A multi-point step difference measurement system

Abstract

This invention discloses a multi-point step difference measurement system, relating to the field of step difference measurement technology. The multi-point step difference measurement system includes: a housing, a measurement host, and a base plate; wherein the measurement host is embedded within a frame formed by the housing and the base plate; the housing includes a mode selection switch; the base plate includes a step difference measurement reference platform and laser measurement windows; each laser measurement window is equipped with a laser sensor; the step difference measurement reference platform provides space for the device under test; when the measurement host detects that the mode selection switch is in the first position, the multi-point step difference measurement system enters the measurement mode; the laser sensors perform step difference measurement on the device under test through the laser measurement windows to obtain the corresponding actual step difference measurement value, and the measurement host collects the corresponding actual step difference measurement value according to the system's current posture and preset measurement activation conditions, reducing the human influence in the step difference measurement process, improving measurement efficiency, ensuring measurement quality, and achieving high-precision, multi-point step difference measurement.

Description

Technical Field

[0001] This invention relates to the field of step difference measurement technology, and in particular to a multi-point step difference measurement system. Background Technology

[0002] An angle-of-attack sensor is installed on the aircraft skin. The angle-of-attack sensor is mounted on a base, which is ideally flush with the skin surface. However, during installation, there is usually a step difference between the base and the skin. For the installation of the angle-of-attack sensor base, it is necessary to measure the step difference between the base and the skin at multiple points around the base.

[0003] Currently, the measurement of step difference is mostly carried out using single-point measuring instruments such as depth gauges, which measure multiple times at multiple points and record the data separately each time.

[0004] However, existing measurement methods suffer from problems such as rudimentary measuring tools, significant human influence, low measurement efficiency, and cumbersome data recording. Summary of the Invention

[0005] This invention provides a multi-point step difference measurement system to solve the problems of large human influence and low measurement efficiency in the step difference measurement process, reduce the human influence in the step difference measurement process, improve measurement efficiency, ensure measurement quality, and realize high-precision, multi-point step difference measurement.

[0006] According to one aspect of the present invention, a multi-point position step difference measurement system is provided, comprising:

[0007] The system comprises a housing, a measurement host, and a base plate; the measurement host is embedded within the frame formed by the housing and the base plate; the housing includes a mode selection switch; the base plate includes a step difference measurement reference platform and laser measurement windows; each laser measurement window is equipped with a laser sensor; the step difference measurement reference platform provides space for the device under test.

[0008] When the measurement host detects that the mode selection switch is in the first position, the multi-point step difference measurement system enters the measurement mode.

[0009] The laser sensor measures the step difference of the device under test through the laser measurement window, obtains the corresponding actual step difference measurement value, and the measurement host collects the corresponding actual step difference measurement value according to the current attitude of the multi-point step difference measurement system and the preset measurement activation conditions.

[0010] According to the technical solution of the present invention, a multi-point step difference measurement system composed of a shell, a measurement host, and a base plate is provided. The measurement host is embedded in the frame formed by the shell and the base plate. The shell includes a mode selection switch, and the base plate includes a step difference measurement reference platform and a laser measurement window. Each laser measurement window is equipped with a laser sensor. The step difference measurement reference platform provides a space for the device under test and plays a role in obstacle avoidance. When the measurement host detects that the mode selection switch is in the first switch, it enters the measurement mode. The laser sensor performs step difference measurement on the device under test through the laser measurement window to obtain the corresponding actual step difference measurement value. The measurement host collects the corresponding actual step difference measurement value according to the current posture of the system and the preset measurement activation conditions. This solves the problems of large human influence and low measurement efficiency in the step difference measurement process, reduces human influence in the measurement process, improves measurement efficiency, ensures measurement quality, and realizes high-precision and multi-point step difference measurement.

[0011] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a multi-point position step difference measurement system provided in an embodiment of the present invention;

[0014] Figure 2 A schematic diagram showing the angle between a multi-point step difference measurement system, the device under test, and its own rotation, provided in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram showing the effective indicator light of a measurement group pointing upwards, provided in an embodiment of the present invention.

[0016] Figure 4 This is a schematic diagram of a complete multi-point position difference measurement system provided in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the top plate of a multi-point step difference measurement system provided in an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of the base plate of a multi-point step difference measurement system provided in an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram illustrating a multi-point step difference measurement system using an avoidance window to avoid protrusions on the device under test, provided by an embodiment of the present invention.

[0020] Figure 8 This is a schematic diagram of a measurement system on a remote terminal provided in an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the casing of a multi-point position step difference measurement system provided in an embodiment of the present invention;

[0022] Figure 10 This is a schematic diagram of a measurement system on a remote terminal in error measurement mode, provided by an embodiment of the present invention.

[0023] Figure 11 This is a flowchart illustrating a method for using a multi-point position difference measurement system, as provided in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 11. Housing; 12. Measuring host; 13. Base plate; 14. Step difference measurement reference platform; 15. Mode selection switch; 16. Laser sensor; 17. Laser measurement window; 18. Top plate; 19. Power supply battery; 20. Communication module; 31. Measurement group valid indicator light; 51. First valid indicator light; 52. Second valid indicator light; 53. Fault indicator light; 54. Battery indicator light; 55. Handle; 56. System power button; 61. Clearance window; 62. Mounting holes; 91. USB interface; 92. Mode selection switch. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In one embodiment, Figure 1 This is a schematic diagram of a multi-point step difference measurement system provided in an embodiment of the present invention. This embodiment is applicable to measuring the step difference value between the mounting base of equipment such as aircraft angle of attack sensors and the aircraft skin. It should be noted that the multi-point step difference measurement system may include multiple laser measurement windows, i.e., multiple laser sensors. For example, taking a multi-point step difference measurement system including four laser sensors (i.e., laser sensor 1, laser sensor 2, laser sensor 3, and laser sensor 4) and four laser sensor windows (i.e., laser sensor window 1, laser sensor window 2, laser sensor window 3, and laser sensor window 4) as an example, the structure of the multi-point step difference measurement system will be described.

[0029] like Figure 1 As shown, the multi-point position difference measurement system provided in this embodiment may include:

[0030] The device comprises a housing 11, a measuring host 12, and a base plate 13; wherein the measuring host 12 is embedded within the frame formed by the housing 11 and the base plate 13; the housing 11 includes a mode selection switch 15; the base plate 13 includes a step difference measurement reference platform 14 and a laser measurement window 17; each laser measurement window 17 is equipped with a laser sensor 16; the step difference measurement reference platform 14 provides space for accommodating the device under test;

[0031] Specifically, the multi-point step difference measurement system may include a housing, a measurement host, and a base plate. The housing may include a cylindrical external structure of the system made of materials such as plastic and resin. The base plate may include a circular bottom structure of the system made of materials such as plastic and resin. The measurement host may include devices such as laser sensors and circuit lines.

[0032] Furthermore, the measurement host can be embedded within the frame formed by the housing and the base plate. The shape of the measurement host can be circular. The housing can include a mode selection switch, which can include an N-position and a C-position. The N-position is the normal working mode of the multi-point step difference measurement system, and the C-position is the calibration mode of the multi-point step difference measurement system. The base plate can include a step difference measurement reference platform and a laser measurement window. Each laser measurement window can be configured with a laser sensor. The laser sensor can perform step difference measurement on the device under test through the laser measurement window. The step difference measurement reference platform and the base plate can be set as concentric circles. The step difference measurement reference platform can provide space for the device under test, fix the device under test, and play a role in obstacle avoidance, facilitating step difference measurement.

[0033] When the measurement host detects that the mode selection switch is in the first position, the multi-point step difference measurement system enters the measurement mode.

[0034] Specifically, when the measuring host detects that the mode selection switch on the casing is in the first position, the multi-point step difference measurement system can enter the measurement mode. The first switch can be in the N position, that is, the multi-point step difference measurement system is in the normal working mode.

[0035] The laser sensor measures the step difference of the device under test through the laser measurement window, obtains the corresponding actual step difference measurement value, and the measurement host collects the corresponding actual step difference measurement value according to the current attitude of the multi-point step difference measurement system and the preset measurement activation conditions.

[0036] In this embodiment, the current attitude of the multi-point step difference measurement system may include the angle between the multi-point step difference measurement system and the device under test and its own rotation when performing step difference measurement. Figure 2 This is a schematic diagram illustrating the angle between a multi-point step difference measurement system, the device under test, and its own rotation, provided in an embodiment of the present invention. It can show the roll and pitch angles, such as... Figure 2 As shown, it can include the roll angle of its own rotation and the pitch angle between itself and the device under test; the preset measurement activation conditions can include the conditions required for the multi-point step difference measurement system to start step difference measurement in advance according to the actual situation, including whether the measurement validity indicator is turned on and whether the current attitude of the multi-point step difference measurement system is within the specified range; the actual step difference measurement value can include the step difference measurement value between the system and the device under test obtained when the current attitude of the multi-point step difference measurement system is within the specified range and the laser sensor group is working normally.

[0037] Specifically, when the multi-point step difference measurement system can enter the measurement mode, the laser sensor located on the measurement host can emit laser pulses through the laser measurement window on the base plate to measure the step difference of the device under test and obtain the corresponding actual step difference measurement value. The measurement host can also collect the corresponding actual step difference measurement value according to the current attitude of the multi-point step difference measurement system and the conditions required for the multi-point step difference measurement system to start step difference measurement in advance according to the actual situation. The current attitude of the multi-point step difference measurement system can include the roll angle of the system's own rotation and the pitch angle between the system and the device under test.

[0038] Based on the above embodiments, the preset measurement activation conditions include: a first measurement activation condition and a second measurement activation condition; the measurement host collects the corresponding actual step difference measurement values ​​according to the current attitude of the multi-point step difference measurement system and the preset measurement activation conditions, including:

[0039] When the current attitude of the multi-point step difference measurement system meets the first measurement activation condition of the first measurement group, the actual step difference measurement value corresponding to the first group measurement position of the device under test is collected by the measurement host.

[0040] In this embodiment, the first measurement group may include four laser sensors, which are respectively located at corresponding positions in the laser measurement window in the base plate; the first measurement position may include corresponding positions of 0 degrees, 90 degrees, 180 degrees and 270 degrees in the circular area between the multi-point step difference measurement system and the measured device; the first measurement activation condition may include the conditions required for the first measurement group in the multi-point step difference measurement system to start step difference measurement, which may include whether the effective indicator light of the first measurement group is turned on and whether the current attitude of the multi-point step difference measurement system is within the specified range.

[0041] Specifically, the preset measurement activation conditions of the multi-point step difference measurement system can include a first measurement activation condition and a second measurement activation condition. This can determine whether the first and second measurement groups can perform normal measurements. The measurement host can collect the corresponding actual step difference measurement values ​​based on the angle between the multi-point step difference measurement system and the device under test, as well as its own rotation, and the conditions required for the multi-point step difference measurement system to start step difference measurement in advance according to the actual situation. For example, when the current posture of the multi-point step difference measurement system meets the conditions required for the first measurement group of the first measurement group to start step difference measurement, the measurement host can collect the actual step difference measurement values ​​corresponding to the first measurement position of the device under test. The current posture of the multi-point step difference measurement system can include the angle between the multi-point step difference measurement system and the device under test, as well as its own rotation, during step difference measurement. The first measurement position can include the corresponding positions of 0 degrees, 90 degrees, 180 degrees, and 270 degrees in the circular area between the multi-point step difference measurement system and the device under test.

[0042] When the current attitude of the multi-point step difference measurement system meets the second measurement activation condition of the second measurement group, the actual step difference measurement value corresponding to the second group measurement position of the device under test is collected by the measurement host.

[0043] In this embodiment, the second measurement group may include four laser sensors, which are respectively located at corresponding positions in the laser measurement window in the base plate; the first measurement position may include corresponding positions at 45 degrees, 135 degrees, 225 degrees and 315 degrees in the circular area between the multi-point step difference measurement system and the measured device; the second measurement activation condition may include the conditions required for the second measurement group in the multi-point step difference measurement system to start step difference measurement, which may include whether the effective indicator light of the second measurement group is turned on and whether the current attitude of the multi-point step difference measurement system is within the specified range.

[0044] Specifically, when the current attitude of the multi-point step difference measurement system meets the conditions required for the second measurement group to start step difference measurement, the actual step difference measurement value corresponding to the second measurement position of the device under test can be collected by the measurement host. The current attitude of the multi-point step difference measurement system can include the angle between the multi-point step difference measurement system and the device under test and its own rotation when performing step difference measurement. The second measurement position can include the corresponding positions of 45 degrees, 135 degrees, 225 degrees and 315 degrees in the circular area between the multi-point step difference measurement system and the device under test.

[0045] Based on the above embodiments, the multi-point step difference measurement system further includes: a top plate 18; wherein, the top plate 18 includes: a first effective indicator light 51 and a second effective indicator light 52; the first effective indicator light is used to indicate the effective status and positioning marks of the first measurement group; the second effective indicator light is used to indicate the effective status and positioning marks of the second measurement group;

[0046] In this embodiment, the first valid indicator light may include a flag indicating that the first measurement group can perform normal step difference measurement. When the first measurement group can perform normal step difference measurement, the first valid indicator light is lit. The second valid indicator light may include a flag indicating that the second measurement group can perform normal step difference measurement. When the second measurement group can perform normal step difference measurement, the second valid indicator light is lit. The angle between the first valid indicator light and the second valid indicator light is 45 degrees. Figure 3 This is a schematic diagram of the effective indicator light for a measurement group pointing upwards, provided as an embodiment of the present invention. It illustrates that the effective indicator light for the measurement group points upwards relative to a horizontal surface. Figure 3 As shown, the positioning markers for the effective indicator lights of the measurement group may include whether the first and second effective indicator lights are pointing upwards relative to the horizontal ground.

[0047] Specifically, Figure 4This is a schematic diagram of a complete multi-point step difference measurement system provided in an embodiment of the present invention, specifically illustrating the various parts of the multi-point step difference measurement system, such as... Figure 4 As shown, the multi-point step difference measurement system also includes a top plate, and further... Figure 5 This is a schematic diagram of the top plate of a multi-point step difference measurement system provided in an embodiment of the present invention, which can show various parts of the top plate, such as... Figure 5 As shown, the top plate may include a first valid indicator light and a second valid indicator light. The first valid indicator light can be used to indicate the validity of the first measurement group's normal step difference measurement and to determine whether the first valid indicator light is pointing upwards, i.e., the positioning mark of the first valid indicator light; the second valid indicator light can be used to indicate the validity of the second measurement group's normal step difference measurement and to determine whether the second valid indicator light is pointing upwards, i.e., the positioning mark of the second valid indicator light.

[0048] Accordingly, the first measurement activation conditions include: the first valid indicator light is facing upward relative to the horizontal ground, and the roll angle of the multi-point step difference measurement system is within ±5 degrees and the pitch angle is within 30 degrees.

[0049] Specifically, as shown in the figure, the activation conditions for the first measurement group to perform step difference measurement normally may include: the first valid indicator light is facing upward relative to the horizontal ground, and the roll angle of the multi-point step difference measurement system itself is within ±5 degrees with the position perpendicular to the horizontal ground as 0 degrees, and the pitch angle between the system and the device under test is within 30 degrees.

[0050] The second measurement activation conditions include: the second effective indicator light is facing upward relative to the horizontal ground, and the position of the second effective indicator light perpendicular to the horizontal ground is -45 degrees, the roll angle of the multi-point step difference measurement system is within -50 to -40 degrees, and the pitch angle is within 30 degrees.

[0051] Specifically, as shown in the figure, the activation conditions for the second measurement group to perform step difference measurement normally may include: the second effective indicator light is facing upward relative to the horizontal ground, and the position of the second effective indicator light perpendicular to the horizontal ground is -45 degrees, the roll angle of the multi-point step difference measurement system itself is within -50 to -40 degrees, and the pitch angle between the system and the device under test is within 30 degrees.

[0052] Based on the above embodiments, the base plate of the multi-point step difference measurement system further includes: an avoidance window 61 and a mounting hole 62;

[0053] The clearance window is used to allow the protrusions of the device under test to extend into the interior of the multi-point step difference measurement system; the mounting holes are used to fix the top plate, outer shell, measuring host and base plate into a single device by means of fasteners.

[0054] In this embodiment, the avoidance window may include a recessed portion in the base plate of the multi-point step difference measurement system.

[0055] Specifically, Figure 6 This is a schematic diagram of the base plate of a multi-point step difference measurement system provided in an embodiment of the present invention, which can show various parts of the base plate, such as... Figure 6 As shown, the base plate of the multi-point step difference measurement system may also include clearance windows and mounting holes. Furthermore, Figure 7 This is a schematic diagram illustrating a multi-point step difference measurement system using an avoidance window to avoid protrusions on the device under test, as provided in an embodiment of the present invention. Figure 7 As shown, the clearance window can be used to allow the protrusions of the device under test to extend into the interior of the multi-point step difference measurement system for convenient measurement; the mounting holes can be used to fix the top plate, housing, measuring host and base plate into a single device by means of fasteners, which may include screws and rivets.

[0056] The technical solution provided by this invention uses a multi-point step difference measurement system comprising a housing, a measurement host, and a base plate to measure the step difference between the device under test (DUT) and the device. The measurement host is embedded within the frame formed by the housing and base plate. The housing has a mode selection switch for easy user activation of the system. The base plate includes a step difference measurement reference platform and laser measurement windows. Each laser measurement window is equipped with a laser sensor, facilitating the emission of laser pulses to measure the step difference. The DUT is embedded in the step difference measurement reference platform, which can fix the DUT in place, making the system measurement process more stable and improving the accuracy of the measurement results. When the mode selection switch is in the first position, the system enters the measurement mode. The laser sensor measures the step difference of the DUT through the laser measurement windows, obtaining the corresponding actual step difference measurement value. The system also acquires the corresponding actual step difference measurement value based on the current posture of the system and preset measurement activation conditions. This solves the problems of significant human influence and low measurement efficiency in the step difference measurement process, reduces human influence during measurement, improves measurement efficiency, ensures measurement quality, and achieves high-precision, multi-point step difference measurement.

[0057] Based on the above embodiments, when the measurement host detects that the mode selection switch is in the second switch, the multi-point position difference measurement system enters the calibration mode;

[0058] Specifically, when the measurement host detects that the mode selection switch on the casing is in the second position, the multi-point step difference measurement system can enter the calibration mode. The second switch can be set to C to indicate that the multi-point step difference measurement system is in calibration mode.

[0059] The calibration platform is started to perform a benchmark measurement on each laser sensor to obtain the corresponding actual benchmark measurement value. After the actual benchmark measurement value reaches the preset benchmark measurement value, the measurement position is zeroed and the zero value is saved to complete the calibration and measurement operation.

[0060] In this embodiment, the actual reference measurement value may include the measurement value of each laser sensor in the measurement host obtained by using a standard feeler gauge on the calibration platform when the multi-point step difference measurement system is in calibration mode, with the step difference measurement reference platform as the 0mm position, adjusting the feeler gauge in 0.5mm increments from -1.0mm to 2.0mm, referring to the working steps of the normal working mode; the preset reference measurement value may include the actual reference measurement value set according to the actual situation, where the difference between the actual reference measurement value and the standard plane is within the error range.

[0061] Specifically, after the multi-point step difference measurement system enters the calibration mode, the calibration platform can be started to perform benchmark measurements on each laser sensor in the measurement host to obtain the corresponding actual benchmark measurement value. The calibration platform can be provided by a formal calibration institution. After the actual benchmark measurement value reaches the actual benchmark measurement value set according to the actual situation and the difference between the actual benchmark measurement value and the standard plane is within the error range, the zeroing operation is performed on each measurement position and the zero value is saved to complete the calibration and metrology operation of the multi-point step difference measurement system, so as to facilitate the subsequent step difference measurement operation of the multi-point step difference measurement system.

[0062] Based on the above embodiments, the top plate of the multi-point step difference measurement system also includes: a fault indicator light 53 and a battery indicator light 54; the measurement host also includes: a power supply battery 19;

[0063] The power supply battery provides the necessary power for the multi-point step difference measurement system to operate normally;

[0064] The fault indicator light is used to indicate the activation failure status of the first and second measurement groups;

[0065] The battery indicator light is used to indicate the charging and discharging status of the power supply battery.

[0066] In this embodiment, the fault indicator light may include a flag indicating whether the first measurement group and the second measurement group have been successfully activated. If the measurement group does not meet the activation conditions, the measurement group activation fails, and the fault indicator light illuminates. For example, when the pitch angle between the first measurement group and the device under test is greater than 30 degrees, the activation conditions of the first measurement group are not met, and the fault indicator light illuminates. The battery indicator light may include a flag indicating the working status of the battery of the multi-point step difference measurement system. The illumination status can be controlled by the measurement host. For example, when the multi-point step difference measurement system is charging, the green light of the battery indicator light flashes; when fully charged, the green light remains on; when discharging, the red light remains on; and a flashing red light indicates that the battery power is insufficient.

[0067] Specifically, such as Figure 5 As shown, the top plate of the multi-point step difference measurement system may also include a fault indicator light and a battery indicator light. The fault indicator light can be used to indicate the activation failure status of the first and second measurement groups in the multi-point step difference measurement system. When the measurement group does not meet the activation conditions, the measurement group activation fails, and the fault indicator light illuminates. The battery indicator light can be used to indicate the charging and discharging status of the power supply battery in the multi-point step difference measurement system, and the lighting status can be controlled by the measurement host. Figure 4 As shown, the measurement host may also include a power supply battery, which can provide power for normal step difference measurement of the multi-point step difference measurement system.

[0068] Based on the above embodiments, the measurement host of the multi-point step difference measurement system further includes: a communication module 20;

[0069] Specifically, a communication module is used to establish a communication connection between the multi-point step difference measurement system and the remote terminal, so as to transmit the actual step difference measurement value obtained by the multi-point step difference measurement system to the remote terminal.

[0070] In this embodiment, the remote terminal may include a device that can browse measurement results and save screenshots of the measurement results when the multi-point step difference measurement system is in normal step difference measurement, and may include devices such as laptops, tablets, and mobile phones; the communication module may be the part of the measurement host of the multi-point step difference measurement system that performs communication operations between the system and the remote terminal, and may include a WIFI wireless module.

[0071] Specifically, such as Figure 4 As shown, the measurement host of the multi-point step difference measurement system can also include a communication module. Furthermore, the communication module can establish a communication connection between the multi-point step difference measurement system and a remote terminal. This connection can be established via Wi-Fi. After the connection is established, the actual step difference measurement values ​​obtained by the multi-point step difference measurement system can be transmitted to the remote terminal. Figure 8 This is a schematic diagram of a measurement system on a remote terminal provided in an embodiment of the present invention. The program includes a screenshot saving button, such as... Figure 8 As shown, you can browse measurement results and save screenshots of the measurement results on a remote terminal.

[0072] Based on the above embodiments, the housing of the multi-point step difference measurement system further includes a USB interface 91; wherein the USB interface 91 is used to provide charging, program upgrade and program debugging functions.

[0073] In this embodiment, program upgrades may include the process of optimizing the functions of the program used for displaying measurement results on the remote terminal, which may include adding other numerical columns to the program and beautifying the program page; program debugging may include the process of testing the functions of the program used for displaying measurement results on the remote terminal.

[0074] Specifically, Figure 9 This is a schematic diagram of the casing of a multi-point step difference measurement system provided in an embodiment of the present invention, which can show various parts of the casing, such as... Figure 9 As shown, the housing of the multi-point step difference measurement system may also include a USB interface, which can be located next to the mode selection switch 92. Furthermore, the USB interface can be used to plug in a power source to charge the multi-point step difference measurement system, as well as to connect to a remote terminal for upgrading and debugging the program that displays the measurement results in the remote terminal.

[0075] Based on the above embodiments, when the multi-point step difference measurement system adopts the error measurement mode, the measurement result determined by the remote terminal based on the actual step difference measurement value includes one of the following: normal measurement value, exceeding the range, and communication error.

[0076] In this embodiment, Figure 10 This is a schematic diagram of a measurement system display on a remote terminal in error measurement mode, provided by an embodiment of the present invention. The measurement system on the remote terminal has an error setting button, such as... Figure 10 As shown, the error measurement mode may include setting an allowable error in the remote terminal to determine whether the actual step difference measurement value obtained by the system is within the allowable error range, and then displaying the system measurement result; the measurement result exceeding the range may include the actual step difference measurement value obtained exceeding the system's measurement range; the measurement result communication error may include an error occurring in the communication module of the measurement host when establishing a connection with the remote terminal.

[0077] Specifically, such as Figure 10As shown, when the multi-point step difference measurement system adopts the error measurement mode, the measurement result determined by the remote terminal based on the actual step difference measurement value obtained by the system measurement can include one of the following: normal measurement value, exceeding the range, and communication error. This can be used to describe whether the multi-point step difference measurement system has measured a normal step difference measurement value, whether the measurement value exceeds the normal measurement range of the system, and whether the communication between the system and the remote terminal is normal.

[0078] Based on the above embodiments, the multi-point step difference measurement system includes at least four laser measurement windows; correspondingly, the multi-point step difference measurement system includes at least four laser sensors.

[0079] Specifically, a multi-point step difference measurement system can include at least four laser measurement windows. One laser sensor emits laser pulses to the device under test through the laser measurement window. Accordingly, a multi-point step difference measurement system can include at least four laser sensors.

[0080] In one embodiment, Figure 11 This is a flowchart of a method for using a multi-point step difference measurement system provided in an embodiment of the present invention. Based on the above embodiments, this embodiment is a preferred embodiment, and further optimizes and expands the specific usage process of the multi-point step difference measurement system with reference to the specific structure of the multi-point step difference measurement system.

[0081] like Figure 11 As shown, the method of using the multi-point step difference measurement system provided in this embodiment may include:

[0082] S110. Lift the handle, adjust the mode selection switch, and switch it to N (right side) to select the normal operating mode of the system.

[0083] Specifically, such as Figure 5 As shown, there is also a handle 55 on the top plate of the multi-point step difference measurement system, which is convenient for users to operate. The handle installed on the top plate of the multi-point step difference measurement system can be lifted to adjust the mode selection switch on the system shell. The switch is turned to the N position, which is the right side, to select the normal working mode of the system.

[0084] S120. Press the system power button and check that the battery charge / discharge indicator light is constantly red (the battery is fully charged).

[0085] Specifically, such as Figure 5As shown, there is also a system power button 56 on the top plate of the multi-point step difference measurement system. After the multi-point step difference measurement system is in normal working mode, you can press the system power button on the top plate of the multi-point step difference measurement system to check the battery charging and discharging indicator light on the top plate of the multi-point step difference measurement system. That is, whether the battery indicator light is constantly red, it means that the battery power of the multi-point step difference measurement system is sufficient and can perform step difference measurement work normally.

[0086] S130. Observe the valid indicator light of measurement group 1, the valid indicator light of measurement group 2, and the sensor fault indicator light. After they flash once, they turn off. Wait 15 seconds and observe that the sensor fault indicator light does not flash. The system is working normally.

[0087] Specifically, you can observe that the valid indicator lights for measurement group 1, measurement group 2, and sensor fault indicator lights on the top plate of the multi-point step difference measurement system flash once and then turn off. After waiting for 15 seconds, observe that the sensor fault indicator light does not flash, indicating that the system can work normally. The valid indicator light for measurement group 1 is the first valid indicator light, the valid indicator light for measurement group 2 is the second valid indicator light, and the sensor fault indicator light is the fault indicator light.

[0088] S140. Remote terminal login system wireless network, open browser to log in to web-based measurement system software.

[0089] Specifically, a communication connection can be established between the multi-point step difference measurement system and the remote terminal by logging into the system's wireless network through a remote terminal. The remote terminal can open a browser to log into the web-based measurement system software and view the measurement results in the software. The remote terminal can include devices such as laptops, tablets, and mobile phones.

[0090] S150, Start Measurement. The system uses 4 laser sensors, each installed at a 90-degree interval. The measurement of 8 points is completed by taking two measurements at a 45-degree interval. Select measurement group 1 for measurement and click the measurement button. Select measurement group 2 for measurement and click the measurement button. Complete the measurement and save the image.

[0091] Specifically, after the multi-point step difference measurement system is functioning normally and has established a communication connection with the remote terminal, the system can begin step difference measurement. The system uses four laser sensors, each installed at a 90-degree interval, which can comprehensively cover the measurement area of ​​the device under test. After one measurement, a second measurement can be performed by rotating the handheld multi-point step difference measurement system 45 degrees. By performing two measurements at 45-degree intervals, the measurement requirements of eight points within the measurement area of ​​the device under test can be met. Figure 10As shown, the measurement system software on the remote terminal has a measurement button and a screenshot save button. You can select measurement group 1 or 2 to perform the measurement, and click the corresponding measurement button to get the measurement result. You can save the current measurement result page by clicking the screenshot save button for easy review later.

[0092] S160, Power off and shut down.

[0093] Specifically, after completing the measurement and saving the measurement results, you can press the system power button on the top panel of the multi-point step difference measurement system to power off the system.

[0094] The technical solution provided by this invention involves a handheld multi-point step difference measurement system. By adjusting the mode selection switch to enter normal operating mode, pressing the system power button, checking the system battery level, and observing the effective indicator lights of the measurement group, the system can be judged to be working properly. A remote terminal can log into the system's wireless network and access the web-based measurement system software via a browser. This allows for visualization of measurement results and the saving of screenshots for later review. The handheld system completes the measurement of eight points through two measurements at 45-degree intervals, obtaining the measurement results. This solves the problems of cumbersome user operation, complicated result recording, and low measurement efficiency in step difference measurement. It simplifies user operation, improves measurement efficiency, and simplifies result recording, achieving high-precision, multi-point, and easy-to-record step difference measurement.

[0095] The multi-point step difference measurement system method provided in this embodiment can execute any multi-point step difference measurement system provided in this invention embodiment, and has the corresponding functional modules and beneficial effects of the execution system. Content not described in detail in this embodiment can be referred to the description in any system embodiment of this invention.

[0096] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0097] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A multi-point position step difference measurement system, characterized in that, include: The device comprises a housing, a measuring host, and a base plate; wherein the measuring host is embedded within a frame formed by the housing and the base plate; the housing includes a mode selection switch; the base plate includes a step difference measurement reference platform and laser measurement windows; each laser measurement window is equipped with a laser sensor; the step difference measurement reference platform provides space for the device under test; When the measurement host detects that the mode selection switch is in the first switch, the multi-point step difference measurement system enters the measurement mode. The laser sensor performs step difference measurement on the device under test through the laser measurement window to obtain the corresponding actual step difference measurement value, and the measurement host collects the corresponding actual step difference measurement value according to the current attitude of the multi-point step difference measurement system and the preset measurement activation conditions. The preset measurement activation conditions include: a first measurement activation condition and a second measurement activation condition; the measurement host collects the corresponding actual step difference measurement values ​​based on the current attitude of the multi-point step difference measurement system and the preset measurement activation conditions, including: When the current attitude of the multi-point step difference measurement system meets the first measurement activation condition of the first measurement group, the actual step difference measurement value corresponding to the first group measurement position of the device under test is collected by the measurement host. When the current attitude of the multi-point step difference measurement system meets the second measurement activation condition of the second measurement group, the actual step difference measurement value corresponding to the second group measurement position of the device under test is collected by the measurement host. The multi-point step difference measurement system further includes: a top plate; wherein the top plate includes: a first valid indicator light and a second valid indicator light; the first valid indicator light is used to indicate the validity status and positioning marks of the first measurement group; the second valid indicator light is used to indicate the validity status and positioning marks of the second measurement group; Accordingly, the first measurement activation conditions include: the first valid indicator light is facing upward relative to the horizontal ground, and the roll angle of the multi-point step difference measurement system is within ±5 degrees and the pitch angle is within 30 degrees. The second measurement activation conditions include: the second effective indicator light is facing upward relative to the horizontal ground, and with the position of the second effective indicator light perpendicular to the horizontal ground being -45 degrees, the roll angle of the multi-point step difference measurement system is within -50 to -40 degrees, and the pitch angle is within 30 degrees.

2. The multi-point position step difference measurement system according to claim 1, characterized in that, When the measurement host detects that the mode selection switch is in the second switch position, the multi-point step difference measurement system enters the calibration mode. The calibration platform is activated to perform a benchmark measurement on each of the laser sensors, and the corresponding actual benchmark measurement value is obtained. After the actual reference measurement value reaches the preset reference measurement value, a zeroing operation is performed on each measurement position and the zero value is saved to complete the calibration measurement operation.

3. The multi-point position step difference measurement system according to claim 1, characterized in that, The top plate also includes: a fault indicator light and a battery indicator light; the measuring host also includes: a power supply battery; The power supply battery is used to provide the power for the multi-point step difference measurement system to operate normally; The fault indicator light is used to indicate the activation fault status of the first measurement group and the second measurement group; The battery indicator light is used to indicate the charging and discharging status of the power supply battery.

4. The multi-point position step difference measurement system according to claim 1, characterized in that, The measurement host also includes: a communication module; Specifically, the communication module establishes a communication connection between the multi-point step difference measurement system and the remote terminal, so as to transmit the actual step difference measurement value obtained by the multi-point step difference measurement system to the remote terminal.

5. The multi-point position step difference measurement system according to claim 1, characterized in that, The base plate also includes: clearance windows and mounting holes; The clearance window is used to allow the protrusion of the device under test to extend into the interior of the multi-point step difference measurement system; the mounting holes are used to fix the top plate, the outer shell, the measuring host and the bottom plate into a single device by means of fasteners.

6. The multi-point step difference measurement system according to any one of claims 1-5, characterized in that, The housing also includes a USB interface; wherein the USB interface is used to provide charging, program upgrade and program debugging functions.

7. The multi-point position step difference measurement system according to claim 4, characterized in that, When the multi-point step difference measurement system adopts the error measurement mode, the measurement result determined by the remote terminal based on the actual step difference measurement value includes one of the following: normal measurement value, exceeding the range, and communication error.

8. The multi-point step difference measurement system according to any one of claims 1-5, characterized in that, The multi-point step difference measurement system includes at least four laser measurement windows; correspondingly, the multi-point step difference measurement system includes at least four laser sensors.

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