JP6929152B2 - Operation diagnosis server, operation diagnosis system and operation diagnosis method - Google Patents

Description

The present invention relates to a driving diagnosis server, a driving diagnostic system and a driving diagnostic method.

Conventionally, there is a driving diagnosis server that acquires operation information related to a driver's driving operation from an in-vehicle device mounted on a vehicle and diagnoses the driving skill of the driver based on the operation information (see, for example, Patent Document 1). Such a driving diagnosis server communicates with the in-vehicle device within a predetermined communication capacity.

Japanese Unexamined Patent Publication No. 2014-031050

However, in the prior art, the driving diagnosis server receives a certain amount of operation information regardless of the driving frequency and the driving time, and performs the driving skill diagnosis. Therefore, in the prior art, there is a possibility that the contracted communication capacity may be exceeded, and there is a risk that the driving skill cannot be properly diagnosed.

The present invention has been made in view of the above, and an object of the present invention is to provide a driving diagnosis server, a driving diagnosis system, and a driving diagnosis method capable of appropriately diagnosing driving skills according to available communication capacity. And.

The present invention includes a diagnostic unit, a setting unit, and a receiving unit in the operation diagnostic server. The diagnosis unit diagnoses the driving skill of the driver based on the operation information regarding the driving operation by the driver of the vehicle. The setting unit sets diagnostic items to be diagnosed by the diagnostic unit so as not to exceed a predetermined upper limit of the communication capacity. The receiving unit receives the operation information corresponding to the diagnostic item set by the setting unit from the in-vehicle device mounted on the vehicle.

According to the present invention, the driving skill can be appropriately diagnosed according to the available communication capacity.

FIG. 1 is a diagram showing an outline of a driving diagnosis method. FIG. 2 is a block diagram of the operation diagnosis system. FIG. 3 is a diagram showing a specific example of communication capacity information. FIG. 4 is a diagram showing a specific example of priority information. FIG. 5 is a diagram showing a setting example of a diagnostic item based on position information. FIG. 6 is a diagram showing an example of transition of the diagnosis result. FIG. 7 is a diagram showing an example of a diagnosis result to be notified to the user. FIG. 8A is a diagram (No. 1) showing a specific example of processing by the generation unit. FIG. 8B is a diagram (No. 2) showing a specific example of processing by the generation unit. FIG. 8C is a diagram (No. 3) showing a specific example of processing by the generation unit. FIG. 8D is a diagram (No. 4) showing a specific example of processing by the generation unit. FIG. 8E is a diagram (No. 5) showing a specific example of processing by the generation unit. FIG. 8F is a diagram (No. 6) showing a specific example of processing by the generation unit. FIG. 9A is a flowchart showing a processing procedure executed by the operation diagnosis server. FIG. 9B is a flowchart showing a processing procedure executed by the in-vehicle device. FIG. 10 is a diagram showing an outline of processing by the setting unit according to the modified example. FIG. 11 is a diagram showing an example of releasing the upper limit number of times. FIG. 12 is a diagram showing an example of setting an upper limit value of the communication capacity.

Hereinafter, the operation diagnosis server, the operation diagnosis system, and the operation diagnosis method according to the embodiment will be described in detail with reference to the attached drawings. The present invention is not limited to the embodiments shown below.

First, the outline of the operation diagnosis method according to the embodiment will be described with reference to FIG. FIG. 1 is a diagram showing an outline of a driving diagnosis method. The driving diagnosis method is executed by the driving diagnosis system 100 including the driving diagnosis server 1 and the in-vehicle device 50 shown in FIG. Further, although FIG. 1 shows one in-vehicle device 50, the driving diagnosis system 100 may include a plurality of in-vehicle devices 50.

The operation diagnosis server 1 and the in-vehicle device 50 can perform data communication with each other via, for example, the network described later in FIG. The driving diagnosis server 1 receives operation information regarding the driving operation by the driver of the vehicle C from the in-vehicle device 50, and diagnoses the driving skill of the driver based on the operation information.

Further, the driving diagnosis server 1 receives driver information regarding the driver's behavior during driving, object information regarding an object around the vehicle C, and the like in addition to the operation information, and the driver is based on the driver information and the object information. You can also diagnose your driving skills. The driver information is, for example, the driver's line-of-sight information, posture information, and the like. Hereinafter, information including operation information, line-of-sight information, and object information is referred to as vehicle information.

The in-vehicle device 50 is, for example, an in-vehicle communication module such as a DCM (Date Communication Module). In the operation diagnosis system 100, an upper limit value of the communication capacity capable of communicating in a predetermined period (for example, one month) is set for each in-vehicle device 50.

Here, in the prior art, the driving skill is diagnosed by a certain diagnostic item regardless of the communication capacity used. In other words, in the prior art, the upper limit of the communication capacity was not considered.

Therefore, in the prior art, the communication capacity of the data communication used for diagnosing the driving skill may exceed the upper limit value. If the upper limit is exceeded, the communication speed will drop significantly, and the operation diagnosis server and the in-vehicle device will not be able to perform data communication normally. Therefore, in the prior art, when the communication capacity exceeds the upper limit value, the operation information cannot be received from the in-vehicle device, and the driving skill may not be properly diagnosed.

Therefore, in the driving diagnosis method according to the embodiment, it is decided to diagnose the driving skill so as not to exceed the upper limit of the communication capacity. Specifically, as shown in FIG. 1, first, in the driving diagnosis method, a diagnosis item of driving skill is set for each in-vehicle device 50 so as not to exceed the communication capacity specified for each in-vehicle device 50 (step). S1).

For example, in the operation diagnosis method, a diagnosis item is set based on the free capacity which is the difference between the upper limit value of the communication capacity and the communication capacity used, or the number of times the diagnosis item is executed in one month is set in advance. be able to.

Subsequently, in the driving diagnosis method, the vehicle information corresponding to the set diagnosis item is received from the in-vehicle device 50 (step S2). In the driving diagnosis method, for example, the in-vehicle device 50 determines a situation corresponding to a set diagnosis item, and transmits vehicle information corresponding to the situation to the driving diagnosis server 1.

That is, in the driving diagnosis method, the driving diagnosis server 1 can receive the vehicle information corresponding to the diagnosis item for which the implementation is permitted from the in-vehicle device 50. Then, in the driving diagnosis method, the driving skill of the driver of the vehicle C is diagnosed based on the received vehicle information (step S3).

As described above, in the driving diagnosis method according to the embodiment, the communication capacity to be used can be set within the upper limit value of the communication capacity by setting the diagnosis item of the driving skill according to the available communication capacity.

That is, in the driving diagnosis method according to the embodiment, by setting the diagnosis item based on the communication capacity, the driving skill can be appropriately diagnosed according to the available communication capacity.

Next, the configuration of the operation diagnosis system 100 according to the embodiment will be described with reference to FIG. FIG. 2 is a block diagram of the operation diagnosis system 100. As described above, the driving diagnosis system 100 includes a driving diagnosis server 1 and an in-vehicle device 50.

Further, FIG. 2 also shows a navigation device 6, a radar device 7, a camera 8, a display device 60, a brake sensor Sc1, an accelerator opening sensor Sc2, a steering angle sensor Sc3, a line-of-sight detection sensor Sc4, and the like.

The display device 60 is, for example, a touch panel display. The display device 60 displays, for example, a diagnosis result of driving skill based on the information acquired from the in-vehicle device 50. Although the display device 60 is shown as a separate device from the navigation device 6 in FIG. 2, the display device 60 may be provided in the navigation device 6. When the display device 60 is provided in the navigation device 6, the navigation device 6 acquires information from the in-vehicle device 50 and displays the diagnosis result of the driving skill and the like.

In the operation diagnosis system 100 according to the embodiment, the diagnosis result can be confirmed from the terminal device by accessing the network N from the terminal device such as the user's smartphone or personal computer.

Further, the brake sensor Sc1, the accelerator opening sensor Sc2, the steering angle sensor Sc3, and the line-of-sight detection sensor Sc4 each output the detected sensor values to the in-vehicle device 50 by CAN (Controller Area Network) communication. The in-vehicle device 50 generates operation information indicating a driving operation by the driver of the vehicle C and vehicle information including such operation information based on the sensor value.

The radar device 7 is provided around the vehicle C, for example, detects the position of an obstacle or the like existing around the vehicle C, and outputs the position to the in-vehicle device 50. The camera 8 outputs the captured image information obtained by capturing the surroundings of the vehicle C to the in-vehicle device 50. In the following, the information input from the radar device 7 and the camera 8 will be collectively referred to as object information.

The operation diagnosis server 1 includes a control unit 2, a storage unit 3, and a communication unit 10. The communication unit 10 is a communication interface that performs data communication with the in-vehicle device 50 via the network N.

The control unit 2 includes a counting unit 21, a receiving unit 22, a diagnostic unit 23, a setting unit 24, and a transmitting unit 25. The control unit 2 includes, for example, a computer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), an input / output port, and various circuits.

The CPU of the computer functions as a counting unit 21, a receiving unit 22, a diagnostic unit 23, a setting unit 24, and a transmitting unit 25 of the control unit 2, for example, by reading and executing a program stored in the ROM.

Further, at least one or all of the counting unit 21, the receiving unit 22, the diagnostic unit 23, the setting unit 24, and the transmitting unit 25 of the control unit 2 are ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), or the like. It can also be configured with the hardware of.

Further, the storage unit 3 corresponds to, for example, a RAM or an HDD. The RAM or HDD can store communication capacity information 31, priority information 32, diagnosis history information 33, and information on various programs. The operation diagnosis server 1 may acquire the above-mentioned programs and various information via another computer or a portable recording medium connected by a wired or wireless network.

The counting unit 21 of the control unit 2 counts the cumulative value of the communication capacity of the data communication between the communication unit 10 and the in-vehicle device 50. Further, the counting unit 21 stores the accumulated value of the counted communication capacity in the storage unit 3 as the communication capacity information 31.

Here, the communication capacity information 31 will be described with reference to FIG. FIG. 3 is a diagram showing a specific example of the communication capacity information 31. As described above, in the operation diagnosis system 100 according to the embodiment, the upper limit value of the communication capacity capable of communicating with the operation diagnosis server 1 in one month is defined for each in-vehicle device 50.

The upper limit of the communication capacity is determined by a contract between the user and the dealer at the time of purchasing the in-vehicle device 50, for example. Therefore, in the following, the upper limit of the communication capacity will be referred to as the contract communication capacity.

As shown in FIG. 3, in the driving diagnosis system 100 according to the embodiment, the upper limit value of the communication capacity that can be used for the driving skill diagnosis is set among the contracted communication capacities.

That is, in the driving diagnosis system 100, the driving skill diagnosis is performed using the specified communication capacity instead of using the entire contracted communication capacity for the driving skill diagnosis.

Further, “others” shown in FIG. 3 is a communication capacity that can be freely used by the user, such as receiving file data of music or moving images, searching on the Internet, and the like.

As described above, in the driving diagnosis system 100, by prescribing the communication capacity used for the driving skill diagnosis, the communication capacity that can be freely used by the user can be secured.

Then, the counting unit 21 counts the communication capacity of the data input or output from the communication unit 10 for each data, and adds the communication capacity to the corresponding item of the communication capacity information 31, so that the cumulative value of each item is accumulated. Can be counted.

Specifically, for example, the counting unit 21 adds the communication capacity to the driving skill diagnosis if the data is related to the driving diagnosis, and adds the communication capacity to the data other than the driving skill diagnosis.

In the driving diagnosis system 100 according to the embodiment, for example, data communication is performed by assigning an identifier to data related to driving skills. As a result, the counting unit 21 can determine whether or not the data is related to the driving skill based on the identifier.

Further, in the example shown in FIG. 3, a case where the driving skill diagnosis and other data communication use the same communication line is illustrated, but the present invention is not limited to this, and the communication is dedicated for the driving skill diagnosis. A line may be provided.

Returning to the description of FIG. 2, the receiving unit 22 will be described. The receiving unit 22 receives the data transmitted from the vehicle-mounted device 50 via the communication unit 10. The data received by the receiving unit 22 is output to the diagnostic unit 23.

The diagnosis unit 23 diagnoses the driving skill of the driver of the vehicle C based on the vehicle information among the information received by the reception unit 22. Further, the diagnosis unit 23 stores the diagnosis result as the diagnosis history information 33 of the storage unit 3 for each vehicle C or the driver. The diagnostic unit 23 can diagnose a plurality of diagnostic items, and details of this point will be described later with reference to FIG.

The setting unit 24 sets the diagnostic items of the diagnostic unit 23 so as not to exceed the upper limit of the communication capacity defined for each in-vehicle device 50. For example, the setting unit 24 can set diagnostic items based on the communication capacity information 31 and the priority information 32.

Here, the priority information 32 will be described with reference to FIG. FIG. 4 is a diagram showing a specific example of priority information 32. The priority information 32 is information in which the diagnostic item and the used capacity are associated with each other. The used capacity indicates the ratio of the used communication capacity to the upper limit of the communication capacity assigned to the driving skill diagnosis.

As shown in FIG. 4, the priority information 32 defines diagnostic items to be performed according to the capacity used. For example, the operation diagnosis server 1 implements four types of diagnosis items when the used capacity (used capacity) is less than 50% of the total communication capacity.

Further, the operation diagnosis server 1 implements three types of diagnostic items when the used capacity is 50% or more and less than 70%, and implements two types of diagnostic items when the used capacity is 70% or more and less than 90%. When the used capacity is 90% or more, one type of diagnostic item is carried out. In this way, the operation diagnosis server 1 changes the diagnosis items according to the used capacity. Specifically, the operation diagnosis server 1 reduces the number of diagnosis items as the used capacity increases.

Next, each diagnostic item will be described. The "emergency avoidance skill diagnosis" shown in FIG. 4 diagnoses, for example, the driver's sudden deceleration and driving skill at a steep steering angle.

For example, when the diagnosis unit 23 diagnoses "emergency avoidance skill diagnosis", sudden deceleration and sudden steering angle (sudden braking, sudden steering) are careless (for example, looking away) of the driver based on the driver's line-of-sight information. It is determined whether or not it is due to.

Then, the diagnosis unit 23 has a high skill for "emergency avoidance skill diagnosis" when the sudden braking and sudden steering are not due to the driver's carelessness and the collision of the vehicle C can be avoided by the sudden braking and sudden steering. Diagnose.

On the other hand, when the diagnosis unit 23 determines that the sudden braking and sudden steering are caused by the driver's carelessness based on the line-of-sight information, even if the sudden braking and sudden steering can avoid the collision of the vehicle C, " Diagnose that the skill for "emergency avoidance skill diagnosis" is low.

That is, the diagnosis unit 23 can diagnose that the skill for "emergency avoidance skill diagnosis" is low for sudden braking and sudden steering due to the driver's carelessness.

Further, when the cause of the sudden braking and the sudden steering angle cannot be identified, the diagnosis unit 23 can cancel the emergency avoidance skill diagnosis at that time. That is, the pre-diagnosis state can be maintained without changing the driver's skill regarding emergency avoidance. The diagnosis unit 23 may diagnose that the driving skill is low when the frequency of sudden deceleration and sudden steering is more than a predetermined number of times within a certain period even when the cause of sudden deceleration and sudden steering angle cannot be identified. .. That is, when the frequency of sudden deceleration and sudden steering is high, it can be diagnosed that the driver's driving skill is low.

The "priority skill diagnosis" is, for example, diagnosing the driver's basic driving skills. Specifically, in a situation where there are no other vehicles or pedestrians around, the driving skill is diagnosed for the driver's acceleration / deceleration and steering wheel operation when the vehicle C travels on a road with a sufficient road width. be.

The diagnosis unit 23 can diagnose that the skill for the "priority skill diagnosis" is high, for example, when the vehicle speed gradually changes during acceleration / deceleration or when the steering angle changes gently during curve traveling.

The "standard skill diagnosis" is the minimum skill required for driving the vehicle C. For example, the driving skill of the steering wheel operation at the time of acceleration / deceleration or a curve is diagnosed. The standard skill diagnosis is performed at a predetermined cycle regardless of the surrounding conditions of the vehicle C, for example.

"Other skill diagnosis" diagnoses driving skills other than the above, and diagnoses driving skills such as danger prediction behavior, for example. The required vehicle information differs for each diagnosis item, and the communication capacity used for each such vehicle information can be obtained in advance.

Here, the driving skill diagnosis has a higher priority toward the left side of the figure. That is, in the operation diagnosis system 100 according to the embodiment, since there is a high possibility that the "emergency avoidance skill diagnosis" is directly linked to an accident in an emergency, it is set to always be carried out regardless of the amount of capacity used.

On the other hand, for "Priority Skill Diagnosis", "Standard Skill Diagnosis" and "Other Skill Diagnosis", which have lower priorities than "Emergency Skill Diagnosis", when the usage capacity is small according to their respective priorities. Is set to be carried out, and not to be carried out when the used capacity is large.

For example, the setting unit 24 can set the diagnostic items to be diagnosed by the diagnostic unit 23 based on the capacity used for the driving skill diagnosis shown in FIG. In this way, the setting unit 24 sets so that only the diagnosis having a higher priority is performed as the used capacity increases. In other words, when the communication capacity is small, the setting unit 24 is set to perform a high-priority diagnosis and also to perform a low-priority diagnosis.

That is, in the operation diagnosis system 100 according to the embodiment, it is possible to reliably diagnose a diagnosis item having a high priority regardless of the capacity used. Further, since the setting unit 24 determines the diagnostic items to be executed by the operation diagnosis server 1 according to the communication capacity, for example, the number of diagnostic items to be executed is reduced due to the increase in the communication capacity. Then, the communication unit 10 transmits item information indicating the diagnostic item to be executed to the in-vehicle device 50 at the timing when the diagnostic item is changed in this way.

As a result, the in-vehicle device 50 transmits the vehicle information corresponding to the diagnosis item permitted to be implemented by the setting unit 24 to the driving diagnosis server 1 based on the received item information. In other words, the vehicle information corresponding to the diagnostic item for which implementation is not permitted is not transmitted to the driving diagnostic server 1. The communication capacity may be counted on the in-vehicle device 50 side to determine whether or not each skill diagnosis can be performed according to the communication capacity. In other words, the counting unit 21 and the setting unit 24 may be included in the configuration of the in-vehicle device 50. The processing of the item information on the vehicle-mounted device 50 side will be described later with reference to FIGS. 8A to 8F.

By the way, the setting unit 24 can also set the diagnostic item based on the position information in which the vehicle C travels. Here, a case where the setting unit 24 sets the diagnostic item based on the position information will be described with reference to FIG. FIG. 5 is a diagram showing a setting example of a diagnostic item based on position information.

As shown in FIG. 5, for example, the setting unit 24 limits the number of diagnoses when the current location of the vehicle C is around the driver's home. For example, the setting unit 24 sets the diagnosis item so that only the "emergency avoidance skill diagnosis" is performed when the current location of the vehicle C is around the driver's home. In other words, the setting unit 24 can refrain from "priority skill diagnosis", "standard skill diagnosis", and "other skill diagnosis" around the home.

This is because the driver frequently drives around the driver's home, so that many driving skill diagnoses such as priority skill diagnosis and standard skill diagnosis are performed around the home.

That is, the setting unit 24 limits the number of diagnoses for diagnostic items other than the "emergency avoidance skill diagnosis" because the number of samples of each diagnostic item around the home is sufficient. As a result, the communication capacity used for driving skill diagnosis around the home can be reduced. In addition, since the reduced communication capacity can be used for driving skill diagnosis in places other than around the home, it is possible to diagnose driving skills in various situations.

The setting unit 24 may set the number of diagnoses so that the driving skill diagnosis is intentionally performed around the home. As a result, the number of samples of diagnostic results at the same point can be increased, and the transition of the driver's driving skill can be grasped more accurately.

Further, here, the case where the setting unit 24 limits the diagnostic items around the driver's home has been described, but the case is not limited to the vicinity of the driver's home. That is, for example, the setting unit 24 stores the diagnosis results in association with each driver on a map, and for the roads where the diagnosis results reach a predetermined number, the number of diagnoses is so as not to carry out a specific diagnosis. May be limited.

In addition, the setting unit 24 can set diagnostic items according to the intersection, the expressway, or the like when the vehicle C travels on the intersection, the expressway, or the like, based on the position information of the vehicle C.

Further, the setting unit 24 can also set the diagnosis item based on the transition of the diagnosis result for each driver. Therefore, a case where diagnostic items are set based on the transition of diagnostic results will be described with reference to FIG. FIG. 6 is a diagram showing an example of transition of the diagnosis result.

The vertical axis of FIG. 6 indicates the score which is the diagnosis result by the diagnosis unit 23, and the horizontal axis indicates the date. The higher the score, the higher the driving skill.

For example, as shown by the solid line in FIG. 6, the setting unit 24 limits the number of times the diagnosis of the diagnostic item is performed when the transition of the score exceeds the threshold value Th, and falls below the threshold value Th as shown by the broken line. In some cases, such restrictions can be lifted.

That is, when the driver's driving skill is proficient and a high score can be stably obtained, the setting unit 24 reduces the number of executions for diagnosis items other than the above-mentioned "emergency avoidance skill diagnosis", for example. Can be done. As a result, the communication capacity used for driving skill diagnosis can be reduced.

Further, as shown by the broken line in FIG. 6, the setting unit 24 can make a more detailed diagnosis of the driver's driving skill by returning the number of executions to the original when the score is lower than the threshold value Th. In such a case, for example, the communication capacity for the driving skill diagnosis can be increased with the permission of the user.

Returning to the description of FIG. 2, the transmission unit 25 will be described. The transmission unit 25 transmits the item information set by the setting unit 24 to the in-vehicle device 50 via the counting unit 21 and the like.

As a result, the in-vehicle device 50 transmits the vehicle information corresponding to the diagnosis item to the driving diagnosis server 1. Further, the transmission unit 25 transmits the diagnosis result of the driving skill to the in-vehicle device 50.

The diagnosis result is displayed on the display device 60 via the in-vehicle device 50, for example. Here, a specific example of the diagnosis result will be described with reference to FIG. 7. FIG. 7 is a diagram showing an example of a diagnosis result to be notified to the user.

As shown in FIG. 7, in the driving diagnosis system 100 according to the embodiment, for example, the score of each diagnosis item and the advice for improving the driving skill can be notified to the user.

That is, in the driving diagnosis system 100 according to the embodiment, improvement of the driving skill of the user can be promoted by feeding back the diagnosis result of the driving skill to the user.

Returning to the description of FIG. 2, the vehicle-mounted device 50 will be described. The in-vehicle device 50 includes a communication unit 51, an acquisition unit 52, and a generation unit 53. The communication unit 51 is a communication interface that performs data communication with the operation diagnosis server 1 via the network N.

The acquisition unit 52 acquires the data transmitted from the operation diagnosis server 1. Such data includes, for example, item information set by the setting unit 24, a diagnosis result of the driving skill shown in FIG. 7, and the like. The acquisition unit 52 outputs the item information of the acquired data to the generation unit 53, and outputs the diagnosis result to the display device 60.

The generation unit 53 detects a situation for a diagnosis item permitted to be executed by the operation diagnosis server 1 based on the above item information, and generates vehicle information corresponding to the diagnosis item. Further, the generation unit 53 transmits the generated vehicle information to the driving diagnosis server 1 via the communication unit 51 and the like.

Here, the details of the processing by the generation unit 53 will be described with reference to FIGS. 8A to 8F. 8A to 8F are diagrams showing specific examples of processing by the generation unit 53. First, a case where the used capacity is less than 50% will be described with reference to FIGS. 8A and 8B. As shown in FIG. 4, in the operation diagnosis system 100, when the used capacity is less than 50%, diagnosis is performed for all the diagnosis items.

For example, the generation unit 53 determines the operation diagnosis server 1 based on the accelerator opening information, the brake operation information, the operation information including the steering operation information, the line-of-sight information, and the object information input from each sensor Sc, the radar device 7, and the camera 8. Detects the situation corresponding to the diagnostic item permitted by.

In the generation unit 53, for example, when a pedestrian or a preceding vehicle is not detected around the vehicle C from the image information taken by the camera 8, and the vehicle C travels on a wide road from the position information and the map information of the vehicle C. In addition, it is detected as a situation corresponding to "Priority skill diagnosis".

In the example shown in the figure, it is assumed that the generation unit 53 detects the situation corresponding to the priority skill diagnosis at time t1. The generation unit 53 transmits vehicle information from the time t1 to the lapse of a predetermined time (time t1a) to the driving diagnosis server 1. For example, the vehicle information of the "priority skill diagnosis" is "accelerator opening degree information", "brake operation information", and "steering operation information".

Although the generation unit 53 can acquire the map information indicating the road width of the road on which the vehicle C travels from the navigation device 6, the generation unit 53 may acquire the map information from a server outside the vehicle C. Further, the generation unit 53 may transmit the vehicle information at the times t1 to t1a to the driving diagnosis server 1 at the time t1a or at any timing after the time t1a. ..

Further, the operation diagnosis server 1 performs "standard skill diagnosis" at a predetermined cycle. Therefore, when the execution of the "standard skill diagnosis" is permitted, the generation unit 53 provides the vehicle information corresponding to the standard skill diagnosis at predetermined timings (time T1) regardless of the surrounding conditions of the vehicle C. Send to 1.

The vehicle information of the "standard skill diagnosis" is, for example, "accelerator opening degree information", "brake operation information", and "steering operation information". The operation diagnosis server 1 or the generation unit 53 can also dynamically change the time T1 according to the capacity used, the position information, and the like. That is, when the used capacity is compressed, the time T1 can be set longer than usual.

Further, for example, when the "standard skill diagnosis" overlaps with other skill diagnoses in time, vehicle information corresponding to the skill diagnosis having a high priority may be transmitted. Further, when the vehicle information includes common information, the vehicle-mounted device 50 can also transmit such information in common.

For example, "standard skill diagnosis" and "emergency avoidance diagnosis" differ only in "line-of-sight information" and "object information". Therefore, the driving diagnosis server 1 can also diagnose the "standard skill diagnosis" based on the vehicle information corresponding to the "emergency avoidance diagnosis".

That is, in the driving diagnosis system 100, when the vehicle information includes information common to each diagnosis item, a plurality of diagnoses may be performed based on the acquired vehicle information.

Further, when the generation unit 53 detects at least one of the sudden deceleration and the sharp turn of the vehicle C, it can be detected as a situation corresponding to the "emergency avoidance skill diagnosis".

In such a case, the generation unit 53 transmits vehicle information including "accelerator opening degree information", "brake operation information", "steering operation information", "line-of-sight information" and "object information" to the driving diagnosis server 1. Such object information is, for example, information input from the radar device 7 or the camera 8, and is information on the positions, speeds, angles, and the like of other vehicles and pedestrians around the vehicle C.

In addition, the generation unit 53 detects the situation of "other skill diagnosis". Specifically, the generation unit 53 transmits vehicle information to the driving diagnosis server 1 based on whether or not the driver has performed a driving operation (driving operation) to reduce the speed of the vehicle C in front of the pedestrian crossing. .. The vehicle information of the "other skill diagnosis" is, for example, "accelerator opening degree information", "brake operation information", "steering operation information", "line-of-sight information", and "object information".

That is, the in-vehicle device 50 transmits the vehicle information used by the driving diagnosis server 1 for "other skill diagnosis" to the driving diagnosis server 1 as information based on the driver's danger prediction (for example, pedestrian jump-out prediction). Further, the in-vehicle device 50 acquires the position information of a point where pedestrians frequently jump out (for example, a school road) in advance, and when the vehicle C travels on the point, the driving diagnosis server 1 is informed of "other skill diagnosis". The vehicle information corresponding to "" may be transmitted. Further, the in-vehicle device 50 may transmit vehicle information corresponding to "other skill diagnosis" when, for example, an interruption by another vehicle is detected based on the target information.

In this way, the "other skill diagnosis" is a diagnosis performed on the driving operation performed by the driver in anticipation of a dangerous situation (diagnosis on the driver's operation before the danger occurs). , "Emergency avoidance skill diagnosis" is a diagnosis (diagnosis regarding the driver's operation after a danger occurs) performed regarding the driving operation performed by the driver when a pedestrian jumps out.

The combination of vehicle information transmitted to the driving diagnosis server 1 in each diagnosis item is an example, and vehicle information of a combination other than the above may be transmitted to the driving diagnosis server 1 to perform diagnosis.

Here, as described above, when the used capacity is less than 50%, the diagnosis is performed for all the diagnostic items. Therefore, when the used capacity is less than 50%, the in-vehicle device 50 generates vehicle information for each detection of a situation corresponding to all the diagnostic items and transmits the vehicle information to the driving diagnostic server 1.

Therefore, in such a case, as shown in FIG. 8B, vehicle information corresponding to all the diagnostic items is transmitted. As a result, the driving diagnosis server 1 can perform a driving skill diagnosis every time the vehicle information is received.

On the other hand, if the capacity used is less than 50% to 70%, the implementation of "other skill diagnosis" is restricted (see FIG. 4). Therefore, as shown in FIG. 8C, the vehicle-mounted device 50 does not transmit the vehicle information to the driving diagnosis server 1 even when the situation corresponding to the “other skill diagnosis” is detected.

As a result, when the used capacity is less than 50% to 70%, the amount of communication for "other skill diagnosis" can be reduced as shown in FIG. 8D. Further, when the used capacity is 70% to less than 90%, as shown in FIG. 8E, the implementation of the "standard skill diagnosis" is further restricted in addition to the "other skill diagnosis".

Therefore, when the used capacity is 70% to less than 90%, as shown in FIG. 8F, the in-vehicle device 50 detects a situation corresponding to "other skill diagnosis" and "standard skill diagnosis". However, the vehicle information is not transmitted to the driving diagnosis server 1.

As a result, the amount of communication for "other skill diagnosis" and "standard skill diagnosis" can be reduced. Then, when the used capacity exceeds 90%, the implementation of the "priority skill diagnosis" is further restricted. That is, when the used capacity exceeds 90%, the vehicle information is transmitted to the driving diagnosis server 1 only when the situation corresponding to the "emergency avoidance skill diagnosis" is detected.

In this way, in the driving diagnosis system 100, the diagnostic items that can be diagnosed are limited for each in-vehicle device 50 according to the capacity used. As a result, as the used capacity increases, only the vehicle information corresponding to the diagnosis item having a higher priority can be transmitted to the driving diagnosis server 1.

In other words, the driving diagnosis system 100 limits the transmission of vehicle information according to the capacity used. As a result, the amount of communication used for the operation diagnosis can be kept within the upper limit value for the operation diagnosis. That is, in the driving diagnosis system 100, the driving skill can be appropriately diagnosed according to the available communication capacity.

Next, a processing procedure executed by the operation diagnosis server 1 according to the embodiment will be described with reference to FIG. 9A. FIG. 9A is a flowchart showing a processing procedure executed by the operation diagnosis server 1.

As shown in FIG. 9A, the setting unit 24 of the operation diagnosis server 1 sets a diagnosis item based on the free communication capacity (step S101), and the transmission unit 25 transmits item information indicating the diagnosis item (step S101). Step S102).

Subsequently, the receiving unit 22 receives the operation information corresponding to the diagnosis item (step S103), and the diagnosis unit 23 diagnoses the driving skill based on the operation information (step S104). Then, the transmission unit 25 transmits the diagnosis result (step S105), and ends the process.

Next, the processing procedure executed by the in-vehicle device 50 will be described with reference to FIG. 9B. FIG. 9B is a flowchart showing a processing procedure executed by the in-vehicle device 50. The processing procedure shown below is repeatedly executed by the in-vehicle device 50, for example, during the period when the ignition switch of the vehicle C is on.

As shown in the figure, first, the communication unit 51 of the in-vehicle device 50 receives item information from the operation diagnosis server 1 (step S201). Subsequently, the generation unit 53 determines whether or not a situation corresponding to the diagnostic item for which execution is permitted based on the item information has been detected (step S202).

When a situation corresponding to the diagnosis item is detected in such a determination (step S202, Yes), the generation unit 53 generates vehicle information corresponding to the diagnosis item (step S203). Then, the communication unit 51 transmits such vehicle information (step S204), and ends the process. On the other hand, when the situation corresponding to the diagnostic item is not detected (steps S202 and No), the processes after step S201 are repeated.

As described above, the operation diagnosis server 1 according to the embodiment includes a diagnosis unit 23, a setting unit 24, and a reception unit 22. The diagnosis unit 23 diagnoses the driving skill of the driver based on the operation information regarding the driving operation by the driver of the vehicle C. The setting unit 24 sets diagnostic items to be diagnosed by the diagnostic unit 23 so as not to exceed a predetermined upper limit of the communication capacity. The receiving unit 22 receives the operation information corresponding to the diagnostic item set by the setting unit 24 from the in-vehicle device 50 mounted on the vehicle C. Therefore, according to the driving diagnosis server 1 according to the embodiment, the driving skill can be appropriately diagnosed according to the available communication capacity.

By the way, in the above-described embodiment, the case where the setting unit 24 sets the diagnostic item based on the free capacity of the communication capacity has been described, but the present invention is not limited to this.

That is, the setting unit 24 can, for example, set the number of diagnoses for each diagnostic item for each month. Therefore, the details of this point will be described with reference to FIGS. 10 to 12.

First, an outline of processing by the setting unit 24 according to the modified example will be described with reference to FIG. FIG. 10 is a diagram illustrating processing by the setting unit 24 according to the modified example.

As shown in FIG. 10, the setting unit 24 sets "communication capacity for setting" and "communication capacity for securing" among the total communication capacity allocated for the driving skill diagnosis.

Then, the setting unit 24 allocates the number of diagnoses of each diagnosis item to the communication capacity for the set amount. At this time, the setting unit 24 can set the number of diagnoses based on the score of each diagnosis item, for example.

Specifically, for example, when the score of the priority skill diagnosis is low and the score of the standard skill diagnosis is high, the setting unit 24 can set the number of diagnoses of the priority skill diagnosis to be larger than the number of diagnoses of the standard skill diagnosis.

That is, the setting unit 24 can set the number of diagnoses of each diagnostic item with respect to the set communication capacity according to the driving skill of the user. In other words, the setting unit 24 can set the optimum diagnostic item according to the driving skill of the user.

Further, the setting unit 24 can also set the number of diagnoses according to the frequency of use of the vehicle C for each user. Specifically, the setting unit 24 can set a larger number of diagnoses per trip for a user who frequently uses the vehicle C than a user who frequently uses the vehicle C.

That is, the setting unit 24 can appropriately set the number of diagnoses in one month according to the frequency of use by the user. As a result, even a user who uses the vehicle C infrequently can fully use the communication capacity allocated as the upper limit of the driving skill diagnosis.

Here, the secured communication capacity is the communication capacity allocated to the emergency avoidance skill diagnosis. That is, the setting unit 24 does not dare to set the number of diagnoses for the emergency avoidance skill diagnosis. This is because it is not possible to predict when a situation such as sudden braking or sudden steering corresponding to the emergency avoidance skill diagnosis will occur.

That is, the setting unit 24 can surely perform the emergency avoidance skill diagnosis by securing a part of the communication capacity and setting the diagnosis item.

The setting unit 24 can set the reserved communication capacity according to the diagnosis result for each user. For example, as a result of diagnosing the driving skill, the setting unit 24 sets a larger amount of communication capacity for the user who has a rough driving operation than a user who has a gentle driving operation.

In addition, the setting unit 24 can cancel the above-mentioned number of diagnoses when the score, which is the diagnosis result of each diagnostic item, decreases. Here, the details of such a point will be described with reference to FIG. FIG. 11 is a diagram showing an example of releasing the upper limit number of times.

The vertical axis of FIG. 11 indicates the score, and the horizontal axis indicates the time. As shown at time t4 to time t5 in FIG. 11, the setting unit 24 cancels the set number of diagnoses when the score drops beyond the predetermined value V.

This is because when the score decreases, it means that the driver's driving has become rough and the probability of encountering an accident increases. That is, the setting unit 24 cancels the number of diagnoses in such a case, and sets a large number of diagnoses of the driving skill.

In this way, the setting unit 24 can investigate the cause of the decrease in the driving skill by increasing the number of samplings for the driving skill diagnosis when the score decreases.

In such a case, when the communication capacity allocated to the driving skill diagnosis is exceeded, for example, the other communication capacity shown in FIG. 3 can be used. Further, the setting unit 24 changes the method of setting the diagnosis item based on the priority shown in FIG. 4 and the method of setting the number of diagnoses for each diagnosis item shown in FIG. 10 in a predetermined period, and the whole used by the user. The communication capacity of the above may be adjusted so as to be within the upper limit of the communication capacity.

Further, the setting unit 24 uses a part of the communication capacity allocated for the driving skill diagnosis as the communication capacity for setting the diagnosis item based on the priority, and the rest as the amount for setting the number of diagnoses for each diagnosis item. A diagnostic item may be set as the communication capacity.

Further, the setting unit 24 can also set an upper limit value of the communication capacity used for the driving skill diagnosis according to the communication capacity used by the user. Here, a method of setting the upper limit value of the communication capacity will be described with reference to FIG. FIG. 12 is a diagram showing an example of setting an upper limit value of the communication capacity.

FIG. 12 shows a breakdown of the communication capacity used every month. For example, the setting unit 24 estimates the communication capacity used by the user in the next month (March) based on the communication capacity used by the user in the past month (January and February).

In the example shown in the figure, the driving skill diagnosis and other communication capacities in the past month are less than the contracted communication capacity. That is, it indicates that the contracted communication capacity has not been used up in the past months.

Therefore, the setting unit 24 estimates, for example, the communication capacity used by the user in the next month from the communication capacity used by the user in the past month. Then, the setting unit 24 can allocate the communication capacity of the contracted communication capacity minus the estimated communication capacity to the communication capacity of the driving skill diagnosis.

That is, the setting unit 24 can allocate the communication capacity to the driving skill diagnosis so as to use up the contract communication capacity. Further, the setting unit 24 can review the total communication capacity when the communication capacity for the set driving skill diagnosis is close to the allowable upper limit. For example, the setting unit 24 can increase the communication capacity allocated to the driving skill diagnosis, or propose to the user to increase the contract communication capacity itself.

Further effects and variations can be easily derived by those skilled in the art. For this reason, the broader aspects of the invention are not limited to the particular details and representative embodiments described and described above. Therefore, various changes are possible without departing from the spirit or scope of the overall concept of the invention as defined by the appended claims and their equivalents.

1 Operation diagnosis server 10 Communication unit 21 Counting unit 22 Reception unit 23 Diagnosis unit 24 Setting unit 25 Transmission unit 50 In-vehicle device 51 Communication unit 52 Acquisition unit 53 Generation unit 60 Display device C Vehicle N network

Claims (9)

A diagnostic unit that diagnoses the driving skill of the driver based on the operation information related to the driving operation by the driver of the vehicle, and
A setting unit that sets diagnostic items to be diagnosed by the diagnostic unit so as not to exceed a predetermined upper limit of communication capacity, and a setting unit.
It includes a receiving unit that receives the operation information corresponding to the diagnostic item set by the setting unit from the in-vehicle device mounted on the vehicle .
The setting unit
An operation diagnosis server characterized in that the diagnosis item is set based on a free space indicating a communication capacity up to the upper limit value and a priority set for each diagnosis item. A diagnostic unit that diagnoses the driving skill of the driver based on the operation information related to the driving operation by the driver of the vehicle, and
A setting unit that sets diagnostic items to be diagnosed by the diagnostic unit so as not to exceed a predetermined upper limit of communication capacity, and a setting unit.
It includes a receiving unit that receives the operation information corresponding to the diagnostic item set by the setting unit from the in-vehicle device mounted on the vehicle .
The setting unit
An operation diagnosis server characterized in that the number of diagnoses is set for each of the diagnosis items. The setting unit
The operation diagnosis server according to claim 2 , wherein a part of the communication capacity is secured and the number of diagnoses is set. The setting unit
The driving diagnosis server according to claim 2 or 3 , wherein when the score of the driving skill diagnosed by the diagnosis unit is lower than a predetermined value, the number of diagnoses is canceled. The receiver
Upon receiving the position information regarding the traveling position of the vehicle,
The setting unit
The operation diagnosis server according to any one of claims 1 to 4, wherein the diagnosis item is set based on the position information received by the receiving unit. The operation diagnosis server according to any one of claims 1 to 5, further comprising a transmission unit that transmits the diagnosis result diagnosed by the diagnosis unit to the in-vehicle device. The operation diagnosis server according to any one of claims 1 to 6.
A driving diagnosis system including the in-vehicle device. A diagnostic process that diagnoses the driving skill of the driver based on the operation information related to the driving operation by the driver of the vehicle, and
A setting process for setting diagnostic items to be diagnosed in the diagnostic process so as not to exceed a predetermined upper limit of the communication capacity, and a setting process.
Look including a reception step of receiving the operation information corresponding to the diagnosis item set by the setting step from the in-vehicle device mounted on the vehicle,
The setting process is
An operation diagnosis method characterized in that the diagnosis item is set based on a free capacity indicating a communication capacity up to the upper limit value and a priority set for each diagnosis item. A diagnostic process that diagnoses the driving skill of the driver based on the operation information related to the driving operation by the driver of the vehicle, and
A setting process for setting diagnostic items to be diagnosed in the diagnostic process so as not to exceed a predetermined upper limit of the communication capacity, and a setting process.
Look including a reception step of receiving the operation information corresponding to the diagnosis item set by the setting step from the in-vehicle device mounted on the vehicle,
The setting process is
A driving diagnosis method characterized in that the number of diagnoses is set for each of the diagnosis items.

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