element. The imaging element is a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The on-board camera is provided in a position where it can capture images of the front, rear, left and right sides of the vehicle, for example. Multiple on-board cameras may be provided. The on-board camera captures images of the surroundings of the vehicle. The on-board camera acquires images of the surroundings of the vehicle. The images are moving images.

The drive recorder 2 collects data related to vehicle events. Data related to vehicle events includes at least one of data related to vehicle accidents and data related to dangerous driving.

Vehicle accidents include collisions between your vehicle and another vehicle, self-damage accidents involving your vehicle, and collisions between your vehicle and a person.

Dangerous driving is driving that does not result in a vehicle accident, but may lead to a vehicle accident. For example, dangerous driving includes sudden braking and sudden steering.

Data related to a vehicle event includes data that is a triggering factor for a vehicle event. A triggering factor for a vehicle event is a factor that can be a cause of the event when a vehicle event occurs. Examples of triggering factors for a vehicle event include the color of a traffic light, the speed state of the vehicle, and the braking state of the vehicle. Note that triggering factors for a vehicle event include at least one of the color of a traffic light, the speed state of the vehicle, and the braking state of the vehicle.

The drive recorder 2 identifies traffic lights and further identifies the color of the lights of the identified traffic lights by, for example, performing a predetermined image processing based on image data obtained by capturing images using an in-vehicle camera.

The drive recorder 2 acquires the vehicle speed from a vehicle speed sensor (not shown) via CAN communication, for example. Based on the acquired vehicle speed, the drive recorder 2 determines whether the vehicle is complying with the legal speed limit. That is, the drive recorder 2 determines whether the vehicle's speed state is below the legal speed limit, i.e., in compliance, or is greater than the legal speed limit, i.e., in violation. The drive recorder 2 acquires the legal speed limit of the road on which the vehicle is traveling based on the vehicle's position information, and determines whether the vehicle is complying with the legal speed limit. The vehicle's position information is received, for example, from a GPS (Global Positioning System) device. The legal speed limit of the road is stored, for example, in association with map information.

The drive recorder 2 acquires a signal related to the brake operation state from a brake sensor (not shown) by, for example, CAN communication. The brake operation state includes an operation state in which the brake pedal is depressed and a non-operation state in which the brake pedal is not depressed. For example, if the amount of depression of the brake pedal is greater than a predetermined depression amount that is set in advance, the brake operation state is determined to be an operation state. If the amount of depression of the brake pedal is equal to or less than the predetermined depression amount, the brake operation state is determined to be a non-operation state.

The drive recorder 2 stores data related to vehicle events in association with the date and time when the data was acquired. The drive recorder 2 stores data related to vehicle events for a specified storage time. The specified storage time is a pre-set time, for example, 10 seconds. When the drive recorder 2 acquires data related to new vehicle events, it sequentially erases data related to old vehicle events and updates the data related to vehicle events for the specified storage time.

The drive recorder 2 also stores the vehicle environmental data and the vehicle driving data in association with the date and time when the data was acquired. The drive recorder 2 stores the vehicle environmental data for a specified storage time and the vehicle driving data for a specified storage time. The drive recorder 2 updates the vehicle environmental data and the vehicle driving data as well as data related to vehicle events.

The vehicle environmental data includes weather information and brightness information around the vehicle. The drive recorder 2 acquires weather information, for example, from an external information server (not shown). The drive recorder 2 also acquires brightness information around the vehicle from an illuminance sensor (not shown) via CAN communication, for example. The vehicle environmental data may also include temperature.

The vehicle driving data includes the lighting state of the vehicle's headlights (not shown), vehicle speed information, vehicle acceleration information, and vehicle position information. The drive recorder 2 acquires a signal related to the lighting state of the headlights from a sensor that detects the lighting state of the headlights via, for example, CAN communication. The drive recorder 2 acquires a signal related to the acceleration of the vehicle from an acceleration sensor (not shown) via, for example, CAN communication.

When a predetermined transmission condition is met, the drive recorder 2 transmits data related to vehicle events for a predetermined storage time, vehicle environmental data for a predetermined storage time, and vehicle driving data for a predetermined storage time to the information processing device 3 via the communication network N. The drive recorder 2 includes a communication device (not shown) for transmitting data related to vehicle events, etc. to the information processing device 3. When a predetermined transmission condition is met, the drive recorder 2 transmits data related to vehicle events for a predetermined storage time before and after the time when the predetermined transmission condition is met, etc. to the information processing device 3.

Specifically, when a predetermined transmission condition is met, the drive recorder 2 transmits to the information processing device 3 data relating to vehicle events for a predetermined storage time, vehicle environmental data for a predetermined storage time, vehicle driving data for a predetermined storage time, the date and time when each data was acquired, and image data for a predetermined storage time, linked to a device ID assigned to the drive recorder 2. The device ID is identification information that identifies the drive recorder 2. The device ID may be linked to information about the vehicle in which the drive recorder 2 is installed, information about the owner of the vehicle, etc.

The specified transmission condition is a condition that can determine that an event has occurred in the vehicle. When the acceleration of the vehicle reaches or exceeds a preset specified acceleration, the drive recorder 2 determines that a vehicle accident has occurred and that the specified transmission condition is met.

In addition, if the increase in brake pedal depression per unit time is equal to or greater than a preset predetermined increase, the drive recorder 2 determines that a sudden brake operation has occurred and that dangerous driving has occurred. The increase in brake pedal depression is calculated based on a signal obtained from a brake pedal sensor.

When the amount of steering wheel operation per unit time is equal to or greater than a predetermined amount of operation, the drive recorder 2 determines that the steering wheel has been suddenly operated and dangerous driving has occurred. The amount of steering wheel operation is detected, for example, by a steering angle sensor (not shown). Note that the drive recorder 2 may also determine that the steering wheel has been suddenly operated and dangerous driving has occurred when the vehicle speed is equal to or greater than a predetermined vehicle speed and the amount of steering wheel operation per unit time is equal to or greater than a predetermined amount of operation.

(Configuration of information processing device)
Next, the information processing device 3 will be described with reference to Fig. 2. Fig. 2 is a block diagram showing an example of the configuration of the information processing device 3 according to the embodiment.

The information processing device 3 is, for example, a server provided for analyzing the cause of an accident. The information processing device 3 displays the analysis results on a display device 4 (display unit). The information processing device 3 is connected to the display device 4 wirelessly or by wire. The display device 4 is, for example, a monitor. The display device 4 may also be a terminal device such as a smartphone.

The information processing device 3 includes a communication unit 10, a control unit 11, and a memory unit 12.

The communication unit 10 is realized, for example, by a NIC. The communication unit 10 receives data related to vehicle events from the drive recorder 2 via the communication network N.

The storage unit 12 corresponds to a RAM (Random Access Memory) or a flash memory. The RAM or flash memory stores information about various programs, data related to vehicle events received by the communication unit 10, and the like.

The control unit 11 includes an acquisition unit 20, a setting unit 21, a generation unit 22, and an instruction unit 23. The control unit 11 includes, for example, a computer having a CPU (Central Processing Unit), ROM (Read Only Memory), RAM, a hard disk drive, input/output ports, etc., and various circuits.

The computer's CPU functions as the acquisition unit 20, setting unit 21, generation unit 22, and instruction unit 23 of the control unit 11, for example, by reading and executing a program stored in a storage device such as a ROM.

In addition, at least some or all of the acquisition unit 20, setting unit 21, generation unit 22, and instruction unit 23 of the control unit 11 can be configured with hardware such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). In addition, the acquisition unit 20, setting unit 21, generation unit 22, and instruction unit 23 may be integrated or further divided into multiple units.

The acquisition unit 20 acquires data related to vehicle events and the like via the communication unit 10. The acquisition unit 20 accepts input results from an operator via a keyboard or the like. The operator is, for example, a person who performs analysis of vehicle events using the information processing device 3.

Specifically, the acquisition unit 20 acquires input related to the vehicle to be analyzed. The acquisition unit 20 accepts, for example, an input result related to the device ID of the vehicle to be analyzed. The input result may be information about the vehicle linked to the device ID, information about the owner, and the like. When there are multiple vehicles to be analyzed, the acquisition unit 20 may accept input results related to multiple vehicles. The acquisition unit 20 also accepts input results related to a display mode, which will be described later.

The setting unit 21 sets the display mode to be displayed on the display device 4 to the first display mode or the second display mode based on the input result. The setting unit 21 sets the display mode to the first display mode or the second display mode based on the input result regarding the display mode selected by the worker.

The first display mode is a mode in which the occurrence elements of a vehicle event are displayed on a map. The second display mode is a mode in which the occurrence elements of an event are displayed in a graph on the display device 4 in chronological order. The display mode can be changed between the first display mode and the second display mode.

The first display mode also includes a display mode for each occurrence element of a vehicle event. Specifically, the first display mode includes a traffic light display mode, a speed display mode, and a brake operation display mode. The traffic light display mode is a display mode that shows the color of the traffic light. The speed display mode is a display mode that shows the speed state. The brake operation display mode is a display mode that shows the operation state of the brake pedal.

When the display mode is the first display mode, the setting unit 21 further sets the display mode to one of the signal display mode, the speed display mode, and the brake operation display mode based on the input result regarding the display mode selected by the operator.

When the display mode is the first display mode, the setting unit 21 may set multiple display modes from among the signal display mode, the speed display mode, and the brake operation display mode based on the input result regarding the display mode selected by the worker. In other words, the setting unit 21 can simultaneously set multiple display modes from among the signal display mode, the speed display mode, and the brake operation display mode according to the selection of the worker. In this case, the display device 4 displays in multiple display modes.

The generation unit 22 generates display data to be displayed on the display device 4 based on the input result. The display data is data that is displayed as an image on the display device 4. The display data includes data related to the event of the vehicle to be analyzed, etc. Based on the input result, the generation unit 22 reads out data related to the event of the vehicle to be analyzed from the storage unit 12. When there are multiple vehicles to be analyzed, the generation unit 22 reads out data related to the events of each vehicle to be analyzed from the storage unit 12. The generation unit 22 generates display data for the first display mode and display data for the second display mode for the event of the vehicle to be analyzed.

For example, the display data includes data for displaying a map image including the location where the vehicle event occurred, data for displaying a camera image including the time when the vehicle event occurred, and data for displaying the time when the vehicle event occurred.

The display data also includes data that displays the weather when a vehicle event occurs, data that displays the lighting status of the vehicle being analyzed, and data that displays the brightness around the vehicle being analyzed.

The display data for the first display mode includes data for displaying the selected state of the traffic light display mode, the speed display mode, and the brake operation display mode. The display data for the first display mode includes data for showing the state of the occurrence element of a vehicle event on the map in different display forms according to the state of the occurrence element.

The display data for the second display mode includes data that displays the status of occurrence elements of vehicle events in a graph along the timeline of the occurrence elements.

The instruction unit 23 transmits display data corresponding to the display mode set by the setting unit 21 to the display device 4, and causes the display device 4 to display the display data.

Specifically, when the display mode is the first display mode, the instruction unit 23 displays the occurrence elements of the vehicle event on the map in different display forms according to the state of the occurrence elements of the vehicle event.

When the display mode is the second display mode, the instruction unit 23 also displays the occurrence elements of the vehicle event in a graph in chronological order so that the occurrence elements of the vehicle event are displayed in different forms according to the state of the occurrence elements of the vehicle event.

(Display image)
Next, the display image 100 displayed on the display device 4 based on the display data will be described with reference to Figs. 3 to 6. Fig. 3 is an example of the display image 100 in the signal display form of the first display mode. Fig. 4 is an example of the display image 100 in the speed display form of the first display mode. Fig. 5 is an example of the display image 100 in the brake operation display form of the first display mode. Fig. 6 is an example of the display image 100 in the second display form.

The display image 100 displayed on the display device 4 based on the display data includes a map 30 of the location where the vehicle event occurred, video 31 captured by the drive recorder 2 and recording the vehicle event, and the date and time 32 when the vehicle event occurred. The display image 100 displayed on the display device 4 based on the display data also includes the weather 33 when the vehicle event occurred, the lighting state 34 of the vehicle being analyzed, and the brightness 35 around the vehicle being analyzed. By displaying the weather 33 when the vehicle event occurred and the like on the display image 100 of the display device 4, the worker can more accurately know the occurrence status of the vehicle event.

When multiple vehicles are being analyzed, the vehicle lighting status 34 displays the lighting status of the selected vehicle. In Figure 3 and other figures, the selected vehicle is shown in black.

The display image 100 based on the display data of the first display mode also includes a selection state 40 of a traffic light display mode, a speed display mode, and a brake operation display mode. The display image 100 based on the display data of the first display mode also includes an occurrence element of a vehicle event. The occurrence element of a vehicle event in the first display mode is displayed on the map in a different display form according to the state of the occurrence element.

When the first display mode is the traffic light display mode, as shown in FIG. 3, lines 50a, 50b indicating the color of traffic lights related to a vehicle event are displayed on the map in a display mode that differs for each color of traffic light. The lines 50a, 50b indicating the color of traffic lights are displayed on the map in association with the color of the traffic light and the position of the vehicle.

The lines 50a, 50b indicating the color of the traffic light are displayed in different types according to the color of the traffic light. The lines 50a, 50b indicating the color of the traffic light are displayed, for example, in different types of lines according to the color of the traffic light. Note that the lines 50a, 50b indicating the color of the traffic light may be displayed in different colors and thicknesses according to the color of the traffic light.

When the first display mode is the speed display mode, as shown in FIG. 4, lines 51a, 51b indicating the vehicle speed state related to the vehicle event are displayed on the map in different display modes according to the speed state. Lines 51a, 51b indicating the vehicle speed state are displayed on the map in association with the vehicle speed state and the vehicle position.

The lines 51a, 51b indicating the speed state of the vehicle are displayed distinguished depending on whether the speed state of the vehicle is in compliance or violation. The lines 51a, 51b indicating the speed state of the vehicle are displayed, for example, by different types of lines depending on the speed state of the vehicle. Note that the lines 51a, 51b indicating the speed state of the vehicle may be displayed distinguished by the color and thickness of the line depending on the speed state of the vehicle.

When the first display mode is the brake operation display mode, as shown in FIG. 5, lines 52a, 52b indicating the vehicle's brake operation state related to the vehicle event are displayed on the map in a display form that differs depending on the brake operation state. The lines 52a, 52b indicating the vehicle's brake operation state are displayed by lines that associate the vehicle's brake operation state with the vehicle's position.

The lines 52a, 52b indicating the vehicle's brake operation state are displayed differently depending on whether the vehicle's brake operation state is in an operated state or in an unoperated state. The lines 52a, 52b indicating the vehicle's brake operation state are displayed, for example, by different types of lines depending on the vehicle's brake operation state. Note that the lines 52a, 52b indicating the vehicle's brake operation state may be displayed differently depending on the vehicle's brake operation state, for example, by line color and line thickness.

The display image 100 based on the display data in the second display mode includes a graph in which at least a portion of the vehicle's driving data is displayed in chronological order. The display image 100 based on the display data in the second display mode also includes a graph in which occurrence elements of vehicle events are displayed in chronological order in different display forms depending on the state of the occurrence elements.

For example, as shown in FIG. 6, the changes in the vehicle speed and acceleration (G value) associated with the vehicle event are displayed in a graph over time. Note that FIG. 6 shows a diagram in which only the changes in the speed and acceleration of a selected vehicle out of multiple vehicles are displayed in a graph, but this is not limited to this, and the changes in the speed and acceleration of unselected vehicles may also be displayed in a graph. Also, either one of the changes in the vehicle speed and acceleration associated with the vehicle event may be displayed in a graph over time. In other words, it is sufficient that at least one of the changes in the vehicle speed and acceleration associated with the vehicle event is displayed in a graph over time.

The colors of traffic lights related to vehicle events are also displayed in a graph in different display formats along a timeline. The graph display of the traffic light colors is displayed with different types of lines that correspond to the colors of the traffic light. Note that the graph display may be displayed with different colors and thicknesses of lines that correspond to the colors of the traffic light.

In addition, the vehicle speed state related to the vehicle events is displayed in a graph in different display forms along a timeline. The vehicle speed state is displayed with different types of lines depending on whether it is in compliance or non-compliance. The vehicle speed state may be displayed with different line colors and line thicknesses depending on whether it is in compliance or non-compliance.

In addition, the vehicle's brake operation state related to the vehicle event is displayed in a graph in different display forms along a timeline. The vehicle's brake operation state is displayed with different types of lines distinguishing whether it is an operation state or a non-operation state. The brake operation state may be displayed with different line colors and line thicknesses distinguishing whether it is an operation state or a non-operation state.

(Data display processing)
Next, the data display process according to the embodiment will be described with reference to the flowchart of Fig. 7. Fig. 7 is a flowchart for explaining the data display process according to the embodiment.

The information processing device 3 acquires input related to the vehicle to be analyzed (S100). The information processing device 3 sets the display mode based on the acquired input result (S101). Specifically, the information processing device 3 sets the display mode to the first display mode or the second display mode based on the input result.

The information processing device 3 generates display data (S102). Specifically, the information processing device 3 reads data related to the event of the vehicle to be analyzed from the storage unit 12 based on the input result, and generates the display data.

The information processing device 3 transmits the generated display data to the display device 4 (S103). As a result, an image based on the display data is displayed on the display device 4.

The information processing device 3 may generate display data for the first display mode and display data for the second display mode, and may be able to switch the display mode between the first display mode and the second display mode as appropriate in response to an input from an operator. For example, the information processing device 3 generates display data for the first display mode and display data for the second display mode for the vehicle to be analyzed. Then, the information processing device 3 may switch the image displayed on the display device 4 according to the display mode in response to an operation to switch the display mode by an operator.

(Effects of the embodiment)
Next, effects of the information processing device 3 according to the embodiment will be described.

The information processing device 3 includes an acquisition unit 20 and an instruction unit 23. The acquisition unit 20 acquires data related to vehicle events. When the display mode is the first display mode, the instruction unit 23 displays the occurrence elements of the vehicle events on the map displayed on the display device 4 in different display forms according to the state of the occurrence elements of the events based on the data related to the vehicle events.

This allows the worker to check the occurrence factors of vehicle events on the map displayed on the display device 4, and to easily check the occurrence status of vehicle events. In other words, the information processing device 3 can make the work of checking the occurrence status of vehicle events more efficient.

When the display mode is the first display mode, the information processing device 3 displays the color of the traffic light related to the vehicle event on the map displayed on the display device 4.

This allows the worker to easily check on the map the color of the traffic light when a vehicle event occurs. Therefore, the information processing device 3 can make the task of checking the occurrence status of vehicle events more efficient.

When the display mode is the first display mode, the information processing device 3 displays the vehicle speed state related to the vehicle event on the map displayed on the display device 4. Specifically, the information processing device 3 displays whether the vehicle speed state is in compliance or violation on the map displayed on the display device 4.

This allows the operator to easily check whether the vehicle's speed state is in compliance with or in violation of the vehicle event. Therefore, the information processing device 3 can make the work of checking the occurrence status of vehicle events more efficient.

When the display mode is the first display mode, the information processing device 3 displays the vehicle brake operation state related to the vehicle event on the map displayed on the display device 4. Specifically, the information processing device 3 displays, on the map displayed on the display device 4, whether the vehicle brake operation state is an operated state or a non-operated state.

This allows the worker to easily check whether the vehicle's brake operation state is in an operated state or in an unoperated state in response to a vehicle event. Therefore, the information processing device 3 can make the work of checking the occurrence status of a vehicle event more efficient.

The information processing device 3 includes an acquisition unit 20 and an instruction unit 23. The acquisition unit 20 acquires data related to vehicle events. When the display mode is the second display mode, the instruction unit 23 causes the display device 4 to display, in a graph, the occurrence elements of the vehicle events in a time series in different display forms according to the state of the occurrence elements of the events, based on the data related to the vehicle events.

This allows the worker to check the occurrence factors of vehicle events using a graph that follows a time series, and to easily check the occurrence status of vehicle events in a time series. In other words, the information processing device 3 can make the work of checking the occurrence status of vehicle events more efficient.

When the display mode is the second display mode, the information processing device 3 causes the display device 4 to display a graph of the color of the traffic light related to the vehicle event.

This allows the worker to easily check the color of the traffic light in chronological order when a vehicle event occurs. Therefore, the information processing device 3 can make the task of checking the occurrence status of vehicle events more efficient.

When the display mode is the second display mode, the information processing device 3 displays a graph of the vehicle speed state related to the vehicle event. Specifically, the information processing device 3 displays whether the vehicle speed state is in compliance or violation in chronological order.

This allows the worker to easily check the vehicle speed information in chronological order when a vehicle event occurs. Therefore, the information processing device 3 can make the task of checking the occurrence status of vehicle events more efficient.

When the display mode is the second display mode, the information processing device 3 displays a graph of the vehicle's brake operation state related to the vehicle event. Specifically, the information processing device 3 displays, on the map displayed on the display device 4, whether the vehicle's brake operation state is an operated state or a non-operated state.

This allows the worker to easily check the vehicle's brake operation information in chronological order when a vehicle event occurs. Therefore, the information processing device 3 can make the task of checking the occurrence status of vehicle events more efficient.

The information processing device 3 displays the occurrence factors of a vehicle event in a graph together with a time series graph of at least one of the vehicle speed and the vehicle acceleration.

This allows the worker to compare the vehicle speed and acceleration with the occurrence factors of the vehicle event in a chronological order. Therefore, the worker can easily check the occurrence factors of the vehicle event in a chronological order with respect to at least one of the vehicle speed and acceleration of the vehicle.

(Modification)
The information processing device 3 according to the modified example may simultaneously perform display based on the display data in the first display mode and the display data in the second display mode on the display device 4. That is, the information processing device 3 according to the modified example may display occurrence elements of a vehicle event on a map displayed on the display device 4, and may also display the occurrence elements of the vehicle event in a graph in chronological order. For example, the information processing device 3 according to the modified example generates display data and transmits the display data to the display device 4 so that the map 30 shown in FIG. 6 is displayed as the map 30 shown in FIG. 3 to FIG. 5.

As a result, the information processing device 3 according to the modified example can improve the efficiency of the task of checking the occurrence status of vehicle events.

The information processing device 3 in the variant may have only one of the first display mode or the second display mode.

The information processing system 1 according to the modified example may estimate data related to an event of another vehicle from an image acquired by the drive recorder 2 of a certain vehicle. For example, the information processing system 1 according to the modified example may calculate the speed of another vehicle from the other vehicle captured in an image acquired by the drive recorder 2 of a certain vehicle, and estimate the speed of the other vehicle. The information processing system 1 according to the modified example may calculate the speed of another vehicle from the other vehicle captured in a curve mirror in an image acquired by the drive recorder 2 of a certain vehicle, and estimate the speed of the other vehicle. Similarly, the information processing system 1 according to the modified example may estimate the color of the traffic light in the traveling direction of the other vehicle.

As a result, the information processing device 3 according to the modified example can display the occurrence elements of an event of another vehicle on the display device 4 even if data related to the event is not acquired from the other vehicle.

In addition, when the information processing device 3 according to the modified example estimates data related to an event of another vehicle, the estimated occurrence element of the event of the other vehicle may be displayed on the display device 4 in a manner distinct from the occurrence element when actually obtained from the drive recorder 2 of the other vehicle. The information processing device 3 according to the modified example may, for example, display the estimated event occurrence element and the actually obtained event occurrence element in different types of display modes.

Thereby, the information processing device 3 according to the modified example can display on the display device 4 the occurrence elements of an estimated event and the occurrence elements of an event that have actually been acquired, with distinction between them. Therefore, the worker can easily distinguish between the occurrence elements of an estimated event and the occurrence elements of an event that have actually been acquired.

In addition, the information processing system 1 according to the modified example may identify the generating element for the color of the traffic light by the information processing device 3. Specifically, the information processing device 3 according to the modified example identifies the traffic light by performing a predetermined image processing on the image data transmitted from the drive recorder 2, and further identifies the color of the light of the identified traffic light.

As a result, the information processing system 1 according to the modified example can reduce the processing load on the drive recorder 2.

The information processing system 1 according to the modified example may also include a fixed camera as the data collection device 2. The fixed camera captures a predetermined shooting range. The fixed camera is installed, for example, at a street lamp or on the side of the road. The fixed camera includes, for example, a lens and an imaging element such as a CCD or CMOS. The fixed camera transmits the location of the fixed camera and the captured image to the information processing device 3 via the communication network N. The information processing device 3 according to the modified example acquires the occurrence elements of a vehicle event from the image captured by the fixed camera.

This allows the information processing device 3 according to the modified example to collect a large amount of information about vehicle events. This allows the worker to know the status of the vehicle event more accurately.

The above embodiments and variations may be applied in combination.

Further advantages and modifications may readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and equivalents thereof.

1 Information processing system 2 Data collection device (drive recorder)
3 Information processing device 4 Display device (display unit)
10 Communication unit 11 Control unit 12 Storage unit 20 Acquisition unit 22 Generation unit 23 Instruction unit 30 Map 100 Display image

Claims (4)

a control unit that acquires and displays data related to a vehicle event;
The control unit displays a point where the event of the vehicle occurred and a travel path of the vehicle on a map image including the point where the event of the vehicle occurred , and
and an information processing device that displays the travel trajectory in chronological order using different types of lines corresponding to the colors of traffic lights obtained from images captured by a camera mounted on the vehicle. The control unit is
acquiring data from a plurality of vehicles related to the vehicle event, and displaying on the map image a location where the vehicle event occurred and travel paths of the plurality of vehicles;
The information processing device according to claim 1 , wherein the travel trajectories of the plurality of vehicles are displayed in chronological order with different types of lines corresponding to colors of traffic lights determined from images captured by cameras of the plurality of vehicles. The information processing device according to claim 1 , wherein the different types of lines are arrows indicating a traveling direction of a vehicle. A display method by an information processing device, comprising:
obtaining and displaying data relating to a vehicle event;
The display step displays the point where the event occurred and the travel path of the vehicle on a map image including the point where the event occurred , and
A display method for displaying the travel trajectory in chronological order using different types of lines corresponding to the colors of traffic lights determined from images captured by a camera mounted on the vehicle.

Images