JPS6239800B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to the current position of a moving object such as an automobile,
The present invention relates to a driving route display device that displays driving conditions such as a driving trajectory and a traveling direction.

Prior Art Recently, as will be explained in detail later, when driving a car in an unfamiliar area, for example, in order to provide appropriate guidance so that the driver does not deviate from the planned driving course and get lost, Along with this, the distance detector detects the traveling distance according to the vehicle speed, and the direction detector detects the direction of travel and the amount of change thereof, and the current position of the vehicle on two-dimensional coordinates is sequentially calculated from each detected value. The driver can confirm the current location by storing the result in memory and displaying it on a display screen on which a road map is displayed in continuous point information that changes every moment. A driving route display device has been developed that allows the user to travel along the route.

When installing such a driving route display device in a car, from the perspective of ensuring safety while driving, if there is no assistant who can provide guidance while looking at the driving route display screen, the driver will basically only be able to display the driving route when the vehicle is stopped. It is preferable not to display the driving route on the screen so that the driving route can be seen on the display screen but cannot be viewed while driving.

However, with conventional driving route display devices, it is only possible to display the driving route on the screen or erase the displayed content by manually turning the switch on and off, and when providing guidance, the driver It has become complicated to turn on and off the display switch each time the vehicle is stopped or running.

Purpose The present invention was made in consideration of the above points, and
In order to prevent the driver from staring at the display screen while driving, especially from the perspective of driving safety, the display of the driving route is prohibited when driving without any switch operation, and it is automatically displayed only when the car is stopped. The present invention provides a driving route display device capable of displaying a driving route in a timely manner.

Furthermore, in the present invention, in order to effectively utilize the display device when the display of the driving route is prohibited while the vehicle is running, auxiliary information such as the driving speed, engine rotation speed, engine temperature, and remaining fuel can be displayed on the display screen. The present invention provides a driving route display device that enables the following.

Furthermore, the present invention provides a driving route display device having a display selection function for canceling the driving route display prohibition state on the display screen so that other occupants such as an assistant can use the driving route display device even when the vehicle is running. It provides:

Configuration FIG. 1 shows the basic configuration of the driving route display device according to the present invention, which includes a distance detector 1 that generates a pulse signal according to the travel distance of the automobile, and a rate type detector that detects the angular velocity in the yaw direction, for example. A direction detector 2 that outputs a signal proportional to the direction or the amount of change in direction according to the direction of travel of the vehicle, which is composed of a gyroscope, etc.; and a direction detector 2 that outputs a signal proportional to the direction or the amount of change in direction of the vehicle, and the distance detector 1 counts pulse signals from the vehicle to determine the travel distance of the vehicle. At the same time, the traveling direction of the vehicle is determined from the output of the direction detector 2, and the position on the two-dimensional coordinates of the vehicle for each unit traveling distance is calculated according to the detection signals from both the detectors 1 and 2. A signal processing device CPU 3 that performs central control of the entire device and the ever-changing 2 obtained by the signal processing device 3.
A driving trajectory storage device RAM4 that sequentially stores position data on dimensional coordinates and holds it as finite continuous positional information corresponding to the current position of the car, and a driving trajectory storage device RAM4 that stores data of positions on dimensional coordinates and holds it as finite continuous positional information corresponding to the current position of the car, and a driving path of the car according to the output from the signal processing device 3. A display command is sent to the signal processing device 3 and a display device 5 consisting of a CRT display device, a liquid crystal display device, etc., which constantly updates and displays the distance, the traveling trajectory in a certain section to the current position, the current direction of travel, etc.
The display device 5 can change the direction of the travel trajectory displayed on the display device 5, move its display position, display enlarged portions of the travel trajectory, change display format settings such as selection of display scale, and search the travel trajectory as appropriate. It is configured by an operating device 6.

The basic operation of displaying a driving route in the driving route display device configured as described above will be explained below.

First, when the car is running, the operating device 6
Accordingly, the starting point and the display scale of the display device 5 corresponding to the road map used for guidance are appropriately set. Afterwards,
When the car starts running, the distance detector 1 sends one pulse signal for each unit distance traveled to the signal processing device 3, which counts the number of pulses to measure the distance traveled.
The output of the direction detector 2 is also sent to a signal processing device 3, where the direction in which the vehicle is traveling at each moment is determined. The signal processing device 3 calculates the current position (x, y) on the X-Y coordinates every moment according to a preset scaling factor based on the detected changes in the traveling distance and direction of the vehicle as described above. Find it by.

When the signal processing device 3 calculates the position on the two-dimensional coordinates for each unit mileage of the vehicle in accordance with the detection signals from the distance detector 1 and the direction detector 2, as shown in FIG. If the unit traveling distance is l, the current position is (x _o+1 , y _o+1 ), the previous position is (x _o , y _o ), and the current direction is θ, then the current Position (x _o+1 , y _o+1 )
will be calculated.

Next, the results of the sequential calculations are sent to the travel trajectory storage device 4 and stored and held as finite position data, and the stored contents are read out as appropriate and provided to the display device 4. At the same time, a direction signal at the current position is sequentially sent from the signal processing device 3 to the display device 5 for every unit traveling distance l. As shown in FIG. 2, the display device 5 includes a directional display mark M1 of the current position B and a travel trajectory display mark based on vector-based polygonal line approximation from the starting point A to the current position B. M2 will be simulated to follow the driving state of the car. Note that the display mark M1 of the current position B can be determined by using a ROM in which the signal processing device 3 stores in advance mark information such as a large number of triangular shapes and arrow shapes having various directions. Using the address as the address, mark information with appropriate directionality is retrieved and sent to the display device 4, where it is displayed together with the current position. In addition, in order to be able to check the travel route midway through, a search mark M3 can be arbitrarily written on the travel trajectory display mark M2 displayed on the display device 5 based on an operation instruction from the operation device 6. ing. Furthermore, as shown in FIG. 2, the display device 5 displays
According to the signal sent from the signal processing device 3,
For example, display D of the time required to reach current position B
1 (this can be done by incorporating a timer that operates only when driving in the signal processing device 3), a display D2 of the total distance traveled up to that point, or a display of the scale factor set by the operating device 6. Auxiliary indications such as D3 are made as appropriate. Note that the display device 5 has a limit to the traveling trajectory that can be displayed on it, so when the limit is exceeded, a new starting point A' is set using the operating device 6 (at this time, the traveling trajectory storage device 4 stores the (Contents will be cleared) This will allow you to continue driving.

In this way, by comparing the travel trajectory up to the current location displayed on the display device 5 with the road shape on the map, the driver can determine which road the vehicle is traveling on and where the current location is. You will be able to easily check the details. As a map, for example, a road map drawn on a transparent sheet may be set on the screen of the display device 5, or a map playback device or the like may be added to display the road map itself on the screen of the display device 5. It is possible that

The present invention provides such a traveling route display device, in particular, by providing a means for detecting each state of a moving object, such as traveling or stopping, so that the traveling route is displayed on the screen only when a stopped state is detected, in principle, and the traveling route is displayed on the screen only when a stopped state is detected. The feature is that display of the driving route is prohibited upon detection.

FIG. 4 shows an embodiment of the present invention, in which a running/stopping detector 7 is provided to detect the running and stopping states of the automobile depending on the presence or absence of an output signal from the distance detector 1, and The signal is signal processing device 3
When the stop detection signal is given to the signal processing device 3, the signal processing device 3 disables the display of the traveling route on the display device 5, and when the stop detection signal is given to the signal processing device 3, the signal processing device 3 disables the display of the traveling route on the display device 5. The display prohibition state is canceled and the driving route is displayed. Note that this running/stopping detector 7 is designed so that the signal processing device 3 has a function of detecting the running/stopping state of the vehicle depending on the presence or absence of the output of the distance detector 1, even if it is not provided separately. Needless to say, this is a good thing. In the figure,
Components with the same symbols as in FIG. 1 indicate components having the same configuration.

In addition, as shown in the same figure, the present invention is provided with a display selection operation panel 8 that can arbitrarily select the display mode on the display device 5 regardless of whether the vehicle is running or stopped. Even when the display of the driving route is prohibited, it is possible to force the display device 5 to display the driving route by giving a command to the signal processing device 3 to forcibly release the display prohibited state by operating a switch on the operation panel 8. In addition, even when the driving route is displayed while stopped, a command is given to the signal processing device 3 to forcibly prohibit the display of the driving route by operating a switch on the operation panel 8, and the driving route is displayed on the display device 5. It is possible to erase the display.

In the driving route display device according to the present invention configured as described above, the driver cannot see the displayed contents of the driving route unless the driver is stopped, and when the driver is stopped, the display automatically displays the driving route without any operation by the driver. The driving route is displayed on the display screen, ensuring safety while driving the vehicle, and making it possible to display the driving route efficiently. Furthermore, even while the vehicle is traveling, other occupants such as an assistant can view the displayed content of the travel route by operating a switch, making it highly usable.

Further, FIG. 5 shows another embodiment of the present invention, in which a vehicle speed detector 9, an engine rotation detector 10, and a fuel detector 11 are provided, and the outputs of these sensors are provided to the signal processing device 3. When the display of the travel route is prohibited according to the travel detection signal of the travel/stop detector 7, the signal processing device 3 detects the
11 outputs are read respectively, and based on the read data, a meter display D of the current vehicle running speed is displayed on the display device 5 as shown in FIG. 6, for example.
4. The digital display D5 of the engine speed and the meter display D6 of the remaining fuel are automatically displayed. In addition to displaying the traveling speed, engine speed, and remaining fuel on the screen of the display device 5 when such display of the traveling route is prohibited, various other monitor detectors such as an engine temperature detector may be provided. It goes without saying that various status displays or warnings can be displayed on the screen of the display device 5 through the signal processing device 3 in accordance with the detected output. Further, these displays can be arbitrarily set in the form of a meter display or a digital display.

In addition, in the present invention, as shown in FIG. 5, the display mode on the display device 5 is appropriately switched regardless of whether the vehicle is running or stopped, such as the traveling route, traveling speed, engine speed, remaining fuel, etc. A display selection operation panel 12 is provided which can selectively specify the display items to display the required display as desired, and the switch operation using the operation panel 12 is provided even when display of the driving route is prohibited during driving. Therefore, it is possible to give a command to the signal processing device 3 to forcibly cancel the display inhibited state and cause the display device 5 to display the driving route, and also to selectively display auxiliary information such as the driving speed and engine rotation speed. I am trying to make it possible to do so.

With the driving route display device according to the present invention configured as described above, the display device 5 can be used particularly effectively, and the driving route and various auxiliary information can be displayed efficiently.

Effects As described above, the traveling route display device according to the present invention detects the moving object based on the output of the distance detector that detects the traveling distance of the moving object and the output of the direction detector that detects the direction accompanying the traveling. A signal processing device calculates the position on two-dimensional coordinates for each unit traveling distance, and displays the continuous traveling trajectory of the moving object on the screen while sequentially storing the data of the determined position that changes every moment. In what makes
This system is equipped with means for detecting whether a moving object is running or stopped based on the presence or absence of an output signal from a distance detector, and when the running state is detected, the signal processing device prohibits the display of the running route. This has an excellent advantage in that it can effectively prevent the driver from continuously looking at the driving route display.

Further, in the driving route display device according to the present invention, a detector for detecting various types of auxiliary information of the moving body is provided as needed, and the auxiliary information is displayed by the signal processing device when the driving state is detected. This system is designed to give commands to switch the display mode or select display items to the signal processing device regardless of whether each state of running or stopping is detected, and it is possible to create an efficient driving route as well as other auxiliary information and easy to use. It has the excellent advantage of being able to perform display.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the basic configuration of a driving route display device according to the present invention, FIG. 2 is a diagram showing an example of a display form in the driving route display device, and FIG. 3 is an example of a driving route in vector display. diagram showing,
Fig. 4 is a block diagram showing one embodiment of the present invention, Fig. 5 is a block diagram showing another embodiment of the invention, and Fig. 6 is a diagram showing an example of displaying auxiliary information in the same embodiment. be. 1...Distance detector, 2...Direction detector, 3...Signal processing device, 4...Travel trajectory storage device, 5...Display device,
6... Operating device, 7... Running/stopping detector, 8... Display selection operation panel, 9, 10, 11... Various auxiliary information detectors.

Claims (1)

[Claims] 1. A plurality of detectors that detect various types of information about a moving object, and a position on two-dimensional coordinates for each unit traveling distance of the moving object based on the traveling distance detection output and the direction detection output of the moving object. A signal processing device 3 that performs calculations, a storage device 4 that sequentially stores the data of the determined and ever-changing position, and a continuous traveling trajectory of the moving object is displayed on the screen based on the stored data. The display device 5 detects the traveling state of the moving object by outputting a traveling distance detection signal from the signal processing device 3, and prohibits display of the traveling trajectory on the display device 5. A driving route display device characterized by: 2. The description of item 1 above, wherein the signal processing device 3 is configured to display various information such as the traveling speed and engine rotation speed on the screen of the display device 5 when detecting the traveling state of the moving body. A driving route display device. 3. The travel route display device according to item 1 above, wherein the signal processing device 3 is configured to forcibly cancel the travel trajectory display prohibition state in response to an external operation command. 4 The signal processing device 3 is configured to forcibly cancel the display prohibition state of the travel trajectory in response to an external operation command, and also to forcibly cancel the travel trajectory display prohibition state in response to an external operation command when the travel trajectory display prohibition state is forcibly canceled. The travel route display device according to item 2, characterized in that the travel route or various information is selectively displayed on the screen of the display device 5 in accordance with the above.