JP2018062278A - Voice guide device, program and, automatic driving vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a voice guide device that controls a speed of a movable body according to regeneration time of a voice content, and to provide a program and an automatic driving vehicle.SOLUTION: A voice guide device 10 is the device moving together with an automatic driving vehicle 1 and includes: a voice output part 13 for outputting voice; voice output control means 116 for regenerating a voice content 122 and causing the voice output part 13 to output voice; and speed control means 115 for generating a speed command signal indicating a speed of the automatic driving vehicle 1 according to regeneration time of the voice content 122.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a voice guidance device, a program, and an autonomous vehicle.

  2. Description of the Related Art In recent years, a car navigation system that provides guidance notification at an optimal timing for a guidance target point has been proposed (see, for example, Patent Document 1).

  The car navigation system described in Patent Literature 1 is attached to an automobile or the like, and includes a position detection unit that detects position information of the vehicle, a display unit that displays a guidance image, and an audio output that outputs guidance audio. When the vehicle passes a predetermined communication start point, vehicle speed information is generated from a plurality of pieces of position information detected by the position detection unit and transmitted to an external information center. The information center adjusts the guidance notification start point according to the vehicle speed information, and transmits the position information and guidance information of the guidance notification start point to the guidance device. Next, the guidance device receives the position information and guidance information of the guidance notification start point, and outputs the guidance information from the display unit and the voice output unit at the timing when the vehicle passes the guidance notification start point.

JP 2011-237175 A

  An object of the present invention is to provide a voice guidance device, a program, and an automatic driving vehicle that control the speed of a moving body in accordance with the playback time of voice content.

[1] A voice guidance device that moves with a moving body,
An audio output unit for outputting audio;
Audio output control means for reproducing audio content and outputting audio from the audio output unit;
Signal generating means for generating a speed command signal indicating the speed of the moving body according to the playback time of the audio content;
Voice guidance device with
[2] The voice guidance device according to [1], wherein the signal generation unit generates the speed command signal based on a playback time, a playback start position, and a playback end position of the audio content.
[3] The signal generating means generates the speed command signal based on a playback time, a playback start position and a playback end position of the audio content, and a speed pattern set in advance for the audio content. The voice guidance device according to [1].
[4] The audio content includes, as accompanying information, a playback time of the audio content, a playback start position and a playback end position, and the speed pattern,
The audio guidance device according to [3], wherein the signal generation unit acquires a reproduction time, a reproduction start position and a reproduction end position, and the speed pattern of the audio content from the accompanying information.
[5] The audio content according to [3] or [4], wherein the audio content includes a plurality of audio data reproduced in time series, and includes a plurality of speed patterns set in time series as the accompanying information. Voice guidance device.
[6] The voice guidance device according to any one of [3] to [5], wherein the speed pattern is selected from a plurality of patterns having different speeds of the moving body at the reproduction end position.
[7] When the acceleration or deceleration at the speed determined according to the playback time of the audio content exceeds a predetermined threshold, the signal generation means determines the audio content according to the playback time of the audio content. Does not output a speed command signal indicating speed,
The voice guidance device according to any one of [1] to [6].
[8] After the reproduction of the audio content is started, the signal generation unit is configured to subtract the stopped time from the reproduction time of the audio content when the moving body stops for a reason other than the speed command signal. Generating the speed command signal according to the reproduction time of
The voice guidance device according to any one of [1] to [6].
[9] A computer that moves together with a moving object,
Audio output control means for reproducing audio content and outputting audio from the audio output unit;
The program for functioning as a signal generation means which produces | generates the speed command signal which shows the speed of the said mobile body according to the reproduction time of the said audio | voice content.
[10] The voice guidance device according to any one of [1] to [8];
Control means for controlling the speed of the moving body based on the speed command signal generated by the signal generating means;
A self-driving car equipped with.

According to the first, ninth, and tenth aspects of the present invention, the speed of the moving body can be controlled according to the playback time of the audio content.
According to the second aspect of the present invention, the speed of the moving body can be synchronized with the start and end of the reproduction time.
According to the invention which concerns on Claim 3, compared with the structure which does not use a speed pattern, speed control of a moving body can be performed easily.
According to the fourth aspect of the present invention, it is possible to easily acquire the playback time, playback start position and playback end position, and speed pattern of the audio content as compared with the configuration directly acquired from the outside.
According to the invention of claim 5, a plurality of guidance objects can be guided.
According to the invention which concerns on Claim 6, guidance can also be heard in the state which the mobile body stopped in front of the guidance object by the speed pattern, and guidance can also be heard while the mobile body passes in front of the guidance object.
According to the invention which concerns on Claim 7, it can avoid that a rapid acceleration or deceleration is added to a moving body.
According to the invention which concerns on Claim 8, the speed command signal which considered the traffic condition can be produced | generated.

FIG. 1 is a diagram showing a schematic configuration of an autonomous driving vehicle equipped with a voice guidance device according to a first embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a control system of the voice guidance device according to the first embodiment. FIG. 3 is a diagram illustrating an example of accompanying information accompanying the audio content. 4A to 4C are diagrams illustrating an example of a speed pattern registered in the accompanying information of the audio content. FIG. 5 is a flowchart showing an example of the operation of the voice guidance device according to the first embodiment. FIG. 6 is a diagram showing an example of accompanying information of audio content according to the second embodiment of the present invention. FIGS. 7A and 7B are diagrams showing speed patterns registered in accompanying information of audio content. FIG. 8 is a timing chart showing an example of the operation of the voice guidance device according to the second embodiment. FIG. 9 is a flowchart illustrating an example of the operation of the voice guidance device according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, about the component which has the substantially same function, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.

[First Embodiment]
FIG. 1 is a diagram showing a schematic configuration of an autonomous driving vehicle equipped with a voice guidance device according to a first embodiment of the present invention.

  This automatic driving vehicle 1 is, for example, one in which an automatic driving control device 3 and a voice guidance device 10 are mounted on a wheelchair 2. The automatic driving vehicle 1 is from the regeneration start position Pst (Xst, Yst) set in the middle of the route for automatic driving until it arrives at the regeneration end position Pen (Xen, Yen) set near the guidance target 4 Voice is output from the voice guidance device 10 and guidance on the guidance target 4 is provided. The automatic driving vehicle 1 is an example of a moving body.

  The wheelchair 2 includes a frame 20, a pair of rear wheels 21, a pair of front wheels 22, a rear wheel motor that rotationally drives the rear wheel 21, a front wheel motor that changes the direction of the front wheel 22, a rear wheel motor, A battery for supplying power to the front wheel motor, the automatic driving control device 3 and the voice guidance device 10 and a camera (not shown) for photographing the front are provided.

  The reproduction start position Pst (Xst, Yst) is a position where voice guidance is started when the automatic driving vehicle 1 reaches the position. The reproduction end position Pen (Xen, Yen) is a position where the voice guidance ends when the automatic driving vehicle 1 reaches the position, or a position where the voice guidance ends when the automatic driving vehicle 1 stops at the position. The reproduction start position Pst (Xst, Yst) and the reproduction end position Pen (Xen, Yen) correspond to longitude information and latitude information.

  The automatic driving vehicle 1 may be an automatic driving wheel, an automatic driving taxi, an electric bicycle, an electric standing motorcycle, an electric skateboard or the like in addition to the automatic driving wheelchair.

  The automatic driving control device 3 includes a car navigation device, and is configured to be able to travel by automatic driving while recognizing a route selected by the car navigation device with an image taken by a camera. Further, the automatic driving control device 3 controls the wheelchair 2 so that the automatic driving vehicle 1 travels at a speed indicated by a speed command signal output from a speed control means 115 described later of the voice guidance device 10. Further, the automatic operation control device 3 is configured to ignore the speed command signal when the speed command signal from the voice guidance device 10 may interfere with the safe driving of the automatic operation control.

  The voice guidance device 10 includes a device main body 11 that controls each part of the voice guidance device 10, an operation display unit 12 that receives information from an operator and displays information, and a voice output unit 13 that outputs voice.

  Although the voice guidance device 10 is incorporated in the wheelchair 2 in the present embodiment, the user 5 may carry the voice guidance device 10 and get on the wheelchair 2. In this case, the voice guidance device 10 may be a portable terminal such as a multi-function mobile phone (smart phone), and the voice output unit 13 may be an earphone.

  The operation display unit 12 is, for example, a touch panel. The audio output unit 13 is, for example, a speaker. Note that the operation display unit 12 may convert the voice output from the voice output unit 13 into characters by the control unit 110 for display for the user 5 with weak hearing.

  FIG. 2 is a block diagram showing a control system of the voice guidance device 10. FIG. 3 is a diagram illustrating an example of accompanying information accompanying the audio content.

  As shown in FIG. 2, the device main body 11 of the voice guidance device 10 includes a control unit 110, a storage unit 120, a wireless communication unit 130, and a position information acquisition unit 140.

  The control unit 110 includes a CPU (Central Processing Unit), an interface, and the like. The CPU functions according to the program 121 to function as the movement status calculation unit 111, the audio content search unit 112, the reproduction time acquisition unit 113, the reproducible distance calculation unit 114, the speed control unit 115, the audio output control unit 116, and the like. . The speed control unit 115 is an example of a signal generation unit. Details of the means 111 to 116 will be described later.

  The storage unit 120 includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like, and stores various data such as the program 121 and the audio content 122.

  The audio content 122 corresponds to the audio data, the audio content ID, the reproduction time Tx, the reproduction start position Pst (Xst, Yst), the reproduction end position Pen (Xen, Yen), and the audio content 122 as shown in FIG. And accompanying information 1220 such as a speed pattern.

  The wireless communication unit 130 includes an antenna 131 (see FIG. 1), and transmits and receives information wirelessly via a mobile phone network or the Internet.

  For example, the position information acquisition unit 140 sequentially receives GPS signals from GPS (Global Positioning System) hygiene, and sequentially acquires position information indicating the current position of the device itself based on the GPS signals. The position information acquisition unit 140 temporarily holds a plurality of acquired position information. The position information includes, for example, latitude information and longitude information, but may include altitude information.

  Based on a plurality of pieces of position information acquired and held by the position information acquisition unit 140, the movement state calculation unit 111 calculates the current movement state of the own device, that is, the movement speed and direction of the own device.

  The audio content search unit 112 accesses a server device (not shown) via the wireless communication unit 130 based on the movement status calculated by the movement status calculation unit 111, and is in the vicinity (for example, 30 minutes) The audio content 122 registered with respect to the guidance object 4 existing in the range (within) is searched. The voice content search means 112 communicates with the car navigation device of the automatic driving control device 3 to acquire information on the route currently set as the automatic driving route, and the guidance target existing on or near the acquired route. The audio content 122 registered with respect to 4 may be searched. Furthermore, the audio content search unit 112 searches the audio content 122 registered for the guidance target 4 from all the audio content 122 existing in a certain area stored in advance in the storage unit 12 of the audio guidance device 10. Good.

  The playback time acquisition unit 113 acquires the playback time from the accompanying information 1220 of the audio content 122.

  The reproducible distance calculating means 114 calculates the reproduction start position Pst (Xst, Yst) and the reproduction end position Pen from the reproduction start position Pst (Xst, Yst) and the reproduction end position Pen (Xen, Yen) according to the following equation (1). A distance (hereinafter also referred to as “reproducible distance”) Lx when connecting (Xen, Yen) with a straight line is calculated.

  Note that the reproducible distance calculating unit 114 may calculate the reproducible distance Lx based on information on a route search result between the reproduction start position Pst and the reproduction end position Pen of the car navigation device.

  The speed control unit 115 corresponds to the speed pattern based on the reproduction time acquired by the reproduction time acquisition unit 113, the reproducible distance Lx calculated by the reproducible distance calculation unit 114, and the speed of the autonomous driving vehicle 1 at the reproduction start position Pst. A speed command signal indicating the speed thus transmitted is transmitted to the automatic driving control device 3 to control the moving speed of the automatic driving vehicle 1.

  Further, the speed control unit 115 obtains the audio content according to the reproduction time of the audio content when the acceleration or deceleration (minus acceleration) at the velocity obtained according to the audio content reproduction time exceeds a predetermined threshold. A speed command signal indicating the speed may not be output. For example, when the speed of the audio data is extremely short because the reproduction time of the audio data is extremely short, the speed control unit 115 sets the reproduction start position Pst when the deceleration according to the speed pattern exceeds a predetermined threshold. You may output the speed command signal which makes it drive | work with the speed Vo when it reached | attained, or leave it to automatic driving | operation by the automatic driving control apparatus 3 without outputting a speed command signal.

  In addition, when the automatic driving vehicle 1 stops for a reason other than the speed command signal transmitted from the voice guidance device 10 after starting the playback of the audio content, the speed control unit 115 sets the time stopped from the playback time of the audio content. A speed command signal may be generated according to the reduced remaining reproduction time. For example, when the automatic driver 1 has a safety stop due to traffic conditions such as traffic lights or unforeseen obstacles, the remaining playback time obtained by subtracting the playback time of the audio content up to that time from the original playback time. A speed command signal may be generated anew based on the above.

  The audio output control means 116 monitors whether or not the autonomous driving vehicle 1 has reached the reproduction start position Pst registered in the accompanying information 1220 of the audio content 122 based on the position information acquired by the position information acquisition unit 140. To do. When the automatic driving vehicle 1 reaches the reproduction start position Pst, the speed control unit 115 is notified of this, and the audio output unit 13 is controlled to start reproduction of the audio data included in the audio content 122. Note that the position information acquired by the position information acquisition unit 140 may have an error of about 5 m with respect to the reproduction start position Pst.

(Speed pattern)
4A to 4C are diagrams illustrating an example of a speed pattern registered in the accompanying information 1220 of the audio content 122. FIG. The speed patterns shown in FIGS. 4A to 4C are examples of a plurality of patterns having different speeds of the autonomous driving vehicle 1 at the regeneration end position Pen.

  The speed pattern shown in FIG. 4A is a linear deceleration pattern s1 that linearly reduces the speed from the playback start position Pst to the playback end position Pen.

  The speed pattern shown in FIG. 4B is a deceleration maintaining pattern s2 that linearly decelerates from the reproduction start position Pst and then has a constant speed. The deceleration maintenance pattern s2 is a guidance object 4 suitable for listening to voice guidance while moving, for example, a three-dimensionally changing object or a uniform landscape.

  The speed pattern shown in FIG. 4C is a deceleration stop pattern s3 that linearly decelerates from the reproduction start position Pst and reaches the reproduction end position Pen before the reproduction ends. The deceleration stop pattern s3 is a guidance object 4 suitable for listening to voice guidance in a state stopped at the reproduction end position Pen, for example, an object for which a visible position is specified, an object to be viewed on a surface, a small object. , Where you want to produce a rest / silence.

(Operation of the first embodiment)
Next, an example of operation | movement of the audio guidance apparatus 10 which concerns on 1st Embodiment is demonstrated with reference to FIG. FIG. 5 is a flowchart showing an example of the operation of the voice guidance device 10 according to the first exemplary embodiment.

  The position information acquisition unit 140 sequentially acquires a plurality of position information indicating the current position of the own device. The movement status calculation unit 111 calculates the movement status of the own device, that is, the movement speed and direction of the own device, based on the plurality of pieces of position information acquired by the position information acquisition unit 140 (S1).

  The audio content search unit 112 accesses a server device (not shown) via the wireless communication unit 130 based on the movement status calculated by the movement status calculation unit 111, and guides the navigation target that exists in the vicinity in the direction of movement of the own device. The audio content 122 registered for 4 is searched (S2).

  The audio content search unit 112 determines whether or not the audio content 122 is registered (S3). If the audio content 122 is registered (S3: Yes), the audio content 122 is downloaded from the server device and stored in the storage unit 120. To remember.

  Next, the reproduction time acquisition unit 113 acquires the reproduction time from the accompanying information 1220 of the audio content 122 stored in the storage unit 120 (S4).

  Next, the reproducible distance calculating means 114 calculates the reproducible distance Lx from the reproduction start position Pst (Xst, Yst) and the reproduction end position Pen (Xen, Yen) of the accompanying information 1220 of the audio content 122 according to the above equation (1). Is obtained (S5).

  When the automatic driving vehicle 1 reaches the reproduction start position Pst, the speed control means 115 is notified of this from the audio output control means 116, and acquires the speed Vo from the automatic driving control device 3. On the other hand, the audio output control means 116 reproduces the audio data included in the audio content 122 (S6). The speed control unit 115 includes the playback time acquired by the playback time acquisition unit 113, the speed Vo at the playback start position Pst, the playbackable distance Lx calculated by the playbackable distance calculation unit 114, and the speed included in the accompanying information 1220 of the audio content 122. A speed command signal is generated based on the pattern. The speed control means 115 outputs a speed command signal to the automatic operation control device 3 (S7).

  The automatic driving control device 3 performs automatic driving by controlling the rear wheel motor and the front wheel motor of the automatic driving vehicle 1 based on the speed command signal output from the speed control means 115.

[Second Embodiment]
In the first embodiment, the automatic driving control device 3 is controlled with one speed pattern for one audio content ID. However, in this embodiment, a plurality of speed patterns are used for one audio content ID. The automatic operation control device 3 is controlled. The following description will focus on differences from the first embodiment.

  The speed control means 115 transmits a speed command signal indicating speeds corresponding to a plurality of speed patterns to the automatic driving control device 3 to control the moving speed of the automatic driving vehicle 1.

  When the autonomous driving vehicle 1 reaches the reproduction start position Pst registered in the accompanying information 1220 of the audio content 122, the audio output control unit 116 starts to reproduce a plurality of audio data included in the audio content 122. The audio output unit 13 is controlled.

  FIG. 6 is a diagram showing an example of accompanying information of audio content according to the second embodiment of the present invention. FIGS. 7A and 7B are diagrams showing speed patterns registered in accompanying information of audio content. The audio content 122 according to the present embodiment includes a plurality of audio data reproduced in time series, and includes a plurality of speed patterns set in time series as the accompanying information 1220.

The accompanying information 1220 of the audio content 120 shown in FIG. 6 includes an audio content ID, a total reproduction time Tx, a control number n, a control start position (Xst, Yst), a control end position (Xen, Yen), a control section C1, and a control. The section C2, ..., and the control section Cn are included. Control section C1~Cn includes reproduction time _T 1 to Tn, a reproduction start position Q0~Qn-1, playback end point Q1 to Qn, and a velocity pattern Sl to S *.

  Q1 to Qn are control positions. Q0 is also the reproduction start position Pst (Xst, Yst) similar to that of the first embodiment. Qn is also the reproduction end position Pen (Xen, Yen) similar to that of the first embodiment.

(Speed pattern)
The speed patterns shown in FIG. 6 use the speed patterns s1, s2, and s3 shown in FIGS. 4A to 4C and the speed patterns s4 and s5 shown in FIGS. 7A and 7B. The speed patterns shown in FIGS. 7A and 7B are examples of a plurality of patterns having different speeds of the autonomous driving vehicle at the regeneration end position.

  The speed pattern shown in FIG. 7A is a stop pattern s4 where the speed Vx is zero, that is, the automatic driving vehicle 1 is not moving.

  The speed pattern shown in FIG. 7B is an acceleration / deceleration pattern s5 in which the speed linearly increases up to the intermediate point of the moving distance and linearly decreases from the intermediate point to the reproduction end position Pen. In addition, a speed pattern is not restricted to what is shown to Fig.4 (a)-(c) and Fig.7 (a), (b).

(Operation of Second Embodiment)
Next, the operation of the second embodiment will be described with reference to FIGS. FIG. 8 is a timing chart showing an example of the operation of the voice guidance device according to the second embodiment. FIG. 9 is a flowchart illustrating an example of the operation of the voice guidance device according to the second embodiment. In the following description, the control number n is 4, Cn is C4, Qn is Q4, and Tn is T4.

  Similar to the first embodiment, the movement status calculation unit 111 calculates the movement status of the own device (S11), and the audio content search unit 112 searches the audio content 122 (S12) and is registered. In the case (S13: Yes), the audio content 122 downloaded from the server device is stored in the storage unit 120. From the accompanying information 1220 of the audio content 122, the control unit 110 obtains the control number n (S14), the reproduction time obtaining unit 113 obtains n reproduction times (S15), and the reproductionable distance calculating unit 114 obtains the reproductionable distance. N are calculated (S16).

(1) Speed control (S18)
In the control section C1 (control positions Q0 to Q1, time T ₁ ), the speed control means 115 outputs a speed command signal to the automatic driving control device 3 so that the automatic driving vehicle 1 moves according to the linear deceleration pattern s1.

The control section C2 (control position Q1-Q2, the time T _2), the speed control unit 115 outputs a speed command signal to the automatic driving controller 3 so that automatic operation vehicle 1 according stop pattern s4 stopped.

The control section C3 (control position Q2-Q3, time _{T 3),} the speed control means 115, automatic operation vehicle 1 outputs a speed command signal to the automatic driving controller 3 to move in accordance with acceleration and deceleration patterns s5.

The control section C4 (control position Q3～Q4, time T _4), the speed control unit 115 outputs a speed command signal to the automatic driving controller 3 so that automatic operation vehicle 1 according stop pattern s4 stopped.

(2) Playback of audio data (S17)
The audio output control means 116 controls the audio output unit 13 to start outputting the audio content 122 when the autonomous driving vehicle 1 reaches the first control position Q0.

In the control section C1 (control positions Q0 to Q1, time T ₁ ) and control section C2 (control positions Q1 to Q2, time T ₂ ), “Torii has been seen in front of the audio data D _1. Fuji Shrine I ... "is outputted from the audio output unit 13, after it becomes silent for a short, the automatic operation vehicle 1 reaches the position before the Torii 4a, standing in front of the audio data D ₂ 'of the torii The stone steps toward the main shrine are visible in the front.

In the control section C3 (control positions Q2 to Q3, time T ₃ ) and control section C4 (control positions Q3 to Q4, time T ₄ ), the voice data D ₃ “Now, a small monument standing on the right hand side of this torii is moved. "I will explain while ..." is output from the audio output unit 13. In addition, the audio data D ₄ “This is a monument. You can see precious historical sculptures in this monument ...” is output from the audio output unit 13 from a little before the monument 4b. “Thank you very much” of the data D ₅ is output from the audio output unit 13.

  Although the embodiments of the present invention have been described above, the embodiments of the present invention are not limited to the above-described embodiments, and various modifications and implementations are possible without departing from the scope of the present invention. is there. For example, the voice guidance device of the present invention may be applied to a car navigation device so that the car navigation device has the function of the voice guidance device.

  In the above embodiment, the reproduction start position and the reproduction end position are specified using the GPS signal. However, the reproduction start position and the reproduction end position may be specified using image information, a moving direction, and a stay time by the camera.

  In the above embodiment, the speed of the autonomous vehicle 1 between the regeneration start position and the regeneration end position is controlled based on the speed pattern, but between the regeneration start position and the regeneration end position or before the regeneration start position. In FIG. 2, when the guidance object 4 such as torii is included in the photographed image by the camera, the control for attenuating the speed may be performed.

  Each means of the control unit 110 may be partially or entirely configured by a hardware circuit such as a reconfigurable circuit (FPGA: Field Programmable Gate Array) or an application specific integrated circuit (ASIC). Good.

  In addition, a part of each unit of the control unit 110, for example, the voice output control unit 116 and the speed control unit 115 may be provided in a cloud server on the network and operate in cooperation with the cloud server and the voice guidance device 10.

  Further, it is possible to omit or change some of the constituent elements of the above-described embodiment within a range not changing the gist of the present invention. In addition, steps can be added, deleted, changed, replaced, and the like in the flow of the above-described embodiment without departing from the scope of the present invention. The program used in the above embodiment can be provided by being recorded on a computer-readable recording medium such as a CD-ROM.

DESCRIPTION OF SYMBOLS 1 ... Auto-driving car, 2 ... Wheelchair, 3 ... Automatic driving control apparatus, 4 ... Guidance object,
4a ... Torii, 4b-4d ... Stone monument, 5 ... User, 10 ... Voice guidance device,
DESCRIPTION OF SYMBOLS 11 ... Apparatus main body, 12 ... Operation display part, 13 ... Audio | voice output part, 110 ... Control part,
111 ... movement status calculation means, 112 ... audio content search means,
113 ... Reproduction time acquisition means, 114 ... Reproducible distance calculation means,
115 ... Speed control means, 116 ... Audio output control means, 120 ... Storage section,
121 ... Program, 122 ... Audio content, 130 ... Wireless communication unit,
131 ... antenna, 140 ... position information acquisition unit, 1220 ... associated information C1 to Cn ... control section, n ... control _{number, D} 1 to D 5 _... audio data,
Pen ... reproduction end position, Pst ... reproduction start position, Q0 to Qn ... control position s1 ... linear deceleration pattern, s2 ... deceleration maintenance pattern, s3 ... deceleration stop pattern,
s4 ... stop pattern, s5 ... acceleration and deceleration _pattern, T 1 _~Tn ... time,
Tx: Playback time, Vo, Vx ... Speed

Claims (10)

A voice guidance device that moves with a moving body,
An audio output unit for outputting audio;
Audio output control means for reproducing audio content and outputting audio from the audio output unit;
Signal generating means for generating a speed command signal indicating the speed of the moving body according to the playback time of the audio content;
Voice guidance device with The signal generating means generates the speed command signal based on a playback time, a playback start position and a playback end position of the audio content;
The voice guidance device according to claim 1. The signal generation means generates the speed command signal based on a playback time, a playback start position and a playback end position of the audio content, and a speed pattern set in advance for the audio content.
The voice guidance device according to claim 1. The audio content includes, as accompanying information, a playback time of the audio content, a playback start position and a playback end position, and the speed pattern,
The signal generating means acquires the playback time, playback start position and playback end position, and the speed pattern of the audio content from the accompanying information.
The voice guidance device according to claim 3. The audio content includes a plurality of audio data reproduced in time series, and includes a plurality of speed patterns set in time series as the accompanying information.
The voice guidance device according to claim 3 or 4. The speed pattern is selected from a plurality of patterns having different speeds of the moving body at the reproduction end position.
The voice guidance device according to any one of claims 3 to 5. When the acceleration or deceleration at the speed determined according to the playback time of the audio content exceeds a predetermined threshold, the signal generation means indicates the speed determined according to the playback time of the audio content. Does not output speed command signal,
The voice guidance device according to any one of claims 1 to 6. The signal generation means, after starting the reproduction of the audio content, when the moving body stops for a reason other than the speed command signal, the remaining reproduction time obtained by subtracting the stopped time from the reproduction time of the audio content In response to generating the speed command signal,
The voice guidance device according to any one of claims 1 to 6. A computer that moves with a moving object,
Audio output control means for reproducing audio content and outputting audio from the audio output unit;
The program for functioning as a signal generation means which produces | generates the speed command signal which shows the speed of the said mobile body according to the reproduction time of the said audio | voice content. The voice guidance device according to any one of claims 1 to 8,
Control means for controlling the speed of the moving body based on the speed command signal generated by the signal generating means;
A self-driving car equipped with.