KR101292057B1 - Device for measuring angle of seeker receiver - Google Patents

Abstract

PURPOSE: An angle measuring device for a light receiving unit of a searcher is provided to reduce the measuring time by measuring the moving angle of a light receiving unit based on a signal received from a receiving unit. CONSTITUTION: An angle measuring device for a light receiving unit of a searcher comprises a light receiving unit (120), a pointer (130), a receiving unit (140), and a control unit (150). The light receiving unit moves in a first direction when a servo motor (110) is rotated in a first direction and senses the infrared rays. The light receiving unit comprises one or more infrared sensors. The pointer outputs a laser in a direction different from the sensing direction of the light receiving unit. The receiving unit outputs first and second sensing signals depending on the laser. The control unit measures the moving angle of the light receiving unit based on the first and second sensing signals. [Reference numerals] (110) Servo motor; (120) Light receiving unit; (130) Pointer; (140) Receiving unit; (150) Control unit

Description

Device for measuring angle of seeker receiver

The embodiment relates to an angle measuring device of the searcher light receiving unit, and more particularly, to an angle measuring device of the searcher light receiving unit that is easy to measure the moving angle of the light receiving unit which is interlocked with the servomotor.

A missile is a weapon with a device that is guided by a specific method until it reaches a goal. It refers to a flying weapon, such as a javelin, an arrow, an artillery, but currently means an aircraft with its own propulsion. Generally limited to military rockets carrying warheads.

Guided missiles and targets in order to accurately send missiles from the launching point to targets, and guided methods to calculate and deliver guidance commands vary depending on the purpose of use, operational concepts, performance requirements, and the like. These guidance methods are classified into command guidance, homing guidance, navigational guidance, and terminal guidance.

If you track the target yourself through a seeker, you can increase the accuracy of the missile as the missile responds quickly to the movement of the target. Therefore, the end-induction method is widely used as a derivation method today.

The terminal guidance method detects heat emitted from a stack or exhaust port of a target (eg, a fighter jet or a warship) by using a searcher mounted on a guided missile warhead to guide the guided missile to a target. The terminal induction method uses an infrared detector (IR) seeker (IR), an infrared image detector (IIR, Imaging Infra Red seeker) as a searcher.

However, in order to further increase the accuracy of the target against a variety of backgrounds, the target should be measured and tracked by an image rather than a spot. In the case of tracking a target using an image, the target's unique shape or spectral characteristics are used, and the target can be identified or hit more quickly and conveniently than other methods.

Recently, a servo motor equipped with a sensor light receiver included in an infrared detector or an infrared image detector used as a searcher and a resolver for detecting a rotation angle of the servomotor are included.

However, the resolver has a lot of labor when attaching the servo motor, and there is a problem that it operates after performing calibration after applying power.

An object of the embodiment is to provide an angle measuring device of the searcher light receiving unit that is easy to measure the moving angle of the light receiving unit interlocked with the servomotor.

The angle measuring device of the searcher light receiving unit according to the embodiment may include a light receiving unit that moves in the first direction and detects infrared rays when the servo motor rotates in the first direction, and moves in a second direction different from the first direction and outputs a laser. And a control unit for calculating a moving angle of the light receiving unit based on at least one of the first and second sensing signals and a receiver for outputting first and second sensing signals according to whether the laser is detected.

The angle measuring device of the searcher light receiving unit according to the embodiment uses a pointer that outputs a laser while moving in the opposite direction with the light receiving unit that is interlocked with the servomotor, thereby making it easy to mount the pointer and through a receiving unit that can receive the laser. By calculating the moving angle of the light receiver based on the received sensing signal, the calculation time is shortened.

1 is a control block diagram illustrating a control configuration of an angle measuring device of a searcher light receiver according to an exemplary embodiment.

The following merely illustrates the principles of the invention. Therefore, those skilled in the art will be able to devise various apparatuses which, although not explicitly described or shown herein, embody the principles of the invention and are included in the concept and scope of the invention. It is also to be understood that all conditional terms and examples recited in this specification are, in principle, expressly intended for the purpose of enabling the inventive concept to be understood and are not to be construed as limited to such specifically recited embodiments and conditions do.

It is also to be understood that the detailed description, as well as the principles, aspects and embodiments of the invention, as well as specific embodiments thereof, are intended to cover structural and functional equivalents thereof. It is also to be understood that such equivalents include all elements contemplated to perform the same function irrespective of the currently known equivalents as well as the equivalents to be developed in the future, i.e., the structure.

Thus, for example, it should be understood that the block diagrams herein illustrate exemplary conceptual aspects embodying the principles of the invention. Similarly, all flowcharts, state transition diagrams, pseudo code, and the like are representative of various processes that may be substantially represented on a computer-readable medium and executed by a computer or processor, whether or not the computer or processor is explicitly shown .

The functions of the various elements shown in the figures, including the functional blocks depicted in the processor or similar concept, may be provided by use of dedicated hardware as well as hardware capable of executing software in connection with appropriate software. When provided by a processor, the functions may be provided by a single dedicated processor, a single shared processor, or a plurality of individual processors, some of which may be shared.

Also, the explicit use of terms such as processor, control, or similar concepts should not be interpreted exclusively as hardware capable of running software, and may be used without limitation as a digital signal processor (DSP) (ROM), random access memory (RAM), and non-volatile memory. Other hardware may also be included.

In the claims of the present specification, the elements represented as means for performing the functions described in the detailed description may include, for example, a combination of circuit elements performing the function or any type of software including firmware / And is coupled with appropriate circuitry for executing the software to perform the function. The invention as defined by the claims is equivalent to any means capable of providing such a function as would be understood from this specification, since the functions provided by the various listed means are combined and combined with the manner required by the claims. It should be understood that.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: . In the following description, a detailed description of known technologies related to the present invention will be omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

1 is a control block diagram illustrating a control configuration of an angle measuring device of a searcher light receiver according to an exemplary embodiment.

Referring to FIG. 1, the angle measuring device of the searcher light receiving unit includes a servo motor 110, a light receiving unit 120, a pointer 130, a receiver 140, and a controller 150.

The servo motor 110 is driven to rotate in accordance with at least one of the first and second control signals sc_1 and sc_2 of the controller 150.

That is, the servo motor 110 rotates in a first direction (not shown) when the first control signal sc_1 is input, and rotates in a second direction opposite to the first direction when the second control signal sc_2 is input.

Here, the servo motor 110 is a two-axis rotation motor, in the embodiment described as rotating in the first and second directions, it is not limited thereto.

The light receiver 120 is disposed in the servo motor 110, and when the servo motor 110 rotates in at least one of the first and second directions, the light receiver 120 may move in the first and second directions.

In this case, the light receiver 120 may include at least one infrared sensor (not shown), and may detect infrared rays p from at least one of the first and second directions.

That is, the light receiver 120 detects the infrared ray p emitted from an arbitrary target (target) and transmits it to the controller 150.

In an embodiment, the infrared ray p may be recognized by the controller 150 in the form of at least one of an image and a dot, but is not limited thereto.

The pointer 130 may be disposed on at least one of the light receiving unit 120 and the servomotor 110, and outputs a laser.

That is, when the light receiver 120 moves in the first direction, the pointer 130 moves in the second direction opposite to the first direction and outputs the laser, and the light receiver 120 moves in the second direction. In the case of movement, the laser outputs the laser while moving in the first direction opposite to the second direction.

In an embodiment, the pointer 130 is described as being disposed in the center of the rear of the light receiving unit 120, but is not limited thereto.

That is, the pointer 130 may be disposed on at least one of the light receiving unit 120 and the servomotor 110 so as to have the same moving angle as the moving angle of the light receiving unit 120.

In the embodiment, the pointer 130 is shown as outputting the laser, but may be other signals other than the laser, for example, infrared, etc., without being limited thereto.

The receiver 140 may include a plurality of sensors (not shown) for receiving the laser.

In this case, the plurality of sensors output at least one of the first sensing signal ss_1 when the laser is received and the second sensing signal ss_2 when the laser is not received, to the controller 150.

Here, the first sensing signal ss_1 may have a discrete signal, for example, a value of '1', and the second sensing signal ss_2 may be a discrete signal, for example, different from the first sensing signal ss_1. It may have a value of 0 ', but is not limited thereto.

That is, the receiver 140 outputs the first sensing signal ss_1 corresponding to the distance or time timing at which the pointer 130 is moved, that is, the moving angle, or second sensing in a direction in which the pointer 130 is opposite to the moving direction. The signal ss_2 may be output.

The controller 150 calculates a moving angle of the light receiver 120 and a current rotation angle of the servomotor 110 based on at least one of the first and second sensing signals ss_1 and ss_2 output from the receiver 140. can do.

According to an embodiment, the control unit 150 calculates a moving angle of the light receiving unit 120 and a current rotation angle of the servo motor 110 when the first sensing signal ss_1 is input from the receiving unit 140. 2 may be calculated using the sensing signal ss_2, but the present invention is not limited thereto.

When the first sensing signal ss_1 is input, the controller 150 calculates a moving angle of the pointer 130 in one of the first and second directions based on the time timing of the first sensing signal ss_2.

Thereafter, the controller 150 calculates the moving angle of the light receiving unit 120 based on the calculated moving angle of the pointer 130.

As such, the controller 150 may calculate a current rotation angle of the servo motor 110 for moving the light receiver 120 by calculating a moving angle of the light receiver 120.

Subsequently, the controller 150 transmits at least one of the first and second control signals sc_1 and sc_2 to the servo motor 110 based on the current rotation angle of the servo motor 110 and the servo motor 110. You can control the rotation angle of).

An angle measuring device of the searcher light receiver according to the embodiment has an advantage of quickly and easily calculating the moving angle of the light receiver by using a pointer.

Although the above description has been made with reference to the embodiments, these are only examples and are not intended to limit the present invention, and those of ordinary skill in the art to which the present invention pertains should not be exemplified above without departing from the essential characteristics of the present embodiments. It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

110: servo motor 120: light receiving unit
130: pointer 140: receiving unit
150:

Claims (7)

A light receiving unit which moves in the first direction and detects infrared rays when the servo motor rotates in the first direction;
A pointer that moves in a second direction different from the first direction and outputs a laser;
A receiver configured to output first and second sensing signals according to whether the laser is detected; And
And a control unit configured to calculate a moving angle of the light receiving unit based on at least one of the first and second sensing signals. The method of claim 1,
The light-
An angle measuring device of the detector receiver comprising at least one infrared sensor. The method of claim 1,
The pointer is
An angle measuring device of the searcher receiver unit for outputting the laser in a direction different from the sensing direction of the receiver unit. The method of claim 1,
The receiver may further comprise:
And a plurality of sensors respectively outputting the first and second sensing signals according to whether the laser is detected. The method of claim 4, wherein
Each of the plurality of sensors,
An angle measuring device of the searcher-receiving unit outputs the first sensing signal when the laser is detected, and outputs the second sensing signal when the laser is not detected. The method of claim 1,
The receiver may further comprise:
A plurality of sensors configured to output the first sensing signal when the laser is detected and the second sensing signal when the laser is not detected;
The control unit,
An angle measuring device of the searcher-receiving unit for calculating the moving angle of the light-receiving unit based on the time timing of the first sensing signal when the first and second sensing signals are input. The method according to claim 6,
The control unit,
An angle measuring device of the searcher-receiving unit for controlling the rotation angle of the servo motor by calculating the current rotational angle of the servo motor based on the movement angle of the light-receiving unit.

Images