JP2009032181A - Information provision method, information providing apparatus, and program for information provision - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To support safe driving pursuing ease of driver's driving by reducing a bad influence upon driver's driving, which is caused by a phenomenon in which a frozen road surface looks like a wet road surface. <P>SOLUTION: A vehicle 107 detects reactions of an ECU and an external device and recognizes present position information by using GPS information and distributes weather information 111 and shade information 108 to a center 101. The center 101 uses weather information 111 and shade information 108 sent from a group of vehicles to generate a shade information map 102 with which road conditions inducing formation of black ice are registered, and always updates the shade information map 102 and discriminates points of driving difficulty by using the shade information map 102 to transmit driving difficulty information 105 to the vehicle 107 in response to request for driving difficulty information sent from the vehicle 107. The vehicle 107 displays a freezing warning on a car navigator before reaching a point of driving difficulty and calculates a route passing less points of driving difficulty, in a route search using car navigation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method and apparatus for providing useful information about shade to a driver, and more particularly to a technique for improving the risk of black ice while driving a car.

  Conventionally, the shade distribution map is created using the shade information measured actually, the shade information calculated from the sun position and 3D map, and the shade information determined using aerial photographs, and the shade distribution in the corresponding time zone and place Is displayed on a map (Patent Document 1). Moreover, when it is predicted that the road surface friction coefficient is low due to freezing of the road or the like, the travel control device performs speed control so as to reduce the probability of slip (Patent Document 2).

JP 2005-258107 A JP 2004-17731 A

  Patent Document 1 does not specify a method for collecting actually measured shade information. Moreover, the road surface condition is not taken into consideration, and it is insufficient as shade information for avoiding dangers such as road surface freezing. In Patent Document 2, it is suggested that the center receives information necessary for estimating the slip reduction speed from the automobile, but a specific method is not disclosed.

  The object of the present invention is to reduce the adverse effects on the driver's driving by the black ice that freezes the rain, freezes the melted snow again, and freezes the road, and has pursued ease of driving for the driver. The object is to provide an information providing method, an apparatus thereof, and a program for supporting driving.

  The present invention detects a reaction by an ECU (Electric Control Unit), recognizes the current position information of the vehicle by using GPS information, and distributes the weather information to the center. Moreover, the reaction by an external device is detected, the current position information of the vehicle is recognized by using the GPS information, and the vehicle distributes the shade information to the center. The center uses the weather information and shade information sent from the vehicle group to create a shade information map that registers road conditions where road surface freezing can be formed, constantly updates the shade information map, and is sent from the vehicle. The shading information map is used to identify whether it is a target of a driving failure point (i.e., a driving failure section) in response to a request for driving failure information, and the driving failure information is transmitted from the center to the vehicle. An icing warning is displayed on the car navigation before the vehicle reaches the defective point. Further, in the route search using the car navigation, a route with few bad driving points is calculated.

  That is, in the present invention, an information providing method in which a vehicle connected to a center via a network provides information to a driver, the vehicle is weather information obtained by making a determination based on the acquired weather information and the vehicle information, respectively. And the shady information is sent to the center, and the bad driving information based on the shading information map that is created and updated at the center using the weather information and the shading information sequentially sent from the vehicle is received from the center, and the bad driving information received Based on the above, an information providing method for issuing a warning before the vehicle approaches a bad running point (bad running section) is provided.

  According to the present invention, although it looks black like a mere wet road surface, it can improve the risk due to the influence of black ice on a road where rain or snow that has fallen on the previous day is frozen in the middle of the night or in the morning. Therefore, it is possible to support the driver's safe driving.

  The best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram of an information providing system in the first embodiment. The information providing system in this embodiment includes a vehicle 107 having an information providing apparatus 110 and a center 101 that performs data transmission / reception via a radio base station 104.

  The information providing apparatus 110 is based on raindrop amount information input from a sensor device 106 such as a rain sensor or control information received from an electronic control unit (hereinafter, ECU) 103 via the in-vehicle LAN 100 as weather information. To determine whether the weather is bad. Weather information 111, which is a result obtained by making a determination based on these weather information, is transmitted from the wireless communication apparatus 109 to the center 101. Further, the information providing apparatus 110 determines whether or not the sunlight is poor based on luminance information input from the sensor device 106 such as a camera, temperature information of the outside temperature sensor, and control information received from the ECU 103 via the in-vehicle LAN 100 as vehicle information. Judging. The shade information 108 that is a result obtained based on the vehicle information is transmitted from the wireless communication apparatus 109 to the center 101. In addition, the vehicle 107 transmits a request 112 related to a driving failure point (i.e., a driving failure section) in the surrounding area to the center 101, receives the driving failure information 105 from the center 101, and notifies the driver of an icing warning in the case of driving failure. .

  When the center 101 receives the weather information 111 from the vehicle 107-3, the center 101 holds GPS information such as latitude and longitude described in the information in the shade information map 102 for each effective time. Further, when the center 101 receives the shade information 108 from the vehicle 107-1, the GPS information such as latitude / longitude described in the information, the driving situation such as right turn, left turn, straight ahead, curve, uphill running, etc. In the shade information map 102 for each reception valid time only when the weather information 111 received from the vehicle 107-3 on the previous day exists.

  FIG. 2 shows a specific example of the hardware configuration of the information providing apparatus 110. The information providing apparatus 110 includes a processor 208, which is a processing unit for performing operations such as program execution, a ROM 204 for storing basic programs and basic data such as an OS (Operating System), a processing area and data at the time of program execution, and the like. A RAM 205 used as a temporary storage area, a storage unit such as a hard disk 201 for storing information from sensors provided in the vehicle, a mass storage device interface 206 for transferring information stored in the hard disk 201, and a vehicle 107 are wireless. A communication interface 207 for connecting to the base station 104 via the communication device 109, a communication interface 209 for exchanging information on the vehicle terminal from the ECU 103, and a sensor device 106 such as a camera for measuring images for exchanging data. It is composed of various interface units such as a communication interface 203 for exchanging information from the sensor device interface 210 and the GPS 202, and these components can exchange data with each other via the bus 200. A display device or the like is connected to the bus 200 of the information providing device 110 as necessary.

  When a signal from the sensor device 106 is input, the program on the ROM 204 executed on the processor 208 calculates the weather information 111 and the shade information 108 using the processing area of the RAM 205, and the result is transmitted via the communication interface 207. The data is output to the wireless communication device 109. Further, the driving failure information 105 stored in the temporary storage area of the RAM 205 from the wireless communication device 109 via the communication interface 207 is processed by a program on the ROM 204 and output to the user interface.

  FIG. 3 shows functional blocks included in the information providing apparatus 110. These functional blocks are realized by executing a program of the processor 208 as a processing unit. The information providing apparatus 110 includes a bad weather determining unit 314, a poor driving determining unit 305, and an information providing unit 306.

  The bad weather determination unit 315 converts the information input from the ECU 103 or the sensor device 106 into a sensor signal 310 and outputs the signal to the information determination unit 312 and receives the sensor signal 310 from the sensor input unit 311. An information determination unit 312 that determines the occurrence of bad weather from the sensor signal 310 and outputs GPS information such as latitude and longitude at the time when the sensor signal 310 is detected to the center output unit 313 if the weather is bad. The weather information 111 is created from the information received from the unit 312, and the center output unit 313 outputs the weather information 111 to the center 101. The sensor signal is, for example, an input of control information such as an operating state of the wiper, and it is assumed that the driver operates when the driver feels that there are a lot of raindrops on the windshield. In this case, the determination logic in the information determination unit 312 is not particularly required, and it is determined that the operating event is bad weather. In addition, a rain sensor that detects the amount of raindrops is installed in the vehicle 107, and the operation status of the rain sensor is monitored. When a certain amount of raindrops is detected, the raindrop amount information is input to the information providing apparatus 110 as an event. May be.

  The driving failure determination unit 305 converts the vehicle information input from the sensor device 106 into a sensor signal 304, receives the sensor input unit 303 that outputs the signal to the information determination unit 302, and the sensor signal 304 from the sensor input unit 303, Information that outputs to the center output unit 301 GPS information such as latitude / longitude at the time when the sensor signal 304 was detected, and a driving situation such as a left / right turn is determined. The determination unit 302 includes the center output unit 301 that creates the shade information 108 from the information received from the information determination unit 302 and outputs the shade information 108 to the center 101. It is assumed that the sensor signal is, for example, a button input of a driver used for an input unit (not shown) in the information providing apparatus 110 and the button is pressed when the driver feels that the road surface is frozen. In the case of this example, the determination logic in the information determination unit 302 is not particularly required, and it is determined that the button press event is shaded.

  Further, in order to obtain vehicle information, a camera is attached in front of the vehicle, and the captured image is converted into a luminance value by the sensor input unit 303, and the information determination unit 302 determines that the front is dark when the luminance value falls below a threshold value. Further, an outside air temperature sensor is attached to the vehicle 107, and when the measured temperature falls below the threshold value, it is determined that shade has occurred. In this case, since the brightness value of the outside world is low for a certain period of time at night, it is necessary to set the information determination unit 302 to determine that there is no poor sunshine when the shooting time of the camera image is within the certain period of night. Alternatively, since the headlight of the vehicle is operated at night, the information determination unit 302 may be set to determine poor sunshine only when the headlight is inactive.

  Next, the information providing unit 306 receives the driving failure information 105 from the center 101, and outputs an instruction for confirming the state of driving failure to the information providing determination unit 308, and the driving failure information from the center input unit 307. Whether or not to provide information to the driver based on the valid time indicating the expiration date of the information, area information such as latitude / longitude width, and driving conditions such as turning left / right If the information provision is determined and the information provision is performed, the information provision judgment unit 308 that outputs the freezing warning request to the screen display unit 300, and the screen display that receives the freezing warning request from the information provision judgment unit 308 and displays the freezing warning 309. The unit 300 is configured.

  FIG. 4 shows functional blocks provided in the center 101 of the information providing system of this embodiment. The center 101 receives the weather information 111 from the vehicle 107-3, outputs the GPS information described in the weather information 111 to the shade map management unit 401, receives the shade information 108 from the vehicle 107-1, and outputs the shade information 108 to the shade information 108. The weather information 111 and the shade information 108 are received from the probe input unit 400 and the probe input unit 400 that output the described GPS information and the running situation to the shade map management unit 401, and the shade information map 102 is created, updated, and running It is determined from the shade information map 102 whether or not there is a bad driving point in the vicinity of the vehicle 107-2, and the information of the bad driving point is received from the shade map management unit 401 that notifies the information transmission unit 402 of the result, and is effective. By the information transmission unit 402 that transmits the driving failure information 105 to which the time, the region information, and the driving situation are given to the vehicle 107-2. It is made.

  Next, in this embodiment, a process in which the vehicle 107-3 transmits the weather information 111 to the center 101 will be described. The sensor input unit 311 of the information providing apparatus 110 shown in FIG. 3 converts the weather information received from the ECU 103 or the sensor device 106 into a sensor signal 310, and the information determination unit 312 determines whether or not a bad weather has occurred from the sensor signal 310. to decide. For example, it is determined that a bad weather has occurred due to the operation input of the wiper. Further, when a rain sensor attached to a vehicle is used as the sensor device 106, for example, the amount of raindrops taken as rain by the Japan Meteorological Agency with respect to the amount of raindrops, and the time when the sensor signal is detected It is determined whether or not a bad weather has occurred by determining whether or not the amount of raindrops crosses the threshold before and after.

  When it is determined that the point is a bad weather point, the center output unit 313 creates the weather information 111 including GPS information at the bad point and transmits it to the center 101. An example of the format of the weather information 111 is shown in FIG. The weather information format 1200 includes an ID 1201 for identifying the information and GPS information 1202 indicating the position of the bad weather point, and is created by the center output unit 301.

  Next, a process in which the vehicle 107-1 transmits the shade information 108 to the center 101 will be described. The vehicle information received from the sensor device 106 is converted into a sensor signal 304 by the sensor input unit 303 in FIG. 3, and the information determination unit 302 determines from the sensor signal 304 whether there is a poor sunshine. For example, it is determined that poor sunshine has occurred due to a driver's button input. When a camera attached to the vehicle is used as the sensor device 106, the camera is attached to the front of the vehicle, the captured image is converted into a luminance value by the sensor input unit 303, and the information determination unit 302 When the value falls below the threshold value, it is determined that the front is dark. Further, an outside air temperature sensor is attached to the vehicle 107, and when the information determination unit 302 is in a state where the measured temperature is below the threshold value, When it is determined that the converted luminance value has fallen below the threshold, it is determined that a shade has occurred. For example, with respect to the luminance value of the camera image as the luminance information, the information determination unit 302 is set to use the average value of the luminance value distribution that changes in one day as a threshold, and at the time and place where the sensor signal is detected It is determined whether the luminance value is below a threshold value. Furthermore, when rain or melted snow freezes on the road surface, the water on the road surface freezes at about zero degrees or less, and this freezing is expected to cause an accident. By determining whether or not the temperature of the outside air temperature sensor is below zero degrees at the time and place where it was confirmed that the luminance value distribution of the camera was below the average value. It is determined whether or not a defect has occurred.

  When it is determined that the spot is a poor sunshine spot, the center output unit 301 creates the shade information 108 including the GPS information and the traveling state at the poor sunshine spot and transmits the generated information to the center 101. The driving situation is, for example, a driving operation such as turning left or right, straight ahead, curve, or ascending determined from a steering angle or steering wheel operation, and the driving operation is recognized by a driving situation table 501 held by the information determination unit 302. . An example of the travel situation table is shown in FIG. The travel situation table 501 is composed of an operation time 502 when the operation is performed and a travel situation content 503 such as a left / right turn, and the travel situation content 503 at the latest operation time is used as information representing the travel situation. For example, in the example of FIG. 5, straight travel is used as the traveling situation content. An example of the format of the shade information 108 is shown in FIG. The shade information format 1203 includes an ID 1204 that identifies the information, GPS information 1205 that indicates the position of a poorly lit spot, a driving situation 1206 that is classified as a left / right turn or a straight drive based on a steering angle, a steering wheel rotation direction, and the like. Created by the center output unit 301.

  FIG. 6 shows a processing flow in which the shade map management unit 401 of the center 101 updates the shade information map 102. The shade information 108 from the vehicle 107-1 is received by the probe input unit 403 (step 601), and the shade map management unit 101 determines whether or not the weather information 111 has been received within a certain area around the previous term vehicle within a certain time. Judgment is made (step 602), and the shade map management unit 101 updates the shade information map 102 that holds the poor running point based on the GPS information and the running situation described in the shade information 108 received from the probe input unit 403. (Step 603).

  FIG. 7 shows the configuration of a specific example of the shade information map 102 of this embodiment. The shade information map 102 has a fixed number 702 for identifying the shade information 108 in the shade information map 102, the effective time 701 of the shade information 108 received from the vehicle 107-1, and the GPS information in the shade information 108. It is composed of a fixed zone warning area 703 around a poor driving point having latitude / longitude widths and a driving situation 704. The shade information map 102 confirms the information on the bad driving point determined by the weather information 111 received from the vehicle 107-3 and the shade information 108 received from the vehicle 107-1, and each information registered in the shade information map 102. If one or more different information exists, the shade information map 102 is updated by reflecting the contents of the received shade information 108 in the shade information map 102.

  For example, in the example of FIG. 7, the shade information map 102 when a left turn is received as a traveling situation from a vehicle that has traveled at a point of latitude 35.000400 and longitude 139.0002 is represented. -A width of ± 0.0001 is given to the longitude. Further, the shade information time has a width of 30 minutes.

  Next, in the present embodiment, a process in which the center 101 transmits the running failure information 105 to the vehicle 107 will be described. When the center 107 recognizes that the vehicle 107 has entered a certain area around the warning area registered in the shade information map 102, the driving failure information 105 is transmitted from the information transmission unit 402 of the center 101 to the vehicle 107. Here, the route information held by the car navigation may be used as the timing for transmitting the running failure information 105 to the vehicle 107.

  Further, as an example of a method of transmitting the driving failure information 105 to the vehicle 107 based on the surrounding environment that is different for each driver, the center 101 travels to the vehicle 107-2 in response to the request 112 from the vehicle 107-2 in FIG. The process flow which transmits the defect information 105 is shown. When the center 101 receives the request 112 sent from the vehicle 107-2 (step 801), the GPS 101 in the request 112 and the shade information map 102 are used to indicate a bad driving point warning area within a certain area around the vehicle. Is determined (step 802), whether or not there is another driving failure point warning area in a certain area around the vehicle (step 803), and the information transmission unit 402 receives the driving failure information. 105 is transmitted to the vehicle 107-2 (step 804).

  The format of the request 112 is shown in FIG. 12C, and the format of the running failure information 105 is shown in FIG. The request format 1207 includes an ID 1208 for identifying the information, and GPS information 1209 indicating position information at the time of the request. The driving failure information format 1210 indicates an ID 1211 for identifying the information, an effective time 1212 indicating a time limit for which the driving failure information is valid, region information 1213 for issuing a warning regarding a driving failure such as a latitude / longitude width, and a left / right turn. It is comprised by the driving | running | working condition 1214. Although it is assumed that the request 112 is periodically transmitted, the request 112 may be transmitted before turning right or left, or may be determined at the driver's will, for example, in consideration of a reduction in communication charges. The driving failure information 105 holds information on all the driving failures targeted by the vehicle 107-2 that has transmitted the request 112.

  FIG. 9 shows a warning display processing flow in the information providing unit 306 of the information providing apparatus 110 of this embodiment. The driving failure information 105 from the center 101 is received by the center input unit 307 (step 901). In the region information 1213 of the driving failure information 105, whether or not the current driving position is within the region where the driving failure point is warned. (Step 902), and in the driving situation 1214 of the driving failure information 105, it is determined whether or not the driving situation of the vehicle 107-2 is a target for issuing a warning of a driving failure point (step 903). It is determined whether or not the time is within the valid time 1212 of the running failure information 105 (step 904). If the time is within the valid time 12129, the freeze warning 309 is displayed on the screen display unit 300 (step 905) and received. It is confirmed whether or not the other unsuccessful travel point warning area is a target for issuing the freeze warning 309 (step 906). Here, for example, the route information held in the car navigation may be used as the next traveling state in step 903.

  FIG. 10 shows a user interface screen for displaying the sunshine situation in the present embodiment. The user interface 1000 is a system in which a display device and a display device interface are mounted on the information providing device 110 of FIG. 2 via the bus 200, and is a car navigation, for example. Of course, the information providing apparatus 110 may be configured by an in-vehicle terminal, and the in-vehicle terminal may include a display device, and the in-vehicle terminal including the display device may have a car navigation function.

  When the sunshine situation related to the freezing warning is input to the screen display unit 300, the road 1001 that causes a running failure is highlighted and displayed on the user interface 1000 of the display device. Further, the screen display unit 300 displays an icon 1002 that images ice on the user interface 1000, and as the vehicle 107 approaches a point where the freezing warning 108 is issued, the color of the icon 1002 that images ice is darkened. Change it by increasing the icon size. Moreover, the frozen road surface travel time 1203 of the section where visibility is poor is displayed. In the example of FIG. 10, a road 1001 that becomes a running failure is indicated by diagonal lines, an icon 1002 that images ice is arranged on the upper right of the user interface 1000, and 10:05:05 to 10:05:15 is placed on the lower left of the user interface 1000. It is displayed that the vehicle travels at a poor travel point (unsuccessful travel section) during the time zone.

  FIG. 11 shows a user interface screen for displaying a freezing warning in the present embodiment. When a freezing warning is input to the screen display unit 300, a freezing warning message 1101 is displayed on the user interface 1100 of the display device, and a message 1102 is sent as a voice message to notify the vehicle driver of attention to black ice. In the example of FIG. 11, a large font that fills the entire screen conveys attention to black ice and includes an instruction to suppress the vehicle speed. In addition to displaying the freeze warning message 1101 on the user interface 1100 using the screen display unit 300, the voice message 1102 is circulated as voice guidance to urge the vehicle driver to be wary of black ice. . In this voice guidance, voice guidance is preferably performed at a low volume for a warning at a warning level, and voice guidance is performed at a high volume for a strong warning.

  As described above, as the first embodiment, the information providing system in consideration of the shade has been described with respect to the case of collecting information related to the running failure from the vehicle group. The information providing apparatus 110 included in the vehicle has bad weather based on control information such as raindrop amount information, luminance information input from a sensor device such as a rain sensor, and the wiper operation status received from the ECU 103 via the in-vehicle LAN 100. If the weather is bad, weather information is transmitted from the wireless communication device 109 to the center 101 that performs data transmission / reception via the vehicle and the wireless base station 104. Further, the information providing apparatus 110 provided in the vehicle determines whether or not there is poor sunshine based on luminance information input from a sensor device such as a camera or control information received from the ECU 103 via the in-vehicle LAN 100. The sunshine information is transmitted from the wireless communication device 109 to the center that performs data transmission / reception via the vehicle and the wireless base station 104. In addition, the vehicle inquires the center 101 about driving failure information in the vicinity, receives the driving failure information from the center 101, and notifies the driver of a freezing warning when driving failure occurs. This makes it possible to improve the driving failure due to the influence of black ice on a road that looks black just like a wet road but rains or melted snow the previous day is frozen at midnight or in the morning. It is possible to support safe driving.

  Next, as a second embodiment, an information providing system for presenting a user with a route with the least number of poor running points will be described.

  In the shade information map 102 created in the first embodiment, information on bad driving points that are considered to adversely affect the driving of the driver is posted. In the present embodiment, by using this shade information map 102, the route with the least number of bad driving points is presented to the user, and safer driving is recommended to the driver.

  The case of Example 2 will be described using the processing flow shown in FIG. 8 in which the center 101 provides the running failure information 105 to the vehicle 107-2. The center 101 receives the request 112 of the driving failure information 105 sent from the vehicle 107-2 to create an optimal route (step 801). Using the GPS information and the destination information in the request 112, the shade information map 102 is searched for whether or not there is a bad driving point warning area within a certain area including both points (step 802), Then, it is confirmed whether or not there is another bad driving point warning area in the certain area (step 803), and the bad driving information 105 is transmitted from the information transmitting unit 402 to the vehicle 107-2 (step 804). The format of the request 112 is shown in FIG. 13A, and the format of the running failure information 105 is shown in FIG. The request format 1301 includes an ID 1302 for identifying the information, GPS information 1303 indicating position information at the time of the request, and destination information 1304 such as a latitude and longitude of a target point. Driving failure information format 1305, ID 1306 for identifying the information, effective time 1307 indicating a time limit for which the driving failure information is valid, region information 1308 for issuing a warning about driving failure such as latitude / longitude width, driving indicating right / left turn, etc. Configured by situation 1309. The driving failure information 105 holds information on all the driving failures targeted by the vehicle 107-2 that has transmitted the request 112.

  FIG. 14 shows a processing flow in which the vehicle 107 creates a route with the least number of poor running points in this embodiment. The driving failure information 105 from the center 101 is received by the center input unit 307 (step 1401), and in the region information 1308 of the driving failure information 105, the region that becomes the driving failure point exists on the route created by the existing route search. (Step 1402), and in the driving situation 1309 of the driving failure information 105, it is determined whether or not the driving situation of the vehicle 107-2 on the created route becomes a target of the driving failure point (step). 1403) It is determined whether or not the current time is within the valid time 1307 of the driving failure information 105 (step 1404), and whether or not there is another driving failure point warning region within a certain region around the vehicle. Is confirmed (step 1405). The above processing flow is performed for a plurality of routes (step 1406), and the route with the least number of poor running points is presented to the driver (step 1407).

  In the information providing apparatus considering the shade, the case where the route is searched from the information related to the running failure has been described. By using a shade information map that holds information on bad driving points that are thought to adversely affect the driving of the driver, the route with the few bad driving points can be presented to the user. This makes it possible to provide the driver with a route that looks black just like a wet road but minimizes the passage of rain or thawed snow on the previous day through frozen areas due to chilling in the middle of the night or in the morning. In addition, since it is possible to improve the driving failure due to the influence of road surface freezing, it is possible to support the driver's safe driving.

1 is an overall configuration diagram of an information providing system in a first embodiment. The hardware block diagram of the information provision apparatus in a 1st Example. The figure which shows the functional block with which the information provision apparatus in a 1st Example comprises. The figure which shows the functional block which the center in a 1st Example comprises. The figure which shows the driving | running | working condition table which the vehicle in a 1st Example comprises. The figure which shows the processing flow about the sunlight information map update of the center in a 1st Example. The figure which shows an example of a sunshine map structure in a 1st Example. The figure which shows the processing flow about the driving | running | working failure information provision of the center in a 1st Example. The figure which shows the warning display process flow of the information provision part in a 1st Example. The figure which shows the user interface screen figure of the sunlight condition in a 1st Example. The figure which shows the user interface screen of the freezing warning in a 1st Example. The figure which shows the information format transmitted / received between the vehicle and center in a 1st Example. The figure which shows the information format transmitted / received between a vehicle and a center in a 2nd Example. The figure which shows the processing flow which produces a route with few driving | running | working bad spots in a 2nd Example.

Explanation of symbols

  101 ... Center, 102 ... Shade information map, 104 ... Radio station, 105 ... Running failure information, 107 ... Vehicle, 108 ... Shade information, 111 ... Weather information.

Claims (15)

An information providing method in which a vehicle connected to a center via a network provides information to a driver,
The vehicle transmits weather information and shade information obtained based on the acquired weather information and vehicle information to the center;
Using the weather information and the shade information transmitted from the vehicle, the vehicle receives, from the center, driving failure information based on a shade information map created / updated at the center;
The vehicle is an information providing method including a step of issuing a warning before the vehicle approaches a poor driving point based on the received bad driving information. The information providing method according to claim 1,
An information providing method using, as the weather information, raindrop amount information of a rain sensor mounted on the vehicle or control information indicating an operation state of a wiper of the vehicle. The information providing method according to claim 1,
An information providing method using luminance information outside the vehicle, temperature information, or a traveling state of the vehicle as the vehicle information. An information providing method according to claim 3,
An information providing method using the temperature of an outside air temperature sensor installed in the vehicle as the air temperature information. An information providing method according to claim 3,
The information providing method in which the vehicle determines poor sunshine based on the luminance information and acquires the shade information. The information providing method according to claim 5, wherein
An information providing method for obtaining the luminance information from image information of a camera mounted on the vehicle. The information providing method according to claim 4, wherein
An information providing method for obtaining the shade information by determining that the sunlight is defective when the temperature of the outside air temperature sensor is lower than a temperature at which moisture freezes. The information providing method according to claim 1,
Based on the received weather information and the shade information, the center determines that the point is poor running if a certain point is bad weather within a certain time from the day before yesterday or the present time and the sun is poor at present. An information providing method for obtaining the running failure information. An information providing apparatus connected to a center via a network and providing information to a driver,
A processing unit and an interface unit;
The processor is
Sending weather information and shade information respectively obtained based on weather information and vehicle information acquired via the interface unit to the center via the interface unit,
Using the weather information and the shade information transmitted from the vehicle, the driving failure information based on the shade information map created / updated at the center is received from the center via the interface unit,
An information providing apparatus that controls to issue a warning before the vehicle approaches a poor running section based on the received bad running information. An information providing apparatus according to claim 9, wherein
A display device;
The processing unit is an information providing device that displays the poor running section on the display device when the vehicle issues a warning based on the received bad running information before the vehicle approaches the bad running section. The information providing device according to claim 10,
The information processing apparatus, wherein the processing unit displays icons indicating an image of ice in order so as to change sequentially as the vehicle approaches the poor running section that issues a warning. The information providing device according to claim 10, wherein
The information processing apparatus, wherein the processing unit displays a travel time of the poor travel section on the display device based on the received poor travel information. An information providing apparatus according to claim 9, wherein
A display device;
The processor is
An information providing apparatus for displaying a route with the least number of bad driving points to a destination on the display device based on the bad driving information received from the center in response to a request. An information providing program for an apparatus mounted on a vehicle and providing information to a driver of the vehicle, having a processing unit and an interface unit, connected to a center via a network,
The processing unit is
Sending weather information and shade information acquired based on weather information and vehicle information acquired via the interface unit to the center via the interface unit,
Using the weather information and the shade information sequentially transmitted from the vehicle, the driving failure information based on the shade information map created / updated at the center is received from the center via the interface unit,
An information providing program that operates to issue a warning before the vehicle approaches a poor running point based on the received bad running information. The program for providing information according to claim 14,
The processing unit is
An information providing program that is operated to notify a route having the least number of bad running points to a destination based on the bad running information.

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