Airplane part coordinate measurement data temperature compensation system and method

Abstract

The invention provides an aircraft part coordinate measurement data temperature compensation system, and the system comprises an environment temperature and humidity monitoring device which is used for measuring the temperature and humidity of a working environment, obtaining the temperature data of the surface of an aircraft part, carrying out the deviation calculation of the environment temperature and the surface temperature of the part, monitoring the constant-temperature state of the part, and outputting the temperature data of the surface of the aircraft part; when the part is in a constant-temperature state, a measurement data temperature compensation value is provided for measurement software; the part temperature monitoring device is used for measuring the surface temperature of the aircraft part; meanwhile, the invention further provides an aircraft part coordinate measurement data temperature compensation method.

Description

Technical Field

[0001] The present application belongs to the field of three-dimensional digital measurement technology, and specifically relates to a temperature compensation system and method for coordinate measurement data of aircraft parts. Background Art

[0002] Large-sized aircraft parts mainly include wing beams, wall panels, frames, long spars, etc. The size of these parts is usually more than 2 meters, and some wing beams and wall panels are even as long as 18 meters. These parts are difficult to process and manufacture, and are prone to deformation, which leads to incoordination of aircraft assembly. After the parts are processed, coordinate measuring equipment is usually required to conduct a comprehensive inspection of the shape, size and form and position tolerance of the parts. Coordinate measuring equipment such as three-dimensional measuring machines and laser trackers are currently important means of product quality assurance in the manufacturing process of large-sized aircraft parts. Since large-sized aircraft parts are usually made of aluminum alloy materials, their dimensions vary greatly due to the influence of ambient temperature. Therefore, the ambient temperature and constant temperature state of the parts need to be strictly controlled at the part measurement site. For example, the operating environment temperature of the measuring machine is 20±3℃, and the temperature fluctuation cannot exceed 1℃ per hour. The parts need to be kept at a constant temperature at the measurement site to ensure that the parts are in a stable state before they can be measured, so as to objectively and accurately evaluate whether their quality state meets the design function requirements. At present, mechanical dry and wet thermometers are usually used for ambient temperature detection on-site, and portable thermometers are used for part surface temperature detection. Then, measurement data compensation is performed based on the temperature of the measured part at a certain moment. This traditional temperature detection and part measurement data compensation method has the following problems:

[0003] 1. Ambient temperature changes have a significant impact on the measurement data of large-size aircraft parts. Traditional mechanical wet and dry thermometers and portable thermometers can only observe temperature changes manually. This method cannot monitor in real time whether the ambient temperature fluctuations meet the requirements during the long-term measurement of large-size parts, which may lead to inaccurate measurement results.

[0004] 2. Aircraft parts need to be kept at a constant temperature in the measurement environment. Since the constant temperature time cannot be accurately calculated, the constant temperature time of the parts is currently determined conservatively based on factors such as the cross-sectional size of the parts to be measured and experience to ensure that the parts reach a constant temperature state. Although this method is feasible, it prolongs the part inspection cycle.

[0005] 3. The measurement time of large-size aircraft parts is long, and the on-site ambient temperature and part temperature change over time. Traditional mechanical wet and dry thermometers and portable thermometers can only read the temperature at a certain moment manually, and cannot perform temperature compensation on the part measurement data in real time, which may lead to inaccurate measurement results. Summary of the invention

[0006] Purpose of the invention: A temperature compensation system and method for coordinate measurement data of aircraft parts are provided. A set of environmental temperature and humidity monitoring devices and multi-channel part temperature monitoring devices are developed by adopting digital high-precision temperature and humidity sensors, wireless data transmission, dynamic compensation of measurement data and other technologies. A set of temperature monitoring and measurement data compensation software is developed to replace traditional mechanical dry-wet thermometers and portable thermometers. High-precision digital sensors are used to collect environmental temperature and humidity and part temperature data. The data is recorded through a storage unit, and the single-chip microcomputer processes and analyzes the data in real time, so as to realize real-time monitoring of temperature fluctuations during the measurement process and real-time monitoring of the constant temperature state of parts, so as to realize accurate compensation and efficient detection of measurement data of large-size aircraft parts.

[0007] In a first aspect, the present application provides a temperature compensation system for coordinate measurement data of aircraft parts, the compensation system comprising:

[0008] An environmental temperature and humidity monitoring device is used to measure the temperature and humidity of the working environment, obtain the temperature data of the surface of the aircraft parts, calculate the deviation between the environmental temperature and the surface temperature of the parts, monitor the constant temperature state of the parts, and provide the measurement data temperature compensation value to the measurement software when the parts are in the constant temperature state;

[0009] Parts temperature monitoring device, used to measure the temperature of the aircraft parts surface.

[0010] Preferably, the environmental temperature and humidity monitoring device comprises:

[0011] A first single-chip microcomputer, wherein the first single-chip microcomputer is connected to the temperature and humidity sensor, the memory, the clock module, and the first communication module;

[0012] The first single-chip microcomputer is used to obtain the ambient temperature and humidity in real time from the temperature and humidity sensor, obtain the temperature of the surface of the part in real time from the first communication module, and then automatically calculate the deviation between the ambient temperature and the surface temperature of the part, monitor the ambient temperature change and the constant temperature state of the part, and provide the temperature compensation value of the measurement data for the temperature monitoring and measurement data compensation software when the part is in the constant temperature state;

[0013] The temperature and humidity sensor is connected to the first single-chip microcomputer, and is used to measure the ambient temperature and humidity.

[0014] Preferably, the environmental temperature and humidity monitoring device further includes:

[0015] A clock module, connected to the first single-chip microcomputer, and used to measure the current time;

[0016] The memory is connected to the first single-chip computer, and is used to store environmental temperature and humidity, part surface temperature, and temperature compensation data in real time.

[0017] Preferably, the environmental temperature and humidity monitoring device further includes:

[0018] The first wireless communication module is connected to the first single-chip computer, and the first wireless communication module is used to obtain the temperature of the surface of the aircraft part.

[0019] Preferably, the part temperature monitoring device comprises:

[0020] A temperature sensor is connected to the second single-chip microcomputer, and the temperature sensor is used to collect the surface temperature of the part;

[0021] A second wireless communication module is connected to the second single-chip microcomputer, and the second wireless communication module is used to send the measured temperature data of the parts and receive the ambient temperature and the constant temperature state data of the parts;

[0022] The second single-chip microcomputer is connected to the temperature sensor and the second communication module. The second single-chip microcomputer is used for collecting the temperature of the parts, sending and receiving data, and displaying the constant temperature status of the parts.

[0023] In a second aspect, the present application also provides a method for temperature compensation of coordinate measurement data of aircraft parts, the method comprising the following steps:

[0024] Step 1. According to the ambient temperature and humidity control range, the ambient temperature and humidity monitoring device automatically monitors the ambient temperature and humidity; when the measured ambient temperature exceeds the measurement range, the system automatically triggers the part measurement software to stop measuring; when the ambient temperature exceeds the maximum control range, the ambient status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green;

[0025] Step 2. According to the constant temperature control requirements of the parts, the part temperature monitoring device automatically monitors the changes in the surface temperature of the parts. When the surface temperature of the parts exceeds the control range, the system automatically triggers the part measurement software to stop measuring; when the ambient temperature exceeds the maximum control range, the constant temperature status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green;

[0026] Step 3: According to the requirements for ambient temperature fluctuation control, when the ambient temperature fluctuation automatically monitored by the ambient temperature and humidity monitoring device exceeds the maximum value, the system automatically triggers the part measurement software to stop measuring, the ambient status light turns orange, and an alarm is sounded through the voice broadcast module until the ambient temperature meets the requirements;

[0027] Step 4: The environmental temperature and humidity monitoring device is automatically connected to the part temperature monitoring device to monitor and analyze the environmental temperature and part temperature in real time to ensure that the part is measured under a constant temperature state;

[0028] Step 5. During the part measurement process, when the ambient temperature and part temperature are within the control range and the part is in a constant temperature state, the temperature monitoring and measurement data compensation software automatically compensates the part measurement coordinate value according to the part material and the current part temperature average value until the part measurement is completed.

[0029] Preferably, the step 4 further comprises:

[0030] When the part temperature exceeds the control range, the system automatically triggers the part measurement software to stop measuring, the constant temperature status light turns orange, and an alarm is sounded through the voice broadcast module until the part temperature meets the constant temperature requirements.

[0031] Preferably, the step 5 further comprises:

[0032] When the ambient temperature and part temperature change beyond the control range, the system automatically triggers the part measurement software to stop measuring, and issues an alarm reminder through the ambient status light, constant temperature status light and voice broadcast module.

[0033] This application has the following technical effects:

[0034] 1. The environmental temperature and humidity monitoring device designed by the present invention has the advantages of fast acquisition speed, real-time storage, and scalability. It replaces the traditional mechanical thermometer and humidity meter and realizes real-time monitoring of the environmental temperature fluctuation of the part measurement. When the temperature exceeds the range, the system alarms through the status light to ensure the reliability of the part measurement data.

[0035] 2. The component temperature monitoring device designed by the present invention adopts component temperature sensors and wireless data transmission technology to replace the manual detection method of single-point portable thermometers, thereby realizing real-time monitoring of the constant temperature state of components and significantly shortening the waiting time for constant temperature of components.

[0036] 3. The temperature monitoring and compensation software designed by the present invention can dynamically obtain the on-site ambient temperature and part temperature during the aircraft parts measurement process, accurately compensate the measurement data in real time, and ensure the accuracy of the parts measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is an overall schematic diagram of a temperature compensation system for coordinate measurement data of aircraft parts provided in an embodiment of the present application;

[0038] Figure 2 It is a schematic diagram of the appearance structure of an environmental temperature and humidity monitoring device provided in an embodiment of the present application;

[0039] Figure 3 It is a schematic diagram of the internal structure of an environmental temperature and humidity monitoring device provided in an embodiment of the present application;

[0040] Figure 4It is a schematic diagram of the appearance structure of a parts temperature monitoring device provided in an embodiment of the present application;

[0041] Figure 5 It is a schematic diagram of the internal structure of a parts temperature monitoring device provided in an embodiment of the present application;

[0042] Explanation of numbers in the figure: 1. Ambient temperature and humidity monitoring device; 2. Part temperature monitoring device; 3. Temperature monitoring and measurement data compensation software; 11. First device housing; 12. Touch screen; 13. Environmental status light; 14. First single-chip microcomputer; 15. Memory; 16. Ambient temperature and humidity sensor; 17. Clock module; 18. First wireless communication module; 19. Voice broadcast module; 21. Second device housing; 22. Display screen; 23. Constant temperature status light; 24. Power supply; 25. Second wireless communication module; 26. Second single-chip microcomputer; 27. Temperature sensor. DETAILED DESCRIPTION

[0043] See also Figure 1-Figure 5 The temperature compensation system for coordinate measurement data of aircraft parts shown in the figure comprises an environmental temperature and humidity monitoring device 1, a parts temperature monitoring device 2, and temperature monitoring and measurement data compensation software 3.

[0044] The temperature and humidity monitoring device is composed of a first housing 11, a touch screen 12, an environment status light 13, a first single-chip microcomputer 14, a memory 15, a temperature and humidity sensor 16, a clock module 17, a first wireless communication module 18, a voice broadcast module 19 and other parts.

[0045] The part temperature monitoring device is composed of a second housing 21 , a display screen 22 , a constant temperature status light 23 , a power supply 24 , a second wireless communication module 25 , a second single-chip microcomputer 26 , a temperature sensor 27 and the like.

[0046] The present application provides a temperature compensation system for coordinate measurement data of aircraft parts, including an environmental temperature and humidity monitoring device, a part temperature monitoring device, and temperature monitoring and measurement data compensation software.

[0047] The environmental temperature and humidity monitoring device is composed of high-precision environmental temperature and humidity sensors, single-chip microcomputers, storage modules, touch screens, wireless communication modules, environmental status lights and other modules. The device collects and displays the environmental temperature and humidity of the parts in real time through the environmental temperature and humidity sensors, and uses an embedded storage unit to record the data. At the same time, the device can be connected to multiple parts temperature monitoring devices through the wireless communication module to collect data from various parts temperature collection points. When the environmental temperature changes beyond the set value, the environmental status lights flash in different colors for early warning and alarm reminders.

[0048] The part temperature monitoring device is composed of high-precision temperature sensors, single-chip microcomputers, display modules, wireless communication modules, constant temperature status lights, etc. The temperature sensor of the device is in contact with the surface of the part to be measured, which can accurately measure the surface temperature of the part, and transmit the measured data to the environmental temperature and humidity monitoring device for processing and analysis through the wireless module. When the temperature change of the part exceeds the set value, the constant temperature status light flashes in different colors to give early warning and alarm reminders.

[0049] The temperature monitoring and measurement data compensation software consists of modules such as data acquisition configuration, ambient temperature monitoring, part temperature monitoring, and measurement data compensation. When measuring parts, first set and connect the communication ports of each module through the data acquisition configuration module, then call the ambient temperature monitoring module, dynamically display the ambient temperature and humidity curve, and the current ambient temperature and humidity and part temperature in real time. By calling the part temperature monitoring module, the temperature fluctuation of the part is monitored, and the constant temperature state of the part is analyzed. By calling the measurement data compensation module, accurate compensation of the measurement data is achieved.

[0050] In another embodiment of the present application, a method for temperature compensation of coordinate measurement data of aircraft parts is provided, comprising the following steps:

[0051] Step 1. According to the ambient temperature and humidity control range, the ambient temperature and humidity monitoring device automatically monitors the ambient temperature and humidity. When the measured ambient temperature exceeds the measurement range, the system automatically triggers the part measurement software to stop measuring. When the ambient temperature exceeds the maximum control range, the ambient status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green.

[0052] Step 2: According to the constant temperature control requirements of the parts, the part temperature monitoring device automatically monitors the changes in the surface temperature of the parts. When the surface temperature of the parts exceeds the control range, the system automatically triggers the part measurement software to stop measuring. When the ambient temperature exceeds the maximum control range, the constant temperature status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green.

[0053] Step 3. According to the requirements for ambient temperature fluctuation control, when the ambient temperature fluctuation automatically monitored by the ambient temperature and humidity monitoring device exceeds the maximum value, the system automatically triggers the part measurement software to stop measuring, the ambient status light turns orange, and an alarm is sounded through the voice broadcast module until the ambient temperature meets the requirements.

[0054] Step 4: The ambient temperature and humidity monitoring device automatically connects to the part temperature monitoring device to monitor and analyze the ambient temperature and part temperature in real time to ensure that the part is measured under constant temperature. When the part temperature exceeds the control range, the system automatically triggers the part measurement software to stop measuring, the constant temperature status light turns orange, and the voice broadcast module alarms until the part temperature meets the constant temperature requirements.

[0055] Step 5. During the part measurement process, when the ambient temperature and part temperature are within the control range and the part is in a constant temperature state, the temperature monitoring and measurement data compensation software automatically compensates the part measurement coordinate value according to the part material and the current average part temperature until the part measurement is completed; when the ambient temperature and part temperature change exceed the control range, the system automatically triggers the part measurement software to stop measuring, and reminds through the environment status light, constant temperature status light and voice broadcast module.

[0056] 1. The environmental temperature and humidity monitoring device designed by the present invention adopts digital high-precision temperature and humidity sensor technology to replace the traditional mechanical dry and wet thermometer detection method, solves the problem of manual monitoring of temperature fluctuations in the measurement of large-size aircraft parts, and realizes real-time monitoring of environmental temperature fluctuations during the part measurement process to ensure reliable measurement data.

[0057] 2. The component temperature monitoring device designed by the present invention adopts multi-channel component temperature sensors and wireless data transmission technology to replace the manual detection method of single-point portable thermometers, so as to realize real-time monitoring of the constant temperature status of large-size aircraft components, solve the problem of accurate control of the constant temperature time of components, and shorten the waiting time for constant temperature of components.

[0058] 3. The temperature monitoring and compensation software designed by the present invention can dynamically obtain the on-site ambient temperature and part temperature during the measurement of large-size aircraft parts, accurately compensate the measurement data in real time, and solve the problem of accurate temperature compensation of measurement data. When the temperature range is exceeded, the system will alarm by flashing the status light, etc., to ensure accurate part measurement results.

Claims

1. A temperature compensation system for coordinate measurement data of aircraft parts, characterized in that: The compensation system comprises: An environmental temperature and humidity monitoring device is used to measure the temperature and humidity of the working environment, obtain the temperature data of the surface of the aircraft parts, calculate the deviation between the environmental temperature and the surface temperature of the parts, monitor the constant temperature state of the parts, and provide the measurement data temperature compensation value to the measurement software when the parts are in the constant temperature state; Parts temperature monitoring device, used to measure the temperature of the aircraft parts surface.

2. The compensation system according to claim 1, characterized in that: The environmental temperature and humidity monitoring device comprises: A first single-chip microcomputer, wherein the first single-chip microcomputer is connected to the temperature and humidity sensor, the memory, the clock module, and the first communication module; The first single-chip microcomputer is used to obtain the ambient temperature and humidity in real time from the temperature and humidity sensor, obtain the temperature of the surface of the part in real time from the first communication module, and then automatically calculate the deviation between the ambient temperature and the surface temperature of the part, monitor the ambient temperature change and the constant temperature state of the part, and provide the temperature compensation value of the measurement data for the temperature monitoring and measurement data compensation software when the part is in the constant temperature state; The temperature and humidity sensor is connected to the first single-chip microcomputer, and is used to measure the ambient temperature and humidity.

3. The compensation system according to claim 2, characterized in that: The environmental temperature and humidity monitoring device also includes: A clock module, connected to the first single-chip microcomputer, and used to measure the current time; The memory is connected to the first single-chip computer, and is used to store environmental temperature and humidity, part surface temperature, and temperature compensation data in real time.

4. The compensation system according to claim 3, characterized in that: The environmental temperature and humidity monitoring device also includes: The first wireless communication module is connected to the first single-chip computer, and the first wireless communication module is used to obtain the temperature of the surface of the aircraft part.

5. The compensation system according to claim 1, characterized in that: The parts temperature monitoring device comprises: A temperature sensor is connected to the second single-chip microcomputer, and the temperature sensor is used to collect the surface temperature of the part; A second wireless communication module is connected to the second single-chip microcomputer, and the second wireless communication module is used to send the measured temperature data of the parts and receive the ambient temperature and the constant temperature state data of the parts; The second single-chip microcomputer is connected to the temperature sensor and the second communication module. The second single-chip microcomputer is used for collecting the temperature of the parts, sending and receiving data, and displaying the constant temperature status of the parts.

6. A method for temperature compensation of coordinate measurement data of aircraft parts, characterized in that: The method comprises the following steps: Step 1. According to the ambient temperature and humidity control range, the ambient temperature and humidity monitoring device automatically monitors the ambient temperature and humidity; when the measured ambient temperature exceeds the measurement range, the system automatically triggers the part measurement software to stop measuring; when the ambient temperature exceeds the maximum control range, the ambient status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green; Step 2. According to the constant temperature control requirements of the parts, the part temperature monitoring device automatically monitors the changes in the surface temperature of the parts. When the surface temperature of the parts exceeds the control range, the system automatically triggers the part measurement software to stop measuring; when the ambient temperature exceeds the maximum control range, the constant temperature status light is displayed in red; when it is lower than the maximum control range, it is displayed in blue; when it is within the control range, it is displayed in green; Step 3: According to the requirements for ambient temperature fluctuation control, when the ambient temperature fluctuation automatically monitored by the ambient temperature and humidity monitoring device exceeds the maximum value, the system automatically triggers the part measurement software to stop measuring, the ambient status light turns orange, and an alarm is sounded through the voice broadcast module until the ambient temperature meets the requirements; Step 4: The environmental temperature and humidity monitoring device is automatically connected to the part temperature monitoring device to monitor and analyze the environmental temperature and part temperature in real time to ensure that the part is measured under a constant temperature state; Step 5. During the part measurement process, when the ambient temperature and part temperature are within the control range and the part is in a constant temperature state, the temperature monitoring and measurement data compensation software automatically compensates the part measurement coordinate value according to the part material and the current part temperature average value until the part measurement is completed.

7. The method according to claim 6, characterized in that The step 4 also includes: When the part temperature exceeds the control range, the system automatically triggers the part measurement software to stop measuring, the constant temperature status light turns orange, and an alarm is sounded through the voice broadcast module until the part temperature meets the constant temperature requirements.

8. The method according to claim 6, characterized in that The step 5 also includes: When the ambient temperature and part temperature change beyond the control range, the system automatically triggers the part measurement software to stop measuring, and issues an alarm reminder through the ambient status light, constant temperature status light and voice broadcast module.

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