Laser measuring instrument and one-key multi-point measuring method

Abstract

The invention relates to the technical field of building measurement, in particular to a laser measuring instrument and a one-key multi-point measuring method, and the laser measuring instrument comprises double laser distance measuring devices which are vertically and orthogonally distributed; the physical keys comprise a double-end one-key square measurement key for acquiring a distance value in two orthogonal directions in real time; a single-head measurement key and a function switching key; the dynamic area calculation engine multiplies the two distance measurement values and outputs an area result in real time; the embedded display screen is used for displaying the distance value, the area result and the operation guidance in real time; provided is a portable pencil. The space self-adaptive calibration module is used for compensating a measurement error caused by an equipment placement inclination angle; according to the invention, through cooperative work of the vertically and orthogonally distributed double-laser ranging device and the physical key, a user can synchronously obtain the distance value in two orthogonal directions by triggering the double-end key once, so that the risk of reference offset caused by two independent measurements required by traditional equipment is thoroughly avoided, the measurement efficiency is remarkably improved, and the data consistency is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building surveying technology, and in particular to a laser measuring instrument and a one-key multi-point measurement method. BACKGROUND

[0002] Laser ranging equipment is widely used in the fields of building surveying and mapping and indoor decoration, and is mainly used for calculating the size of space. Traditional equipment usually uses a single laser emission module to realize one-dimensional distance measurement. Users need to obtain area derivative data through multiple operations and manual calculation. With the increasing demand for portable measurement, the functional design of laser ranging equipment will directly affect the measurement efficiency and operation experience.

[0003] The current laser range finder needs to obtain the independent distance values of two adjacent sides before performing manual calculation when measuring the area. The operation steps are cumbersome and prone to reference failure due to device displacement. Meanwhile, the placement of the device at an angle will introduce measurement errors. The conventional inclination compensation needs to rely on an external sensor, thereby increasing the hardware cost. Moreover, the multi-mode function switching logic is complex, and non-professional users are prone to misoperation, thereby affecting the reliability of the measurement results.

[0004] Therefore, in view of the above problems, the present application provides a laser measuring instrument and a one-key multi-point measurement method. The double-head one-key measurement square button is used to realize one-key area measurement. The built-in dynamic calibration module eliminates the placement angle error. The data real-time processing unit is fused to complete the rapid measurement of distance and area. SUMMARY

[0005] In order to overcome the problems of low measurement efficiency and insufficient inclination error compensation in the prior art, the present application provides a laser measuring instrument and a one-key multi-point measurement method.

[0006] The technical scheme of the present application is as follows: a laser measuring instrument, comprising:

[0007] Two laser ranging devices vertically and orthogonally distributed, respectively integrated at the front end and the right side end of the device, the two module emission axes being perpendicular to each other, forming a right angle measurement reference;

[0008] A one-key cooperative measurement system, comprising a physical button and a processing unit, the physical button comprising:

[0009] A double-head one-key measurement square button, which synchronously activates the two laser ranging devices upon single triggering, and real-time acquires distance values in two orthogonal directions;

[0010] A single-head measurement button and a function switching button;

[0011] A dynamic area calculation engine, which multiplies the two ranging values and real-time outputs the area result in response to the double-head button triggering signal;

[0012] Embedded display screen, real-time display distance value, area result and operation guide;

[0013] Portable pencil, integrated in the right side of the lower end of the device;

[0014] Space adaptive calibration module, based on double ranging module feedback data, automatically compensates for measurement error caused by device placement angle.

[0015] As preferred, the function switching key realizes mode cycle switching: long press 2 seconds enters volume measurement mode, obtains long, wide and high data through three times of triggering double-headed key, then calculates and displays volume, and short press switches to hypotenuse measurement mode, real-time fusion of double ranging values and calculation of diagonal distance according to Pythagorean theorem.

[0016] As preferred, the dynamic area calculation engine includes real-time data fusion unit and unit intelligent converter, the real-time data fusion unit is used for noise filtering and time stamp synchronization of double laser ranging device data, and the unit intelligent converter is used for automatic switching of m2 / ft 2 Unit according to measurement value range, and high-light display on display screen.

[0017] As preferred, the space adaptive calibration module drives double laser ranging device to emit laser to horizontal reference surface when the device starts, determines the device angle state by comparing whether the difference between two distance values exceeds the threshold value, triggers the screen warning icon and calls the built-in MEMS tilt sensor data to real-time correct the output result if the threshold value is exceeded, and eliminates the error caused by non-horizontal placement.

[0018] As preferred, the portable pencil is embedded in the laser measuring instrument, and is drawn out from the lower end of the laser measuring instrument when used.

[0019] As preferred, the double laser ranging module adopts pulse-phase composite laser technology, realizes ±1mm precision in the range of 0.05-30m, and the optical path systems of the two modules share an embedded optical calibration chip.

[0020] As preferred, the laser measuring instrument further includes an intelligent memory unit: the intelligent memory unit automatically stores the latest 10 groups of measurement data, the user calls the history record list through double-clicking the function switching key, and supports selected multiple data for accumulation or average value calculation.

[0021] As preferred, the display screen supports gesture operation, specifically including: horizontal sliding in the display screen can switch the activation state of the left and right laser ranging devices, and clicking the measurement result can manually convert the unit.

[0022] As preferred, a one-key multi-point measurement method of a laser measuring instrument includes the following steps:

[0023] S1, place the laser measuring instrument in the area to be measured;

[0024] S2, after placing the laser measuring instrument horizontally, trigger the double-head button once to synchronously obtain the orthogonal distance values and calculate the area of the region;

[0025] S3, after the area calculation is completed, switch to the next position for measurement, and after multiple area calculations, the current area value and the historical measurement value are added to obtain the area of the overall region.

[0026] As preferred, when only the distance on one side needs to be measured, the single laser ranging device can be closed or activated through the single-head measurement button or the display screen.

[0027] The beneficial effects of the present application are:

[0028] 1. Through the cooperative work of the vertically orthogonal distributed double laser ranging devices and physical buttons, the user can synchronously obtain the distance values in two orthogonal directions by triggering the double-head button once, thereby completely avoiding the risk of reference deviation caused by the two independent measurements of the traditional equipment, and significantly improving the measurement efficiency and ensuring the data consistency.

[0029] 2. The dynamic area calculation engine outputs the result by multiplying the double ranging values in real time, and automatically switches the unit according to the numerical range and highlights the display on the screen in combination with the unit intelligent converter, thereby eliminating the errors of manual calculation and the omissions of unit conversion, and improving the accuracy of data.

[0030] 3. The space adaptive calibration module automatically detects the non-horizontal placement state and real-time corrects the output value through the fusion analysis of the double ranging module feedback data and the MEMS tilt sensor, and controls the measurement error caused by the tilt within ±1mm. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The overall three-dimensional structure schematic diagram of the present application is shown;

[0032] Figure 2 The internal structure schematic diagram of the present application is shown;

[0033] Figure 3 The workflow structure schematic diagram of the present application is shown.

[0034] Marked: 1, shell; 2, laser ranging hole one; 3, laser ranging hole two; 4, control board; 5, laser ranging head one; 6, laser ranging head two; 7, embedded display screen; 8, button; 9, power on / off button; 10, double-head one-key measurement square button; 11, single-head measurement button; 12, function switching button; 13, portable pencil. DETAILED DESCRIPTION

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] Please refer to Figure 1 and Figure 2 , the present application provides an embodiment: a laser measuring instrument, comprising:

[0037] The two laser ranging devices vertically and orthogonally distributed are respectively integrated at the front end and the right end of the device, the two module emission axes are perpendicular to each other, forming a right angle measurement reference;

[0038] A one-key cooperative measurement system includes a physical button and a processing unit, the physical button includes:

[0039] The double-head one-key measurement square button 10 synchronously activates the double laser ranging devices by single triggering to obtain the distance values in two orthogonal directions in real time;

[0040] The single-head measurement button 11 and the function switching button 12;

[0041] The dynamic area calculation engine multiplies the two ranging values and outputs the area result in real time in response to the double-head button triggering signal;

[0042] The embedded display screen 7 displays the distance value, the area result and the operation instruction in real time;

[0043] The portable pencil 13 is integrated at the right side of the lower end of the device;

[0044] The space self-adaptive calibration module automatically compensates the measurement error caused by the placement angle of the device based on the feedback data of the double ranging modules.

[0045] The laser measuring instrument comprises a shell 1, a laser ranging hole one 2 is formed at the front end of the shell 1, a laser ranging hole two 5 is formed at the right end of the shell 1, a control panel 4 is installed in the shell 1, a laser ranging head one 5 and a laser ranging head two 6 are installed in the shell 1, an embedded display screen 7 is installed at the front end of the control panel 4, four buttons 8 are arranged at the front end of the control panel 4, a power on / off button 9, a double-head one-key measurement square button 10, a single-head measurement button 11 and a function switching button 12 are sequentially installed from top to bottom at the front end of the shell 1, the buttons are all installed on the surface of the button 8, a portable pencil 13 is arranged in the shell 1, and the portable pencil 13 can be pulled out from the lower end of the laser measuring instrument.

[0046] Furthermore, the device is placed at the corner of the area to be measured, and a right-angle measurement benchmark is constructed through a vertically orthogonally distributed dual laser ranging device. After triggering the dual-head one-button measurement square button 10, the two laser modules are activated synchronously, so as to obtain the distance values ​​in two mutually orthogonal directions in real time, wherein the dynamic area calculation engine immediately multiplies the two distance values ​​and outputs the area result, and the embedded display screen 7 synchronously displays the original distance value and the area result. If there is an inclination when the device is placed, the spatial adaptive calibration module automatically compares the feedback data of the dual ranging modules and compensates for the error. Finally, the user can pull out the portable pencil 13 integrated on the lower right side of the device to directly mark the measurement value. The single button triggers the dual laser synchronous measurement, which can avoid the risk of benchmark offset caused by two operations of traditional equipment, and the dynamic area calculation engine can automatically complete the conversion of distance value to area, thereby eliminating the error of manual calculation.

[0047] Furthermore, the user can perform a mode switching operation through the function switch button 12, and long press the button for 2 seconds to activate the volume measurement mode. At this time, the dual-head one-button measurement square button 10 is triggered three times in sequence. The first trigger obtains the length value, the second trigger obtains the width value, and the third trigger obtains the height value. The dynamic area calculation engine automatically multiplies the three sets of data to generate a volume result and displays it on the embedded display screen 7. Short press the function switch button 12 to enter the hypotenuse measurement mode. The dual laser ranging device continues to work, and the two orthogonal direction distance measurement values ​​are input into the Pythagorean theorem algorithm in real time to calculate the distance of the diagonal and refresh the value of the embedded display screen 7. The hypotenuse measurement mode of the present invention replaces the traditional inefficient process of manually measuring the right angle side twice and then calculating by continuously fusing the dual distance measurement values ​​and automatically performing the Pythagorean operation.

[0048] The dynamic area calculation engine includes a real-time data fusion unit and a unit intelligent converter. The real-time data fusion unit is used to implement noise filtering and time stamp synchronization on the data of the dual laser ranging device. The unit intelligent converter is used to automatically switch units according to the measurement value range and highlight them on the display screen.

[0049] Furthermore, after the dynamic area calculation engine is synchronously activated by the dual laser ranging devices, the real-time data fusion unit immediately performs noise filtering on the two ranging signals (suppressing pulse interference and environmental noise) and performs millisecond-level timestamp synchronization, thereby ensuring the temporal and spatial consistency of the input data. The unit intelligent converter then receives the product of the filtered distance values ​​and automatically displays them in m2 units, while highlighting the current unit character on the embedded display screen 7. The present invention eliminates data jumps caused by signal delays or environmental disturbances through real-time noise filtering and time synchronization, thereby ensuring the stability of the area calculation results.

[0050] The space adaptive calibration module drives the double laser ranging device to emit laser to the horizontal reference surface at the start of the device, and determines the device inclination state by comparing whether the difference between the two distance values exceeds the threshold value, and if it exceeds the threshold value, triggers the screen warning icon and calls the built-in MEMS inclination sensor data to correct the output result in real time, eliminating the error caused by non-horizontal placement.

[0051] Further, at the moment of starting the device, the space adaptive calibration module drives the double laser ranging device to emit laser beams to the horizontal reference surface (such as the ground or the desktop) synchronously, collects the distance values L1 and L2 returned by the two ranging modules in real time and calculates the absolute difference |L1-L2|, if the difference exceeds the preset threshold value 5mm, it is determined that the device has an inclination, the screen warning icon is immediately triggered to flash and prompt, and the real-time pitch / roll angle data of the built-in MEMS inclination sensor is called to dynamically compensate the output value of the double laser ranging device by a triangular geometric correction algorithm until |L1-L2|≤5mm, then stop correction and turn off the warning icon.

[0052] The portable pencil 13 is embedded inside the laser measuring instrument, and is pulled out from the lower end of the laser measuring instrument during use.

[0053] Further, the portable pencil 13 is longitudinally embedded in the internal cavity of the right side of the lower end of the laser measuring instrument in a slidable structure, and in the normal state, the portable pencil 13 is hidden in the device shell with only the tail exposed.

[0054] The double laser ranging module adopts pulse-phase composite laser technology to achieve ±1mm accuracy within 0.05-30m range, and the optical systems of the two modules share an embedded optical calibration chip.

[0055] Further, the double laser ranging module adopts pulse-phase composite laser technology when working, and in the 0.05-3m close-range measurement, the phase difference detection mode is mainly used with an accuracy of ±0.5mm, and in the 3-30m long-distance measurement, it is automatically switched to the pulse time-of-flight mode with an accuracy of ±1.5mm, and the optical systems of the two modules realize real-time mutual feedback of the emission angle by sharing an embedded optical calibration chip, and the calibration chip collects the yaw angle data of the double laser beams every 10ms and drives the micro-vibration mirror to adjust the optical axis, so as to ensure that the two emission axes always maintain the orthogonal state of 90°±0.1°.

[0056] The laser measuring instrument also includes an intelligent memory unit: the intelligent memory unit automatically stores the latest 10 groups of measurement data, the user can retrieve the history record list through the double-click function switching key 12, and support selected multiple groups of data for accumulation or average value calculation.

[0057] Further, the intelligent memory unit automatically captures and stores the current measurement result, including the distance value and the area / volume calculation result, after each double-head one-key measurement square button 10 or single-head measurement button 11 is triggered, and the last 10 groups of data are retained.

[0058] The display screen supports gesture operation, specifically including: laterally sliding in the display screen to switch the activation state of the left and right laser ranging devices, and clicking the measurement result to manually convert the unit.

[0059] Please refer to Figure 3 Further, the workflow of the application is described as follows:

[0060] The user starts the device by short pressing the power button 9, the laser measuring instrument emits laser with a horizontal reference surface, the space adaptive calibration module calculates the difference between the two distance values in real time, and if the difference exceeds 5mm, the screen inclination warning icon flashes, and the MEMS sensor data is called to dynamically correct the output value until the difference is less than or equal to 5mm, the warning icon is extinguished, and the measurement reference initialization is completed.

[0061] After calibration, the laser measuring instrument is placed at the corner of the area to be measured, and the double-head one-key measurement square button 10 is pressed once, the double laser ranging devices are activated synchronously, the distance values in two orthogonal directions are obtained in real time, and the dynamic area calculation engine multiplies the distance values to generate the area result, and the unit intelligent converter automatically switches the unit to m2 according to the numerical range and displays it on the screen.

[0062] Long press the function switching button 12 to enter the volume measurement mode, and trigger the double-head button three times in turn: the first time is to trigger to obtain the L value by aligning the length direction, the second time is to trigger to obtain the W value by rotating 90° to align the width, and the third time is to trigger to obtain the H value by aligning vertically to the height, the dynamic area calculation engine automatically calculates and displays the L×W×H volume result, and the data is synchronously stored in the intelligent memory unit.

[0063] Short press the function switching button 12 to switch to the oblique side measurement mode, and the double laser ranging devices work continuously, and the two orthogonal distance values are input into the Pythagorean theorem algorithm for calculation.

[0064] The above is only a preferred embodiment of the application, and is not intended to limit the application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the application to the above embodiments shall fall within the protection scope of the technical solution of the application.

Claims

1. A laser measuring instrument, characterized in that: Includes: The vertically orthogonally distributed dual laser ranging devices are integrated into the front end and right side of the device respectively. The emission axes of the two modules are perpendicular to each other, forming a right-angle measurement benchmark; A one-button collaborative measurement system includes a physical button and a processing unit. The physical button includes: Double-head one-touch measurement square button, a single trigger synchronously activates the dual laser ranging devices, and obtains the distance values ​​in two orthogonal directions in real time; Single-head measurement button and function switching button; Dynamic area calculation engine, in response to the double-head button trigger signal, multiplies the two distance values ​​and outputs the area result in real time; Embedded display screen, real-time display of distance value, area result and operation instructions; A portable pencil, integrated into the lower right side of the device; The spatial adaptive calibration module automatically compensates for measurement errors caused by the device's placement angle based on feedback data from the dual ranging modules.

2. A laser measuring instrument according to claim 1, characterized in that: The function switch button realizes mode cyclic switching: long press for 2 seconds to enter volume measurement mode, trigger the double-headed button three times to obtain the length, width and height data respectively, and then calculate and display the volume; short press to switch to hypotenuse measurement mode, real-time fusion of dual distance measurement values ​​and calculate the diagonal distance according to the Pythagorean theorem.

3. The laser measuring instrument according to claim 1, characterized in that: The dynamic area calculation engine includes a real-time data fusion unit and a unit intelligent converter. The real-time data fusion unit is used to implement noise filtering and time stamp synchronization on the data of the dual laser ranging device. The unit intelligent converter is used to automatically switch units according to the measurement value range and highlight them on the display screen.

4. A laser measuring instrument according to claim 1, characterized in that: When the device is started, the spatial adaptive calibration module drives the dual laser ranging device to emit lasers toward a horizontal reference surface. The device's tilt state is determined by comparing the difference between the two distance values ​​to see if it exceeds a threshold. If the threshold is exceeded, an on-screen warning icon is triggered and the built-in MEMS tilt sensor data is used to correct the output in real time, eliminating errors caused by non-horizontal placement.

5. The laser measuring instrument according to claim 1, characterized in that: The portable pencil is embedded in the laser measuring instrument and is drawn out from the lower end of the laser measuring instrument when in use.

6. The laser measuring instrument according to claim 1, characterized in that: The dual-laser ranging module adopts pulse-phase composite laser technology to achieve ±1mm accuracy within the range of 0.05-30m, and the optical path systems of the two modules share an embedded optical calibration chip.

7. The laser measuring instrument according to claim 1, characterized in that: The laser measuring instrument also includes an intelligent memory unit: the intelligent memory unit automatically stores the most recent 10 sets of measurement data. The user can call up the history record list by double-clicking the function switch button, and supports selecting multiple sets of data for accumulation or average calculation.

8. The laser measuring instrument according to claim 1, characterized in that: The display screen supports gesture operations, specifically including: sliding horizontally on the display screen to switch the activation status of the left and right laser ranging devices, and clicking on the measurement result to manually convert the units.

9. A one-button multi-point measurement method for a laser measuring instrument, according to any one of claims 1 to 8, characterized in that: The following steps are included: S1, place the laser measuring instrument in the area to be measured; S2, after placing the laser measuring instrument horizontally, trigger the double-head button once to simultaneously obtain the orthogonal distance value and calculate the area; S3, after the area calculation is completed, switch to the next position for measurement. After calculating the area multiple times, the current area value can be added to the historical measurement value to obtain the area of ​​the entire area.

10. The one-button multi-point measurement method of a laser measuring instrument according to claim 9, characterized in that: When only one side needs to be measured, the single laser distance measuring device can be turned off or activated through the single head measurement button or display screen.

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