JPH097087A - Guidance device - Google Patents

Abstract

PURPOSE: To improve the driving technique by totally evaluating the travel state of the whole distance judged from the travel state of a vehicle at a detected current position and stored travel reference data. CONSTITUTION: When a driver inputs a destination through an input device 131, a navigation processing part 11 searches a data file for a route from the current place to the destination and stores the travel state in a travel data storage part 17 at any time. Further, travel data inputted from a travel data detection part 16 are compared with the reference data stored in a travel reference data file 136, an alarm display is made by a display device 151 according to the result, and the contents are stored in the travel data storage part 17. When the vehicle reaches the destination, alarm contents during the travel are read out of the travel data storage part 17 to make a total evaluation, and the evaluation result is displayed by the display device 151. It can be evaluated at any time whether or not the state of the travel to the destination is proper, and by totally evaluating the travel state of the whole distance, this device contributes to the improvement of safety and proper driving.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device, and for example, to a navigation device which can evaluate whether or not a traveling speed of a vehicle or an inter-vehicle distance is appropriate to contribute to improvement of driving technique. .

[0002]

2. Description of the Related Art In recent years, for drivers who are unfamiliar with geography,
A navigation device for guiding a route to a desired destination has been actively developed and put into practical use. In a conventional navigation device, a map is displayed on a display such as a liquid crystal display, and a destination input by the driver on the map, a route to the destination searched by the route search, the position of the own vehicle while traveling, and The running locus up to that point is displayed in an overlapping manner. The driver can obtain the route information to be followed by sequentially referring to this display, and can reach the destination by moving according to the instruction of the traveling direction. Therefore, such a navigation device
It is excellent in that it can guide the vehicle to the destination.

[0003]

However, in spite of the widespread use of such navigation devices and the improvement of vehicle performance, the quality of the driving technique depends solely on the skill of the driver. Can not contribute to the improvement of driving skills. Therefore, there has been a demand for the appearance of a new device that can evaluate whether or not the traveling of the vehicle is appropriate and thereby contribute to the improvement of the driving technique.

Therefore, an object of the present invention is to provide a guide device which can evaluate whether or not a vehicle is suitable for driving and contribute to improvement of driving technique.

[0005]

According to a first aspect of the invention, traveling reference data is stored which is data corresponding to a position of a road on which a vehicle travels and which is traveling reference data serving as a reference for evaluating traveling of the vehicle. Storage means, travel route acquisition means for obtaining the travel route of the vehicle, current position detection means for detecting the current position of the vehicle, travel state detection means for detecting the traveling state of the vehicle while traveling, and the current position detection The travel position obtained by the travel route acquisition means from the travel state of the vehicle detected by the travel state detection means and the travel reference data stored in the travel reference data storage means at the current position detected by the means. The above-mentioned object is achieved by providing a guide device with a travel evaluation means for evaluating the travel of a vehicle along a route. According to a second aspect of the present invention, in the guide apparatus according to the first aspect, the traveling reference data storage means includes a speed limit, an inter-vehicle distance, a temporary stop, one-way traffic, acceleration, blinker timing, and lane change timing. At least one of them is stored as travel reference data.

[0006]

According to the guide apparatus of the present invention, the traveling reference data storage means stores traveling reference data which is data corresponding to the position of the road on which the vehicle is traveling and which is a reference for evaluating traveling of the vehicle. Keep it. A travel route is acquired by the travel route acquisition means. The current position detection means detects the current position of the vehicle, and the traveling state detection means detects the traveling state of the vehicle while traveling. The traveling evaluation means is based on the traveling state of the vehicle detected by the traveling state detecting means and the traveling reference data stored in the traveling reference data storage means at the present position detected by the present position detecting means and the traveling route obtaining means. Evaluate the travel of the vehicle on the travel route acquired in. In the guide device according to claim 2, the traveling reference data storage means stores at least one of speed limit, inter-vehicle distance, temporary stop, one-way traffic, acceleration, blinker timing, and lane change timing as traveling reference data. Memorize as.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the guide device of the present invention will be described in detail below with reference to FIGS. 1 to 5 using a navigation device as an example. FIG. 1 shows a circuit configuration of a navigation device according to a first embodiment of the present invention. This navigation device includes a navigation processing unit 11 that controls the entire route guidance. The navigation processing unit 11 includes a route search unit 13, an absolute position detection unit 14, and an output unit via a bus line 12 such as a data bus. 15,
It is connected to the traveling data detection unit 16 and the traveling data storage unit 17. The navigation processing unit 11 functions as a route searching unit together with the route searching unit 13, functions as a current position detecting unit together with the absolute position detecting unit 14, and functions as a traveling data detecting unit together with the traveling data detecting unit 16.
Further, it functions as a travel data evaluation unit together with the output unit 15.

The navigation processing unit 11 includes a CPU (central processing unit) 111, a route search process, a current position search process,
And a ROM 112 in which various programs for performing a process of evaluating traveling data, which will be described later, are stored,
The RAM 113 is provided as a working memory.
The navigation processing unit 11 detects the current traveling position of the vehicle by map matching processing from the absolute value detected by the absolute position detecting unit 14 and displays the traveling position and the like on the output unit 15. ing.

The route search unit 13 includes an input device 131 and a data file 132. The input device 131 is for inputting the present location (departure point) and destination (arrival point) at the start of traveling, and various input devices 131 such as a touch panel, a keyboard, a mouse, a light pen, a joystick, and a voice recognition device. used. Data file 1
Reference numeral 32 denotes a storage device that stores various data necessary for route guidance of the vehicle, travel evaluation, and the like, and includes a map data file 133, a road data file 135, and a travel reference data file 136. For each of these files, various storage devices such as a floppy disk, a hard disk, a CD-ROM, an optical disk, a magnetic tape, an IC card and an optical card are used. In addition,
It is preferable to use a CD-ROM with a large storage capacity for each file, but individual data such as other data,
An IC card may be used for the data for each area.

Here, in the map data file 133,
A layered map, for example, a map for each layer from the highest layer to Japan, Kanto region, Tokyo, Kanda is stored. The road data file 135 stores, as data necessary for route guidance, the thickness of each road, the length of the road, prohibition information such as entry prohibition, guidance unnecessary information, and the like. As will be described later, the traveling reference data file 136 stores data that serves as a reference for evaluation when the traveling data detected by the traveling data detecting unit 16 during traveling of the vehicle is evaluated. Specifically, it includes speed limit data corresponding to the position of the road on which the vehicle travels, data of the inter-vehicle distance corresponding to the position, data indicating a left turn or right turn, data indicating a stop point, etc. .

The absolute position detecting section 14 uses a GPS (Global Positioning) for measuring the position of the vehicle using an artificial satellite.
(System) receiving device 141, a beacon receiving device 142 that receives position information from a beacon arranged on the road, a direction sensor 143, and a distance sensor 144 are used. In addition,
The GPS receiving device 141 and the beacon receiving device 142 can measure the position independently, but in other cases, the absolute position is detected by the combination of the distance sensor 144 and the direction sensor 143. Here, the azimuth sensor 143 is, for example, a geomagnetic sensor that detects the geomagnetism to obtain the azimuth of the vehicle, a gas rate gyro or an optical fiber gyro that detects the rotational angular velocity of the vehicle and integrates the angular velocity to obtain the azimuth of the vehicle. A gyro, a wheel sensor in which left and right wheel sensors are arranged, and the amount of displacement of the azimuth is calculated by detecting the turning of the vehicle based on the output pulse difference (difference in moving distance), or the like is used. The distance sensor 144 uses various methods such as detecting and counting the number of rotations of the wheel, or detecting acceleration and integrating twice.

The output unit 15 includes a display device 151 and a voice output unit 152. The display device 151 displays the route set according to the user's request and the content of the travel evaluation. A CRT, a liquid crystal display, a plasma display, or the like is used as the display device 151.
Further, as the display device 151, a head-up display device that projects various information on the windshield, for example, a hologram device that projects a video hologram on the windshield, a projector, or the like may be used. The voice output device 152 appropriately outputs voice guidance information and content of the traveling evaluation. As the output information by the voice, a voice recorded on a tape in advance or a synthetic voice by a voice synthesizer is used.

The traveling data detection unit 16 includes a steering sensor 161, a vehicle speed sensor 162, and a lighting detection sensor 1.
63, an obstacle detection sensor 164, and a throttle opening sensor 165. Steering sensor 161
Is a sensor for detecting the actual traveling direction of the vehicle at that time, and for example, an optical rotation sensor attached to the rotating portion of the steering wheel, a rotation resistance volume, or the like is used. Moreover, you may use the angle sensor attached to the wheel part. Furthermore, the traveling direction of the vehicle may be detected by detecting the difference between the inner and outer wheels. The vehicle speed sensor 162 is a sensor for detecting the traveling speed of the vehicle, and for example, a rotary encoder or the like is used. The lighting detection sensor 163 is a sensor for detecting the presence / absence of lighting of a blinker or a headlight, and for example, an optical sensor capable of detecting the presence / absence of light is used. The obstacle detection sensor 164 is a sensor for detecting a distance between vehicles or a distance between a vehicle and an obstacle. Find the interval. The throttle opening sensor 165 is a sensor for detecting the opening of the throttle. For example, the potentiometer moves in conjunction with the throttle valve to output a voltage proportional to the opening of the throttle. Running data storage unit 17
Is a storage device that stores various types of travel data detected by the travel data detection unit 16, such as a readable / writable memory and I
A C card or the like is used.

Next, the operation of the first embodiment thus constructed will be described. In the first embodiment, a route from the current position to the destination is searched, the searched route is guided, and the traveling evaluation mode can be used during the guidance of the route. Here, the traveling evaluation mode detects the traveling state while the vehicle is traveling, evaluates the traveling state at any time, and when the vehicle arrives at the destination, it comprehensively evaluates the traveling state from the starting point to the destination. A series of data processing to be evaluated. FIG. 2 shows a flow chart showing the operation of the first embodiment. In the first embodiment, when the driver inputs the destination to be route-guided by the input device 131 (step 11), the navigation processing unit 11 activates the program stored in the ROM and selects from various files of the data file. A route from the current location (departure location) to the destination is searched (step 12), and the current location is stored in the travel data storage unit 17. When the route search ends and the vehicle starts moving, the navigation processing unit 11 constantly monitors the traveling position where the vehicle is currently traveling by map matching processing from the absolute position of the vehicle detected by the absolute position detection unit 14. By doing so, route guidance of the vehicle is performed (step 13). This route guidance is performed by superimposing and displaying the map and the current position of the vehicle on the display screen of the display device 151.

Next, the navigation processing unit 11 determines whether or not the driver has set the traveling evaluation mode using the input device 131 (step 14). As a result of the determination, when the traveling evaluation mode is not set, it is not necessary to evaluate the traveling, so the process proceeds to step 19.
In step 19, the navigation processing unit 11 determines whether or not the vehicle has arrived at the destination. If the vehicle has not arrived at the destination, the process returns to step 13. Therefore, when the traveling evaluation mode is not set, only route guidance is performed.

On the other hand, when the traveling evaluation mode is set, the navigation processing unit 11 inputs the traveling data detected by the traveling data detecting unit 16 and simultaneously inputs the current position detected by the absolute position detecting unit 14. (Step 15). The traveling data to be input include traveling speed detected by the vehicle speed sensor 162 and the lighting detection switch 163.
The presence / absence of blinkers and headlights detected by the vehicle, the distance between vehicles detected by the obstacle detection sensor 164, and the like. In the next step 16, the navigation processing unit 11
Compares the input travel data with reference data or the like which is stored in the travel reference data file 136 and corresponds to the current position of the vehicle and serves as a reference for evaluation, and the input travel data exceeds the reference. It is determined whether a warning is required for the driver (step 16). As a result, when it is determined that the warning is necessary, for example, the display device 151
On the display screen of, warning indications such as "speeding violation", "forgotten turn signal", "vehicle distance violation", etc. are displayed (step 17). Next, the content of the warning is stored in the traveling data storage unit 17 (step 18).

On the other hand, when it is determined in step 16 that the warning is not necessary, the navigation processing unit 1
1 determines whether or not the vehicle has arrived at the destination (step 19). If the vehicle has not arrived at the destination, the above-mentioned steps 13 to 18 are repeated. Next, when the navigation processing unit 11 determines in step 19 that the vehicle has reached the destination, the process proceeds to step 20 and determines whether or not the vehicle is in the travel evaluation mode. As a result, in the traveling evaluation mode, the navigation processing unit 11 displays the content of the above warning in the traveling data storage unit 17
From the display device, and after comprehensively evaluating the content of the read warning, the evaluation result is displayed.
1 is displayed (step 21).

FIG. 3 is a flow chart showing an example of comprehensive evaluation of running data. Comprehensive evaluation of driving data is performed as follows. That is, the navigation processing unit 11 reads the warning content stored in the traveling data storage unit 17 and obtains the warning occurrence rate r per unit distance (step 31). This warning occurrence rate r
Is the number of warnings divided by the number of evaluations from the start point to the destination. Therefore, for example, when the number of warnings is 10 and the number of evaluations from the start point to the destination is 100, the warning occurrence rate r is 0.1. Then, when the obtained warning occurrence rate r is 0.1 or less, a green lamp is displayed on the display screen of the display device 151 in order to indicate that the driving is good (step 3
2, 35), and when the warning occurrence rate r is from 0.1 to 0.3, a yellow lamp is displayed on the display screen of the display device 151 to indicate that the operation was slightly defective (step 32, 33, 36). Also, the warning occurrence rate r is 0.3
From 0.5 to 0.5, a red lamp is displayed on the display screen of the display device 151 (steps 33, 34, 37) in order to indicate that the operation is defective, and the warning occurrence rate r is 0. If the number is 5 or more, the voice output unit 152 outputs a voice such as "It was reckless driving" in order to notify that reckless driving was caused due to too many warnings (steps 34 and 3).
8).

As described above, according to the first embodiment, when the driver moves to the destination according to the route guidance,
Whether or not the vehicle's driving condition is appropriate can be evaluated at any time, and when the vehicle arrives at its destination, it can comprehensively evaluate the driving condition of the entire traveled route of the vehicle, contributing to improved safe driving and proper driving. it can.

In the comprehensive evaluation of the travel data in the first embodiment, the travel data storage unit 1 is operated in step 18.
The warning contents stored in 7 are used for evaluation. However, the travel data input in step 15 may be temporarily stored in the travel data storage unit 17 and the comprehensive evaluation may be performed based on the travel data during the comprehensive evaluation. In addition to traveling speed and inter-vehicle distance, traveling locus, acceleration, elapsed time (time of departure point, main point, and destination), lane change timing, etc. are obtained as traveling data of the vehicle, and each of these traveling Once the data is stored in the traveling data storage unit 17, when the vehicle arrives at the destination and the traveling state is comprehensively evaluated, the number of evaluation items increases and more appropriate evaluation can be realized. Furthermore, if an IC card is used as the travel data storage unit 17 and the above-mentioned travel data is recorded in this IC card, it is easy to refer to or violate the required time when traveling on the same route at a later date. Since it is possible to check the dangerous area, etc., it can be used as data when the driver determines whether to drive on a route different from the previous one. Further, when the vehicle is traveling or when the traveling state is comprehensively evaluated, the traveling route, the warning position, and the like are displayed as icons on the display device, so that the contents can be easily known, which is convenient. Further, if the warning content is output to the display device 151 or the voice output unit 152 while the vehicle is traveling,
The driver can be alerted in real time. For example, if the start of lighting of the turn signal is delayed with respect to the operation of changing lanes or turning left or right, or if the lighting time is short, a warning to that effect is issued after changing lanes or turning left or right. Further, even if the vehicle does not stop at the stop position, it is effective to warn that immediately after that.

Next, a second embodiment of the present invention will be described. The second embodiment is mounted on a training vehicle for obtaining a driver's license,
When traveling a predetermined learning course, the driving of the trainee is evaluated (running evaluation).
Therefore, the circuit configuration of the second embodiment is similar to that of the first embodiment, and the processing of the data is different, so only the data processing will be described later. FIG. 4 shows the training content of a training vehicle for obtaining a driver's license, evaluation standard data corresponding to the training content, traveling record data, necessary sensors, evaluation standards, and an output mode of evaluation. Second
In the embodiment, since the training course (travel route) is predetermined, the evaluation reference data on each road as shown in FIG. 4 is stored in advance in the travel reference data file 136. Then, during the training of the training car, the navigation processing unit 11 inputs the travel data detected by the travel data detection unit 16 and at the same time the current position detected by the absolute position detection unit 14, and learns these data. Raw-only IC
The data is stored in the traveling data storage unit 17 including a card. As the traveling data to be input, the traveling speed detected by the vehicle speed sensor 162, presence / absence of lighting of a blinker or headlight detected by the lighting detection switch 163, an inter-vehicle distance detected by the obstacle detection sensor 164, and the like shown in FIG. It is the travel record data of.

The navigation processing unit 11 compares the input traveling data with the reference data stored in the traveling reference data file 136 and serving as an evaluation reference corresponding to the current position of the training vehicle, and then inputting the traveling data. Will exceed the standard and judge whether a warning is required for the trainee. As a result, when it is determined that the warning is necessary, for example, after displaying a warning such as "speed violation", "forgotten turn signal", or "vehicle distance violation" on the display screen of the display device 151. The warning content is stored in the traveling data storage unit 17. After that, when the lesson ends and there is an instruction to evaluate the lesson content from the input device 131, the navigation processing unit 11 reads the warning content from the travel data storage unit 17 and displays the read warning content and travel locus. The deviation or the like is displayed on the display device 151.

As described above, according to the second embodiment, when the trainee travels the training course in the training car for obtaining the driver's license, the quality of the training content can be evaluated at any time during the training and the training can be performed. After the completion of the, the trainee can know the content of the violation of the lesson and his or her faults.

In the second embodiment, the teaching course is run under the guidance of the instructor to evaluate the lesson content. However, the instruction course is guided on behalf of the instructor and the lesson content is displayed. You may evaluate. Further, it is not necessary to evaluate all of the evaluation items shown in FIG. 4, and one or a plurality of specific evaluation items may be appropriately selected by the input device and the selected items may be evaluated.

Next, a third embodiment of the present invention will be described. In the third embodiment, the route search from the current position to the destination as described in the first embodiment is performed, and the data processing for moving to the destination according to the guidance of the searched route is not performed, and the vehicle is arbitrarily selected. The traveling evaluation mode can be used while traveling on the road. Here, the traveling evaluation mode is a series of data for detecting traveling data related to the traveling state of the vehicle at the current position, sequentially evaluating the detected traveling data, and comprehensively evaluating the traveling data as necessary. Refers to processing. Therefore, the circuit configuration of the third embodiment is the same as that of the first embodiment, and only the data processing is different as shown in FIG. 5, so only the data processing will be described later.

FIG. 5 shows processing of data according to the third embodiment of the present invention. In the third embodiment, when the driver sets the traveling evaluation mode using the input device 131 while the vehicle is traveling on an arbitrary road, data processing as shown in FIG. 5 is performed. That is, the navigation processing unit 11 sets the count value n of the counter to “0” (step 41) and then starts the timer (step 42) in order to count the number of speed limit violations, for example. Next, the absolute position detector 13 measures the current position of the vehicle (step 43) and inputs the vehicle speed V detected by the vehicle speed sensor 162 (step 44). Navigation processing unit 11
Indicates that the input vehicle speed V is the speed limit V at the current position.
It is determined whether or not m is exceeded (step 45).
Since the speed limit Vm is stored in the travel reference data file 136 according to the current position where the vehicle is traveling,
Use that data. When the vehicle speed V exceeds the speed limit Vm and the speed limit is violated, the count value n of the counter is increased by "1" (step 46), and then the difference D between the vehicle speed V and the speed limit Vm, that is, the speed limit is reached. The excess of the speed exceeding the speed is stored in the traveling data storage unit 17 (step 47).

Next, the navigation processing section 11 determines whether or not the count value n of the counter exceeds a preset allowable value (threshold value) TH (step 48).
When the count value n of the counter exceeds the allowable value TH, a red lamp warning is displayed on the display screen of the display device 151 in order to make the driver strictly observe the speed limit (step 49). On the other hand, when the count value n of the counter is less than the allowable value TH, a green lamp is displayed on the display screen of the display device 151 each time in order to urge the driver to keep the speed limit (step 49). .

Next, in step 51, the navigation processing section 11 determines whether or not there is a comprehensive evaluation instruction from the driver using the input device 131. If there is no comprehensive evaluation instruction, the navigation processing portion 11 proceeds to step 52. move on. Step 52
Then, the navigation processing unit 11 determines whether or not the timer has passed 10 seconds, and when the timer has passed 10 seconds, the process returns to step 42 to restart the timer and repeats the processing from step 43 to step 51. . After that, in step 51, when it is determined that the vehicle has arrived at the destination, or if there is an instruction from the driving vehicle for the comprehensive evaluation while the vehicle is traveling, in the next step 53, the overall evaluation is performed. I do. This comprehensive evaluation is performed by referring to the number of violations stored in the counter and the amount of overspeed stored in the traveling data storage unit 17 at step 47 for each violation. Then, the content of the evaluation is displayed on the display device 151 (step 5).
4).

As described above, according to the third embodiment, while the vehicle of the driver is traveling on an arbitrary road, it is possible to evaluate at any time whether the traveling state of the vehicle is suitable, When the vehicle arrives at the destination, it is possible to comprehensively evaluate the state of the traveling process up to that time, if necessary, which can contribute to the improvement of safe driving and aptitude driving. In the case of the third embodiment, the driving ability of the driver can be changed by changing the allowable value (threshold value) at the time of judgment in step 48 according to the driving ability of the driver, for example, advanced, intermediate, and beginner. You can evaluate the driving in proportion to.

[0030]

According to the present invention, the running evaluation means stores the running state of the vehicle detected by the running state detecting means at the current position detected by the current position detecting means in the running reference data storage means. Since the traveling of the vehicle is evaluated based on the traveling reference data, it is possible to objectively evaluate whether or not the traveling of the vehicle is appropriate and contribute to the improvement of the driving technique.

[Brief description of drawings]

FIG. 1 is a circuit configuration diagram of a navigation device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the navigation device of the above.

FIG. 3 is a flowchart showing an operation in the case of comprehensive evaluation of a running state of the navigation device.

FIG. 4 is a table showing training content of a training vehicle for obtaining a driver's license, evaluation standard data corresponding to the training content, traveling record data, necessary sensors, evaluation standard, and output mode of evaluation.

FIG. 5 is a flowchart showing an operation in a third embodiment of the present invention.

[Explanation of symbols]

 11 Navigation Processing Unit 111 CPU 112 ROM 113 RAM 13 Route Search Unit 131 Input Device 132 Data File 133 Map Data File 135 Road Data File 136 Driving Evaluation Reference Data File 14 Absolute Position Detection Unit 141 GPS Receiver 142 Beacon Receiver 143 Direction Sensor 144 distance sensor 15 output unit 151 display device 152 audio output unit 16 running data detection unit 161 steering sensor 162 vehicle speed sensor 163 lighting detection sensor 164 obstacle detection sensor 165 throttle opening sensor 17 running data storage unit

Claims (2)

[Claims] 1. A traveling reference data storage unit that stores traveling reference data, which is data corresponding to a position of a road on which the vehicle travels and is a reference for evaluating traveling of the vehicle, and traveling for acquiring a traveling route of the vehicle. Route acquisition means, current position detection means for detecting the current position of the vehicle, running state detection means for detecting the running state of the vehicle while traveling, at the current position detected by the current position detection means,
A running state of the vehicle detected by the running state detecting means,
A guide device comprising: a travel evaluation unit that evaluates the travel of the vehicle on the travel route acquired by the travel route acquisition unit based on the travel reference data stored in the travel reference data storage unit. . 2. The travel reference data storage means stores at least one of speed limit, inter-vehicle distance, temporary stop, one-way traffic, acceleration, blinker timing, lane change timing as travel reference data. The guide device according to claim 1, wherein the guide device is provided.