Mobile measuring trolley

Abstract

The utility model relates to the field of laser ranging instruments, in particular to a mobile measuring trolley, which comprises a mobile trolley, the mobile trolley comprises a trolley plate and a handrail arranged on the rear side of the trolley plate, and the mobile measuring trolley also comprises a telescopic vertical rod arranged on one side of the front part of the mobile trolley; a plurality of through holes are formed in the partition plates, so that the telescopic vertical rods and the vertical rods of the handrails penetrate through the through holes, and the drawer structures are arranged among the partition plates and used for containing and supporting the partition plates; one end of the telescopic cross rod is connected with the support, the other end of the telescopic cross rod is connected with the telescopic vertical rod, and the support is used for installing measuring equipment. The utility model has the advantages that the integrated installation of a plurality of unit measuring devices is realized, and the expansion capability of the devices is realized; flexible movement of the laser range finder is achieved, the manual labor amount is reduced in multiple measurement processes, and the working efficiency of laser range finding is improved.

Description

Technical Field

[0001] The utility model relates to the field of laser distance measuring instruments, in particular to a mobile measuring vehicle. Background Art

[0002] Laser distance measuring is the use of laser as a light source for distance measurement. According to the working mode of laser, it can be divided into continuous laser and pulsed laser. Due to the good monochromaticity and strong directionality of laser, coupled with the semiconductor integration of electronic circuits, laser distance measuring instruments can not only operate day and night, but also improve the distance measurement accuracy compared with photoelectric distance measuring instruments.

[0003] The existing laser ranging instrument units are numerous and fixed in motion. In order to calibrate errors and accurately measure targets in laser ranging, the ranging equipment needs to be moved multiple times. It is now urgent to design an integrated laser rangefinder and realize the flexible movement of the laser rangefinder to reduce the manual labor in laser ranging operations and improve the work efficiency of laser ranging operations. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a mobile measuring trolley for integrating complex laser distance measurement unit equipment and realizing flexible movement of the laser distance meter, thereby reducing the manual labor of laser distance measurement operations and improving operation efficiency.

[0005] In order to achieve the above-mentioned purpose, a mobile measuring cart is designed, including a mobile cart, the mobile cart includes a cart plate and an armrest arranged on the rear side of the cart plate, and also includes a telescopic vertical rod arranged on the front side of the mobile cart; a plurality of layers of partitions, a plurality of through holes are opened on the partitions to allow the telescopic vertical rod and the vertical rod of the armrest to pass through the through holes, a plurality of drawer structures are arranged between the partitions for storing and supporting the partitions; a telescopic cross bar, one end of the telescopic cross bar is connected to a bracket, and the other end is connected to the telescopic vertical rod, and the bracket is used to install a measuring device.

[0006] Preferably, the front and rear of the mobile cart of the utility model are both provided with a first porous baffle, a left or right side of the mobile cart is provided with a second porous baffle, and the other side of the left or right side of the mobile cart is a hollow structure.

[0007] Preferably, the partition of the utility model is provided with through holes at the four corners, the through holes at the rear side of the partition are used to pass through the two vertical rods of the handrail, and the through holes at the front side of the partition are used to pass through the telescopic vertical rods, and one of the telescopic vertical rods is connected to the telescopic cross bar and the bracket.

[0008] Preferably, a connecting piece is provided on the top of the telescopic vertical rod of the utility model, and the connecting piece is used to connect the telescopic vertical rod and the telescopic horizontal rod.

[0009] Preferably, the measuring device of the utility model comprises a log-periodic antenna, a measuring receiver, a semi-custom integrated circuit, a signal generator, an oscilloscope and a mixer.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. By designing multi-layer storage space, the integrated installation of multiple unit measuring devices is realized, and a certain equipment expansion capability is achieved through the drawer structure.

[0012] 2. Through the design of the trolley, the laser rangefinder can be flexibly moved, which reduces the manual labor during multiple measurements and improves the operating efficiency of the laser rangefinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1-2 , is a three-dimensional diagram of the utility model;

[0014] Figure 3 , is a schematic diagram of the working method of the utility model when used for measurement;

[0015] In the figure: 1 mobile trolley; 2 trolley plate; 3 handrail; 4 telescopic vertical rod; 5 partition; 6 drawer structure; 7 telescopic horizontal rod; 8 bracket; 9 first porous baffle; 10 second porous baffle; 11 adapter. DETAILED DESCRIPTION

[0016] In order to make the purpose, principle and structure of the utility model clearer, it is further described below in conjunction with the drawings and specific embodiments.

[0017] See also Figure 1-2 The utility model provides a mobile measuring trolley, comprising a mobile trolley 1, wherein the mobile trolley comprises a trolley plate 2 and an armrest 3 arranged at the rear side of the trolley plate; a telescopic vertical rod 4 arranged at one side of the front part of the mobile trolley 1; a plurality of layers of partitions 5, wherein a plurality of through holes are formed on the partitions 5 so that the telescopic vertical rod 4 and the vertical rods of the armrest 3 pass through the through holes; a plurality of drawer structures 6, which are arranged between the partitions 5 and are used to store and support the partitions 5; a telescopic cross bar 7, wherein one end of the telescopic cross bar is connected to a bracket 8, and the other end is connected to the telescopic vertical rod 4, and the bracket 8 is used to install the measuring equipment.

[0018] The front and rear of the mobile trolley 1 are both provided with a first porous baffle 9, the left or right side of the mobile trolley 1 is provided with a second porous baffle 10, and the other side of the left or right side of the mobile trolley 1 is a hollow structure. The four corners of the partition 5 are provided with through holes, the through holes on the rear side of the partition are used to pass through the two vertical poles of the handrail 3, and the through holes on the front side of the partition are used to pass through the telescopic vertical poles 4, one of the telescopic vertical poles 4 is connected to the telescopic cross bar 7 and the bracket 8. The top of the telescopic vertical pole 4 is provided with an adapter 11, and the adapter 11 is used to connect the telescopic vertical pole 4 and the telescopic cross bar 7. The measuring device includes a logarithmic periodic antenna, a measuring receiver, a semi-custom integrated circuit, a signal generator, an oscilloscope and a mixer.

[0019] The measuring instruments, including EMI measuring receiver, current clamp and frequency generator, can be placed in the drawer structure 6. The logarithmic periodic antenna can be selected according to different requirements, and can be replaced by a biconical antenna, an active rod antenna, a double-ridged waveguide horn antenna and a loop antenna.

[0020] The laser distance measurement principle of the utility model is the principle of a phase-type laser positioning device.

[0021] Phase laser ranging uses radio frequency to modulate the laser beam amplitude and measure the phase delay that occurs when the modulated light travels back and forth along the measuring line. It then converts the distance based on the wavelength of the modulated light wave. This is an indirect measurement method.

[0022] The phase difference between the incident light and the reflected light is related to the position of the obstacle (the object being measured). Assuming that the distance between the transmitter and the obstacle is X, the speed of light is C, the time difference is dt, the modulation wave frequency is f, and the phase difference is φ. Then φ=2*π*f*dt, substituting dt=2*X / C into it, we can get φ=4*π*f*X / C. At the same time, it can be regarded as a superposition of N complete cycle wave number phases and an incomplete wave residual phase Δφ, so at the same time φ=2*π*N+Δφ, combining the above equations to get X=φ*C / (4*π*f)=φC / (2f), so as long as the N value and the residual phase Δφ are measured, the corresponding distance can be converted.

[0023] See also Figure 3 The working method of the utility model for measurement is shown in the figure. The trolley is pushed to the measuring point A to complete the measurement, and then the trolley is pushed to the detection point B to complete the measurement. After collecting the data, the following calculation is performed:

[0024] Assuming that the left and lower (rear) inner walls of the room are horizontal measurement planes, it can be obtained from the diagram that: tanθ=(y0-y1) / (x0-x1). The positive or negative value of tanθ can be used to determine whether the displacement is on the left or right side of the reference line. If tan0 is greater than 0, it is on the right side of the reference, and if tanθ is less than 0, it is on the left side of the reference.

[0025] By calculating △X, △Y and tanθ, the horizontal and vertical increments corresponding to the corresponding angles can be calculated, thereby locating the antenna position efficiently and accurately.

[0026] The above is only a specific implementation method of this utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical solution and new concept of the utility model, shall be covered by the protection scope of the utility model.

Claims

1. A mobile measuring trolley, comprising a mobile trolley, wherein the mobile trolley comprises a vehicle plate and a handrail arranged at the rear side of the vehicle plate, characterized in that Also includes A telescopic upright pole arranged on one side of the front of the mobile trolley; Several layers of partitions are provided with several through holes, so that the telescopic uprights and the uprights of the handrails can pass through the through holes. A plurality of drawer structures are arranged between the partitions and used for storing and supporting the partitions; A telescopic cross bar, one end of which is connected to a bracket and the other end of which is connected to a telescopic vertical rod, and the bracket is used to install a measuring device.

2. A mobile measuring vehicle as claimed in claim 1, characterized in that The front and rear of the moving trolley are both provided with a first porous baffle, one side of the left or right part of the moving trolley is provided with a second porous baffle, and the other side of the left or right part of the moving trolley is a hollow structure.

3. A mobile measuring vehicle as claimed in claim 1, characterized in that The four corners of the partition are provided with through holes, the through holes at the rear side of the partition are used to pass through the two vertical rods of the handrail, and the through holes at the front side of the partition are used to pass through the telescopic vertical rods, and one of the telescopic vertical rods is connected to the telescopic cross bar and the bracket.

4. A mobile measuring vehicle as claimed in claim 3, characterized in that A connecting piece is provided on the top of the telescopic vertical rod, and the connecting piece is used to connect the telescopic vertical rod and the telescopic horizontal rod.

5. A mobile measuring vehicle as claimed in claim 1, characterized in that The measuring device comprises a log-periodic antenna, a measuring receiver, a semi-custom integrated circuit, a signal generator, an oscilloscope and a mixer.

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