JP2024018904A - Vehicle state guidance apparatus and vehicle state guidance program - Google Patents

Abstract

To provide a vehicle state guidance apparatus and a vehicle state guidance program that can give a highly entertaining voice guidance.SOLUTION: A vehicle state guidance apparatus includes: a connection unit which can connect to a vehicle network mounted on a vehicle; a vehicle state detection unit which detects a vehicle state of the vehicle over the vehicle network; a voice data storage unit which stores voice data regarding a voice guidance associated with the vehicle state; and a voice data output unit which outputs the voice data associated with the vehicle state detected by the vehicle state detection unit. A plurality of electronic control units is connected to the vehicle network. Network communication data output from each of the electronic control units is communicated on the vehicle network. The vehicle state detection unit detects the vehicle state of the vehicle directly from the network communication data.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle condition guidance device and a vehicle condition guidance program for providing audio guidance on various conditions of a vehicle.

BACKGROUND ART Conventionally, information obtained through CAN (Controller Area Network) communication or the like has been displayed on the meter of an automobile to present various information to passengers (driver and fellow passengers). For example, various information obtained through CAN communication, such as whether a door is ajar, remaining fuel level, radiator water temperature, vehicle running speed, engine rotation speed, etc., can be displayed on the instrument panel to present it to the passenger. There is.

Furthermore, a system has been proposed that provides various types of information such as those described above to the driver of a vehicle by voice. For example, the system includes an audio output means that can output multiple types of voices with different voice qualities, an attribute acquisition means that acquires the attributes of the driver of the vehicle, and the attributes of the driver and the type of information to be provided. and provision method determining means for determining the voice quality to be used when providing information based on the information provided. In this system, the audio output means outputs information using audio having the voice quality determined by the provision method determining means.

Japanese Patent Application Publication No. 2010-128099 Japanese Patent Application Publication No. 2014-34374

According to the above system, the information is provided by a voice whose voice quality corresponds to the attributes of the vehicle driver and the type of information to be provided to the driver (for example, whether the information is highly urgent or not). be done. The voice output means in the above system has a function of outputting synthesized voice of a predetermined voice quality. However, even if the synthesized voice output from the voice output means has a voice quality that corresponds to the type of information, etc., it is a mechanical voice that does not make the listener, such as a driver, feel any emotion.

On the other hand, there are many requests for entertainment in voice guidance while driving a vehicle. By adding entertainment to the voice guidance, driving can be enjoyed safely. However, the synthesized speech output from the speech output means in the above system is a mechanical sound that does not make the listener feel emotion, and therefore has a problem of lacking entertainment value.

The above-mentioned Patent Document 2 discloses a radar detector that controls audio output directed to a driver of a vehicle. The radar detector has an OBD function. The OBD function in Patent Document 2 is a function that acquires vehicle information via an OBD port provided on the vehicle side based on the OBD2 standard, which is a vehicle inspection standard (Paragraph 0057 of Patent Document 2), and the vehicle information is Audio is output based on. The radar detector is connected to a vehicle network such as a CAN (Controller Area Network) via an ODB port (OBD connector). Each electronic control unit (ECU) that controls the various systems that make up the vehicle is connected to the vehicle network, and network communication data output from each ECU is communicated via the vehicle network. , each ECU controls each system based on the network communication data. The radar detector described in Patent Document 2 can acquire vehicle information through the OBD port (OBD connector), but this vehicle information is information that the radar detector requires according to its function. This is data transmitted from each ECU based on a request signal transmitted from a radar detector to each ECU according to the OBD2 standard. Therefore, the data has a different data structure from the network communication data output from each ECU that communicates over the vehicle network. In other words, the vehicle information that can be acquired by the radar detector described in Patent Document 2 is only a part of the information included in the network communication data that communicates the vehicle network, so the vehicle information that can be acquired by the radar detector described in Patent Document 2 is only a part of the information included in the network communication data that communicates the vehicle network. There is a problem that the types of products are limited.

In view of the above-mentioned problems, an object of the present invention is to provide a vehicle condition guidance device and a vehicle condition guidance program that enable highly entertaining voice guidance.

In order to solve the above-mentioned problems, the present invention includes: a connection section mounted on a vehicle that can be connected to a vehicle network; a vehicle state detection section that detects the vehicle state of the vehicle via the vehicle network; an audio data storage section that stores audio data related to audio guidance associated with a state; and an audio data output section that outputs the audio data associated with the vehicle state detected by the vehicle state detection section; A plurality of electronic control units are connected to the vehicle network, and network communication data output from each of the plurality of electronic control units is communicated, and the vehicle state detection section directly detects the network communication data from the network communication data. A vehicle condition guidance device is provided, which detects the vehicle condition of the vehicle.

The present invention provides a vehicle state detection function that detects the vehicle state of the vehicle via a vehicle network installed in the vehicle, and audio data related to voice guidance associated with the vehicle state detected by the vehicle state detection function. A vehicle status guidance program for causing a computer to realize an audio data output function of outputting an audio data, wherein a plurality of electronic control units are connected to the vehicle network, and an audio data output function of outputting an audio data from each of the plurality of electronic control units is connected to the vehicle network. The vehicle state guidance program is characterized in that network communication data is communicated, and the vehicle state detection function is a function of directly detecting the vehicle state of the vehicle from the network communication data.

According to the present invention, it is possible to provide a vehicle condition guidance device and a vehicle condition guidance program that enable highly entertaining audio guidance.

FIG. 1 is a functional block diagram of a system using a vehicle condition guidance device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a schematic configuration of a vehicle condition guidance device according to an embodiment of the present invention. FIG. 3 shows one aspect of the audio data table stored in the audio data storage unit in an embodiment of the present invention. FIG. 4 shows another aspect of the audio data table stored in the audio data storage unit in one embodiment of the present invention. FIG. 5 is a conceptual diagram showing an example of the data structure of network communication data in an embodiment of the present invention. FIG. 6 is a drawing showing an example of network communication data communicated to the vehicle network 2 in an embodiment of the present invention.

Aspect 1 of the present invention includes a connection unit installed in a vehicle and connectable to a vehicle network, a vehicle state detection unit that detects the vehicle state of the vehicle via the vehicle network, and a vehicle state detection unit that is connected to the vehicle state. The vehicle network includes: an audio data storage unit that stores audio data related to audio guidance; and an audio data output unit that outputs the audio data associated with the vehicle state detected by the vehicle state detection unit; A plurality of electronic control units are connected, and network communication data output from each of the plurality of electronic control units is communicated, and the vehicle state detection section detects the vehicle state of the vehicle directly from the network communication data. This is a vehicle condition guidance device characterized by detecting.

In the vehicle condition guidance device according to aspect 2 of the present invention, in the above aspect 1, the network communication data has a data frame including an identification field and a data field, and the identification field includes a plurality of electronic control units. Each identification data is stored, the data field stores a plurality of data including vehicle state data regarding the vehicle state of the vehicle, and the vehicle state detection unit is configured to detect the identification data stored in the identification field. Based on the above, the vehicle condition data is extracted from among the plurality of data included in the data field, and the vehicle condition of the vehicle is detected from the extracted vehicle condition data.

In the vehicle condition guidance device according to aspect 3 of the present invention, in the aspect 2, the vehicle condition detection section detects the vehicle condition data based on a correlation table between the identification data and the allocation of the vehicle condition data in the data field. It is characterized by extracting.

A vehicle state guidance device according to an aspect 4 of the present invention, in any one of the above aspects 1 to 3, includes a communication data storage unit that temporarily stores the network communication data in the order in which the network communication data is communicated through the vehicle network; a data set storage unit that stores at least one basic communication data set consisting of network communication data; and a data comparison unit that compares the network communication data stored in the communication data storage unit in communication order with the basic communication data set. The audio data storage unit stores special audio data corresponding to a case where the network communication data stored in the communication data storage unit and the basic communication data set do not match, and the audio data storage unit stores special audio data corresponding to a case where the network communication data stored in the communication data storage unit and the basic communication data set do not match, and Accordingly, when it is determined that the network communication data stored in the communication data storage unit and the basic communication data set do not match, the audio data output unit outputs the special audio data. do.

In the vehicle condition guidance device according to aspect 5 of the present invention, in any one of aspects 1 to 4 above, the voice data storage section is a character's speech to which a desired attribute is set, and the voice data storage unit corresponds to the vehicle condition. It is characterized in that the audio data containing the lines to be recorded is stored.

In the vehicle condition guidance device according to aspect 6 of the present invention, in any one of aspects 1 to 4 above, the voice data storage section contains lines of each of a plurality of types of characters having different attributes, and the voice data storage section corresponds to the vehicle condition. The vehicle state guidance device further includes a character selection section that stores a plurality of the audio data including lines that are recorded, and the vehicle state guidance device further includes a character selection section that selects one character from the plurality of types of characters, and the audio data output section The audio data corresponding to the one character selected by the controller is output.

In the vehicle state guidance device according to aspect 7 of the present invention, in any one of the above aspects 1 to 6, the voice data storage section includes a plurality of types of vehicle conditions associated with at least one of the plurality of types of vehicle conditions. The vehicle state guidance device further includes an audio data selection unit that stores audio data related to audio guidance, and selects one audio data from a plurality of types of audio data associated with the vehicle status, and the audio data output unit , the audio data selected by the audio data selection section is output.

In the vehicle condition guidance device according to aspect 8 of the present invention, in any one of aspects 1 to 7 above, the voice data storage section stores voice data related to the voice guidance associated with one type of the vehicle condition, and two types of voice data related to the voice guidance associated with the vehicle condition. It is characterized by storing audio data related to the audio guidance associated with the above combinations of vehicle states.

A vehicle condition guide device according to a ninth aspect of the present invention is a vehicle condition guide device according to any one of the first to eighth aspects, in which the vehicle condition includes a speed of the vehicle, a remaining amount of fuel in the vehicle, a driving time of the vehicle, an engine of the vehicle. , stopping the engine of the vehicle, wearing a seatbelt of the vehicle, a door ajar state of the vehicle, operating a handbrake of the vehicle, and turning on a light of the vehicle. .

A vehicle state guidance device according to an aspect 10 of the present invention is provided in any one of the above aspects 1 to 9, including a vehicle state storage section that stores the vehicle state detected by the vehicle state detection section, and a vehicle state storage section that stores the vehicle state detected by the vehicle state detection section. The audio data output section further includes a priority order adding section that adds a priority order to the stored vehicle state, and the audio data output section assigns a priority order to the vehicle state based on the priority order of the vehicle state stored in the vehicle state storage section. The present invention is characterized in that the audio data associated with the vehicle state having a high ranking is output.

In the vehicle condition guidance device according to an eleventh aspect of the present invention, in any one of the above aspects 1 to 10, the voice data storage section stores the voice data recorded by a voice of a person desired by a passenger of the vehicle. It is characterized by

A vehicle state guidance program according to aspect 12 of the present invention includes a vehicle state detection function that detects the vehicle state of the vehicle via a vehicle network installed in the vehicle, and the vehicle state detected by the vehicle state detection function. A vehicle state guidance program for causing a computer to realize an audio data output function of outputting audio data related to audio guidance associated with a vehicle network, wherein a plurality of electronic control units are connected to the vehicle network, and a plurality of electronic control units are connected to the vehicle network. network communication data output from each of the electronic control units is communicated, and the vehicle state detection function is a function of directly detecting the vehicle state of the vehicle from the network communication data. This is a vehicle status guidance program.

An embodiment of the present invention will be described.
The vehicle state guidance device 1 according to the present embodiment includes a connection section 11 that can be connected to a vehicle network 2 mounted on a vehicle, a vehicle state detection section 12 that detects the vehicle state of the vehicle via the vehicle network 2, A storage unit 13 that stores audio data related to audio guidance associated with the vehicle status, an audio data output unit 14 that outputs audio data associated with the vehicle status detected by the vehicle status detection unit 12, and a control unit 15. , and a power switch.

The vehicle network 2 installed in the vehicle may be one that is widely used as an in-vehicle LAN, and may include CAN (Controller Area Network), LIN (Local Interconnect Network), Flex Ray, CAN FD (CAN), etc. Flexible Data rate) etc. may be used. The vehicle network 2 includes various electronic control units such as a vehicle speed ECU 31, an engine ECU 32, a fuel ECU 33, a body ECU 34, a brake ECU 35, a lighting ECU 36, a gear ECU (not shown), an external ECU (not shown), and an air conditioner ECU (not shown). 3 (Electronic Control Unit, ECU) is connected. Sensor devices 4 such as a vehicle speed sensor and a fuel sensor are connected to the various electronic control units 3, and a plurality of sensor devices 4 may be connected to one ECU. Note that the plurality of ECUs connected to the vehicle network 2 may each be physically one device (semiconductor chip mounted on one printed circuit board), or all ECUs may be physically one device (semiconductor chip mounted on one printed circuit board). It may be one device (multiple semiconductor chips mounted on one printed circuit board), or two or more ECUs that are part of multiple ECUs may be physically one device (multiple semiconductor chips mounted on one printed circuit board). (two or more semiconductor chips).

Various electronic control units 3 connected to the vehicle network 2 output network communication data, and the network communication data is communicated to the vehicle network 2. The network communication data output from the various electronic control units 3 and communicated to the vehicle network 2 includes at least an identification field (ID Field, ID) and a data field (Data Field, DF), as shown in FIG. 5, for example. Any data structure may be used as long as it has a data structure consisting of a data frame, and the data frame represents the SOF (Start Of Frame) that represents the start of the data frame, and the number of bytes of data included in the data field (usually 0 to 8 bytes). It may include various fields such as a control field (CF) and an EOF (End Of Frame) indicating the end of a data frame. The identification field is a field that stores identification information of the electronic control unit 3 that outputs the network communication data, and the data field is a field that stores transmission data that is output and transmitted from the electronic control unit 3. The transmission data may be displayed as a hexadecimal character string, for example. The transmission data stored in the data field includes vehicle information required in this embodiment and information other than the vehicle information. For example, as shown in Figure 6, when the driver's side door (right front door) is opened from a state where all the doors of the vehicle are closed, the third byte D2 of the transmission data stored in the data field is Network communication data of "01" is output from the body ECU 34 (ID: 000001). In addition, when the door on the passenger seat side (left front door) is opened from a state where all the doors of the vehicle are closed, network communication data with the third byte D2 of the transmitted data stored in the data field is "03". is output from the body ECU 34 (ID:000001). That is, vehicle information regarding the opening and closing of the vehicle door is included in the third byte D2 of the transmission data stored in the data field, but other data may include other vehicle information (for example, information regarding the seat belt wearing state). etc.) or data unrelated to the vehicle information required in this embodiment. In this embodiment, the vehicle state detection unit 12 detects the vehicle state of the vehicle based on the transmitted data related to this vehicle information. That is, the vehicle state detection unit 12 directly detects the vehicle state of the vehicle from network communication data output from various electronic control units 3 and communicated to the vehicle network 2.

The vehicle state guidance device 1 according to the present embodiment is connected to the vehicle network 2 via the connection unit 11, and the vehicle state detection unit 12 directly detects the vehicle state of the vehicle from network communication data communicated through the vehicle network 2. To detect. The vehicle state detected by the vehicle state detection unit 12 includes, for example, the speed of the vehicle, the remaining amount of fuel in the vehicle, the driving time of the vehicle, starting the engine of the vehicle, stopping the engine of the vehicle, and the wearing state of the seat belt of the vehicle. (seat belts not fastened), vehicle door ajar status, vehicle handbrake operating status (handbrake applied or not), vehicle lighting status (whether the lights are on or not, whether the lights are on or not) If the lights are on, whether the high beam is on, whether the headlights are on, whether the small lights are on or not), the vehicle's gear input status (which gear is being input), the vehicle's Any information that can be obtained by various electronic control units 3 may be used, such as the outside temperature and the operating state of the vehicle's air conditioner (air conditioner ON/OFF). These vehicle states are detected by the vehicle state detection section 12 directly from network communication data output from various electronic control units 3 connected to the vehicle network 2.

For example, the speed of the vehicle can be determined by directly acquiring network communication data output from the vehicle speed ECU 31 connected to the vehicle network 2 via the vehicle network 2, and directly detecting the vehicle state from the network communication data. Detected by the unit 12. To start and stop the vehicle engine, network communication data output from the engine ECU 32 connected to the vehicle network 2 is directly acquired via the vehicle network 2, and the vehicle engine is started and stopped directly from the network communication data. It is detected by the state detection section 12. The remaining amount of fuel in the vehicle is determined by directly acquiring network communication data output from the fuel ECU 33 connected to the vehicle network 2 via the vehicle network 2, and directly detecting the vehicle state from the network communication data. Detected by the unit 12. The wearing state of the seat belt of the vehicle, the opening/closing state of the vehicle doors and door locks, and the sitting state of the seat are determined by transmitting network communication data output from the body ECU 34 connected to the vehicle network 2 via the vehicle network 2. It is directly acquired and detected by the vehicle state detection unit 12 directly from the network communication data. The operating state of the vehicle's handbrake and brake pedal is determined by directly acquiring network communication data output from the brake ECU 35 connected to the vehicle network 2 via the vehicle network 2, and directly from the network communication data. is detected by the vehicle state detection section 12. The lighting state of the vehicle lighting is determined by directly acquiring network communication data output from the lighting ECU 36 connected to the vehicle network 2 via the vehicle network 2, and determining the vehicle state directly from the network communication data. It is detected by the detection unit 12. The input state of the gear of the vehicle is determined by directly acquiring network communication data output from a gear ECU (not shown) connected to the vehicle network 2 via the vehicle network 2, and directly from the network communication data. is detected by the vehicle state detection section 12. The outside temperature of the vehicle is determined by directly acquiring network communication data output from an external ECU (not shown) connected to the vehicle network 2 via the vehicle network 2, and directly from the network communication data. It is detected by the vehicle state detection section 12. The operating state of the vehicle's air conditioner is determined by directly acquiring network communication data output from an air conditioner ECU (not shown) connected to the vehicle network 2 via the vehicle network 2, and directly from the network communication data. is detected by the vehicle state detection section 12. Note that the various vehicle states detected by the vehicle state detection section 12 may be obtained by directly acquiring output signals from the sensor device 4 connected to the various electronic control units 3.

The storage unit 13 includes an audio data storage unit 131 that stores audio data related to audio guidance corresponding to various vehicle states in association with the vehicle states. For example, as shown in FIGS. 3 and 4, the audio data storage unit 131 stores audio data related to at least one audio guidance associated with various vehicle states as an audio data table. The audio data stored in the audio data storage unit 131 may be associated with one type of vehicle state, or may be associated with a combination of two or more types of vehicle states. The audio data storage unit 131 may assign and store flag information to audio data. The flag information is information indicating audio data that is output in response to the vehicle state detected by the vehicle state detection unit 12, and audio data to which "1" is assigned as the flag information is output in response to the vehicle state. This means that audio data to which “0” is assigned as flag information is audio data that is not output.

The audio data storage unit 131 stores audio data that includes dialogues of characters set with desired attributes. For example, the voice data table shown in FIG. 3 contains the lines of a character set with the attribute of a girl with a friendly personality and a constant smile, like a "younger sister," and a character desired by the passenger (e.g., a voice actor). , actors, video posters such as YouTubers and VTubers, Instagrammers, influencers such as TikTokers, etc.) are associated with various vehicle states. In addition, the voice data table shown in Figure 4 contains the lines of a character whose attributes are set as a boy who has a cool personality but is not bad with people, is kind to close friends, and is like a dependable "older brother." , is a table in which voice data recorded by a person desired by a passenger is associated with various vehicle states. Since the lines of the character for which the desired attributes of the audio data are set are audio data recorded by a person desired by the passenger, it is possible to provide audio guidance that matches the preferences of the driver, etc. It is possible to add entertainment to vehicle driving. In addition, since lines that make you feel the emotion of a character with a desired attribute according to various vehicle conditions are output as audio data, it is possible to give the driver a feeling that the vehicle is anthropomorphized, and improve the feeling of driving the vehicle. Entertainment can be enhanced. Note that the above attributes in this embodiment are examples, and the present invention is not limited to these.

The storage unit 13 includes a communication data storage unit 133 that temporarily stores network communication data communicating through the vehicle network 2 in communication order (output order from various electronic control units 3), and a data set that stores basic communication data sets. It may include a storage section 134 and a special audio data storage section 135 that stores special audio data.

The basic communication data set is a set of data sets including a plurality of network communication data, and is output from various electronic control units 3 in accordance with the basic operation flow of the vehicle, and is a network that communicates with the vehicle network 2. It is a combination of communication data. For example, when starting to drive a vehicle, the general sequence of steps is to unlock the door, open the driver's side door, get into the driver's seat, press the brake pedal, and start the engine. Basic operations are performed. Following this series of basic operations, (1) network communication data indicating that the door lock has been unlocked, (2) network communication indicating that the driver's side door (right front door) has been opened. (3) network communication data indicating that the driver got into the driver's seat, (4) network communication data indicating that the brake pedal was pressed, and (5) network communication data indicating that the engine was started. Communication is performed through the vehicle network 2 in this order. At least one set of basic communication data sets including such network communication data (1) to (5) is stored in the data set storage unit 134.

The special audio data stored in the special audio data storage unit 135 is a basic communication data set in which a plurality of network communication data temporarily stored in the communication data storage unit 133 in communication order is stored in the data set storage unit 134. This data is related to the audio that is output from the audio data output unit 14 when the audio data output unit 14 does not match the audio data output unit 14 and meets a specific condition (special audio data output condition). For example, network communication data communicating through the vehicle network 2 may include (1) network communication data indicating that the door lock has been unlocked, and (2') network communication data indicating that the passenger seat side door (left front door) has been opened. When communication data and (3') network communication data indicating that a person has entered the passenger seat are temporarily stored in the communication data storage unit 133 in this order, the basic communication data set ((1) door lock is (2) network communication data indicating that the door on the driver's side (right front door) is open; (3) network communication data indicating that the driver has entered the driver's seat; (4) Network communication data indicating that the brake pedal has been depressed and (5) Network communication data indicating that the engine has been started) do not match the network communication data in (2) and (3). In this case, the control unit 15 uses the network communication data (1) indicating that the door lock is unlocked as a trigger, and uses the plurality of network communication data and basic communication data temporarily stored in the communication data storage unit 133. Contrast with the set. In the above case, the network communication data (1), (2'), (3') temporarily stored in the communication data storage unit 133 will be compared with the basic communication data set. As a result, the control unit (data comparing unit) 15 determines that the two do not match, and when the specific conditions are met, the special audio data stored in the special audio data storage unit 135 is transferred to the audio data output unit. It is output from 14.

A specific condition for outputting special audio data (special audio data output condition) is when predetermined network communication data among the second and subsequent network communication data included in the basic communication data set do not match; The condition is that the network communication data that does not match (the network communication data temporarily stored in the communication data storage section 133) indicates a predetermined vehicle state. For example, in the above example, a plurality of pieces of network communication data temporarily stored in the communication data storage unit 133 are included in (2) driver's side door (right front (3) The network communication data indicating that the door has been opened and the network communication data indicating that the driver has entered the driver's seat (3) do not match, but the special audio data is not output just because of the mismatch. After the communication data storage unit 133 stores (1) network communication data indicating that the door lock is unlocked, (2') network communication data indicating that the passenger seat side door (left front door) is opened. is stored, (3') network communication data indicating that the passenger got into the passenger seat is stored, and (1) network communication data indicating that the door lock is unlocked is stored, and (2) the driver's seat side is stored. A specific condition for outputting special audio data is that a predetermined period of time has elapsed without storing network communication data indicating that the door (right front door) has been opened. Therefore, after (1) network communication data indicating that the door lock is unlocked is stored in the communication data storage unit 133, (2'') network communication data indicating that the rear seat door (rear door) is opened. is stored, and (3'') network communication data indicating that the passenger entered the rear seat is stored.If (2) of the network communication data included in the basic communication data set is (3) The network communication data indicating that the door has been opened and the network communication data indicating that the driver has entered the driver's seat (3) do not match the above specific conditions. In this case, no special audio data is output.

Note that the plurality of network communication data temporarily stored in the communication data storage unit 133 in the communication order and the basic communication data set do not match, which means that the first network communication data in the communication order of the plurality of network communication data and the basic This means that the first (first) network communication data of the communication data set matches, but at least a part of the second and subsequent network communication data of both do not match.

The special audio data stored in the special audio data storage unit 135 includes, for example, the driver of the vehicle playing the role of "boke" in a manzai or the like, and the vehicle status guidance device 1 playing the role of "tsukkomi" in the performance of a manzai or the like. It may also be data of audio content that reminds people of things. In the above example, if the plurality of network communication data communicating through the vehicle network 2 at the start of vehicle operation match the above basic communication data set (1) but do not match (2) and (3), special The audio content of the audio data is, in response to the driver trying to get into the vehicle from the passenger seat, "Are you going to get in that way?", "Can you open that way!", "Is someone going to get in...?"・?'' or ``Huh? Can you open the passenger seat?''. In this way, special voice data is output from the voice data output unit 14 when specific conditions are met, and furthermore, since the voice is the voice of a character with a desired attribute, the driver of the vehicle is informed of the character. It can give the feeling of a conversation with someone, and it can make the user feel more entertained.

The storage unit 13 may include a vehicle state storage unit 132 that stores the vehicle state detected by the vehicle state detection unit 12 based on network communication data temporarily stored in the communication data storage unit 133. The vehicle condition storage section 132 may store the information regarding the vehicle conditions detected by the vehicle condition detection section 12 in the order in which they were detected by the vehicle condition detection section 12, or may store the information regarding the vehicle conditions in the order of urgency. It may also be stored separately into a group of vehicle states that have a non-emergency condition and a group of vehicle states that do not have an emergency. When the vehicle states are divided into groups in this way, the priority order adding section 17 described later can add priorities to the vehicle states based on the presence or absence of urgency. Information regarding the vehicle state detected by the vehicle state detection section 12 is temporarily stored in the vehicle state storage section 132, and based on the vehicle state stored in the vehicle state storage section 132 according to instructions from the control section 15, audio data is stored. is selected. Note that the vehicle state temporarily stored in the vehicle state storage section 132 is deleted from the vehicle state storage section 132 according to an instruction from the control section 15 at the same time as audio data is selected by the audio data selection section 16 described later.

Also, among the plurality of network communication data temporarily stored in the communication data storage unit 133, if the network communication data is the target of comparison with the basic communication data set and special audio data is output, , the network communication data that was the subject of the comparison is deleted from the communication data storage unit 133. Therefore, the vehicle state detection unit 12 does not detect the vehicle state based on the network communication data that is the target of the comparison.

The storage unit 13 stores identification information (ID) stored in the identification field of network communication data communicated to the vehicle network 2, and position information (D0 in FIG. 6) of the vehicle information included in the transmission data stored in the data field. -D7) is stored. The vehicle state detection unit 12 refers to the correlation field and detects vehicle information as a vehicle state from position information (D0 to D7 in FIG. 6) based on identification information (ID) included in the network communication data.

The identification information (ID) included in the network communication data, the content of the transmitted data (for example, the location information of the vehicle information included in the transmitted data, etc.) differ depending on the vehicle model and model year, etc. It also varies depending on the vehicle, whether or not it has optional equipment. Therefore, in the vehicle state guidance device 1 according to the present embodiment, a correlation field corresponding to a unique vehicle is stored in the storage unit 13, and by referring to the correlation field, the vehicle state detection unit 12 detects the vehicle information. It can be detected as a condition.

The vehicle condition guidance device 1 according to this embodiment includes an audio data selection unit 16 that selects audio data associated with a vehicle condition. When a plurality of types of audio data associated with one vehicle state are stored in the audio data storage unit 131, the audio data selection unit 16 selects one audio data based on flag information assigned to the audio data. Data may be selected (see FIGS. 3 and 4). For example, "1" and "0" are assigned as flag information to each audio data, and the audio data to which flag information "1" is assigned is selected by the audio data selection unit 16. After audio data to which flag information has been assigned is selected, the assignment of flag information may be changed. As a result, even if the vehicle is in the same state, a different voice guidance is provided to the driver each time, thereby increasing the entertainment value. The assignment of flag information may be changed, for example, by assigning flag information in the order in which they are stored in the audio data table, or by assigning flag information to one piece of audio data selected by a random number. good. Specifically, when the vehicle engine is started, among the voice data associated with the vehicle state of engine start, the voice data "Let's go!" to which flag information "1" is assigned is voice data. It is selected by the selection unit 16 (see FIG. 3). After the audio data selection unit 16 selects one audio data, flag information "1" is assigned to the audio data "Where are we going today?", and flag information "0" is assigned to the audio data "Let's get going!" is assigned. As a result, the next time the vehicle engine is started, the driver will be provided with voice guidance asking, "Where are you going today?" By changing the assignment of this flag information using random numbers, it is possible to make it difficult for the driver to predict the vehicle guidance according to the vehicle state, thereby further enhancing the entertainment value.

Furthermore, the flag information may not be assigned to the audio data stored in the audio data storage section 131. In this case, when multiple types of audio data associated with one vehicle state are stored in the audio data storage unit 131, the audio data selection unit 16 may select one type of audio data using random numbers. good.

Further, the vehicle state guide device 1 according to the present embodiment may include a priority order adding unit 17 that adds a priority order to the vehicle states stored in the vehicle state storage unit 132. A plurality of vehicle states may be detected almost simultaneously by the vehicle state detection unit 12 via the vehicle network 2. In this case, if the audio data associated with the vehicle states are output in the order in which they are detected by the vehicle state detection unit 12 among the plurality of vehicle states, the emergency vehicle state among the plurality of vehicle states will be output. There is a risk that the voice guidance will be postponed. For example, when a plurality of vehicle states including a door ajar state of the vehicle are detected by the vehicle state detection unit 12 at almost the same time, if the voice guidance associated with the door ajar state is delayed, the vehicle remains in the ajar state. There is a risk that the door may open while the vehicle is running. It is necessary to guide the driver in such a vehicle state preferentially compared to other vehicle states. The priority adding unit 17 adds a priority to the vehicle state detected by the vehicle state detecting unit 12, and the vehicle state to which the priority is added is stored in the vehicle state storage unit 132. Then, the audio data selection unit 16 selects the audio data associated with the vehicle state having the highest priority. As a result, voice guidance corresponding to the urgent state of the vehicle is preferentially provided to the driver, and while providing entertainment, it is also possible to assist in safe driving of the vehicle.

The priority adding unit 17 determines whether the vehicle state detected by the vehicle state detecting unit 12 is urgent, and if the vehicle state is urgent, the priority adding unit 17 determines whether the vehicle state detected by the vehicle state detecting unit 12 is urgent. 132, it is determined whether a vehicle state having an emergency condition is stored. When a vehicle state having an emergency condition is stored in the vehicle state storage unit 132, a priority order next to the priority given to the vehicle state is added and stored in the vehicle state storage unit 132. If the vehicle state with urgency is not stored in the vehicle state storage unit 132, the highest priority is added to the vehicle state and stored in the vehicle state storage unit 132. When determining that the vehicle condition detected by the vehicle condition detecting section 12 is non-urgent, the priority adding section 17 assigns priority added to the vehicle condition stored in the vehicle condition storage section 132. Among the ranks, the rank next to the lowest rank is added and stored in the vehicle state storage unit 132. Note that the priority adding unit 17 may update the priority ranking of the vehicle state stored in the vehicle state storage unit 132 after the audio data is selected by the audio data selection unit 16.

The audio data output unit 14 outputs a signal related to audio data associated with the vehicle state detected by the vehicle state detection unit 12 via the connection unit 11. Based on the signal related to the audio data output from the audio data output unit 14, audio guidance is output from the vehicle's on-board speaker or the like. The audio data output unit 14 also sends a signal regarding special audio data to the connection unit 11 when the plurality of network communication data temporarily stored in the communication data storage unit 133 in communication order and the basic communication data set do not match. Output via

The connection unit 11 connects the vehicle status guidance device 1 to the vehicle network 2 , inputs network communication data outputted from various electronic control units 3 via the vehicle network 2 to the control unit 15 , and also inputs network communication data outputted from various electronic control units 3 via the vehicle network 2 to the control unit 15 . and outputs a signal related to audio data or special audio data to an on-vehicle speaker or the like of the vehicle. Based on the signal related to the audio data or special audio data output via the connection unit 11, audio guidance is output from the vehicle's on-board speaker or the like.

The control unit 15 uses network communication data output from various electronic control units 3 and communicated via the vehicle network 2, audio data stored in the audio data storage unit 131, etc., and is stored in the storage unit 13. Performs various arithmetic processing, etc. according to instructions from various programs.

When the vehicle state guidance device 1 according to the present embodiment is connected to the vehicle network 2 via the connection unit 11, various electronic control units 3 (e.g., vehicle speed ECU 31, engine ECU 32, fuel ECU 33, body ECU 34, brake ECU 35, lighting Network communication data output from the ECU 36, etc.) is directly input to the control unit 15 via the vehicle network 2, and is temporarily stored in the communication data storage unit 133 in the order of communication in the vehicle network 2. When the communication data storage unit 133 stores trigger network communication data to be compared with the basic communication data set, the control unit (data comparison unit) 15 stores the trigger network communication data and subsequent data. Compare the network communication data stored in sequence with the basic communication data set. As a result of the comparison, if the control unit 15 determines that the data does not match the basic communication data, the special audio data is output by the audio data output unit 14, inputted to the in-vehicle speaker, etc. via the vehicle network 2, and is output from the in-vehicle speaker, etc. will be played. At the same time, the plurality of network communication data that were compared with the basic communication data are deleted from the communication data storage unit 133. As described above, in the present embodiment, when network communication data that does not match the basic communication data set is stored in the communication data storage unit 133, for example, a voice such as "tsukkomi" for "boke" is played. , it is possible to further enhance the entertainment value.

As a result of the above comparison, if the control section 15 determines that the basic communication data matches, the vehicle state detection section 12 detects the vehicle state from the network communication data temporarily stored in the communication data storage section 133. For example, when the doors of the vehicle are unlocked, the vehicle status detection unit 12 detects the vehicle status of "door unlocked". When the engine of the vehicle is started, the vehicle state detection unit 12 detects a vehicle state of "engine started". At this time, if the door of the driver's seat is ajar, the vehicle state of the "door ajar state" is also detected by the vehicle state detection unit 12. The vehicle states detected by the vehicle state detection section 12 are stored in the vehicle state storage section 132 in the order of detection (the order of communication in the vehicle network 2).

Subsequently, the audio data selection unit 16 selects audio data associated with the vehicle state with reference to the flag information. The audio data selected by the audio data selection unit 16 is outputted by the audio data output unit 14, inputted to an in-vehicle speaker or the like via the vehicle network 2, and reproduced from the in-vehicle speaker or the like. In the present embodiment, the audio data stored in the audio data storage unit 131 is recorded by a person desired by the passenger of the vehicle (for example, a person desired by the passenger) to record the lines of a character with a desired attribute. It is possible to add entertainment to driving a vehicle because it is played as a voice with emotion.In addition, lines that make you feel the emotion of a character with a desired attribute according to various vehicle conditions can be used. Since this is output as audio data, it is possible to give the driver and the like the feeling that the vehicle is anthropomorphized, and it is possible to further enhance the entertainment value of driving the vehicle.

According to the vehicle state guidance device 1 according to the present embodiment, the vehicle state detection section 12 can directly detect the vehicle state from the network communication data communicated to the vehicle network 2, so that the various electronic control units 3 Based on the vehicle state detected based on all the information included in the network communication data outputted from the vehicle network 2 and communicated through the vehicle network 2, voice guidance can be provided to the driver of the vehicle.

The embodiments described above are described to facilitate understanding of the present invention, and are not described to limit the present invention. Therefore, each element disclosed in the above embodiments is intended to include all design changes and equivalents that fall within the technical scope of the present invention.

In the embodiment described above, the audio data stored in the audio data storage unit 131 is recorded by a person desired by the passenger, and the dialogue of a character with one of the desired attributes is recorded, but the invention is not limited to this embodiment. It's not something you can do. For example, the audio data stored in the audio data storage unit 131 may include lines of characters with different attributes recorded by a person desired by the passenger. For example, the voice data storage unit 131 may include voice data recorded by a person desired by the passenger, such as lines of a character set with the attribute of a friendly "younger sister"-like girl, and voice data recorded by a person desired by the passenger, and voice data recorded by a character who is a reliable "older brother". The lines of a character set with the attribute of being a boy, such as , may be stored along with voice data recorded by a person desired by the passenger. In this case, the voice guidance may be provided using the voice of a character selected in advance by the driver. Furthermore, the audio data storage unit 131 may store audio data in which dialogues of characters with different attributes are recorded by a person desired by the passenger depending on the type of vehicle state. For example, for vehicle conditions that may pose a danger to vehicle driving, such as ``not wearing a seatbelt'' or ``fuel consumption being less than 1/5'', dialogue from a character with a harsh tone is recorded by a person requested by the passenger. When the vehicle is about to start driving, such as "starting the engine," the voice data is associated with the character's voice that lifts the driver's mood. Recorded audio data may be associated.

In the embodiment described above, a priority order is added to the vehicle state by the priority order adding unit 17, and the audio data associated with the vehicle state is selected by the audio data selection unit 16 based on the priority order. It is not limited. For example, the vehicle condition guidance device 1 does not include the priority adding section 17, and the audio data associated with the vehicle condition is selected in the order in which it is detected by the vehicle condition detection section 12 and stored in the vehicle condition storage section 132. Good too.

In the embodiment described above, the audio data associated with all the vehicle states stored in the vehicle state storage unit 132 are selected by the audio data selection unit 16, but the present invention is not limited to this aspect. For example, if the vehicle state detecting unit 12 detects the vehicle state of "engine starting", immediately after detecting the vehicle state of "engine stopped", and immediately after that, the vehicle state of "engine starting" is detected again, The vehicle state storage unit 132 stores three vehicle states: "engine start," "engine stop," and "engine start." In this case, the audio data associated with the two previously stored vehicle states "engine start" and "engine stop" are not selected, and only the audio data associated with the last stored "engine start" is selected. may be selected. If all the audio data is selected in the order of the three vehicle states above, it may give the driver a mechanized feeling and reduce the entertainment value of driving the vehicle. By selecting only the audio data associated with the stored "engine start" and outputting the audio data, it is possible to give the driver a stronger sense that the vehicle is anthropomorphic, and to improve the driving experience of the vehicle. It is possible to further enhance the entertainment value.

In the vehicle state guidance device 1 according to the present embodiment, the control unit 15 may switch the audio guidance on/off based on network communication data communicated through the vehicle network 2. When a driver rides with a fellow passenger, he or she may wish to turn off the audio guidance in the vehicle status guidance device 1 only while the fellow passenger is in the vehicle. In this case, the driver can turn on/off the audio guidance by operating a specific vehicle without turning off the power switch of the vehicle status guidance device 1. For example, the control unit 15 may turn on/off the voice guidance when network communication data that is extremely unlikely to be communicated during normal vehicle operation is stored in the communication data storage unit 133. Specifically, when the brake pedal is depressed five times while the vehicle speed is 0 km/h (the vehicle is stopped), the control unit 15 controls the communication of network communication data indicating that the vehicle speed is 0 km/h. After being stored in the data storage unit 133, the brake pedal is depressed without the network communication data indicating that the vehicle speed exceeds 0 km/h (that the vehicle is moving) being stored in the communication data storage unit 133. When network communication data indicating 5 consecutive times are stored in the communication data storage section 133, the control section 15 switches the voice guidance on/off.

In the vehicle state guidance device 1 according to the present embodiment, specific audio data may be output from the audio data output unit 14 when the vehicle continues to travel at a substantially constant speed for a predetermined period of time. For example, when the vehicle is traveling on a highway, the speed of the vehicle remains substantially constant, and the steering angle of the steering wheel and the rotational speed of the engine do not change significantly. That is, since there are few changes in the vehicle state, the number of vehicle states detected by the vehicle state detection section 12 is also small, and the frequency at which audio data is output from the audio data output section 14 is also reduced. Similarly, when a vehicle is in a traffic jam, the vehicle continues to travel at a substantially constant low speed (approximately 0 to 20 km/h) for a predetermined period of time. If such expressway driving and traffic congestion continue for a long time, the driver may become tired of driving the vehicle. However, as described above, when the vehicle continues to travel at a substantially constant speed for a predetermined period of time, specific audio data is output from the audio data output unit 14, so that driving the vehicle becomes boring. It is possible to enhance the entertainment value under conditions that are likely to occur, and it is possible to make the driver enjoy driving the vehicle. For example, if the speed of the vehicle is substantially constant and low for a predetermined period of time, the control unit 15 determines that the vehicle is in a traffic jam and asks, ``You're getting sleepy when you're slow...Would you like to take a break?'' It's good to go slowly so we can talk a lot more," and "This is the time to drive safely!" voice data to support vehicle drivers. ?", "Oh, yeah! The other day, I went out with a friend, and did you hear about...?", "The other day, I was invited to a cafe by a friend, and the atmosphere was quite nice. By the way, the voice data output unit 14 may output voice data related to everyday conversations such as "Would you like to go with me next time?" Further, if the speed of the vehicle is substantially constant at a high speed (about 80 km/h) for a predetermined period of time, the control unit 15 determines that the vehicle is traveling on the expressway, and responds with comments such as "It's fun going out!" and "This is how it is!" The audio data output unit 14 may output audio data such as "It's nice to go out." to keep the driver from getting tired of driving.

In the case where the vehicle state guide device 1 according to the present embodiment includes the priority order adding section 17, the vehicle state detected by the vehicle state detecting section 12 is stored in the vehicle state storage section 132, and the priority order adding section 17 as desired. A priority order may be added according to the following. For example, if a vehicle state of "door ajar state" is detected immediately after a vehicle state of "engine start", the priority adding unit 17 adds the first priority to the vehicle state of "door ajar state". , "engine start" may be given the second priority, and the vehicle states to which the respective priorities have been added may be stored in the vehicle state storage unit 132. In this case, the audio data selection unit 16 may select the audio data associated with the vehicle state with the highest priority based on the priority added by the priority adding unit 17 with reference to the flag information. . In the above example, since the highest priority is attached to the vehicle state of "door ajar", the audio data associated with the vehicle state and assigned flag information "1" is "door open". ” should be selected. At the same time, the vehicle state of "door ajar state" stored in the vehicle state storage section 132 is deleted from the vehicle state storage section 132, and the priority added to the vehicle state of "engine start" is updated to first place. It is fine if it is done. After the information related to the vehicle state, the information related to the priority order, etc. stored in the vehicle state storage unit 132 are updated, the audio data selection unit 16 selects the audio data associated with the vehicle state with the highest priority and the flag information. Just browse and select. In this way, the audio data selection section 16 selects audio data based on the information regarding the latest vehicle state stored in the vehicle state storage section 132.

DESCRIPTION OF SYMBOLS 1...Vehicle state guide device 11...Connection part 12...Vehicle state detection part 131...Voice data storage part 132...Vehicle state storage part 14...Voice data output part 2...Vehicle network

Claims (12)

A connection part that can be connected to a vehicle network installed in the vehicle,
a vehicle state detection unit that detects a vehicle state of the vehicle via the vehicle network;
an audio data storage unit that stores audio data related to audio guidance associated with the vehicle state;
an audio data output section that outputs the audio data associated with the vehicle state detected by the vehicle state detection section,
A plurality of electronic control units are connected to the vehicle network, and network communication data output from each of the plurality of electronic control units is communicated,
The vehicle state guidance device is characterized in that the vehicle state detection unit detects the vehicle state of the vehicle directly from the network communication data. The network communication data has a data frame including an identification field and a data field;
The identification field stores identification data of each of the plurality of electronic control units,
The data field stores a plurality of data including vehicle status data regarding the vehicle status of the vehicle,
The vehicle state detection unit extracts the vehicle state data from among the plurality of data included in the data field based on the identification data stored in the identification field, and extracts the vehicle state data from the extracted vehicle state data. The vehicle condition guide device according to claim 1, wherein the vehicle condition guide device detects the vehicle condition of the vehicle. The vehicle state guidance device according to claim 2, wherein the vehicle state detection unit extracts the vehicle state data based on a correlation table between the identification data and the assignment of the vehicle state data in the data field. . a communication data storage unit that temporarily stores the network communication data in the order in which they are communicated through the vehicle network;
a data set storage unit that stores at least one basic communication data set consisting of a plurality of the network communication data;
further comprising a data comparing unit that compares the network communication data stored in the communication data storage unit in communication order and the basic communication data set,
The audio data storage unit stores special audio data corresponding to a case where the network communication data stored in the communication data storage unit and the basic communication data set do not match,
When the data comparison unit determines that the network communication data stored in the communication data storage unit and the basic communication data set do not match, the audio data output unit outputs the special audio data. The vehicle condition guidance device according to any one of claims 1 to 3. 4. The voice data storage unit stores the voice data including lines of a character set with a desired attribute and corresponding to the vehicle state. The vehicle condition guidance device described in . The audio data storage unit stores a plurality of audio data including lines of each of a plurality of types of characters having different attributes and corresponding to the vehicle state,
The vehicle state guidance device further includes a character selection unit that selects one character from the plurality of types of characters,
The vehicle state guidance device according to any one of claims 1 to 3, wherein the audio data output section outputs the audio data corresponding to the one character selected by the character selection section. The audio data storage unit stores audio data regarding a plurality of types of the audio guidance associated with at least one of the plurality of types of the vehicle states,
The vehicle state guidance device further includes an audio data selection unit that selects one audio data from a plurality of types of audio data associated with the vehicle state,
The vehicle condition guidance device according to claim 1, wherein the audio data output section outputs the audio data selected by the audio data selection section. The audio data storage unit stores audio data regarding the audio guidance associated with one type of the vehicle state and audio data regarding the audio guidance associated with a combination of two or more of the vehicle states. The vehicle condition guidance device according to any one of claims 1 to 3. The vehicle status includes the speed of the vehicle, the remaining amount of fuel in the vehicle, the driving time of the vehicle, the start of the engine of the vehicle, the stop of the engine of the vehicle, the wearing state of the seat belt of the vehicle, and the half-way of the vehicle. The vehicle status guidance device according to any one of claims 1 to 3, characterized in that the device includes at least a door status, an operating status of a handbrake of the vehicle, and a lighting status of a light of the vehicle. a vehicle state storage unit that stores the vehicle state detected by the vehicle state detection unit;
further comprising a priority order adding unit that adds a priority order to the vehicle state stored in the vehicle state storage unit,
The audio data output unit is characterized in that it outputs the audio data associated with the vehicle state having a higher priority based on the priority order of the vehicle states stored in the vehicle state storage unit. The vehicle condition guidance device according to any one of claims 1 to 3. 4. The vehicle status guidance device according to claim 1, wherein the voice data storage unit stores the voice data recorded by a voice of a person desired by a passenger of the vehicle. a vehicle state detection function that detects the vehicle state of the vehicle via a vehicle network installed in the vehicle; and a voice that outputs audio data regarding audio guidance associated with the vehicle state detected by the vehicle state detection function. A vehicle condition guidance program for making a computer realize a data output function,
A plurality of electronic control units are connected to the vehicle network, and network communication data output from each of the plurality of electronic control units is communicated,
The vehicle state guidance program is characterized in that the vehicle state detection function is a function of directly detecting the vehicle state of the vehicle from the network communication data.

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