JP2002162248A - Electronic map display method for airplane and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic map display method for an airplane and a device realizing it automatically performing a display contraction scale in response to various flying tasks or various flying configurations and map display based on item data. SOLUTION: The position, speed and the like of an airplane are judged by an operation processing part 5 supplying each signal from an airframe sensor and various airframe devices through a signal input part 2, the flying task and the flying configuration are judged on the basis of a prescribed control algorithms, and the item data and the contraction display of the map display needed on the map display in response to the flying task or the flying configuration from a table storage part 4 are selected to instruct map image generation to a map image generation part 6. The map image generation part 6 acquires item data, concrete map data in a prescribed flying area, and position information and the like necessary for the map display of the map data from an electronic map database 3, a map image is generated in accordance with the display contraction scale, and it is displayed by an image display part 7 as the electronic map image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for displaying an electronic map which is mounted on an aircraft or a helicopter and displays a flight area at the current position of the aircraft.

[0002]

2. Description of the Related Art Conventionally, when an electronic map display device is used for flight support such as an aircraft or a helicopter, for example, for various flight missions or various flight forms, a large number of types of item data stored in the device are used. Item data determined to be necessary for the support, for example, expressways, railways, stations and other public facilities, rivers, lakes, marshes, mountain ranges, etc. are selected from a selection menu, and map data (specific information) corresponding to the selected item data is selected. (Place name and name).
Further, if necessary, the item data is selected again by the selection menu during the flight, and the map data corresponding to the necessary item data is displayed on the map. On the other hand, in the case of the electronic map display device without the selection menu, only the map data corresponding to the item data determined from the beginning is displayed on the map. Also, regarding the display scale for map display,
A bezel switch or the like is used to manually switch to the above flight mode, for example, instrument navigation or flight around the airfield, so that an optimal display scale can be obtained. By the way, when the electronic map display device has a route setting function, a wide range of map data is automatically displayed on a display scale of 1 / 250,000 or 1 / 1,000,000 when the vehicle is constantly flying on the route. In addition, when the vehicle reaches an area with a radius of several kilometers to several tens of kilometers of the waypoint, detailed map data is automatically displayed on a display scale of 1 / 50,000 or 1 / 100,000. I have.

[0003]

However, item data that is determined to be necessary for a flight mission or flight form is selected from many types of item data, but the flight mission or flight form in one flight is limited. Usually, it is not one mission or one form, so if item data is selected in consideration of several flight missions and flight forms and the map data corresponding to the item data is displayed on the map, Map data will be displayed, making it difficult to read.
Necessary map data cannot be instantly recognized. Further, in an electronic map display device without a selection menu, only map data corresponding to item data determined from the beginning is displayed on a map, so that in a certain flight mission or flight form, a large amount of map data is displayed. The required map data cannot be instantaneously recognized, and the required map data may not be displayed in a certain flight mission or flight form, and effective support cannot be obtained in any case. Further, if the display scale for map display is manually switched, a burden is imposed on a person who performs the switching operation, for example, a pilot, which hinders effective flight duties and execution of a flight form.
Also, when the electronic map display device has a route setting function, the display scale and the map display of the map data are automatically switched as described above. The display scale and map data for map display may be different from those of wireless facilities, and conventional devices do not support such points. In such a case, the switching work must be performed manually. Since it is unavoidable, a burden is imposed on a person who performs the work, for example, a pilot, which hinders effective flight missions and execution of the flight form.

[0004] It is an object of the present invention to provide an electronic map display method for an aircraft in which a map is automatically displayed based on display scales and item data according to various flight missions or various flight forms, and an apparatus for realizing the method. It is in.

[0005]

According to a first aspect of the present invention, there is provided an electronic map display method for an aircraft, which is used for various flight missions by an aircraft or for displaying maps in various flight forms. Item data required for map display corresponding to various flight missions or various flight forms, for example, expressways, railroads, public facilities, rivers, etc., and the display scale of the map display, aircraft aircraft sensors and aircraft various devices Automatically selected based on the supply signal from the selected item data, using the specific map data of the selected item data in a predetermined flight area (for example, the current position of the aircraft and its surrounding area),
This is a method for displaying a map according to the selected display scale. According to this method, a map display corresponding to various flight missions or various flight forms is automatically obtained, so that it is easy to read, necessary map data can be instantly recognized, and effective support in performing the flight mission is provided. can get. by the way,
The above-mentioned map data is, for example, a specific shape and a place name or a name of a feature in the current position of the own aircraft and its surrounding area, and if it is an expressway, it is the Tomei Expressway or the Central Expressway, If it is a railway, it is the Tokaido main line or the Chuo main line.

The electronic map display device for an aircraft according to the second aspect of the present invention is a device used for various flight missions by an aircraft or for displaying a map in various flight forms, and includes a body sensor and signals from the body various devices. Is input, and specific map data corresponding to item data such as rivers, lakes, marshes, roads, and buildings, and positional information necessary for map display of this map data (for example, in the case of two-dimensional display, x, y
An electronic map database storing coordinate values) and the like, a table storage unit storing item data required for map display corresponding to various flight missions or various flight forms by aircraft and a display scale of the map display, While determining the position and speed of the aircraft and the flight mission or flight form based on the supply signal from the signal input unit and the position information acquired from the electronic map database, item data corresponding to the flight mission or flight form from the table storage unit and An arithmetic processing unit for selecting a display scale and instructing the generation of a map image, and a predetermined flight area (for example, the current position of the own aircraft and its surrounding area) of the item data based on the map image generation instruction from the arithmetic processing unit From the electronic map database, and obtain the specific map data and the location information necessary for displaying the map data. It is made and an map image generating unit for generating an electronic map image in order to display the map display in accordance with the scale on the image display unit. In this device, the flight mission or flight type is automatically determined, and a map display corresponding to the flight mission or flight type is automatically obtained. It goes without saying that effective support can be obtained in the execution of such tasks.

According to a third aspect of the present invention, in the electronic map display device for an aircraft, the table storage unit includes a portable storage medium such as a memory card on which item data and a display scale are written, and the portable storage medium. This device is configured with a drive unit that reads out the item data and display scale of the medium. According to this device, the item data and display scale corresponding to the flight mission or flight form can be transported by a computer on the ground before flight. By writing in a storage medium and inserting a portable storage medium in which item data and the like are written into a drive unit when performing a flight mission or a flight form, for example, a map display according to a pilot's own preference can be performed. It is possible to easily and flexibly cope with a difference in data configuration such as item data due to a difference, a flight mission or a flight form.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electronic map display method for an aircraft according to the present invention and an apparatus for realizing the method will be described with reference to FIGS. FIG. 1 is a block diagram showing a configuration of the electronic map display device 1 for an aircraft. The apparatus 1 includes an airframe sensor (not shown) for detecting the current position, own speed, speed direction, flight altitude, and the like of the own device, a landing signal, an ON / OFF signal of a search radar, and search night vision. Device ON / OF
A signal input unit 2 to which signals from various types of equipment (not shown) that emit F signals and armed master arm signals are input.
And an electronic map database 3 in which specific map data corresponding to item data of rivers, ports, roads, buildings, etc., and position coordinate values x, y, etc., required for map display of the map data are stored; Item storage required for map display corresponding to various flight duties or various flight modes by aircraft and display scale of the map display are stored. While determining the position and speed of the aircraft and the flight mission or flight form based on the signals and the position information of the electronic map database 3, the item data and the display scale corresponding to the flight mission or flight form are selected from the table storage unit 4, An arithmetic processing unit 5 for instructing map image generation.

Here, the specific map data of the electronic map database 3 is a specific shape, a place name or a name of a river, a port, a road, a building, etc. in the whole of Japan, and in some cases, in the whole world. Tone River, Shinano River, Yangtze River, etc. in rivers, Tokyo Bay, Persian Bay, etc. in ports, Tomei Expressway, Autobahn, etc. Shapes, place names and names are stored in association with coordinate values x and y. However, it is well known that rivers and the like are stored as so-called vector data approximated by line segments.

Further, based on a map image generation command from the arithmetic processing unit 5, the apparatus 1 provides specific map data in a predetermined flight area of the item data and positional information necessary for displaying the map data on a map. Electronic map database 3
And a map image generating unit 6 for generating an electronic map image for displaying a map display according to the display scale on the image display unit 7. Here, the predetermined flight area is an area displayed as a map on the image display unit 7, and is, for example, the current position of the own aircraft and its surrounding area. Therefore, in this case, the specific map data of the item data is, for example, if the area is the Tokyo metropolitan area of Japan, the river is the Tone River, the port is Tokyo Bay, the road is the Tomei Expressway, etc. The Tokyo Metropolitan Government. The signal line between the arithmetic processing unit 5 and the electronic map database 3 can be used for updating the electronic map database 3 and the like.

The table storage unit 4 includes a memory card (portable storage medium) 4a in which item data and a display scale are written, and a memory card drive unit (drive unit) for reading the item data and the display scale of the memory card 4a. 2b, the memory card 4a has a data structure as shown in FIG. 2 and has item data required for a map display corresponding to a flight mission or a flight form (operation form) and a display scale of the map display. Is written.
That is, in the present embodiment, the data structure in the memory card 4a corresponds to the flight mission or flight form of the battle mission, search mission, around the airfield, instrument flight, and visual flight as shown in FIG. When selecting the item data required for the map display, Table 1, Table 2,.
············································································································································ Table 1 In each of the tables 2,..., Item data related to each other are listed. By the way, in the battle mission, the display scale is set to 1/10000, and the item data is “1.
... ”And“ Altitude data, 2 rivers,... ”In table 2 are selected, and so on.

Next, a method of displaying a map in a flight mission or a flight form by the present apparatus 1 will be described with reference to FIGS. First, for example, before the flight, the pilot writes item data and display scales corresponding to the flight mission or the flight form into the memory card 4a as data having the data structure of FIG. 2 using a ground computer (not shown). Out,
The memory card 4a in which item data and the like are written is inserted into the drive unit 4b when performing a flight mission or flight form, for example, when boarding. Then, when the pilot sets the device 1 to the "auto mode" and flies, a map display corresponding to the flight mode is automatically displayed on the image display unit 7 at a predetermined display scale. However, in the case of a flight mission, in the present embodiment, the armed master arm signal is turned on during a battle mission, and the search radar or search night vision device is turned on during a search mission. Need to be kept.

In the present apparatus 1, signals from the airframe sensor and various airframe various devices are input to the signal input unit 2 and supplied to the arithmetic processing unit 5, where the arithmetic processing unit 5 determines the position and speed of the aircraft. In addition to the determination, the flight mission or the flight form is determined based on the control algorithm of FIG. 3 (hereinafter, it is assumed that the flight mission is a battle mission), and the table storage unit 4 corresponds to the battle mission. The item data required for the displayed map and the display scale of the map display are selected, and the map image generation unit 6 is instructed to generate a map image. Then, the map image generation unit 6, based on a command from the arithmetic processing unit 5, displays the specific data of the item data in a predetermined flight area, for example, the current position of the own aircraft and its surrounding area, and a map display of this map data. Is acquired from the electronic map database 3 and a map image according to the display scale is generated, and is displayed on the image display unit 7 as an electronic map image.

In the control algorithm of FIG. 3 described above, a priority is assigned between the flight mission and the flight mode.
According to this priority, if the armed master arm signal is first turned on, a map suitable for the battle mission is displayed,
If the search radar or the search night vision device is ON when the armed master arm signal is OFF, a map display suitable for the search task is made. And any of these are OFF
At this time, if the landing signal is “Landing” or within X km from the airfield position acquired from the electronic map database 3, a map display suitable for the flight form around the airfield is displayed. If there is an air route within X km of the position information obtained from the map database 3 and the flight is at or above the designated altitude of the air route, a map display suitable for the flight form of the instrument flight is made. The landing signal is “Landing”
If the air route within Xkm is not higher than the designated altitude and the speed is lower than Ukm / h, the map display suitable for the flight form around the airfield will be displayed. A suitable map display is made.

By the way, in the present apparatus 1, if a flight mission is changed during flight and a map display different from the flight mission map set in the "auto mode" is required, the "automatic mode" is displayed. Mode is switched to "manual mode" to select a table 1, a table 2,... In which desired item data is enumerated from the data structure of FIG. Can be displayed. Further, similarly to the related art, the map data corresponding to the item data selected from the selection menu can be displayed as an image.

[0016]

According to the electronic map display method for aircraft of the present invention and the apparatus for realizing the same, the map display based on the display scale and the map data according to various flight missions or various flight forms is automatically performed. It is easy to read, instantly recognizes the necessary map data, and provides effective support in performing flight missions.

[Brief description of the drawings]

FIG. 1 is a block diagram of an aircraft electronic map display device according to an embodiment of the present invention.

FIG. 2 is a structural diagram of data written in a memory card of FIG. 1;

FIG. 3 is a flowchart of a control algorithm of the apparatus of FIG. 1;

[Description of Signs] 1 Electronic map display device for aircraft 2 Signal input unit 3 Electronic map database 4 Table storage unit 4a Memory card (portable storage medium) 4b Memory card drive unit (drive unit) 5 Arithmetic processing unit 6 Map image generation Department

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C032 HC09 HC24 HD01 2F029 AA05 AB01 AC02 AC08 AC09 AD07 5B050 AA00 BA07 BA17 BA20 CA06 EA12 EA19 FA02 5H180 AA26 BB12 FF04 FF38

Claims (3)

[Claims] 1. An electronic map display method used for displaying a map in various flight missions or various flight modes by an aircraft, wherein item data required for a map display corresponding to the various flight missions or various flight modes is provided. The display scale of the map display is automatically selected based on supply signals from the aircraft's fuselage sensors and various types of fuselage devices, and using the selected item data, specific map data in a predetermined flight area. An electronic map display method for an aircraft, comprising displaying a map according to the display scale. 2. An electronic map display device used for map display in various flight missions or various flight modes by an aircraft, comprising: a signal input unit into which signals from a body sensor and a body various devices are input; An electronic map database in which specific map data corresponding to item data such as lakes, roads, buildings, etc. and position information necessary for displaying the map data are stored; and various flight missions or various flight modes by the aircraft. A table storage unit in which the item data required for the map display corresponding to and the display scale of the map display are stored; and a supply signal from the signal input unit and position information obtained from the electronic map database. While judging the position and speed of the aircraft and the flight mission or flight form,
An arithmetic processing unit for selecting the item data and the display scale corresponding to the flight mission or the flight form from the table storage unit and instructing map image generation, and performing the flight based on a map image generation instruction from the arithmetic processing unit. Obtain specific map data in a predetermined flight area of the item data corresponding to the mission or flight form, position information necessary for map display of the map data, and the like from the electronic map database, and follow the display scale. An electronic map display device for an aircraft, comprising: a map image generation unit that generates an electronic map image so that a map display is displayed on an image display unit. 3. The table storage unit includes a portable storage medium in which the item data and the like are written, and a drive unit that reads out the item data and the like in the portable storage medium. 3. The electronic map display device for aircraft according to 2.