JP2007253639A - Display control device, display control method, display control program, and recording medium readable by computer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a burden to a driver in backward starting, so that the driver performs safe driving. <P>SOLUTION: An imaging part 101 images backward images of a mobile body. An acquisition part 102 acquires moving information showing a moving state in which the mobile body moves. A detecting part 103 detects a working state of a driving source for moving the mobile body. A deciding part 104 decides whether or not the mobile body starts backward when the driving source reworks based on moving information when stopping of the working of the driving source is detected by the detecting part 103. A control part 105 makes a display part 106 display the backward images of the mobile body when the reworking of the driving source is detected after the decision by the deciding part 104 and the decision result of the deciding part 104 is the backward starting. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a display control device, a display control method, a display control program, and a computer-readable recording medium that control display of an image.

  In recent years, an increasing number of vehicles are equipped with an in-vehicle monitor device that displays various images such as a television broadcast image by a received television broadcast radio wave and a navigation image by a navigation device. Furthermore, some vehicles equipped with an in-vehicle monitor device include a monitor camera that captures an image of the rear of the vehicle, and the rear image captured by the monitor camera when the vehicle is moving backward is used for backward confirmation when the vehicle is moving backward. Some vehicles display on an in-vehicle monitor device.

  Up to now, in order to automatically switch the image of the in-vehicle monitor device to the image of the rear of the vehicle, the back lamp when the driver sets the shift lever to the reverse (reverse: R) position to start the reverse of the vehicle. A proposal has been made to switch the display of the in-vehicle monitor device by detecting power feeding (for example, see Patent Document 1 below).

Utility Model Registration No. 3077110

  However, according to the above-described prior art, the in-vehicle monitor device does not display an image behind the vehicle until the position of the shift lever is switched to reverse. Therefore, when starting the vehicle with the engine turned on from the parking state, the passenger cannot check the rear image with the on-vehicle monitor device until the shift lever position is reversed after the engine is turned on. There was a problem.

  Specifically, when starting the rear with the engine turned on, if there are other vehicles or passers-by behind the vehicle, when checking the rear with the in-vehicle monitor device, the other with the shift lever in the reverse position An example is the problem of having to wait for the passing of a vehicle or a passerby and putting a burden on the driver. Another example is the problem that other vehicles and passers-by pass through the back of the vehicle while the vehicle's back lamp is lit, which causes anxiety to passengers and passers-by of other vehicles. It is done.

  On the other hand, when starting the rear with the engine turned on, if there are other vehicles or passersby behind the vehicle, when checking the rear by visual recognition, wait for the other vehicles or passersby to pass before moving the position of the shift lever. In reverse, the display on the in-vehicle monitor device is switched to the image behind the vehicle. Therefore, there is a problem that the in-vehicle monitor device cannot be used from when the engine is turned on until the shift lever is in the reverse position, and the driver is burdened with visual recognition.

  In order to solve the above-described problems and achieve the object, the display control apparatus according to the first aspect of the present invention includes an imaging unit that captures an image behind the moving body, and movement information that indicates a moving state in which the moving body moves. Acquisition means for acquiring the detection means, detection means for detecting the operating state of the drive source for moving the movable body, and when the operation stop of the drive source is detected, the drive source is restarted based on the movement information A determination unit that determines whether or not the moving body starts backward, and a restart of the drive source is detected after the determination by the determination unit, and the determination result of the determination unit is a backward start, And control means for causing the display means to display an image behind the moving body.

  According to a seventh aspect of the present invention, there is provided a display control method comprising: an imaging step of capturing an image behind a moving body; an acquisition step of acquiring movement information indicating a moving state of the moving body; and the moving body. A detection step for detecting an operating state of the drive source to be moved, and whether the moving body starts rearward when the drive source is restarted based on the movement information when an operation stoppage of the drive source is detected. A determination step for determining whether or not a re-operation of the drive source is detected after the determination in the determination step, and a video behind the moving body is displayed on the display means when the determination result in the determination step is backward start And a control step for displaying.

  A display control program according to the invention of claim 8 causes a computer to execute the display control method according to claim 7.

  According to a ninth aspect of the present invention, a computer-readable recording medium records the display control program according to the eighth aspect.

  Exemplary embodiments of a display control device, a display control method, a display control program, and a computer-readable recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of display control device)
A functional configuration of the display control apparatus according to the first embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating an example of a functional configuration of the display control apparatus according to the first embodiment.

  In FIG. 1, the display control apparatus 100 includes an imaging unit 101, an acquisition unit 102, a detection unit 103, a determination unit 104, a control unit 105, a display unit 106, and a storage unit 107. .

  The imaging unit 101 captures a video behind the moving body. The rear video is, for example, a video that can confirm safety when the moving body moves backward, and a video that confirms the features, passersby, other moving bodies, etc. that exist behind, or the moving body stops It may be a video confirming the space.

  The acquisition unit 102 acquires movement information indicating a movement state in which the moving body moves. The movement information is, for example, information including a current position of the moving body and a moving direction history when the detection unit 103 described later detects the stop of the driving source of the moving body. Further, the movement information may be information including change information related to a change of a gear that controls the moving body.

  The detection unit 103 detects the operating state of the drive source that moves the moving body. The detection of the operating state may be, for example, detecting the stoppage or re-operation of the drive source.

  When the detection unit 103 detects that the drive source is stopped, the determination unit 104 determines whether or not the moving body starts backward when the drive source is restarted based on the movement information acquired by the acquisition unit 102. Determine.

  The determination by the determination unit 104 is, for example, determining whether the behavior of the moving body is forward or backward until the stoppage of the drive source is detected based on the movement information, and the drive source is restarted using the determination result. At this time, it is determined whether or not the moving body starts backward.

  More specifically, when it is determined that the current location of the moving body when the operation stop of the driving source is detected is in the parking lot and the moving direction history of the moving body is forward, the driving source is It may be determined that the moving body starts backward when restarting.

  After the determination by the determination unit 104, the control unit 105 detects the restart of the driving source of the moving body by the detection unit 103, and when the determination result of the determination unit 104 is backward start, the control unit 105 The image behind is displayed.

  More specifically, when the determination result by the determination unit 104 stored in the storage unit 107 described later is a backward start, when the restart of the driving source of the moving body is detected, the display unit 106 described later The display is switched, and the video behind the moving body imaged by the imaging unit 101 is displayed on the display unit 106.

  The display unit 106 displays an image behind the moving body imaged by the imaging unit 101 under the control of the control unit 105. The display unit 106 may display various image information obtained by a communication unit (not shown).

  The storage unit 107 stores the determination result determined by the determination unit 104. The determination result is, for example, a result of determining whether or not the moving body starts backward when the driving source of the moving body restarts. Further, the storage unit 107 may be configured to overwrite and record a determination result of a predetermined capacity and sequentially delete the old determination result. In other words, the control unit 105 may control the display on the display unit 106 based on the latest determination result.

(Contents of processing of display control apparatus 100)
Next, the contents of processing of the display control apparatus 100 according to the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing the contents of processing of the display control apparatus according to the present embodiment. In the flowchart of FIG. 2, first, an image behind the moving body is imaged by the imaging unit 101 (step S201). The rear image is, for example, an image that can confirm safety when the moving body moves backward.

  Next, movement information indicating a movement state in which the moving body moves is acquired by the acquisition unit 102 (step S202). The movement information is information including, for example, the current location of the moving body, movement direction history, and gear change information.

  Subsequently, the operating state of the driving source of the moving body is detected by the detecting unit 103 (step S203). The detection of the operating state may be, for example, detecting the stoppage or re-operation of the drive source.

  Next, when the determination unit 104 detects that the drive source has stopped operating in step S203, based on the movement information acquired in step S202, whether or not to start backward when the drive source in the moving body is restarted. Is determined (step S204).

  Then, it is determined whether or not the detection unit 103 has detected the restart of the driving source of the moving body (step S205). In step S205, waiting for detection of reactivation of the drive source, and if it is detected (step S205: Yes), is the determination result determined in step S206 by the control unit 105 a backward start? It is determined whether or not (step S206).

  In step S206, when the determination result is not backward start (step S206: No), the series of processing ends as it is. In step S206, when the determination result is backward start (step S206: Yes), the display on the display unit 106 is controlled by the control unit 105, and the video behind the moving body captured by the imaging unit 101 is displayed. A display is made (step S207), and a series of processing ends.

  Although not shown in the flowchart of FIG. 2, the determination result determined in step S <b> 204 may be stored in the storage unit 107. In that case, in step S206, the control unit 105 determines the determination result stored in the storage unit 107, and controls the display of the video.

  As described above, according to the present embodiment, when the driving source of the moving body is restarted, the rear image can be quickly displayed when the vehicle starts moving backward. Therefore, the burden on the passenger can be reduced, and the anxiety for the passenger or passerby of another moving body behind the moving body can be reduced.

  Example 1 of the present invention will be described below. In the first embodiment, an example in which the information recording apparatus of the present invention is implemented by a navigation device mounted on a moving body such as a vehicle (including a four-wheeled vehicle and a two-wheeled vehicle) will be described.

(Hardware configuration of navigation device)
Next, a hardware configuration of the navigation apparatus according to the first embodiment will be described with reference to FIG. FIG. 3 is a block diagram of an example of a hardware configuration of the navigation device according to the first embodiment.

  In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 301, ROM 302, RAM 303, magnetic disk drive 304, magnetic disk 305, optical disk drive 306, optical disk 307, and audio. I / F (interface) 308, speaker 309, input device 310, video I / F 311, display 312, camera 313, communication I / F 314, GPS unit 315, and various sensors 316 are provided. ing. Each component 301 to 316 is connected by a bus 320.

  First, the CPU 301 governs overall control of the navigation device 300. The ROM 302 records various programs such as a boot program, a current location calculation program, a route search program, a route guidance program, a voice generation program, a display control program, and a communication program. The RAM 303 is used as a work area for the CPU 301.

  The current location calculation program, for example, calculates the current location of the vehicle (current location of the navigation device 300) based on output information from a GPS unit 315 and various sensors 316 described later.

  The route search program searches for an optimum route from the departure point to the destination point using map information recorded on the magnetic disk 305 described later. Here, the optimum route is the shortest (or fastest) route to the destination point or the route that best matches the conditions specified by the user. Further, not only the destination point but also a route to a stop point or a rest point may be searched. The guidance route searched by executing the route search program is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The route guidance program includes guidance route information searched by executing a route search program, vehicle current location information calculated by executing a current location calculation program, and map information read from a magnetic disk 305 described later. Based on the above, real-time route guidance information is generated. The route guidance information generated by executing the route guidance program is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The voice generation program generates tone and voice information corresponding to the pattern. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated. The generated voice guidance information is output to the voice I / F 308 via the CPU 301.

  The display control program controls the video I / F 311 to switch the video displayed on the display 312. Specifically, for example, in order to display the map information, the display format of the map information displayed on the display 312 is determined by the video I / F 311 and the map information is displayed on the display 312 according to the determined display format. Further, in order to display the television broadcast, the display format is determined by the video I / F 311 according to the received radio wave of the television broadcast received by the communication I / F 314, and the TV video is displayed on the display 312 according to the determined display format. .

  Further, in order to display the video imaged by the camera 313, the display format to be displayed on the display 312 is determined by the video I / F 311 and the video imaged in the determined display format is displayed on the display 312. Although details will be described later with reference to FIGS. 4 and 5, more specifically, the CPU 301 may display an image of the rear of the vehicle when the vehicle starts rearward.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  An example of information recorded on the magnetic disk 305 is map information used for route search / route guidance. The map information includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road, and can be displayed two-dimensionally or three-dimensionally on the display screen of the display 312. Drawn.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, whether or not there is a signal or a pedestrian crossing, whether or not there is a highway doorway or junction, the length (distance) of each link, road width, direction of travel, road type (highway, Such as toll roads and general roads).

  The traffic condition data stores past traffic information obtained by statistically processing past traffic information based on seasons, days of the week, large holidays, and time. The navigation device 300 obtains information on the currently occurring traffic jam based on road traffic information received by the communication I / F 314 described later, and can predict the traffic jam status at a specified time based on the past traffic jam information. Become.

  Although the map information is recorded on the magnetic disk 305 in the first embodiment, it may be recorded on the optical disk 307 described later. Further, the map information is not recorded only on the one provided integrally with the hardware of the navigation device 300, but may be provided outside the navigation device 300. In that case, the navigation apparatus 300 acquires map information via a network through the communication I / F 314, for example. The acquired map information is stored in the RAM 303 or the like.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like.

  The audio I / F 308 is connected to a speaker 309 for audio output. Sound is output from the speaker 309. A plurality of speakers 309 may be installed in the vehicle.

  Examples of the input device 310 include a remote controller having a plurality of keys for inputting characters, numerical values, and various instructions, a keyboard, a mouse, and a touch panel.

  The video I / F 311 is connected to the display 312 and the camera 313. Specifically, the video I / F 311 includes, for example, a graphic controller that controls the entire display 312, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 312 is configured by a control IC or the like.

  The display 312 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 312, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted. A plurality of displays 312 may be provided in the vehicle, for example, for the driver and for a passenger seated in the rear seat.

  The camera 313 captures an image outside the vehicle. The camera 313 may be movable, for example, and may be attached to the front, rear, or ceiling of the vehicle. For example, the camera 313 can confirm the safety behind the vehicle when shooting a video behind the vehicle according to the control of the CPU 301. The video shot by the camera 313 is displayed according to the control of the video I / F 311. 312 may be displayed.

  The communication I / F 314 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 314 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 314 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices, and traffic and traffic distributed from the VICS center. Get road traffic information such as regulations. VICS is a registered trademark.

  The GPS unit 315 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 315 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 316 described later. The information indicating the current location is information for specifying one point on the map information such as latitude / longitude and altitude.

  The various sensors 316 include a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, and the like, and output information that can determine the position and behavior of the vehicle. The output values of the various sensors 316 are used for the calculation of the current location of the vehicle by the CPU 301 and the measurement of the change in speed and direction. The various sensors 316 may be sensors that detect the operating state of the vehicle engine. Specifically, stop or restart may be detected by engine vibration or energization.

  Further, the various sensors 316 may be sensors that detect vehicle gears. Specifically, drive (D), reverse (R), parking (P), neutral (N), etc. are detected by the position of the shift lever. The drive (D) may be configured to detect each of the multistage types.

  Of the functional configuration of the display control apparatus 100 according to the embodiment, the imaging unit 101 is provided by the camera 313, the acquisition unit 102 is provided by the CPU 301, the GPS unit 315, and various sensors 316, and the detection unit 103 is provided by the various sensors 316. The determination unit 104 is realized by the CPU 301, the control unit 105 is realized by the CPU 301 and the video I / F 311, the display unit 106 is realized by the display 312, and the storage unit 107 is realized by the magnetic disk 305 and the optical disk 307.

(Contents of processing of navigation device 300)
Next, the contents of the process of the navigation device 300 according to the first embodiment will be described with reference to FIG. In the flowchart of FIG. 4, it is assumed that an image of the rear of the vehicle is captured by the camera 313 while the engine of the vehicle is operating. FIG. 4 is a flowchart of the process performed by the navigation device according to the first embodiment.

  In the flowchart of FIG. 4, first, the navigation apparatus 300 acquires vehicle movement information by the CPU 301, the GPS unit 315, and various sensors 316 (step S401). The vehicle movement information is information including, for example, the current position of the vehicle, the movement direction history, and gear change information.

  Next, the CPU 301 determines whether or not the various sensors 316 have detected a stop of the vehicle engine (step S402). In step S402, when the stop of the engine is not detected (step S402: No), the process returns to step S401 and the process is repeated.

  If the engine stop is detected in step S402 (step S402: Yes), the CPU 301 determines whether or not the behavior before the engine stop is forward (step S403).

  More specifically, the behavior before the engine is stopped is determined by referring to the movement direction history of the vehicle included in the movement information acquired in step S401. Further, the movement information may have a configuration in which a predetermined capacity is overwritten on a recording medium such as the magnetic disk 305, the optical disk 307, or other buffer memory, for example, and moves backward for a predetermined time when the engine stop is detected in step S402. Information is read.

  If it is determined in step S403 that the behavior before the engine stop is forward (step S403: Yes), the CPU 301 determines that the vehicle is traveling backward when the engine is restarted with respect to the traveling direction of the vehicle (step S404). .

  In step S403, when it is determined that the behavior before the engine stop is not forward (step S403: No), the CPU 301 determines that the vehicle is moving forward with respect to the vehicle traveling direction when the engine is restarted (step S403). S405).

  In the flowchart of FIG. 4, it is configured to determine whether the traveling direction of the vehicle when the engine is restarted is forward or backward, but the forward direction may include an oblique forward direction. In other words, it may be configured to determine whether or not the start requires a backward confirmation. Although not shown in the flowchart of FIG. 4, the determination results in steps S404 and S405 may be temporarily recorded on a recording medium such as the magnetic disk 305, the optical disk 307, or other buffer memory.

  Thereafter, it is determined whether the restart of the engine is detected by the various sensors 316 (step S406). Here, the detection of the restart of the engine is awaited, and if it is detected (step S406: Yes), the CPU 301 determines whether the determination result in step S404 or step S405 is a backward start (step). S407).

  More specifically, the determination result may be determined with reference to a determination result temporarily recorded on a recording medium such as the magnetic disk 305, the optical disk 307, or another buffer memory.

  In step S407, when the determination result is not backward departure (step S407: No), the series of processes is terminated as it is.

  In step S407, when the determination result is a backward start (step S407: Yes), the CPU 301 controls the video I / F 311 next to the rear of the vehicle imaged by the camera 313 on the display 312. A video is displayed (step S408), and a series of processing is terminated.

  As described above, according to the first embodiment, when the behavior of the vehicle before the engine is stopped is forward, the traveling direction of the vehicle when the engine is restarted is determined to be backward start. If it is determined that the vehicle will start backward when the engine is restarted, the display on the display will be an image of the rear of the vehicle when the engine is restarted. Confirmation can promote safe driving.

  Even if there is another vehicle or a passerby behind the vehicle, the display on the display becomes an image behind the vehicle just by restarting the engine, so it is necessary to wait with the shift lever position reversed There is no.

  In other words, if you restart the engine and check the back by the display on the display, when there are no other vehicles or passersby behind the vehicle, you can reverse the shift lever position and start backward, The burden on the driver can be reduced. In addition, since the back lamp of the vehicle is not turned on while the vehicle and the passer-by are passing behind the vehicle, the passengers and passers-by of the other vehicle can be relieved.

  Next, a second embodiment of the present invention will be described. In the second embodiment, the navigation device 300 described in the first embodiment described above describes a case in which when the vehicle stops in the parking space, the start direction of the vehicle when the engine is restarted is determined by the gear before stopping. To do. The hardware configuration of the navigation device 300 according to the second embodiment is substantially the same as that shown in FIG.

(Contents of processing of navigation device 300)
The content of the process of the navigation apparatus 300 concerning the present Example 2 is demonstrated using FIG. In the flowchart of FIG. 5, it is assumed that the video behind the vehicle is being captured by the camera 313 while the engine of the vehicle is operating. FIG. 5 is a flowchart of the process performed by the navigation device according to the second embodiment.

  In the flowchart of FIG. 5, first, the navigation device 300 acquires vehicle movement information by the CPU 301, the GPS unit 315, and various sensors 316 (step S501). The vehicle movement information is information including, for example, the current position of the vehicle, the movement direction history, and gear change information.

  And based on the movement information acquired by CPU301 in step S501, it is judged whether the vehicle entered into the parking space (step S502). The parking space is not limited to, for example, a chargeable parking lot, and may be any space where vehicles can be parked. Specifically, even if it is a point that is not registered as a parking lot in the map information, it may be that the vehicle has entered the parking space when the vehicle stops moving in the vicinity of a predetermined facility.

  In step S502, when the vehicle has not entered the parking space (step S502: No), the process returns to step S501 and the process is repeated.

  In step S502, when the vehicle has entered the parking space (step S502: Yes), the CPU 301 determines whether the various sensors 316 have detected the stop of the vehicle (step S503). More specifically, it may be determined whether or not the various sensors 316 have detected that the gear according to the position of the shift lever has become parking (P).

  In step S503, when a stop is not detected (step S503: No), it returns to step S501 and repeats a process.

  If a stop is detected in step S503 (step S503: Yes), it is next determined whether or not a stop of the vehicle engine is detected by the various sensors 316 (step S504).

  In step S504, when the stop of the engine is not detected (step S504: No), the process returns to step S501 and the process is repeated.

  If it is detected in step S504 that the engine has stopped (step S504: Yes), the CPU 301 determines whether or not the gear before stopping is the drive (D) (step S505). In other words, it is determined whether the vehicle before stopping has advanced and stopped, or backed and stopped.

  More specifically, the gear before the vehicle stops is determined by referring to the vehicle gear change information detected by the various sensors 316. The change information may be configured to be overwritten with a predetermined capacity on a recording medium such as the magnetic disk 305, the optical disk 307, or another buffer memory, for example, and when the engine stop is detected in step S504, the change information moves back a predetermined time. Information is read.

  In step S505, when it is determined that the gear before stopping is the drive (D) (step S505: Yes), the CPU 301 determines that the vehicle starts backward when the parking space is exited after restarting the engine of the vehicle ( Step S506).

  In step S505, if it is determined that the gear before the stop is not drive (D) (step S505: No), the CPU 301 determines that the vehicle starts moving forward after the vehicle is restarted after the vehicle is restarted. (Step S507).

  Note that the determination regarding the traveling direction when leaving the parking space may be determined together with the gear change information and the vehicle movement information. More specifically, it is determined whether movement has been performed according to the changed gear as the gear is changed. In other words, a gear that is changed for a moment when the gear is changed may not be used as a criterion.

  Moreover, in the flowchart of FIG. 5, although it is set as the structure which determines whether the advancing direction of the vehicle at the time of parking space leaving becomes front or back, it is good also as including the diagonally forward direction etc. in the front. In other words, it may be configured to determine whether or not the start requires a backward confirmation. Further, although not shown in the flowchart of FIG. 5, the determination results in steps S506 and S507 may be temporarily recorded on a recording medium such as the magnetic disk 305, the optical disk 307, or other buffer memory.

  Thereafter, it is determined whether the restart of the engine is detected by the various sensors 316 (step S508). Here, the detection of the restart of the engine is awaited, and if it is detected (step S508: Yes), the CPU 301 subsequently determines whether the determination result in step S506 or step S507 is a backward start (step). S509).

  More specifically, the determination result may be determined with reference to a determination result temporarily recorded on a recording medium such as the magnetic disk 305, the optical disk 307, or another buffer memory.

  In step S509, when the determination result is not backward start (step S509: No), the series of processes is ended as it is.

  In step S509, if the determination result is a backward start (step S509: Yes), the CPU 301 controls the video I / F 311 next to the rear of the vehicle imaged by the camera 313 on the display 312. A video is displayed (step S510), and a series of processing is terminated.

  As described above, according to the second embodiment, the traveling direction of the vehicle when leaving the parking space is determined based on the movement of the vehicle from entering the parking space to stopping. Therefore, it is possible to accurately determine the rear start at the time of restarting the engine and display the rear image of the vehicle, so that it is possible to improve driving safety.

  As described above, according to the present invention, when the drive source of the moving body is restarted, the rear image can be quickly displayed when starting backward. Therefore, the burden on the passenger can be reduced, and the anxiety for the passenger or passerby of another moving body behind the moving body can be reduced.

  Further, according to the present invention, when the behavior of the vehicle before stopping the engine is forward, the traveling direction of the vehicle at the time of restarting the engine is determined to start backward. If it is determined that the vehicle will start backward when the engine is restarted, the display on the display will be an image of the rear of the vehicle when the engine is restarted. Confirmation can promote safe driving.

  In other words, just by restarting the engine, the display on the display becomes the video behind the vehicle, so even if there are other vehicles or passers-by behind the vehicle, it waits with the shift lever position reversed. There is no need to do.

  In other words, if you restart the engine and check the back by the display on the display, when there are no other vehicles or passersby behind the vehicle, you can reverse the shift lever position and start backward, The burden on the driver can be reduced. In addition, since the back lamp of the vehicle is not turned on while the vehicle and the passer-by are passing behind the vehicle, the passengers and passers-by of the other vehicle can be relieved.

  Further, according to the present invention, for example, in FIG. 4 or FIG. 5, the video behind the vehicle is described as being captured by the camera 313 while the engine of the vehicle is running. It is good also as a structure imaged whenever the determination result at the time of starting is back start. Reduction of power consumption can be realized by performing shooting by the camera 313 only when displaying a rear image.

  Furthermore, according to the present invention, if the image captured by the camera 313 is detected and an obstacle such as a vehicle or a passerby is detected and notified to the passenger, Since safety can be confirmed reliably, safety can be improved.

  The display control method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

2 is a block diagram illustrating an example of a functional configuration of a display control device according to a first embodiment; FIG. It is a flowchart which shows the content of the process of the display control apparatus concerning this Embodiment. It is a block diagram which shows an example of the hardware constitutions of the navigation apparatus concerning the present Example 1. FIG. It is a flowchart which shows the content of the process in the navigation apparatus concerning the present Example 1. It is a flowchart which shows the content of the process in the navigation apparatus concerning the present Example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Display control apparatus 101 Imaging part 102 Acquisition part 103 Detection part 104 Determination part 105 Control part 106 Display part 107 Storage part

Claims (9)

An imaging means for capturing an image of the rear of the moving body;
Obtaining means for obtaining movement information indicating a movement state in which the moving body moves;
Detecting means for detecting an operating state of a driving source for moving the moving body;
Determination means for determining whether or not the moving body starts backward when the drive source is restarted based on the movement information when the operation stop of the drive source is detected;
Control means for displaying a rear image of the moving body on the display means when the restart of the drive source is detected after the determination by the determination means and the determination result of the determination means is backward start;
A display control apparatus comprising:   The determination means determines whether the behavior of the moving body is forward or backward until the operation stop of the drive source is detected based on the movement information, and the drive source is restarted using the determination result. The display control apparatus according to claim 1, wherein when it is determined whether or not the moving body starts backward.   The said acquisition means acquires the information of the present location and the movement direction log | history of the said mobile body when the operation stop of the said drive source is detected as the said movement information, The Claim 1 or 2 characterized by the above-mentioned. Display control device.   The determination means is based on the movement information, the current point of the moving body when the operation stop of the drive source is detected exists in a parking lot, and the moving direction history of the moving body is forward The display control apparatus according to claim 3, wherein, when it is determined, the moving body determines to start backward when the drive source is restarted.   The display control apparatus according to claim 1, wherein the acquisition unit acquires, as the movement information, change information related to a change in a gear that controls the moving body. A storage unit for storing the determination result of the determination unit;
When the detection means detects that the drive source is restarted, the control means displays a video of the rear of the moving body on the display means when the determination result stored in the storage means is backward start. Is displayed. The display control apparatus according to claim 1, wherein An imaging step of imaging a video behind the moving body;
An acquisition step of acquiring movement information indicating a movement state in which the moving body moves;
A detection step of detecting an operating state of a drive source for moving the moving body;
A determination step of determining whether or not the moving body starts backward when the drive source is restarted based on the movement information when the operation stop of the drive source is detected;
A control step of causing the display means to display an image of the rear of the moving body when the restart of the drive source is detected after the determination of the determination step and the determination result of the determination step is backward start;
A display control method comprising:   A display control program for causing a computer to execute the display control method according to claim 7. A computer-readable recording medium on which the display control program according to claim 8 is recorded.

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