In-vehicle device and information provision system

Abstract

To provide an appropriate advice to a driver even in a case where communication cannot be performed.SOLUTION: An on-vehicle device comprises a dangerous driving information transmitting unit, a location information transmitting unit, an advice receiving unit and an accumulation unit. The dangerous driving information transmitting unit transmits to a server dangerous driving information that is information relating to dangerous driving by a driver of a vehicle. The location information transmitting unit transmits to the server location information of the vehicle when starting operation of the vehicle. The advice receiving unit receives from the server an environmental advice generated based on environment information that is information relating to an environment around a location indicated by the location information, and the dangerous driving information and an individual advice generated based on the dangerous driving information. The accumulation unit accumulates the individual advice in a storage unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an in-vehicle device and Providing information Regarding the system. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there is known a technique for providing advice based on dangerous driving information of a driver uploaded from a drive recorder and weather information of the area in which the vehicle driven by the driver is located. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-117315 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional technology has a problem in that appropriate advice may not be provided to the driver when communication is not possible.

[0005] For example, in the conventional technology, if a drive recorder is out of communication range in a place such as an underground parking lot, it may not be able to communicate with the server and therefore may not be able to provide advice to the driver.

[0006] The present invention has been made in view of the above, and provides a method for providing appropriate advice to a driver even when communication is not possible. And The purpose is. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the in-vehicle device according to the present invention has a dangerous driving information transmission unit, a position information transmission unit, an advice receiving unit, and a storage unit. The dangerous driving information transmission unit transmits dangerous driving information, which is information about dangerous driving by a driver of the vehicle, to a server. The position information transmission unit transmits vehicle position information to the server when the vehicle starts to operate. The advice receiving unit receives from the server environmental information, which is information about the environment around the position indicated by the position information, first advice generated based on the dangerous driving information, and second advice generated based on the dangerous driving information. The storage unit stores the second advice in a memory unit. Effect of the Invention

[0008] According to the present invention, appropriate advice can be provided to the driver even when communication is not possible. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram illustrating a diagnostic system according to an embodiment. [Diagram 2] FIG. 2 is a diagram illustrating the diagnostic system according to the embodiment. [Diagram 3] FIG. 3 is a diagram illustrating an example of the configuration of an in-vehicle device according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of advice output. [Diagram 5] FIG. 5 is a diagram showing an example of advice output. [Figure 6] FIG. 6 is a diagram illustrating an example of the configuration of a server according to the embodiment. [Figure 7] FIG. 7 is a sequence diagram showing a processing procedure of the diagnostic system according to the embodiment. [Figure 8] FIG. 8 is a sequence diagram showing a processing procedure of the diagnostic system according to the embodiment. [Figure 9] FIG. 9 is a sequence diagram showing a processing procedure of the diagnostic system according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of an in-vehicle device and a diagnostic system disclosed in the present application will be described in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiment described below.

[0011] First, the configuration and processing of a diagnostic system according to an embodiment will be described with reference to Fig. 1. Fig. 1 is a diagram illustrating a diagnostic system according to an embodiment.

[0012] 1, the diagnostic system 1 includes a vehicle V, an in-vehicle device 10, and a server 20. For example, the vehicle V is an automobile. Also, for example, the in-vehicle device 10 is a drive recorder provided inside the vehicle V.

[0013] The in-vehicle device 10 is also connected to a server 20 via a network N so as to be able to perform data communications therewith. For example, the network N is the Internet.

[0014] The battery of the in-vehicle device 10 is independent of the vehicle V. For example, the in-vehicle device 10 includes a battery such as a lithium-ion battery. However, the in-vehicle device 10 may be capable of receiving power and charging from an ACC power source or a cigarette lighter charger of the vehicle V.

[0015] Furthermore, the in-vehicle device 10 may be a device equivalent to an information processing device such as a smartphone that includes a sensor, a processor, a memory, and the like.

[0016] The in-vehicle device 10 provides driving advice to the driver of the vehicle V. The advice is provided by screen display, audio output, etc. In addition, the advice is generated by the server 20 and transmitted to the in-vehicle device 10.

[0017] The server 20 generates environmental advice based on dangerous driving information, which is information about dangerous driving by the driver of the vehicle V, and environmental information, which is information about the environment around the position of the vehicle V. The environmental advice is an example of a first advice.

[0018] Furthermore, the server 20 generates personalized advice based on the dangerous driving information. The personalized advice is an example of the second advice.

[0019] For example, the dangerous driving information is the frequency with which the driver performs dangerous driving such as sudden acceleration, sudden braking, sudden steering, etc. Also, for example, the environmental information is information regarding the weather around the vehicle V.

[0020] The environmental advice can be said to be advice that is generated by taking into consideration both unsafe driving information and environmental information.

[0021] For example, if the driver tends to frequently accelerate suddenly and it is snowing around the vehicle V, the server 20 can generate environmental advice to refrain from accelerating even more than usual.

[0022] On the other hand, the personal advice can be said to be advice that is generated by taking into consideration dangerous driving information without taking into consideration environmental information.

[0023] For example, if the driver normally tends to frequently accelerate suddenly, the server 20 can generate advice to refrain from accelerating suddenly as personal advice.

[0024] Here, if the vehicle-mounted device 10 cannot communicate with the server 20, the vehicle-mounted device 10 cannot receive advice from the server 20.

[0025] Therefore, in this embodiment, when the in-vehicle device 10 is unable to communicate with the server 20, the in-vehicle device 10 provides the driver with the advice last received from the server 20.

[0026] Although environmental advice may be more suited to the circumstances of the vehicle V and the driver than personal advice, it is not always useful.

[0027] For example, environmental advice received while it is snowing may not be useful after the snow has stopped.

[0028] On the other hand, personal advice is not affected by environmental factors such as the weather, and is therefore likely to always have some degree of usefulness.

[0029] For this reason, the vehicle-mounted device 10 stores the personal advice received from the server 20, and when communication with the server 20 cannot be performed, outputs the stored personal advice.

[0030] The flow of processing in the diagnostic system 1 will be described with reference to Fig. 1. Fig. 1 shows an example in which the in-vehicle device 10 has successfully received advice from the server 20.

[0031] As shown in FIG. 1, first, the vehicle-mounted device 10 collects dangerous driving information (step S11).

[0032] For example, the in-vehicle device 10 uses a camera and an acceleration sensor to collect information on the driver's sudden acceleration, sudden braking, and sudden steering as dangerous driving information.

[0033] Then, the in-vehicle device 10 transmits the collected dangerous driving information to the server 20 (step S12).

[0034] The processes up to this point are performed, for example, at regular intervals, regardless of the state of the vehicle V. In contrast, the processes thereafter are performed, for example, when the vehicle V starts operating.

[0035] When the vehicle V starts traveling, the in-vehicle device 10 transmits position information to the server 20 (step S13). Here, it is assumed that the in-vehicle device 10 has successfully received the environmental advice and the personal advice from the server 20 (step S14).

[0036] At this time, the vehicle-mounted device 10 stores the received personal advice (step S15), and outputs the received environmental advice (step S16).

[0037] The flow of processing in the diagnostic system 1 will be described with reference to Fig. 2. Fig. 2 shows an example in which the in-vehicle device 10 fails to receive advice from the server 20.

[0038] As shown in FIG. 2, first, the vehicle-mounted device 10 collects dangerous driving information (step S21).

[0039] For example, the in-vehicle device 10 uses a camera and an acceleration sensor to collect information regarding sudden acceleration, sudden braking, and sudden steering by the driver.

[0040] Then, the in-vehicle device 10 transmits the collected dangerous driving information to the server 20 (step S22).

[0041] 1, the processes up to this point are performed regardless of the state of the vehicle V. The processes that follow are performed, for example, when the vehicle V starts traveling.

[0042] When the vehicle V starts traveling, the in-vehicle device 10 transmits position information to the server 20 (step S23). Here, it is assumed that the in-vehicle device 10 has failed to receive the environmental advice and the personal advice from the server 20 (step S24).

[0043] At this time, the vehicle-mounted device 10 outputs the stored personal advice (step S25).

[0044] This allows the in-vehicle device 10 to output advice regardless of whether communication with the server 20 is successful.

[0045] In addition, the in-vehicle device 10 can determine that reception of advice from the server 20 has failed, for example, when the location information cannot be transmitted, when a relay device for connecting to the network N cannot be found, when advice has not been received even after a certain period of time has elapsed since the location information was transmitted, or when the driver performs an operation to cancel the reception of advice.

[0046] The configuration of the in-vehicle device 10 will be described with reference to Fig. 3. Fig. 3 is a diagram showing an example of the configuration of the in-vehicle device according to the embodiment.

[0047] As shown in FIG. 3, the in-vehicle device 10 includes an acceleration sensor 11a, a camera 11b, a position information receiving unit 11c, a communication unit 11d, and an output unit 11e.

[0048] The acceleration sensor 11a senses acceleration.

[0049] The camera 11b captures an image. For example, the camera 11b captures a moving image of the surroundings of the vehicle V.

[0050] The location information receiving unit 11c is a device for receiving signals such as a global navigation satellite system (GNSS) and a global positioning system (GPS).

[0051] The communication unit 11d is a communication module, and communicates with the server 20 via the network N. For example, the communication unit 11d can perform communication by using a bearer such as LTE (Long Term Evolution), Wi-Fi (registered trademark), and Bluetooth (registered trademark).

[0052] The control unit 13 and the storage unit 12 of the in-vehicle device 10 are realized by a computer having, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a flash memory, input / output ports, etc., or various circuits.

[0053] The storage unit 12 stores the individual advice information 121. The individual advice information 121 is individual advice generated by the server 20.

[0054] The individual advice information 121 is stored in a non-volatile area, so that the individual advice information 121 is retained even after the in-car device 10 is shut down.

[0055] The control unit 13 includes a collection unit 131 , a dangerous driving information transmission unit 132 , a position information transmission unit 133 , an advice reception unit 134 , a storage unit 135 , and an output control unit 136 .

[0056] The collection unit 131 collects dangerous driving information. The collection unit 131 collects, as dangerous driving information, the acceleration sensed by the acceleration sensor 11a and the image captured by the camera 11b when dangerous driving is performed.

[0057] The dangerous driving information transmission unit 132 transmits dangerous driving information, which is information regarding dangerous driving by the driver of the vehicle V, to the server 20.

[0058] That is, the dangerous driving information transmission unit 132 transmits the dangerous driving information collected by the collection unit 131 to the server 20.

[0059] Here, a case will be considered in which the timing at which the dangerous driving information transmitting unit 132 transmits the dangerous driving information to the server 20 is limited to when the vehicle V finishes traveling, or the like.

[0060] In this case, for example, if the vehicle V always ends its journey in a place outside the communication range, such as an underground parking lot, the collected dangerous driving information is never transmitted to the server 20.

[0061] Therefore, the dangerous driving information transmission unit 132 may transmit the dangerous driving information to the server 20 at regular intervals regardless of whether the vehicle V is in operation or not.

[0062] This makes it possible to transmit the dangerous driving information to the server 20 more reliably.

[0063] The dangerous driving information transmitting unit 132 may transmit the dangerous driving information when it detects that the vehicle is within a communication range.

[0064] The location information transmission unit 133 transmits the location information of the vehicle V to the server 20 when the vehicle V starts traveling.

[0065] The position information transmitting unit 133 may transmit the signal received by the position information receiving unit 11c as is, or may convert the signal received by the position information receiving unit 11c into information for identifying a position and transmit the converted signal.

[0066] The advice receiving unit 134 receives from the server 20 environmental information, which is information regarding the environment surrounding the location indicated by the location information, environmental advice generated based on the dangerous driving information, and personal advice generated based on the dangerous driving information.

[0067] Here, when the server 20 receives the position information transmitted by the vehicle-mounted device 10, it responds by providing advice and transmitting the generated advice to the vehicle-mounted device 10.

[0068] The accumulation unit 135 accumulates the personal advice in the storage unit 12. The accumulation unit 135 may add the personal advice received by the advice receiving unit 134 to the personal advice information 121 together with the date and time of reception.

[0069] Furthermore, the storage unit 135 may overwrite the already stored personal advice information 121 with the personal advice received by the advice receiving unit 134 .

[0070] In any case, the personal advice information 121 always contains the most recently received personal advice.

[0071] This allows the in-vehicle device 10 to at least hold the accumulated personal advice even if it fails to receive the advice.

[0072] As a result, the in-vehicle device 10 can provide appropriate advice to the driver even when communication is not possible.

[0073] The advice receiving unit 134 can attempt to receive environmental advice and personal advice using multiple bearers.

[0074] For example, if the advice receiving unit 134 fails to receive advice via LTE, the advice receiving unit 134 attempts to receive advice via Wi-Fi. Furthermore, if the advice receiving unit 134 fails to receive advice via Wi-Fi, the advice receiving unit 134 attempts to receive advice via Bluetooth.

[0075] If the advice receiving unit 134 has successfully received the environmental advice and personal advice after the position information transmitting unit 133 has transmitted the position information, the output control unit 136 causes the advice receiving unit 134 to output the environmental advice received.

[0076] This allows the in-vehicle device 10 to output more useful environmental advice than personal advice in a case where communication is possible.

[0077] Conversely, if the advice receiving unit 134 fails to receive environmental advice and personal advice after the location information transmitting unit 133 transmits the location information, the output control unit 136 causes the output unit 11e to output the personal advice stored in the memory unit 12.

[0078] This allows the in-vehicle device 10 to provide appropriate advice to the driver even when communication is not possible.

[0079] For example, the output control unit 136 can determine that the advice reception has failed if a predetermined time (e.g., three minutes) has elapsed without receiving any advice after the location information transmission unit 133 has transmitted the location information, causing a timeout.

[0080] In other words, if the advice receiving unit 134 does not receive environmental advice and personal advice for a certain period of time after the location information transmitting unit 133 transmits location information, the output control unit 136 outputs the personal advice stored in the memory unit 12.

[0081] This enables the in-vehicle device 10 to automatically determine that it has failed to receive the advice.

[0082] Also, for example, when the reception of the advice is canceled by the driver, the output control unit 136 can determine that the reception of the advice has failed.

[0083] In other words, when an operation is performed to cancel the reception of environmental advice and personal advice by the advice receiving unit 134 after the location information transmitting unit 133 has transmitted the location information, the output control unit 136 causes the personal advice stored in the memory unit 12 to be output.

[0084] This allows the in-vehicle device 10 to reflect the user's intention in the advice output control.

[0085] Furthermore, when the advice receiving unit 134 attempts to receive advice via a plurality of bearers and fails to receive the advice via all of the bearers, the output control unit 136 determines that the advice reception has failed.

[0086] In other words, if the advice receiving unit 134 fails to receive environmental advice and personal advice for all of the multiple bearers after the location information transmitting unit 133 transmits the location information, the output control unit 136 outputs the personal advice stored in the memory unit 12.

[0087] On the other hand, when the advice receiving unit 134 attempts to receive advice via a plurality of bearers and successfully receives the advice via any of the bearers, the output control unit 136 determines that the advice has been successfully received.

[0088] This enables the in-vehicle device 10 to increase the possibility of successfully receiving the advice.

[0089] Here, a method of outputting advice by the output control unit 136 will be described with reference to Figures 4 and 5. Figures 4 and 5 are diagrams showing examples of advice output.

[0090] Here, the output unit 11e is assumed to be a display equipped with a speaker.

[0091] FIG. 4 shows an example in which the advice receiving unit 134 has successfully received advice from the server 20. In FIG.

[0092] In this case, as shown in FIG. 4, the output control unit 136 causes the display of the output unit 11e to display the character string "for this occasion."

[0093] "For this time" means that the advice to be output is not stored in the storage unit 12 as personal advice information 121, but is received in real time.

[0094] Furthermore, the speaker of the output unit 11e outputs a voice reading out a message such as "It is snowing today, so the road ahead will be slippery. You usually accelerate suddenly, so please be especially careful today." This message is an example of environmental advice.

[0095] FIG. 5 shows an example in which the advice receiving unit 134 fails to receive advice from the server 20. In FIG.

[0096] In this case, as shown in FIG. 5, the output control unit 136 causes the display of the output unit 11e to display the character string "For the next time communication is not possible."

[0097] The phrase "for the next time communication is not possible" means that the advice to be output is the advice stored in the storage unit 12 as the personal advice information 121.

[0098] Furthermore, the speaker of the output unit 11e outputs a voice reading out the message, "Your vehicle normally accelerates suddenly, so please be careful." This message is an example of personal advice.

[0099] The configuration of the server 20 will be described with reference to Fig. 6. Fig. 6 is a diagram showing an example of the configuration of the server according to the embodiment.

[0100] As shown in FIG. 6, the server 20 includes a communication unit 21, a storage unit 22, and a control unit .

[0101] The communication unit 21 is a communication module, and performs communication between the in-vehicle device 10 and the vehicle V via the network N.

[0102] The control unit 23 and the storage unit 22 of the server 20 are realized by, for example, a computer or various circuits having a CPU, a ROM, a RAM, a flash memory, an input / output port, etc. The storage unit 22 stores dangerous driving information 221.

[0103] The control unit 13 includes a dangerous driving information receiving unit 231 , a position information receiving unit 232 , an advice generating unit 233 , and an advice transmitting unit 234 .

[0104] The dangerous driving information receiving unit 231 receives dangerous driving information from the in-vehicle device 10. The dangerous driving information receiving unit 231 accumulates the received information in the storage unit 22 as dangerous driving information 221.

[0105] The position information receiving unit 232 receives the position information from the in-vehicle device 10 .

[0106] The advice generating unit 233 generates environmental advice based on the environmental information and the dangerous driving information, and also generates individual advice based on the dangerous driving information.

[0107] This enables the server 20 to generate environmental advice that takes into account changes in the weather after the current time.

[0108] Here, the environmental information is, for example, a warning or alert issued for an area including the position indicated by the position information.

[0109] For example, the advice generating unit 233 acquires advisories and warnings provided by the Japan Meteorological Agency. Advisories include heavy rain advisories, heavy snow advisories, dense fog advisories, etc. Warnings include heavy rain warnings, heavy snow warnings, dense fog warnings, etc.

[0110] Furthermore, the advice generating unit 233 may generate advice from dangerous driving information collected over a predetermined period of time.

[0111] The longer the period during which the advice generating unit 233 collects dangerous driving information for generating advice, the easier it is to obtain the dangerous driving information, but the lower the accuracy of the advice.

[0112] Conversely, the shorter the period during which the advice generating unit 233 collects dangerous driving information for generating advice, the more difficult it becomes to obtain the dangerous driving information, but the more accurate the advice becomes.

[0113] The advice transmitting unit 234 transmits the environmental advice and the personal advice to the vehicle-mounted device 10 .

[0114] The flow of processing in the diagnostic system 1 will be described with reference to Fig. 7, Fig. 8, and Fig. 9. Fig. 7, Fig. 8, and Fig. 9 are sequence diagrams showing the processing procedure of the diagnostic system according to the embodiment.

[0115] FIG. 7 shows a process that is performed periodically (for example, every hour) regardless of whether or not advice is received.

[0116] 7, first, the vehicle-mounted device 10 collects dangerous driving information (step S101), and transmits the dangerous driving information to the server 20 (step S102).

[0117] The server 20 accumulates the dangerous driving information received from the vehicle-mounted device 10 (step S103).

[0118] FIG. 8 shows the process when the in-vehicle device 10 successfully receives the advice.

[0119] First, the in-vehicle device 10 is started up at the same time as the vehicle V starts to travel (step S201). Then, the in-vehicle device 10 transmits position information to the server 20 (step S202).

[0120] Here, the server 20 generates environmental advice from the environmental information and the dangerous driving information based on the position information (step S203).

[0121] Furthermore, the server 20 generates individual advice from the dangerous driving information (step S204).

[0122] Next, the server 20 transmits the generated environmental advice and personal advice to the vehicle-mounted device 10 (step S205).

[0123] The vehicle-mounted device 10 stores the received personal advice (step S206), and outputs the received environmental advice (step S207).

[0124] FIG. 9 shows the process when the in-vehicle device 10 fails to receive advice.

[0125] First, the in-vehicle device 10 is started up at the same time as the vehicle V starts to travel (step S301). Then, the in-vehicle device 10 transmits position information to the server 20 (step S302).

[0126] Here, the vehicle-mounted device 10 is unable to receive the advice for a certain period of time, and a timeout occurs (step S303). That is, the vehicle-mounted device 10 fails to receive the advice.

[0127] Note that reception of advice may fail due to a deterioration in the communication environment, a malfunction of the in-vehicle device 10 or the server 20, cancellation by the driver's operation, or the like.

[0128] At this point, the vehicle-mounted device 10 outputs the stored personal advice (step S304).

[0129] As described above, the in-vehicle device 10 has the dangerous driving information transmission unit 132, the position information transmission unit 133, the advice receiving unit 134, and the storage unit 135. The dangerous driving information transmission unit 132 transmits dangerous driving information, which is information regarding dangerous driving by the driver of the vehicle V, to the server 20. The position information transmission unit 133 transmits position information of the vehicle V to the server 20 when the vehicle V starts to operate. The advice receiving unit 134 receives from the server 20 environmental information, which is information regarding the environment around the position indicated by the position information, environmental advice generated based on the dangerous driving information, and personal advice generated based on the dangerous driving information. The storage unit 135 stores the personal advice in a memory unit.

[0130] In this way, the vehicle-mounted device 10 receives the environmental advice and the personal advice, and stores the personal advice. As a result, the vehicle-mounted device 10 of this embodiment can provide appropriate advice to the driver even when communication is not possible.

[0131] Each function of the in-vehicle device 10 is realized by, for example, a computer having a CPU, a ROM, a RAM, a flash memory, an input / output port, etc., and various circuits.

[0132] The in-vehicle device 10 may also acquire the above-mentioned programs and various information via another computer or portable recording medium connected via a wired or wireless network.

[0133] The computer's CPU functions as a collection unit 131, a dangerous driving information transmission unit 132, a position information transmission unit 133, an advice reception unit 134, and a storage unit 135 by, for example, reading and executing a program stored in a ROM.

[0134] Further advantages and modifications may readily occur to those skilled in the art. Thus, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and equivalents thereof.

[0135] For example, the in-vehicle device 10 may collect dangerous driving information for each driver, and transmit the collected dangerous driving information to the server 20 in association with information for identifying the driver.

[0136] For example, the in-vehicle device 10 identifies the driver by an IC card (driver's license) presented by the driver, face recognition, an operation by the driver, or the like.

[0137] This allows the server 20 to generate more accurate advice based on dangerous driving information for each driver, rather than for each vehicle. [Explanation of symbols]

[0138] N Network V Vehicle 1 Diagnostic System 10 Onboard equipment 11a Acceleration sensor 11b Camera 11c Location information receiving unit 11d, 21 Communications Department 11e Output section 12, 22 Storage section 13, 23 Control section 20 Servers 131 Collection Department 132 Dangerous Driving Information Transmission Unit 133 Location information transmission unit 134 Advice Receiving Unit 135 Storage Unit 136 Output control section 121 Personal Advice Information 221 Dangerous Driving Information 231 Dangerous Driving Information Receiving Unit 232 Location information receiving unit 233 Advice Generation Unit 234 Advice Sending Department

Claims

1. An in-vehicle device including a control unit, The control unit is When starting to drive a vehicle, dangerous driving information by a driver and location information of the vehicle are transmitted to a server; When the server successfully receives driving advice information including both a first driving advice generated by the server based on the dangerous driving information and a second driving advice generated by the server taking into consideration the dangerous driving information as well as meteorological information obtained by referring to the location information, the server notifies the driver of the second driving advice and stores the first driving advice in a storage unit; when the driving advice information cannot be received from the server, notifying the driver of the first driving advice stored in the storage unit; In-vehicle device.

2. The dangerous driving information is information regarding the frequency of sudden acceleration, sudden braking, or sudden steering, obtained using a camera and an acceleration sensor mounted on the vehicle. The in-vehicle device according to claim 1 .

3. When the dangerous driving information is information that the frequency of sudden acceleration by the driver is a predetermined number of times or more, and the weather information is information that snow is falling around the location of the vehicle, the first driving advice being a message warning the driver about sudden acceleration; The second driving advice is a message to alert the driver about sudden acceleration and road conditions. The in-vehicle device according to claim 1 or 2.

4. The control unit notifies the driver of the first driving advice stored in the memory unit when the driver performs an operation to cancel reception of the driving advice information from the server. The vehicle-mounted device according to any one of claims 1 to 3.

5. The meteorological information includes information regarding warnings and alerts issued for an area including the location of the vehicle indicated by the location information. The vehicle-mounted device according to claim 1 .

6. An information providing system having a server and an in-vehicle device capable of communicating with the server, wherein the server receiving dangerous driving information by a driver and location information of the vehicle, which are transmitted from the in-vehicle device when the vehicle starts to drive; Transmit driving advice information to the in-vehicle device, the driving advice information including both a first driving advice generated based on the dangerous driving information and a second driving advice generated by taking into consideration meteorological information obtained by referring to the position information in addition to the dangerous driving information; The in-vehicle device includes: If the driving advice information is successfully received from the server, notifying the driver of the second driving advice and storing the first driving advice in a storage unit; when the driving advice information cannot be received from the server, notifying the driver of the first driving advice stored in the storage unit; Information provision system.

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