CN112304670A - Sampling range determining device and method for sampling machine - Google Patents

Sampling range determining device and method for sampling machine Download PDF

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Publication number
CN112304670A
CN112304670A CN202011335345.4A CN202011335345A CN112304670A CN 112304670 A CN112304670 A CN 112304670A CN 202011335345 A CN202011335345 A CN 202011335345A CN 112304670 A CN112304670 A CN 112304670A
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CN
China
Prior art keywords
carriage
electronic distance
parking area
data
distance meter
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Pending
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CN202011335345.4A
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Chinese (zh)
Inventor
吕学庚
吕学威
马晓峰
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Meijun Intelligent Equipment Beijing Co Ltd
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Meijun Intelligent Equipment Beijing Co Ltd
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Priority to CN202011335345.4A priority Critical patent/CN112304670A/en
Publication of CN112304670A publication Critical patent/CN112304670A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness

Abstract

The invention relates to a sample range determining device and method for a sample machine, which comprises support groups arranged at two sides of a parking area of a transport vehicle, and is technically characterized in that: the support group is by the left socle that is located parking area one side, the right branch frame that is located parking area opposite side constitutes, left and right support arranges along parking area length direction in turn, left and right support top surface is fixed left and right linear guide respectively, left and right linear guide is parallel to each other and is fixed the electron distancer on the guide rail slider respectively, the removal measuring stroke of each electron distancer covers parking area length range jointly, the removal stroke of the first electron distancer that is close to parking area front end is less than haulage vehicle overall length, is greater than the distance of haulage vehicle's locomotive front end to carriage. The invention solves the problem caused by fixing the sampling points of the sampler, and compared with the prior art, the sampling range is more accurately determined, accurate data support is provided for random sampling, and the parking difficulty of transport vehicles is reduced.

Description

Sampling range determining device and method for sampling machine
Technical Field
The invention relates to the technical field of a sampling machine control system, in particular to a sampling range determining device and method of a sampling machine, which are suitable for grain purchasing and quality inspection processes.
Background
At present, in order to achieve the purpose of quality inspection, a sampling machine control system is generally required to be installed in places such as a grain depot, and sampling inspection is carried out on grains loaded on a transport vehicle through a sampling machine.
The existing sample machine control system controls a sample machine to carry out sample operation after detecting that a vehicle reaches a set position. The following problems exist in this process: 1. the sampling point is fixed, the vehicle must reach the set position strictly according to the requirement, otherwise, the sampling can not be caused; 2. the sampling points are fixed, and cheating events are easy to generate. Based on this, the above problem needs to be solved by randomly changing the position of the sampling point, and this work is premised on determining the position of the vehicle, i.e., the position coordinates of the carriage, so as to realize random sampling in the range of the top of the carriage. However, the method for determining the vehicle position by using the infrared sensor has a large error at present, and the determination of the carriage position, namely the sampling range, cannot be accurately realized.
Disclosure of Invention
The invention aims to provide a more reliable sampling range determining device and method for a sampling machine, which solve the problem caused by fixing sampling points of the sampling machine.
The technical scheme of the invention is as follows:
the utility model provides a sampler range determining device, is including locating the support group of haulage vehicle parking area both sides, and its technical essential is: the support group comprises a left support located on one side of a parking area and a right support located on the other side of the parking area, the left support and the right support are alternately arranged along the length direction of the parking area, a left linear guide rail and a right linear guide rail are respectively fixed on the top surfaces of the left support and the right support, the left linear guide rail and the right linear guide rail are mutually parallel, electronic distance measuring instruments are respectively fixed on guide rail sliding blocks, measuring ports of the electronic distance measuring instruments face the parking area, the moving measuring stroke of each electronic distance measuring instrument jointly covers the length range of the parking area, and the moving stroke of a first electronic distance measuring instrument close to the front end of the parking area is smaller than the total length of a transport vehicle and larger than the distance from the front end.
According to the sample range determining device of the sample machine, the number of the left supports is two, the number of the right supports is one, the two left supports are respectively located at the front part and the rear part of the parking area in the length direction of the parking area, the right support is located in the middle of the parking area, and the moving measuring stroke of the electronic distance meter close to the rear end of the parking area covers the tail end of the carriage of the transport vehicle.
According to the sample range determining device of the sample machine, the moving measuring stroke of each electronic range finder is 6 meters.
A method for determining the sampling range of a sampling machine by adopting the device is technically characterized by comprising the following steps:
step 1, a transport vehicle drives into a parking area along the length direction of the parking area, a head of the transport vehicle moves to a position close to a moving starting end of a first electronic distance meter to park, the moving measuring stroke of the first electronic distance meter covers the head of the transport vehicle, the joint of a carriage and the head of the transport vehicle and the front part of the carriage, and the moving measuring stroke of a second electronic distance meter opposite to the first electronic distance meter at least covers one part of the carriage of the transport vehicle;
step 2, starting a linear guide rail where the first electronic distance measuring instrument is located, enabling the first electronic distance measuring instrument to move linearly along the length direction of the parking area under the driving of a guide rail sliding block, when the distance measuring data are reduced suddenly for the first time, indicating that the first electronic distance measuring instrument moves to the head position of the transport vehicle, and recording to obtain the initial point data of the length of the transport vehicle; the first electronic distance measuring instrument continues to move, and when the distance measuring data suddenly increases, the first electronic distance measuring instrument is explained to move to the position where the vehicle head is connected with the carriage; the first electronic distance meter continues to move, when the distance measurement data are reduced suddenly again, the first electronic distance meter is explained to move to the front end position of the carriage, and the data of the starting point of the length of the carriage and the data of the distance between the starting point of the length of the carriage and the side face of the carriage are recorded; the first electronic distance meter continuously moves and continuously records the distance data between the first electronic distance meter and the side surface of the carriage; fitting according to the distance data between the first electronic distance meter and the side surface of the carriage to form a straight line I passing through the side surface of the carriage;
step 3, starting a linear guide rail where a second electronic distance meter on the opposite side of the first electronic distance meter is located, wherein the second electronic distance meter is driven by a guide rail slide block to move linearly along the length direction of the parking area, and the second electronic distance meter measures distance data of the other side face of the carriage; the distance between the first electronic distance meter and the second electronic distance meter is constant, so that the carriage width data can be obtained;
step 4, the second electronic distance meter continues to move to the tail of the carriage, when the distance measurement data suddenly increase, the second electronic distance meter is shown to move to the position of the tail of the carriage of the transport vehicle, and the data of the carriage length ending point is obtained through recording; or when the distance measurement data of the second electronic distance meter changes slightly, the second electronic distance meter indicates that the moving measurement travel of the second electronic distance meter does not cover the tail of the carriage, a linear guide rail where a third electronic distance meter on the same side as the first electronic distance meter is located is started, when the distance measurement data of the third electronic distance meter increases suddenly, the third electronic distance meter is indicated to move to the tail of the carriage of the transport vehicle, and the data of the length end point of the carriage is recorded;
step 5, obtaining the length data of the moving vehicle and the length data of the carriage according to the starting point data of the length of the vehicle, the starting point data of the length of the carriage and the ending point data of the length of the carriage, obtaining coordinates of four corner points corresponding to the top of the carriage according to the length data of the carriage and the width data of the carriage, and transmitting the coordinates to a sampler control system;
and 6, after the sampling machine control system receives coordinate data of four angular points at the top of the carriage, determining a sampling working range of the sampling machine, wherein the sampling working range of the sampling machine is smaller than a rectangular range formed by coordinates of the four angular points at the top of the carriage.
The invention has the beneficial effects that:
1. the electronic distance measuring instrument is used for measuring the length of the vehicle body, the length of the carriage and the width of the carriage, so that coordinates of four corner points at the top of the carriage are determined, a sampling working range of the sampling machine is determined, sampling action can be randomly carried out in the sampling working range, accurate data support is provided for random sampling, and meanwhile, the parking difficulty of a transport vehicle is reduced.
2. The invention provides accurate data support for random sampling and ensures the feasibility of random sampling, thereby solving the problem that cheating events are caused frequently due to sample point fixation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is another angle schematic of the present invention.
In the figure: 1. the parking area, 2, transport vehicle, 3, electronic distance measuring instrument, 4, left support, 5, left linear guide rail, 6, third electronic distance measuring instrument, 7, second electronic distance measuring instrument, 8, right support and 9, right linear guide rail.
Detailed Description
Example 1
As shown in fig. 1 and 2, the sample range determining device of the sample machine comprises bracket groups arranged at two sides of a parking area of a transport vehicle. In this embodiment, the bracket set is composed of two left brackets 4 located on one side of the parking area 1 and one right bracket 8 located on the other side of the parking area 1, the left brackets 4 and the right brackets 8 are alternately arranged along the length direction of the parking area, the two left brackets 4 are respectively located on the front and rear portions of the parking area in the length direction of the parking area, and the right bracket 8 is located in the middle of the parking area.
The top surfaces of the left bracket 4 and the right bracket 8 are respectively fixed with a left linear guide rail 5 and a right linear guide rail 9, the left linear guide rail 5 and the right linear guide rail 9 are parallel to each other, and an electronic distance measuring instrument is respectively fixed on a guide rail slide block. The measuring port of the electronic distance measuring instrument faces the parking area, the moving measuring stroke of each electronic distance measuring instrument covers the length range of the parking area, and the moving stroke of the first electronic distance measuring instrument 3 close to the front end of the parking area is smaller than the total length of the transport vehicle and larger than the distance from the front end of the head of the transport vehicle to the carriage. The moving measuring travel of each electronic distance meter is 6 meters, and the moving measuring travel of the three electronic distance meters completely covers the working range of 0-18 meters.
The sample range determining method of the sample machine comprises the following steps:
step 1, a transport vehicle drives into a parking area along the length direction of the parking area, and a vehicle head moves to a position close to a moving starting end of a first electronic distance meter to park. The travel of the first electronic distance meter 3 covers the head of the transport vehicle 2, the joint of the carriage and the head and the front part of the carriage, and the travel of the second electronic distance meter 7 on the opposite side of the first electronic distance meter 3 covers a part of the carriage of the transport vehicle.
Step 2, starting a linear guide rail where the first electronic distance measuring instrument 3 is located, enabling the first electronic distance measuring instrument 3 to move linearly along the length direction of the parking area under the driving of a guide rail sliding block, and when the distance measuring data are reduced suddenly for the first time, indicating that the first electronic distance measuring instrument 3 moves to the head position of the transport vehicle 2, and recording to obtain the initial point data of the length of the vehicle; the first electronic distance measuring instrument 3 continues to move, and when the distance measuring data suddenly increases, the first electronic distance measuring instrument 3 is explained to move to the position where the vehicle head is connected with the carriage; the first electronic distance meter 3 continues to move, when the distance measurement data are reduced suddenly again, the first electronic distance meter 3 is shown to move to the front end position of the carriage, and the data of the starting point of the length of the carriage and the data of the distance between the starting point of the length of the carriage and the side face of the carriage are recorded; the first electronic distance meter 3 continues to move and record the data of the distance between the first electronic distance meter and the side surface of the carriage; and fitting according to the distance data between the first electronic distance meter and the side surface of the carriage to form a straight line I passing through the side surface of the carriage.
Step 3, starting a linear guide rail where a second electronic distance meter 7 on the opposite side of the first electronic distance meter is located, wherein the second electronic distance meter 7 is driven by a guide rail slide block to move linearly along the length direction of the parking area, the second electronic distance meter 7 measures distance data of the other side face of the carriage, and a straight line II which passes through the distance data points measured by the second electronic distance meter and is parallel to the straight line I can be fitted due to the fact that the two side faces of the carriage are parallel; and the distance between the first electronic distance meter and the second electronic distance meter is fixed, so that the carriage width data can be obtained.
And 4, when the change of the distance measuring data of the mobile terminal is small, the second electronic distance measuring instrument 7 indicates that the moving measuring stroke of the second electronic distance measuring instrument does not cover the tail part of the carriage, starting a linear guide rail where the third electronic distance measuring instrument 6 on the same side with the first electronic distance measuring instrument is located, and when the distance measuring data of the third electronic distance measuring instrument 6 is suddenly increased, indicating that the third electronic distance measuring instrument 6 moves to the tail part of the carriage of the transport vehicle, and recording to obtain the data of the length ending point of the carriage.
And 5, obtaining the length data of the moving vehicle and the length data of the carriage according to the start point data of the length of the vehicle, the start point data of the length of the carriage and the end point data of the length of the carriage, obtaining coordinates of four corner points corresponding to the top of the carriage according to the length data of the carriage and the width data of the carriage, and transmitting the coordinates to a sampling machine control system.
And 6, after the sampling machine control system receives coordinate data of four angular points at the top of the carriage, determining a sampling working range of the sampling machine, wherein the sampling working range of the sampling machine is smaller than a rectangular range formed by coordinates of the four angular points at the top of the carriage.
In the embodiment, the left and right linear guide rails adopt a Kernike linear synchronous belt module, and normal outdoor work at a low temperature of-30 ℃ can be guaranteed by arranging a heating device. The electronic distance measuring instrument adopts a kirschner electronic distance measuring instrument, and the measuring deviation is not more than 0.1mm-5 m. The mounting heights of the left bracket and the right bracket are determined according to the general characteristics of the carriage.
Example 2
The sample range determining device of the sample machine comprises support groups arranged on two sides of a parking area of a transport vehicle. In this embodiment, the bracket set is composed of a left bracket located on one side of the parking area and a right bracket located on the other side of the parking area. The left support and the right support are alternately arranged in the front and the back direction along the length direction of the parking area. The moving measuring strokes of the two electronic distance measuring instruments positioned on the linear guide rails of the left bracket and the right bracket jointly cover the length range of the parking area. The movement measuring travel of the second electronic distance meter close to the rear end of the parking area covers the rear end of the carriage of the transport vehicle. The movement measuring stroke of each electronic distance measuring instrument is 9 meters.
According to the sample range determining method for the sample machine, in the step 3, the second electronic distance meter continues to move to the tail of the carriage, when the distance measuring data suddenly increase, the second electronic distance meter is explained to move to the position of the tail of the carriage of the transport vehicle, and the data of the carriage length ending point is recorded. The rest is the same as example 1.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the invention are also within the scope of the present patent.

Claims (4)

1. The utility model provides a sampler range determining device, is including locating the support group of haulage vehicle parking area both sides, its characterized in that: the support group comprises a left support located on one side of a parking area and a right support located on the other side of the parking area, the left support and the right support are alternately arranged along the length direction of the parking area, a left linear guide rail and a right linear guide rail are respectively fixed on the top surfaces of the left support and the right support, the left linear guide rail and the right linear guide rail are mutually parallel, electronic distance measuring instruments are respectively fixed on guide rail sliding blocks, measuring ports of the electronic distance measuring instruments face the parking area, the moving measuring stroke of each electronic distance measuring instrument jointly covers the length range of the parking area, and the moving stroke of a first electronic distance measuring instrument close to the front end of the parking area is smaller than the total length of a transport vehicle and larger than the distance from the front end.
2. The sampler sampling range determining device of claim 1, wherein: the number of the left supports is two, the number of the right supports is one, the two left supports are respectively positioned at the front part and the rear part of the parking area in the length direction of the parking area, the right support is positioned at the middle part of the parking area, and the tail end of a carriage of the transport vehicle is covered by the movement measuring stroke of the electronic distance meter close to the rear end of the parking area.
3. A sampler sampling range determining device according to claim 2 wherein: the movement measuring stroke of each electronic distance meter is 6 meters.
4. A method of determining the sampling range of a sampler employing the apparatus of claim 1 or 2 or 3, comprising the steps of:
step 1, a transport vehicle drives into a parking area along the length direction of the parking area, a head of the transport vehicle moves to a position close to a moving starting end of a first electronic distance meter to park, the moving measuring stroke of the first electronic distance meter covers the head of the transport vehicle, the joint of a carriage and the head of the transport vehicle and the front part of the carriage, and the moving measuring stroke of a second electronic distance meter opposite to the first electronic distance meter at least covers one part of the carriage of the transport vehicle;
step 2, starting a linear guide rail where the first electronic distance measuring instrument is located, enabling the first electronic distance measuring instrument to move linearly along the length direction of the parking area under the driving of a guide rail sliding block, when the distance measuring data are reduced suddenly for the first time, indicating that the first electronic distance measuring instrument moves to the head position of the transport vehicle, and recording to obtain the initial point data of the length of the transport vehicle; the first electronic distance measuring instrument continues to move, and when the distance measuring data suddenly increases, the first electronic distance measuring instrument is explained to move to the position where the vehicle head is connected with the carriage; the first electronic distance meter continues to move, when the distance measurement data are reduced suddenly again, the first electronic distance meter is explained to move to the front end position of the carriage, and the data of the starting point of the length of the carriage and the data of the distance between the starting point of the length of the carriage and the side face of the carriage are recorded; the first electronic distance meter continuously moves and continuously records the distance data between the first electronic distance meter and the side surface of the carriage; fitting according to the distance data between the first electronic distance meter and the side surface of the carriage to form a straight line I passing through the side surface of the carriage;
step 3, starting a linear guide rail where a second electronic distance meter on the opposite side of the first electronic distance meter is located, wherein the second electronic distance meter is driven by a guide rail slide block to move linearly along the length direction of the parking area, and the second electronic distance meter measures distance data of the other side face of the carriage; the distance between the first electronic distance meter and the second electronic distance meter is constant, so that the carriage width data can be obtained;
step 4, the second electronic distance meter continues to move to the tail of the carriage, when the distance measurement data suddenly increase, the second electronic distance meter is shown to move to the position of the tail of the carriage of the transport vehicle, and the data of the carriage length ending point is obtained through recording; or when the distance measurement data of the second electronic distance meter changes slightly, the second electronic distance meter indicates that the moving measurement travel of the second electronic distance meter does not cover the tail of the carriage, a linear guide rail where a third electronic distance meter on the same side as the first electronic distance meter is located is started, when the distance measurement data of the third electronic distance meter increases suddenly, the third electronic distance meter is indicated to move to the tail of the carriage of the transport vehicle, and the data of the length end point of the carriage is recorded;
step 5, obtaining the length data of the moving vehicle and the length data of the carriage according to the starting point data of the length of the vehicle, the starting point data of the length of the carriage and the ending point data of the length of the carriage, obtaining coordinates of four corner points corresponding to the top of the carriage according to the length data of the carriage and the width data of the carriage, and transmitting the coordinates to a sampler control system;
and 6, after the sampling machine control system receives coordinate data of four angular points at the top of the carriage, determining a sampling working range of the sampling machine, wherein the sampling working range of the sampling machine is smaller than a rectangular range formed by coordinates of the four angular points at the top of the carriage.
CN202011335345.4A 2020-11-25 2020-11-25 Sampling range determining device and method for sampling machine Pending CN112304670A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113720631A (en) * 2021-09-15 2021-11-30 河南工业大学 Sampling machine and control method and control system thereof
CN116148809A (en) * 2023-04-04 2023-05-23 中储粮成都储藏研究院有限公司 Automatic generation method and system for grain vehicle sampling point based on laser radar scanning and positioning

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113720631A (en) * 2021-09-15 2021-11-30 河南工业大学 Sampling machine and control method and control system thereof
CN116148809A (en) * 2023-04-04 2023-05-23 中储粮成都储藏研究院有限公司 Automatic generation method and system for grain vehicle sampling point based on laser radar scanning and positioning
CN116148809B (en) * 2023-04-04 2023-06-20 中储粮成都储藏研究院有限公司 Automatic generation method and system for grain vehicle sampling point based on laser radar scanning and positioning

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