Information processing apparatus, information processing method, and program

Abstract

To provide an information processing device, an information processing method, and a program capable of efficiently performing confirmation work for an event of a vehicle.SOLUTION: An information processing device according to an embodiment is an information processing device that displays a situation of an accident related to a host vehicle, and includes a control unit. The control unit displays, on the display unit, a map showing an accident occurrence point, a travel trajectory of the host vehicle, and a position of another vehicle that is an accident partner, creates graphs showing changes in acceleration and speed of the host vehicle along a time series based on acceleration information and speed information acquired from the host vehicle, is capable of displaying, on the display unit, a graph selected by a user from the graphs of the acceleration and the speed, and displays, on the display unit, a plurality of graphs aligned in a time series when the user selects the plurality of graphs.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to an information processing device, an information processing method, and a program. [Background technology]

[0002] BACKGROUND ART Conventionally, there is known a technique for transmitting data that is effective for analyzing the cause of a vehicle event, such as a vehicle accident, to an accident analysis center (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-205368 Summary of the Invention [Problem to be solved by the invention]

[0004] The prior art leaves room for improvement in the way data received by the accident analysis center is displayed, for example, in the confirmation of vehicle events.

[0005] The present invention has been made in view of the above, and an object of the present invention is to provide an information processing device, an information processing method, and a program that improve the efficiency of checking vehicle events. [Means for solving the problem]

[0006] According to one aspect of the embodiment, an information processing device is an information processing device that displays the status of an accident involving a vehicle, and includes a control unit. The control unit displays a map on a display unit that shows the location of the accident, the driving trajectory of the vehicle, and the location of another vehicle involved in the accident. The control unit creates graphs that show changes in acceleration and speed of the vehicle over time based on acceleration information and speed information acquired from the vehicle, and is capable of displaying a graph of acceleration and speed selected by a user on the display unit. When multiple graphs are selected by the user, the control unit displays the multiple graphs in an aligned timeline on the display unit. [Effects of the Invention]

[0007] According to one aspect of the embodiment, the efficiency of checking vehicle events can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram showing an example of the configuration of an information processing system according to an embodiment. [Figure 2] FIG. 2 is a block diagram illustrating an example of the configuration of the information processing device according to the embodiment. [Figure 3] FIG. 3 shows an example of a display screen in the signal display form of the first display mode. [Figure 4] FIG. 4 is an example of a display screen in the speed display form of the first display mode. [Figure 5] FIG. 5 shows an example of a display screen in the brake operation display form of the first display mode. [Figure 6] FIG. 6 is an example of a display screen in the second display mode. [Figure 7] FIG. 7 is a flowchart illustrating the data display process according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Configuration of information processing system) Hereinafter, an information processing device, an information processing method, and a program 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 present embodiment.

[0010] First, an information processing system 1 according to the 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 the embodiment.

[0011] 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 communicably connected via a communication network N such as the Internet. In the information processing system 1, a plurality of data collection devices 2 are communicably connected to the information processing device 3.

[0012] The data collection device 2 is, for example, an in-vehicle device. The in-vehicle device is, for example, a drive recorder. Here, a case where the data collection device 2 is a drive recorder 2 will be described as an example.

[0013] 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 installed in a position where it can capture images of the front, rear, left and right sides of the vehicle. Multiple on-board cameras may be installed. 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.

[0014] The drive recorder 2 collects data related to vehicle events, which includes at least one of data related to vehicle accidents and data related to reckless driving.

[0015] Vehicle accidents include collisions between the vehicle and another vehicle, collisions involving the vehicle itself, and collisions between the vehicle and a person.

[0016] 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.

[0017] The data related to a vehicle event includes data that may be factors that cause a vehicle event. Factors that cause a vehicle event are factors that may cause the event to occur when a vehicle event occurs. Factors that cause a vehicle event include, for example, the color of a traffic light, the speed of the vehicle, and the brake operation state of the vehicle. Note that the factors that cause a vehicle event include at least one of the color of a traffic light, the speed of the vehicle, and the brake operation state of the vehicle.

[0018] The drive recorder 2 identifies traffic lights and further identifies the color of the lights of the identified traffic lights by, for example, performing predetermined image processing based on image data obtained by capturing images using an in-vehicle camera.

[0019] The drive recorder 2 acquires the vehicle speed from a vehicle speed sensor (not shown) via, for example, CAN communication. 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., complying with the legal speed limit, or whether the vehicle's speed state is higher than the legal speed limit, i.e., violating the legal speed limit. 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 from, for example, a GPS (Global Positioning System) device. The legal speed limit of the road is stored, for example, linked to map information.

[0020] The drive recorder 2 acquires a signal related to the brake operation state from a brake sensor (not shown), for example, via CAN communication. The brake operation state includes an operation state in which the brake pedal is depressed and a no-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, the brake operation state is determined to be an operated 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 no-operation state.

[0021] 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 predetermined storage time. The predetermined storage time is a preset time, for example, 10 seconds. When the drive recorder 2 acquires data related to new vehicle events, it sequentially erases data related to older vehicle events and updates the data related to vehicle events for the predetermined storage time.

[0022] The drive recorder 2 also stores the vehicle environmental data and 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 predetermined storage time and the vehicle driving data for a predetermined storage time. The drive recorder 2 updates the vehicle environmental data and the vehicle driving data as well as data related to vehicle events.

[0023] The vehicle environment data includes weather information and brightness information around the vehicle. The drive recorder 2 acquires weather information from, for example, an external information server (not shown). The drive recorder 2 also acquires brightness information around the vehicle from, for example, an illuminance sensor (not shown) via CAN communication. The vehicle environment data may also include temperature.

[0024] 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.

[0025] 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 and the like 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 to the information processing device 3.

[0026] 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 for identifying 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.

[0027] The predetermined transmission condition is a condition under which it can be determined that an event has occurred in the vehicle. When the acceleration of the vehicle reaches or exceeds a predetermined acceleration, the drive recorder 2 determines that a vehicle accident has occurred and determines that the predetermined transmission condition is met.

[0028] Furthermore, if the increase in brake pedal depression per unit time is equal to or greater than a predetermined increase, the drive recorder 2 determines that a sudden braking 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.

[0029] The drive recorder 2 determines that a sudden steering operation has occurred and dangerous driving has occurred when the amount of steering operation per unit time is equal to or greater than a predetermined amount of operation. The amount of steering operation is detected by, for example, a steering angle sensor (not shown). Note that the drive recorder 2 may also determine that a sudden steering operation has occurred and dangerous driving has occurred when the vehicle speed is equal to or greater than a predetermined vehicle speed and the amount of steering operation per unit time is equal to or greater than a predetermined amount of operation.

[0030] (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.

[0031] 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 via a wire. The display device 4 is, for example, a monitor. The display device 4 may also be a terminal device such as a smartphone.

[0032] The information processing device 3 includes a communication unit 10, a control unit 11, and a storage unit 12.

[0033] The communication unit 10 is realized by, for example, an NIC etc. The communication unit 10 receives data relating to vehicle events from the drive recorder 2 via the communication network N.

[0034] The storage unit 12 corresponds to a RAM (Random Access Memory) or a flash memory. The RAM or the flash memory stores information about various programs, data related to vehicle events received by the communication unit 10, and the like.

[0035] 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), a ROM (Read Only Memory), a RAM, a hard disk drive, an input / output port, and various other circuits.

[0036] The CPU of the computer functions as the acquisition unit 20, setting unit 21, generation unit 22, and instruction unit 23 of the control unit 11 by reading and executing a program stored in a storage device such as a ROM.

[0037] Furthermore, at least a part 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). Furthermore, the acquisition unit 20, setting unit 21, generation unit 22, and instruction unit 23 may be integrated or further divided into multiple units.

[0038] 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.

[0039] Specifically, the acquisition unit 20 acquires input related to the vehicle to be analyzed. The acquisition unit 20 receives, 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, etc. If there are multiple vehicles to be analyzed, the acquisition unit 20 may receive input results related to multiple vehicles. The acquisition unit 20 also receives input results related to a display mode, which will be described later.

[0040] Based on the input result, 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 regarding the display mode selected by the worker, the setting unit 21 sets the display mode to the first display mode or the second display mode.

[0041] The first display mode is a mode in which occurrence factors of vehicle events are displayed on a map. The second display mode is a mode in which occurrence factors of events are displayed in chronological order as a graph on the display device 4. The display mode can be changed between the first display mode and the second display mode.

[0042] 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 displays the color of the traffic light. The speed display mode is a display mode that displays the speed state. The brake operation display mode is a display mode that displays the operation state of the brake pedal.

[0043] When the display mode is the first display mode, the setting unit 21 further sets the display mode to one of a signal display mode, a speed display mode, and a brake operation display mode based on the input result regarding the display mode selected by the worker.

[0044] 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. That is, 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 in accordance with the selection by the worker. In this case, the display device 4 displays in multiple display modes.

[0045] The generation unit 22 generates display data to be displayed on the display device 4 based on the input results. The display data is data that is displayed as an image on the display device 4. The display data includes data related to events of the vehicle to be analyzed, etc. The generation unit 22 reads data related to events of the vehicle to be analyzed from the storage unit 12 based on the input results. If there are multiple vehicles to be analyzed, the generation unit 22 reads data related to 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 events of the vehicle to be analyzed.

[0046] 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.

[0047] The display data also includes data for displaying the weather when a vehicle event occurs, data for displaying the lighting status of the vehicle being analyzed, and data for displaying the brightness around the vehicle being analyzed.

[0048] The display data for the first display mode includes data for displaying the selected status of a traffic light display mode, a speed display mode, and a brake operation display mode. The display data for the first display mode includes data for displaying the status of occurrence factors of vehicle events on a map in different display forms according to the status of the occurrence factors.

[0049] The display data in the second display mode includes data for displaying the states of occurrence factors of vehicle events in a graph along the time series of the occurrence factors.

[0050] The instruction unit 23 transmits display data according 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.

[0051] Specifically, when the display mode is the first display mode, the instruction unit 23 displays the occurrence element of the vehicle event on the map in a different display form depending on the state of the occurrence element of the vehicle event.

[0052] Furthermore, when the display mode is the second display mode, the instruction unit 23 displays the occurrence elements of the vehicle event in a graph in chronological order in a different display form according to the state of the occurrence elements of the vehicle event.

[0053] (Image displayed) 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.

[0054] 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 of the vehicle event captured by the drive recorder 2 and recorded, 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 weather 33 when the vehicle event occurred, the lighting status 34 of the vehicle being analyzed, and 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 circumstances under which the vehicle event occurred.

[0055] If there are multiple vehicles to be analyzed, the lighting status of the selected vehicle is displayed as vehicle lighting status 34. In Fig. 3 and other figures, the selected vehicle is shown in black.

[0056] Furthermore, the display image 100 based on the display data of the first display mode 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 occurrence elements of vehicle events. The occurrence elements of vehicle events in the first display mode are displayed on the map in different display forms according to the state of the occurrence elements.

[0057] When the first display mode is the traffic light display mode, lines 50a and 50b indicating the color of traffic lights related to a vehicle event are displayed on the map in a display manner that differs for each color of traffic light, as shown in Fig. 3. The lines 50a and 50b indicating the color of traffic light are displayed on the map in association with the color of the traffic light and the position of the vehicle.

[0058] 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, as 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, thicknesses, etc. according to the color of the traffic light.

[0059] When the first display mode is the speed display mode, lines 51a and 51b indicating the speed state of the vehicle related to the vehicle event are displayed on the map in different display modes depending on the speed state, as shown in Fig. 4. Lines 51a and 51b indicating the speed state of the vehicle are displayed on the map in association with the speed state of the vehicle and the position of the vehicle.

[0060] The lines 51a, 51b indicating the speed state of the vehicle are displayed distinguishably depending on whether the speed state of the vehicle is in compliance with the speed limit or in violation of the speed limit. 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 distinguishably by line color, line thickness, or the like depending on the speed state of the vehicle.

[0061] When the first display mode is the brake operation display mode, lines 52a and 52b indicating the vehicle's brake operation state related to a vehicle event are displayed on the map in different display forms depending on the brake operation state, as shown in Fig. 5. The lines 52a and 52b indicating the vehicle's brake operation state are displayed as lines that associate the vehicle's brake operation state with the vehicle's position.

[0062] The lines 52a, 52b indicating the vehicle's brake operation state are displayed in a differentiated manner 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 in a differentiated manner using line colors, line thicknesses, etc. depending on the vehicle's brake operation state.

[0063] 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, and 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.

[0064] For example, as shown in Fig. 6, changes in vehicle speed and acceleration (G-value) related to a vehicle event are displayed in a graph over time. Note that Fig. 6 shows a diagram in which only changes in speed and acceleration of a selected vehicle among multiple vehicles are displayed in a graph, but this is not limited to this, and changes in speed and acceleration of unselected vehicles may also be displayed in a graph. Furthermore, either one of changes in speed and acceleration of a vehicle related to a vehicle event may be displayed in a graph over time. In other words, it is sufficient that at least one of changes in speed and acceleration of a vehicle related to a vehicle event is displayed in a graph over time.

[0065] In addition, the colors of traffic light signals related to vehicle events are displayed in different time series in a graph. The graph display of traffic light colors is distinguished by different types of lines corresponding to the colors of the traffic light signals. Note that the graph display may be distinguished by the color and thickness of the lines corresponding to the colors of the traffic light signals.

[0066] Furthermore, the vehicle speed status related to the vehicle event is displayed in a graph in different display forms along a timeline. The vehicle speed status is displayed with different types of lines distinguishing whether it is in compliance or noncompliance. The vehicle speed status may be displayed with different line colors, line thicknesses, etc. distinguishing whether it is in compliance or noncompliance.

[0067] 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 by using different types of lines to distinguish between an operated state and a non-operated state. The brake operation state may be displayed by using different colors and thicknesses of lines to distinguish between an operated state and a non-operated state.

[0068] (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 illustrating the data display process according to the embodiment.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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 a 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 by an operator to switch the display mode.

[0073] (Effects of the embodiment) Next, the effects of the information processing device 3 according to the embodiment will be described.

[0074] The information processing device 3 includes an acquisition unit 20 and an instruction unit 23. The acquisition unit 20 acquires data related to a vehicle event. When the display mode is the first display mode, the instruction unit 23 displays, on the map displayed on the display device 4, an occurrence element of the vehicle event in a different display form according to the state of the occurrence element of the event, based on the data related to the vehicle event.

[0075] 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 improve the efficiency of the work of checking the occurrence status of vehicle events.

[0076] When the display mode is the first display mode, the information processing device 3 causes the display device 4 to display, on the map, the color of the light of a traffic light related to a vehicle event.

[0077] This allows the worker to easily check on the map the color of the traffic light when a vehicle event occurs, and therefore the information processing device 3 can improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0078] 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 on the map displayed on the display device 4 whether the vehicle speed state is in compliance or violation.

[0079] 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 improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0080] 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.

[0081] This allows the operator to easily check whether the vehicle 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 improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0082] 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 graphically display occurrence elements of the vehicle events in chronological order in different display forms according to the states of the occurrence elements of the events, based on the data related to the vehicle events.

[0083] This allows the operator to check the occurrence factors of vehicle events in a chronological graph, and the occurrence status of vehicle events can be easily checked in chronological order. In other words, the information processing device 3 can improve the efficiency of the work of checking the occurrence status of vehicle events.

[0084] When the display mode is the second display mode, the information processing device 3 causes the display device 4 to graphically display the color of the light of a traffic light related to a vehicle event.

[0085] This allows the worker to easily check the color of the traffic light in chronological order when a vehicle event occurs, and therefore the information processing device 3 can improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0086] 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.

[0087] This allows the worker to easily check the vehicle speed information in chronological order when a vehicle event occurs, and therefore the information processing device 3 can improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0088] When the display mode is the second display mode, the information processing device 3 displays a graph of the vehicle 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 brake operation state is an operated state or a non-operated state.

[0089] This allows the worker to easily check the vehicle brake operation information in chronological order when a vehicle event occurs, and therefore the information processing device 3 can improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0090] The information processing device 3 displays the occurrence factors of the vehicle event in a graph together with a time-series graph of at least one of the vehicle speed and the vehicle acceleration.

[0091] This allows the worker to compare the vehicle speed and acceleration with the occurrence factors of the vehicle event in chronological order, and therefore the worker can easily check the occurrence factors of the vehicle event in chronological order with respect to at least one of the vehicle speed and acceleration.

[0092] (Variation) 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 vehicle events on a map displayed on the display device 4, and may also display the occurrence elements of vehicle events 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 FIGS. 3 to 5.

[0093] As a result, the information processing device 3 according to the modified example can improve the efficiency of the work of checking the occurrence status of a vehicle event.

[0094] The information processing device 3 according to the modified example may have only one of the first display mode and the second display mode as the display mode.

[0095] 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 the certain vehicle, and estimate the speed of the other 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 a curve mirror in an image acquired by the drive recorder 2 of the 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 a traffic light in the traveling direction of the other vehicle.

[0096] As a result, the information processing device 3 according to the modified example can display on the display device 4 the occurrence elements of an event of another vehicle even if data related to the event is not acquired from the other vehicle.

[0097] Furthermore, 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 distinguished from the occurrence element when actually acquired from the drive recorder 2 of the other vehicle. For example, the information processing device 3 according to the modified example may display the estimated occurrence element of the event and the actually acquired event occurrence element in different display modes.

[0098] As a result, the information processing device 3 according to the modified example can distinguish between the estimated occurrence element of an event and the actually acquired occurrence element of an event and display them on the display device 4. Therefore, the worker can easily distinguish between the estimated occurrence element of an event and the actually acquired occurrence element of an event.

[0099] Furthermore, the information processing system 1 according to the modified example may identify the occurrence element for the color of the light of a traffic light by the information processing device 3. Specifically, the information processing device 3 according to the modified example performs predetermined image processing on the image data transmitted from the drive recorder 2 to identify the traffic light and further identify the color of the light of the identified traffic light.

[0100] As a result, the information processing system 1 according to the modified example can reduce the processing load on the drive recorder 2.

[0101] Furthermore, the information processing system 1 according to the modified example may include a fixed camera as the data collection device 2. The fixed camera captures images of a predetermined shooting range. The fixed camera is installed, for example, at a street lamp or on the side of a 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 images to the information processing device 3 via the communication network N. The information processing device 3 according to the modified example acquires occurrence elements of a vehicle event from the images captured by the fixed camera.

[0102] This allows the information processing device 3 according to the modified example to collect a large amount of information about vehicle events, allowing the worker to know the status of the vehicle events more accurately.

[0103] The above-described embodiments and modifications may be applied in combination.

[0104] Further advantages and modifications will 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 their equivalents. [Explanation of symbols]

[0105] 1. Information Processing Systems 2 Data collection device (drive recorder) 3. Information processing equipment 4 Display device (display section) 10. Communications Department 11 Control section 12 Storage section 20 Acquisition Department 22 Generation part 23 Instruction section 30 Map 100 display images

Claims

1. An information processing device that displays the status of an accident involving a vehicle, the information processing device having a control unit, The control unit A map showing the location of the accident, the travel path of the vehicle, and the location of the other vehicle involved in the accident is displayed on a display unit. creating graphs showing changes in acceleration and speed of the host vehicle over time based on acceleration information and speed information acquired from the host vehicle; a graph selected by a user from the graphs of the acceleration and the velocity can be displayed on the display unit, and when a plurality of graphs are selected by the user, the plurality of graphs are displayed on the display unit in an aligned time series; Information processing device.

2. The control unit further creating a graph showing a change in the brake operation state over time based on the brake information acquired from the vehicle; A graph selected by the user from the graphs of the acceleration, the speed, and the brake can be displayed on the display unit, and when a plurality of graphs are selected by the user, the plurality of graphs are displayed on the display unit in an aligned time series. The information processing device according to claim 1 .

3. the control unit displays on the display unit the date and time when the accident occurred, and also displays on the display unit the relationship between the plurality of graphs displayed in chronological order and the time when the accident occurred.

3. The information processing device according to claim 1.

4. the control unit displays the travel path of the other vehicle on the map. The information processing device according to claim 1 .

5. The control unit creating graphs showing changes in acceleration and speed of the other vehicle over time based on the acceleration information and speed information acquired from the other vehicle; a graph selected by the user from the graphs of the acceleration and speed of the other vehicle is displayed on the display unit; The information processing device according to claim 1 .

6. The speed graph is displayed in a different manner depending on whether the speed of the host vehicle is in compliance with the legal speed limit or in violation thereof. The information processing device according to claim 1 .

7. An information processing device that displays the status of an accident involving a vehicle, the information processing device having a control unit, The control unit A map showing the location of the accident, the travel path of the vehicle, and the location of the other vehicle involved in the accident is displayed on a display unit. a graph showing a change in the brake operation state over time based on the brake information acquired from the vehicle, and displaying the graph on the display unit; Information processing device.

8. The control unit displays the date and time when the accident occurred on the display unit, and a relationship between the graph and the time point at which the accident occurred is displayed on the display unit; The information processing device according to claim 7 .

9. An information processing method for displaying the status of an accident related to a vehicle, performed by an information processing device, A map showing the location of the accident, the travel path of the vehicle, and the location of the other vehicle involved in the accident is displayed on a display unit. creating graphs showing changes in acceleration and speed of the host vehicle over time based on acceleration information and speed information acquired from the host vehicle; a graph selected by a user from the graphs of the acceleration and the velocity can be displayed on the display unit, and when a plurality of graphs are selected by the user, the plurality of graphs are displayed on the display unit in an aligned time series; Information processing methods.

10. A program for displaying the status of an accident involving a vehicle, A map showing the location of the accident, the travel path of the vehicle, and the location of the other vehicle involved in the accident is displayed on a display unit. creating graphs showing changes in acceleration and speed of the host vehicle over time based on acceleration information and speed information acquired from the host vehicle; a graph selected by a user from the graphs of the acceleration and the velocity can be displayed on the display unit, and when a plurality of graphs are selected by the user, the plurality of graphs are displayed on the display unit in an aligned time series; A program that causes a computer to execute a process.

Images