JPH03216517A - Navigation apparatus for vehicle - Google Patents

Abstract

PURPOSE:To simplify the management of a running distance and time using a card by registering a position data into an IC card beforehand to record the time and running distance thereinto automatically when a running is made on a specified route. CONSTITUTION:An IC memory card 8 in which a position data is registered beforehand is inserted into a device and a running is made on a specified route. An arithmetic control section 2 compares a two-dimensional coordinate position measured during the running with the position data registered of the IC card 8 and when a distance attains a fixed value, the registered position is determined to have been reached and the arrival time and the running distance are recorded on the IC card 8. Then, after a specified time, when the distance between the present distance and the data position registered falls outside the fixed value, departure from the registered position is determined and the time and distance are recorded on the card 8. This enables effective utilization of the data recorded in the card 8 for the operational management of a business vehicle.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides information on the current position of a vehicle. The present invention relates to a vehicular navigation device that informs a driver of movement status such as a moving trajectory and direction of movement on a screen or the like.

[Background technology]

In the case of an aircraft or a ship, since there are no objects around them, a means of knowing their position on the map is required. For this reason, navigation devices that allow people to know their location have been developed for a long time.

On the other hand, navigation devices in automobiles are
Until recently, it was almost unthinkable, with exceptions like deserts. However, in the case of cars, when driving in unfamiliar territory or at night when road signs and surrounding scenery cannot be clearly seen, it can become difficult to know exactly where and in what direction you are driving.

Recently, in order to eliminate this inconvenience, various vehicle navigation devices have been developed and put into practical use. Currently in practical use, vehicle navigation devices convert a map into digital information pixel by pixel in raster mode (or vector mode) and store it in a storage medium, and from that storage medium map information of the area to be traveled is extracted. Some vehicles read out and display the travel trajectory on the display screen, and overlay service information such as road guidance on top of it. According to such vehicle navigation devices, it is possible to always drive the vehicle in the correct direction even in geographically unfamiliar areas, and it is also possible to select the optimal route on the screen and instantly know the distance to the destination, etc. It is possible to provide various types of extremely effective information to the driver, such as the ability to

[Problem to be solved by the invention]

However, in conventional vehicle navigation devices, the distance to the destination can be displayed by setting the destination, etc., but in most cases only one final destination can be set, and moreover, the distance is displayed in a straight line. . Therefore, the distance traveled. Unable to manage time, mileage decreased. There has been a long-awaited need for a vehicle navigation device that can easily manage time. Further, in conventional vehicle navigation devices, data is not portable, so even if data is set once, setting operations must be performed each time, which is troublesome.

[Purpose of the invention]

The present invention has been made in view of the problems of the conventional example, and an object thereof is to provide a vehicle navigation device that makes it possible to easily manage travel distance and time.

[Means to solve the problem]

The present invention provides a position detecting means for detecting the moving position of a vehicle that changes every moment and outputting a signal corresponding to the position, and a position on two-dimensional coordinates of the vehicle that changes every moment according to the detection signal from the position detecting means. Calculate. an arithmetic processing control unit that holds the obtained position data and performs overall centralized control; an information storage medium that stores necessary map information, etc. in advance;
A storage medium reproducing means for reading necessary information from the information storage medium, and a display means for displaying the map and the movement position on the same screen based on the detected vehicle position data and map image information. We are prepared.

Further, the arithmetic control section is provided with a calendar clock that outputs data such as month, date, hour, and minute to the arithmetic control section, and an IC memory card is used as an external storage means. Furthermore, predetermined position data is registered in this IC memory card in advance.

Then, the arithmetic control unit compares the position on the two-dimensional coordinates calculated every moment while driving with the position data registered in the IC memory card, and the distance between the current position and the registered data position is kept constant. A first determination function that determines that the registered data position has been reached when the distance is within the distance, and the time of arrival. a first recording function that records the distance traveled on the IC memory card; and a second recording function that determines that the user has departed from the registered data location if the distance between the current location and the registered data location exceeds a certain distance after a predetermined period of time. 2 judgment function and this departure time. The vehicle also has a second recording function for recording the mileage on the IC memory card.

This aims to achieve the above-mentioned purpose.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

The embodiment shown in FIG. 1 is a position detecting means 1 that detects the moving position of a vehicle that changes every moment and outputs a signal corresponding to the position.
Then, in response to the detection signal from the position detection means 1, the position on the two-dimensional coordinates of the vehicle for each unit mileage is calculated, and the data of the position on the two-dimensional coordinates, which changes every moment, is stored in the internal memory. The navigation control unit 2, which serves as an arithmetic processing control unit that performs centralized control of the entire device, and the navigation control unit 2, which is a calculation processing control unit that performs centralized control of the entire device, store it sequentially in the finite continuous position information corresponding to the current position of the vehicle, ), a storage medium reproducing means 4 for reading out necessary map information, etc. from the information storage medium 3; A map image is displayed on the screen according to the map information, and the current position and current direction of travel of the vehicle are displayed based on the position data stored in the navigation control unit 2. C as a display means to constantly update the movement trajectory etc. on the same screen
RT5 and a command to selectively display map information to the navigation control unit 2. Shifting the display position of the map and movement trajectory displayed on the CRT 5, enlarging a portion of the map and movement trajectory, changing display format settings such as selecting the display scale, searching for the map and movement trajectory, etc., as appropriate. It is equipped with an operating means 6 consisting of a key switch, a touch panel, etc. Further, the navigation control unit 2 is provided with a calendar clock 7 that outputs the month, day, hour, and minutes to the navigation control unit 2. An IC memory card 8 is used as an external storage means.

To explain this in more detail, the position detecting means 1 is actually a photoelectric type, electromagnetic type, etc. sensor that outputs a pulse signal in proportion to the number of tire rotations, and generates a signal corresponding to the distance traveled by the vehicle. The vehicle is configured to include a distance detector (not shown), such as a geomagnetic compass, and a direction detector (not shown), which detects the absolute orientation of a geomagnetic compass and outputs a signal corresponding to the traveling direction of the moving object.

Further, as the information storage medium 3, a CD-ROM, which is a non-volatile memory, is used, which has characteristics such as short access time and large storage capacity.

The information storage medium 3 stores map information and the like as usual.

In the IC memory card 8, position data corresponding to points A, B, C, D, etc. on the map as shown in FIG. It has been registered in advance along with B (OΔ Botanical Garden), and the third
Arrival time, departure time, and mileage are recorded (stamp) as shown in the IC memory card data format in the figure.
It is now possible to do so. The insertion slot for this IC memory card 8 is located in the instrument panel 30 at the front of the vehicle, as shown in FIG.
It is located at the bottom. In FIG. 4, reference numeral 5 indicates the above-mentioned CRT, and reference numeral 6 indicates an operating means. Further, the navigation control section 2, information storage medium 3, storage medium reproducing means 4, etc. are built into a device main body (not shown), and this device main body is housed on the back side of the operating stage 6 in FIG.

Next, the basic operation of the above embodiment will be explained.

First, when the vehicle is traveling, when the driver selects a map in the area to be traveled by specifying a map number using the operation step 6, the navigation control unit 2 uses the storage medium reproducing means in accordance with the map selection input. 4, the map information in a predetermined memory block is read out from the information storage medium 3, and the read map information is sent to the CRT 5 to display a map of the planned travel area on the screen. At this time, the navigation control unit 2 stores the map information read from the information storage medium 3 in an internal RAM (not shown), and constantly reads the map information from the RAM.
By supplying the information to RT5, a predetermined map is continuously displayed on the screen.

Next, a current position display mark indicating the current position and the direction of travel is displayed on the screen of the CRT 5 by key input from the operating means 6, and then the current position display mark is displayed on the display map by operating the switch at the operation stage 6. Shift it to the point position and initialize the display mark.

Thereafter, when the vehicle starts running, a distance detector (not shown) constituting the position detecting means 1 sends one pulse signal to the navigation control unit 2 for each unit distance traveled.
Then, by counting the number of pulses, the traveling distance is measured, and the output of a direction detector (not shown) constituting the position detecting means 1 is also sent to the navigation control section 2, where the traveling direction of the vehicle at every moment is sent to the navigation control section 2. is determined. The navigation control unit 2 determines the current position (x, y) on the X-Y coordinates according to the preset map scale based on the vehicle travel distance and change in direction detected as described above. is computed moment by moment, and the computed results are sequentially sent to the CRT 5 and stored in the internal memory. Here, the stored contents are constantly read out and continuously sent to the CRT 5. At the same time, a direction signal at the current position is sequentially sent from the navigation control unit 2 to the CRT 5. In this way, the CRT
5, a display mark indicating the vehicle's current position and a movement trajectory display mark from the starting point to the current position are displayed in a simulated manner on the travel schedule map displayed on the screen, following the vehicle's movement state. It is now possible to do so.

Above, we have explained the basic operation which is almost the same as usual, but next,
The control operation of the navigation control unit 2 when recording a trip using the IC memory card 8, which is unique to the present invention, will be explained with reference to the flowchart shown in FIG.

Here, this control program is stored in the ROM of the navigation control section 2.

First, when the driver performs the initial settings in the same manner as described above when the vehicle is running, the CPU (not shown) of the navigation control unit 2 determines whether or not the IC memory card 8 is inserted into the device main body (step SIOI). IC
If the memory card 8 is not inserted, there is no need to record a driving record, so the control operation related to the driving record is ended and only the normal control operation as described above is performed. On the other hand, if the IC memory card 8 is inserted, check whether this is correct or not. That is, it is determined whether the IC memory card is for driving record (S102).

If the IC memory card is not a driving record, the driving record cannot be recorded, so the CPU ends the control operation related to the driving record and performs only the normal control operation as described above. On the other hand, if it is an IC memory card for driving records, it is determined whether position data is registered (S103).

If the position data is not registered, the driving record cannot be recorded, so as before, the control operation related to the driving record is ended and only the normal control operation is performed. On the other hand, if the position data is registered in the IC memory card 8, the current position of the vehicle calculated from time to time as described above is compared with the position data registered in the IC memory card 8, It is determined whether the distance between the current position and the registered data position is within a certain distance (S104). Since the distance is obviously outside the fixed distance immediately after the start of travel, the process proceeds to step S111, and it is determined whether all the registered position data have been checked.

In this case, since checking of all the data has not been completed, the process returns to step S104, and from then on, S104→S
Repeat the operation from 111 to S104, and after a certain period of time has passed,
If the distance between the current position and any of the registered data positions is within a certain distance in step S104 (see Fig. 6),
It is determined that the registered data position (point A) has been reached (the first
(determination function), it is determined whether this arrival time has not been registered (3105). In this case, if the IC memory card 8 has never been used, the arrival time is naturally not registered, so the CPU records the arrival time in a predetermined position of the IC memory card 8 based on the output of the calendar clock 7. (S106), and then record the distance traveled based on the calculated current position (S107) [first
recording function].

Next, the CPU determines whether the distance between the current position and the registered data position is outside a certain distance (310B), and if it is outside the certain distance, it is determined that the distance has departed from the registered data position. (Second judgment function) Based on the output of the calendar clock, the time is recorded as the departure time (Sl09), and the mileage at the time of departure is recorded (S109).
110) [Second recording function].

Next, the CPU proceeds to step Sill and determines whether or not all of the registered position data has been changed. Then, the operations from steps S104 to S111 described above are repeated until checking of all registered position data is completed.

After checking all the registered position data in this way, the CPU ends the control operation related to the driving record.

As a result, in the IC memory card 8, the departure and arrival times of the pre-registered positions and the travel distance from the travel start position (the insertion position of the IC memory card 8) remain as records.

According to the embodiment described above, simply by inserting the IC memory card 8 with location data registered in advance into the main body of the device and driving the vehicle along a predetermined route, the vehicle will automatically depart from and arrive at each registered location. The time and distance traveled remain as records in the IC memory card 8. Therefore, the data recorded in this IC memory card 8 can be effectively used, for example, as simple operation management data for commercial vehicles, and can also be used as preview data for drives and trips. Furthermore, the data once collected can be used to set navigation destinations, guide tourist routes, etc. Furthermore, since an IC memory card is used, it is possible to easily input data and process recorded data using a personal computer or the like. In addition, the registered location data does not necessarily have to be entered in the order of the route, so it is easy to input, and the driving record is automatically recorded, so there is no need to perform any operations while driving. be.

〔Effect of the invention〕

Since the present invention is configured and functions as described above, according to this, the first and second judgment functions and the first and second recording functions of the arithmetic and control section enable the IC in which position data is registered in advance to be
By simply inserting a memory card into the device and driving the vehicle along a predetermined route, the departure and arrival times and travel distance for each registered location can be automatically recorded in the IC memory card. The data recorded on the memory card can be effectively used as simple operational management data for commercial vehicles, etc. Since it uses an IC memory card, it can be input using a computer, etc., and furthermore, the data once collected can be Therefore, it is possible to provide a vehicle navigation device with unprecedented versatility that can be used for setting a navigation destination, etc.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is an explanatory diagram showing points on a map corresponding to the position data registered in the IC memory card of FIG. 1, and FIG. 3 is I
FIG. 4 is an explanatory diagram showing the mounting position of each part constituting the navigation device; FIG. 5 is an explanatory diagram showing the data format of the C memory card; FIG. 5 is a diagram showing the control operation of the navigation control unit in FIG. The flowchart in FIG. 6 is an explanatory diagram showing the state of arrival at the registered position. 1...Position detecting means, 2...Navigation control unit as an arithmetic processing control unit, 3...
Information storage medium, 4...Storage medium reproducing means, 5.
. . . CRT as a display means, 7 . . . Calendar clock, 8 . . . IC memory card.

Claims (1)

[Claims] (1) A position detecting means that detects the constantly changing moving position of the vehicle and outputs a signal corresponding to the position, and a position on the two-dimensional coordinates of the vehicle that changes every moment according to the detection signal from the position detecting means. an arithmetic processing control unit that calculates the obtained position data and centrally controls the entire system, an information storage medium that stores necessary map information, etc. in advance, and reads the necessary information from this information storage medium. and display means for displaying the map and the movement position on the same screen based on the detected vehicle position data and map image information, the vehicle navigation device comprising: The arithmetic and control unit is provided with a calendar clock that outputs the month, date, hour, and minute, etc. to the arithmetic and control unit, and an IC memory card is used as an external storage means, predetermined position data is registered in the IC memory card in advance, The arithmetic control unit compares the position on the two-dimensional coordinates that is calculated every moment while driving with the position data registered in the IC memory card, so that the distance between the current position and the registered data position is constant. a first determination function that determines that the registered data position has been reached when the distance is within the distance; a first recording function that records the time of arrival and travel distance on the IC memory card; a second determination function that determines that the user has departed from the registered data position when the distance between the current position and the registered data position is outside a certain distance; and a second determination function that records the departure time and travel distance on the IC memory card. 2. A vehicle navigation device characterized by having a recording function.