Information processing device, information processing method, and information processing program

Abstract

To notify a vehicle control host of a tire temperature state together with information indicating reaching time until a tire reaches a specific temperature.SOLUTION: An information processing device 1 acquires tire inner temperature, and changes, when the acquired inner temperature is equal to or higher than a first temperature, an alarm notification form for notifying a user of the increase of the tire inner temperature in accordance with prediction time until the tire inner temperature reaches a second temperature set higher than the first temperature.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to an information processing apparatus, an information processing method, and an information processing program.

Background Art

[0002] A method for determining the remaining running life and the end stage of a run-flat tire that continues to run in a run-flat state has been disclosed (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, heavy machinery used in a mine's excavation site travels on an unpaved road while stepping on rocks with its tires and may carry rocks weighing hundreds of tons that have been excavated. Therefore, the tires are more likely to be loaded and the tire temperature is more likely to rise than those of vehicles that mainly travel on paved roads.

[0005] If such heavy machinery continues to run while the tire temperature has risen above a certain value, for example, a tire failure may occur, and an unscheduled work interruption may occur.

[0006] Interruptions of unplanned work reduce the operating rate of heavy machinery, thus affecting the mining plan. Therefore, drivers of heavy machinery, vehicle operation managers, etc. are performing driving and vehicle operation management to prevent the temperature of the tires from rising while referring to the temperature of the tires measured by the TPMS (Tire Pressure Monitoring System). However, it is not easy to determine what kind of driving should be done to prevent the temperature of the tires from rising. In reality, the temperature of the tires may reach a temperature at which there is a risk of failure, and work interruptions may occur. Therefore, there is a need for a method to notify drivers, vehicle operation managers, etc. that the temperature of the tires may reach a temperature at which there is a risk of failure.

[0007] An object of the present disclosure is to provide an information processing apparatus, an information processing method, and an information processing program that can notify a driver, a vehicle operation manager, etc. of the temperature status of a tire together with information representing the time until the tire reaches a specific temperature.

Means for Solving the Problems

[0008] The information processing apparatus according to the first aspect includes an acquisition unit that acquires the in-tire temperature, and when the in-tire temperature acquired by the acquisition unit is equal to or higher than a predetermined first temperature, the in-tire temperature is set to a second temperature higher than the first temperature. And a control unit that performs control to change the notification form of an alarm that notifies the user of the rise in the in-tire temperature according to the predicted time until the temperature is reached.

[0009] The information processing apparatus according to the second aspect is the information processing apparatus according to the first aspect, wherein the control unit performs control to change the notification form of the alarm so that the user can easily recognize the alarm as the predicted time becomes shorter.

[0010] The information processing apparatus according to the third aspect is the information processing apparatus according to the second aspect, wherein the control unit performs control to change the display color of a display area that displays the in-tire temperature according to the predicted time.

[0011] The information processing apparatus according to the fourth aspect is the information processing apparatus according to the second aspect or the third aspect, wherein the control unit performs control to change at least one of the presence or absence of blinking and the blinking interval of a display area that displays the in-tire temperature according to the predicted time.

[0012] The information processing apparatus according to the fifth aspect is the information processing apparatus according to the fourth aspect, wherein the control unit starts blinking of the display area when the predicted time is within a predetermined first time, and performs control to shorten the blinking interval of the display area as the predicted time becomes shorter than the first time.

[0013] The information processing apparatus according to the sixth aspect is the information processing apparatus according to any one of the second aspect to the fifth aspect, wherein the control unit controls the display of the display area that displays the in-tire temperature with a predetermined display color so that the filled area of the display area increases as the predicted time becomes shorter.

[0014] The information processing apparatus according to the seventh aspect is the information processing apparatus according to any one of the first aspect to the sixth aspect, wherein the control unit controls the acquisition unit so that the interval until the in-tire temperature is newly acquired becomes longer as the predicted time becomes longer.

[0015] The information processing apparatus according to the eighth aspect is the information processing apparatus according to any one of the first aspect to the seventh aspect, wherein the control unit performs control to display the predicted time together with the warning.

[0016] The information processing apparatus according to the ninth aspect is the information processing apparatus according to any one of the first aspect to the eighth aspect, wherein the second temperature is a temperature set by shifting a predetermined temperature from a dangerous temperature at which the risk of tire failure exceeds a specific level when the tire whose in-tire temperature has been acquired continues to run.

[0017] The information processing apparatus according to the tenth aspect is the information processing apparatus according to the ninth aspect, wherein the predetermined temperature is a temperature calculated from the distribution of the difference between the tire internal temperature and the predicted tire internal temperature which is the predicted value of the tire internal temperature at the time when the tire internal temperature was acquired.

[0018] The information processing method according to the eleventh aspect is a method in which a computer executes a process of acquiring a tire internal temperature, and when the acquired tire internal temperature is equal to or higher than a predetermined first temperature, changing a notification form of an alarm for notifying a user of an increase in the tire internal temperature according to a predicted time until the tire internal temperature reaches a second temperature set to a temperature higher than the first temperature.

[0019] The information processing program according to the twelfth aspect is a program for causing a computer to execute a process of acquiring a tire internal temperature, and when the acquired tire internal temperature is equal to or higher than a predetermined first temperature, changing a notification form of an alarm for notifying a user of an increase in the tire internal temperature according to a predicted time until the tire internal temperature reaches a second temperature set to a temperature higher than the first temperature.

[0020] The information processing apparatus according to the thirteenth aspect includes an acquisition unit that acquires a tire internal temperature of a vehicle, and a control unit that, when the tire internal temperature acquired by the acquisition unit is equal to or higher than a predetermined first temperature, transmits a predicted time until the tire internal temperature reaches a second temperature set to a temperature higher than the first temperature to an automatic control device that autonomously controls the running of the vehicle so that the tire internal temperature becomes lower than the second temperature.

[0021] The information processing method according to the fourteenth aspect is a method in which a computer executes a process of acquiring a tire internal temperature of a vehicle, and when the acquired tire internal temperature is equal to or higher than a predetermined first temperature, transmitting a predicted time until the tire internal temperature reaches a second temperature set to a temperature higher than the first temperature to an automatic control device that autonomously controls the running of the vehicle so that the tire internal temperature becomes lower than the second temperature.

[0022] The information processing program according to the 15th aspect causes a computer to acquire the temperature inside a tire of a vehicle, and when the acquired temperature inside the tire is equal to or higher than a predetermined first temperature, to transmit to an automatic control device that autonomously controls the running of the vehicle so that the temperature inside the tire becomes lower than a second temperature set to a temperature higher than the first temperature, the predicted time until the second temperature is reached.

[0023] The information processing device according to the 16th aspect includes an acquisition unit that acquires the temperature inside a tire of a vehicle, and a control unit that autonomously controls the running of the vehicle so that the temperature inside the tire becomes lower than a second temperature set to a temperature higher than the first temperature, according to the predicted time until the second temperature is reached when the temperature inside the tire acquired by the acquisition unit is equal to or higher than a predetermined first temperature.

[0024] The information processing method according to the 17th aspect is a method in which a computer executes a process of acquiring the temperature inside a tire of a vehicle, and when the acquired temperature inside the tire is equal to or higher than a predetermined first temperature, autonomously controlling the running of the vehicle so that the temperature inside the tire becomes lower than a second temperature set to a temperature higher than the first temperature, according to the predicted time until the second temperature is reached.

[0025] The information processing program according to the 18th aspect is a program for causing a vehicle to acquire the temperature inside a tire, and when the acquired temperature inside the tire is equal to or higher than a predetermined first temperature, to autonomously control the running of the vehicle so that the temperature inside the tire becomes lower than a second temperature set to a temperature higher than the first temperature, according to the predicted time until the second temperature is reached.

Advantages of the Invention

[0026] According to the present disclosure, there is an effect that the temperature situation of the tire can be notified to the driver, the vehicle operation manager, etc. together with information representing the time until the tire reaches a specific temperature.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0028] Hereinafter, this embodiment will be described with reference to the drawings. Note that the same components and the same processes are given the same reference numerals throughout the drawings, and redundant descriptions are omitted. The dimensional ratios in the drawings are exaggerated for the convenience of explanation and may be different from the actual ratios.

[0029] In the first embodiment, an aspect of predicting the time until a predetermined specific temperature is reached as the arrival time will be described. Further, in a modification of the prediction process in the first embodiment, an aspect of predicting the arrival time until a predetermined specific temperature is reached by predicting the temperature after a predetermined time has elapsed will be described.

[0030] <First Embodiment> Hereinafter, the first embodiment will be described. First, an outline of the method for predicting the temperature of the tire 2 of the present disclosure will be described. FIG. 1 is an example of a graph for explaining the transition and prediction of the temperature inside the tire. The vertical axis represents the temperature of the tire 2, and the horizontal axis represents time. Temperature α is the acquired temperature inside the tire, and temperature β is a specific temperature higher than temperature α. Also, time x is the most recent time when the temperature inside the tire was acquired, and is referred to as the "reference time point". In the first embodiment, the time y when the temperature inside the tire reaches a specific temperature (in this case, temperature β) is predicted from the temperature inside the tire at the reference time point (in this case, temperature α). In the first embodiment, tire information and the like are acquired for a period retroactively from the reference time point by an arbitrary time, and the time until the temperature inside the tire reaches from temperature α to temperature β, that is, the arrival time until time y is reached from the reference time point, is predicted. In addition, even when simply described as the "arrival time" in the following description, it shall refer to the time until time y is reached from the reference time point. The predicted arrival time is an example of the "predicted time" of the present disclosure. Note that the information processing device 1 may predict the temperature inside the tire every time time elapses from the reference time point. This is because if the temperature inside the tire can be predicted for each future time, the arrival time to reach temperature β can be obtained.

[0031] FIG. 2 is a diagram showing a functional configuration example of the information processing apparatus 1 of the present disclosure. The information processing apparatus 1 is attached to a vehicle. In order to prevent the tire 2 (see FIG. 3) from being damaged by heat generated as the temperature of the tire 2 rises, when the internal temperature of the tire becomes equal to or higher than a temperature (hereinafter referred to as the "first temperature") preset as a temperature at which it is better to start predicting the future internal temperature of the tire, it predicts the time to reach a dangerous temperature (hereinafter referred to as the "second temperature") preset as a temperature at which the risk of failure of the tire 2 exceeds a specific level from the reference time point. Note that the disclosed method is applicable not only to vehicles but also to all moving bodies such as robots having the tire 2. For convenience of explanation, the first temperature may be represented as "Tp1" and the second temperature may be represented as "Tp2". Further, there is a magnitude relationship of the first temperature < the second temperature between the first temperature and the second temperature. Also, "the internal temperature of the tire reaches the second temperature" means that the internal temperature of the tire becomes the second temperature.

[0032] There is no restriction on the installation location of the information processing apparatus 1. For example, it may be installed in each vehicle, or it may be installed in a building (hereinafter referred to as the "operation management room") where there is an operation manager who manages the operation of the vehicle or each vehicle. For example, when the information processing apparatus 1 is installed in the operation management room, the information processing apparatus 1 provides the predicted time to reach to the driver by transmitting information to a monitor attached to the vehicle through a wireless connection. When the vehicle is an autonomous vehicle, the information processing apparatus 1 transmits information to an automatic control device attached to the vehicle through a wireless connection so that the automatic control device controls the running of the vehicle according to the received information.

[0033] For convenience of explanation, at least one of a driver who controls the running of the vehicle, an operation manager, etc., and an automatic control device is collectively referred to as the "control subject of the vehicle". Among the control subjects of the vehicle, in particular, the driver and the operation manager, etc. are collectively referred to as the "user". Note that the information processing apparatus 1 may be constructed using cloud computing.

[0034] There are no restrictions on the type of vehicle for which the information processing apparatus 1 provides information. However, hereinafter, an example of predicting the arrival time of a vehicle in which a load is applied to the tire 2, such as a heavy machine used at a mining site, will be mainly described rather than a vehicle traveling on a paved road.

[0035] As shown in FIG. 2, the information processing apparatus 1 includes an acquisition unit 1A, a prediction unit 1B, a control unit 1C, and a data storage unit 1M. The first temperature and the second temperature are stored in the data storage unit 1M. Also, various information acquired by the acquisition unit 1A is stored in the data storage unit 1M.

[0036] The acquisition unit 1A acquires the in-tire temperature, and acquires tire information including at least the in-tire temperature and outside air temperature data for a period retroactively from each reference time point when the in-tire temperature becomes equal to or higher than the first temperature. The acquisition unit 1A also acquires future temperature prediction information and the heat generation history during travel. The period retroactively from a reference time point may be a specified time interval such as 15 minutes, 30 minutes, or 1 hour, or may be an arbitrary period specified by the vehicle control entity at the start of driving. Also, a travel route may be acquired and different periods may be set according to the travel route. Further, even when the travel route itself cannot be acquired, GPS information may be acquired to obtain the vehicle position information, and different periods may be set for each area corresponding to the position information. Hereinafter, the structure of the tire 2 and the in-tire temperature will be described.

[0037] FIG. 3 is a diagram showing a cross-sectional example of the tire 2 mounted on a vehicle. The portion where the tire 2 contacts the road surface is called a tread 2A, and the tread 2A is provided with grooves 2C for removing water on a wet road surface and preventing slip when driving force or braking force acts. For example, when the tread 2A steps on a rock on the road surface, the belt 2B stretched between the tread 2A and the carcass 2D may be damaged, and the tread 2A and the belt 2B may peel off. When the vehicle continues to step on a rock on the road surface, heat is generated due to the deformation of the tread 2A, and heat is stored in the space generated between the tread 2A and the belt 2B due to the peeling, the temperature of the space rises, and the tread 2A may crack or the tread 2A may smoke.

[0038] That is, in order to detect the possibility of damage to the tire 2 due to heat, it is preferable to measure the temperature of the belt 2B (also referred to as the "tread temperature"). For this purpose, for example, there is a method of inserting a temperature sensor 14 (see FIG. 4) between the tread 2A and the belt 2B. However, in this method, it is necessary to consider the power supply method to the temperature sensor 14, the load-bearing performance of the temperature sensor 14, and the influence of the temperature sensor 14 on the tread 2A and the belt 2B. Inserting the temperature sensor 14 between the tread 2A and the belt 2B often requires technical countermeasures and is also a costly method. When the method of arranging the temperature sensor between the belts is not used, it is conceivable to use a TPMS. The acquisition unit 1A in FIG. 2 acquires, from the vehicle through a communication line, the temperature of the interior 2E of the tire 2 shown in FIG. 3 (also referred to as the "chamber temperature") measured by the TPMS mounted on the rim of the tire 2. The chamber temperature acquired from the vehicle as described above is set as the in-tire temperature acquired by the acquisition unit 1A.

[0039] The acquisition unit 1A calculates a calculated value indicating the ease of heat generation during the previous driving using the in-tire temperature and outside air temperature data for each time during driving, and stores the calculated calculated value in the data storage unit 1M as the heat generation history at each time.

[0040] The air temperature prediction information is acquired, for example, using an outside air temperature prediction model. The outside air temperature prediction model is a model created, for example, from the annual outside air temperature data of the environment in which the vehicle travels. The outside air temperature prediction model may be held inside the information processing device 1 or held in an external server and referred to each time the air temperature prediction information is acquired.

[0041] In addition, the acquisition unit 1A may further acquire the position information of the tire 2, the internal pressure information of the tire 2, and the vehicle speed information as information acquired retroactively from a reference time point. In addition, the acquisition unit 1A may acquire the loading amount of the luggage loaded on the vehicle equipped with the tire 2. The in-tire temperature, outside air temperature data, position information of the tire 2, internal pressure information of the tire 2, vehicle speed information, and loading amount, etc. are examples of tire information.

[0042] The prediction unit 1B predicts the arrival time from the reference time until the tire internal temperature reaches the second temperature based on the tire information, the temperature prediction information, and the heat generation history. For the time from the reference time until reaching the second temperature, an estimation formula using the history of the tire internal temperature, the heat generation history, and the predicted temperature during the retrospectively acquired period is determined in advance, and the tire internal temperature for each future time may be calculated from the estimation formula. Any regression method can be used for the estimation formula.

[0043] Note that the prediction method for the arrival time from the reference time until reaching the second temperature is not limited to the estimation formula, and a simulation model using machine learning may also be used. For learning the simulation model, for example, learning data in which the tire internal temperature at the reference time is associated as output data with input data including at least any one of the tire information, the temperature prediction information, and the heat generation history before the reference time is used. The tire information used as the input data includes any information among the tire internal temperature, the position information of tire 2, the generated force (G sensor) information, the internal pressure information of tire 2, and the vehicle speed information. Note that it is preferable that the input data includes at least the tire internal temperature. The prediction unit 1B learns the simulation model in advance using the above learning data, and inputs the information used as the input data of the model among the tire information, the temperature prediction information, and the heat generation history during the period retroactively from the reference time by a predetermined time into the simulation model, and uses the tire internal temperature for each time output from the simulation model to predict the arrival time from the reference time until the tire internal temperature reaches the second temperature. Note that by including weather information in the input data of the learning data, for example, the cooling or heat generation effect on tire 2 can be considered. For example, by considering the cooling effect when wet by rain, the cooling effect due to the wet road surface after the rain stops, the cooling effect due to wind, etc., and the heat generation due to sunlight, the prediction accuracy of the arrival time can be further improved.

[0044] Furthermore, as a simulation model, a route prediction model capable of predicting the temperature inside the tire for each driving route, an outside air temperature prediction model capable of predicting the outside air temperature, a weather prediction model, and a detection model capable of detecting the presence or absence of loading on the vehicle may also be used. When using the temperature prediction model for each driving route, the temperature prediction model may be pre-trained using tire information acquired for each driving route as learning data. When using the detection model for the presence or absence of loading, the detection model may be pre-trained using the weight of the vehicle with the presence or absence of loading labeled as learning data. Note that the detection model may also be trained for each driving route.

[0045] The control unit 1C performs control to change the notification form of an alarm that notifies the control entity of the vehicle of the increase in the temperature inside the tire according to the arrival time predicted by the prediction unit 1B. Specifically, when the control entity of the vehicle is the user, the control unit 1C performs control to change the notification form of the alarm so that the user can easily recognize the alarm as the arrival time to reach the second temperature from the reference time becomes shorter. That is, as the temperature inside the tire approaches the second temperature, the control unit 1C notifies the alarm while changing the notification form of the alarm so that the user can easily recognize that the temperature inside the tire is approaching the second temperature.

[0046] The information processing apparatus 1 shown in FIG. 2 is configured using, for example, a computer 10 as shown in FIG. 4. The computer 10 includes a CPU (Central Processing Unit) 10A which is an example of a processor, a RAM (Random Access Memory) 10B used as a temporary work area of the CPU 10A, a non-volatile memory 10C, and an input / output interface (I / O) 10D. The CPU 10A, the RAM 10B, the non-volatile memory 10C, and the I / O 10D are respectively connected via a bus 10E.

[0047] The CPU 10A is responsible for the processing of each functional unit shown in FIG. 2.

[0048] The non-volatile memory 10C is an example of a storage device that maintains the stored information even when the power supplied to the non-volatile memory 10C is cut off. For example, a semiconductor memory is used, but a hard disk may also be used. Information that needs to be continuously stored even when the power of the information processing device 1 is cut off, such as the first temperature and the second temperature, is stored in the non-volatile memory 10C. Further, the non-volatile memory 10C functions as the data storage unit 1M in FIG. 2, and various types of information are stored therein.

[0049] Note that the non-volatile memory 10C does not necessarily have to be built into the computer 10, and it may be, for example, a portable storage device that is detachable from the computer 10.

[0050] Connected to the I / O 10D are, for example, a communication unit 11, an input unit 12, a display unit 13, and a temperature sensor 14.

[0051] The communication unit 11 is connected to a communication line and has a communication protocol for transmitting and receiving data with an external device connected to the communication line. For example, when the information processing device 1 is installed in an operation management room, the information processing device 1 performs data communication with each vehicle through a wireless line, which is an example of the communication line connected to the communication unit 11. Further, for example, when the information processing device 1 is installed in a vehicle, the information processing device 1 performs data communication with a server (not shown) installed in the operation management room through the wireless line connected to the communication unit 11, and the in-tire temperature of each tire 2 may be displayed on a monitor installed in the operation management room.

[0052] The input unit 12 is a device that receives a user's instruction and notifies the CPU 10A, and includes, for example, buttons, a touch panel, a mouse, a keyboard, and a pointing device.

[0053] The display unit 13 is an example of a display device that displays the information processed by the CPU 10A as an image, and includes, for example, a liquid crystal display, an organic EL (Electro Luminescence) display, or the like. For example, when the information processing device 1 is installed in a vehicle, the display unit 13 is used as a monitor inside the vehicle. Also, when the information processing device 1 is installed in an operation management room, the display unit 13 is used as a monitor inside the operation management room.

[0054] A plurality of temperature sensors 14 are connected to the I / O 10D. For example, the first temperature sensor 14 is a TPMS, which is attached to the rim of each tire 2 and measures the temperature inside the tire. Also, the second temperature sensor 14 is an air thermometer, which measures the outside air temperature around the vehicle. Note that when the information processing device 1 is installed in an operation management room, there is no need to connect the temperature sensor 14 to the I / O 10D, and the measured values by the temperature sensors 14 attached to each vehicle are transmitted to the information processing device 1 through the communication unit 11.

[0055] <Alarm Processing> Next, the operation of the information processing device 1 according to the first embodiment will be described. FIG. 5 is a flowchart showing an example of the flow of alarm processing according to the first embodiment. The CPU 10A of the information processing device 1 reads an information processing program stored in the non-volatile memory 10C and expands it in the RAM 10B to execute alarm processing.

[0056] As an example, the flow of alarm processing when the information processing device 1 is installed in each vehicle will be described. However, the information processing device 1 may be installed in an operation management room, and the information processing device 1 may execute alarm processing for a plurality of vehicles collectively.

[0057] It is assumed that the non-volatile memory 10C functioning as the data storage unit 1M stores tire information, temperature prediction information, and heat generation history acquired before the reference time point in advance.

[0058] First, in step S100, the CPU 10A acquires the in-tire temperature through the temperature sensor 14. That is, the in-tire temperature acquired in step S100 becomes the in-tire temperature at the reference time point.

[0059] In step S110, the CPU 10A determines whether the in-tire temperature acquired in step S100 is equal to or higher than the first temperature. If the in-tire temperature is lower than the first temperature, the process proceeds to step S190, which will be described later. On the other hand, if the in-tire temperature is equal to or higher than the first temperature, the process proceeds to step S120.

[0060] In step S120, the CPU 10A further determines whether the in-tire temperature acquired in step S100 is equal to or higher than the second temperature. If the in-tire temperature is equal to or higher than the second temperature, it means that the risk of failure of tire 2 has exceeded a specific level. Therefore, it is preferable to immediately stop the vehicle to lower the in-tire temperature. Accordingly, the process proceeds to step S170. In step S170, the CPU 10A outputs a level 3 warning. The level 3 warning is displayed on the display unit 13 by the CPU 10A controlling the display unit 13. When the vehicle is an autonomous driving vehicle, the CPU 10A outputs a level 3 warning to the automatic control device attached to the autonomous driving vehicle, for example, through the communication unit 11. The automatic control device that receives the level 3 warning immediately stops the vehicle to lower the in-tire temperature. That is, the automatic control device performs control to autonomously drive the vehicle according to the level of the warning. Note that when the vehicle is an autonomous driving vehicle, the CPU 10A may or may not output various warnings to the display unit 13.

[0061] The level 3 warning is a warning to inform the vehicle control entity that the in-tire temperature has reached or exceeded the second temperature. Among the level 1 warning and the level 2 warning, which will be described later, it is the warning that most strongly urges the vehicle control entity to perform control to lower the in-tire temperature. Therefore, when the vehicle control entity is the user, the level 3 warning is displayed in a form that is more easily recognizable by the user than the level 1 warning and the level 2 warning.

[0062] FIG. 6 is a diagram showing an example of a level 3 warning. The level 3 warning displays the background color of the warning icon 3, which notifies, for example, the situation of the in-tire temperature, in red. The reason for displaying the warning icon 3 of the level 3 warning in red is generally that red is considered the most attention-grabbing color among various colors. Therefore, when another color is considered to be more attention-grabbing than red, the warning icon 3 of the level 3 warning may be displayed using another color (for example, purple, etc.).

[0063] Also, in order for the user to easily recognize the warning icon 3, the CPU 10A may perform control to blink the warning icon 3. Blinking the warning icon 3 means, for example, alternately displaying the warning icon 3 in different display forms such as differences in color. As shown in FIG. 6, the three straight lines existing on each side of the warning icon 3 represent that the warning icon 3 is blinking. Such a warning icon 3 is an example of a display area for displaying the in-tire temperature, and each of the background color of the warning icon 3 and the color of the line representing the warning icon 3 is an example of the display color of the display area for displaying the in-tire temperature. Hereinafter, the color of the figure or character constituting the warning icon 3 may be referred to as the "display color of the warning icon 3".

[0064] Note that, as shown in FIG. 6, the in-tire temperature acquired in step S100 (displayed as "Tp2°C" in the example of FIG. 6) and the time to reach the second temperature (displayed as "0" in the example of FIG. 6) may be displayed together on the warning icon 3. As shown in FIG. 6, when the in-tire temperature acquired in step S100 has already reached the second temperature, the CPU 10A displays the time to reach as "0".

[0065] After outputting the level 3 warning in step S170 of FIG. 5, the process proceeds to step S190, which will be described later. On the other hand, in the determination process of step S120, when it is determined that the in-tire temperature acquired in step S100 is less than the second temperature, the process proceeds to step S130.

[0066] In this case, the in-tire temperature at the reference time is a temperature that is equal to or higher than the first temperature and lower than the second temperature. Thus, when the in-tire temperature at the reference time is equal to or higher than the first temperature and lower than the second temperature, in step S130, the CPU 10A executes a prediction process of predicting the time until the in-tire temperature reaches the second temperature. Details of the prediction process in step S130 will be described later.

[0067] In step S140, the CPU 10A determines whether or not the arrival time predicted in the prediction process of step S130 is equal to or less than the time T2. The time T2 is a time set as a starting point at which it is considered that the vehicle control entity should start to be aware that a situation where the in-tire temperature reaches the second temperature may occur if the vehicle continues to run as it is. For example, it is a time pre-stored in the non-volatile memory 10C. The time T2 is a time preset by the vehicle control entity, and the set time T2 is modifiable.

[0068] When the predicted arrival time exceeds the time T2, since there is sufficient time until the in-tire temperature reaches the second temperature, the vehicle control entity is still in a situation where it may continue to run without being aware of the in-tire temperature. Therefore, the CPU 10A proceeds to step S190, which will be described later, without outputting an alarm. On the other hand, when the predicted arrival time is equal to or less than the time T2, it proceeds to step S150.

[0069] In step S150, the CPU 10A further determines whether or not the arrival time predicted in the prediction process of step S130 is equal to or less than the time T1. The time T1 is a time set as a time at which it is considered that the vehicle control entity should start to be aware of driving the vehicle in such a way that the in-tire temperature will probably not reach the second temperature soon. For example, it is a time pre-stored in the non-volatile memory 10C. There is a relationship of T1 < T2 between the time T1 and the time T2. The time T1 is a time preset by the vehicle control entity, and the set time T1 is modifiable.

[0070] Note that when the time T1 is set to a value close to the time T2, the interval from when the arrival time becomes less than or equal to the time T2 until the arrival time further becomes less than or equal to the time T1 becomes shorter. Therefore, it is preferable to set the time T1 to, for example, a value that is 1 / 2 of the time T2.

[0071] When the arrival time predicted in the prediction process of step S130 is less than or equal to the time T1, the process proceeds to step S180. In this case, although there is no urgency to immediately stop the vehicle to lower the tire internal temperature, it is necessary to consciously cause the vehicle control entity to drive the vehicle so that the tire internal temperature does not reach the second temperature. Therefore, in step S180, the CPU 10A outputs a level 2 warning. As an example, the level 2 warning is displayed on the display unit 13 by the CPU 10A controlling the display unit 13. When the vehicle is an autonomous driving vehicle, the CPU 10A outputs the arrival time at which the tire internal temperature reaches the second temperature and the level 2 warning to the automatic control device attached to the autonomous driving vehicle, for example, through the communication unit 11. The automatic control device that has received the level 2 warning autonomously controls the driving of the vehicle so that the tire internal temperature does not reach the second temperature based on the arrival time at which the tire internal temperature reaches the second temperature. Note that transmitting the level 3 warning to the automatic control device by the process of step S170 corresponds to transmitting to the automatic control device that the arrival time at which the tire internal temperature reaches the second temperature is "0".

[0072] As can be understood from the above-described object, for the vehicle control entity, the level 2 warning is one level lower than the level 3 warning and does not have as much urgency as the level 3 warning.

[0073] FIG. 7 is a diagram showing an example of the level 2 warning displayed on the display unit 13. The level 2 warning does not make the background color of the warning icon 3 red as in the level 3 warning shown in FIG. 6, and for example, only the color of the line representing the warning icon 3 is displayed in red. In FIG. 7, "α2 °C" represents the tire internal temperature acquired in step S100. The subscript n (n is an integer of 1 or more) following α represents the time series order in which the tire internal temperature was acquired. Specifically, α nThe larger the value of n is in [the above situation], the later the acquired tire internal temperature is indicated.

[0074] Note that the CPU 10A may set the display color of the warning icon 3 in the level 2 warning to a color different from the display color of the warning icon 3 in the level 3 warning. For example, the warning icon 3 in the level 2 warning may be displayed in orange, which is considered a color that can easily draw the user's attention after red.

[0075] After outputting the level 2 warning in step S180 of FIG. 5, the process proceeds to step S190 described later. On the other hand, in the determination process of step S150, if it is determined that the arrival time predicted in the prediction process of step S130 exceeds the time T1, the process proceeds to step S160.

[0076] In this case, the predicted arrival time exceeds the time T1 and is included in the range of not exceeding the time T2. That is, there is not such an urgency that the vehicle control entity is consciously made to drive the vehicle so that the tire internal temperature does not reach the second temperature, but it is a situation where it is better to direct attention to the tire internal temperature. Therefore, in step S160, the CPU 10A outputs a level 1 warning. As an example, the level 1 warning is displayed on the display unit 13 by the CPU 10A controlling the display unit 13. When the vehicle is an autonomous driving vehicle, the CPU 10A outputs the arrival time when the tire internal temperature reaches the second temperature and the level 1 warning to the automatic control device attached to the autonomous driving vehicle, for example, through the communication unit 11. The automatic control device that has received the level 1 warning autonomously controls the driving of the vehicle so that the tire internal temperature does not reach the second temperature based on the arrival time when the tire internal temperature reaches the second temperature.

[0077] FIG. 8 is a diagram showing an example of a level 1 warning displayed on the display unit 13. As can be understood from the above-described object, for the vehicle control entity, the level 1 warning is one level lower than the level 2 warning and is not as urgent as the level 2 warning. Therefore, the CPU 10A may display the display color of the warning icon 3 in the level 1 warning in a color different from the respective warning icons 3 in the level 2 warning and the level 3 warning, and in a color that is likely to attract the user's attention (for example, yellow). After outputting the level 1 warning, the process proceeds to step S190 in FIG. 5 described later.

[0078] In step S190, the CPU 10A determines whether an end instruction for the warning process has been received from the vehicle control entity. If the end instruction for the warning process has not been received, the process proceeds to step S200.

[0079] In step S200, the CPU 10A waits until a predetermined time has elapsed and adjusts the acquisition interval of the in-tire temperature in step S100. Specifically, the CPU 10A controls the acquisition interval of the in-tire temperature so that the longer the arrival time to reach the second temperature, the longer the interval until the in-tire temperature is newly acquired in step S100, and then the process proceeds to step S100.

[0080] The longer the arrival time, the more time margin occurs until the tire internal temperature reaches the second temperature. On the other hand, the shorter the arrival time, the higher the probability that the tire internal temperature reaches the second temperature. Therefore, in order to prevent the tire internal temperature from becoming equal to or higher than the second temperature as much as possible, the acquisition interval of the tire internal temperature may be set according to the situation where the tire internal temperature approaches the second temperature, and the prediction of the arrival time may be repeated at the acquisition interval. However, when the acquisition interval of the tire internal temperature is set according to the situation where the tire internal temperature approaches the second temperature, in a situation where the tire internal temperature is closer to the first temperature than the second temperature, the acquisition of the tire internal temperature and the prediction of the arrival time are performed at an interval longer than necessary, which imposes a load on the CPU 10A. Therefore, the CPU 10A controls the acquisition interval of the tire internal temperature so that the interval until a new tire internal temperature is acquired becomes longer as the arrival time becomes longer, thereby reducing the load rate of the CPU 10A compared to the case where the acquisition interval of the tire internal temperature is set to a fixed value regardless of the value of the arrival time.

[0081] The CPU 10A repeatedly executes the processes of steps S100 to S200 until it is determined by the determination process in step S190 that an end instruction for the warning process has been received from the vehicle control entity. When the CPU 10A determines by the determination process in step S190 that an end instruction for the warning process has been received from the vehicle control entity, the warning process shown in FIG. 5 is ended.

[0082] As described above, control is performed to change the notification form of a warning that notifies the vehicle control entity of the rise in the tire internal temperature according to the arrival time when the tire internal temperature reaches the second temperature.

[0083] Note that the CPU 10A may perform control to change at least one of the presence or absence of blinking and the blinking interval of the warning icon 3 displayed on the display unit 13 according to the predicted arrival time. For example, the CPU 10A may cause the warning icon 3 in the level 1 warning not to blink, and cause the warning icon 3 in the level 2 warning to blink. When causing the warning icon 3 in the level 2 warning to blink, the CPU 10A may perform control to shorten the blinking interval of the warning icon 3 as the predicted arrival time becomes shorter than the first time.

[0084] For example, as shown in FIG. 9, the CPU 10A may blink the warning icon 3 by alternately displaying and erasing the frame of the warning icon 3. Naturally, not only the frame of the warning icon 3 but also the entire warning icon 3 may be blinked by alternately displaying and erasing it.

[0085] Also, for example, when displaying the warning icon 3 in the level 2 warning, the CPU 10A may control the display of the warning icon 3 so that the filled area of the background color of the warning icon 3, that is, the filled area of the warning icon 3, increases as the predicted arrival time becomes shorter.

[0086] FIG. 10 is a diagram showing an example of a change in the filled area of the warning icon 3 according to the arrival time. In FIG. 10, k represents a predetermined unit time shorter than the time T1, and mk (m is an integer of 1 or more) represents a multiple of the unit time k. That is, FIG. 10 shows display examples of each warning icon 3 at predicted arrival times of T1, T1 - k, T1 - 2k, 0, and -k. The arrival time of "-k" indicates the time point after the unit time k has elapsed since the tire internal temperature reached the second temperature. That is, in FIG. 10, the warning icons 3 with predicted arrival times of T1, T1 - k, and T1 - 2k represent the warning icon 3 in the level 2 warning, and the warning icons 3 with predicted arrival times of 0 and -k represent the warning icon 3 in the level 3 warning. Note that in FIG. 10, the temperature α5°C of the warning icon 3 at the arrival time of 0 becomes Tp2°C.

[0087] In the example shown in FIG. 10, when the arrival time is T1, the warning icon 3 is not filled, and as the arrival time approaches 0, the filled area of the warning icon 3 increases, and when the arrival time reaches 0, it represents the state where the entire warning icon 3 is filled. For filling the warning icon 3, filling using a gradient in which the background color changes step by step in the filling direction may be applied.

[0088] In the example shown in FIG. 10, the warning icon 3 is filled from bottom to top, but there is no restriction on the filling direction of the warning icon 3. For example, it may be filled from left to right, or from the upper left diagonally to the lower right diagonally.

[0089] Further, the CPU 10A may perform control to change the size of the warning icon 3 according to the arrival time. Specifically, the CPU 10A may display the warning icon 3 larger as the predicted arrival time becomes shorter. The larger the warning icon 3 is displayed, the easier it is for the driver, vehicle operation manager, etc. to recognize the warning.

[0090] As shown in FIG. 10, when the current time has already passed the predicted arrival time, that is, when the arrival time is -k, the CPU 10A may display the background color of the warning icon 3 in a color different from the background color of the warning icon 3 when the arrival time is 0.

[0091] Further, in addition to the change in the filled area of the warning icon 3 according to the arrival time, the CPU 10A may control the presence or absence of blinking of the warning icon 3. In the example shown in FIG. 10, the CPU 10A does not blink the warning icon 3 in the level 2 warning, but blinks the warning icon 3 in the level 3 warning. When blinking the warning icon 3 in the level 3 warning, the CPU 10A may perform control to shorten the blinking interval of the warning icon 3 as the duration during which the in-tire temperature continues to be equal to or higher than the second temperature becomes longer after the in-tire temperature reaches the second temperature.

[0092] Furthermore, the CPU 10A may perform control to output an alarm sound of a size corresponding to the level of the alarm from a speaker (not shown) together with the display of the alarm icon 3 on the display unit 13. For example, the CPU 10A may output an alarm sound from the speaker that gradually increases as the level of the alarm progresses from a level 1 alarm, a level 2 alarm, to a level 3 alarm. Also, for example, the CPU 10A may not output an alarm sound for a level 1 alarm and a level 2 alarm, and may output an alarm sound in the case of a level 3 alarm.

[0093] Also, in step S120 of the alarm process shown in FIG. 5, it was determined whether or not the tire internal temperature acquired in step S100 was equal to or higher than the second temperature. However, the CPU 10A may determine whether or not the tire internal temperature is equal to or higher than a temperature set by shifting the second temperature by a predetermined temperature (hereinafter referred to as "margin temperature") from the second temperature. In the prediction process of step S130, when predicting the tire internal temperature at a future time from the acquired tire internal temperature, the predicted tire internal temperature includes a prediction error. However, by correcting the second temperature in advance by a temperature corresponding to the prediction error and predicting the arrival time using the corrected second temperature, the arrival time at which the second temperature is reached can be predicted more accurately than predicting the arrival time using the second temperature before correction. Therefore, in step S120, it is preferable that the CPU 10A compares the corrected second temperature shifted by the margin temperature corresponding to the prediction error of the prediction process with the acquired tire internal temperature.

[0094] The margin temperature is calculated from the distribution of the difference between the acquired tire internal temperature and the predicted tire internal temperature, which is the predicted value of the tire internal temperature at the time when the tire internal temperature was acquired. For example, if a tendency is recognized that the predicted value of the tire internal temperature in the prediction process deviates by about ±δ°C from the actual tire internal temperature from the distribution of the difference between the acquired tire internal temperature and the predicted tire internal temperature predicted in advance for the tire internal temperature, δ may be set as the margin temperature.

[0095] In addition, when the second temperature is corrected using the margin temperature, in the prediction process of step S130, the arrival time at which the acquired tire internal temperature reaches the corrected second temperature is predicted.

[0096] By correcting the second temperature using the margin temperature, compared with the case where the second temperature is not corrected, the case where it is predicted that the tire internal temperature is still less than the second temperature even though the tire internal temperature actually becomes equal to or higher than the second temperature is reduced.

[0097] <Prediction process> Next, the prediction process in step S130 of the warning process shown in FIG. 5 will be described. FIG. 11 is a flowchart showing an example of the flow of the prediction process in step S130 of the warning process shown in FIG. 5.

[0098] First, in step S10, the CPU 10A acquires tire information and outside air temperature data for a period retroactively from a predetermined time from the time when the tire internal temperature was acquired in step S100 of FIG. 5, that is, the reference time point.

[0099] In step S12, the CPU 10A acquires future temperature prediction information and heat generation history during running.

[0100] In step S14, the CPU 10A predicts the arrival time from the reference time point until the tire internal temperature reaches the second temperature based on the tire information, temperature prediction information, and heat generation history. Thus, the prediction process shown in FIG. 11 is completed.

[0101] As described above, according to the information processing apparatus 1 according to the first embodiment, when the tire internal temperature of the vehicle is equal to or higher than the first temperature, the notification form of the warning for notifying the rise in the tire internal temperature is changed according to the predicted time until the tire internal temperature reaches the second temperature, and a warning is given to the control entity of the vehicle to prompt attention.

[0102] <Modification example of the information processing apparatus 1> Next, a modified example of the information processing apparatus 1 shown in the first embodiment will be described. The functional configuration example of the information processing apparatus 1 according to the modified example is the same as that in FIG. 2, and is realized using the computer 10 having the configuration shown in FIG. 4.

[0103] The acquisition unit 1A according to the modified example appropriately acquires tire information and outside air temperature data for use in prediction at necessary timings and for a defined period. Also, similar to the first embodiment, the tire internal temperature during the most recent driving, future temperature prediction information, and heat generation history during driving are acquired.

[0104] The prediction unit 1B according to the modified example predicts the temperature that will be reached after a lapse of a predetermined time based on the tire information, temperature prediction information, and heat generation history. Thereby, the transition of the predicted temperature after a lapse of a future predetermined time can be acquired. The prediction method may use the same method as in the first embodiment. Also, in the prediction unit 1B according to the modified example, the prediction of the tire internal temperature may be updated in real time. Further, the prediction unit 1B according to the modified example may predict a plurality of tire internal temperatures using the above data for periods going back a plurality of different times.

[0105] Also, the prediction unit 1B according to the modified example may set an arbitrary period and interval, and perform a prediction such that the transition of the predicted temperature is extracted and predicted from an arbitrary period within a period going back a predetermined time. For example, when it is desired to confirm the failure possibility as accurately as possible, a countermeasure such as extracting only the section where the prediction result is the most severe from past data and performing a prediction can be taken.

[0106] Also, the prediction unit 1B according to the modified example may predict the tire internal temperature with a prediction width such as 1σ to -1σ as a statistical margin of error. "σ" is the standard deviation of the predicted value.

[0107] FIG. 12 is a diagram showing an example of predicting the tire internal temperature after a predetermined period of time in the future considering the prediction width. The solid line of "d1" in FIG. 12 shows the history of the measured tire internal temperature, and the broken line of "d2" shows the temperature prediction line of the tire internal temperature over time in the future. In this case, the temperature prediction line d2 of the tire internal temperature may vary within a prediction width with 1σ as the upper limit and -1σ as the lower limit.

[0108] Next, the operation of the information processing apparatus 1 according to the modification example will be described. FIG. 13 is a flowchart showing a modification example of the prediction process in step S130 of the alarm process shown in FIG. 5.

[0109] First, in step S20, the CPU 10A acquires tire information, outside air temperature data, future air temperature prediction information, and heat generation history during traveling for use in prediction.

[0110] In step S22, the CPU 10A acquires the tire internal temperature.

[0111] In step S24, the CPU 10A predicts the tire internal temperature reaching after a predetermined period of time from the reference time point for each time after the reference time point based on the tire internal temperature, tire information, outside air temperature data, air temperature prediction information, and heat generation history. The time when the predicted temperature becomes the second temperature is time T2.

[0112] Thus, according to the prediction process according to the modification example, by predicting the temperature after a predetermined period of time from the reference time point, the time when the tire internal temperature reaches the second temperature is predicted.

[0113] In the above-described embodiment, when the vehicle is an autonomous vehicle, the information processing device 1 transmits the warning level and the time until the tire internal temperature reaches the second temperature to the automatic control device attached to the vehicle. An example is shown in which the automatic control device that has received the warning level and the arrival time performs control to autonomously drive the vehicle so that the tire internal temperature is less than the second temperature according to the received warning level and arrival time. However, the information processing device 1 may function as an automatic control device.

[0114] In this case, the control unit 1C shown in FIG. 2 functions as an automatic control device. The control unit 1C autonomously controls the running of the vehicle so that the tire internal temperature is less than the second temperature, for example, according to at least one of the arrival time until the tire internal temperature reaches the second temperature and the warning level. Such processing of the control unit 1C is executed by the CPU 10A.

[0115] For example, when a level 3 warning is output, the CPU 10A immediately stops the vehicle and autonomously reduces the tire internal temperature to less than the second temperature. Also, when a level 2 warning and a level 1 warning are output, the CPU 10A autonomously controls the running of the vehicle based on the arrival time until the tire internal temperature reaches the second temperature so that the tire internal temperature does not reach the second temperature.

[0116] As described above, one form of the information processing device 1 has been described using the embodiment, but the disclosed form is an example, and the form of the information processing device 1 is not limited to the scope described in the embodiment. Various changes or improvements can be made to the embodiment without departing from the gist of the present disclosure, and the form of the information processing device 1 to which such changes or improvements are made is also included in the technical scope of the disclosure.

[0117] In the above-described embodiment, as an example, the form in which the alarm processing shown in FIG. 5 is realized by software has been described. However, the processing equivalent to the flowchart of the alarm processing may be executed by hardware. In this case, the processing speed can be increased as compared with the case where the alarm processing is realized by software. Also, the processing flow in the alarm processing is an example, and unnecessary processing may be deleted, new processing may be added, or the processing order may be changed within the range not departing from the gist.

[0118] Also, in the above-described embodiment, an example in which the information processing program is stored in the non-volatile memory 10C has been described. However, the storage destination of the information processing program is not limited to the non-volatile memory 10C. The information processing program can also be provided in a form recorded on a computer-readable storage medium.

[0119] For example, the information processing program may be provided in a form recorded on an optical disk such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), and a Blu-ray disk. Also, the information processing program may be provided in a form recorded on a portable semiconductor memory such as a USB (Universal Serial Bus) memory and a memory card. The non-volatile memory 10C, CD-ROM, DVD-ROM, Blu-ray disk, USB, and memory card are examples of non-transitory storage media.

[0120] Furthermore, the CPU 10A may download the information processing program from an external device through the communication unit 11 and store the downloaded information processing program in the non-volatile memory 10C.

[0121] In the embodiment, the CPU 10A is used as an example of a general-purpose processor. However, in the embodiment, the processor refers to a processor in a broad sense, and includes, in addition to a general-purpose processor such as the CPU 10A, a dedicated processor (for example, GPU: Graphics Processing Unit, ASIC: Application Specific Integrated Circuit, FPGA: Field Programmable Gate Array, programmable logic device, etc.).

[0122] In addition, the operation of the processor in each of the above-described embodiments may be achieved not only by one processor but also by a plurality of processors cooperating with each other, or may be achieved by a plurality of physically separated processors cooperating with each other.

[0123] All documents, patent applications, and technical standards described in this specification are incorporated herein by reference to the same extent as if each individual document, patent application, and technical standard were specifically and individually stated to be incorporated by reference.

[0124] [Contribution to the Sustainable Development Goals (SDGs) led by the United Nations] The SDGs have been proposed towards the realization of a sustainable society. One embodiment of the present invention can be considered as a technology that contributes to "No. 9 - Build the foundation of industry and technological innovation", etc.

Description of reference numerals

[0125] 1 Information processing apparatus 1A Acquisition unit 1B Prediction unit 1C Control unit 1M Data storage unit 2 Tire 2A Tread 2B Belt 2C Groove 2D Carcass 2E Inside of the tire 3 Warning icon 10 Computer 10A CPU 10B RAM 10C Non-volatile memory 10D I / O 10E Bus 11 Communication unit 12 Input unit 13 Display unit 14 Temperature sensor

Claims

1. An acquisition unit that acquires the in-tire temperature; When the in-tire temperature acquired by the acquisition unit is equal to or higher than a predetermined first temperature, a control unit that performs control to change the notification form of an alarm that notifies the user of the rise in the in-tire temperature according to the predicted time until the in-tire temperature reaches a second temperature set to a temperature higher than the first temperature; An information processing apparatus comprising the above.

2. The control unit performs control to change the notification form of the alarm so that the user can easily recognize the alarm as the predicted time becomes shorter. The information processing apparatus according to Claim 1.

3. The control unit performs control to change the display color of a display area that displays the in-tire temperature according to the predicted time. The information processing apparatus according to Claim 2.

4. The control unit performs control to change at least one of the presence or absence of blinking and the blinking interval of a display area that displays the in-tire temperature according to the predicted time. The information processing apparatus according to Claim 2.

5. When the predicted time is within a predetermined first time, the control unit starts blinking the display area, and controls to shorten the blinking interval of the display area as the predicted time becomes shorter than the first time. The information processing apparatus according to Claim 4.

6. The control unit controls the display of the display area that displays the in-tire temperature with a predetermined display color so that the filled area of the display area increases as the predicted time becomes shorter. The information processing apparatus according to Claim 2.

7. The control unit controls the acquisition unit so that the interval until the in-tire temperature is newly acquired becomes longer as the predicted time becomes longer. The information processing apparatus according to Claim 1.

8. The control unit performs control to display the predicted time together with the alarm. The information processing apparatus according to any one of Claims 1 to 7.

9. The second temperature is a temperature set by shifting a predetermined temperature from a dangerous temperature at which the risk of tire failure exceeds a specific level when the tire in which the in-tire temperature is acquired continues to run. The information processing apparatus according to any one of Claims 1 to 7.

10. The predetermined temperature is a temperature calculated from the distribution of the difference between the in-tire temperature and the predicted in-tire temperature, which is the predicted value of the in-tire temperature at the time when the in-tire temperature is acquired. The information processing apparatus according to Claim 9.

11. Obtain the temperature inside the tire, when the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, the computer executes a process of changing the notification form of an alarm that notifies the user of the increase in the temperature inside the tire according to the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature Information processing method.

12. For a computer, obtain the temperature inside the tire, when the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, the computer executes a process of changing the notification form of an alarm that notifies the user of the increase in the temperature inside the tire according to the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature Information processing program.

13. An acquisition unit that acquires the temperature inside the tire of a vehicle, when the temperature inside the tire acquired by the acquisition unit is equal to or higher than a predetermined first temperature, a control unit that transmits the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature to an automatic control device that autonomously controls the running of the vehicle so that the temperature inside the tire is less than the second temperature An information processing device comprising the above.

14. Obtain the temperature inside the tire of a vehicle, when the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, the computer executes a process of transmitting the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature to an automatic control device that autonomously controls the running of the vehicle so that the temperature inside the tire is less than the second temperature Information processing method.

15. For a computer, obtain the temperature inside the tire of a vehicle, when the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, the computer executes a process of causing the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature to be transmitted to an automatic control device that autonomously controls the running of the vehicle so that the temperature inside the tire is less than the second temperature Information processing program.

16. An acquisition unit that acquires the temperature inside the tire of a vehicle, when the temperature inside the tire acquired by the acquisition unit is equal to or higher than a predetermined first temperature, a control unit that autonomously controls the running of the vehicle so that the temperature inside the tire is less than the second temperature according to the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature An information processing device comprising the above.

17. Obtain the temperature inside the tire of the vehicle, When the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, the computer executes a process of autonomously controlling the running of the vehicle so that the temperature inside the tire becomes lower than the second temperature according to the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature. An information processing method.

18. Obtain the temperature inside the tire of the vehicle, When the obtained temperature inside the tire is equal to or higher than a predetermined first temperature, for autonomously controlling the running of the vehicle so that the temperature inside the tire becomes lower than the second temperature according to the predicted time until the temperature inside the tire reaches a second temperature set to a temperature higher than the first temperature. An information processing program.

Images