Intelligent individual soldier measuring rod and measuring method

Abstract

The invention relates to an intelligent individual soldier measuring rod which comprises an outer rod sleeve and an inner rod, the inner rod slidably penetrates through an opening in the upper end of the outer rod sleeve, the bottom end of the outer rod sleeve is connected with a rod tip, the opening in the upper end of the outer rod sleeve is fixedly connected with a locking clamping ring, the locking clamping ring is composed of two clamping arms, the two clamping arms surround the inner rod, and the ends of the two clamping arms are connected through a screw. The locking clamping ring and the outer rod sleeve are coaxially arranged, the exposed section of the inner rod is sleeved with an intelligent single-soldier host, the intelligent single-soldier host is fixed to the exposed section of the inner rod through a buckle, and the top end of the inner rod is fixedly connected with a universal prism. The measuring method of the intelligent individual soldier measuring rod comprises a prism point coordinate calculation step, a deflection angle calculation step and a rod tip contact coordinate calculation step, and can still accurately measure the coordinate of a rod tip contact (a target position) without ensuring that the intelligent individual soldier measuring rod is inserted into the target position in a vertical posture. Therefore, time consumed for centering the measuring rod at any time is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of total station measurement, and in particular to an intelligent individual soldier measuring rod and a measuring method. Background Art

[0002] In the existing total station measurement technology, the measurement methods include prism-free mode, prism use mode, and reflector mode: For the prism use mode, conventional total station measurement requires two people to work together, one person operates the instrument to aim the prism at the instrument end, and the other person holds the prism at the target point to be measured, keeps the centering rod horizontal, and waits for the total station to measure, observe, and collect data (such as Figure 4 as shown).

[0003] When using a robotic total station for measurement, the number of surveyors can be reduced from two to one. This person only needs to hold the centering rod to the point to be measured for observation. However, the centering rod still needs to be kept level at all times during this process, and then click on the collection button on the software control end.

[0004] Both of the above two working methods have disadvantages: The prism usage mode requires two people to form a team, which is a traditional operation with the lowest efficiency. It requires one-to-one cooperation, and usually both parties use walkie-talkies to communicate and confirm the measurement; When using a robotic total station for measurement, the number of surveyors is reduced from two to one. However, when the surveyor holds the centering rod, he still needs to keep the centering rod level at all times before collecting data. This brings many problems. First, the centering rod needs to be straightened each time, and everyone's proficiency is different, which is time-consuming. Second, because people need to straighten the centering rod all the time, the total station cannot measure and collect data at some dangerous measurement points or measurement points that personnel cannot reach. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent individual soldier measuring rod and a measuring method, which can accurately measure the coordinates of the rod tip contact point (target position) without ensuring that the intelligent individual soldier measuring rod is inserted into the target position in a vertical posture, thereby eliminating the need to waste time on straightening the measuring rod.

[0006] To achieve the above object, the present invention provides the following technical solutions: An intelligent individual-soldier measuring rod comprises an outer rod sleeve and an inner rod. The inner rod is slidably inserted into the upper opening of the outer rod sleeve. The bottom end of the outer rod sleeve is connected to the rod tip. A locking clamp ring is fixedly connected to the upper opening of the outer rod sleeve. The locking clamp ring consists of two clamp arms. The two clamp arms embrace the inner rod. The ends of the two clamp arms are connected by screws. The locking clamp ring is coaxially arranged with the outer rod sleeve. The exposed section of the inner rod is sleeved with an intelligent individual-soldier host. The intelligent individual-soldier host is fixed to the exposed section of the inner rod by a buckle. A universal prism is fixedly connected to the top of the inner rod.

[0007] Specifically, the total length of the outer rod sleeve and the inner rod is 2m-2.4m.

[0008] Specifically, the bottom end of the outer rod sleeve is threadedly connected to the rod tip.

[0009] Specifically, the intelligent individual-soldier host is in the shape of a quadrangular pyramid, and the intelligent individual-soldier host gradually narrows from top to bottom.

[0010] Specifically, a data transmission interface is provided on the side wall of the intelligent individual host.

[0011] Specifically, the universal prism is coaxially arranged with the inner rod.

[0012] Specifically, an inertial measurement unit is provided in the intelligent individual soldier host.

[0013] The measuring method of the intelligent individual soldier measuring rod is characterized by comprising the following steps: Rod tip insertion steps: insert the rod tip of the individual measuring rod into the position to be measured; The steps for calculating the coordinates of the prism point are as follows: the measuring instrument emits a laser signal to the universal prism, and the three-dimensional coordinates of the universal prism are calculated using the coordinate calculation principle: , , ; Deflection calculation steps: The inertial measurement unit calculates the deflection between the inner rod length direction and the gravity direction in real time as: ,in , , is the three-axis measurement value of the accelerometer, where is the measurement of the accelerometer along the length of the inner rod; The coordinate calculation steps of the rod tip contact point are as follows: the distance between the optical center of the universal prism and the rod tip contact point is L, and the deflection angle between the inner rod length direction and the gravity direction is The pitch angle component is , , the deflection angle between the inner rod length direction and the gravity direction The roll angle component is , , According to the projection relationship, the coordinates of the rod tip contact point are calculated as follows: ; ; .

[0014] Compared with the prior art, the present invention has the following beneficial effects: The invented intelligent individual measuring rod and measuring method can still accurately measure the coordinates of the rod tip contact point (target position) without ensuring that the intelligent individual measuring rod is inserted into the target position in a vertical posture, so there is no need to waste time to straighten the measuring rod all the time. For some measuring points in dangerous locations, since there is no need to maintain the vertical insertion posture of the measuring rod, relevant personnel can roughly insert the intelligent individual measuring rod at an inclined angle to the dangerous measuring point in the location under the premise of ensuring their own safety. Through the above method, the coordinates of the location can still be accurately measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A stereoscopic view of the intelligent soldier measuring rod; Figure 2 for Figure 1 A partial view of Figure 3 It is a partial view of the outer rod sleeve; Figure 4 Schematic diagram of the measurement principle of a conventional total station.

[0017] In the figure: 1. Outer rod sleeve; 11. Rod tip; 12. Locking clamp; 2. Inner rod; 3. Intelligent single-soldier host; 4. Universal prism. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See Figures 1 to 3 , an intelligent individual soldier measuring rod, comprising an outer rod sleeve 1 and an inner rod 2, wherein the inner rod 2 is slidably inserted into the upper opening of the outer rod sleeve 1. A rod tip 11 is connected to the bottom end of the outer rod sleeve 1, and a locking clamp ring 12 is fixedly connected to the upper opening of the outer rod sleeve 1. The locking clamp ring 12 is composed of two clamp arms, which embrace the inner rod 2, and the ends of the two clamp arms are connected by screws. The locking clamp ring 12 is coaxially arranged with the outer rod sleeve 1. The exposed section of the inner rod 2 is sleeved with an intelligent individual soldier host 3, and the intelligent individual soldier host 3 is fixed to the exposed section of the inner rod 2 by a buckle. A universal prism 4 is fixedly connected to the top of the inner rod 2.

[0020] Specifically, the total length of the outer rod sleeve 1 and the inner rod 2 is 2m-2.4m.

[0021] Specifically, the bottom end of the outer rod sleeve 1 is threadedly connected to the rod tip 11 .

[0022] Specifically, the intelligent individual host 3 is in the shape of a quadrangular pyramid, and the intelligent individual host 3 gradually narrows from top to bottom.

[0023] Specifically, a data transmission interface is provided on the side wall of the intelligent individual host 3.

[0024] Specifically, the universal prism 4 is coaxially arranged with the inner rod 2 .

[0025] Specifically, an inertial measurement unit is provided in the intelligent individual soldier host 3 .

[0026] The measuring method of the intelligent individual soldier measuring rod comprises the following steps: The rod tip 11 inserting step: inserting the rod tip 11 of the individual soldier measuring rod into the position to be measured; The steps of calculating the coordinates of the prism point are as follows: the measuring instrument emits a laser signal to the universal prism 4, and the three-dimensional coordinates of the universal prism 4 are calculated by using the coordinate calculation principle: , , ; Deflection angle calculation steps: The inertial measurement unit calculates the deflection angle between the length direction of the inner rod 2 and the gravity direction in real time as: ,in , , is the three-axis measurement value of the accelerometer, where is the measurement value of the accelerometer along the length direction of the inner rod 2; Steps for calculating the coordinates of the contact point 11 of the rod tip: Take the distance between the optical center of the universal prism 4 and the contact point 11 of the rod tip as L, and the deflection angle between the length direction of the inner rod 2 and the gravity direction as The pitch angle component is , , the deflection angle between the length direction of inner rod 2 and the gravity direction The roll angle component is , , According to the projection relationship, the coordinates of the contact point of the rod tip 11 are calculated as follows: ; ; .

[0027] The working principle of the present invention is as follows: Before measurement, the distant measuring instrument and the intelligent individual measuring rod communicate with the robot measuring instrument via Bluetooth, 4G or radio to obtain the deflection status of the intelligent individual measuring rod in real time.

[0028] When measuring, first insert the intelligent individual soldier measuring rod to the target position. During the insertion process, it is not necessary to ensure that the intelligent individual soldier measuring rod is inserted in a vertical posture, that is, a certain deviation angle is allowed between the length direction of the intelligent individual soldier measuring rod and the vertical direction (gravity direction).

[0029] After the insertion is completed, the measuring instrument emits a laser signal, which is emitted to the universal prism 4 and then reflected back to the measuring instrument to measure the distance between the measuring instrument and the universal prism 4. The three-dimensional coordinates of the measuring instrument itself are known, and the three-dimensional coordinates of the universal prism 4 can be calculated according to the coordinate calculation principle: , , .

[0030] The intelligent single-soldier host 3 is provided with an inertial measurement unit, which calculates the deflection angle between the length direction of the inner rod 2 and the gravity direction in real time as: ,in , , is the three-axis measurement value of the accelerometer, where is the measurement value of the accelerometer along the length direction of the inner rod 2; From this, we can get the deflection angle between the length direction of the inner rod 2 and the gravity direction. The pitch angle component is , , the deflection angle between the length direction of inner rod 2 and the gravity direction The roll angle component is , .

[0031] Taking the distance between the optical center of the universal prism 4 and the contact point of the rod tip 11 as L, the coordinates of the contact point of the rod tip 11 are calculated according to the projection relationship: ; ; .

[0032] Wherein: the distance L between the optical center of the universal prism 4 and the contact point of the rod tip 11 = the distance between the contact point of the rod tip 11 and the locking clamp 12 (L1, constant) + the distance between the locking clamp 12 and the reference point of the intelligent single-soldier host 3 (L2, variable) + the distance between the reference point of the intelligent single-soldier host 3 and the optical center of the universal prism 4 (L3, constant). The locking clamp 12 is provided with a distance sensor, and the intelligent single-soldier host 3 can sense the distance between its reference point and the locking clamp 12, thereby measuring the size of L2 in real time, and thus measuring the distance L between the optical center of the universal prism 4 and the contact point of the rod tip 11 in real time.

[0033] Through the above method, the coordinates of the contact point (target position) of the rod tip 11 can still be accurately measured without ensuring that the intelligent individual measuring rod is inserted into the target position in a vertical posture, so there is no need to waste time to straighten the measuring rod at all times. For some measuring points in dangerous locations, since there is no need to maintain the vertical insertion posture of the measuring rod, relevant personnel can roughly insert the intelligent individual measuring rod at an inclined angle to the dangerous measuring point in the location while ensuring their own safety. Through the above method, the coordinates of the location can still be accurately measured.

[0034] More specifically, a control tablet may be used for control, on which a measurement app is installed, and the measurement app establishes communication with the measurement instrument.

[0035] When starting up, the measuring instrument is turned on, and the intelligent single-soldier host 3 is also turned on and started. After successful startup, the measuring instrument and the intelligent single-soldier host 3 can be paired on the control tablet app. This pairing method is performed through Bluetooth. After successful pairing, the measuring instrument locates and captures the intelligent single-soldier host 3. When the positioning and capture are successful, the intelligent single-soldier host 3 starts the measurement mode.

[0036] The acquisition is triggered on the control tablet app, and the control tablet will send instructions to the measuring instrument to perform laser measurement. At the same time, the intelligent individual host 3 will transmit its own heading angle information to the measuring instrument, and the measuring instrument will transmit the information to the control tablet via Bluetooth. The control tablet obtains the individual measuring rod deflection information, the universal prism 4 height information, and the laser distance information. The three-dimensional coordinates of the measuring instrument's location are known. At this time, the control tablet app can directly calculate the real-time three-dimensional coordinates of the rod tip 11 contact point.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in the form of preferred embodiments, it is not intended to limit the present invention. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent individual soldier measuring rod, characterized in that: It includes an outer rod sleeve and an inner rod. The inner rod can be slidably inserted into the upper opening of the outer rod sleeve. The bottom end of the outer rod sleeve is connected with a rod tip. A locking clamp ring is fixedly connected to the upper opening of the outer rod sleeve. The locking clamp ring is composed of two clamp arms. The two clamp arms embrace the inner rod. The ends of the two clamp arms are connected by screws. The locking clamp ring is coaxially arranged with the outer rod sleeve. The exposed section of the inner rod is sleeved with an intelligent individual host. The intelligent individual host is fixed to the exposed section of the inner rod by a buckle. A universal prism is fixedly connected to the top of the inner rod.

2. The intelligent individual soldier measuring rod according to claim 1 is characterized in that: The total length of the outer rod sleeve and the inner rod is 2m-2.4m.

3. The intelligent individual soldier measuring rod according to claim 1 is characterized in that: The bottom end of the outer rod sleeve is threadedly connected to the rod tip.

4. The intelligent individual soldier measuring rod according to claim 1 is characterized in that: The intelligent individual-soldier host is in the shape of a quadrangular pyramid, and the intelligent individual-soldier host gradually narrows from top to bottom.

5. The intelligent individual soldier measuring rod according to claim 4 is characterized in that: A data transmission interface is provided on the side wall of the intelligent individual host.

6. The intelligent individual soldier measuring rod according to claim 1 is characterized in that: The universal prism is coaxially arranged with the inner rod.

7. The intelligent individual soldier measuring rod according to claim 1 is characterized in that: The intelligent individual soldier host is equipped with an inertial measurement unit.

8. The measuring method of the intelligent individual soldier measuring rod according to claim 7 is characterized in that: The following steps are involved: Rod tip insertion steps: insert the rod tip of the individual measuring rod into the position to be measured; The steps of calculating the coordinates of the prism point are as follows: the measuring instrument emits a laser signal to the universal prism, and uses the coordinate calculation principle to calculate the three-dimensional coordinates of the universal prism: X0, Y0, Z0; Deflection calculation steps: The inertial measurement unit calculates the deflection between the inner rod length direction and the gravity direction in real time as: Among them A x , A y , A z is the three-axis measurement value of the accelerometer, where A z is the measurement of the accelerometer along the length of the inner rod; The coordinate calculation steps of the rod tip contact point are as follows: Taking the distance between the optical center of the universal prism and the rod tip contact point as L, the pitch angle component of the deflection angle θ between the length direction of the inner rod and the gravity direction is The roll angle component of the deflection angle θ between the inner rod length direction and the gravity direction is φ, According to the projection relationship, the coordinates of the rod tip contact point are calculated as follows:

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