JP3967188B2 - Image output control device, method thereof, program thereof, recording medium recording the program, and navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention vehicle Against Reverse The present invention relates to an image output control device that appropriately displays image data of a situation around a direction on a display unit, a method thereof, a program thereof, a recording medium recording the program, and a navigation device.
[0002]
[Background]
2. Description of the Related Art In recent years, a configuration is known in which a driver who travels a vehicle as a moving body can easily check the rearward direction of the vehicle, which is particularly difficult to check, using a back camera. In this configuration, the back camera is arranged in the vehicle so that the situation behind the vehicle can be imaged, and the captured image data is displayed on the display device arranged in the vehicle. The display of the situation behind the vehicle on this display device is only when the vehicle is moving backward. The display device is normally used as a navigation device that informs the display device of vehicle movement guidance, or by outputting a television image for viewing by a passenger on the vehicle.
[0003]
By the way, in the structure which can confirm the back using this back camera, in order to display the image data from a back camera at the time of reverse drive, the reverse drive of the vehicle is detected. This reverse detection of the vehicle is performed by, for example, recognizing the shift position of the shift lever for operating the transmission of the vehicle by a sensor attached outside the shift lever or by illuminating the rear of the vehicle from a battery mounted on the vehicle There are known configurations such as recognizing a voltage value of a line for supplying power to a back lamp constituting a circuit for the purpose.
[0004]
[Problems to be solved by the invention]
However, in the configuration for recognizing the shift position of the shift lever, a special sensor and dedicated hardware for recognizing the traveling of the vehicle by reading a signal from the sensor are required.
[0005]
In addition, the configuration for recognizing the voltage value of the line that supplies power to the back lamp does not use the configuration for steering the vehicle, so that it does not require a special configuration and can be installed relatively easily. By the way, the circuit configuration for supplying electric power to the back lamp differs depending on the type of vehicle. Further, the voltage value reading position of this circuit is near the back lamp. Therefore, the relationship between the voltage value and the lighting of the back lamp is different for each type of circuit configuration that supplies power to the back lamp. For this reason, it is necessary to recognize the read voltage value and the voltage value of the back lamp, but it is difficult for a general user to arrange.
[0006]
In view of such problems, the present invention vehicle Against Reverse An object of the present invention is to provide an image output control device, a method thereof, a program thereof, a recording medium on which the program is recorded, and a navigation device, which are capable of appropriately displaying image data relating to a situation around a direction.
[0007]
[Means for Solving the Problems]
The invention described in claim 1 The vehicle used for guiding the movement of a vehicle provided with a circuit for applying a voltage to a back lamp during reverse travel based on map information Get travel status information about the travel status of Then, based on the acquired movement status information, movement direction information relating to the movement direction of the vehicle is generated. Movement status information acquisition means; and Vehicle circuit Output from vehicle Different depending on the direction of movement Voltage value The Read Mobile signal acquisition means, and vehicle Against Reverse of the vehicle An image data acquisition means for acquiring the situation around the direction as image data, and the moving body signal acquisition means Conversion information storage means for comparing the read voltage value with the movement direction information generated by the movement status information acquisition means and associating the movement direction information of the vehicle for each different voltage value and storing it as conversion information. , In the mobile signal acquisition means The read voltage value is checked against the conversion information stored in the conversion information storage means. Said vehicle The movement direction recognition means for recognizing the movement direction and the movement direction recognition means vehicle Of the image data acquired by the image data acquisition means vehicle Against Reverse direction Same as An image output control apparatus comprising: display control means for displaying the image data on a display means by recognizing that the direction is a direction.
[0008]
In this invention, it is acquired by the moving body signal acquisition means. Vehicle circuit Is output from vehicle of Apply to back lamp Different Voltage value From the travel status information acquisition means vehicle Recognized by the movement direction recognition means based on the movement status information on the movement status of vehicle The moving direction was acquired by the image data acquisition means vehicle Against Reverse Of the image data that is the situation around the direction vehicle Against Reverse direction Same as By recognizing the direction as the display control means, the image data is displayed on the display means. By this, it was acquired by the movement status information acquisition means vehicle Based on travel status information vehicle Differs in the direction of movement output from Voltage value It is possible to automatically determine the moving direction of Voltage value Therefore, it is not necessary to recognize the moving direction in advance, and it is possible to easily obtain a configuration in which image data is appropriately displayed without malfunction.
[0010]
In this invention, based on the movement status information generated and acquired by the movement status information acquisition means by the movement direction recognition means. vehicle Direction information and the moving body signal acquisition means Read Different Voltage value And contrast with Voltage value Every vehicle The movement direction information is associated with each other and stored as conversion information in the conversion information storage means. Voltage value The When read By checking against stored conversion information vehicle Recognize the direction of movement. As a result, vehicle The direction of movement based on the movement status of vehicle Since the movement direction is recognized on the basis of the associated conversion information, vehicle And the signal output from vehicle Therefore, it is possible to easily obtain a configuration in which the relationship between the signal and the moving direction can be automatically recognized without the need to recognize the relationship with the moving direction.
[0012]
In this invention, the movement status information acquired by the movement status information acquisition means is based on the map information. vehicle Used to guide the movement of vehicle It is the movement status information regarding the movement status of the. As a result, vehicle Since the movement status information used for the movement is used, a configuration for separately acquiring the movement status information is unnecessary, and the configuration can be simplified.
[0014]
In the present invention, the image data acquired by the image data acquisition means is vehicle This is the situation around the backward direction. This allows for example vehicle When moving forward, the image will be displayed appropriately on the display means, making it particularly difficult to confirm vehicle It is preferable to use it in a configuration for appropriately displaying the image data of the surrounding situation in the backward direction.
[0016]
In this invention, vehicle Arranged in vehicle When going backward back Voltage value from the circuit that applies voltage to the lamp Reading The Because of this , Special Without using another configuration back It can be easily obtained with a simple configuration that reads the voltage value from a circuit that applies a voltage to illuminate the lamp, and also with respect to the traveling direction. back Even if the voltage value from the circuit that applies the voltage to the lamp is different, it is easy to obtain a configuration that automatically recognizes the traveling direction from the voltage value without recognizing the relationship between the voltage value from the circuit and the traveling direction in advance. It is done.
[0017]
Claim 2 The invention according to claim 1 is an image output control apparatus according to claim 1 developed into an image output control method. Vehicle provided with a circuit for applying a voltage to the back lamp during reverse travel Against Reverse of the vehicle An image output control method for controlling image data related to a situation around a direction to be displayed on a display unit by a calculation unit, The vehicle used for guiding the movement of the vehicle based on the map information Get travel status information about the travel status of And generating movement direction information related to the movement direction of the vehicle based on the acquired movement state information. And said Vehicle circuit Output from vehicle For the direction of movement High level and low level Different Voltage value The reading , The read voltage value is compared with the generated moving direction information, the moving direction information of the vehicle is correlated for each different voltage value to generate conversion information, and the voltage value output from the circuit is read. Compared with the generated conversion information Said vehicle Recognize the moving direction of this vehicle Is the moving direction of the image data vehicle Against Reverse direction Same as By recognizing the direction, the image data is displayed on the display means. Thus, the same effect as that attained by the 1st aspect can be enjoyed.
[0019]
Claim 3 The invention described in claim 2 An image output control program that causes an arithmetic means to execute the image output control method described in (1).
[0020]
In the present invention, for example, a general-purpose computer is used as a computing means and installed. 2 The image output control method described in (1) can be executed by the calculation means, and the utilization of the present invention can be greatly promoted.
[0021]
Claim 4 The invention described in claim 3 An image output control program according to the above is recorded so as to be readable by an arithmetic means.
[0022]
In this invention, the claim 2 Claims for executing the image output control method according to claim 1 3 Since the image output control program described in 1 is recorded on a recording medium, the image output control program can be easily handled, and the use of the present invention can be greatly promoted.
[0023]
Claims 2 The invention described in claim 3 Invention and claims 4 In the invention described in the above, the computing means is, for example, a single personal computer, a configuration in which a plurality of computers are combined in a network, an element such as an IC or CPU such as a microcomputer, and a plurality of electrical components. It is defined as meaning including circuit boards.
[0024]
Claim 5 The invention described in claim 1 Based on the described image output control device and the movement status information acquired by the image output control device vehicle Corresponding to the movement situation of vehicle The navigation apparatus is characterized by comprising guidance notifying means for notifying the movement guidance.
[0025]
In this invention, Vehicle circuit Differs in the direction of movement output from Voltage value The structure in which the moving direction can be automatically determined from the image and the image data is appropriately displayed without malfunction is easily obtained. 1 Moving object acquired by the described image output control device Status In response to information-based travel situations vehicle Information notifying means for notifying the movement guidance Provided The As a result, the guidance notification means vehicle Necessary to guide the movement of vehicle Claim the movement status of 1 Since the described image output control apparatus is also shared, appropriate display of image data and guidance of movement of the moving body can be obtained without providing a special configuration.
[0026]
Claim 6 The invention described in claim 5 In the navigation device described in the above, the image data acquired by the image output control device is displayed, and the guidance notification means vehicle It is characterized by comprising display means for informing the movement guidance by display.
[0027]
In this invention, the display means uses the guidance notification means together with the image data acquired by the image output control device. vehicle The movement guidance is notified by display. As a result, vehicle In case of normal movement vehicle When it is necessary to display the image data by displaying the guidance of movement I.e. reverse Only this can be displayed appropriately and is particularly suitable in this configuration.
[0028]
Claim 7 In the invention described in claim 5 Or 6 In the navigation device described in vehicle Against Reverse An image pickup means for picking up an image of a situation around the direction and outputting image data is provided.
[0029]
In this invention, vehicle Against Reverse An imaging means for imaging the situation around the direction and outputting image data is provided. As a result, it is possible to easily acquire and appropriately display the image data picked up by the image pickup means, and this configuration is particularly suitable.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0031]
[Configuration of navigation device]
FIG. 1 is a block diagram showing a schematic configuration of the navigation device according to the present embodiment. FIG. 2 is a circuit diagram showing a circuit configuration of a series circuit for each type of vehicle that turns on the back lamp of the vehicle. FIG. 3 is a timing chart showing the relationship between the shift position and the voltage value at the reading position on the series circuit.
[0032]
In FIG. 1, 1 is a navigation device, and this navigation device 1 is disposed in a vehicle (not shown) such as a passenger car as a moving body. The navigation device 1 guides the traveling of the vehicle in accordance with the traveling state of the vehicle.
[0033]
Here, the vehicle is a so-called not-illustrated wheel, an engine that is an internal combustion engine, a transmission that transmits the driving force of the engine to the wheels and rotates the wheel in a predetermined direction, and a so-called shift operation means that changes the shift state of the transmission. The vehicle is provided with steering means for changing the traveling direction of the vehicle by the rotation of the shift lever and wheels, and moves forward and backward so that it can be rotated as appropriate. In addition, the vehicle includes, for example, a 12V battery BT and a back lamp BL that is supplied with electric power from the battery BT and illuminates a reverse direction, which is a moving direction of the vehicle when the vehicle is reverse. And the navigation apparatus 1 operate | moves by supplying electric power from the battery BT mounted in the vehicle.
[0034]
Here, for example, there are two types of circuit configurations as shown in FIG. 2 for turning on the back lamp BL when the vehicle is moving backward, and one of the circuit configurations is adopted for each type of vehicle. That is, the back lamp BL is connected to the battery BT and grounded. As shown in FIG. 2A, one circuit configuration includes a switch SW that is closed when the shift lever is positioned at a shift position for moving the vehicle backward, at a connection point between the back lamp BL and the battery BT. It is provided and configured. As shown in FIG. 2B, the other circuit configuration includes a switch SW provided on the ground side of the back lamp BL. In these circuit configurations, the back lamp BL is lit by closing the switch SW.
[0035]
As shown in FIG. 1, the navigation device 1 includes a GPS (Global Positioning System) receiving unit 2, a speed sensor unit 3, an azimuth sensor unit 4, an acceleration sensor unit 5, and map information as map information storage means. A storage unit 6, an operation unit 7 as an input unit, a display unit 8, a voice guidance unit 9, a back camera 10 as an imaging unit, and a system control unit 11 are provided.
[0036]
A GPS antenna 13 is connected to the GPS receiver 2. The GPS receiver 2 receives navigation radio waves output from a GPS satellite, which is an artificial satellite (not shown), via a GPS antenna 13. Then, the GPS receiving unit 2 calculates a pseudo coordinate value of the current position based on the received signal, and outputs it to the system control unit 11 as GPS data.
[0037]
The speed sensor unit 3 detects the traveling speed of the vehicle. The speed sensor unit 3 reads, for example, a pulse signal or a voltage value output by rotation of an axle or a wheel, appropriately converts it into speed data or actual acceleration data based on a pulse or a voltage, and outputs it to the system control unit 11.
[0038]
The azimuth angle sensor unit 4 includes a so-called gyro sensor, and detects the azimuth angle of the vehicle, that is, the traveling direction in which the vehicle moves forward. The azimuth angle sensor unit 4 converts the detected traveling direction into azimuth angle data using, for example, a pulse or a voltage, and outputs the azimuth angle data to the system control unit 11.
[0039]
The acceleration sensor unit 5 compares, for example, a gravitational acceleration and an acceleration generated by the traveling of the vehicle, and detects the moving state of the vehicle in the vertical direction that is the vertical direction. The acceleration sensor unit 5 converts the detected movement state into acceleration data based on, for example, a pulse or a voltage, and outputs the acceleration data to the system control unit 11.
[0040]
The map information storage unit 6 as the map information storage means stores map information such as a road map, which will be described later, additional information necessary for vehicle travel guidance, and the like so as to be readable. For example, it has a drive for reading map information or additional information recorded on a DVD-ROM (Digital Versatile Disc-Read Only Memory), an optical disk such as a hard disk, or a magnetic disk. Then, the map information storage unit 6 outputs the read map information and additional information to the system control unit 11 as appropriate.
[0041]
The operation unit 7 as an input unit has various operation buttons (not shown) for appropriately operating the navigation device 1 such as a command for displaying a traveling state that is a moving state of the vehicle. By the input operation of these operation buttons, the operation unit 7 appropriately outputs a predetermined signal to the system control unit 11 to set and input the input operation content. The operation unit 7 is not limited to the input operation of the operation buttons, and may be configured to set and input various conditions by, for example, an input operation using a touch panel provided in the display unit 8 or an input operation using voice.
[0042]
The display unit 8 includes map information and additional information output from the map information storage unit 6, TV image data received by a TV receiver (not shown), and image data recorded on a recording medium such as an optical disk or a magnetic disk and read by a drive. The image data taken by the back camera is displayed as appropriate. Specifically, liquid crystal, organic EL (electoroluminescence), PDP (Plasma Display Panel), CRT (Cathode-Ray Tube), etc. are used.
[0043]
The voice guide unit 9 has sounding means such as a speaker (not shown). The voice guidance unit 9 informs a passenger such as a driver of various information by voice output from the sound generation means, for example, in guiding the traveling of the vehicle, such as the traveling direction and traveling situation of the vehicle. The sound generation means can appropriately output, for example, TV sound data received by a TV receiver, sound data recorded on an optical disk, a magnetic disk, or the like.
[0044]
The back camera 10 serving as an imaging unit is disposed, for example, in a rear portion of the vehicle in the backward direction, and images the rear, which is a surrounding situation in the backward direction of the vehicle, as a surrounding situation in the traveling direction of the vehicle. Then, the data acquired by imaging is output to the system control unit 11.
[0045]
The system control unit 11 includes various input / output ports (not shown) such as a GPS reception port to which the GPS reception unit 2 is connected, a key input port to which the operation unit 7 is connected, a display unit control port to which the display unit 8 is connected, audio It has an audio control port to which the guide unit 9 is connected, an image input port as image data acquisition means to which the back camera 10 is connected, a vehicle signal input port as mobile object signal acquisition means, and the like.
[0046]
Then, the system control unit 11 acquires a signal from the back camera 10 as image data at the image input port. Furthermore, the system control unit 11 acquires a signal that is output from the vehicle at the vehicle signal input port and that is different from the traveling direction of the vehicle. That is, the vehicle signal input port is, for example, a position in the vicinity of the back lamp BL indicated by C in the wavy line in FIG. 2 in a series circuit that supplies power to turn on the back lamp BL shown in each circuit diagram of FIG. Read the voltage value. Note that due to the structure of the vehicle, the user can connect the reading line only near the back lamp BL.
[0047]
Specifically, the system control unit 11 acquires a rectangular wave signal as shown in FIG. 3 at the vehicle signal input port. In FIG. 3, when the shift position of the shift lever is switched from the low level to the high level when the shift position is switched to the reverse position where the vehicle moves backward ((a) in FIG. 3), one of the shift levers shown in FIG. At the position C in the series circuit of the vehicle type, the low level output is switched to the high level output, for example, the voltage value is switched from 0V to 12V. Further, at the position C of the other series circuit shown in FIG. 2B, the high level output is switched to the low level output, for example, the voltage value is switched from 12V to 0V. As described above, the system control unit 11 reads the voltage value switched in accordance with the traveling direction of the vehicle at the shift position at the vehicle signal input port, and obtains it as a signal output from the vehicle.
[0048]
In addition, the system control unit 11 is a program developed on an OS (Operating System) that controls the operation of the entire navigation device 1 as a traveling situation recognition means 15 as a movement situation information acquisition means, a destination recognition means 16, It has a movement route setting means 17, a guidance notification means 18, a movement direction recognition means 19, and a display control means 20. Further, the moving direction recognition means 19 has conversion information storage means 21.
[0049]
The traveling state recognition unit 15 calculates a plurality of current pseudo positions of the vehicle based on the vehicle speed data and the azimuth data output from the speed sensor 3 and the azimuth sensor 4. Further, the traveling state recognition unit 15 recognizes the current pseudo coordinate value of the vehicle based on the GPS data regarding the current position output from the GPS receiver 2. Then, the traveling state recognition unit 15 compares the calculated current pseudo position with the recognized current pseudo coordinate value, and calculates the current position of the vehicle to be displayed on the map information displayed on the screen on the display unit 8. Recognize the current position.
[0050]
Further, the traveling state recognition means 15 determines the inclination and height difference of the road on the basis of the vehicle acceleration data output from the acceleration sensor unit 5, calculates the current pseudo position of the vehicle, and determines the current position. recognize. That is, it is possible to accurately recognize the current position of the vehicle even at places that overlap on a plane such as a three-dimensional intersection or an expressway. In addition, when traveling on mountain roads or hills, accurate travel is achieved by correcting the error between the travel distance obtained from speed data and azimuth data alone and the actual travel distance of the vehicle using the detected road slope. Recognize the current position as a situation.
[0051]
In addition, the travel status recognition means 15 calculates travel status information related to the travel status such as the speed, travel direction, and travel distance of the vehicle based on speed data, azimuth angle data, acceleration data, and the like. In addition, the driving | running | working condition recognition means 15 can recognize the departure point used as the starting point set and input by the operation part 7 other than the present position of the vehicle mentioned above as a present position as a pseudo present position.
[0052]
Various types of information, which are travel state information obtained by the travel state recognition unit 15, are stored in a storage unit (not shown) such as a RAM (Random Access Memory) provided in the system control unit 11. The storage unit is not limited to the configuration provided in the system control unit 11 and may be provided outside so as to be able to transmit and receive information to and from the system control unit 11. Specifically, a database connected to the system control unit 11 or a server connected to the system control unit 11 via communication means and capable of transmitting and receiving information via a wireless medium may be provided.
[0053]
The destination recognizing means 16 acquires the destination information related to the destination set and input by the input operation of the operation unit 7, for example, and recognizes the position of the destination. As destination information to be set and input, various information for specifying a feature such as coordinates such as latitude and longitude, an address, and a telephone number can be used. The destination information recognized by the destination recognition unit 16 is stored in the storage unit.
[0054]
The travel route setting means 17 is a destination recognized by the destination recognition means 16 based on the current position of the vehicle recognized by the travel status recognition means 15 or a pseudo current position such as a departure point set and input by the operation unit 7. Set the travel route to. The travel route is set by searching, for example, a road that is a passage through which a vehicle can pass, based on the map information or additional information acquired by the map information storage unit 6, and having a short travel time or a short travel distance. Set a route or a route that avoids traffic jams and traffic restrictions. The set movement route is stored in the storage means and is appropriately displayed on the display unit 8 in response to the setting input of the operation unit 7.
[0055]
The guidance notifying means 18 provides guidance on the contents for supporting the traveling of the vehicle, which is guidance stored in the storage means regarding the movement of the vehicle in accordance with the traveling state of the vehicle. Notify by pronunciation. For example, a predetermined arrow or symbol may be displayed on the screen of the display unit 8, or “700m ahead, the XX intersection is in the right direction toward △△”, “Departed from the travel route”, “Future traffic, Is a voice output.
[0056]
The moving direction recognizing means 19 recognizes the traveling direction of the vehicle based on the voltage value shown in the circuit diagram of FIG. 2 that lights the back lamp BL when the vehicle reverses, which is read at a vehicle signal input port (not shown). The moving direction recognition means 19 has the conversion information storage means 21 as described above.
[0057]
In other words, the moving direction recognition means 19 compares the different voltage values read at the vehicle signal input port with the traveling direction that is the traveling condition of the vehicle recognized by the traveling condition recognition means 15, and determines the traveling direction for each different voltage value. The conversion information is generated in association with each other, and the conversion information is stored in the conversion information storage unit 21. Specifically, it is determined and related to whether the traveling direction is forward or backward when high level output and low level output having different voltage values are output. As described above, the conversion information storage means 21 has a table structure in which the traveling direction associated with the high-level output and the low-level output is paired and recorded as one record.
[0058]
Then, the moving direction recognition means 19 compares the voltage value read at the vehicle signal input port with the conversion information stored in the conversion information storage means 21, and reads the traveling direction associated with the voltage value read by the conversion information. Thus, the traveling direction is recognized from the voltage value read at the vehicle signal input port.
[0059]
The display control means 20 determines whether or not the traveling direction of the vehicle recognized by the moving direction recognition means 19 is the same as the traveling direction of the image data with respect to the vehicle, that is, the rear imaged by the back camera 10. When recognizing that the traveling direction of the vehicle is the reverse direction, the control unit controls the display unit 8 to display the acquired image data. When the display control means 20 does not control to display the image data on the display unit 8, as described above, the display control unit 20 displays the guidance by the guidance notification unit 18 on the display unit 8 or displays a TV image. Normal control such as. Further, the display control unit 20 displays the image data acquired at the image data input port on the display unit 8 by recognizing a setting input for displaying an image captured by the back camera 10 by an input operation of the operation unit 7. Let
[0060]
[Operation of navigation device]
Next, the operation of the navigation device 1 will be described with reference to the flowchart shown in FIG. FIG. 4 is a flowchart showing the switching operation to the image of the back camera on the display unit in the navigation device.
[0061]
First, the navigation device 1 is disposed in the vehicle. At the time of this arrangement, the vehicle signal input port of the system control unit 11 is connected to a series circuit for turning on the back lamp BL shown in FIG. 2 which is read as a vehicle signal, and the voltage value fluctuates every time the back lamp is turned on / off. Can be read. In this connection work, it is not necessary to recognize the circuit configuration of the series circuit to which the vehicle signal input port of the system control unit 11 is connected.
[0062]
The navigation device 1 that is provided with the navigation device 1 and is activated by being supplied with electric power from the battery BT is in an initial state. In this initial state, the user sets and inputs the minimum necessary items for appropriately operating the navigation device 1 by the input operation of the operation unit 7. Then, the user operates the navigation device 1 by an appropriate input operation from the operation unit 7, for example, displays map information on the display unit 8. The user drives the vehicle while the navigation device 1 is operating.
[0063]
In the navigation device 1 in the initial state, for example, an operation such as setting a destination and searching for a route that is a travel route, or guiding the travel of the vehicle based on the travel situation of the vehicle traveling on the travel route, Alternatively, display switching control for displaying the image of the back camera on the display unit 8 according to the traveling direction is not performed.
[0064]
As the vehicle travels, the navigation device 1 in the initial state performs initial travel learning so that the system control unit 11 can execute appropriate navigation (step S1). In this initial driving learning, the driving situation recognition means 15 recognizes the driving situation of the vehicle based on the data output from each of the sensor units 3 to 5, and obtains an appropriate driving situation such as the current position and driving distance of the vehicle. For example, data from each of the sensor units 3 to 5 is corrected. The traveling direction that is the traveling state recognized by the traveling state recognizing means 15 is recognized based on, for example, data output from the azimuth angle sensor unit 4 or the Doppler effect of navigation radio waves received by the GPS receiver unit 2. Then, by traveling a certain distance, the traveling state recognition means 15 can recognize an appropriate traveling state by learning, and can execute an appropriate navigation.
[0065]
Further, in the initial running learning in step S1, the system control unit 11 learns the voltage value of the series circuit for turning on the back lamp BL that is a vehicle signal output from the vehicle acquired at the vehicle signal input port. To do.
[0066]
That is, the system control unit 11 first reads a voltage value from a series circuit that turns on the back lamp BL. Further, the system control unit 11 associates the high-level output or low-level output, which is a voltage value as a read vehicle signal, with the traveling direction recognized by the traveling condition recognition unit 15 by the moving direction recognition unit 19. To do. Specifically, for example, a traveling direction when reading a high level output or a low level output is recognized, and conversion information is generated by associating the recognized traveling direction with the high level output. Similarly, the conversion information is acquired when the vehicle signal is switched to the low level output. These pieces of conversion information are stored in the conversion information storage unit 21 as appropriate.
[0067]
Then, the system control unit 11 appropriately repeats the generation operation of the conversion information, compares the acquired conversion information, and determines the relationship between the high level output and the low level output and the traveling direction. This determination is made based on the probability of the traveling direction at the time of high level output and low level output, for example. And the moving direction recognition means 19 of the system control part 11 is memorize | stored in the conversion information storage means 21 as regular conversion information, and complete | finishes the learning which judges a running direction.
[0068]
In the state where the initial travel learning is completed, the system control unit 11 appropriately acquires the voltage value of the series circuit for lighting the back lamp BL, which is a vehicle signal (step S2). Then, after acquiring the vehicle signal in step S2, the system control unit 11 determines the traveling direction of the vehicle by the movement direction recognition means 19, that is, determines whether or not the vehicle signal is the back position (step S3). In the determination of the traveling direction in step S3, the movement direction recognition means 19 compares the acquired vehicle signal with the determined conversion information stored in the conversion information storage means 21 at the time of initial traveling learning. And by this comparison, the movement direction recognition means 19 reads the traveling direction associated with the vehicle signal of the same conversion information as the vehicle signal acquired at the vehicle signal input port, and recognizes the traveling direction of the vehicle.
[0069]
In step S3, when the system control unit 11 determines that the traveling direction recognized by the movement direction recognition unit 19 is not reverse, the system control unit 11 indicates that the traveling is not the same direction as the situation behind the vehicle imaged by the back camera 10. to decide. Then, the system control unit 11 does not perform the control for causing the display control unit 20 to display the image data on the display unit 8, but performs a normal display such as a display for guiding the movement of the vehicle or a normal TV image. Control to display the display screen is performed (step S4).
[0070]
In step S3, when the system control unit 11 determines that the traveling direction recognized by the movement direction recognition unit 19 is reverse, the display control unit 20 uses the same situation as that of the rear of the vehicle imaged by the back camera 10. It is determined that the direction is the direction, and control is performed to display the image data acquired at the image input port on the display unit 8 (step S5), and the process proceeds to step S2. Thus, by returning to step S2 and recognizing the traveling direction again, a configuration in which image data is displayed only when the vehicle signal is in the back position where the vehicle moves backward is obtained.
[0071]
Thus, in the above-described embodiment, the travel direction of the vehicle recognized by the travel direction recognition means 19 based on the travel direction recognized by the travel status recognition means 15 from the vehicle signal acquired at the vehicle signal input port is When the display control unit 20 determines that the vehicle is captured by the camera 10 and acquired from the image input port in the backward direction in the same direction as the image data in the rearward direction, the image data acquired by the display control unit 20 is displayed. Control to be displayed on the unit 8 is performed. For this reason, based on the traveling direction of the traveling state of the vehicle recognized by the traveling state recognizing means 15, it is possible to automatically determine the moving direction which is the state of the vehicle signal output from the vehicle and different in the traveling direction. Therefore, it is unnecessary to recognize in advance the moving direction of the vehicle signal that differs in the traveling direction, for example, to recognize the position to read the voltage value of the series circuit that lights the back lamp BL as the vehicle signal, and the image data can be moved backward without malfunction. Appropriate display switching that is displayed only at times can be easily obtained.
[0072]
In the configuration in which the display is simply switched based on the travel direction recognized by the travel status recognition means 15, the travel direction can be recognized for the first time by traveling the vehicle, so that image data can be obtained when the vehicle travels backward. There is a possibility that the situation behind the vehicle cannot be recognized. On the other hand, in the above-described embodiment, the driving direction is determined using a vehicle signal that is a different signal by switching the shift position of the shift lever to the back position, so that, for example, the back position is determined when the vehicle is stopped. It is possible to check the situation behind the vehicle before moving backward with the action of switching to.
[0073]
Further, as the vehicle signal, the voltage value of the series circuit for lighting the back lamp BL for illuminating the rear when the vehicle is moving backward in the same direction as the vehicle rear imaged by the back camera 10 is read. It can be read as a rectangular wave, and the calculation of comparing the read voltage value with the information on the traveling direction is facilitated, no special configuration is required, and the configuration can be simplified and efficiently processed. Furthermore, complicated operations such as wiring so that the wiring does not get in the way when the shift lever is operated are unnecessary, and the vehicle signal can be read easily and the installation work on the vehicle can be facilitated.
[0074]
Further, the traveling direction recognition means 19 compares the traveling direction of the vehicle in the traveling condition information recognized by the traveling condition recognition means 15 with the voltage value of the rectangular wave that is the vehicle signal acquired at the vehicle signal input port, For each of the high level output and low level output of the voltage value, the traveling direction of the vehicle is associated and stored as conversion information in the conversion information storage means 21 to learn the voltage value, and the voltage value acquired at the vehicle input signal port is learned. The travel direction of the vehicle is recognized by collating with the conversion information obtained and stored. For this reason, it is not necessary to recognize in advance the relationship between the vehicle signal output from the vehicle and the traveling direction of the vehicle, and a configuration for automatically recognizing the relationship between the vehicle signal and the traveling direction can be easily obtained.
[0075]
And since the driving | running | working condition recognition means 15 used in order to guide the driving | running | working of the vehicle of the navigation apparatus 1 is utilized for learning of a vehicle signal, the structure of the driving | running | working condition recognition means 15 can be shared, and it learns separately. Therefore, a special configuration is not required, and the configuration can be simplified.
[0076]
In addition, since the rear camera 10 in the backward direction, which is particularly difficult to check, is captured by the back camera 10 and acquired as image data, and the image data is switched and displayed when the vehicle reverses, guidance for navigation is normally used. It is possible to easily obtain a configuration in which normal display such as display of TV and display of TV images is performed and switching is performed appropriately only when necessary.
[0077]
Furthermore, the image data can be displayed by manual operation, so that the rear of the vehicle can be confirmed even when the shift lever is in a parked state where the shift lever is parked or in a neutral state where the vehicle is not running. , Can improve convenience.
[0078]
[Modification of Embodiment]
In addition, this invention is not limited to each embodiment mentioned above, The deformation | transformation shown below is included in the range which can achieve the objective of this invention.
[0079]
In other words, the image switching control in the navigation device 1 that is mounted on a vehicle and supports the traveling of the vehicle has been described. However, the moving body is not limited to the vehicle, and any moving body can be applied. Not only the navigation device 1 to support, but simply display an image that is not related to navigation such as a TV image in normal times, and appropriately switch the display when moving in the direction in which the moving body captures the image data in that direction. Any configuration that is displayed on the display unit 8 can be applied.
[0080]
The configuration for displaying the image data captured by the back camera 10 has been described. However, the configuration for acquiring the image data is not limited to the back camera 10 and can be any imaging device. It is also possible to adopt a configuration in which the navigation device 1 acquires an image captured by connecting a back camera 10 prepared separately to the navigation device 1 as image data.
[0081]
Further, the system control unit 11 is configured as a server device, for example, and transmits / receives image data, data of each of the sensor units 3 to 5, a vehicle signal, and the like by communication with a terminal device mounted on the vehicle, and the system control unit of the server device 11 is configured to recognize the driving situation, calculate vehicle signals, determine the driving direction, etc., and transmit to the terminal device to control the display of the display unit 8 connected to the terminal device as appropriate. The configuration of the navigation device 1 can also be applied.
[0082]
Furthermore, although it demonstrated with the navigation apparatus 1 mounted in the vehicle, it can also be set as the structure which controls the display of a computer, for example, comprising the operation | movement mentioned above as a program, reading this program, calculating it with a computer suitably, etc. It can also be used as a recording medium on which a program is recorded.
[0083]
Moreover, although the voltage value of the series circuit which lights the back lamp BL was acquired and demonstrated as a vehicle signal, any signal which is output from a vehicle and outputs a different signal depending on the traveling direction can be used. Moreover, although the vehicle signal was read as a voltage value which is a rectangular wave signal, any signal can be used.
[0084]
The configuration for acquiring the rear image as image data has been described. For example, the situation on the side opposite to the driver's seat that is relatively difficult to confirm when the vehicle is running, the situation immediately before the vehicle, etc. Can be acquired as image data. In this case, it is good to switch when it becomes the same direction, such as when moving in that direction, for example, turning.
[0085]
Furthermore, the map information storage means can be applied not only to the configuration of a drive that reads a non-writable recording medium, but also to a configuration using a writable recording medium. It is also possible to store the information in a terminal device and transmit it to a terminal device for display, or to notify the guidance.
[0086]
Moreover, the structure of the driving | running | working condition recognition means 15 is not restricted to the structure which recognizes the driving | running state of a vehicle based on the signal from the sensor parts 3-5, Any structure which can recognize the moving condition of a moving body can be used.
[0087]
In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.
[0088]
【The invention's effect】
According to the present invention, the moving direction of the moving body is determined based on the moving state information regarding the moving state of the moving body based on the moving state information regarding the moving state of the moving body from the signals output from the moving body and different from the moving direction of the moving body. By recognizing that the surrounding direction of the image data is substantially the same as the predetermined direction with respect to the moving body, the image data is displayed on the display means, and is output from the moving body based on the moving state information of the moving body. It is possible to automatically determine the direction of movement of different signals depending on the direction of movement, eliminating the need to recognize in advance the direction of movement of different signals, and easily obtaining a configuration for properly displaying image data without malfunction. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a schematic configuration of a navigation device according to an embodiment of the present invention.
FIG. 2 is a circuit diagram showing a circuit configuration of a series circuit for each type of vehicle for turning on a vehicle back lamp in the embodiment.
FIG. 3 is a timing chart showing a relationship between a shift position and a voltage value at a reading position on a series circuit in the embodiment.
FIG. 4 is a flowchart showing an operation of switching to an image of a back camera on the display unit in the embodiment.
[Explanation of symbols]
1 Navigation device
6 Map information storage unit as map information storage means
8 Display unit as display means
10 Back camera as imaging means
11 System control unit as calculation means as image output control device
15 Travel status recognition means as travel status information acquisition means
18 Guide notification means
19 Movement direction recognition means
20 Display control means
21 Conversion information storage means

Claims (7)

The movement status information relating to the movement status of the vehicle used for guiding the movement of the vehicle in which a circuit for applying a voltage to the back lamp during reverse travel is provided based on the map information is acquired, and the acquired movement status Movement status information acquisition means for generating movement direction information related to the movement direction of the vehicle based on the information;
A mobile signal acquisition means that reading the different voltage value with respect to the moving direction of the vehicle is output from the circuit of the vehicle,
An image data acquisition means for acquiring the conditions surrounding the backward direction of the vehicle as image data to the vehicle,
The voltage value read by the moving body signal acquisition means and the movement direction information generated by the movement status information acquisition means are compared, and the movement direction information of the vehicle is associated with each different voltage value as conversion information. comprising a conversion information storage means for storing, recognizing movement direction recognizing means a moving direction of the vehicle voltage value against the conversion information stored in said conversion information storage means is read by the moving body signal acquisition unit,
The image data is displayed by recognizing that the moving direction of the vehicle recognized by the moving direction recognizing unit is the same as the reverse direction of the image data acquired by the image data acquiring unit with respect to the vehicle . Display control means to be displayed on,
An image output control device comprising: Image output control for controlling the display means to display image data relating to the situation in the backward direction of the vehicle for a vehicle in which a circuit for applying a voltage to the back lamp is arranged during reverse travel A method,
The movement status information related to the movement status of the vehicle used for guiding the movement of the vehicle based on map information is acquired, and the movement direction information related to the movement direction of the vehicle is generated based on the acquired movement status information. together, reading a different voltage value of a high level and a low level with respect to the moving direction of the vehicle is output from the circuit of the vehicle,
The read voltage value is compared with the generated movement direction information, and the conversion information is generated by associating the movement direction information of the vehicle for each different voltage value,
Read the voltage value output from the circuit and collate with the generated conversion information to recognize the moving direction of the vehicle ,
By recognizing that the direction of movement of the vehicle in the same direction and the backward direction with respect to the vehicle of the image data, the image output control method, characterized in that for displaying the image data on the display means. An image output control program for causing an arithmetic means to execute the image output control method according to claim 2 . 4. A recording medium on which an image output control program according to claim 3 is recorded so as to be readable by an arithmetic means. An image output control device according to claim 1 ;
Guidance notifying means for notifying the vehicle movement guidance corresponding to the vehicle movement status based on the movement status information acquired by the image output control device;
A navigation device characterized by comprising: The navigation device according to claim 5 , wherein
A navigation device comprising: display means for displaying image data acquired by the image output control device and for notifying the vehicle movement guidance by the guidance notification means. The navigation device according to claim 5 or 6 ,
A navigation apparatus comprising imaging means for imaging a situation in a reverse direction with respect to a vehicle and outputting image data.

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