CN204461414U - The portable two-way laser of a kind of mining tunnel launches section detector - Google Patents

Abstract

The utility model relates to the technical field of roadway section testing. Disclosed is a portable two-way laser emitting cross-section detector for mining roadways, which includes an explosion-proof housing, a laser ranging module is provided at both ends of the explosion-proof housing, and a display module and a level are provided on the surface of the explosion-proof housing. The side of the explosion-proof housing is also provided with hanging buckles and lighting lamps. The explosion-proof housing also includes a power supply module, a communication module, a control key, a control chip and a GPS positioning module. The control chip controls the display module and the laser measuring module respectively. distance module, the laser distance measurement module communicates with the control chip through the communication module, the level meter communicates with the control chip through the communication module, and the control key is connected with the control chip. The utility model has a unique structure, does not need to set a reference point in the test process, has stable and reliable performance, and has certain popularization.

Description

A portable two-way laser emission section detector for mine roadway

technical field

The utility model relates to the technical field of roadway section testing, in particular to a portable two-way laser emission section detector for mine roadways.

Background technique

With the increase of mine mining intensity and scope, the cross section of the roadway continues to increase, and the number of safety accidents increases, which not only poses a direct threat to the personnel and equipment of the roadway construction, but also affects the construction progress. Many factors affect safe production, among which the dynamic characteristics of roadway surrounding rock deformation and destruction have a greater impact on support and maintenance. Timely grasp of roadway surrounding rock deformation is of great significance for the formulation and implementation of coal mine production plans , so it is necessary to measure the deformation parameters of the surrounding rock of the roadway in daily maintenance according to the purpose of use, service period and safety requirements of the roadway. At present, in the roadway deformation test, the manual measurement method is mostly used to obtain the relevant data of the roadway section, and then the deformation of the roadway is judged according to the variation of the data value. But the existing test technology has the following deficiencies: (1) The visibility of the underground roadway is low, and it is inconvenient for underground workers to operate. The test mostly adopts the method of manual test, and directly measures the height of the roof and the bottom plate and the width of the two sides. Measurement errors lead to large operational measurement errors, and workers are required to record data on time, often causing problems such as inaccurate data analysis caused by workers not recording data in time and with low accuracy; (2) the existing testing technology is a single value Point test, there is a lack of data connection in the calculation of the perimeter and area of the section, and the section measurement result is not accurate enough; (3) the existing roadway test has insufficient positioning of the spatial parameters, and it is difficult to be intuitive when the top and bottom plates deform at the same time To achieve effective judgment; (4) The test range is limited, the process is greatly affected by the test environment, it is difficult to measure when there are obstacles, and the test data is not accurate enough.

Utility model content

The purpose of this utility model is to overcome the deficiencies of existing underground roadway surrounding rock deformation measurement, to provide a mine roadway section laser measuring device with strong stability, high degree of automation, high precision and large measurement range, which can quickly and accurately test The test device for the height, width, perimeter and area of the roadway section is used to evaluate the stability of the roadway, support design and effect, and to judge the correction and time of the support form, support size and spacing, providing comprehensive and effective technology parameter.

A portable two-way laser emitting cross-section detector for mine roadway, comprising an explosion-proof housing, a laser ranging module composed of a laser transmitter and a laser receiver is provided at both ends of the explosion-proof housing, and the surface of the explosion-proof housing is equipped with There is a display module and a spirit level. The side of the explosion-proof housing is also provided with hooks and lights. The bottom of the explosion-proof housing is provided with a base for rotation. The base is provided with three support frames for height adjustment. The explosion-proof housing also includes a power supply module, a communication module, a control key, a control chip and a GPS positioning module, the control chip includes a storage unit and a processor, and the power supply is the display module, communication module, level, control chip and The GPS positioning module supplies power, the control chip controls the display module and the laser ranging module respectively, the laser ranging module communicates with the control chip through the communication module, and the spirit level communicates with the control chip through the communication module The control chip realizes communication, the control key is connected to the control chip, and the GPS positioning module also has a GSM or CDMA card slot.

Specifically, the display module is a liquid crystal display.

Specifically, the power module is a rechargeable lithium battery.

The beneficial effects of the utility model:

1. The utility model adopts two-way emission, compared with the traditional one-way emission, it does not need to set a reference point, which can effectively realize the calculation of space positioning during the test process, and the traditional one-way emission needs to set different reference points in different positions , very troublesome, the utility model can be located in any position in the roadway without a reference point measurement, and avoid the influence of the poor test environment of the roadway during the test process, and the interference with other sundries that affect the test effect.

2. The hanging buckle design of the utility model is convenient for the tester to carry the measuring instrument on the body, and the design of the lighting lamp is also conducive to measurement in an environment with insufficient light.

3. The GPS positioning module of the utility model can communicate the positioning information of the instrument itself through the SIM card in the card slot, and cooperate with the underground personnel positioning system to better observe the whereabouts of the testers and ensure the safety of the testers.

4. The performance and operability of the utility model are stable, and the production cost is low, which meets the safety and high-efficiency production requirements of coal mines, and has good practical value and broad market prospects.

5. The utility model uses a high-performance processor to perform interpolation and integral algorithm processing on the test data. Compared with the traditional scattered fixed-point measurement, the error of the measurement result is smaller.

Description of drawings

Fig. 1 is a module connection diagram of the present utility model;

Fig. 2 is the schematic diagram of measuring polar coordinates of the utility model;

Fig. 3 is the structural front view of Embodiment 1 of the utility model;

Fig. 4 is a structural side view of Embodiment 1 of the present utility model.

The reference signs are as follows:

1: laser ranging module; 2: explosion-proof housing; 3: liquid crystal display; 4: spirit level; 5: hanging buckle; 6: lighting; 7: control key; 8: base;

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail, it should be understood that the structure of the utility model is not limited to the following examples:

A portable two-way laser emitting cross-section detector for mining tunnels, comprising an explosion-proof housing 2, a laser ranging module 1 composed of a laser transmitter and a laser receiver is provided at both ends of the explosion-proof housing 2, and the surface of the explosion-proof housing 2 is equipped with There is a liquid crystal display module and a spirit level 4, and the side of the explosion-proof housing 2 is also equipped with a hanging buckle 5 and a lighting lamp 6, and the bottom of the explosion-proof housing 2 is provided with a base 8 for rotation, and the base 8 is provided with three support frames for adjusting the height 81. The explosion-proof housing 2 also includes a power supply module, a communication module, a control key 7, a control chip and a GPS positioning module, the control chip includes a storage unit and a processor, and the power supply is a display module, a communication module, a level 4, a control chip and GPS The positioning module supplies power, the control chip controls the display module and the laser ranging module respectively, the laser ranging module 1 communicates with the control chip through the communication module, the level gauge 4 communicates with the control chip through the communication module, the control key 7 connects with the control chip, and GPS positioning The module also has a GSM or CDMA card slot, in which a SIM card can be inserted to send out the coordinate position of the tester. It can be used with the mine underground positioning system to better observe the whereabouts of testers and ensure For the safety of personnel, the display module is a liquid crystal display 3 in this embodiment, and the power module is a rechargeable lithium battery. In this embodiment, the self characteristics of laser ranging are used to design a test distance of 0.05m-200m and a measurement accuracy of 1-3mm. with the receiving system. During the testing process, the laser can be used for one-way or two-way testing, and its design position can form two independent transmitting and receiving systems at both ends of the portable tester. Real-time measurement distance and related setting parameters during the test. The control keys are designed for switch, single/two-way mode, sampling, display, storage and other main operation keys.

Embodiment one:

1) In the cross-section space of the roadway, use the instrument level to locate the space at any position, adjust the support frame of the base to make the tester stable, set the relevant parameters of the rangefinder after determining the test angle and test orientation through the leveler, and set the test roadway section mode, Complete pre-test preparations.

2) For the selected detection position, operate the instrument to test the distances d1 and d2 of the section, turn the instrument, adjust the distance meter, and then perform the next distance measurement, collect the roadway section data, and measure the second section data. The two data of each data collection form a data group. After the data is collected, the storage unit for two-way testing or one-way testing distance data can be stored on the storage unit designed inside the rangefinder. According to the test needs, data collection at different test angles is carried out at the same position in the detection section. After the data collection is completed, the test data is stored through the storage module, and the collection and storage of test data at different positions in the roadway is completed in turn.

3) Carry out integration and interpolation calculation on the roadway point test data to form a complete roadway section data arrangement. Then obtain the test data of the whole roadway section, realize the evaluation of the deformation and damage degree of the roadway section, provide reliable technical guidance for safe production, the data processing method of the two-way portable rangefinder, the test length of the existing ground one-way rangefinder Combined with horizontal positioning, first determine the length of each test, and obtain the microelement area dA and fan arc length dl of the curved sector swept by the laser ranging sensor according to the curved side area and the polar coordinate integral of the curved segment, and the entire section noodle

$\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; \&Sigma;dl</span>}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\mathrm{<span\; class="notranslate">\; rd\&theta;</span>}$

In the formula, dθ, dA, dl, r are respectively the measuring angle, the area of the microelement, the length of the microelement curve and the distance between the two points measured.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. A mine roadway portable two-way laser emitting cross-section detector, comprising an explosion-proof housing, is characterized in that: the two ends of the explosion-proof housing are each provided with a laser ranging module composed of a laser transmitter and a laser receiver, so The surface of the explosion-proof housing is provided with a display module and a level, and the side of the explosion-proof housing is also provided with a buckle and a lighting lamp. The bottom of the explosion-proof housing is provided with a base for rotation. The height of the support frame, the explosion-proof housing also includes a power module, a communication module, a control key, a control chip and a GPS positioning module, the control chip includes a storage unit and a processor, the power supply is the display module, the communication module , a level meter, a control chip and a GPS positioning module for power supply, the control chip controls the display module and the laser ranging module respectively, the laser ranging module communicates with the control chip through the communication module, and the level meter communicates with the control chip through the The communication module communicates with the control chip, the control key is connected to the control chip, and the GPS positioning module also has a GSM or CDMA card slot. 2. The portable two-way laser emission profile detector for mine roadway according to claim 1, wherein the display module is a liquid crystal display. 3. The portable two-way laser emission profile detector for mine roadway according to claim 1, wherein the power module is a rechargeable lithium battery.