CN113191350A - Method and equipment for detecting state of switch knob of aircraft cockpit - Google Patents
Method and equipment for detecting state of switch knob of aircraft cockpit Download PDFInfo
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Abstract
The invention discloses a method and equipment for detecting the state of a switch knob of an aircraft cockpit, which can analyze the state of each switch knob by using an algorithm by shooting pictures of the switch knob on a control panel of the cockpit, and display the defective, missing and incorrectly reset switch knobs in a result output display, thereby greatly reducing the labor intensity of detection personnel, saving the detection time and improving the efficiency, effectively avoiding the conditions of manual missing detection, false detection and the like, ensuring the detection accuracy and simultaneously improving the safety.
Description
Technical Field
The invention relates to the technical field of aircraft maintenance, in particular to a method and equipment for detecting the state of a switch knob of an aircraft cockpit.
Background
The aircraft driving process involves the pilot to operate a plurality of modules, such as a power module, a navigation module, a communication module, a hydraulic module and the like, and the number of the modules corresponding to the switch knobs is large. After each flight task is finished, the ground service inspectors need to inspect the states of the switch knobs, and find that the switch knobs are defective or missing in time and the switch knobs are not reset correctly. At present, the checking mode mostly depends on that ground service inspectors enter the cockpit to check and confirm each switch knob one by one. The mode is time-consuming and labor-consuming, and due to the fact that the number of the switch knobs is too large, the detection is easy to miss. Once a missed inspection occurs, the parts of the airplane are easily damaged, such as the exhausted battery. And the flight safety is threatened if the weight is high.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method and equipment for detecting the state of a switch knob of an aircraft cockpit, and aims to solve the problem that manual checking and checking of a large number of switch knobs are easy to miss.
In order to achieve the purpose, the invention adopts the specific scheme that: the utility model provides an aircraft cockpit switch knob state check out test set, including data acquisition unit, state detection unit and result output display, data acquisition unit and state detection unit are connected, state detection unit and result output display are connected, data acquisition unit is used for collecting the switch knob image data of cockpit control panel and self position appearance data and carry the data of collecting to state detection unit, state detection unit is used for detecting the data of receiving in order to judge the state of every switch knob, later carry data to result output display output result.
As a further optimization of the above technical solution: the data acquisition unit comprises a handheld data acquisition terminal, and an image acquisition module, a pose sensing module and a data transmission module which are arranged on the handheld data acquisition terminal;
the image acquisition module can acquire image data of the switch knob and transmit the image data to the data sending module;
the pose sensing module can record pose data of the handheld data acquisition terminal and transmit the pose data to the data sending module;
the data sending module can transmit the acquired pose data and the switch knob image data to the state detection unit.
As a further optimization of the above technical solution: the image acquisition module consists of an industrial camera and a high-precision lens;
the pose sensing module is a three-axis spiral sensor;
the data sending module consists of an RS232 wireless serial port module and a transmitting antenna.
As a further optimization of the above technical solution: the handheld data acquisition terminal is of a gun-shaped structure, and a trigger switch used for controlling the work of the data acquisition unit and a handle convenient for hands to hold are arranged on the handheld data acquisition terminal.
As a further optimization of the above technical solution: the state detection unit comprises a control box, and a data receiving module, an image characteristic point extracting module, a coarse positioning module based on pose data, a fine positioning module based on image characteristic points, a switch knob state detection module and a switch knob state comparison module which are arranged in the control box;
the data receiving module can receive the pose and switch knob image data sent by the data acquisition unit;
the image feature point extraction module can segment an instrument area from the received image data and extract the point features of the instrument area;
the rough positioning module based on the pose data can calculate the approximate position and the orientation of the data acquisition unit in the cockpit;
the fine positioning module based on the image feature points can match the image feature points in the instrument data of the cockpit based on the approximate position and the orientation of the data acquisition unit in the cockpit so as to obtain the accurate positioning of the shot instrument area, and each switch knob is separated from the image according to the accurate positioning result;
the switch knob state comparison module is connected with the database and can compare switch knob information stored in the database;
the switch knob detection module can judge the state of each switch knob according to the comparison data of the switch knob state comparison module and output a result.
As a further optimization of the above technical solution: the data receiving module consists of an RS232 wireless serial port module and a receiving antenna.
A method for detecting the state of a switch knob of an aircraft cockpit uses the device for detecting the state of the switch knob of the aircraft cockpit and comprises the following steps:
an inspector enters the airplane cockpit by carrying the data acquisition unit to acquire images and pose data of a control panel of the cockpit and sends the acquired images and pose data to the state detection unit;
the state detection unit divides an instrument area from the received image, extracts point characteristics of the instrument area at the same time, and estimates the approximate position and the direction of the data acquisition unit in the cockpit;
matching image characteristic points in the cockpit instrument data based on the estimation result of the approximate position and the orientation of the data acquisition unit in the cockpit, so as to obtain the accurate positioning of the shot instrument area;
and according to the accurate positioning result, each switch knob is divided in the image and is compared with the switch knob information stored in the database, the state of each switch knob is judged, and then the data is transmitted to an output display to output the result.
As a further optimization of the above technical solution: the instrument region image point features use Harris corner points and SIFT feature points.
As a further optimization of the above technical solution: and matching the characteristic points of the instrument area by adopting a small two multiplication method and an ICP algorithm.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, by shooting the pictures of the switch knobs on the control panel of the cockpit, the states of the switch knobs can be analyzed by using an algorithm, and the defective, missing and incorrectly reset switch knobs are displayed in the result output display, so that the labor intensity of detection personnel is greatly reduced, the detection time is saved, the efficiency is improved, the conditions of manual missing detection, false detection and the like can be effectively avoided, the detection accuracy is ensured, and the safety is improved.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic block diagram of the inspection apparatus of the present invention;
FIG. 3 is a schematic diagram of a data acquisition unit according to the present invention;
FIG. 4 is a schematic structural diagram of a status detection unit according to the present invention;
the labels in the figure are: 1. the system comprises a data acquisition unit, 101, an image acquisition module, 1011, an industrial camera, 1012, a high-precision lens, 102, a pose sensing module, 103, a data sending module, 1031, an RS232 wireless serial port module, 1032, a transmitting antenna, 104, a handle, 105, a trigger switch, 2, a state detection unit, 201, a data receiving module, 2011, a receiving antenna, 202, an image feature point extraction module, 203, a rough positioning module based on pose data, 204, a fine positioning module based on image feature points, 205, a switch knob state detection module, 206, a switch knob state comparison module, 207, a control box, 3 and a result output display.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings, the state detection device for the switch knobs of the cockpit of the airplane comprises a data acquisition unit 1, a state detection unit 2 and a result output display 3, wherein the data acquisition unit 1 is connected with the state detection unit 2, the state detection unit 2 is connected with the result output display 3, the data acquisition unit 1 is used for collecting image data of the switch knobs of the cockpit control panel and pose data of the data acquisition unit 1 and transmitting the collected data to the state detection unit 2, the state detection unit 2 is used for detecting the received data to judge the state of each switch knob, and then transmitting the data to the result output display 3 to output results.
The data acquisition unit 1 comprises a handheld data acquisition terminal, and an image acquisition module 101, a pose sensing module 102 and a data transmission module 103 which are arranged on the handheld data acquisition terminal, wherein the image acquisition module 101 and the pose sensing module 102 are both connected with the data transmission module 103, the handheld data acquisition terminal is in a gun-shaped structure, and a trigger switch 105 for controlling the data acquisition unit 1 to work and a handle 104 convenient for being held by hands are arranged on the handheld data acquisition terminal;
the image acquisition module 101 consists of an industrial camera 1011 and a high-precision lens 1012, and the image acquisition module 101 can acquire image data of a switch knob and transmit the image data to the data transmission module 103;
the pose sensing module 102 adopts a three-axis spiral sensor, can record pose data of the handheld data acquisition terminal, and transmits the pose data to the data sending module 103;
the data sending module 103 is composed of an RS232 wireless serial port module 1031 and a transmitting antenna 1032.
The whole airplane cockpit switch knob state detection equipment is divided into two parts, namely, a handheld data acquisition terminal of each module of the integrated data acquisition unit and a control box 207 of each module of the integrated state detection unit 2 are used for data analysis, and meanwhile, a result output display 3 is also arranged on the control box 207, namely in the embodiment, each module of the state detection unit 2 is arranged in the control box 207, the structure which is split type of the data acquisition unit with the handheld data acquisition terminal is adopted, of course, the structure which is integrated on the handheld data acquisition terminal and is used for integrating the state detection unit 2 and the result output display 3 can be adopted, and the result can be directly checked after the data are collected.
The state detection unit 2 comprises a control box 207, a data receiving module 201, an image feature point extracting module 202, a rough positioning module 203 based on pose data, a fine positioning module 204 based on image feature points, a switch knob state detection module 205 and a switch knob state comparison module 206, wherein the data receiving module 201, the image feature point extracting module 202, the rough positioning module based on pose data, the fine positioning module based on image feature points, the switch knob state detection module 205 and the switch knob state comparison module 206 are arranged in the control box 207;
the data receiving module 201 consists of an RS232 wireless serial port module 1031 and a receiving antenna 2011, and can receive the pose and switch knob image data sent by the data acquisition unit 1, that is, the state detection unit 2 and the data acquisition unit 1 are connected through the data receiving module 201 and the data sending module 103 of the two, and the connection mode can adopt wired connection or wireless connection;
the image feature point extraction module 202 can segment an instrument region where a switch knob on the control panel is located from the received image data and extract point features of the instrument region, and the Harris corner point, SIFT feature point and other types of point features can be used;
the pose data based coarse positioning module 203 can estimate the approximate position and orientation of the handheld data acquisition terminal in the cockpit;
the fine positioning module 204 based on the image feature points can match the image feature points in the instrument data of the cockpit based on the approximate position and orientation of the handheld data acquisition terminal in the cockpit to obtain the accurate positioning of the shot instrument area, and separate each switch knob in the image according to the accurate positioning result, and the used matching method can be a point matching algorithm of the type of least square method, ICP algorithm and the like;
the switch knob state comparison module 206 is connected with the database and can compare switch knob information stored in the database, wherein the data stored in the database is data of a normal state of a switch knob;
the switch knob detection module can judge the state of each switch knob according to the comparison data of the switch knob state comparison module 206 and output the result to the result output display 3, the output result refers to whether each switch knob is correctly reset or whether a defect exists, when the state of each switch knob is judged, the adopted method is to classify the state of the local area separated by each switch knob image, the classification is realized based on the rule after the image processing, or the classifier can be established through a statistical learning method, the module in the state detection unit 2 can realize the function of each module through the X86 industrial personal computer arranged in the control box 207 in a software mode, and certainly, the function can also be realized through hardware.
A method for detecting the state of a switch knob of an aircraft cockpit is carried out by using the device for detecting the state of the switch knob of the aircraft cockpit, and comprises the following steps:
an inspector enters an airplane cockpit by carrying a handheld data acquisition terminal, presses a trigger switch 105 to take a picture of a control panel of the cockpit, and sends acquired image data and pose data of the airplane cockpit where the data acquisition terminal is located to a state detection unit 2;
the state detection unit 2 divides an instrument area where a switch knob on an operation panel is located from the received image, extracts point characteristics of the instrument area, and estimates the approximate position and orientation of the handheld data acquisition terminal in the cockpit;
matching image characteristic points in the cockpit instrument data based on the estimation result of the approximate position and the orientation of the data acquisition unit 1 in the cockpit to obtain the accurate positioning of the shot instrument area;
and according to the accurate positioning result, each switch knob is divided in the image and is compared with the switch knob information stored in the database, the state of each switch knob is judged, then the data is transmitted to an output display, the result is output, and if the switch knob in the abnormal state exists, an alarm is given.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an aircraft cockpit switch knob state check out test set which characterized in that: the device comprises a data acquisition unit (1), a state detection unit (2) and a result output display (3), wherein the data acquisition unit (1) is connected with the state detection unit (2), the state detection unit (2) is connected with the result output display (3), the data acquisition unit (1) is used for collecting the image data of a switch knob of a control panel of a cockpit and the pose data of the data acquisition unit and transmitting the collected data to the state detection unit (2), the state detection unit (2) is used for analyzing and detecting the received data to judge the state of each switch knob, and then the data are transmitted to the result output display (3) to output results.
2. An aircraft cockpit switch knob status detection device as claimed in claim 1 wherein: the data acquisition unit (1) comprises a handheld data acquisition terminal, and an image acquisition module (101), a pose sensing module (102) and a data sending module (103) which are arranged on the handheld data acquisition terminal;
the image acquisition module (101) can acquire image data of the switch knob and transmit the image data to the data transmission module (103);
the pose sensing module (102) can record pose data of the handheld data acquisition terminal and transmit the pose data to the data sending module (103);
the data sending module (103) can transmit the acquired pose data and the switch knob image data to the state detection unit (2).
3. An aircraft cockpit switch knob status detection device as claimed in claim 2 wherein:
the image acquisition module (101) consists of an industrial camera (1011) and a high-precision lens (1012);
the pose sensing module (102) is a three-axis spiral sensor;
the data sending module (103) is composed of an RS232 wireless serial port module (1031) and a transmitting antenna (1032).
4. An aircraft cockpit switch knob status detection device as claimed in claim 2 wherein: the handheld data acquisition terminal is of a gun-shaped structure, and a trigger switch (105) used for controlling the data acquisition unit (1) to work and a handle (104) convenient to hold by hands are arranged on the handheld data acquisition terminal.
5. An aircraft cockpit switch knob status detection device as claimed in claim 1 wherein: the state detection unit (2) comprises a control box (207), a data receiving module (201), an image feature point extracting module (202), a pose data-based rough positioning module (203), an image feature point-based fine positioning module (204), a switch knob state detection module (205) and a switch knob state comparison module (206), wherein the data receiving module (201), the image feature point extracting module, the pose data-based rough positioning module (203), the image feature point-based fine positioning module and the switch knob state comparison module are arranged in the control box (207);
the data receiving module (201) can receive pose and switch knob image data sent by the data acquisition unit (1);
the image feature point extraction module (202) can divide the instrument area from the received image data and extract the point feature of the instrument area;
the rough positioning module (203) based on the pose data can calculate the approximate position and the orientation of the data acquisition unit (1) in the cockpit;
the fine positioning module (204) based on the image characteristic points can match the image characteristic points in the cockpit instrument data based on the approximate position and orientation of the data acquisition unit (1) in the cockpit to obtain the accurate positioning of the shot instrument area, and separates each switch knob in the image according to the accurate positioning result;
the switch knob state comparison module (206) is connected with the database and can compare switch knob information stored in the database; the switch knob detection module can judge the state of each switch knob according to the comparison data of the switch knob state comparison module (206) and output a result.
6. The aircraft sword compartment switch knob state detection device of claim 5, characterized in that: the data receiving module (201) is composed of an RS232 wireless serial port module (1031) and a receiving antenna (2011).
7. An aircraft cockpit switch knob status detection device as claimed in claim 1 wherein: the data collection unit and the state detection unit (2) adopt a split type or integrated structure.
8. A method for detecting the state of a switch knob of an aircraft cockpit is characterized by comprising the following steps: use of an aircraft cockpit switch knob status detection device according to any of claims 1 to 7 and comprising the steps of:
an inspector enters an airplane cockpit by carrying a data acquisition unit (1) to acquire images and pose data of a control panel of the cockpit and sends the acquired images and pose data to a state detection unit (2);
the state detection unit (2) divides an instrument area from the received image, extracts point characteristics of the instrument area, and estimates the approximate position and orientation of the data acquisition unit (1) in the cockpit;
matching image characteristic points in the cockpit instrument data based on the estimation result of the approximate position and orientation of the data acquisition unit (1) in the cockpit, thereby obtaining the accurate positioning of the shot instrument area;
and according to the accurate positioning result, each switch knob is divided in the image and is compared with the switch knob information stored in the database, the state of each switch knob is judged, and then the data is transmitted to an output display to output the result.
9. An aircraft cockpit switch knob status detection method as claimed in claim 8, wherein: the instrument region image point features use Harris corner points and SIFT feature points.
10. An aircraft cockpit switch knob status detection method as claimed in claim 8, wherein: and matching the characteristic points of the instrument area by adopting a small two multiplication method and an ICP algorithm.
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