JPH04316995A - Image guidance device - Google Patents

Abstract

PURPOSE:To obtain a guidance device for a missile, which is hardly detected by an enemy. CONSTITUTION:A missile, having an inertia navigation device 7 and an auto- pilot device 3, is provided with a flight route setting device 5, receiving signals from a fore image pickup device 1 and a lower image pickup device 4, which are loaded on the same missile, detecting an intermediate passing objective point, set and inputted previously, setting a flight route from a present place and transmitting it to an auto-pilot device 3, and a picture-terrain counter matching device 6, receiving the signals from the flight route setting device and a lower image pickup device 4, operating the deviation of the lower intermediate passing objective point and transmitting it to the auto-pilot device 3. According to this method, the missile is guided to a target with an excellent accuracy without projecting any radio wave by itself.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image guiding device used for guiding flying objects and the like.

0002

[Prior Art] A conventional terrain verification guidance device calculates the altitude of a flight point from a radio altimeter and an atmospheric altimeter installed at the bottom of a flying object, and calculates the altitude of a flight point using map data stored in advance in the flying object. Verify and guide. The terrain is memorized and expressed in terms of altitude above sea level, correcting for errors in the inertial navigation system.

0003

[Problems to be Solved by the Invention] The flying object using the above-mentioned conventional terrain checking device uses a radio altimeter to obtain altitude data, and therefore emits radio waves to the outside of the aircraft.
It is not completely passive induction.

[0004]Therefore, there was a possibility that the other party would detect it.

[0005]

[Means for Solving the Problems] The present invention takes the following means to solve the above problems.

That is, in a flying object having an inertial navigation device and an autopilot device as an image guidance device, a forward imaging device and a downward imaging device mounted on the flying object and signals from the forward imaging device are received, and a flight path setting device that detects the intermediate passing target point that has been set and input, sets a flight path from the current location, and sends it to the autopilot device; receives signals from the flight path setting device and the lower imaging device; An image topography matching device is provided that calculates the deviation of the lower intermediate passing target point and sends the calculated deviation to the autopilot device.

[0007]

[Operation] Through the above means, the flight path setting device detects a preset passing target point using the image obtained from the forward imaging device for forward monitoring, sets a flight path from the current location, and sends it to the autopilot device. . Further, the image topography matching device calculates the deviation between the current intermediate passing target point and the set flight route based on the image obtained from the downward imaging device for downward monitoring, and sends the calculated deviation to the autopilot device. The autopilot system modifies the signals from the inertial navigation system with these signals and directs the projectile towards the target.

[0008] In this way, it is possible to fly toward the target with high precision without emitting radio waves. Therefore, it becomes difficult to be detected by the other party.

[0009]

[Embodiment] An embodiment of the present invention will be explained with reference to FIG. A forward imaging device 1, a downward imaging device 4, a target detection device 2, a flight path setting device 5, and an image terrain matching device 6 are mounted on a flying object having an inertial navigation device 7 and an autopilot device 3.

The output of the forward imaging device 1 is connected to an autopilot device 3 via a target detection device 2. Further, the output of the forward imaging device 1 is connected to the autopilot device 3 via the flight path setting device 5. Further, the output of the flight path setting device 5 is connected to the autopilot device 3 via an image terrain matching device 6. Further, the output of the lower imaging device 4 is connected to the autopilot device 3 via an image topography matching device 6.

[0011] In the above configuration, the flight route setting device 5 which receives a signal from the forward imaging device 1 sequentially detects preset mid-flight target points from the images and determines the route from the current flight point to the mid-flight target point. Set. This set route is input to the autopilot device 3 to control the route to the intermediate target point. Near the intermediate target point, the lower imaging device 4 is activated to acquire an image near the intermediate target point and input it to the image topography matching device 6. The image terrain matching device 6 calculates the deviation of the intermediate target point set by the flight path setting device 5 from this image, and inputs a flight path correction signal to the autopilot device 3. In the autopilot device 3, the signal from the inertial navigation device 7, which constantly sends navigation signals, is corrected several times during the flight using the signal from the image terrain matching device 6, and the flying object is directed toward the target. let

0012

[Effects of the Invention] As explained above, according to the present invention,
Since the flying object does not emit radio waves, it is difficult to be detected by the enemy. Furthermore, precise guidance can be performed by using image data of the front and lower sides for guidance.

[Brief explanation of drawings]

FIG. 1 is a configuration block diagram of an embodiment of the present invention.

[Explanation of symbols]

1. Front imaging device 2 Target detection device 3 Autopilot device 4 Lower imaging device 5 Flight path setting device 6 Image terrain matching device 7 Inertial navigation device

Claims (1)

[Claims] [Claim 1] In a flying object having an inertial navigation device and an autopilot device, a forward imaging device and a downward imaging device mounted on the flying object and a signal from the forward imaging device are received and settings are inputted in advance. A flight path setting device that detects an intermediate passing target point, sets a flight route from the current location, and sends it to the autopilot device; and a flight path setting device that receives signals from the flight path setting device and the lower imaging device, and detects the intermediate passing target point below. An image guidance device comprising: an image topography matching device that calculates point deviations and sends the calculated points to the autopilot device.