A dual target azimuthal sighting measurement system, method

Abstract

The application discloses a dual-target azimuth aiming measurement system, comprising an optical path module, an azimuth information measurement module and an aiming module, wherein the optical path module comprises a first optical path for equating a high-position dual target to a dual equivalent target and a second optical path for realizing optical transmission between a north reference and the dual equivalent target; the azimuth information measurement module is used for providing north azimuth information to the aiming module in real time after initial alignment of the north azimuth; and the aiming module is used for aiming based on a preset aiming procedure according to the north azimuth information of the azimuth information measurement module, so as to obtain the north azimuth information of the high-position dual target. The application replaces a serial working mode of a conventional single-target aiming mode of searching north first and aiming later, solves the problem that the north searching measurement time influences aiming rapidity, realizes rapid and high-precision measurement of dual-target azimuths with large height difference, and has the capability of long-term duty and rapid and automatic completion of target azimuth measurement.

Description

Technical Field

[0001] This invention relates to the field of aerospace. More specifically, it relates to a dual-target azimuth aiming and measurement system and method. Background Technology

[0002] Aiming measurement refers to the autonomous north-finding process achieved through a compass, inertial navigation system (INS), or satellite orientation equipment. Under specified environmental conditions and within a specified aiming time, north-pointing reference information meeting accuracy requirements is transmitted to the inertial navigation system on the aircraft via an electro-optical collimating theodolite or other optical transmission devices (GJB2538A). Before launch, the aircraft requires a high-precision flight direction azimuth reference from ground vehicles, serving as the benchmark for high-precision coordinate system transformation between the ground vehicles and the aircraft.

[0003] Azimuth aiming measurement has been developing towards higher precision and speed, placing increasingly higher demands on the accuracy and speed of aiming equipment. Currently, domestic azimuth aiming equipment generally consists of a north-finding unit and an aiming unit, completing the precise azimuth measurement of one target at a time. The aiming process involves the north-finding unit completing the northward measurement, followed by the aiming unit completing the northward transfer measurement. Most of the aiming time is spent on northward measurement. This serial working mode of first finding north and then aiming at a single target does not meet the development and application requirements of rapid azimuth aiming measurement.

[0004] Therefore, there is a need to provide a dual-target azimuth aiming measurement system and method. Summary of the Invention

[0005] The purpose of this invention is to provide a dual-target azimuth aiming and measurement system and method to solve the problem of aiming speed being affected by the north-finding measurement time, realize rapid and high-precision measurement of dual target azimuth with large elevation differences, and have the ability to perform long-term duty and quickly and automatically complete target azimuth measurement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dual-target azimuth aiming and measurement system includes: an optical path module, an azimuth information measurement module, and an aiming module, wherein...

[0008] The optical path module includes a first optical path for equipping the high-level dual targets as dual equivalent targets and a second optical path for realizing optical transfer between the northward reference and the dual equivalent targets;

[0009] The azimuth information measurement module is used to provide the north azimuth information to the aiming module in real time after the initial alignment with the north azimuth.

[0010] The aiming module is used to aim based on the north azimuth information of the azimuth information measurement module and a preset aiming procedure to obtain the north azimuth information of the two targets at a high position.

[0011] Preferably, the dual-target azimuth aiming measurement system further includes:

[0012] The aiming data monitoring module is used to monitor in real time the optical measurement data inside the optical path module, the inertial navigation data of the azimuth information measurement module, and the data exchanged with the external system by the dual-target azimuth aiming measurement system.

[0013] Preferably, the first optical path of the optical path module includes: a target prism, a horizontal transmission measurement optical path, a vertical transmission measurement optical path, a first target equivalent output prism, and a second target equivalent output prism;

[0014] The first optical path target prism transmits the measurement optical path through the horizontal transmission measurement optical path and the vertical transmission measurement optical path to the first target equivalent output prism and the second target equivalent output prism, so that the dual targets located at the high position are equivalent to the equivalent output target position that can be seen by the ground north-facing reference measurement.

[0015] Preferably, the second optical path of the optical path module includes: a first target equivalent output prism, a second target equivalent output prism, a northward reference measuring device, a first horizontal measurement optical path, and a second horizontal measurement optical path.

[0016] The second optical path northward reference measuring device measures the equivalent output prism of the first target through the first horizontal measuring optical path or

[0017] The second optical path northward reference measuring device measures the second target equivalent output prism through the second horizontal measuring optical path.

[0018] Preferably, the orientation information measurement module includes an inertial measurement unit, which is configured to align the navigation algorithm with the north reference measuring device and output north orientation information in real time.

[0019] Preferably, after the inertial measurement unit is aligned for the first time, it can output the required north azimuth information in real time without taking up aiming time.

[0020] Preferably, the aiming process of the targeted module includes: deployment process, workflow process, duty process and withdrawal process.

[0021] A dual-target azimuth aiming measurement method, the method utilizing the dual-target azimuth aiming measurement system as described above, the method comprising:

[0022] The optical path module converts the two targets into a first optical path that is equivalent to the two equivalent targets and a second optical path that is used to realize the optical transfer between the northward reference and the two equivalent targets;

[0023] After the initial alignment with the north azimuth, the azimuth information measurement module provides the north azimuth information to the aiming module in real time.

[0024] The aiming module aims based on the north azimuth information from the azimuth information measurement module and follows a preset aiming procedure to obtain the north azimuth information of the two targets at a high position.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention replaces the traditional serial working mode of first finding north and then aiming at a single target by optimizing the high-precision azimuth measurement method, optimizing the optical path design channel and aiming process. It solves the problem that the north-finding measurement time affects the speed of aiming, and realizes rapid and high-precision measurement of the azimuth of large elevation differences and dual targets. It has the ability to complete target azimuth measurement quickly and automatically during long-term duty. Attached Figure Description

[0027] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] Figure 1 The diagram shows the components of the rapid azimuth aiming design method for dual targets with large elevation differences described in this invention.

[0029] Figure 2 The diagram shows the equivalent optical path measurement of the non-distinguishing left and right target prism described in this invention.

[0030] Figure 3 The diagram shows the orientation measurement of the dual-target prism according to the present invention.

[0031] Figure 4 The diagram shows the aiming process design of the present invention.

[0032] In the figure: Target prism 1, Horizontal transfer measurement optical path 2, Vertical transfer measurement optical path 3, First target prism equivalent output prism 4, Second target prism equivalent output prism 5, First horizontal measurement optical path 6, Second horizontal measurement optical path 7, Northward reference measuring device 8. Detailed Implementation

[0033] To more clearly illustrate the present invention, the following description is in conjunction with preferred embodiments and accompanying drawings. Figure 1-3 The present invention will be further described below. Similar components in the accompanying drawings are indicated by the same reference numerals. Those skilled in the art should understand that the following detailed description is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.

[0034] This invention replaces the traditional serial working mode of first finding north and then aiming at a single target by optimizing the high-precision azimuth measurement method, optimizing the optical path design channel and aiming process. It solves the problem that the north-finding measurement time affects the speed of aiming, and realizes rapid and high-precision measurement of the azimuth of large elevation differences and dual targets. It has the ability to complete target azimuth measurement quickly and automatically during long-term duty.

[0035] The specific steps of a rapid azimuth aiming measurement design method for two targets are as follows:

[0036] Step 1: Design the measurement optical path between the high-level dual targets and the northward reference, as shown in the attached diagram. Figure 2 As shown

[0037] The target prism (1) at a high position is transmitted through the horizontal transmission measurement optical path (2) and the vertical transmission measurement optical path (3) to the target prism equivalent output prism left (4) and target prism equivalent output prism right (5) through optical measurement.

[0038] As attached Figure 3 As shown,

[0039] Establish the horizontal measurement optical path left (6) and horizontal measurement optical path right (7) between the northward reference measurement (8) and the left (4) and right (5) equivalent output prisms of the target prism;

[0040] Step 2: Design a high-precision azimuth information measurement mode. High-precision azimuth information is obtained through alignment using an inertial measurement unit (IMU). Set up an IMU alignment navigation algorithm. After the IMU is aligned for the first time, it can output the required north azimuth information in real time, ensuring that the north azimuth information measurement of the IMU does not occupy aiming time after entering the process.

[0041] Step 3: Design the aiming process. Based on the timing sequence of inertial north-seeking alignment measurement and optical aiming measurement, design the deployment process, workflow, duty process, and withdrawal process to meet the system's time requirements for rapid aiming.

[0042] Step 4: Target data monitoring design, real-time monitoring of internal optical measurement data, inertial navigation data, and external interaction data of dual-target azimuth aiming, timely data validity and equipment working status, and improved mission reliability.

[0043] A specific example:

[0044] A dual-target azimuth aiming and measurement system includes: an optical path module, an azimuth information measurement module, and an aiming module, wherein...

[0045] The optical path module includes a first optical path for equipping the high-level dual targets as dual equivalent targets and a second optical path for realizing optical transfer between the northward reference and the dual equivalent targets;

[0046] The azimuth information measurement module is used to provide the north azimuth information to the aiming module in real time after the initial alignment with the north azimuth.

[0047] The aiming module is used to aim based on the north azimuth information of the azimuth information measurement module and a preset aiming procedure to obtain the north azimuth information of the two targets at a high position.

[0048] Preferably, the dual-target azimuth aiming measurement system further includes:

[0049] The aiming data monitoring module is used to monitor in real time the optical measurement data inside the optical path module, the inertial navigation data of the azimuth information measurement module, and the data exchanged with the external system by the dual-target azimuth aiming measurement system.

[0050] Preferably, the first optical path of the optical path module includes: a target prism, a horizontal transmission measurement optical path, a vertical transmission measurement optical path, a first target equivalent output prism, and a second target equivalent output prism;

[0051] The first optical path target prism transmits the measurement optical path through the horizontal transmission measurement optical path and the vertical transmission measurement optical path to the first target equivalent output prism and the second target equivalent output prism, so that the dual targets located at the high position are equivalent to the equivalent output target position that can be seen by the ground north-facing reference measurement.

[0052] Preferably, the second optical path of the optical path module includes: a first target equivalent output prism, a second target equivalent output prism, a northward reference measuring device, a first horizontal measurement optical path, and a second horizontal measurement optical path.

[0053] The second optical path northward reference measuring device measures the equivalent output prism of the first target through the first horizontal measuring optical path or

[0054] The second optical path northward reference measuring device measures the second target equivalent output prism through the second horizontal measuring optical path.

[0055] Preferably, the orientation information measurement module includes an inertial measurement unit, which is configured to align the navigation algorithm with the north reference measuring device and output north orientation information in real time.

[0056] Preferably, after the inertial measurement unit is aligned for the first time, it can output the required north azimuth information in real time without taking up aiming time.

[0057] Preferably, the aiming process of the targeted module includes: deployment process, workflow process, duty process and withdrawal process.

[0058] A specific example:

[0059] A dual-target azimuth aiming measurement method, the method utilizing the dual-target azimuth aiming measurement system as described above, the method comprising:

[0060] The optical path module converts the two targets into a first optical path that is equivalent to the two equivalent targets and a second optical path that is used to realize the optical transfer between the northward reference and the two equivalent targets;

[0061] After the initial alignment with the north azimuth, the azimuth information measurement module provides the north azimuth information to the aiming module in real time.

[0062] The aiming module aims based on the north azimuth information from the azimuth information measurement module and follows a preset aiming procedure to obtain the north azimuth information of the two targets at a high position.

[0063] In the description of this invention, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A dual-target azimuth aiming and measurement system, characterized in that, include: The optical path module, the azimuth information measurement module, and the aiming module, among which... The optical path module includes a first optical path for equipping the high-level dual targets as dual equivalent targets and a second optical path for realizing optical transfer between the northward reference and the dual equivalent targets; The azimuth information measurement module is used to provide the north azimuth information to the aiming module in real time after the initial alignment with the north azimuth. The aiming module is used to aim based on the north azimuth information of the azimuth information measurement module and a preset aiming process to obtain the north azimuth information of the two targets at a high position. The optical path module includes the following first optical path: target prism, horizontal transmission measurement optical path, vertical transmission measurement optical path, first target equivalent output prism, and second target equivalent output prism; The first optical path target prism transmits the measurement optical path through the horizontal transmission measurement optical path and the vertical transmission measurement optical path to the first target equivalent output prism and the second target equivalent output prism, so that the dual targets located at the high position are equivalent to the equivalent output target position that can be seen by the ground north-facing reference measurement. The second optical path of the optical path module includes: a first target equivalent output prism, a second target equivalent output prism, a northward reference measuring device, a first horizontal measurement optical path, and a second horizontal measurement optical path. The second optical path northward reference measuring device measures the equivalent output prism of the first target through the first horizontal measuring optical path or The second optical path northward reference measuring device measures the second target equivalent output prism through the second horizontal measuring optical path.

2. The dual-target azimuth aiming and measurement system as described in claim 1, characterized in that, The dual-target azimuth aiming and measurement system also includes: The aiming data monitoring module is used to monitor in real time the optical measurement data inside the optical path module, the inertial navigation data of the azimuth information measurement module, and the data exchanged with the external system by the dual-target azimuth aiming measurement system.

3. The dual-target azimuth aiming and measurement system as described in claim 1, characterized in that, The orientation information measurement module includes an inertial measurement unit, which is configured to align the navigation algorithm with the north reference measuring device and output north orientation information in real time.

4. The dual-target azimuth aiming and measurement system as described in claim 3, characterized in that, After the inertial measurement unit is aligned for the first time, it can output the required north azimuth information in real time without taking up aiming time.

5. The dual-target azimuth aiming and measurement system as described in claim 1, characterized in that, The targeting process for the targeted module includes: deployment process, workflow, shift process, and withdrawal process.

6. A method for dual-target azimuth aiming measurement, characterized in that, The measurement method utilizes the dual-target azimuth aiming measurement system as described in any one of claims 1-5, and the method includes: The optical path module converts the two targets into a first optical path that is equivalent to the two equivalent targets and a second optical path that is used to realize the optical transfer between the northward reference and the two equivalent targets; After the initial alignment with the north direction, the azimuth information measurement module provides the north direction azimuth information to the aiming module in real time. The aiming module aims based on the north azimuth information from the azimuth information measurement module and follows a preset aiming procedure to obtain the north azimuth information of the two targets at a high position.

Images