JP2010186205A - Road state data providing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a road state data providing device for providing data indicating a proper road state to vehicle control equipment when an abnormal operation is detected. <P>SOLUTION: The road state data providing device connected to a vehicle control unit 3 for controlling a vehicle includes: a map data storage unit 5 which stores map data; positional information acquisition unit 4 which obtains positional information indicating the current position of the vehicle; an abnormality detection unit 1 which detects an abnormal operation; and a control unit 2 which generates, when the abnormal operation is detected by the abnormality detection unit, road state data including at least one of the vehicle current position, the type of the road where the vehicle travels, a road state, or a place located in the forward direction where the vehicle can stop, according to road data and parking space data contained in the map data obtained from a map data storage unit and data obtained from the positional information obtained by the positional information obtaining unit and indicating the current position and the advance direction of the vehicle, and sends the data to the vehicle control equipment. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a road condition data providing apparatus that provides data representing a road condition at that time to a vehicle control device for controlling the vehicle when abnormal driving is detected.

  Conventionally, a technique for safely guiding a vehicle when abnormal driving is detected is known. For example, Patent Document 1 discloses a system that prevents a vehicle accident due to drowsy driving. This system sends danger information to the support computer installed in the security center outside the vehicle when a drowsy driving is detected, and the operator and driver of the support computer make a call, and the risk of a dozing accident is high In addition, the vehicle is guided to a nearby resting place or destination by the voice guidance of the operator.

JP 2003-123198 A

  However, since the system disclosed in Patent Document 1 described above is configured to guide the vehicle to an appropriate stop position via the operator, the operator is absent from the security center or the operator is also asleep. It does not work when you are doing. In addition, since communication is performed between the vehicle and the security center via the mobile communication network, it does not function in an incommunicable section (for example, in a tunnel).

  In addition, the road information is not the information held in the vehicle, but the information held in the security center support computer, so the vehicle location information may not be accurately reflected on the support computer map. There is sex. Also, there is a problem that vehicle control (deceleration or parking at an appropriate location) is performed by the driver and does not function when the driver is unable to drive normally.

  The present invention has been made in order to solve the above-described problems, and its task is to provide a road condition data providing device capable of providing data representing an appropriate road condition to the vehicle control device when abnormal driving is detected. It is to provide.

  In order to solve the above problems, a road situation data providing device according to the present invention is a road situation data providing apparatus connected to a vehicle control device for controlling a vehicle. Map data acquired from the map data storage unit when a position information acquisition unit that acquires position information representing the current position of the host vehicle, an abnormality detection unit that detects abnormal driving, and an abnormal operation detected by the abnormality detection unit Based on the road data and parking space data included in the vehicle, and the data indicating the current position and traveling direction of the own vehicle obtained from the position information acquired by the position information acquisition unit. And a control unit that generates road condition data including at least one of the type, road condition, or stopable location that exists in the traveling direction and sends the data to the vehicle control device.

  According to the road condition data providing apparatus according to the present invention, when abnormal driving is detected, the road position data and parking space data included in the map data, and the current position and traveling direction of the own vehicle obtained from the position information are displayed. Based on the data to represent, generate road condition data including at least one of the current position of the own vehicle, the type of road on which the vehicle is traveling, the road condition, or a stopable place existing in the traveling direction, and send it to the vehicle control device Since it comprised, when abnormal driving | operation is detected, the data showing an appropriate road condition can be provided to a vehicle control apparatus.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a road condition data providing apparatus according to Embodiment 1 of the present invention. This road condition data providing device is implemented by being incorporated in a car navigation device. The road condition data providing device of the present invention does not necessarily have to be incorporated in a car navigation device, and can be configured alone or incorporated in another device.

  The road condition data providing apparatus includes an abnormality detection unit 1, a control unit 2, a vehicle control unit 3, a position information acquisition unit 4, a map data storage unit 5, a display unit 6, a voice output unit 7, and an input unit 8. The control unit 2 and the vehicle control unit 3 are connected by, for example, an in-vehicle network.

  The abnormality detection unit 1 detects abnormal operation and generates a signal indicating that abnormal operation has been detected. The abnormal driving detected by the abnormality detecting unit 1 is caused by driving caused by a driver's abnormality such as drunk driving, side driving, snoozing driving or meandering driving, and car abnormality such as a decrease in tire air pressure. Driving is included. A signal indicating that the abnormal operation generated by the abnormality detection unit 1 is detected is sent to the control unit 2 and the vehicle control unit 3. In addition, the structure which sends the signal to the effect of having detected the abnormal driving | operation produced | generated by the abnormality detection part 1 to the vehicle control part 3 is conventionally known.

  The control unit 2 is realized by a microcomputer, a memory, and software that operates using these, and controls the entire road condition data providing apparatus. For example, when data indicating abnormal operation is sent from the abnormality detection unit 1, the control unit 2 generates data for controlling the vehicle and sends the data to the vehicle control unit 3. Details of the control unit 2 will be described later.

  The vehicle control part 3 is comprised from vehicle control apparatuses, such as an automatic deceleration device or an automatic stop device, for example. The automatic deceleration device performs control for safely decelerating the vehicle when abnormal operation is detected by the abnormality detection unit 1. The automatic stop device performs control to automatically stop the vehicle when abnormal operation is detected by the abnormality detection unit 1. Further, the vehicle control unit 3 has a function of controlling deceleration or stop of the vehicle in accordance with a signal from a sensor such as a front radar or a side radar, and this function is conventionally known.

  The position information acquisition unit 4 includes a GPS (Global Positioning System) receiver, a gyro sensor, a vehicle speed sensor (both not shown), and the like, and acquires position information indicating the current position of the host vehicle. The position information acquired by the position information acquisition unit 4 is sent to the control unit 2.

  The map data storage unit 5 stores map data. The map data includes road data and facility data. The road data includes data representing the number of road lanes, road types such as expressways or ordinary roads, and road conditions such as tunnels or sharp curves. The facility data includes data representing a parking space such as a parking area or a convenience store parking lot.

  The display unit 6 is realized by a liquid crystal display, for example, and corresponds to the output device of the present invention. The display unit 6 displays a map, a vehicle position mark, a route, various menus, and the like. The display unit 6 also displays warning information and the like when abnormal operation is detected. The voice output unit 7 corresponds to the output device of the present invention, and in normal times, based on the voice data sent from the control unit 2, guidance guidance, voice recognition result repetition, navigation system state, operation end, etc. Output sound such as status or event. The voice output unit 7 outputs a warning voice based on the voice data sent from the control unit 2 when abnormal operation is detected.

  The input unit 8 includes, for example, a touch panel, a touch pad, a remote controller, and a commander, and is used for a user to input various instructions to the road condition data providing device. Information input from the input unit 8 is sent to the control unit 2.

  Next, details of the control unit 2 will be described. FIG. 2 is a block diagram functionally showing the detailed configuration of the control unit 2. The control unit 2 includes a map data acquisition unit 21, a map panel unit 22, a host vehicle position / traveling direction acquisition unit 23, a road data acquisition unit 24, a host vehicle position vicinity road data organization unit 25, a warning telop The generation unit 26, a warning voice text generation unit, a TTS (Text-To-Speech) unit 28, and a route search unit 29 are configured.

  The map data acquisition unit 21 acquires map data from the map data storage unit 5 by sending a map data acquisition request to the map data storage unit 5. The map data acquired by the map data acquisition unit 21 is sent to the map panel unit 22, the vehicle position / travel direction acquisition unit 23, the road data acquisition unit 24, and the route search unit 29.

  The map panel unit 22 generates data for displaying a map based on the map data sent from the map data acquisition unit 21 and sends the data to the display unit 6. Further, the map panel unit 22 generates data for displaying the vehicle position mark based on the current position data and the traveling direction data sent from the vehicle position / travel direction acquisition unit 23 and sends the data to the display unit 6. . Further, the map panel unit 22 generates data for displaying a route based on the data representing the route sent from the route search unit 29 and sends the data to the display unit 6. Further, the map panel unit 22 generates data for displaying the warning telop based on the data representing the warning telop sent from the warning telop generation unit 26 and sends the data to the display unit 6.

  The own vehicle position / traveling direction acquisition unit 23 performs map matching based on the position information sent from the position information acquisition unit 4 and the map data sent from the map data acquisition unit 4, and on the map of the own vehicle. Data representing the current position and direction of travel is generated. The current position data representing the current position of the own vehicle and the traveling direction data representing the traveling direction generated by the own vehicle position / traveling direction acquisition unit 23 are sent to the map panel unit 22 and the route search unit 29, and road data acquisition is performed. In response to a request from the unit 24, it is sent to the road data acquisition unit 24.

  The road data acquisition unit 24 starts from the own vehicle position indicated by the own vehicle position data acquired from the own vehicle position / travel direction acquisition unit 23, and the road data included in the map data of the travel direction indicated by the travel direction data. Obtained from the map data obtaining unit 21. The road data includes data representing road conditions where the vehicle position exists, data representing a stopable location existing in the traveling direction of the vehicle, and the like. The road data acquired by the road data acquiring unit 24 is sent to the own vehicle position vicinity road data organizing unit 25 in response to a request from the own vehicle position neighboring road data organizing unit 25.

  When the vehicle position vicinity road data organizing unit 25 receives a signal from the abnormality detection unit 1 indicating that abnormal driving has been detected, the road data acquisition unit 24 receives a signal indicating that the vehicle type is in the vicinity of the vehicle position and the road type in the traveling direction, road Data on the situation and where the vehicle can be stopped is acquired and sent to the vehicle control unit 3, the warning telop generation unit 26, and the warning voice text generation unit 27.

  When the warning telop generation unit 26 receives a signal indicating that abnormal operation has been detected from the abnormality detection unit 1, the warning telop generation unit 26 generates data representing the warning telop and sends it to the map panel unit 22. When the warning telop generation unit 26 receives data representing a place where the vehicle can be stopped from the vehicle position vicinity road data organizing unit 25, the warning telop generation unit 26 generates data representing a telop that informs the location and sends the data to the map panel unit 22.

  When the warning voice text generation unit 27 receives a signal indicating that the abnormal operation has been detected from the abnormality detection unit 1, the warning voice text generation unit 27 generates a warning voice text and sends it to the TTS unit 28. When the warning voice text generation unit 27 receives data representing a place where the vehicle can be stopped from the white car position vicinity data organizing unit 25, the warning voice text generation unit 27 generates voice text data informing the location and sends it to the TTS unit 28.

  The TTS unit 28 converts the warning voice text data sent from the warning voice text generation unit 27 into voice data and sends the voice data to the voice output unit 7.

  The route search unit 29 is a route from the position input from the input unit 8 or the position indicated by the current position data sent from the own vehicle position / traveling direction acquisition unit 23 to the destination input from the input unit 8. Is searched based on the map data sent from the map data acquisition unit 21, and data representing the route obtained by this search is sent to the map panel unit 22.

  Next, the operation of the road condition data providing apparatus according to the first embodiment of the present invention configured as described above will be described with reference to the flowchart shown in FIG. The description will be given with reference. This road condition data providing process is started when a signal indicating that an abnormal operation has been detected is received from the abnormality detection unit 1.

  In the road condition data providing process, first, information on the vehicle position and the traveling direction is acquired (step ST11). That is, the road data acquisition unit 24 acquires the host vehicle position data and the traveling direction data from the host vehicle position / traveling direction acquisition unit 23.

Next, data on the road type in the traveling direction, the road condition, and the place where the vehicle can be stopped is obtained in the vicinity of the vehicle position (step ST12). That is, the road data acquisition unit 24 acquires the data of the road type, the road condition, and the place where the vehicle can stop in the vicinity of the own vehicle position in the traveling direction from the map data acquisition unit 21. Here, the data acquired by the road data acquisition unit 24 includes the following data.
(1) Current road conditions (within railroad crossings, intersections, tunnels, bridges, etc.)
(2) The type of road that is currently running (highway, national road, major local road, general road, etc.)
(3) Number of lanes on the currently traveling road (4) Presence / absence of a roadside belt on the currently traveling road (5) Position of the emergency stop zone existing within a certain distance along the traveling direction and the distance to the position ( 6) Service area existing within a certain distance along the traveling direction, position of the parking area and distance to the position (7) Location of facility having a parking lot existing within a certain distance along the traveling direction and its position Distance to

  Here, “a certain range along the traveling direction” is a straight traveling direction along the road, but when a route is being searched for by the route searching unit 29, the direction is along the searched route. You can also.

  Note that the data shown in (1) to (7) described above is an example, and besides these, the types of places that should not stop and the types of places that can stop can be expanded.

  Next, the acquired information is organized (step ST13). That is, the vehicle position vicinity road data organizing unit 25 organizes the data acquired by the process of step ST12, and according to the request from the vehicle control unit 3, the state, type, number of lanes, road Organize data such as presence / absence of sidebands, location of emergency stop zone and distance to that location, service area, location of parking area and distance to that location, facility location with parking lot and distance to that location, The type of data provided to the vehicle control unit 3 is determined.

  In this case, the vehicle position vicinity road data organizing unit 25 can be configured to determine a place where the vehicle can be stopped according to the type of abnormal driving detected by the abnormality detecting unit 1. For example, it is configured so that “a certain range along the direction of travel” is set large for minor abnormal driving, and “a certain range along the direction of travel” is set small for serious abnormal driving. it can. According to this configuration, it is possible to present to the user an optimum stop location according to the weight of abnormal driving.

  Next, data is provided to the vehicle control unit 3 (step ST14). That is, the own vehicle position vicinity road data organizing unit 25 sends the data arranged in step ST13 to the vehicle control unit 3 as data representing the road condition in the vicinity of the own vehicle position and in the traveling direction. The vehicle control unit 3 uses the data provided from the control unit 2 as one piece of sensor information for controlling the vehicle, similarly to signals obtained from sensors such as front radar and side radar.

  In step ST14, the vehicle position vicinity road data organizing unit 25 also sends the road condition in the vicinity of the vehicle position and in the traveling direction to the warning telop generation unit 26 and the warning voice text generation unit 27, and the display unit 6 displays a warning telop, and also outputs a warning voice from the voice output unit 7. With this configuration, since it is possible to notify the vehicle occupants including the driver that the vehicle is operating abnormally, the effect of avoiding abnormal driving can be further enhanced. Even when the vehicle control unit 3 is not present, it can be configured to display a warning telop and / or output a warning sound.

  Next, it is checked whether or not the vehicle is stopped (step ST15). If it is determined in step ST15 that the vehicle is stopped, the road condition data providing process ends. On the other hand, if it is determined in step ST15 that the vehicle has not stopped, it is checked whether or not there is a signal indicating that abnormal driving has been detected (step ST16). If it is determined in step ST16 that there is a signal indicating that abnormal operation has been detected, it is recognized that abnormal operation is continuing, the sequence returns to step ST11, and the above-described processing is repeated. On the other hand, if it is determined that there is no signal indicating that abnormal driving has been detected, it is recognized that abnormal driving has been avoided, and the road condition data providing process ends.

  In the road condition data providing apparatus according to the first embodiment described above, the control unit 2 acquires information indicating traffic conditions such as whether or not there is a traffic jam from, for example, VICS (Vehicle Information and Communication System). Considering this information, it can be configured to determine a place where the vehicle can be stopped.

It is a block diagram which shows the structure of the road condition data provision apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows functionally the detailed structure of the control part of the road condition data provision apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the road condition data provision apparatus which concerns on Embodiment 1 of this invention centering on the road condition data provision process performed in a control part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Abnormality detection part, 2 Control part, 3 Vehicle control part, 4 Position information acquisition part, 5 Map data storage part, 6 Display part, 7 Voice output part, 8 Input part, 21 Map data acquisition part, 22 Map panel part, 23 vehicle position / travel direction acquisition unit, 24 road data acquisition unit, 25 vehicle position vicinity road data organization unit, 26 warning telop generation unit, 27 warning voice text generation unit, 28 TTS unit, 29 route search unit.

Claims (4)

In a road condition data providing device connected to a vehicle control device for controlling a vehicle,
A map data storage unit for storing map data;
A position information acquisition unit that acquires position information indicating the current position of the vehicle;
An abnormality detection unit for detecting abnormal operation;
When abnormal operation is detected by the abnormality detection unit, the road data and the parking space data included in the map data acquired from the map data storage unit, and the position information acquired by the position information acquisition unit Based on data representing the current position and traveling direction of the own vehicle, road condition data including at least one of the current position of the own vehicle, the type of road being traveled, the road condition, or a stopable location existing in the traveling direction is generated. And a road condition data providing device comprising a control unit for sending to the vehicle control device. It has a route search unit that searches for a route to the destination,
The control unit includes road status data including at least one of a current position of the host vehicle along the route searched by the route search unit, a type of road being traveled, a road status, or a stopable location existing in a traveling direction. The road condition data providing apparatus according to claim 1, wherein the road condition data providing apparatus generates the road condition data.   The road condition data providing apparatus according to claim 1, wherein the control unit determines a place where the vehicle can be stopped according to the type of abnormal operation detected by the abnormality detection unit. An output device for outputting warning information;
A map data storage unit for storing map data;
A position information acquisition unit that acquires position information indicating the current position of the vehicle;
An abnormality detection unit for detecting abnormal operation;
When abnormal operation is detected by the abnormality detection unit, the road data and the parking space data included in the map data acquired from the map data storage unit, and the position information acquired by the position information acquisition unit Based on the data indicating the current position and traveling direction of the vehicle, road condition data including at least one of the current position of the own vehicle, the type of road being traveled, the road condition or a stopable location existing in the traveling direction is generated. And a road condition data providing device comprising a control unit for sending to the output device.

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