A leveling measurement auxiliary distance measurement method and leveling measurement auxiliary distance measurement device based on ultra-wideband positioning device

Abstract

The present invention provides a leveling auxiliary ranging method and a leveling auxiliary ranging device based on an ultra-wideband positioning device, and relates to the technical fields of leveling measurement at all levels. The present invention solves the technical problem of how to improve the convenience of leveling auxiliary ranging by installing an ultra-wideband positioning device on a level and installing a UWB mobile tag on a leveling rod. The present invention uses an ultra-wideband positioning device and two UWB mobile tags to obtain the distance between the ultra-wideband positioning device and the rod in real time, and displays it on the leveling auxiliary ranging device. In combination with a voice broadcast function, the distance between the leveling rod and the level is prompted in real time, and the rod placement point can be indicated. The auxiliary rod is used to measure at a convenient point, which provides convenience for operators to perform leveling measurements at all levels.

Description

Technical Field

[0001] The present invention relates to the technical field of leveling measurement of various levels, and in particular to a leveling measurement auxiliary ranging method and a leveling measurement auxiliary ranging device based on an ultra-wideband positioning device. Background Art

[0002] Leveling, also known as "geometric leveling", is a method of measuring the height difference between two points on the ground using a level and a level rod. A level is placed between two points on the ground, and the level rod erected at the two points is observed, and the height difference between the two points is calculated based on the readings on the rod.

[0003] During the leveling process, the distance between the level instrument and the leveling rods at both ends often needs to be measured manually. Common traditional distance measurement methods include counting steps, pulling tape measures, pushing rollers, etc. When the leveling observation distance is long and the number of measuring stations is large, the traditional distance measurement methods are costly, low in accuracy, and low in efficiency.

[0004] Publication No. CN208671956U discloses a level measuring system, including a level base and two measuring rulers, wherein the level base is provided with an RFID tag, and the measuring rulers are provided with an RFID reader for reading the distance between the RFID tag and the measuring ruler. The RFID reader reads the distance between the RFID tag and the measuring ruler, and the staff who takes the measuring ruler can understand the distance between the measuring ruler and the level base through the RFID reader. It is convenient to judge the position of the measuring ruler, and reduces the frequent use of the level base to measure the distance between the measuring ruler and the level base. Thereby facilitating the measurement of the staff. When moving the measuring ruler in this method, the moving personnel cannot intuitively know whether the distance is in place, and the measured distance is not the horizontal distance required in the leveling measurement.

[0005] Publication No. CN217716374U discloses a laser distance measurement device, including a level, a mounting bracket is arranged at the bottom of the level, the bottom end of the mounting bracket is a sharp angle structure, a mounting structure is arranged below the top base of the mounting bracket, a reflective structure with an adjustable angle is suspended at the bottom of the mounting structure, the reflective structure is in the shape of a strip, a hanging part is arranged at the top of the reflective structure, and level rulers are arranged on both sides of the level, and the level rulers include a bubble alignment structure , the level ruler is respectively provided with a lock structure with adjustable height, the lock structure is provided with a laser rangefinder, and the two reflective surfaces of the reflective structure are arranged opposite to the laser rangefinder; the ruler holder rotates the level ruler through the level ruler handrail to align the light spot emitted by the laser rangefinder with the reflective strip at the lower end of the level 1, and the measurement can be controlled after comparison to obtain a sight distance with an accuracy of not less than 0.1 meters. According to the front and rear sight distance difference, the front and rear ruler holders measure and adjust the distance to achieve the sight distance difference that meets the requirements of the leveling measurement specification. The use of a laser rangefinder requires that the reflective structure be within the visible range of the light, which increases the difficulty of manual operation. Summary of the invention

[0006] In view of the shortcomings of the existing leveling auxiliary ranging technology, the present invention provides a leveling auxiliary ranging method and a leveling auxiliary ranging device based on an ultra-wideband positioning device, which can determine the distance between the level and the measuring ruler, and is used to assist in determining the position of the measuring ruler, and can timely and effectively remind the operator, and can reduce manual work, without the need for excessive operations on the ranging, thereby greatly improving the leveling auxiliary ranging accuracy and operating efficiency.

[0007] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0008] Provided is a leveling auxiliary distance measurement method based on an ultra-wideband positioning device, which uses a level, two matching leveling rods, a set of ultra-wideband positioning devices and two sets of UWB mobile tags; the ultra-wideband positioning device is installed on the level, and the two sets of UWB mobile tags are installed on the two matching leveling rods respectively. The method includes: the leveling rod surface is directly opposite to the level, and the distance between the level and the two sets of leveling rods is obtained in real time through the UWB mobile tag and the ultra-wideband positioning device. The staff adjusts the position of the level and the leveling rod in time according to the real-time distance information seen by the voice broadcast and the display screen, so as to realize auxiliary distance measurement of various levels of leveling measurement. In the device of the present invention, the transmission method of data information such as distance can be wireless transmission or the like.

[0009] The present invention innovatively combines UWB technology and applies it to leveling technology. The UWB technology mainly includes an ultra-wideband positioning device and a UWB mobile tag.

[0010] The UWB technology mainly uses the ultra-wideband positioning device and positioning method proposed by the Chinese patent publication number CN117896826A, which can obtain the distance between the ultra-wideband positioning device and the UWB mobile tag.

[0011] The invention provides a leveling auxiliary distance measuring device, which comprises a level, two matching leveling rods, a set of ultra-wideband positioning device and UWB mobile tag, indicator light and auxiliary rod.

[0012] Before the leveling measurement begins, fix the ultra-wideband positioning device on the leveling instrument, and fix two sets of UWB mobile tags on two matching leveling rods respectively. Preferably, they are fixed on the sides of the leveling rods that do not cover the scale. The two matching leveling rods are placed on the front and rear sides of the leveling route at a certain distance from the leveling instrument, and one set of UWB mobile tags is fixed on each leveling rod.

[0013] The ultra-wideband positioning device and the UWB mobile tag are respectively provided with a display module and a voice broadcast module, which can display the acquired real-time distance and transmit the information to the operator through voice broadcast.

[0014] Since UWB technology is used for distance measurement, the distance obtained is the straight-line distance between the ultra-wideband positioning device and the UWB mobile tag, and the position of the UWB mobile tag on the leveling rod has a certain influence on the measurement result. In order to eliminate the influence of the position of the UWB mobile tag, a set of UWB mobile tags arranged on each rod includes two UWB tags. The distance between the two UWB tags in the same rod is input into the calculation device matched with the ultra-wideband positioning device in advance, and then the distance between the two UWB tags on the same rod obtained by the ultra-wideband positioning device, that is, the length of the three sides of the triangle is known, and the horizontal height of the triangle, that is, the horizontal distance between the level and the corresponding leveling rod, is calculated in the calculation device, which can be obtained according to ordinary mathematical relations. Furthermore, the distance between two UWB tags of the same ruler in each ruler can be automatically obtained without being pre-set, and two tags on the same ruler can move up and down the ruler by themselves. The specific movement method can be installed and set adaptively in any way in the prior art in conjunction with the material and shape of the ruler, and each tag is installed with a distance sensor, which can obtain the distance between the two tags and transmit it to the computing device of the ultra-wideband positioning device by wireless means, thus avoiding the need to pre-set the distance; in addition, the up and down movement of the tag can be controlled to calculate multiple horizontal distances, and then averaged to obtain a more accurate horizontal distance value. When operating, the operator needs to hold the ruler and move it to the specified distance before placing it. On the basis of voice broadcast, the operator can quickly find the corresponding position to place the ruler, but due to the delay of voice broadcast, the operator cannot quickly and accurately find the placement point. Therefore, based on the above embodiment, this embodiment explains how to indicate the placement point. A horizontal telescopic ruler is installed on the top of the ruler, and an indicator light is provided on the bottom surface of the end of the horizontal telescopic ruler. For example, when approaching 48.5 meters (48.5 is the assumed target distance value), preferably 48 meters (it can be indicated in advance according to the actual situation, and only a simple setting is required), the horizontal telescopic ruler extends 0.5 meters in the direction away from the leveling instrument, and the indicator light is turned on, and the indicator light is vertically emitted to the ground at 48.5 meters to prompt the operator. As the operator approaches 48.5 meters, the horizontal telescopic ruler can be gradually retracted, and the indicator lights can all point to 48.5 meters. The horizontal telescopic ruler can be extended in the direction away from the leveling instrument or close to the leveling instrument under the control of the control device, and its telescopic scale can be controlled according to the specific value.

[0015] A sliding block can also be provided on the leveling ruler, and a telescopic mechanism can be rotatably provided on the sliding block, and an auxiliary ruler can be rotatably provided on the other side of the telescopic mechanism. When it is inconvenient to place the ruler at the target point (at the position indicated by the indicator light), an auxiliary ruler can be used, and the auxiliary ruler can be placed at the target point by rotating, sliding up and down, and telescoping. The sliding block, telescopic mechanism and auxiliary ruler are detachably slidably connected to the ruler, and can be installed on the ruler when needed. The auxiliary ruler can be of the same structure as the ruler. The telescopic mechanism preferably adopts an X-telescopic frame, and can also adopt the form of connecting rod splicing, electric, hydraulic or pneumatic telescopic rod. When auxiliary placement of the ruler, it is necessary to keep the ruler surface turned toward the level, and the rotatable connection here can adopt any known rotation setting method.

[0016] The present invention provides a leveling auxiliary distance measurement method and a leveling auxiliary distance measurement device based on an ultra-wideband positioning device. Through the device, a level operator can obtain the precise distance between two rulers and the level in real time, and the distance is not affected by the position of a mobile tag. The ruler operator can obtain the distance from the ruler to the level in real time, which provides convenience for leveling measurements of all levels. Compared with traditional operation methods such as counting steps, pulling a tape measure, and pushing a roller to measure distance, manual operations are reduced, and the efficiency of leveling operations is greatly improved. A suitable position for placing the ruler can also be selected according to actual ground conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a leveling auxiliary distance measuring device provided in Example 1 of the present invention.

[0018] Figure 2 It is a flow chart of a leveling auxiliary ranging method based on an ultra-wideband positioning device provided by the present invention.

[0019] Figure 3 It is a structural schematic diagram of the ultra-wideband positioning device and the UWB mobile tag in the first embodiment provided by the present invention.

[0020] Figure 4 It is a structural schematic diagram of another leveling auxiliary distance measuring device provided by the present invention.

[0021] Figure 5 It is a schematic diagram of the auxiliary indication point structure provided by the present invention.

[0022] Figure 6 It is a schematic diagram of the auxiliary ruler provided by the present invention. DETAILED DESCRIPTION

[0023] In order to allow those skilled in the art to better understand the technical solution, the solution is further described in detail below in conjunction with specific implementation examples. However, it should be clear that the present invention is not limited to the scope of the implementation methods. For those skilled in the art, as long as various changes are within the scope of the present invention defined and determined by the attached claims, all inventions and creations using the concept of the present invention are protected.

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will be described through examples in conjunction with the accompanying drawings of the present invention.

[0025] As described in the background art, traditional distance measurement methods have the problems of high cost, low distance measurement accuracy and low efficiency.

[0026] In order to solve the above technical problems, the present invention creatively proposes a leveling measurement auxiliary ranging method based on an ultra-wideband positioning device, which effectively combines UWB technology and leveling technology. Embodiment 1

[0027] 201. When the ultra-wideband positioning device is paired with the UWB mobile tag successfully, the ultra-wideband positioning device and the UWB mobile tag transmit and receive target data.

[0028] 202. Acquire the distance between the ultra-wideband positioning device and the UWB mobile tag in real time.

[0029] 203. Voice broadcasting is used to assist operators in adjusting the distance between the level instrument and the level rod.

[0030] The example of the present invention creatively proposes a leveling measurement auxiliary distance measuring device, which organically combines an ultra-wideband positioning device with a UWB mobile tag, a level instrument and a leveling rod.

[0031] For example, Figure 3 As shown, the ultra-wideband positioning device 4 and the first UWB mobile tag 5 and the second UWB mobile tag 6 all encapsulate a UWB antenna, a combination module, a battery module, a voice module, and a display module.

[0032] The ultra-wideband positioning device 4 will display and voice broadcast the distance AB and the distance AC, the first UWB mobile tag 5 will display and voice broadcast the distance AB, and the second UWB mobile tag 6 will display and voice broadcast the distance AC.

[0033] Figure 1 , 2 The structure and operation flow diagram of the leveling measurement auxiliary device in the example of the present invention is shown, the ultra-wideband positioning device 4 is fixed to the level 1, the first UWB mobile tag 5 is fixed to the first leveling rod 2, and the second UWB mobile tag 6 is fixed to the second leveling rod 3.

[0034] Operator C first sets up the first leveling rod 2 at point C. Operator A moves a specified distance within the specified level measurement sight distance limit, such as 48.5m. Operator B moves toward point A at a distance of 48.5m, and sets up the second leveling rod 3 at a suitable point A after intermittent voice prompts of the distance AB.

[0035] When operator A moves the station forward, he informs operator C of the distance to be reached, and then operator C reaches the designated position according to the voice prompt distance. Thereafter, the above steps are repeated until the measurement is completed. Embodiment 2

[0036] Since the distance obtained is the distance between the level and the UWB mobile tag, the different heights of the UWB tag at the leveling rod will cause a certain deviation in the distance obtained. Usually, the UWB tag is placed at the same horizontal position as the level to measure the accurate distance. However, this will be inconvenient to adjust and the operation is cumbersome. For this reason, in this embodiment, based on the first embodiment, two UWB tags are provided on each leveling rod. The distance between the two UWB tags on the same leveling rod is pre-input into the calculation device of the ultra-wideband positioning device. The ultra-wideband positioning device then obtains the distance between it and the two UWB tags on the same rod. That is, the lengths of the three sides of the triangle are known, and the height of one side of the triangle can be obtained according to ordinary mathematical relationships. This height is the horizontal distance between the level and the corresponding leveling rod. At this time, the horizontal distance is displayed and broadcasted on the mobile tag and the ultrasonic positioning device. Figure 4 . Embodiment 3

[0037] This embodiment is further improved on the basis of the second embodiment, that is, the distance between two UWB mobile tags on the same scale in each leveling scale may not be pre-set but may be automatically obtained, the two mobile tags may move up and down on the scale by themselves, and the specific movement method may be any method in the prior art to be adaptively installed and set in conjunction with the material and shape of the scale, and each mobile tag is installed with a distance sensor, which may obtain the distance between the two mobile tags and transmit it wirelessly to a computing device supporting the ultra-wideband positioning device, thus avoiding pre-setting the distance; in addition, multiple horizontal distances may be calculated by controlling the up and down movement of the mobile tags, and then averaged to obtain a more accurate horizontal distance value. Embodiment 4

[0038] The operator needs to hold the ruler and move it to the specified distance before placing the ruler. Based on the voice broadcast, the operator can find the corresponding position to place the ruler relatively quickly. However, due to the delay of the voice broadcast, the operator cannot find the placement point quickly and accurately. Therefore, based on the above embodiment, this embodiment explains how to indicate the placement point. A horizontal telescopic ruler 10 is installed on the top of the ruler. The horizontal telescopic ruler 10 can be extended toward or away from the level meter under the action of the controller. The bottom surface of the end of the horizontal telescopic ruler is provided with an indicator light 11. For example, when approaching 48.5 meters (the assumed target distance value), preferably 48 meters (according to the actual situation, it can be indicated in advance, and only simple settings are required), the horizontal telescopic ruler 10 extends 0.5 meters, and the indicator light 11 turns on, emitting an indicator light toward the ground at 48.5 meters to prompt the operator. As the operator approaches 48.5 meters, the horizontal telescopic ruler 10 can gradually retract under the action of the controller, and the indicator light 11 can point to 48.5 meters. Figure 5 shown. Embodiment 5

[0039] like Figure 6 As shown, on the basis of the above embodiment, a sliding block 7 is provided on the first leveling ruler 2, a telescopic mechanism 8 is rotatably provided on one side of the sliding block 7, and an auxiliary ruler 9 is rotatably provided on the other side of the telescopic mechanism. When it is inconvenient to place the ruler at the target point, the auxiliary ruler 9 can be used, and the auxiliary ruler 9 can be placed at the target point by rotating, sliding up and down, and telescoping. The sliding block 7, the telescopic mechanism 8, and the auxiliary ruler 9 are detachably slidably connected to the first leveling ruler 2, and can be installed on the ruler when needed. The auxiliary ruler can be of the same structure as the first leveling ruler 2. The telescopic mechanism 8 can be in the form of an X-telescopic frame, or in the form of connecting rod splicing, electric, hydraulic or pneumatic telescopic rods.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. Any modification, replacement and improvement made within the spirit and principle of this solution should be included in the protection scope of the claims of this solution.

Claims

1. A leveling auxiliary ranging device based on an ultra-wideband positioning device, characterized in that: It includes 1 level, 2 matching leveling rods, 1 set of ultra-wideband positioning device, and 2 sets of UWB mobile tags; each matching leveling rod is installed with 1 set of UWB mobile tags, and the 1 set of UWB mobile tags on each matching leveling rod includes two UWB mobile tags, and the ultra-wideband positioning device is installed on the level; the distance information from the ultra-wideband positioning device to the UWB mobile tags on the two matching leveling rods is obtained in real time, and the horizontal distance between the ultra-wideband positioning device and the two matching leveling rods is calculated; the two horizontal distance information between the ultra-wideband positioning device and the two matching leveling rods are respectively transmitted to the operators corresponding to the two matching leveling rods in real time through voice broadcast; The displays at the level instrument end and the leveling ruler end both display the horizontal distance from the ultra-wideband positioning device to the leveling ruler; each UWB mobile tag is movably arranged on the leveling ruler and has a distance sensor respectively, which can measure the distance between two UWB mobile tags on the same leveling ruler; the horizontal distance between the leveling ruler and the ultra-wideband positioning device is calculated by the distance between the two UWB mobile tags on the same leveling ruler and the distance between the two UWB mobile tags on the same leveling ruler and the ultra-wideband positioning device respectively; a horizontal telescopic ruler is arranged on the top of the leveling ruler, and an indicator light is installed on the bottom surface of the end of the horizontal telescopic ruler, and the indicator light indicates the placement point of the leveling ruler vertically downward; the horizontal telescopic ruler is controlled to ensure that the placement point of the leveling ruler indicated by the indicator light remains fixed; a sliding block is arranged on the leveling ruler, a telescopic mechanism is arranged on one side of the sliding block, and an auxiliary ruler is arranged on the other side of the telescopic mechanism.

2. The leveling auxiliary distance measuring device based on the ultra-wideband positioning device according to claim 1 is characterized in that: The sliding block can move up and down and has a locking mechanism.

3. The leveling auxiliary distance measuring device based on the ultra-wideband positioning device according to claim 2 is characterized in that: The telescopic mechanism is an X-telescopic frame, an electric telescopic rod, a hydraulic telescopic rod or a pneumatic telescopic rod.

4. The distance measurement method of the leveling auxiliary distance measurement device based on the ultra-wideband positioning device according to any one of claims 1 to 3, characterized in that: The distance information between the ultra-wideband positioning device and the UWB mobile tags on the two matching leveling rods is obtained in real time, and the horizontal distance between the ultra-wideband positioning device and the two matching leveling rods is calculated; the two horizontal distance information between the ultra-wideband positioning device and the two matching leveling rods are respectively transmitted to the operators corresponding to the two matching leveling rods through voice broadcast in real time; the displays at the level instrument end and the leveling rod end both display the horizontal distance from the ultra-wideband positioning device to the leveling rod. The real-time acquisition of distance information from the ultra-wideband positioning device to the UWB mobile tags on two matching leveling rods includes: When the UWB positioning device is paired with the UWB mobile tag successfully, the UWB mobile tags on the two matching leveling rods are used to send and receive target data through the UWB positioning device radio frequency port. Based on the time when the radio frequency port sends and receives the target data, the distance between the ultra-wideband positioning device and the UWB mobile tags on the two matching leveling rulers is obtained.

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