JP3662421B2 - In-vehicle device operation instruction system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation instruction method for an in-vehicle device that gives various operation instructions to an in-vehicle device such as a navigation device or an audio device.
[0002]
[Prior art]
Various in-vehicle devices such as an audio device and a navigation device are mounted on the vehicle. In general, these in-vehicle devices have operation keys corresponding to various functions, and an operation corresponding to a desired function is executed by pressing any one of the operation keys. For example, in the case of an audio apparatus having a CD playback function, operation keys such as play, stop, fast forward, and eject are provided, and music recorded on a CD is played by pressing the play key.
[0003]
[Problems to be solved by the invention]
By the way, the above-described various in-vehicle devices have various operation keys to perform many functions of each, and the number of operation keys tends to increase as the number of functions of the devices increases. . Therefore, when these operation keys are arranged on the front part without changing the size of the casing of the in-vehicle device, it is necessary to reduce the interval between the operation keys or reduce the size of each operation key. There was a problem that it was difficult to operate while the vehicle was running. For example, while driving a vehicle, it is difficult for the driver to select the operation key after reading characters or the like stamped on or around the operation key, so a small operation key that instructs execution of a desired operation It was not easy to press accurately. The same applies to passengers, and it is not easy to accurately press a desired operation key while the vehicle is traveling on an uneven road or a road with continuous curves.
[0004]
In addition, among the many operation keys provided in the various on-vehicle devices described above, there are cases where there is a key that does not need to be operated during traveling, and there is a large deviation in the frequency of operations. For example, when a navigation device is considered as a vehicle-mounted device, if a function for specifying and registering an arbitrary point is provided, such a registration operation is rarely performed while the vehicle is running. On the other hand, when considering an audio device during CD playback, fast-forward keys and eject keys are frequently used. As described above, although the frequency of actual use is different, the arrangement of the operation keys is fixed, so that a desired operation key can be selected from many operation keys including operation keys that are not frequently used by the driver. Therefore, the operability was not good. In particular, when the vehicle is traveling, it is not possible to spend a lot of time selecting the operation keys, and it is not possible to gaze at each operation key, so an operation method that can easily select a desired operation key is desired. It was.
[0005]
The present invention has been created in view of the above points, and an object thereof is to provide an operation instruction method for an in-vehicle device that can improve the operability of the in-vehicle device.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, in the operation instruction method for the in-vehicle device according to the present invention, one or more of the functions of the in-vehicle device to be executed at that time is selected according to the traveling state of the vehicle. A plurality of functions are selected, and operation keys corresponding to the selected functions are assigned. In this way, the functions that can be executed according to the traveling state of the host vehicle are narrowed down, and the operation keys are assigned for each function, so in the traveling state where detailed operations are difficult, the minimum necessary functions and A frequently used function can be executed by operating an operation key that is easy to operate, and the operability of the in-vehicle device can be improved.
[0007]
In particular, as the above-described travel state, it is preferable to consider the travel speed of the vehicle and the degree of complexity of the road shape on which the vehicle travels. As the driving speed of the vehicle increases or the road shape becomes more complicated, detailed operations become more difficult. Therefore, by reducing the executable functions to be selected, only simple operations will be performed. It is possible to improve the performance.
[0008]
When the functions that can be executed according to the running state of the vehicle are reduced, it is preferable to group a plurality of operation keys so that the same functions correspond to the operation keys included in each group. In other words, since the same function is executed when operating a plurality of operation keys within a certain range, the operator can select a desired function without performing detailed operations, further improving operability. Can be made.
[0009]
In addition to the case where switches having physical contacts are used, the operation key described above displays an image corresponding to the operation key on the display device, and the touch panel indicates that the image is indicated. You may make it detect using. In this case, since the arrangement of the operation keys displayed on the display device can be freely changed, the arrangement and size of the operation keys are reduced when the functions that can be executed according to the traveling state of the vehicle are narrowed down. The operability can be improved by changing.
[0010]
In addition, instead of selecting a function that can be executed according to the running state as described above, it is also equivalent to changing the setting of the operation key with an effective execution instruction and the operation key with an invalid execution instruction according to the running state. An effect is obtained. That is, for example, as the vehicle travel speed increases or the road shape becomes more complex, the number of operation keys with effective operation instructions is reduced, thereby preventing a malfunction when performing a rough operation and ensuring a desired function. Therefore, the operability can be improved.
[0011]
In addition, as described above, even when the number of operation keys that can be executed according to the running state and the effective operation instructions are increased / decreased, when the predetermined operation instruction is performed using the remote control unit, all It is preferable to enable the conventional operation using the operation key. Passengers other than the driver can often perform detailed operations while paying attention to many operation keys, so if the passengers etc. give various operation instructions using the remote control unit, Regardless of the running state, the various functions of the in-vehicle device can be fully utilized.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An audio system according to an embodiment to which an operation instruction method for an in-vehicle device according to the present invention is applied selects a function to be executed according to the traveling state of the host vehicle, and operation keys corresponding to the selected function. It is characterized by changing the allocation of. Hereinafter, an audio system according to an embodiment will be described with reference to the drawings.
[0013]
(1) Configuration of audio system
FIG. 1 is a diagram showing an overall configuration of an audio system according to an embodiment to which the present invention is applied, and shows a configuration of a complex system having a function as a navigation device. The audio system 100 shown in the figure includes a navigation device 20 that performs a predetermined navigation operation, a cassette tape deck 22 that is an audio source, an operation unit 24 that gives various operation instructions, and an audio control that controls the cassette tape deck 22. The unit 26 includes an amplifier 28 that amplifies the audio signal, and a speaker 30 that outputs the audio signal.
[0014]
The navigation device 20 includes a vehicle position detection unit 2 that detects the vehicle position, a CD-ROM reader 4 that reads a CD-ROM in which map data for performing navigation operations such as route search is recorded, and the like. The map data memory 6 that temporarily stores the read map data, the navigation control unit 8 that controls the entire navigation device 20 to perform a predetermined navigation operation such as a route search, and the navigation operation by the navigation control unit 8 It includes a memory 10 for storing the obtained processing results and a display device 12 for displaying a map image and the like around the host vehicle.
[0015]
The own vehicle position detection unit 2 includes, for example, a GPS receiver, an orientation sensor, a distance sensor, and the like, measures an accurate position of the own vehicle at a predetermined timing, and performs navigation control using the measurement result as own vehicle position data. Output to unit 8.
[0016]
The navigation control unit 8 performs a predetermined navigation operation. For example, the navigation control unit 8 reads out a predetermined range of map data around the vehicle from the map data memory 6 based on the vehicle position data output from the vehicle position detection unit 2, creates a map image, and A mark image indicating the vehicle position is superimposed and displayed on the display device 12. In addition, the navigation control unit 8 reads out a predetermined range of map data including the departure point and the destination from the map data memory 6 during the route search, searches for an optimum route connecting the departure point and the destination, and searches The result is stored in the memory 10. Further, the navigation control unit 8 calculates the vehicle speed based on the vehicle position data output from the vehicle position detection unit 2 and outputs the calculation result to the audio control unit 26.
[0017]
The operation unit 24 includes a plurality of operation keys corresponding to various functions of the cassette tape deck 22. FIG. 2 is a diagram illustrating an example of the operation unit 24. The operation unit 24 shown in the figure includes 20 operation keys 25a to 25u corresponding to a plurality of functions (for example, reproduction, fast forward, etc.) of the cassette tape deck 22. The user can give execution instructions corresponding to various functions such as reproduction and fast-forwarding to the audio system 100 by pressing the operation keys 25a to 25u.
[0018]
The audio control unit 26 performs execution control of various functions of the cassette tape deck 22 based on a signal corresponding to the execution instruction output from the operation unit 24 and amplifies the audio signal output from the cassette tape deck 22 To 28. This audio signal is amplified by the amplifier 28 and output from the speaker 30.
[0019]
Also, the audio control unit 26, based on the calculation result of the own vehicle speed output from the navigation control unit 8 and the execution function selection table, corresponds to one or a plurality of execution targets corresponding to the current vehicle speed. Select a function.
[0020]
FIG. 3 is a diagram illustrating an example of the execution function selection table. The execution function selection table shown in the figure associates the traveling speed of the own vehicle with the functions that can be executed for each speed. For example, when the traveling speed is 10 km / h or less, all functions can be executed. In addition, when the traveling speed is included in the range of 10 to 60 km / h, only three functions of “play”, “fast forward”, and “rewind” can be executed, and other functions are excluded from execution targets. Is done. Furthermore, when the traveling speed is 60 km / h or higher, only two functions of “playback” and “pause” can be executed, and all other functions are excluded from execution targets. The execution function selection table is stored in, for example, a built-in memory (not shown) of the audio control unit 26.
[0021]
Furthermore, the audio control unit 26 groups the 20 operation keys 25a to 25u provided in the operation unit 24 together in the arrangement position, and groups them into one or more operation keys included in each group. An operation key assignment process is performed to correspond to the same function that can be executed at the time.
[0022]
The vehicle position detection unit 2 and the navigation control unit 8 described above are the traveling state determination unit, the operation unit 24 is the operation unit, the audio control unit 26 is the execution function selection unit and the operation key assignment unit, the audio control unit 26 and the cassette. Each tape deck 22 corresponds to a function execution unit.
[0023]
(2) Audio system operation
The audio system 100 of the present embodiment has the above-described configuration, and the operation thereof will be described next. FIG. 4 is a flowchart showing an operation procedure in the audio system 100 when an executable function is selected according to the traveling state of the own vehicle.
[0024]
The own vehicle position detection unit 2 measures the own vehicle position at a predetermined timing by a built-in GPS receiver, direction sensor, distance sensor, etc., and sends the measurement result to the navigation control unit 8 as own vehicle position data. (Step 100). The navigation control unit 8 calculates the host vehicle speed based on the input host vehicle position data (step 101).
[0025]
The audio control unit 26 selects one or more functions to be executed at that time based on the vehicle speed calculated by the navigation control unit 8 and the execution function selection table shown in FIG. 102). For example, when the traveling speed of the vehicle calculated by the navigation control unit 8 is 50 km / h, the audio control unit 26 can be executed at that time based on the execution function selection table shown in FIG. Select “Play”, “Fast forward” and “Rewind” as the function.
[0026]
Next, the audio control unit 26 classifies the 20 operation keys 25a to 25u provided in the operation unit 24 into a plurality of groups, and can execute at that time one or more operation keys included in each classified group. Assigning operation keys to correspond to various functions.
[0027]
For example, when the traveling speed of the vehicle is 50 km / h and the three functions “play”, “fast forward”, and “rewind” are selected in step 102 described above, the audio control unit 26 As shown in FIG. 5, the operation keys 25a to 25u that are arranged close to each other are combined and classified into three groups A, B, and C. Then, the “rewind” function is assigned to the six operation keys 25a to 25f included in the group A, and the “play” function is included in the group C to the six operation keys 25g to 25m included in the group B. The “fast forward” function is assigned to each of the eight operation keys 25n to 25u.
[0028]
Further, when the vehicle traveling speed is 60 km / h or more and two functions of “playback” and “pause” are selected in the above-described step 102, the audio control unit 26 is shown in FIG. As described above, the 20 operation keys 25a to 25u that are arranged close to each other are combined into two groups D and E. Then, the “pause” function is assigned to the six operation keys 25a to 25f included in the group D, and the “play” function is assigned to the 14 operation keys 25g to 25u included in the group E.
[0029]
When the function assignment process for the operation keys is completed in this manner, the audio control unit 26 next determines whether any of the operation keys included in the operation unit 24 has been pressed (step 104). If no operation key is pressed, this determination process is repeated. When one of the operation keys is pressed, the rare audio control unit 26 executes a function executable at that time assigned to the pressed operation key (step 105). For example, when any one of the six operation keys 25g to 25m shown in FIG. 5 is pressed, a reproduction operation is instructed to the cassette tape deck 22, and a cassette tape (not shown) is set. ) Is recorded.
[0030]
Thus, in the audio system 100 of the present embodiment, the vehicle speed is calculated by the navigation control unit 8 of the navigation device 20, and the audio control unit 26 selects the calculated vehicle speed and execution function. Based on the table, one or more functions to be executed at that time are selected, and the operation keys arranged close to each other are collected and grouped, and then the operation keys included in the same group Assign the same function. As the running speed increases, the functions to be executed are limited to the frequently used functions and the minimum necessary functions. By reducing the number of functions, the operation itself can be simplified and the operability can be improved. it can. In particular, in response to a decrease in executable functions, the same function can be assigned to a plurality of operation keys arranged close to each other, so that operation instructions for a desired function can be performed without performing detailed operations. As a result, the number of erroneous operations is reduced and the operability can be further improved.
[0031]
In the above-described embodiment, the number and contents of functions to be executed are changed according to the traveling speed of the vehicle, but the number and contents of functions that can be executed are changed based on factors other than the traveling speed. You may make it do. For example, instead of the traveling speed, the complexity of the shape of the road on which the vehicle travels (whether it is an expressway, whether there is a curve, etc.) may be used.
[0032]
The determination as to whether or not the vehicle is traveling on a highway or a road with continuous curves can be made based on map data recorded on a CD-ROM. The map data recorded on the CD-ROM is based on the leaves separated by the specified longitude and latitude. The map data of each leaf can be specified and read by specifying the leaf number. It becomes. In addition, the map data for each map leaf includes (1) a drawing unit composed of various data necessary for map display, and (2) data necessary for various processes such as map matching, route search, and route guidance. Road unit and (3) intersection unit consisting of detailed data of the intersection. Further, the drawing unit described above has a background necessary for displaying the VICS conversion layer data necessary for identifying the corresponding road based on the traffic jam information sent from the VICS center and the buildings or rivers. Layer data and character layer data necessary for displaying a city name, a road name, and the like are included.
[0033]
In the road unit described above, a line connecting a certain intersection on the road with another adjacent intersection or the like is called a link, and a point connecting two or more links is called a node. FIG. 7 is a diagram showing the overall configuration of the road unit described above. As shown in the figure, the road unit includes a unit header for identifying the road unit, a connection node table storing detailed data of all nodes, and a node table indicating a storage position of the connection node table. And a link table storing detailed data of links specified by two adjacent nodes.
[0034]
FIG. 8 is a diagram showing detailed contents of various tables included in the road unit. As shown in FIG. 8 (A), the node table stores node records # 0, # 1,... Corresponding to all the nodes included in the drawing of interest. Each node record is given a node number from # 0 in the order of arrangement, and indicates the storage position of the connection node table corresponding to each node.
[0035]
In addition, as shown in FIG. 8B, the connection node table is provided for each existing node.
a. Normalized longitude / latitude,
b. "Node attribute flag" consisting of an intersection node flag indicating whether or not this node is an intersection node, an adjacent node flag indicating whether or not the node is at the boundary with other leaves,
c. "Number of connected nodes", which indicates the number of nodes that make up the other end of each link when there is a link with this node as one end of the link,
d. If the link connected to this node has traffic restrictions such as right turn prohibition or U turn prohibition, the "number of traffic restrictions"
e. Connection node records for the number of links indicating the link number of each link where this node is one end,
f. A traffic regulation record showing the specific contents of the traffic regulation corresponding to the number of traffic regulations mentioned above,
g. If this node is a node at the boundary with another leaf, an “adjacent node record” indicating the position of the connection node table of the corresponding node in the adjacent leaf,
h. If this node is an intersection node, the storage location and size of the corresponding intersection record in the intersection unit;
Etc. are included.
[0036]
Further, as shown in FIG. 8C, the link table includes a plurality of link records in the order of link numbers corresponding to all the links included in the drawing of interest. Each of these link records
a. Link ID, which is a code attached to each link mainly for the search route display,
b. Node number 1 and node number 2 identifying two nodes located at both ends of the link,
c. Link distance,
d. The cost in minutes of the time required to pass this link,
e. Various road attribute flags including a VICS link correspondence flag indicating whether or not this link corresponds to a VICS link managed by the VICS center,
f. A road type flag indicating the type of whether the actual road corresponding to this link is a highway or a general road,
g. The route number given to the road corresponding to this link,
Etc. are included.
[0037]
For example, when selecting a function to be executed while traveling on an expressway, the navigation control unit 8 generates map data around the vehicle position based on the vehicle position data output from the vehicle position detection unit 2. And the map data around the vehicle position is analyzed to determine whether the road on which the vehicle is currently traveling is an expressway. Specifically, the navigation control unit 8 determines that the road on which the vehicle is currently traveling is an expressway by analyzing the “road type flag” of the link record shown in FIG. Then, the determination result is output to the audio control unit 26. The audio control unit 26 selects one or a plurality of functions that can be executed when traveling on a highway based on the determination result.
[0038]
When selecting a function to be executed while traveling on a road with continuous curves, the navigation control unit 8 reads map data around the vehicle position based on the vehicle position data, and By analyzing the surrounding map data, it is determined whether or not the road on which the vehicle is currently traveling is a road with continuous curves.
[0039]
FIG. 9 is a diagram illustrating an example of node setting on a curved road. On the curved road, nodes are set as shown from A to E in FIG. The navigation control unit 8 analyzes the “normalized longitude / latitude” of the connection node table shown in FIG. 8B for several consecutive nodes corresponding to the road on which the vehicle is currently traveling, It is possible to determine whether or not the road on which the vehicle is currently traveling is a road with continuous curves.
[0040]
If the navigation control unit 8 determines that the vehicle is traveling on a road with continuous curves, the audio control unit 26 can be executed while traveling with a road having a continuous curve based on the determination result. Select one or more functions.
[0041]
When a road to be traveled is determined as in the route guidance, the navigation control unit 8 determines whether the road ahead is not only a road that is currently traveling, It may be determined whether the road is a continuous curve.
[0042]
Thus, based on the complexity of the road shape, etc., the functions to be executed when traveling on the road are selected, the operation keys arranged close to each other are collected and grouped, and then the same group Assign the same function to the operation keys included in. As the complexity of the road shape increases, the functions to be executed are limited to the frequently used functions and the minimum necessary functions. By reducing the number of functions, the operation itself is simplified and the operability is improved. Can be made. In particular, in response to a decrease in executable functions, the same function can be assigned to a plurality of operation keys arranged close to each other, so that operation instructions for a desired function can be performed without performing detailed operations. As a result, the number of erroneous operations is reduced and the operability can be further improved.
[0043]
Also, as shown in FIG. 10, a touch panel 14 is attached to the display screen of the display device 12 constituting the navigation device 20, and operation instructions for various functions are provided by directly pointing to the mark images of the operation keys displayed on the screen. May be performed. For example, when the function to be executed is changed in accordance with the traveling state of the vehicle, information on the function that can be executed at that time from the audio control unit 26 to the navigation control unit 8 (execution function data) Will be sent. The navigation control unit 8 creates a predetermined mark image based on the execution function data and displays it on the display device 12.
[0044]
FIG. 11 is a diagram illustrating an example of a display screen on which mark images corresponding to executable operation keys are displayed. For example, when three functions of “play”, “fast forward”, and “rewind” are selected by the audio control unit 26, as shown in FIG. 11, “play”, “fast forward”, “rewind” are performed. A mark image corresponding to each function is displayed in a large and easy-to-see position. When any mark image is pointed out by the user, the pointed position is detected by the touch panel 14. Based on the detection signal output from the touch panel 14, the audio control unit 26 can determine which function's mark image has been pointed out, and executes the pointed function. Since the display device 12 is normally used for displaying a map image or the like, it is preferable to display the mark image so that the map image or the like is transmitted as shown in FIG.
[0045]
In the above-described embodiment, the execution instruction is performed by pressing the operation keys 25a to 25u provided in the operation unit 24. However, as in the audio system 200 illustrated in FIG. A remote control (remote control) unit 232 as an operation unit and a remote control light receiving unit 233 that receives an infrared signal output from the remote control unit may be provided, and an operation unit different from the operation unit 24 may be used in combination. As described above, when various operation instructions are separately performed using the remote control unit 232, the functions to be executed are not limited according to the running state as described in the above-described embodiment, but all functions are always performed. It is preferable to be able to issue a function execution instruction. That is, when a passenger other than the driver uses the remote control unit 232, it is possible to perform some fine operations and to perform many functions of the audio system 200.
[0046]
In the above-described embodiment, when the number of functions to be implemented decreases, the operation keys 25a to 25u provided in the operation unit 24 are classified into a plurality of groups, and are the same as all operation keys belonging to each group. However, such a grouping is not performed, and one operation key may be associated with each function.
[0047]
In the above-described embodiment, the operation instruction method for executing various functions of the cassette tape deck 22 has been described. However, the audio source (FM / AM tuner, CD player, etc.) other than the cassette tape deck 22 has. The present invention can also be applied when executing various functions or when executing various functions other than the audio device, for example, a navigation device.
[0048]
Further, in the above-described embodiment, when a function that can be executed is changed according to the running state of the vehicle, a predetermined message to that effect is displayed on the screen of the display device 12 or a voice message with the same meaning is displayed. You may make it output from the speaker 30. FIG.
[0049]
In the above-described embodiment, the function to be executed is selected according to the traveling state of the vehicle. Instead of selecting the function, each of the operation keys provided in the operation unit 24 is pressed. Sometimes, the operation key with which the operation instruction given to the audio device 26 is valid and the invalid operation key may be appropriately changed. For example, increasing the number of operation keys with invalid operation instructions when the vehicle speed increases or the complexity of the road shape being driven increases. Since this corresponds to reducing the number, the same effect as the audio system 100 of the above-described embodiment can be obtained. In this case, the audio control unit 26 corresponds to operation key selection means.
[0050]
【The invention's effect】
As described above, according to the present invention, one or more functions to be executed at that time are selected and selected from among a plurality of functions of the in-vehicle device according to the traveling state of the vehicle. Because the operation keys corresponding to each function are assigned, the minimum necessary functions and frequently used functions are executed by operating the easy-to-operate operation keys in the driving state where detailed operations are difficult. Therefore, the operability of the in-vehicle device can be improved.
[0051]
In addition, when the functions that can be executed according to the running state of the vehicle are reduced, a plurality of operation keys are divided into groups, and the same functions of the operation keys included in each group are made to correspond to each other. Since execution of a desired function can be instructed without performing it, operability can be further improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of an audio system according to an embodiment to which the present invention is applied.
FIG. 2 is a diagram illustrating an example of an operation unit.
FIG. 3 is a diagram illustrating an example of an execution function selection table.
FIG. 4 is a flowchart showing an operation procedure of the audio system when an executable function is selected according to the traveling state of the own vehicle.
FIG. 5 is a diagram illustrating a specific example in which a plurality of operation keys provided in an operation unit are classified into three groups.
FIG. 6 is a diagram illustrating a specific example in which a plurality of operation keys provided in an operation unit are classified into two groups.
FIG. 7 is a diagram showing an overall configuration of a road unit.
FIG. 8 is a diagram showing detailed contents of various tables included in a road unit.
FIG. 9 is a diagram illustrating an example of a node on a curved road.
FIG. 10 is a diagram illustrating a configuration of an audio system having a touch panel.
FIG. 11 is a diagram illustrating an example of a display screen on which mark images corresponding to executable operation keys are displayed.
FIG. 12 is a diagram illustrating a configuration of an audio system including a remote control unit.
[Explanation of symbols]
2 Vehicle position detector
8 Navigation control unit
12 Display device
14 Touch panel
20 Navigation device
22 cassette tape deck
24 Operation unit
26 Audio controller
30 Speaker
100 audio system

Claims (9)

Traveling state determining means for determining the traveling state of the own vehicle;
Have a plurality of operation keys for performing an instruction to execute a plurality of functions in-vehicle device has an operation means for the arrangement of the plurality of operation keys is fixed in advance,
An execution function selection means for selecting one or a plurality of functions to be executed at that time from among a plurality of functions of the in-vehicle device according to the traveling state of the host vehicle determined by the traveling state determination means; ,
Operation key assigning means for associating one or more functions selected by the execution function selecting means with one or more of the operation keys included in the operation means;
Function execution means for executing a function corresponding to the operated operation key when any of the operation keys included in the operation means is operated;
A remote control unit comprising at least a part of a plurality of operation keys included in the operation means;
The function execution means is fixedly assigned to the operated operation key regardless of the determination result by the running state determination means when the operation key included in the remote control unit is operated. An operation instruction method for an in-vehicle device characterized by executing a function . In claim 1,
The traveling state determined by the traveling state determining means is the traveling speed of the own vehicle, and the execution function selecting means reduces the number of functions to be executed as the traveling speed of the own vehicle increases. An in-vehicle device operation instruction method. In claim 1,
The travel state determined by the travel state determination means is the complexity of the road shape on which the vehicle travels, and the execution function selection means becomes an execution target as the road shape on which the vehicle travels becomes complex. An in-vehicle device operation instruction system characterized by reducing the number of functions. In any one of Claims 1-3,
The operation key assigning means collects the operation keys arranged close to each other, performs a plurality of groups, and associates the operation keys belonging to the same group with the same function to be executed. Operation instruction system for in-vehicle devices. In any one of Claims 1-4,
The operation means indicates a display device that displays the operation keys corresponding to the function selected by the execution function selection means, and a part of a display screen corresponding to the operation keys displayed on the display device. And a touch panel that detects the indicated position when
The function executing means determines an indicated operation key based on a detection result by the touch panel and executes a function corresponding to the operation key. Traveling state determining means for determining the traveling state of the own vehicle;
Have a plurality of operation keys for performing an instruction to execute a plurality of functions in-vehicle device has an operation means for the arrangement of the plurality of operation keys is fixed in advance,
Operation key selection means for selectively setting the operation key for which the execution instruction is valid and the operation key for which the execution instruction is invalid, according to the traveling state of the host vehicle determined by the traveling state determination means;
Function execution means for executing a function corresponding to the operation key when the operation key for which the execution instruction is valid is operated;
A remote control unit comprising at least a part of a plurality of operation keys included in the operation means;
The function execution means is fixedly assigned to the operated operation key regardless of the determination result by the running state determination means when the operation key included in the remote control unit is operated . An operation instruction method for an in-vehicle device characterized by executing a function . In claim 6,
The number of the traveling state is determined by the traveling state determining means is a traveling speed of the vehicle, the operation key selection means, in accordance with the traveling speed of the vehicle becomes faster, the execution instruction invalid before Symbol operation keys An operation instruction method for a vehicle-mounted device, characterized by increasing In claim 6,
The travel state determined by the travel state determination means is the complexity of the road shape on which the host vehicle travels. An operation instruction method for a vehicle-mounted device, wherein the number of invalid operation keys is increased. In any one of Claims 6-8,
The operation means indicates a display device that displays the operation keys for which the operation instruction selected by the operation key selection means is valid, and a part of a display screen corresponding to the operation keys displayed on the display device. And a touch panel that detects the indicated position when indicated,
The function executing means determines an indicated operation key based on a detection result by the touch panel and executes a function corresponding to the operation key.

Images